IOSP / Innospec Inc. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

इनोस्पेक इंक.
US ˙ NasdaqGS ˙ US45768S1050

मूलभूत आँकड़े
LEI 213800SQBACNY5IWJO68
CIK 1054905
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Innospec Inc.
SEC Filings (Chronological Order)
यह पृष्ठ SEC फाइलिंग की एक पूरी, कालानुक्रमिक सूची प्रदान करता है, ओनरशिप फाइलिंग को छोड़कर, जो हम अन्यत्र प्रदान करते हैं।
August 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 INNOSPEC INC. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2025 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of (IRS Employer i

August 6, 2025 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2025 FINANCIAL RESULTS Strong growth in Fuel Specialties operating income offsetting lower results in our other businesses Focus on sequential gross margin and operating income improvement in the second half of the yea

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS SECOND QUARTER 2025 FINANCIAL RESULTS Strong growth in Fuel Specialties operating income offsetting lower results in our other businesses Focus on sequential gross margin and operating income improvement in the second half of the year Debt-free balance sheet with over $266 million in net cash; $8.2 million in share repurchases GAAP EPS 94 cents and adjusted no

August 6, 2025 10-Q

98-0181725 Outstanding as of July 31, 2025 INNOSPEC INC. AND SUBSIDIARIES NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS LIQUIDITY AND FINANCIAL CONDITION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact nam

May 30, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Innospec Inc. (Exact name of the registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorpo

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Innospec Inc. (Exact name of the registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission file number) IRS Employer Identification No. 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principle

May 14, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2025 INNOSPEC INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2025 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 9, 2025 10-Q

98-0181725 Outstanding as of April 30, 2025 INNOSPEC INC. AND SUBSIDIARIES NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS LIQUIDITY AND FINANCIAL CONDITION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact na

May 9, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 9, 2025 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2025 FINANCIAL RESULTS Balanced results considering market volatility Excellent growth in Fuels Specialties offsetting lower results in Performance Chemicals and Oilfield Services $28.3 million cash generated from opera

Exhibit 99.1 INNOSPEC REPORTS FIRST QUARTER 2025 FINANCIAL RESULTS Balanced results considering market volatility Excellent growth in Fuels Specialties offsetting lower results in Performance Chemicals and Oilfield Services $28.3 million cash generated from operations; Net cash improves to $299.8 million Dividend increased by 10 percent; $50 million buyback initiated; Flexible debt-free balance sh

March 27, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

March 27, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

March 11, 2025 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 10, 2025 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

March 11, 2025 EX-99.1

INNOSPEC APPROVES NEW $50MM SHARE REPURCHASE PROGRAM

Exhibit 99.1 PRESS RELEASE INNOSPEC APPROVES NEW $50MM SHARE REPURCHASE PROGRAM Englewood, CO, March 10, 2025 – Innospec Inc. (NASDAQ: IOSP) today announces that its Board of Directors has approved a new $50 million share repurchase program. The company’s prior $50 million share repurchase program expired in the first quarter of 2025. Patrick S. Williams, President and Chief Executive Officer, sai

February 19, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact name of

February 19, 2025 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Performance Chemicals operating income up 14 percent; Fuel Specialties operating income up 7 percent As expected, Oilfield Services saw the continued impact of lower production chem

Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL RESULTS Performance Chemicals operating income up 14 percent; Fuel Specialties operating income up 7 percent As expected, Oilfield Services saw the continued impact of lower production chemical activity in Latin America $25.7 million cash generated from operations; Net cash of $289.2 million Non-cash settlement charge of $15

February 19, 2025 EX-96.1

Insider Trading Policy (filed herewith).

Exhibit 96.1 INNOSPEC INC. STOCK TRADING POLICY This Policy applies to all Officers, Directors, employees, contractors and agents (“Relevant Persons”) of Innospec Inc. and its subsidiaries (the “Company”), unless otherwise specified below. 1. General Policy It is the policy of the Company to comply with all applicable securities laws and regulations. Each and every provision of this Policy shall a

February 19, 2025 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec Finance U.S. LLC (USA) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Developments Limited (U.K.) Innospec Leuna GmbH (Germ

February 19, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2025 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

November 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exac

November 6, 2024 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2024 FINANCIAL RESULTS Performance Chemicals and Fuel Specialties operating income up double digits with margin expansion As expected, Oilfield Services results remain impacted by lower production chemical activity $73.

Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2024 FINANCIAL RESULTS Performance Chemicals and Fuel Specialties operating income up double digits with margin expansion As expected, Oilfield Services results remain impacted by lower production chemical activity $73.5 million cash generated from operations; Net cash improves to $303.8 million GAAP EPS $1.33 and adjusted non-GAAP EPS $1.35 Dividend for

November 6, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

August 7, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

August 7, 2024 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2024 FINANCIAL RESULTS Performance Chemicals operating income more than doubles on personal care growth Fuel Specialties operating income up double digits with margin expansion As expected, Oilfield Services results im

Exhibit 99.1 INNOSPEC REPORTS SECOND QUARTER 2024 FINANCIAL RESULTS Performance Chemicals operating income more than doubles on personal care growth Fuel Specialties operating income up double digits with margin expansion As expected, Oilfield Services results impacted by lower production chemical activity Debt-free balance sheet with over $240 million in net cash GAAP EPS $1.24 and adjusted non-G

August 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact nam

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Innospec Inc. (Exact name of the registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorpo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Innospec Inc. (Exact name of the registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission file number) (IRS Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principle

May 21, 2024 EX-10.1

Extension Request for Multicurrency Revolving Facility Agreement and Confirmation

Exhibit 10.1 Extension Request To: Barclays Bank PLC as Agent From: Innospec Inc. Dated: 25 April 2024 Dear Sirs Innospec Inc. – Multicurrency Revolving Facility Agreement dated 31 May 2023 (Facility Agreement) 1. We refer to the Facility Agreement. This is an Extension Request. Terms defined in the Facility Agreement have the same meaning in this Extension Request unless given a different meaning

May 21, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 INNOSPEC INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 16, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (I

May 14, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 10, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (I

May 10, 2024 EX-10.2

Innospec - 2024 Time-Based Shares Grant Agreement.

Exhibit 10.2 Restricted Stock Unit Grant Award Agreement Under the Innospec Inc. 2018 Omnibus Long-Term Incentive Plan THIS AGREEMENT is effective as of the Grant Date (as defined in Section 1) and is by and between the Participant and Innospec Inc. (the "Company"). WHEREAS, the Company maintains the Innospec Inc. 2018 Omnibus Long-Term Incentive Plan (the "Plan"), and the Participant has been sel

May 10, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 10, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact na

May 10, 2024 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2024 FINANCIAL RESULTS Strong contribution from Performance Chemicals drives operating income growth of 23 percent $80.6 million cash generated from operations; Net cash improves to $270.1 million Dividend increased by

Exhibit 99.1 INNOSPEC REPORTS FIRST QUARTER 2024 FINANCIAL RESULTS Strong contribution from Performance Chemicals drives operating income growth of 23 percent $80.6 million cash generated from operations; Net cash improves to $270.1 million Dividend increased by 10 percent; Strong debt-free balance sheet GAAP EPS of $1.65 and adjusted non-GAAP EPS of $1.75 Englewood, CO – May 9, 2024 – Innospec In

May 10, 2024 EX-10.1

Innospec - 2024 Performance Shares Grant Agreement.

