Item 6. EXHIBITS

2.1 Agreement and Plan of Merger, dated July 28, 2021, by and between Citizens Financial Group, Inc. and Investors Bancorp, Inc. (incorporated herein by reference to Exhibit 2.1 of the Current Report on Form 8-K, filed July 30, 2021)

3.1 Restated Certificate of Incorporation of the Registrant as in effect on the date hereof, as filed with the Secretary of State of the State of Delaware and effective July 8, 2021 (incorporated herein by reference to Exhibit 3.1 of the Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021, filed August 3, 2021)

3.2 Amended and Restated Bylaws of the Registrant (as amended and restated on April 23, 2020) (incorporated herein by reference to Exhibit 3.2 of the Current Report on Form 8-K, filed April 24, 2020)

31.1 Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002*

31.2 Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002*

32.1 Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*

32.2 Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*

101 The following materials from the Registrant's Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2021, formatted in inline XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Consolidated Financial Statements*

104 Cover page interactive data file in inline XBRL format, included in Exhibit 101 to this report*

• Filed herewith.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized on November 3, 2021.

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