TEG / Integrys Energy Group, Inc. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

इंटीग्रिज़ एनर्जी ग्रुप, इंक.
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LEI 549300J4ZRR1SZF4ES33
CIK 916863
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 Integrys Energy Group, 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।
June 6, 2016 15-15D

Integrys Energy Group INTEGRYS HOLDING FORM 15-15D

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 333-150311 333-63101 333-71990 333-71992 333-127889 Integrys Energy

October 9, 2015 15-12B

Integrys Energy Group 15-12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-11337 Integrys Holding, Inc. (Exact name of registrant as specified in its

September 28, 2015 25

Integrys Energy Group 25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 1-11337 Name of Issuer: Integrys Holding, Inc. Name of Exchange: New York Stock Exchange LLC (Exact name of Issuer as specified in its charter, and name of Exchange where security

August 5, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2015 [ ] TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2015 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 Registran

June 30, 2015 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on July 13, 2015, pursuant to the provisions of Rule 12d2-2 (a).

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-148906s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration No

June 29, 2015 POS AM

Integrys Energy Group POS AM

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 EX-4.1

[Signatures Follow]

Exhibit 4.1 This SIXTH SUPPLEMENTAL INDENTURE (this ?Supplemental Indenture?) is made as of the 29th day of June, 2015 by and between INTEGRYS HOLDING, INC. (F/K/A GET ACQUISITION CORP.), a corporation duly organized and existing under the laws of the State of Wisconsin (the ?Successor?), as successor to INTEGRYS ENERGY GROUP, INC. (F/K/A WPS RESOURCES CORPORATION), a corporation duly organized an

June 29, 2015 EX-10.2

ASSUMPTION AGREEMENT

EX-10.2 7 a15-148861ex10d2.htm EX-10.2 Exhibit 10.2 ASSUMPTION AGREEMENT This Agreement is made as of June 29, 2015, by Integrys Holding, Inc. (f/k/a GET Acquisition Corp.), a Wisconsin corporation (the “Company”), for the benefit of the banks, financial institutions, and other institutional lenders parties to the Credit Agreement referred to below (collectively, the “Lenders”), and JPMorgan Chase

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-1489013s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration N

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-1489010s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration N

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148942posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-124446 Registration No. 333-121971 Registration No. 333-104787 Registration No. 333-56918 Registration No. 333-88525 Registration No. 033-61991 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-3 Registration S

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148891posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-136911 Registration No. 333-44738 Registration No. 333-34401 Registration No. 033-52199 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-4 Registration Statement No. 333-136911 Post-Effective Amendment No. 1 t

June 29, 2015 EX-3.2

INTEGRYS HOLDING, INC. As Amended to June 18, 2015, Inclusive

Exhibit 3.2 BYLAWS of INTEGRYS HOLDING, INC. As Amended to June 18, 2015, Inclusive TABLE OF CONTENTS ARTICLE I. STOCKHOLDERS 1 1.01 Annual Meeting 1 1.02 Special Meetings 1 1.03 Place of Meetings; Postponements and Adjournments 1 1.04 Notices to Stockholders 1 (a) Required Notice 1 (b) Fundamental Transactions 2 1.05 Fixing of Record Date 2 1.06 Quorum and Voting Requirements 3 1.07 Conduct of Me

June 29, 2015 EX-10.1

ASSUMPTION AGREEMENT

Exhibit 10.1 ASSUMPTION AGREEMENT This Agreement is made as of June 29, 2015, by Integrys Holding, Inc. (f/k/a GET Acquisition Corp.), a Wisconsin corporation (the ?Company?), for the benefit of the banks, financial institutions, and other institutional lenders parties to the Credit Agreement referred to below (collectively, the ?Lenders?), and U.S. Bank National Association, as agent (the ?Admini

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148892posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-136911 Registration No. 333-44738 Registration No. 333-34401 Registration No. 033-52199 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-4 Registration Statement No. 333-136911 Post-Effective Amendment No. 1 t

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-148901s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration No

June 29, 2015 POS AM

Integrys Energy Group POS AM

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148893posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-136911 Registration No. 333-44738 Registration No. 333-34401 Registration No. 033-52199 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-4 Registration Statement No. 333-136911 Post-Effective Amendment No. 1 t

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148894posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-136911 Registration No. 333-44738 Registration No. 333-34401 Registration No. 033-52199 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-4 Registration Statement No. 333-136911 Post-Effective Amendment No. 1 t

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-148907s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration No

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 POS AM

Integrys Energy Group POS AM

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-148905s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration No

June 29, 2015 POS AM

Integrys Energy Group POS AM

POS AM 1 a15-148941posam.htm POS AM As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-124446 Registration No. 333-121971 Registration No. 333-104787 Registration No. 333-56918 Registration No. 333-88525 Registration No. 033-61991 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Post-Effective Amendment No. 1 to Form S-3 Registration S

June 29, 2015 POSASR

Integrys Energy Group POSASR

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 POSASR

Integrys Energy Group POSASR

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 EX-4.2

[Signatures Follow]

EX-4.2 5 a15-148861ex4d2.htm EX-4.2 Exhibit 4.2 This THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) is made as of the 29th day of June, 2015 by and between INTEGRYS HOLDING, INC. (F/K/A GET ACQUISITION CORP.), a corporation duly organized and existing under the laws of the State of Wisconsin (the “Successor”), as successor to INTEGRYS ENERGY GROUP, INC. (F/K/A WPS RESOURCES CORPORATI

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 POS AM

Integrys Energy Group POS AM

As filed with the Securities and Exchange Commission on June 29, 2015 Registration No.

June 29, 2015 8-K12B

Integrys Energy Group 8-K12B

8-K12B 1 a15-1488618k12b.htm 8-K12B 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 29, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 1-11337 INTEG

June 29, 2015 S-8 POS

Integrys Energy Group S-8 POS

S-8 POS 1 a15-148903s8pos.htm S-8 POS As filed with the Securities and Exchange Commission on June 29, 2015 Registration No. 333-195989 Registration No. 333-168540 Registration No. 333-150312 Registration No. 333-150311 Registration No. 333-140912 Registration No. 333-127890 Registration No. 333-127889 Registration No. 333-81134 Registration No. 333-71992 Registration No. 333-71990 Registration No

June 29, 2015 EX-3.1

ARTICLES OF INCORPORATION INTEGRYS HOLDING, INC. (Formerly GET Acquisition Corp.) As Amended June 18, 2015

Exhibit 3.1 ARTICLES OF INCORPORATION OF INTEGRYS HOLDING, INC. (Formerly GET Acquisition Corp.) As Amended June 18, 2015 ARTICLES OF INCORPORATION OF INTEGRYS HOLDING, INC. ARTICLE I The name of the corporation is INTEGRYS HOLDING, INC. ARTICLE II The corporation is organized for the purpose of engaging in any lawful activity within the purposes for which corporations may be organized under the W

June 26, 2015 425

WEC Energy Group 8-K (Prospectus)

425 1 a15-1469228k.htm 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 25, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN EN

June 24, 2015 425

WEC Energy Group 8-K (Prospectus)

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 24, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 23, 2015 11-K

Integrys Energy Group 11-K

2014 TEG ESOP SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 11-K [x] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-35050 A. Full title of the plan and the

June 22, 2015 425

WEC Energy Group 8-K (Prospectus)

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 22, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 22, 2015 8-K

Current Report

integrys8k 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: June 22, 2015 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 Integrys Energy Group, Inc. (A

June 19, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer?s Commission File No.