Exhibit 10.1 Performance-Based Restricted Stock Unit Grant Award Agreement Under the Innospec Inc. 2018 Omnibus Long-Term Incentive Plan THIS AGREEMENT is effective as of the Grant Date (as defined in Section 1), and is by and between the Participant and Innospec Inc. (the "Company"). WHEREAS, the Company maintains the Innospec Inc. 2018 Omnibus Long-Term Incentive Plan (the "Plan"), and the Parti

April 3, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 3, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (

March 28, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

March 28, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

February 14, 2024 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec Finance U.S. LLC (USA) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Developments Limited (U.K.) Innospec Leuna GmbH (Germ

February 14, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 13, 2024 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 14, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact name of

February 14, 2024 EX-97.1

Innospec Inc. Clawback Policy (filed herewith).

Innospec INc. Clawback Policy The following Clawback Policy (the “Policy”) of Innospec Inc., a Delaware corporation (the “Company”) requires the recovery of erroneously awarded compensation in order to satisfy the requirements of Nasdaq Stock Market LLC (“Nasdaq”) Listing Rule 5608 (the “Listing Standards”) and to satisfy the requirements of Rule 10D-1 (“Rule 10D-1”), as adopted by the Securities

February 14, 2024 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Operating income grew sequentially and versus prior year in Performance Chemicals and Fuel Specialties Oilfield Services continued to deliver strong results completing an excellent

Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL RESULTS Operating income grew sequentially and versus prior year in Performance Chemicals and Fuel Specialties Oilfield Services continued to deliver strong results completing an excellent year QGP acquisition closed in the quarter; Excellent fit with Performance Chemicals $72.4 million cash generated from operations in the

February 13, 2024 SC 13G/A

IOSP / Innospec Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01186-innospecinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 11)* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule

January 12, 2024 SC 13G/A

IOSP / Innospec Inc. / Allspring Global Investments Holdings, LLC Passive Investment

SC 13G/A 1 Innospec20231231.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.4 ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to

December 11, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 8, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

December 11, 2023 EX-99.1

INNOSPEC ACQUIRES QGP QUÍMICA

Exhibit 99.1 INNOSPEC ACQUIRES QGP QUÍMICA Englewood, CO – December 11, 2023 – Innospec Inc. (NASDAQ: IOSP) today announced that it completed the acquisition of QGP Química Geral (“QGP”), a leading specialty chemicals company based in Brazil. Terms of the acquisition were not disclosed. With this acquisition, Innospec now has a significant manufacturing, customer-service and product development ba

November 8, 2023 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2023 FINANCIAL RESULTS Strong sequential improvement in Performance Chemicals; Continued excellent results in Oilfield Services; Consistent performance in Fuel Specialties $58.1 million cash generated from operations in

Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2023 FINANCIAL RESULTS Strong sequential improvement in Performance Chemicals; Continued excellent results in Oilfield Services; Consistent performance in Fuel Specialties $58.1 million cash generated from operations in the quarter; Net cash improves to $207.2 million Maintaining a strong, debt-free, flexible balance sheet Dividend for full year increase

November 8, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exac

August 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact nam

August 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

August 8, 2023 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2023 FINANCIAL RESULTS Continued strong results from our balanced portfolio with exceptional results in Oilfield Services $55.0 million cash generated from operations in the quarter; Net cash improves to $165.9 million

Exhibit 99.1 INNOSPEC REPORTS SECOND QUARTER 2023 FINANCIAL RESULTS Continued strong results from our balanced portfolio with exceptional results in Oilfield Services $55.0 million cash generated from operations in the quarter; Net cash improves to $165.9 million GAAP EPS $1.16 and adjusted non-GAAP EPS $1.28 $8.0 million charge to exit Brazil trading relationship reduced EPS by 21 cents; No furth

June 1, 2023 EX-10.2

$250,000,000 Multicurrency Revolving Facility Agreement with various lenders dated May 31, 2023 (Incorporated by reference to Exhibit 10.2 of the Company’s Form 8-K on June 1, 2023).

EX-10.2 Exhibit 10.2 CONFORMED COPY Dated 31 May 2023 INNOSPEC INC as Company BARCLAYS BANK PLC, J.P. MORGAN SECURITIES PLC, U.S. BANK NATIONAL ASSOCIATION AND WELLS FARGO BANK N.A. as Mandated Lead Arrangers BARCLAYS BANK PLC as Agent WELLS FARGO BANK, N.A. as Document Co-ordinator MULTICURRENCY REVOLVING FACILITY AGREEMENT FOR $250,000,000 CONFORMED COPY Contents Clause Page 1 Definitions and in

June 1, 2023 EX-10.1

INNOSPEC CLOSES ON NEW $250 MILLION CREDIT FACILITY

EX-10.1 Exhibit 10.1 INNOSPEC CLOSES ON NEW $250 MILLION CREDIT FACILITY Englewood, CO – May 31, 2023 Innospec Inc. (NASDAQ: IOSP) today announced that it has successfully closed on a multi-currency revolving credit agreement, to replace its existing banking facilities that were due to mature in September 2024. The new facilities will be provided by our existing banking partners, Barclays Bank PLC

June 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 31, 2023 INNOSPEC INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 31, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (I

May 19, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principal e

May 15, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2023 INNOSPEC INC. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (I

May 8, 2023 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 4, 2023 SC 13G/A

IOSP / Innospec Inc / Allspring Global Investments Holdings, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.3 ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) April 30, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X]

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact na

May 3, 2023 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2023 FINANCIAL RESULTS Good start to the year benefitting from a balanced business portfolio Revenues up 8 percent driven by strong growth in Oilfield Services Dividend increased by 10 percent GAAP EPS of $1.33 and adju

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FIRST QUARTER 2023 FINANCIAL RESULTS Good start to the year benefitting from a balanced business portfolio Revenues up 8 percent driven by strong growth in Oilfield Services Dividend increased by 10 percent GAAP EPS of $1.33 and adjusted non-GAAP EPS of $1.38 Englewood, CO – May 3, 2023 – Innospec Inc. (NASDAQ: IOSP) today announced its financial results for t

May 3, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

March 22, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

March 22, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

February 22, 2023 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

EX-21.1 Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec Finance U.S. LLC (USA) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Trading Limited (U.K.) Innospec Developments

February 22, 2023 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Strong operating income growth; 31 percent for the quarter and 42 percent for the year Margin improvement in the quarter and full year $78.4 million net cash generated from operatio

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL RESULTS Strong operating income growth; 31 percent for the quarter and 42 percent for the year Margin improvement in the quarter and full year $78.4 million net cash generated from operations in the quarter; Net cash improves to $147.1 million GAAP EPS $1.02; Adjusted non-GAAP EPS $1.20 both adversely impacted by 36

February 22, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2023 INNOSPEC INC. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2023 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 22, 2023 EX-10.19

Innospec Inc. Nonqualified Deferred Compensation Plan.* (Incorporated by reference to Exhibit 10.19 to the Registrant’s Form 10-K filed February 22, 2022)

