DONEGAL GROUP INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

For the quarterly period ended March 31, 2025

OR

For the transition period from to .

Commission file number 0-15341

Donegal Group Inc.

(Exact name of registrant as specified in its charter)

1195 River Road, P.O. Box 302, Marietta, PA 17547

(Address of principal executive offices) (Zip code)

(717)426-1931

(Registrant’s telephone number, including area code)

Not applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

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. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐ No ☒

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date:30,519,896 shares of Class A Common Stock, par value $0.01 per share, and 5,576,775 shares of Class B Common Stock, par value $0.01 per share, outstanding on May 1, 2025.

DONEGAL GROUP INC.

INDEX TO FORM 10-Q REPORT

Index