ASIC director exercises RSUs into 980 common shares

Ategrity Specialty Insurance Co Holdings director Mercer William S exercised restricted stock units into common shares in a routine compensation-related move.

Rhea-AI Filing Summary

Ategrity Specialty Insurance Co Holdings director Mercer William S exercised restricted stock units into common shares in a routine compensation-related move. On June 11, 2026, he acquired 980 shares of Common Stock through the exercise or conversion of derivative securities, bringing his direct holdings to 8,280 common shares after the transaction.

The transaction reflects vesting of previously granted Restricted Stock Units (RSUs). Each RSU represents a contingent right to receive one share of common stock. A prior grant of 2,941 RSUs on June 11, 2025 vests in three equal annual installments, with the remaining RSUs scheduled to vest in equal installments on June 11, 2027 and June 11, 2028. Following this event, 1,961 RSUs remain outstanding for potential future conversion into common shares, indicating that additional share deliveries may occur as the award continues to vest over time.

Insider Trade Summary

980 shares exercised/converted

Exercise 2 txns

Insider Mercer William S

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	980	$0.00	$0.00
Exercise	Common Stock	980	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 1,961 contracts (Direct); Common Stock — 8,280 shares (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock.
2. F2. On June 11, 2025, the reporting person was granted 2,941 restricted stock units, vesting in three equal annual installments. The remaining restricted stock units will vest in equal installments on June 11, 2027 and June 11, 2028.

Key Figures

Common shares acquired: 980 shares Total common shares after: 8,280 shares RSUs granted: 2,941 units +2 more

5 metrics

Common shares acquired 980 shares Common Stock delivered via derivative exercise on June 11, 2026

Total common shares after 8,280 shares Director’s direct Common Stock holdings following the transaction

RSUs granted 2,941 units Restricted Stock Units grant on June 11, 2025, vesting over three years

RSUs remaining 1,961 units Restricted Stock Units outstanding after current settlement

RSU transaction price $0.00 per share Reported price per share for RSU conversion

Key Terms

Restricted Stock Units, Exercise or conversion of derivative security, contingent right

3 terms

Restricted Stock Units financial

"On June 11, 2025, the reporting person was granted 2,941 restricted stock units, vesting in three equal annual installments."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ASIC director Mercer William S report on this Form 4?

Director Mercer William S reported exercising restricted stock units into 980 shares of Common Stock. This compensation-related transaction increased his directly held common shares to 8,280 and reflects the vesting and settlement of previously granted equity awards.

How many Ategrity Specialty Insurance (ASIC) shares does Mercer William S hold after the transaction?

After the reported transaction, Mercer William S directly holds 8,280 shares of Common Stock. This total reflects the addition of 980 shares delivered upon the exercise or conversion of vested restricted stock units into common shares.

What are the details of the restricted stock unit grant disclosed for ASIC?

On June 11, 2025, Mercer William S was granted 2,941 restricted stock units, vesting in three equal annual installments. The remaining RSUs from this grant are scheduled to vest in equal installments on June 11, 2027 and June 11, 2028.

How many restricted stock units remain outstanding for Mercer William S at ASIC?

Following the exercise of part of his award, 1,961 Restricted Stock Units remain outstanding for Mercer William S. Each RSU represents a contingent right to receive one share of Ategrity Specialty Insurance common stock upon future vesting and settlement.

Was the ASIC Form 4 transaction an open-market buy or a compensation event?

The ASIC Form 4 transaction was a compensation-related event, not an open-market purchase. It reflects the exercise or conversion of restricted stock units into 980 common shares at a reported price per share of $0.00 in the filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/15/2026 - 04:05 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mercer William S

(Last) (First) (Middle)

ATEGRITY SPECIALTY INSURANCE CO HOLDINGS

9 WEST 57TH STREET, 33RD FLOOR

(Street)

NEW YORK NEW YORK 10019

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ategrity Specialty Insurance Co Holdings [ ASIC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/11/2026		M		980	A	(1)	8,280	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	06/11/2026		M			980	(2)	(2)	Common Stock	980	$0	1,961	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's Common Stock.

2. On June 11, 2025, the reporting person was granted 2,941 restricted stock units, vesting in three equal annual installments. The remaining restricted stock units will vest in equal installments on June 11, 2027 and June 11, 2028.

	/s/ Eric Crespolini, Attorney-in-Fact	06/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)