EX-10.19 Exhibit 10.19 INNOSPEC INC. NONQUALIFIED DEFERRED COMPENSATION PLAN As Amended and Restated Effective January 1, 2023 INNOSPEC INC. NONQUALIFIED DEFERRED COMPENSATION PLAN Effective as of the 1st day of January, 2023, Innospec, Inc. (the “Controlling Company”) hereby amends and restates the Innospec Inc. Nonqualified Deferred Compensation Plan (the “Plan”). BACKGROUND AND PURPOSE A. Backg

February 22, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2022 or ☐ TRANSITIONREPORT PURSUANT TO SEC

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2022 or ☐ TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC IN

February 9, 2023 SC 13G/A

IOSP / Innospec Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Innospec Inc. Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

January 13, 2023 SC 13G/A

IOSP / Innospec Inc. / Allspring Global Investments Holdings, LLC Passive Investment

SC 13G/A 1 Innospec45768S105amend2.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.2 ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule purs

December 14, 2022 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 13, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

November 9, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 I

November 9, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 8, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 9, 2022 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2022 FINANCIAL RESULTS All businesses contributing to sales growth of 36 percent and operating income growth of 60 percent Dividend for full year increased by 10 percent; $2.3 million of share repurchases in the quarter

EX-99.1 2 d377756dex991.htm EX-99.1 Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2022 FINANCIAL RESULTS All businesses contributing to sales growth of 36 percent and operating income growth of 60 percent Dividend for full year increased by 10 percent; $2.3 million of share repurchases in the quarter $39.8 million cash generated from operations; Net cash position improves to $100.5 million GAAP EPS

August 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSP

August 3, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

August 3, 2022 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2022 FINANCIAL RESULTS Strong contributions from all businesses with revenues up 32 percent and operating income up 25 percent Gross margins maintained sequentially from Q1 with pricing action to offset high inflation

Exhibit 99.1 INNOSPEC REPORTS SECOND QUARTER 2022 FINANCIAL RESULTS Strong contributions from all businesses with revenues up 32 percent and operating income up 25 percent Gross margins maintained sequentially from Q1 with pricing action to offset high inflation environment Strong volume growth in Performance Chemicals; Plans for further capacity expansion to meet growing demand GAAP EPS of $1.29

May 19, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principal e

May 6, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOS

May 4, 2022 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS Strong contributions from all businesses with revenues up 39 percent and operating income up 57 percent Gross margin in the expected range despite high inflationary and sustained supply chain pres

Exhibit 99.1 INNOSPEC REPORTS FIRST QUARTER 2022 FINANCIAL RESULTS Strong contributions from all businesses with revenues up 39 percent and operating income up 57 percent Gross margin in the expected range despite high inflationary and sustained supply chain pressures Dividend increased by 11 percent; Share repurchases commenced GAAP EPS of $1.46 and adjusted non-GAAP EPS of $1.53 Englewood, CO ?

May 4, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 3, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

March 18, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 d314952ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as

March 18, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

February 16, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ☐ TRANSITIONREPORT PURSUANT TO SECT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC

February 16, 2022 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record quarterly and full year sales in Performance Chemicals and Fuel Specialties Continued sequential sales and operating income growth in Oilfield Services $68.8 million net cash

Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2021 FINANCIAL RESULTS Record quarterly and full year sales in Performance Chemicals and Fuel Specialties Continued sequential sales and operating income growth in Oilfield Services $68.8 million net cash generated in the quarter from operations; Net cash position improves to $141.7 million New share repurchase program up to

February 16, 2022 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Trading Limited (U.K.) Innospec Developments Limited (U.K.) Innospec Leuna GmbH (Germ

February 16, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 15, 2022 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 10, 2022 SC 13G/A

IOSP / Innospec Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Innospec Inc. Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule

February 8, 2022 SC 13G/A

IOSP / Innospec Inc. / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5 )* Innospec Inc (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

February 8, 2022 SC 13G/A

IOSP / Innospec Inc. / Allspring Global Investments Holdings, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) January 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X]

January 18, 2022 SC 13G

IOSP / Innospec Inc. / Allspring Global Investments Holdings, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) December 31,2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X]

December 8, 2021 SC 13G/A

IOSP / Innospec Inc. / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) November 30, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [

December 7, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 2, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

December 7, 2021 EX-99.1

INNOSPEC APPOINTS LESLIE J.PARRETTE AS NON-EMPLOYEE DIRECTOR

Exhibit 99.1 PRESS RELEASE INNOSPEC APPOINTS LESLIE J.PARRETTE AS NON-EMPLOYEE DIRECTOR Englewood, CO ? December 6, 2021 ? Innospec Inc. (NASDAQ: IOSP) today announced that it has appointed Mr. Leslie J. Parrette as a non-employee director, effective January 1, 2022. Mr. Parrette has 14 years experience in private practice as a corporate and transaction lawyer. He subsequently spent 20 years as Ge

November 10, 2021 SC 13G/A

IOSP / Innospec Inc. / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) October 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X

November 3, 2021 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2021 FINANCIAL RESULTS Performance Chemicals achieves record quarterly sales with operating income up 44 percent Strong sales and operating income growth in Fuel Specialties and Oilfield Services GAAP EPS 94 cents and a

Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS THIRD QUARTER 2021 FINANCIAL RESULTS Performance Chemicals achieves record quarterly sales with operating income up 44 percent Strong sales and operating income growth in Fuel Specialties and Oilfield Services GAAP EPS 94 cents and adjusted non-GAAP EPS of $1.15 Dividend for full year increased by 12 percent Englewood, CO ? November 2, 2021 ? Innospec In

November 3, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 3, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 I

August 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

August 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT T

Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 4, 2021 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2021 FINANCIAL RESULTS Performance Chemicals had record quarterly sales with operating income up 47 percent Strong sequential sales and operating income improvement in Fuel Specialties and Oilfield Services GAAP EPS 90

Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS SECOND QUARTER 2021 FINANCIAL RESULTS Performance Chemicals had record quarterly sales with operating income up 47 percent Strong sequential sales and operating income improvement in Fuel Specialties and Oilfield Services GAAP EPS 90 cents and adjusted non-GAAP EPS of $1.30; both benefited by 16 cents from AvGas order phasing Healthy liquidity position a

May 6, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 5, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 5, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 5, 2021 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2021 FINANCIAL RESULTS Record sales and operating income in Performance Chemicals Continued recovery in Fuel Specialties and Oilfield Services Strong cash generation and excellent liquidity position; Improvement in net

Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS FIRST QUARTER 2021 FINANCIAL RESULTS Record sales and operating income in Performance Chemicals Continued recovery in Fuel Specialties and Oilfield Services Strong cash generation and excellent liquidity position; Improvement in net cash to $116.6 million GAAP EPS $0.94 and adjusted non-GAAP EPS of $1.06 reduced by 14 cents from higher share-based compen

April 30, 2021 SD

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood, Colorado, 80112 (Address of principal ex

April 20, 2021 EX-99.1

Press Speculation Regarding Possible Offer for Elementis plc (“Elementis”)

EX-99.1 Exhibit 99.1 20 April 2021 Press Speculation Regarding Possible Offer for Elementis plc (“Elementis”) Innospec Inc. (“Innospec”), a global speciality chemicals company, notes the recent speculation with regard to a potential offer for Elementis plc. On 31 March 2021, an approach was made by Innospec to the Board of Elementis. This approach was rejected by the Board of Elementis on 9th Apri

April 20, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 20, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Delaware 001-13879 98-0181725 (State or Other Jurisdiction of Incorporation) (Commission File Numbe

March 19, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

March 19, 2021 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

February 25, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 17, 2021 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Continued strong revenue growth and operating income in Performance Chemicals Further sequential improvement in sales and operating income for Fuel Specialties Oilfield Services ret

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL RESULTS Continued strong revenue growth and operating income in Performance Chemicals Further sequential improvement in sales and operating income for Fuel Specialties Oilfield Services returned to positive operating income Excellent cash generation enhanced strong liquidity position; Improvement in net cash to $104.