June 15, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 For Release: June 15, 2015 Contact: Steven P. Eschbach Vice President ? Investor Relations (312) 240-5408 Integrys Energy Group Declares Special Pro Rata Dividend in Preparation for Completing Merger with Wisconsin Energy Corporation C

June 12, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 12, 2015, Integrys Energy Group, Inc. posted the following announcement to the Integrys internal transaction website: Minnesota commission votes to approve Integrys acquisition The Minnesota Public Utilities Commission (MPUC) t

June 12, 2015 EX-99.1

-more-

Exhibit 99.1 From: Brian Manthey (news media) 414-221-4444 [email protected] Colleen F. Henderson, CFA (analysts) 414-221-2592 [email protected] June 12, 2015 Wisconsin Energy declares pro rata dividends in anticipation of Integrys acquisition MILWAUKEE ? The board of directors of Wisconsin Energy Corporation today declared pro rata dividends in anticipation of the

June 12, 2015 425

WEC Energy Group 8-K (Prospectus)

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 12, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 12, 2015 425

WEC Energy Group 8-K (Prospectus)

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 12, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 11, 2015 11-K

Integrys Energy Group 11-K

2014 TEG Deferred Compensation SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 11-K [x] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-11337 A. Full title of

June 3, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 3, 2015, Integrys Energy Group, Inc. (“Integrys”) posted the following Q&A sheet to the Integrys transaction website: Integrys Energy Group, Inc. Share Exchange & Misc. Shareholder Q&A SHARE EXCHANGE: Q1: I already own shares o

May 28, 2015 8-K

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

8-K 1 higginsresignation8k.htm 8-KHIGGINS 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: May 26, 2015 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337

May 27, 2015 SD

Integrys Energy Group FORM SD

SD 1 formsd2014.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Integrys Energy Group, Inc. (Exact Name of Registrant as Specified in Charter) Wisconsin 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File No.) (I.R.S. Employer Identification Number) 200 East Randolph Street, Chicago, Illinois 6

May 27, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

May 27, 2015 EX-1.01

Integrys Energy Group, Inc. Conflict Minerals Report for the Year Ended December 31, 2014

formsdexh1012014 Exhibit 1.01 Integrys Energy Group, Inc. Conflict Minerals Report for the Year Ended December 31, 2014 This conflict minerals report for the year ended December 31, 2014 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the ?Rule?). The Securities and Exchange Commission (?SEC?) adopted the Rule to implement reporting and disclosure requirements rel

May 22, 2015 425

WEC Energy Group 425 (Prospectus)

425 1 a15-123562425.htm 425 Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.: 001-09057 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Date: May 21, 2015 The below article was made available to employees of Wisconsin Energy Corporation on May 21, 2015. Wisconsin Commission issues final

May 22, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 22, 2015, Integrys Energy Group, Inc. (?Integrys?) posted the following Q&A sheet to Integrys? transaction website: Integrys Energy Group, Inc. Share Exchange & Misc. Shareholder Q&A TERMINATION OF STOCK INVESTMENT PLAN: Q1: Whe

May 22, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On the evening of May 21, 2015, Integrys Energy Group, Inc. (“Integrys”) posted the following Q&A sheet to the Integrys internal transaction website: Questions & Answers about Wisconsin Energy Corporation’s Acquisition of Integrys Ener

May 21, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 21, 2015, Integrys Energy Group, Inc. issued the following press release: Integrys Energy Group, Inc. For immediate release: For more information, contact: May 21, 2015 Media Hotline (800) 977-2250 Public Service Commission of W

May 20, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

May 19, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 19, 2015, Integrys Energy Group, Inc. mailed the following notices to certain participants in its employee benefit plans: Save. Plan. Enjoy. Wells Fargo Important fund change is coming soon to the Integrys Energy Group 401(k) Pl

May 15, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 15, 2015, Integrys Energy Group, Inc. ("Integrys") posted the following information on Integrys's internal transaction website: Regulatory Filings 5/15/15: The Illinois Commerce Commission's (ICC) administrative law judge (ALJ)

May 15, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 15, 2015, Integrys Energy Group, Inc. posted the following May Company Update presentation to its website. Company Update ? May 2015 May 2015 COMPANY PRESENTATION Connect With Us:@TEGinvestors on Company Update ? May 2015 Index

May 15, 2015 425

WEC Energy Group 425 (Prospectus)

425 1 a15-117841425.htm 425 Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.: 001-09057 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Date: May 15, 2015 The below was made available to employees of Wisconsin Energy Corporation on May 15, 2015. Illinois ALJ issues proposed order with c

May 14, 2015 424B3

Filed Pursuant to Rule 424(b)(3) Registration Statement No. 333-186988 Integrys Energy Group, Inc. Stock Investment Plan Common Stock

stockinvestmentplanprospectus Filed Pursuant to Rule 424(b)(3) Registration Statement No.

May 14, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 14, 2015, Integrys Energy Group, Inc. (?Integrys?) posted the following Q&A sheet on Integrys? website: Integrys Energy Group, Inc. Termination of Stock Investment Plan Q&A Q1: When the merger closes, what will happen to the sha

May 12, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On May 12, 2015, Integrys Energy Group, Inc. ("Integrys") distributed the following letter to certain employee participants in the Integrys Stock Investment Plan: Integrys Energy Group, Inc. 200 East Randolph Street Chicago, IL 60601 w

May 8, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

May 6, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer?s Commission File No.

