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): June 10, 2025

Ategrity Specialty Insurance Company Holdings 

(Exact name of registrant as specified in its charter)

9 West 57th Street, 33rd Floor 

New York, NY 10019 

(Address of principal executive offices, including Zip Code)

Registrant’s telephone number, including area code: (212) 509-1600

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:

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

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 x

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. ¨

In connection with the initial public offering (the “Offering”) by Ategrity Specialty Insurance Company Holdings (the “Company”) of its common stock, par value $0.001 (the “Common Stock”), described in the final prospectus (the “Prospectus”), dated June 10, 2025, filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act of 1933, as amended (the “Securities Act”), which is deemed to be part of the Registration Statement on Form S-1 (File No. 333-286059) (as amended, the “Registration Statement”), the following agreements were entered into:

The Shared Services Agreement, Stockholders’ Agreement, form of Indemnification Agreement, and Employment Agreement are filed herewith as Exhibits 10.1, 10.2, 10.3, and 10.4, respectively, and are incorporated herein by reference. The terms of these agreements are substantially the same as the terms set forth in the forms of such agreements previously filed as exhibits to the Registration Statement and as described therein.

The information set forth under Item 5.03 below is incorporated by reference in this Item 3.03.

Effective June 10, 2025, Messrs. William Mercer, Robert C. Merton, Mitchell Pressman, and John (Jack) L. Sennott, Jr. (collectively, the “Elected Directors”) were elected to the board of directors of the Company. Messrs. Mercer, Merton, and Sennott will serve on the Company’s Audit Committee. Biographical information regarding the Elected Directors has previously been reported by the Company in the Registration Statement.

Each of the Elected Directors will participate in the Company’s non-employee director compensation program as described under the “Post-IPO director compensation program” section in the Registration Statement. Each of the Elected Directors has entered into the Company's Indemnification Agreement.

On June 10, 2025, the Company converted to a Nevada corporation and filed its Articles of Incorporation (the “Charter”) with the Nevada Secretary of State, in the form previously filed as Exhibit 3.1 to the Registration Statement, and the Company’s Bylaws (the “Bylaws”), in the form previously filed as Exhibit 3.2 to the Registration Statement, became effective. The Charter, among other things, provides that the Company’s authorized capital stock consists of 500,000,000 shares of Common Stock and 100,000,000 shares of preferred stock. A description of the Company’s capital stock, after giving effect to the adoption of the Charter and Bylaws, has previously been reported by the Company in the Registration Statement. The Charter and Bylaws are filed herewith as Exhibits 3.1 and 3.2, respectively, and are incorporated herein by reference.

On June 12, 2025, the Company completed the Offering of 6,666,667 shares of its Common Stock at a price to the public of $17.00 per share. The gross proceeds to the Company from the initial public offering were $113.3 million, before deducting underwriting discounts and commissions.

Brownstein Hyatt Farber Schreck, LLP, counsel to the Company, has issued an opinion regarding the validity of the shares of Common Stock offered and sold in the Offering. A copy of the opinion is filed as Exhibit 5.1 to this Current Report on Form 8-K.

(d) Exhibits.

* Certain of the schedules and attachments to this exhibit have been omitted pursuant to Regulation S-K, Item 601(a)(5). The registrant hereby undertakes to provide further information regarding such omitted materials to the SEC upon request.

** Certain portions of this exhibit (indicated by “[***]”) have been redacted pursuant to Regulation S-K, Item 601(a)(6).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.