OCEANFIRST FINANCIAL CORP 10-Q

Item 5. Other Information During the three months ended June 30, 2025, no directors or executive officers of the Company adopted or terminated any contract, instruction or written plan for the purchase or sale of the Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) and/or any “Rule 10b5-1 trading arrangement.” 47 Table of Contents Item 6. Exhibits Exhibit No: Exhibit Description Reference 31.1 Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Filed with this document 31.2 Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 Filed with this document 32.0 Certification pursuant to 18 U.S.C. Section 1350 as added by Section 906 of the Sarbanes-Oxley Act of 2002 Filed with this document 101.0 The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2025, formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Financial Condition, (ii) the Consolidated Statements of Income, (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 104.0 Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101) 48 Table of Contents SIGNATURES 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. OceanFirst Financial Corp. Registrant DATE: August 4, 2025 /s/ Christopher D. Maher Christopher D. Maher Chairman and Chief Executive Officer DATE: August 4, 2025 /s/ Patrick S. Barrett Patrick S. Barrett Senior Executive Vice President and Chief Financial Officer 49