May 5, 2015 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2015 [ ] TRANSITION REPORT PURSUAN

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2015 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 Registra

May 5, 2015 EX-10

[J.P. Morgan letterhead]

[J.P. Morgan letterhead] Date: 03-Apr-2015 TO: INTEGRYS ENERGY GROUP, INC. ATTN: TYLER LENZ Re: INTEGRYS ENERGY GROUP 465MM 05/2014, REVOLVER Description: Unscheduled Commitment Decrease BORROWER: INTEGRYS ENERGY GROUP, INC. DEAL NAME: INTEGRYS ENERGY GROUP 465MM 05/2014 REVOLVER COMMITMENT DECREASE Effective 02-Apr-2015, the commitment for INTEGRYS ENERGY GROUP, INC will be reduced from USD 465,0

May 5, 2015 EX-99.1

Integrys Energy Group, Inc. First Quarter 2015 Earnings Released May 5, 2015

2015 Q1 Exhibit 99.1 Integrys Energy Group, Inc. First Quarter 2015 Earnings Released May 5, 2015 Contents Pages News Release 1-3 Condensed Consolidated Statements of Income 4 Condensed Consolidated Statements of Comprehensive Income 5 Condensed Consolidated Balance Sheets 6 Condensed Consolidated Statements of Cash Flows 7 Diluted Earnings Per Share ? Adjusted and Weather Impacts 8 Non-GAAP Finan

May 5, 2015 EX-99.1

EX-99.1

Integrys Energy Group, Inc. First Quarter 2015 Earnings Released May 5, 2015 Contents Pages News Release 1-3 Condensed Consolidated Statements of Income 4 Condensed Consolidated Statements of Comprehensive Income 5 Condensed Consolidated Balance Sheets 6 Condensed Consolidated Statements of Cash Flows 7 Diluted Earnings Per Share – Adjusted and Weather Impacts 8 Non-GAAP Financial Information Repo

May 5, 2015 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: May 5, 2015 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wisconsin Co

May 1, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On the evening of April 30, 2015, Integrys Energy Group, Inc. (?Integrys?) posted the following information on Integrys?s internal transaction website: Additional Information and Where to Find It In connection with the proposed merger

April 30, 2015 425

WEC Energy Group 8-K (Prospectus)

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 30, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-139152

April 28, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On April 28, 2015, Integrys Energy Group, Inc. (“Integrys”) posted a Q&A document on Integrys's intranet site that contained information on Integrys's transaction with Wisconsin Energy Corporation, as follows: Questions & Answers about

April 24, 2015 425

Integrys Energy Group (Prospectus)

On the evening of April 23, 2015, Integrys Energy Group, Inc. issued the following press release: Integrys Energy Group, Inc.. For immediate release: For more information, contact: April 23, 2015 Media Hotline (800) 977-2250 Michigan PSC Approves Wisconsin Energy Acquisition of Integrys Energy Group Chicago, IL ? The Michigan Public Service Commission (MPSC) today approved the acquisition of Integ

April 23, 2015 425

WEC Energy Group 8-K (Prospectus)

WEC 04.23.2015 425 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 23, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CO

April 8, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On April 8, 2015, Integrys Energy Group, Inc. (?Integrys?) posted the following information on Integrys?s internal transaction website: PowerNet > Corporate Information & News > Regulatory Filings 4/7/15: The Federal Energy Regulatory

April 7, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer?s Commission File No.

April 2, 2015 425

Integrys Energy Group (Prospectus)

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On April 2, 2015, Integrys Energy Group, Inc. posted the following April Company Update presentation to its website. Company Update ? April 2015 April 2015 COMPANY PRESENTATION Connect With Us:@TEGinvestors on Company Update ? April 20

March 31, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

March 31, 2015 425

Integrys Energy Group TRANSACTION UPDATE (Prospectus)

form425.htm Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On March 31, 2015, Integrys Energy Group, Inc. provided the following update to its employees through its employee website: March 31, 2015 Regulatory approval update Michigan settlement revised We continue to make progress

March 30, 2015 425

WEC Energy Group 425 (Prospectus)

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

March 13, 2015 425

WEC Energy Group 8-K (Prospectus)

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, 2015 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-139152

March 13, 2015 425

Integrys Energy Group (Prospectus)

form425.htm Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On March 13, 2015, Integrys Energy Group, Inc. (the ?Company?) notified its employees of an update on Wisconsin Energy Group?s settlement plans in Michigan through email and on the Company?s internal employee website. The c

March 2, 2015 EX-10.25

US Bank Syndicated Loans

Exhibit 10.25 [US Bank letterhead] US Bank Syndicated Loans Date: 14-Nov-2014 TO: INTEGRYS ENERGY GROUP INC ATTN: TYLER LENZ Fax: 920-430-6362 Re: INTEGRYS ENERGY GROUP JUN 2012 $635MM, $635MM REVOLVER Description: Unscheduled Commitment Decrease BORROWER: INTEGRYS ENERGY GROUP INC DEAL NAME: INTEGRYS ENERGY GROUP JUNE 2012 $635MM COMMITMENT DECREASE Effective 14-Nov-2014, the commitment for INTEG

March 2, 2015 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY WHEREAS, INTEGRYS ENERGY GROUP, INC., a Wisconsin corporation, will file on or before the due date of March 2, 2015 with the Securities and Exchange Commission, under the provisions of the Securities Exchange Act of 1934, an annual report on Form 10-K, and WHEREAS, each of the undersigned is a Director of Integrys Energy Group, Inc.; NOW, THEREFORE, each of the undersi

March 2, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On March 2, 2015, Integrys Energy Group, Inc. provided the following update to its employees through its employee website: March 2, 2015 Regulatory approval update We’re making good progress on all of the approvals, and we still antici

March 2, 2015 10-K

PDF

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-K (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 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 Registrant; State of

March 2, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

March 2, 2015 EX-99

December 31,

Exhibit 99 AMERICAN TRANSMISSION COMPANY, LLC Financial Statements as of December 31, 2014 and 2013 and for the Years Ended December 31, 2014, 2013 and 2012 and Independent Auditors’ Report Exhibit 99 American Transmission Company, LLC Table of Contents Independent Auditors’ Report………………………………….

March 2, 2015 EX-21

Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2014

Exhibit 21 Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2014 INTEGRYS ENERGY GROUP, INC. (1) (2) Wisconsin Public Service Corporation (2) WPS Leasing, Inc. (2) Wisconsin Valley Improvement Company (27.1% ownership) (2) Wisconsin River Power Company (50% ownership) (2) WPS Investments, LLC (approximately 10.98% ownership) (2) American Transmission Company LLC (approximate

March 2, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

March 2, 2015 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 (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2014 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 Registrant; State of

February 27, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - FORM 425

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On February 27, 2015, Integrys Energy Group posted the following February Company Update presentation to its website. Company Update – February 2015 integrys integrys COMPANY PRESENTATION February 2015 TEG LISTED NYSE Connect With Us:

February 25, 2015 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: February 25, 2015 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wiscon

February 25, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

February 25, 2015 EX-99.1

Integrys Energy Group, Inc. Fourth Quarter 2014 Earnings Released February 25, 2015