February 17, 2021 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Trading Limited (U.K.) Innospec Developments Limited (U.K.) Innospec Leuna GmbH (Germ

February 17, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 16, 2021 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 17, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ? TRANSITIONREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC INC. (Exact name of r

February 12, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Innospec Inc (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

February 11, 2021 SC 13G/A

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Innospec Inc. Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule

December 22, 2020 CORRESP

-

CORRESP December 22, 2020 VIA EMAIL AND EDGAR Ms. Abby Adams Division of Corporation Finance Office of Life Sciences Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Innospec, Inc. Form 10-K for the Fiscal Year Ended December 31, 2019 filed February 19, 2020 File No. 001-13879 Dear Ms Adams: We are submitting this response to your letter dated December 16, 2020 (the

November 6, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 4, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 I

November 4, 2020 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2020 FINANCIAL RESULTS Performance Chemicals operating income up 33 percent driven by strong demand Sequential improvement for Fuel Specialties and Oilfield Services Excellent cash generation and improvement in net cash

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2020 FINANCIAL RESULTS Performance Chemicals operating income up 33 percent driven by strong demand Sequential improvement for Fuel Specialties and Oilfield Services Excellent cash generation and improvement in net cash to $66.0 million Semi-annual dividend maintained at 52 cents; GAAP EPS of $0.51 and adjusted non-GAAP EPS of $0.71 Englewood, CO

November 4, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 2, 2020 EX-99.1

INNOSPEC APPOINTS KELLER ARNOLD AS NON-EMPLOYEE DIRECTOR

EX-99.1 Exhibit 99.1 INNOSPEC APPOINTS KELLER ARNOLD AS NON-EMPLOYEE DIRECTOR Englewood, CO – November 2, 2020 – Innospec Inc. (NASDAQ: IOSP) today announced that it has appointed Ms Elizabeth Keller Arnold as a non-employee director, effective November 1, 2020. After a long and successful career with General Electric and Tyco, Ms. Arnold was most recently Chief Financial Officer of Houghton Inter

November 2, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 1, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

October 6, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporati

October 6, 2020 EX-10.1

Extension Request for Multicurrency Revolving Facility Agreement and Confirmation (incorporated by reference to Exhibit 10.1 of the Company’s Form 8-K filed October 6, 2020)

EX-10.1 Exhibit 10.1 Form of Extension Request To: National Westminster Bank Plc as Agent From: Innospec Inc. Dated: 25 August 2020 Dear Sirs Innospec Inc. – Facility Agreement dated 26 September 2019 (Facility Agreement) 1. We refer to the Facility Agreement. This is an Extension Request. Terms defined in the Facility Agreement have the same meaning in this Extension Request unless given a differ

August 5, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSP

August 5, 2020 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2020 FINANCIAL RESULTS Excellent results in Performance Chemicals despite market volatility with operating income up 11 percent Fuel Specialties and Oilfield Services impacted by significant decline in demand Octane Ad

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS SECOND QUARTER 2020 FINANCIAL RESULTS Excellent results in Performance Chemicals despite market volatility with operating income up 11 percent Fuel Specialties and Oilfield Services impacted by significant decline in demand Octane Additives concludes as expected; Restructuring charge taken Impairment charge in Oilfield Services Drilling business Excellent cash

August 5, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

May 11, 2020 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 6, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

May 6, 2020 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2020 FINANCIAL RESULTS Liquidity maintained by positive operating cash flow and conservative cash management Increase in GAAP EPS of 15 percent; Adjusted non-GAAP EPS up 14 percent GAAP EPS $1.34 and adjusted EPS of $1.

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FIRST QUARTER 2020 FINANCIAL RESULTS Liquidity maintained by positive operating cash flow and conservative cash management Increase in GAAP EPS of 15 percent; Adjusted non-GAAP EPS up 14 percent GAAP EPS $1.34 and adjusted EPS of $1.42 benefit by 18 cents from lower share-based compensation Innospec adapting to the economic challenges of the COVID-19 pandemic

May 6, 2020 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOS

May 6, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (IR

April 28, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

April 27, 2020 SD

- SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principa

April 9, 2020 DEFA14A

IOSP / Innospec, Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 26, 2020 DEFA14A

IOSP / Innospec, Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 20, 2020 DEF 14A

IOSP / Innospec, Inc. DEF 14A - - DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 20, 2020 DEFA14A

IOSP / Innospec, Inc. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 2, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation) (

February 20, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 19, 2020 EX-3.1

Amended and Restated Certificate of Incorporation of the Company (Incorporated by reference to Exhibit 3.1 of the Company’s Form 10-K on February 19, 2020).

EX-3.1 Exhibit 3.1 Delaware Page 1 The First State I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS FILED FROM AND INCLUDING THE RESTATED CERTIFICATE OR A MERGER WITH A RESTATED CERTIFICATE ATTACHED OF “INNOSPEC INC.” AS RECEIVED AND FILED IN THIS OFFICE. THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED: REST

February 19, 2020 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSPEC I

February 19, 2020 EX-4.1

Description of Common Stock (Incorporated by reference to Exhibit 4.1 of the Company’s Form 10-K on February 19, 2020).

EX-4.1 3 d853900dex41.htm EX-4.1 Exhibit 4.1 DESCRIPTION OF COMMON STOCK The following is a summary of the material terms of the common stock of Innospec Inc., a Delaware corporation (the “Company,” “Innospec,” “we,” “our” or “us”). Because it is only a summary, it may not contain all of the information that may be important to you, and should be read in conjunction with the restated certificate o

February 19, 2020 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

EX-21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Alcor Chemie Vertriebs GmbH (Switzerland) Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Trading Limited (U.K.) Innospec Developments Lim

February 18, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 18, 2020 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

February 18, 2020 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS Oilfield Services revenues up 12 percent and operating income up 48 percent Gross margin improvement in Performance Chemicals drives record operating income Fuel Specialties impacte

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL RESULTS Oilfield Services revenues up 12 percent and operating income up 48 percent Gross margin improvement in Performance Chemicals drives record operating income Fuel Specialties impacted by supply disruption and expect operations to normalize by the end of Q1 GAAP EPS $1.26 and adjusted EPS of $1.47 impacted by 1

February 12, 2020 SC 13G/A

IOSP / Innospec, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* INNOSPEC INC (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 12, 2020 SC 13G/A

IOSP / Innospec, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 1

February 4, 2020 SC 13G

IOSP / Innospec, Inc. / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) INNOSPEC INC (Name of Issuer) COM (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X

November 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

November 6, 2019 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2019 FINANCIAL RESULTS Strong revenue growth in Fuel Specialties and Oilfield Services Operating income up 14 percent; Excellent cash generation reduces net debt to 0.1x EBITDA GAAP diluted EPS up 45 percent; Adjusted n

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2019 FINANCIAL RESULTS Strong revenue growth in Fuel Specialties and Oilfield Services Operating income up 14 percent; Excellent cash generation reduces net debt to 0.1x EBITDA GAAP diluted EPS up 45 percent; Adjusted non-GAAP EPS up 17 percent Dividend for full year increased by 15 percent Englewood, CO – November 5, 2019 – Innospec Inc. (NASDAQ

November 6, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 I

September 30, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 26, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporati

September 30, 2019 EX-10.1

$250,000,000 Multicurrency Revolving Facility Agreement with various lenders dated September 26, 2019 (Incorporated by reference to Exhibit 10.1 of the Company’s Form 8-K on September 30, 2019).

