SELECTIVE INSURANCE GROUP INC

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☒

Filed by a Party other than the Registrant☐

Check the appropriate box:

SELECTIVE INSURANCE GROUP, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

40 Wantage Avenue

Branchville, New Jersey 07890

March 26, 2025

**NOTICE OF 2025 ANNUAL MEETING OF STOCKHOLDERS

**AND PROXY STATEMENT

Wednesday, April 30, 2025

8:30 AM Eastern Time

Attending the Annual Meeting The 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of Selective Insurance Group, Inc. (“Selective” and “we”) will be held on Wednesday, April 30, 2025, at 8:30 AM Eastern Time. The Annual Meeting will be a virtual meeting held exclusively via live audiocast. To attend, vote, and submit questions during the Annual Meeting, please visit http://www.virtualshareholdermeeting.com/SIGI2025 and enter the 16-digit control number on your Notice of Internet Availability or proxy card. If you requested printed copies of the proxy materials, we encourage you to vote your shares by phone, by mail, or online in advance to ensure your vote will be represented at the Annual Meeting. Even if you plan to attend the Annual Meeting virtually, we encourage you to vote your shares in advance.

At the Annual Meeting, we will ask stockholders to:

In addition, we will attend to any other business properly brought before the Annual Meeting and its adjournments, postponements, or continuations, if any. After the Annual Meeting, we will offer time for your questions. In connection with the Annual Meeting, we are also making available Selective’s 2024 Annual Report to Stockholders (“2024 Annual Report”).

The Board of Directors recommends that you vote “FOR” each of the director nominees in Proposal 1 and “FOR” each of Proposals 2 and 3. These proposals are further described in the Proxy Statement.

Selective stockholders of record as of the close of business on March 6, 2025 are entitled to notice of, and the right to vote at, the Annual Meeting and any adjournment, postponement, or continuation thereof.

YOUR VOTE IS IMPORTANT. VOTE YOUR SHARES BY (I) CALLING THE TOLL-FREE TELEPHONE NUMBER LISTED ON THE PROXY CARD, (II) ACCESSING THE INTERNET WEBSITE LISTED ON THE PROXY CARD, OR (III) COMPLETING, DATING, AND SIGNING THE PROXY CARD AND RETURNING IT IN THE ENCLOSED ENVELOPE. YOU MAY REVOKE YOUR PROXY AT ANY TIME BEFORE IT IS VOTED AT THE ANNUAL MEETING THROUGH THE PROCESSES DESCRIBED IN THE PROXY STATEMENT. IF YOU HOLD SHARES THROUGH A BROKER OR OTHER CUSTODIAN, PLEASE SEE THE VOTING INSTRUCTIONS PROVIDED TO YOU BY THAT BROKER OR CUSTODIAN.

Very truly yours,

John J. Marchioni

Chairman of the Board, President and Chief Executive Officer

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