Integrys Energy Group, Inc. Fourth Quarter 2014 Earnings Released February 25, 2015 Contents Pages News Release 1-3 Consolidated Statements of Income 4 Consolidated Statements of Comprehensive Income 5 Consolidated Balance Sheets 6 Consolidated Statements of Cash Flows 7 Diluted Earnings Per Share – Adjusted and Weather Impacts 8 Non-GAAP Financial Information Reported by Segment 9-12 Key Variance

February 24, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

February 18, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

425 1 a15-49021425.htm 425 Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.: 001-09057 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Date: February 18, 2015 Below is an article made available to employees of Wisconsin Energy Corporation on February 18, 2015. Mines to remain full-requi

February 12, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - FORM 425

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On February 12, 2015, Jodi Caro, Vice President, General Counsel and Secretary of Integrys Energy Group, Inc. (“Integrys”), distributed the following communication to the management of Integrys. U.S. antitrust laws are strict regarding

February 12, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

February 12, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

February 10, 2015 SC 13G/A

TEG / Integrys Energy Group, Inc. / VANGUARD GROUP INC Passive Investment

SC 13G/A 1 integrysenergygroup.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Integrys Energy Group Inc Title of Class of Securities: Common Stock CUSIP Number: 45822P105 Date of Event Which Requires Filing of this Statement: December 31, 2014 Check the appropriate box to designate the rule p

February 6, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

January 30, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On January 30, 2015, Integrys Energry Group, Inc. provided the following communication to its employees through the employee transaction site PowerNet: News about Wisconsin Energy Corporation’s acquisition of Integrys Transaction Updat

January 30, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - FORM 425

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Company Update – January 2015 integrys COMPANY PRESENTATION January 2015 TEG LISTED NYSE Connect With Us: @TEGinvestors on Twitter Company Update – January 2015 Index 3. Condensed Commentary on Forward-Looking Statements 4. Wisconsin E

January 30, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

January 13, 2015 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 The following documents were distributed on January 13, 2015 by a subsidiary of Integrys Energy Group, Inc.: (1) an email from the president of Wisconsin Public Service Corp. (“WPS”) to employees at the local WPS site affected, (2) an

January 13, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

January 13, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 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 12, 2015 Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391

January 8, 2015 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

December 8, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

November 24, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-6 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 333-198096 On November 24, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a social media communication containing information regarding I

November 21, 2014 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 tegspecialmeeting8k.htm 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: November 21, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INT

November 21, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On November 21, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a social media communication containing information regard

November 18, 2014 8-K

Entry into a Material Definitive Agreement

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: November 14, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wiscon

November 12, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 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 12, 2014 Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 001-09057 39-1391525 WISCONSIN ENERGY CORPORA

November 12, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - 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 12, 2014 Integrys Energy Group, Inc. (A Wisconsin Corporation) Illinois 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employ

November 12, 2014 8-K

Other Events

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 12, 2014 Integrys Energy Group, Inc. (A Wisconsin Corporation) Illinois 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employ

November 12, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - EMPLOYEE COMMUNICATION

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On November 11, 2014, Integrys Energy Group, Inc. (“Integrys”) posted on Integrys’s intranet an employee communication containing inf

November 10, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

November 7, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - 425

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On November 7, 2014, Integrys Energy Group, Inc. ("Integrys") distributed a company update presentation containing information on Int

November 6, 2014 EX-99.2

Unaudited Pro Forma Financial Information

EX-99.2 3 exhibit992proformas.htm EXHIBIT Exhibit 99.2 Unaudited Pro Forma Financial Information On November 1, 2014, Integrys Energy Group, Inc. sold the retail energy business of its subsidiary, Integrys Energy Services, Inc. to a subsidiary of Exelon Generation Company, LLC for $319.2 million. The purchase price is subject to adjustments related to working capital. The following unaudited pro f

November 6, 2014 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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: November 1, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wiscons

November 6, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2014 [ ] TRANSITION REPORT PUR

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2014 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 Regi

November 6, 2014 EX-2

Stock Purchase Agreement, dated as of July 29, 2014, between Integrys Energy Group, Inc. and Exelon Generation Company, LLC, as amended on October 31, 2014. (Exhibit 2 under File No. 1-11337, Integrys Energy Group's 09/30/14 Form 10-Q.)

Exhibit 2 Execution Version STOCK PURCHASE AGREEMENT dated as of July 29, 2014 by and between Exelon Generation Company, LLC, as Buyer and Integrys Energy Group, Inc.

November 6, 2014 EX-99.1

CONSTELLATION COMPLETES ACQUISITION OF INTEGRYS ENERGY SERVICES Purchase adds scale to Constellation’s retail business in competitive markets

Exhibit 99.1 Contact: Judy Rader Constellation Communications 410-470-9700 Francis O. Idehen, Jr. Exelon Investor Relations 312-394-2345 Steven P. Eschbach, CFA Integrys Energy Group, Inc. Investor Relations 312-228-5408 Media Hotline: 800-977-2250 FOR IMMEDIATE RELEASE CONSTELLATION COMPLETES ACQUISITION OF INTEGRYS ENERGY SERVICES Purchase adds scale to Constellation’s retail business in competi

November 5, 2014 EX-99.1

Integrys Energy Group, Inc. Third Quarter 2014 Earnings Released November 5, 2014

Integrys Energy Group, Inc. Third Quarter 2014 Earnings Released November 5, 2014 Contents Pages News Release 1-4 Condensed Consolidated Statements of Income 5 Condensed Consolidated Statements of Comprehensive Income 6 Condensed Consolidated Balance Sheets 7 Condensed Consolidated Statements of Cash Flows 8 Diluted Earnings Per Share – Adjusted and Weather Impacts 9 Non-GAAP Financial Information

November 5, 2014 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: November 5, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wiscons

October 30, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

October 23, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

October 21, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - SOCIAL MEDIA POSTING

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On October 21, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a social media communication on its Twitter account as foll

October 21, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - 2014-10 POWERNET ARTICLE

425 1 form425.htm 2014-10 POWERNET ARTICLE Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On October 21, 2014, Integrys Energy Group posted the following notice on its employee int

October 15, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - TRANSACTION WEBPAGE

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On the evening of October 14, 2014, Integrys Energy Group, Inc. (“Integrys”) posted the following information regarding proxy materia

October 14, 2014 DEFM14A

TEG / Integrys Energy Group, Inc. DEFM14A - - DEFM14A

DEFM14A 1 a2221708zdefm14a.htm DEFM14A Use these links to rapidly review the document TABLE OF CONTENTS TABLE OF CONTENTS 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 (Amendment No. ) Filed by the Registrant ý Filed by a Party other than the Registrant o Check