EX-10.1 Exhibit 10.1 CONFORMED COPY Dated 26 September 2019 INNOSPEC INC as Company BARCLAYS BANK PLC, CREDIT SUISSE (SWITZERLAND) LTD, NATIONAL WESTMINSTER BANK PLC, U.S. BANK NATIONAL ASSOCIATION AND WELLS FARGO BANK N.A. as Mandated Lead Arrangers NATIONAL WESTMINSTER BANK PLC as Agent WELLS FARGO BANK N.A. as Document Co-ordinator MULTICURRENCY REVOLVING FACILITY AGREEMENT FOR $250,000,000 CON

August 6, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 6, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

August 6, 2019 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2019 FINANCIAL RESULTS Operating income up 12 percent; Operating income excluding Octane Additives up 37 percent Strong sales growth in Oilfield Services and its operating income more than doubled EPS impacted by highe

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS SECOND QUARTER 2019 FINANCIAL RESULTS Operating income up 12 percent; Operating income excluding Octane Additives up 37 percent Strong sales growth in Oilfield Services and its operating income more than doubled EPS impacted by higher share-based compensation accruals and lower Octane Additives contribution Strong cash generation reduces net debt

August 6, 2019 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-13879 INNOSP

July 1, 2019 8-K

Regulation FD Disclosure

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 1, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorpor

June 3, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 1, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

June 3, 2019 EX-99.1

INNOSPEC APPOINTS CLAUDIA POCCIA AS NON-EMPLOYEE DIRECTOR

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC APPOINTS CLAUDIA POCCIA AS NON-EMPLOYEE DIRECTOR Englewood, CO – June 3, 2019 – Innospec Inc. (NASDAQ: IOSP) today announced that it has appointed Claudia Poccia as a non-employee director, effective July 1, 2019. Claudia Poccia is a leading beauty industry expert with over 30 years of C-suite experience with such iconic companies as The Estée Lauder Com

May 28, 2019 SD

IOSP / Innospec, Inc. SD - - SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT INNOSPEC INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 1-13879 98-0181725 (State or Other Jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Identification No.) 8310 South Valley Highway Suite 350 Englewood Colorado 80112 (Address of principa

May 24, 2019 8-K

Changes in Registrant's Certifying Accountant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 24, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation

May 13, 2019 8-K

Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

May 8, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

May 8, 2019 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2019 FINANCIAL RESULTS Strong sales growth up 8 percent; Semi-annual dividend increased 14 percent Operating income up 25 percent; All strategic businesses delivered growth Increase in GAAP EPS of 30 percent; Adjusted n

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS FIRST QUARTER 2019 FINANCIAL RESULTS Strong sales growth up 8 percent; Semi-annual dividend increased 14 percent Operating income up 25 percent; All strategic businesses delivered growth Increase in GAAP EPS of 30 percent; Adjusted non-GAAP EPS up 23 percent Englewood, CO – May 7, 2019 – Innospec Inc. (NASDAQ: IOSP) today announced its financial

May 8, 2019 10-Q

Quarterly Report - 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 11, 2019 DEFA14A

IOSP / Innospec, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

April 11, 2019 EX-16.1

Letter regarding change in certifying accountant dated April 10, 2019 (Incorporated by reference to Exhibit 16.1 of the Company’s Form 8-K filed April 11, 2019).

EX-16.1 Exhibit 16.1 KPMG LLP Tel +44 (0) 161 246 4000 Audit Fax +44 (0) 161 246 4040 1 St Peter’s Square Manchester M2 3AE United Kingdom Securities and Exchange Commission Washington, D.C. 20549 10 April 2019 Ladies and Gentlemen We are currently principal accountants for Innospec Inc. (the “Company”) and, under the date of February 20, 2019 we reported on the consolidated financial statements o

April 11, 2019 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 5, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporatio

March 22, 2019 DEFA14A

IOSP / Innospec, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 22, 2019 DEF 14A

IOSP / Innospec, Inc. DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 20, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2019 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorpor

February 20, 2019 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS Record sales for the quarter and full year; Strong Q4 sales growth in Fuel Specialties and Oilfield Services Gross margin improvements in Performance Chemicals and Oilfield Services

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2018 FINANCIAL RESULTS Record sales for the quarter and full year; Strong Q4 sales growth in Fuel Specialties and Oilfield Services Gross margin improvements in Performance Chemicals and Oilfield Services GAAP EPS $0.83 impacted by US Tax Reform; Adjusted EPS of $1.62 a new quarterly record Excellent cash generation; Net debt reduc

February 20, 2019 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

EX-21.1 Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Alcor Chemie Vertriebs GmbH (Switzerland) Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Leuna GmbH (Germany) Innospec Limit

February 20, 2019 10-K

IOSP / Innospec, Inc. 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 20, 2019 EX-12.1

Computation of Financial Ratios (filed herewith).

EX-12.1 Exhibit 12.1 EXHIBIT 12.1 - STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS (in millions except financial ratios, share and per share data) 2018 2017 2016 2015 2014 1. NET INCOME ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENTAGE OF SALES A Net income attributable to Innospec Inc. $ 85.0 $ 61.8 $ 81.3 $ 119.5 $ 84.1 B Net sales $ 1476.9 $ 1306.8 $ 883.4 $ 1012.3 $ 960.9 A % of B 5.8 % 4.7 %

February 11, 2019 SC 13G/A

IOSP / Innospec, Inc. / VANGUARD GROUP INC Passive Investment

innospecinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6 )* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designat

February 8, 2019 SC 13G/A

IOSP / Innospec, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* INNOSPEC INC (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

November 7, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2018 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorpora

November 7, 2018 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2018 FINANCIAL RESULTS Improved growth in revenue and operating income in all core businesses Net sales up 9 percent; Operating income up 15 percent; Operating income before restructuring charge up 32 percent GAAP EPS d

EX-99.1 Exhibit 99.1 INNOSPEC REPORTS THIRD QUARTER 2018 FINANCIAL RESULTS Improved growth in revenue and operating income in all core businesses Net sales up 9 percent; Operating income up 15 percent; Operating income before restructuring charge up 32 percent GAAP EPS down 12 percent; Adjusted EPS up 20 percent; Strong cash generation has reduced leverage Dividend for 2018 increased by 15 percent

November 7, 2018 10-Q

IOSP / Innospec, Inc. 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 5, 2018 CORRESP

