Form 8-K

8-K — SELECTIVE INSURANCE GROUP INC

Accession: 0001104659-26-108267

Filed: 2026-09-16

Period: 2026-09-16

CIK: 0000230557

SIC: 6331 (FIRE, MARINE & CASUALTY INSURANCE)

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

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2625551d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2625551d1_ex99-1.htm)

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UNITED STATES

SECURITIES AND

EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT

TO SECTION 13 OR 15(D) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date

of Report (Date of earliest event reported) September 16, 2026

SELECTIVE

INSURANCE GROUP, INC.

(Exact name of registrant as specified in its charter)

New Jersey

001-33067

22-2168890

(State or other jurisdiction of incorporation)

(Commission File Number)

(I.R.S Employer Identification No.)

40 Wantage Avenue, Branchville, New Jersey 07890

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code (973) 948-3000

Not

Applicable

(Former name or former address, if changed since last report.)

Check the appropriate

box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the

following provisions:

¨ Written communications pursuant to Rule 425 under the

Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the

Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b)

under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c)

under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title

of each class

Trading

Symbol (s)

Name

of each exchange on which registered

Common Stock, par value $2 per share

SIGI

The Nasdaq Stock Market LLC

Depositary Shares, each representing a 1/1,000th interest in

a share of 4.60% Non-Cumulative Preferred Stock, Series B, without par value

SIGIP

The Nasdaq Stock Market LLC

Indicate by check mark

whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this

chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging

growth company ¨

If an emerging growth

company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any

new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Section 5 - Corporate Governance and Management

Item 5.02. Departure of Directors or Certain Officers; Election

of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On September 16, 2026, the Board of Directors (the “Board”)

of Selective Insurance Group, Inc. (the “Company”) increased the size of the Board from 12 members to 13 members and appointed

Wole C. Coaxum as a non-employee director of the Company, effective September 16, 2026 (the “Appointment”). The Board also

named Mr. Coaxum to the Board’s Audit Committee and Compensation and Human Capital Committee. Mr. Coaxum previously served on the

Board from 2020 to 2025. Mr. Coaxum’s term will continue until the Company’s 2027 Annual Meeting of Stockholders or until

his successor has been duly elected and qualified.

Mr. Coaxum will receive the same compensation and benefits as the other

non-employee directors on the Board, consistent with the Company’s non-employee director compensation program described in the Definitive Proxy Statement on Schedule 14A (at pages 77 to 79) that the Company filed with the Securities and Exchange Commission on March 26, 2026.

However, Mr. Coaxum will not receive an annual equity award for fiscal year 2026, as the Company’s 2026 Annual Meeting of Stockholders,

at which time the annual equity awards were granted, was already held. Mr. Coaxum’s annual cash retainer for fiscal year 2026 will

be prorated for the period from the Appointment through December 31, 2026.

No arrangements or understandings exist between Mr. Coaxum or any other

persons by which he was named a director of the Company. Mr. Coaxum has no family relationships with any Company director or executive

officer, and the Company has not entered into any transactions with Mr. Coaxum reportable per Item 404(a) of Regulation S-K.

Item 7.01. Regulation FD Disclosure.

On September 16, 2026, the Company issued a press release regarding

the Appointment, a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference.

The information in Item 7.01 of this Current Report on Form 8-K, including

Exhibit 99.1, is being furnished and shall not be deemed “filed” for the purpose or liabilities of Section 18 of the Securities

Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as

amended, except as expressly set forth by specific reference in any filing. The Company makes no admission about the materiality of any

information in this report or the attached exhibits.

Important information may be disseminated initially or exclusively

via the Company’s corporate website, www.selective.com/investors. Investors should consult the site to access this information.

Any website addresses included herein are inactive textual references only. The information contained on any such website referenced herein

is not incorporated into this Current Report on Form 8-K.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description of Exhibit

99.1

Press Release of Selective Insurance Group, Inc. dated September 16, 2026

104

The cover page from this Current Report on Form 8-K, formatted in Inline XBRL

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 hereunto duly authorized.

SELECTIVE INSURANCE GROUP, INC.

Date:

September 16, 2026

By:

/s/ Michael H. Lanza

Michael H. Lanza

Executive Vice President and General Counsel

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2625551d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

SELECTIVE APPOINTS WOLE COAXUM AS INDEPENDENT

DIRECTOR

Short Hills, N.J., September 16, 2026 – Selective Insurance

Group, Inc. (Nasdaq: SIGI) today announced that Wole Coaxum has been appointed to its Board of Directors, effective today. Mr. Coaxum

previously served as an independent director for Selective from 2020 to 2025. With this new appointment, Selective’s Board now consists

of 13 directors, 12 of whom are independent.

“Wole has a unique set of skills that will enhance our collective

Board capabilities,” said John J. Marchioni, Chairman, President and Chief Executive Officer. “He brings extensive expertise

in financial services and FinTech, along with an entrepreneurial leadership background and a strong commitment to increasing economic

access. We are excited to welcome him back to the boardroom to help us guide our long-term strategic priorities.”

Mr. Coaxum is the founder and Chief Executive Officer of On Our Block,

a New York-based firm that offers strategic advisory services and supports capital-raising for owner-operated businesses. He previously

founded Mobility Capital Finance, Inc. (“MoCaFi”), a New York-based digital banking platform that he led as Chief Executive

Officer from 2015 until its wind-down in 2026.

Earlier in his three-decade career in the financial services and insurance

industries, Mr. Coaxum was a Managing Director at JPMorganChase, which he joined in 2007. In this role, he was responsible for commercial

credit card sales and relationship management. The first ten years of his career were spent at Citigroup, and he subsequently held senior

executive positions for five years at Willis Group Holdings, the multi-national insurance brokerage, in both the U.S. and Canada. He earned

a Bachelor of Arts in history from Williams College and a Master of Business Administration in finance from New York University’s

Stern School of Business.

“Selective has a proud 100-year legacy of serving customers and

communities with leading insurance solutions. I am honored to rejoin the Board and support the company’s continued success,”

said Mr. Coaxum.

Mr. Coaxum has been appointed to the Board’s Audit Committee

and Compensation and Human Capital Committee.

About Selective Insurance Group, Inc.

Selective Insurance Group, Inc. (Nasdaq: SIGI) is a holding company

for 10 property and casualty insurance companies rated “A+” (Superior) by AM Best. Through independent agents, the insurance

companies offer standard insurance for commercial and personal risks and specialty insurance for commercial risks. Selective also offers

flood insurance through the National Flood Insurance Program’s Write Your Own Program. Selective’s unique position as both

a leading insurance group and employer of choice is widely recognized, with awards and honors including listing in Forbes Best Midsize

Employers and certification for seven consecutive years as a Great Place to Work®.

Investor Contact:

Brad Wilson

973-948-1283

Brad.Wilson@Selective.com

Media Contact:

Jamie Beal

973-948-1234

Jamie.Beal@Selective.com

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