October 6, 2014 EX-99.1

# # #

EX-99.1 2 ex99-1.htm PRESS RELEASE Exhibit 99.1 Wisconsin Energy, Integrys Energy Group schedule shareholder meetings, announce effectiveness of registration statement MILWAUKEE and CHICAGO – Oct. 6, 2014 - Wisconsin Energy (NYSE: WEC) and Integrys Energy Group (NYSE: TEG) have announced that the registration statement on Form S-4 filed by Wisconsin Energy with the U.S. Securities and Exchange Com

October 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - SOCIAL MEDIA POSTING

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Integrys Energy Group, Inc. made the following social media posting on Twitter on October 6, 2014: @TEGinvestors $WEC $TEG schedule s

October 6, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 8-K

425 1 a14-1845158k.htm 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 6, 2014 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 39-1391525

October 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - 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: October 6, 2014 (Date of earliest event reported) Integrys Energy Group, Inc. (A Wisconsin Corporation) Illinois 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer

October 6, 2014 8-K

Financial Statements and Exhibits, Other Events

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: October 6, 2014 (Date of earliest event reported) Integrys Energy Group, Inc. (A Wisconsin Corporation) Illinois 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer

October 6, 2014 EX-99.1

# # #

Exhibit 99.1 Wisconsin Energy, Integrys Energy Group schedule shareholder meetings, announce effectiveness of registration statement MILWAUKEE and CHICAGO — Oct. 6, 2014 - Wisconsin Energy (NYSE: WEC) and Integrys Energy Group (NYSE: TEG) have announced that the registration statement on Form S-4 filed by Wisconsin Energy with the U.S. Securities and Exchange Commission on Aug. 13, 2014, and as su

October 6, 2014 EX-99.1

# # #

Exhibit 99.1 Wisconsin Energy, Integrys Energy Group schedule shareholder meetings, announce effectiveness of registration statement MILWAUKEE and CHICAGO – Oct. 6, 2014 - Wisconsin Energy (NYSE: WEC) and Integrys Energy Group (NYSE: TEG) have announced that the registration statement on Form S-4 filed by Wisconsin Energy with the U.S. Securities and Exchange Commission on Aug. 13, 2014, and as su

September 23, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - PRESENTATION

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On September 23, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a town hall presentation containing information on Integr

September 23, 2014 CORRESP

TEG / Integrys Energy Group, Inc. CORRESP - -

[Foley & Lardner letterhead] September 23, 2014 ATTORNEYS AT LAW 777 EAST WISCONSIN AVENUE MILWAUKEE, WI 53202-5306 414.

September 18, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

September 17, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

September 15, 2014 CORRESP

TEG / Integrys Energy Group, Inc. CORRESP - -

[Foley & Lardner letterhead] September 15, 2014 ATTORNEYS AT LAW 777 EAST WISCONSIN AVENUE MILWAUKEE, WI 53202-5306 414.

September 9, 2014 8-K

Other Events

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: September 8, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wiscon

September 3, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

September 3, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

September 2, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On September 2, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a retiree newsletter that contained information regarding

August 28, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

August 27, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On August 27, 2014, Integrys Energy Group, Inc. (“Integrys”) posted a Q&A document on Integrys’s intranet site that contained informa

August 22, 2014 CORRESP

TEG / Integrys Energy Group, Inc. CORRESP - -

CORRESP 1 filename1.htm [Foley & Lardner letterhead] August 22, 2014 ATTORNEYS AT LAW 777 EAST WISCONSIN AVENUE MILWAUKEE, WI 53202-5306 414.271.2400 TEL 414.297.4900 FAX foley.com WRITER'S DIRECT LINE 414.297.5668 [email protected] EMAIL CLIENT/MATTER NUMBER 092233-0112 Via EDGAR and Federal Express Mr. William H. Thompson Accounting Branch Chief Division of Corporation Finance United States Securi

August 15, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On August 15, 2014, Integrys Energy Group, Inc. made the following presentation to its investors at a meeting in Kohler, Wisconsin ho

August 14, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

August 13, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On August 13, 2014, Integrys Energy Group, Inc. (“Integrys”) posted the following information on Integrys’s intranet site for its emp

August 12, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

August 12, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

August 7, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On August 7, 2014, Integrys Energy Group, Inc. (“Integrys”) provided links on Integrys’s transaction webpage to information concernin

August 7, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Connect with Us: @TEGinvestors on Second Quarter 2014 August 7, 2014 Second Quarter 2014 Earnings Conference Call TEG LISTED NYSE int

August 7, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2014 [ ] TRANSITION REPORT PURSUANT

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2014 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 Registran

August 7, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

425 1 form425.htm Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Integrys Energy Group, Inc. Second Quarter 2014 Earnings Conference Call Transcript Moderator: Charles A. Schrock A

August 6, 2014 8-K

Current Report

begin 644 teg2q2014earnings.pdf M)5!$1BTQ+C4*,2`P(&]B:@H\/"]4>7!E("]086=E"!;,"`P(#8Q,BXP,"`W.3(N,#!="B]2 M97-O=7)C97,@,B`P(%(*+U)O=&%T92`P"B]#;VYT96YT2!'2!687)I86YC97,@:6X@3F]N M+4=!05`@061J=7-T960@16%R;FEN9W,@EB!">2!396=M96YT*2!4:B!%5"!1 M"D)4("]&,R`Q,BXP,"!49B!%5`IQ(#`@,"`P(')G($)4(#4P-2XY-2`Q-34N M.#4@5&0@*#$T+3$U*2!4:B!%5"!1"D)4("]&,R`Q,BXP,"!49B!%5`IQ(#`@ M,"`P(')G($)4(#"!;,"`P M(#8Q,BXP,"`W.

August 6, 2014 EX-99.1

Integrys Energy Group, Inc. Second Quarter 2014 Earnings Released August 6, 2014

EX-99.1 2 teg2q2014exhibit991.htm EXHIBIT Integrys Energy Group, Inc. Second Quarter 2014 Earnings Released August 6, 2014 Contents Pages News Release 1-4 Condensed Consolidated Statements of Income 5 Condensed Consolidated Statements of Comprehensive Income 6 Condensed Consolidated Balance Sheets 7 Condensed Consolidated Statements of Cash Flows 8 Diluted Earnings Per Share – Adjusted and Weather

August 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 WEC-TEG Commission Filing Summary August 6, 2014 Introduction Wisconsin Energy Corporation and Integrys Energy Group today filed appl

August 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 To: TEG All Integrys Employees From: Corporate Communications Date: Wednesday, August 6, 2014 Time: 4:30 p.m. (Central) Subject: FYI:

August 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 To: TEG Leaders (Utilities & IBS Formal); ITF Leaders (Formal); TEGE Leaders (w/Direct Reports) From: Corporate Communications Date:

August 6, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On August 6, 2014, Integrys Energy Group, Inc. (“Integrys”) posted a Q&A document on Integrys's intranet site that contained informat

August 6, 2014 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 teg2q20148-k.htm 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: August 6, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENER

August 4, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

August 1, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

July 31, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

July 31, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

July 30, 2014 EX-99.1

EXELON’S CONSTELLATION BUSINESS ACQUIRING INTEGRYS ENERGY SERVICES TO GROW COMPETITIVE RETAIL ENERGY SUPPLY BUSINESS Purchase expands Constellation’s presence in 22 states and the District of Columbia

EX-99.1 2 exh991.htm EXHIBIT 99.1 [Integrys letterhead] [Exelon letterhead] Contact: Paul Adams Exelon Communications 410-470-4167 Ravi Ganti Exelon Investor Relations 312-394-2345 Steven P. Eschbach, CFA Integrys Energy Group, Inc. Investor Relations 312-228-5408 Media Hotline: 800-977-2250 FOR IMMEDIATE RELEASE EXELON’S CONSTELLATION BUSINESS ACQUIRING INTEGRYS ENERGY SERVICES TO GROW COMPETITIV

July 30, 2014 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

8-K 1 a8k.htm 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 30, 2014 (July 29, 2014) Integrys Energy Group, Inc. (A Wisconsin Corporation) (Exact name of registrant as specified in charter) Wisconsin 1-11337 39-1775292 (

July 29, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Commencing on July 29, 2014, certain of the regulated subsidiaries of Integrys Energy Group, Inc. (“Integrys”) will distribute custom

July 16, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On July 16, 2014, Daniel J. Verbanac, President of Integrys Energy Services, Inc. (“IES”), delivered a presentation to certain Wiscon

July 15, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On July 15, 2014, Integrys Energy Group, Inc. (“Integrys”) provided the following Q&A sheet to Integrys employees on Integrys’ intran

July 7, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

July 3, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus -

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On July 3, 2014, Integrys Energy Group, Inc. (“Integrys”) provided the following Q&A sheet to Integrys employees on Integrys’ intrane

July 1, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - KLAPPA LETTER TO EMPLOYEES

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On July 1, 2014, the chief executive officer of Integrys Energy Group, Inc. (“Integrys”) sent the following email to the Integrys emp

July 1, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

June 27, 2014 11-K

TEG / Integrys Energy Group, Inc. 11-K - - 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 11-K [x] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-11337 A. Full title of the plan and the address of th

June 27, 2014 425

WEC / WEC Energy Group, Inc. 425 - Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

June 27, 2014 425

TEG / Integrys Energy Group, Inc. 425 - Merger Prospectus - WEC-TEG TRANSACTION UPDATE FOR LEADERS

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 27, 2014, Integrys Energy Group, Inc. (“Integrys”) sent an email to the leadership group of Integrys relating to the acquisit

June 25, 2014 EX-10.2

KEY EXECUTIVE EMPLOYMENT AND SEVERANCE AGREEMENT By and Between INTEGRYS ENERGY GROUP, INC. Phillip M. Mikulsky As Amended and Restated Effective June 21, 2014 TABLE OF CONTENTS

Exhibit 10.2 KEY EXECUTIVE EMPLOYMENT AND SEVERANCE AGREEMENT By and Between INTEGRYS ENERGY GROUP, INC. And Phillip M. Mikulsky As Amended and Restated Effective June 21, 2014 TABLE OF CONTENTS Section Page 1. Definitions 2 (a) Act 2 (b) Affiliate and Associate 2 (c) Beneficial Owner 2 (d) Cause 3 (e) Change in Control of the Company 3 (f) Code 4 (g) Continuing Director 4 (h) Covered Termination

June 25, 2014 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 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): June 25, 2014 (June 21, 2014) Integrys Energy Group, Inc. (A Wisconsin Corporation) (Exact name of registrant as specified in charter) Illinois 1-11337 39-1775292 (State or Other Juri

June 25, 2014 425

Merger Prospectus - 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 25, 2014 Commission Registrant; State of Incorporation IRS Employer File Number Address; and Telephone Number Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 25, 2014 EX-99.1

June 2014 Wisconsin Energy To Acquire Integrys Energy Group

EX-99.1 2 a14-1588312ex99d1.htm EX-99.1 Exhibit 99.1 June 2014 Wisconsin Energy To Acquire Integrys Energy Group Cautionary Statement Regarding Forward-Looking Information This presentation contains certain forward-looking statements with respect to the financial condition, results of operations and business of Wisconsin Energy and Integrys and the combined businesses of Integrys and Wisconsin Ene

June 25, 2014 425

Merger Prospectus - ANNOUNCEMENT OF WEC'S INTENT TO PURCHASE

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On the evening of June 24, 2014, an email was sent to employees of Trillium CNG, a business unit of Integrys Energy Group, Inc., rega

June 25, 2014 11-K

- 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 11-K [x] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 33-35050 A. Full title of the plan and the address of the

June 25, 2014 EX-10.1

INTEGRYS ENERGY GROUP, INC. TRANSACTION RETENTION PLAN

EX-10.1 2 ex10-1.htm INTEGRYS ENERGY GROUP, INC. TRANSACTION RETENTION PLAN Exhibit 10.1 INTEGRYS ENERGY GROUP, INC. TRANSACTION RETENTION PLAN 1. Purpose. The Plan has been established by the Company for the purpose of encouraging key employees to remain in the employ of the Company in connection with the transaction between the Company and Parent. 2. Definitions. For purposes of the Plan, the fo

June 24, 2014 425

Merger Prospectus - RETIREE LETTER

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 24, 2014, Integrys Energy Group, Inc. (“Integrys”) sent a letter to Integrys retirees describing the proposed acquisition of

June 24, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

June 24, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

June 24, 2014 425

Merger Prospectus - TRANSCRIPT

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 THOMSON REUTERS STREETEVENTS EDITED TRANSCRIPT WEC - Wisconsin Energy Corp Conference Call to discuss the definitive agreement to acq

June 23, 2014 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events - 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): June 23, 2014 (June 22, 2014) Integrys Energy Group, Inc. (A Wisconsin Corporation) (Exact name of registrant as specified in charter) Illinois 1-11337 39-1775292 (State or Other Juri

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

June 23, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 INTEGRYS ENERGY GROUP, INC. WISCONSIN ENERGY CORPORATION

Exhibit 2.1 EXECUTION VERSION AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 Between INTEGRYS ENERGY GROUP, INC. And WISCONSIN ENERGY CORPORATION TABLE OF CONTENTS Page ARTICLE I The Mergers SECTION 1.01 The Initial Merger 2 SECTION 1.02 Closing 2 SECTION 1.03 Effective Time 2 SECTION 1.04 Effects 3 SECTION 1.05 Articles of Incorporation and By-Laws 3 SECTION 1.06 Directors and Officers of

June 23, 2014 425

Merger Prospectus - JPEG SCREENSHOT

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) posted a description on its internal intranet site of the proposed acquisi

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer:Wisconsin Energy Corporation Filer's Commission File No.