IOSP / Innospec, Inc. CORRESP

CORRESP November 5, 2018 VIA EMAIL AND EDGAR Ms. Tracey Houser Staff Accountant Division of Corporation Finance Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Innospec, Inc. Form 10-K for the Fiscal Year Ended December 31, 2017 filed February 15, 2018 Form 10-Q for the Fiscal Quarter Ended June 30, 2018 filed August 8, 2018 File No. 001-13879 Dear Ms Houser: We ar

August 8, 2018 10-Q

IOSP / Innospec, Inc. 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

August 7, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2018 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorp

August 7, 2018 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2018 FINANCIAL RESULTS Revenues up 10 percent with double digit growth in all core businesses Performance Chemicals operating income up 49 percent driven by new technologies Operating income impacted by lower Octane Ad

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS SECOND QUARTER 2018 FINANCIAL RESULTS Revenues up 10 percent with double digit growth in all core businesses Performance Chemicals operating income up 49 percent driven by new technologies Operating income impacted by lower Octane Additives contribution and higher share-based compensation GAAP EPS of 89 cents, down 14 percent; Adjusted non-GAAP E

July 10, 2018 SC 13G/A

IOSP / Innospec, Inc. / VANGUARD GROUP INC Passive Investment

innospecinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5 )* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: June 29, 2018 Check the appropriate box to designate th

June 8, 2018 S-8

IOSP / Innospec, Inc. S-8

S-8 As filed with the Securities and Exchange Commission on June 8, 2018 Registration No.

May 10, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 9, 2018 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporation)

May 10, 2018 EX-10.1

Innospec Inc. 2018 Omnibus Long-Term Incentive Plan (Incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed May 10, 2018).

EX-10.1 Exhibit 10.1 INNOSPEC INC. 2018 OMNIBUS LONG-TERM INCENTIVE PLAN 1 TABLE OF CONTENTS Page SECTION 1 GENERAL 4 1.1. Purpose 4 1.2. Participation 4 1.3. Operation and Administration 4 1.4. History 4 SECTION 2 DEFINITIONS 4 SECTION 3 SHARES AND PLAN LIMITS 8 3.1. Shares of Stock and Other Amounts Subject to Plan 8 3.2. Adjustments 9 3.3. Plan Limitations 9 SECTION 4 OPTIONS 11 4.1. Grant of O

May 10, 2018 EX-10.2

Innospec Inc. ShareSave Plan 2008 (as amended and restated) (Incorporated by reference to Exhibit 10.2 to the Registrant’s Form 8-K filed May 10, 2018).

EX-10.2 Exhibit 10.2 INNOSPEC INC. RULES of the INNOSPEC INC. SHARESAVE PLAN 2008 (as amended and restated May 2018) 1 CONTENTS 1. PURPOSE 4 2. INTERPRETATION 4 3. EFFECTIVE DATE AND DURATION OF PLAN 4 4. PLAN LIMITS 5 5. PLAN PARTS 5 6. ISSUE AND AVAILABILITY OF PLAN SHARES 5 7. RELATIONSHIP OF PLAN TO CONTRACT OF EMPLOYMENT 6 8. ADMINISTRATION OF PLAN 6 9. AMENDMENT OF PLAN 7 10. NOTICES 8 11. G

May 9, 2018 10-Q

IOSP / Innospec, Inc. 10-Q (Quarterly Report)

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 9, 2018 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 8, 2018 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I.R.S.

May 9, 2018 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2018 FINANCIAL RESULTS Excellent sales growth — up 23 percent; Operating income up 14 percent Performance Chemicals operating income up 102 percent; Fuel Specialties operating income up 4 percent Semi-annual dividend in

EX-99.1 PRESS RELEASE INNOSPEC REPORTS FIRST QUARTER 2018 FINANCIAL RESULTS Excellent sales growth — up 23 percent; Operating income up 14 percent Performance Chemicals operating income up 102 percent; Fuel Specialties operating income up 4 percent Semi-annual dividend increased 15 percent; Ninth consecutive increase Englewood, CO – May 8, 2018 – Innospec Inc. (NASDAQ: IOSP) today announced its fi

April 25, 2018 DEFA14A

IOSP / Innospec, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

April 25, 2018 8-K

Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2018 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporati

March 22, 2018 DEFA14A

IOSP / Innospec, Inc. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 22, 2018 DEF 14A

IOSP / Innospec, Inc. DEF 14A

DEF 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Pro

March 15, 2018 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): March 12, 2018 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I.R

March 15, 2018 EX-16.1

Letter from KPMG Audit Plc to the Securities and Exchange Commission, dated March 15, 2018

EX-16.1 KPMG Audit plc Audit Tel +44 (0) 161 246 4000 Fax +44 (0) 161 246 4040 1 St Peter’s Square Manchester M2 3AE United Kingdom Securities and Exchange Commission Washington, D.C. 20549 15 March 2018 Ladies and Gentlemen We were previously principal accountants for Innospec Inc. (the “Company”) and, under the date of February 15, 2018, we reported on the consolidated financial statements of In

February 15, 2018 10-K

IOSP / Innospec, Inc. 10-K (Annual Report)

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 15, 2018 EX-12.1

Computation of Financial Ratios (filed herewith).

EX-12.1 Exhibit 12.1 EXHIBIT 12.1 - STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS (in millions except financial ratios, share and per share data) 2017 2016 2015 2014 2013 1. NET INCOME ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENTAGE OF SALES A   Net income attributable to Innospec Inc. $ 61.8 $ 81.3 $ 119.5 $ 84.1 $ 77.8 B    Net sales $ 1306.8 $ 883.4 $ 1012.3 $ 960.9 $ 818.8 A % of B 4.7 % 9

February 15, 2018 EX-21.1

Principal Subsidiaries of the Registrant (filed herewith).

EX-21.1 Exhibit 21.1 EXHIBIT 21.1 PRINCIPAL SUBSIDIARIES OF THE REGISTRANT Alcor Chemie Vertriebs GmbH (Switzerland) Innospec Active Chemicals LLC (USA) Innospec Deutschland GmbH (Germany) Innospec Finance Limited (U.K.) Innospec France SA (France) Innospec Fuel Specialties LLC (USA) Innospec Holdings Limited (U.K.) Innospec International Limited (U.K.) Innospec Leuna GmbH (Germany) Innospec Limit

February 14, 2018 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS Revenues up 49 percent year over year; Operating income up 19 percent Adjusted EBITDA up 52 percent; Adjusted non-GAAP EPS up 35 percent Strong cash generation; Net debt reduced to

EX-99.1 PRESS RELEASE INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2017 FINANCIAL RESULTS Revenues up 49 percent year over year; Operating income up 19 percent Adjusted EBITDA up 52 percent; Adjusted non-GAAP EPS up 35 percent Strong cash generation; Net debt reduced to $134.1 million; Record full year revenue over $1.3 billion Net loss of $4.8 million includes $40.6 million one-time tax charge d

February 14, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 13, 2018 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (

February 13, 2018 SC 13G/A

IOSP / Innospec, Inc. / Huber Capital Management LLC - AMENDED STATEMENT OF ACQUISITION OF BENEFICIAL OWNERSHIP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 9, 2018 SC 13G/A

IOSP / Innospec, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* INNOSPEC INC (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule i

February 9, 2018 SC 13G/A

IOSP / Innospec, Inc. / VANGUARD GROUP INC Passive Investment

innospecinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2017 Check the appropriate box to designat

November 8, 2017 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 7, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I