June 23, 2014 425

Merger Prospectus - PROJECT ELEMENT CONFERENCE CALL

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Wisconsin Energy Corporation and Integrys Energy Group, Inc. will host a conference call at 10:30 a.m. Central time

June 23, 2014 425

Merger Prospectus - SENIOR LEADER TALKING POINTS

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed the following talking points about the proposed acquisition of

June 23, 2014 425

Merger Prospectus - 425

425 1 a14-158838425.htm 425 Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.: 001-09057 Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Date: June 23, 2014 The following is the transcript for a vid

June 23, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 INTEGRYS ENERGY GROUP, INC. WISCONSIN ENERGY CORPORATION

EX-2.1 2 ex2-1.htm AGREEMENT AND PLAN OF MERGER Exhibit 2.1 AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 Between INTEGRYS ENERGY GROUP, INC. And WISCONSIN ENERGY CORPORATION TABLE OF CONTENTS Page ARTICLE I The Mergers SECTION 1.01 The Initial Merger 2 SECTION 1.02 Closing 2 SECTION 1.03 Effective Time 2 SECTION 1.04 Effects 3 SECTION 1.05 Articles of Incorporation and By-Laws 3 SECTION

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

June 23, 2014 425

Merger Prospectus - FACT SHEET

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed a fact sheet about the proposed acquisition of Integrys by Wis

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

June 23, 2014 EX-99.1

# # #

Exhibit 99.1 Wisconsin Energy to acquire Integrys Energy Group for $9.1 billion in cash, stock and assumed debt - creating a leading Midwest electric and gas utility § Larger, more diverse regulated utility company with the financial strength and technical depth to meet customers’ future energy needs; creates 8th largest natural gas distribution company in America § Companies reiterate commitment

June 23, 2014 425

Merger Prospectus - CUSTOMER UPDATE

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) sent a letter to its customers describing the proposed acquisition of Inte

June 23, 2014 425

Merger Prospectus - 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): June 23, 2014 (June 22, 2014) Integrys Energy Group, Inc. (A Wisconsin Corporation) (Exact name of registrant as specified in charter) Illinois 1-11337 39-1775292 (State or Other Juri

June 23, 2014 425

Merger Prospectus - 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 22, 2014 Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 001-09057 39-1391525 WISCONSIN ENERGY CORPORATION

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer's Commission File No.

June 23, 2014 EX-2.1

AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 INTEGRYS ENERGY GROUP, INC. WISCONSIN ENERGY CORPORATION

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER Dated as of June 22, 2014 Between INTEGRYS ENERGY GROUP, INC. And WISCONSIN ENERGY CORPORATION TABLE OF CONTENTS Page ARTICLE I The Mergers SECTION 1.01 The Initial Merger 2 SECTION 1.02 Closing 2 SECTION 1.03 Effective Time 2 SECTION 1.04 Effects 3 SECTION 1.05 Articles of Incorporation and By-Laws 3 SECTION 1.06 Directors and Officers of Surviving Corpora

June 23, 2014 425

Merger Prospectus - FIELD EMPLOYEE LEAVE BEHIND

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Integrys Energy Group, Inc. (“Integrys”) distributed the following communication to field employees and labor unions regarding the pr

June 23, 2014 EX-99.1

# # #

Exhibit 99.1 Wisconsin Energy to acquire Integrys Energy Group for $9.1 billion in cash, stock and assumed debt - creating a leading Midwest electric and gas utility § Larger, more diverse regulated utility company with the financial strength and technical depth to meet customers’ future energy needs; creates 8th largest natural gas distribution company in America § Companies reiterate commitment

June 23, 2014 425

Merger Prospectus - 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 23, 2014 Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 001-09057 WISCONSIN ENERGY CORPORATION 39-1391525

June 23, 2014 425

Merger Prospectus - EMPLOYEE FAQ -- FINAL

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) provided Employee Frequently Asked Questions about the proposed acquisitio

June 23, 2014 425

Merger Prospectus - EMPLOYEE EMAIL -- FINAL

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) sent the following communication to its employees concerning the proposed

June 23, 2014 425

Merger Prospectus - WEBSITE PREVIEW

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) posted a description on its website of the proposed acquisition of Integry

June 23, 2014 EX-99.1

Wisconsin Energy Media Contact Wisconsin Energy Investor Contact Rick White / Barry McNulty 414-221-4444 Colleen Henderson, CFA 414-221-2592 Integrys Media Contact Integrys Investor Contact Kathy Hartman 800-977-2250 Steven P. Eschbach, CFA 312-228-5

Exhibit 99.1 Wisconsin Energy to acquire Integrys Energy Group for $9.1 billion in cash, stock and assumed debt - creating a leading Midwest electric and gas utility · Larger, more diverse regulated utility company with the financial strength and technical depth to meet customers’ future energy needs; creates 8th largest natural gas distribution company in America · Companies reiterate commitment

June 23, 2014 425

Merger Prospectus - SOCIAL MEDIA UPDATES

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) posted messages via social media describing the proposed acquisition of In

June 23, 2014 425

Merger Prospectus - CUSTOMER SERVICE TALKING POINTS

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) distributed the following talking points about the proposed acquisition of

June 23, 2014 425

Merger Prospectus - EMPLOYEE PRESENTATION -- FINAL

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 On June 23, 2014, Integrys Energy Group, Inc. (“Integrys”) management hosted meetings to discuss the proposed acquisition of Integrys

June 23, 2014 425

Merger Prospectus - ANNOUNCEMENT

Filed by Integrys Energy Group, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Integrys Energy Group, Inc. Commission File No.: 1-11337 Integrys to Join Forces with WEC 6/23/14: This morning, we announced we are joining forces with Wisconsin Energy Corporation to creat

June 23, 2014 EX-99.1

June 2014 Wisconsin Energy To Acquire Integrys Energy Group

Exhibit 99.1 June 2014 Wisconsin Energy To Acquire Integrys Energy Group Cautionary Statement Regarding Forward-Looking Information This presentation contains certain forward-looking statements with respect to the financial condition, results of operations and business of Wisconsin Energy and Integrys and the combined businesses of Integrys and Wisconsin Energy and certain plans and objectives of

June 23, 2014 425

Merger Prospectus - 425

Filed pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed under Rule 14a-12 under the Securities Exchange Act of 1934, as amended Filer: Wisconsin Energy Corporation Filer’s Commission File No.