November 8, 2017 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2017 FINANCIAL RESULTS Net sales up 62 percent; Net income and adjusted EBITDA more than doubled Strong sales growth in all core businesses Excellent cash generation; Net debt further reduced Annual dividend up 15 perce

EX-99.1 PRESS RELEASE INNOSPEC REPORTS THIRD QUARTER 2017 FINANCIAL RESULTS Net sales up 62 percent; Net income and adjusted EBITDA more than doubled Strong sales growth in all core businesses Excellent cash generation; Net debt further reduced Annual dividend up 15 percent; Eighth successive dividend increase Englewood, CO ? November 7, 2017 ? Innospec Inc. (NASDAQ: IOSP) today announced its fina

November 8, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 7, 2017 8-K/A

Submission of Matters to a Vote of Security Holders

Innospec Inc. (Form: 8-K/A) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 10, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I

August 9, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): August 8, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I.R.S. Employer of i

August 9, 2017 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2017 FINANCIAL RESULTS Record revenues of $326.3 million up 43 percent over Q2 2016 and 11 percent sequentially over Q1 2017 Operating income up 21 percent and Adjusted EBITDA up 10 percent year-on-year GAAP EPS of $1.

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS SECOND QUARTER 2017 FINANCIAL RESULTS Record revenues of $326.3 million up 43 percent over Q2 2016 and 11 percent sequentially over Q1 2017 Operating income up 21 percent and Adjusted EBITDA up 10 percent year-on-year GAAP EPS of $1.06; Adjusted non-GAAP EPS of $1.16 Strategy delivering new technologies to underpin further organic growth Englewoo

August 9, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 11, 2017 8-K

Submission of Matters to a Vote of Security Holders

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 10, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I.R.S

May 10, 2017 EX-99.1

INNOSPEC REPORTS FIRST QUARTER 2017 FINANCIAL RESULTS Strong quarter with growth in all core business units; Continued recovery in Oilfield Services as anticipated Like-for-like sales up 11 percent; Sales up 39 percent including acquisition GAAP EPS

EX-99.1 PRESS RELEASE INNOSPEC REPORTS FIRST QUARTER 2017 FINANCIAL RESULTS Strong quarter with growth in all core business units; Continued recovery in Oilfield Services as anticipated Like-for-like sales up 11 percent; Sales up 39 percent including acquisition GAAP EPS of $0.70; Adjusted non-GAAP EPS of $1.00 up 8 percent Semi-annual dividend raised by 15 percent to 38 cents; Seventh consecutive

May 10, 2017 8-K

Innospec LIVE FILING (Current Report/Significant Event)

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): May 9, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I.R.S.

May 10, 2017 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 17, 2017 DEFA14A

Innospec DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Pro

March 17, 2017 DEF 14A

Innospec DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 15, 2017 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): February 14, 2017 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission File

February 15, 2017 EX-99.1

INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2016 FINANCIAL RESULTS Strong end to the year – GAAP EPS of $0.90 and adjusted non-GAAP EPS of $1.09 All businesses performed as anticipated – very well positioned for 2017 Acquisition of Huntsman busines

EX-99.1 EXHIBIT 99.1 PRESS RELEASE INNOSPEC REPORTS FOURTH QUARTER AND FULL YEAR 2016 FINANCIAL RESULTS Strong end to the year ? GAAP EPS of $0.90 and adjusted non-GAAP EPS of $1.09 All businesses performed as anticipated ? very well positioned for 2017 Acquisition of Huntsman business successfully completed ? portfolio now well balanced Continued strong cash generation ? balance sheet in great sh

February 15, 2017 EX-12.1

You’ve Exceeded the SEC’s Traffic Limit

Exhibit 12.1 EXHIBIT 12.1 ? STATEMENT REGARDING COMPUTATION OF FINANCIAL RATIOS (in millions except financial ratios, share and per share data) 2016 2015 2014 2013 2012 1. NET INCOME ATTRIBUTABLE TO INNOSPEC INC. AS A PERCENTAGE OF SALES A Net income attributable to Innospec Inc. $ 81.3 $ 119.5 $ 84.1 $ 77.8 $ 66.9 B Net sales $ 883.4 $ 1012.3 $ 960.9 $ 818.8 $ 776.4 A % of B 9.2 % 11.8 % 8.8 % 9.

February 15, 2017 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUALREPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2016 or ☐ TRANSITION REPORT PURSUANT TO SEC

10-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

February 15, 2017 EX-21.1

You’ve Exceeded the SEC’s Traffic Limit

U.S. Securities and Exchange Commission You’ve Exceeded the SEC’s Traffic Limit Your request rate has exceeded the SEC’s maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes. Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains

February 13, 2017 SC 13G/A

IOSP / Innospec, Inc. / Huber Capital Management LLC - AMENDED STATEMENT OF ACQUISITION OF BENEFICIAL OWNERSHIP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 10, 2017 SC 13G/A

IOSP / Innospec, Inc. / VANGUARD GROUP INC Passive Investment

innospecinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3 )* Name of issuer: Innospec Inc Title of Class of Securities: Common Stock CUSIP Number: 45768S105 Date of Event Which Requires Filing of this Statement: December 31, 2016 Check the appropriate box to designat

February 9, 2017 SC 13G

IOSP / Innospec, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* INNOSPEC INC (Name of Issuer) Common Stock (Title of Class of Securities) 45768S105 (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is

January 10, 2017 CORRESP

Innospec ESP

CORRESP January 10, 2017 VIA EMAIL AND EDGAR Mr. Terence O?Brien Accounting Branch Chief Division of Corporation Finance Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Innospec Inc. Form 10-K for the Fiscal Year Ended December 31, 2015 filed February 17, 2016 Form 10-Q for the Fiscal Quarter Ended September 30, 2016 filed November 3, 2016 Form 8-K filed November 3

January 4, 2017 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): December 30, 2016 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (

January 3, 2017 8-K

Innospec 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 3, 2017 INNOSPEC INC. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission File Nu

January 3, 2017 EX-99.1

INNOSPEC COMPLETES ACQUISITION OF HUNTSMAN’S EUROPEAN SURFACTANT BUSINESS

EX-99.1 Exhibit 99.1 INNOSPEC COMPLETES ACQUISITION OF HUNTSMAN?S EUROPEAN SURFACTANT BUSINESS Englewood, CO ? December 30, 2016 ? Innospec Inc. (NASDAQ: IOSP) today announced that it has completed the acquisition of the European Differentiated Surfactants business from Huntsman in line with the agreement announced on August 3, 2016. The business is currently managed from Belgium, and has manufact

January 3, 2017 EX-2.1

Amended and Restated Share and Asset Purchase Agreement, dated as of December 22, 2016, by and between Huntsman Investments (Netherlands) B.V. and Innospec International Ltd (Incorporated by reference to Exhibit 2.1 of the Company’s Form 8-K on January 3, 2017).

EX-2.1 Exhibit 2.1 CLIFFORD CHANCE LLP ADVOCATEN SOLICITORS NOTARIS BELASTINGADVISEURS EXECUTION VERSION HUNTSMAN INVESTMENTS (NETHERLANDS) B.V. AS THE SELLER AND INNOSPEC INTERNATIONAL LTD AS THE PURCHASER AMENDED AND RESTATED SHARE AND ASSET PURCHASE AGREEMENT REGARDING THE EUROPEAN DIFFERENTIATED SURFACTANTS (?EDS?) BUSINESS CONTENTS Clause Page 1. Definitions 1 2. Sale and Purchase of EDS Shar

December 22, 2016 CORRESP

Innospec ESP

CORRESP December 22, 2016 VIA EMAIL AND EDGAR Mr. Terence O?Brien Accounting Branch Chief Division of Corporation Finance Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Innospec Inc. Form 10-K for the Fiscal Year Ended December 31, 2015 filed February 17, 2016 Form 10-Q for the Fiscal Quarter Ended September 30, 2016 filed November 3, 2016 Form 8-K filed November

December 16, 2016 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

8-K 1 d315789d8k.htm FORM 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): 12/14/2016 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other juris

December 16, 2016 EX-10.1

Third Amendment and Restatement Agreement with various lenders, dated December 14, 2016, which amends and restates the Company’s credit facility agreement dated December 14, 2011, as amended and restated on August 28, 2013 and November 6, 2015 (Incorporated by reference to Exhibit 10.1 of the Company’s Form 8-K on December 16, 2016).

EX-10.1 Exhibit 10.1 Conformed copy Dated 14 December 2016 INNOSPEC INC AND OTHERS BARCLAYS BANK PLC CREDIT SUISSE (SWITZERLAND) LTD THE ROYAL BANK OF SCOTLAND PLC LLOYDS BANK PLC WELLS FARGO BANK N.A. U.S. BANK NATIONAL ASSOCIATION (acting as Mandated Lead Arrangers) BARCLAYS BANK PLC as Document Co-ordinator and LLOYDS BANK PLC (acting as Agent and Security Agent) THIRD AMENDMENT AND RESTATEMENT

November 3, 2016 8-K

Innospec LIVE FILING (Current Report/Significant Event)

Innospec Inc. (Form: 8-K) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of Earliest Event Reported): November 2, 2016 Innospec Inc. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction (Commission (I

November 3, 2016 EX-99.1

INNOSPEC REPORTS THIRD QUARTER 2016 FINANCIAL RESULTS Business performance on track – one off items impact results; Margins remain strong Oilfield Services continues to progress; Huntsman acquisition on track Board maintains 10 percent dividend incre

EX-99.1 PRESS RELEASE INNOSPEC REPORTS THIRD QUARTER 2016 FINANCIAL RESULTS Business performance on track ? one off items impact results; Margins remain strong Oilfield Services continues to progress; Huntsman acquisition on track Board maintains 10 percent dividend increase EPS impacted by sales phased into Q4 and share-based compensation driven by 32 percent increase in share price Englewood, CO

November 3, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

October 27, 2016 EX-2.2

HUNTSMAN INVESTMENTS (NETHERLANDS) B.V. Merseyweg 10, 3197 KG Botlek Rotterdam, the Netherlands registered with the Dutch commercial register under number 24293054 (the “Seller”) TO: INNOSPEC INTERNATIONAL LTD (the “Purchaser”) (Company number: 03316

EX-2.2 Exhibit 2.2 HUNTSMAN INVESTMENTS (NETHERLANDS) B.V. Merseyweg 10, 3197 KG Botlek Rotterdam, the Netherlands registered with the Dutch commercial register under number 24293054 (the ?Seller?) TO: INNOSPEC INTERNATIONAL LTD (the ?Purchaser?) (Company number: 0331694) Innospec Manufacturing Park, Oil Sites Road, Ellesmere Port Cheshire, CH65 4EY, United Kingdom 25, October 2016 Dear Sirs Deed

October 27, 2016 8-K

Innospec 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2016 INNOSPEC INC. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission File N

October 27, 2016 EX-2.1

HUNTSMAN INVESTMENTS (NETHERLANDS) B.V. AS THE SELLER INNOSPEC INTERNATIONAL LTD AS THE PURCHASER SHARE AND ASSET PURCHASE AGREEMENT REGARDING THE EUROPEAN DIFFERENTIATED SURFACTANTS (“EDS”) BUSINESS Clause Page 1. Definitions 1 2. Sale and Purchase

EX-2.1 Exhibit 2.1 CLIFFORD CHANCE LLP ADVOCATEN SOLICITORS NOTARIS BELASTINGADVISEURS EXECUTION VERSION HUNTSMAN INVESTMENTS (NETHERLANDS) B.V. AS THE SELLER AND INNOSPEC INTERNATIONAL LTD AS THE PURCHASER SHARE AND ASSET PURCHASE AGREEMENT REGARDING THE EUROPEAN DIFFERENTIATED SURFACTANTS (?EDS?) BUSINESS CONTENTS Clause Page 1. Definitions 1 2. Sale and Purchase of EDS Shares and EDS Assets and

August 3, 2016 EX-99.1

INNOSPEC COMMITS TO ACQUIRE EUROPEAN PERSONAL CARE AND HOME CARE BUSINESS FROM HUNTSMAN Signficant expansion to Innospec’s Personal Care business with complementary products Brings substantial European market presence Creates much wider technology an

EX-99.1 Exhibit 99.1 INNOSPEC COMMITS TO ACQUIRE EUROPEAN PERSONAL CARE AND HOME CARE BUSINESS FROM HUNTSMAN Signficant expansion to Innospec?s Personal Care business with complementary products Brings substantial European market presence Creates much wider technology and asset base from which to serve customers globally Englewood, CO ? August 3, 2016 ? Innospec Inc. (NASDAQ: IOSP) today announced

August 3, 2016 8-K

Innospec 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2016 INNOSPEC INC. (Exact name of registrant as specified in its charter) Delaware 1-13879 98-0181725 (State or other jurisdiction of incorporation) (Commission File Numb

August 3, 2016 8-K

Innospec 8-K (Current Report/Significant Event)

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2016 INNOSPEC INC. (Exact name of registrant as specified in its charter) Commission File Number: 1-13879 Delaware 98-0181725 (State or other jurisdiction of incorporati

August 3, 2016 EX-99.1

INNOSPEC REPORTS SECOND QUARTER 2016 FINANCIAL RESULTS GAAP EPS of $1.18; Adjusted EPS of $1.03, 8% ahead of Q2 2015 ($0.95, excluding divestment) Strong EBITDA performance at 19% of sales; significant cash generation resulting in only $4.7 million o

EX-99.1 Exhibit 99.1 PRESS RELEASE INNOSPEC REPORTS SECOND QUARTER 2016 FINANCIAL RESULTS GAAP EPS of $1.18; Adjusted EPS of $1.03, 8% ahead of Q2 2015 ($0.95, excluding divestment) Strong EBITDA performance at 19% of sales; significant cash generation resulting in only $4.7 million of net debt All businesses performed well ? Oilfield Services improved over Q1 as anticipated Positioned very well f

August 3, 2016 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 23, 2016 EX-1.01

Innospec Inc. Conflict Minerals Report

EX-1.01 Exhibit 1.01 Innospec Inc. Conflict Minerals Report 1. INTRODUCTION This Conflict Minerals Report of Innospec Inc. (?Innospec,? the ?Company,? ?we? or ?our?) for the year ended December 31, 2015, is provided to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (?Rule?). The Rule was adopted by the Securities and Exchange Commission (?SEC?) to implement reporting and disclosu

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