May 28, 2014 EX-1.01

Integrys Energy Group, Inc. Conflict Minerals Report for the Year Ended December 31, 2013

EX-1.01 2 exhibit.htm CONFLICT MINERALS REPORT Exhibit 1.01 Integrys Energy Group, Inc. Conflict Minerals Report for the Year Ended December 31, 2013 This conflict minerals report for the year ended December 31, 2013 is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Securities and Exchange Commission (“SEC”) adopted the Rule to implement reporting a

May 28, 2014 SD

- FORM SD

SD 1 formsd.htm FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form SD SPECIALIZED DISCLOSURE REPORT Integrys Energy Group, Inc. (Exact Name of Registrant as Specified in Charter) Wisconsin 1-11337 39-1775292 (State or Other Jurisdiction of Incorporation) (Commission File No.) (I.R.S. Employer Identification Number) 200 East Randolph Street, Chicago, Illinois 60601

May 19, 2014 8-K

Submission of Matters to a Vote of Security Holders - 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: May 15, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wisconsin C

May 15, 2014 EX-4.1

INTEGRYS ENERGY GROUP, INC. 2014 OMNIBUS INCENTIVE COMPENSATION PLAN

INTEGRYS ENERGY GROUP, INC. 2014 OMNIBUS INCENTIVE COMPENSATION PLAN Section 1. PURPOSE AND DEFINITIONS (a) Purpose. The purpose of the Integrys Energy Group, Inc. 2014 Omnibus Incentive Compensation Plan is to promote the interests of the Company and its shareholders by (a) attracting and retaining executives and other key employees and directors of outstanding training, experience and ability; (

May 15, 2014 EX-4.3

INTEGRYS ENERGY GROUP, INC. 2014 OMNIBUS INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT

INTEGRYS ENERGY GROUP, INC. 2014 OMNIBUS INCENTIVE COMPENSATION PLAN RESTRICTED STOCK UNIT AGREEMENT You have been granted a Restricted Stock Unit (“RSU”) award with respect to shares of common stock of Integrys Energy Group, Inc. (the “Company”) under the Integrys Energy Group, Inc. 2014 Omnibus Incentive Compensation Plan (the “Plan”) with the following terms and conditions. The common stock of

May 15, 2014 S-8

- REGISTRATION STATEMENT FOR TEG 2014 OMNIBUS INENTIVE COMPENSATION PLAN

Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT Under THE SECURITIES ACT OF 1933 INTEGRYS ENERGY GROUP, INC. (Exact name of Registrant as specified in its charter) Wisconsin (State or other jurisdiction of incorporation or organization) 39-1775292 (I.R.S. Employer Identification No.) 200 East Randolph Street Chicago, Ill

May 15, 2014 EX-4.4

INTEGRYS ENERGY GROUP, INC. NONQUALIFIED STOCK OPTION AGREEMENT

INTEGRYS ENERGY GROUP, INC. NONQUALIFIED STOCK OPTION AGREEMENT You have been granted a nonqualified stock option with respect to shares of common stock of Integrys Energy Group, Inc. (the “Company”) under the Integrys Energy Group, Inc. 2014 Omnibus Incentive Compensation Plan (the “Plan”) This Agreement sets forth the terms, rights and obligations of you and the Company with respect to the grant

May 15, 2014 EX-4.2

INTEGRYS ENERGY GROUP, INC. PERFORMANCE STOCK RIGHT AGREEMENT

INTEGRYS ENERGY GROUP, INC. PERFORMANCE STOCK RIGHT AGREEMENT You have been granted a Performance Stock Right with respect to shares of common stock of Integrys Energy Group, Inc. (the “Company”) under the Integrys Energy Group, Inc. 2014 Omnibus Incentive Compensation Plan (the “Plan”). This Agreement sets forth the terms, rights and obligations of you and the Company with respect to your Perform

May 15, 2014 EX-24

POWER OF ATTORNEY

Exhibit 24 POWER OF ATTORNEY WHEREAS, INTEGRYS ENERGY GROUP, INC. a Wisconsin corporation (hereinafter referred to as the "Corporation") will file with the Securities and Exchange Commission, under the provisions of the Securities Act of 1933, a Form S-8 Registration Statement for the Integrys Energy Group, Inc. 2014 Omnibus Incentive Compensation Plan; and WHEREAS, the undersigned is a Director o

May 9, 2014 EX-10

FIVE YEAR CREDIT AGREEMENT INTEGRYS ENERGY GROUP, INC., as Borrower THE LENDERS IDENTIFIED HEREIN, THE BANK OF TOKYO-MITSUBISHI UFJ, LTD., as Syndication Agent THE BANK OF NOVA SCOTIA U.S. BANK NATIONAL ASSOCIATION, as Documentation Agents JPMORGAN C

EXECUTION COPY Deal CUSIP Number - Facility CUSIP Number - FIVE YEAR CREDIT AGREEMENT among INTEGRYS ENERGY GROUP, INC.

May 9, 2014 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: May 8, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wisconsin Co

May 2, 2014 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2014 [ ] TRANSITION REPORT PURSUAN

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2014 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 Registra

May 2, 2014 10-Q

PDF

May 1, 2014 8-K

PDF

May 1, 2014 EX-99.1

Integrys Energy Group, Inc. First Quarter 2014 Earnings Released May 1, 2014

Integrys Energy Group, Inc. First Quarter 2014 Earnings Released May 1, 2014 Contents Pages News Release 1-4 Condensed Consolidated Statements of Income 5 Condensed Consolidated Statements of Comprehensive Income 6 Condensed Consolidated Balance Sheets 7 Condensed Consolidated Statements of Cash Flows 8 Diluted Earnings Per Share – Adjusted and Weather Impacts 9 Non-GAAP Financial Information Repo

May 1, 2014 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

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: May 1, 2014 (Date of earliest event reported) Commission File Number Registrant; State of Incorporation Address; and Telephone Number IRS Employer Identification No. 1-11337 INTEGRYS ENERGY GROUP, INC. (A Wisconsin Co

March 27, 2014 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitte

March 27, 2014 DEFA14A

- DEFA14A

DEFA14A 1 d684796ddefa14a.htm DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commissi

February 27, 2014 EX-21

Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2013

Exhibit 21 Affiliates and Subsidiaries of Integrys Energy Group, Inc. December 31, 2013 INTEGRYS ENERGY GROUP, INC. (1) (2) Wisconsin Public Service Corporation (2) WPS Leasing, Inc. (2) Wisconsin Valley Improvement Company (27.1% ownership) (2) Wisconsin River Power Company (50% ownership) (2) WPS Investments, LLC (approximately 11.36% ownership) (2) American Transmission Company LLC (approximate

February 27, 2014 10-K

Annual Report - 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 10-K (Mark One) [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2013 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 Re

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