[Form 4] ARCH CAPITAL GROUP LTD. Insider Trading Activity

Rhea-AI Filing Summary

Arch Capital Group Ltd. (ACGL) reported an insider transaction by a director on a Form 4. On October 30, 2025, the reporting person recorded gifts of common shares at a price of $0 per share, with individual entries of 877, 877, and 438 shares (transaction code G).

Following these transactions, the filing lists 192,807 common shares indirectly held by a revocable trust for which the reporting person and spouse serve as trustees. The filing also shows additional indirect holdings of 163,000 common shares by an irrevocable trust for which the spouse is a co‑trustee, and 53,000 common shares by an irrevocable trust for which the reporting person is a co‑trustee.

Insider Trade Summary

2,192 shares gifted

Mixed 5 txns

Insider Vollaro John D

Role Director

Type	Security	Shares	Price	Value
Gift	Common Shares, $.0011 par value per share	877	$0.00	--
Gift	Common Shares, $.0011 par value per share	877	$0.00	--
Gift	Common Shares, $.0011 par value per share	438	$0.00	--
holding	Common Shares, $.0011 par value per share	--	--	--
holding	Common Shares, $.0011 par value per share	--	--	--

Holdings After Transaction: Common Shares, $.0011 par value per share — 194,122 shares (Indirect, By Trust)

Footnotes (1)

1. Such common shares are held by a revocable trust for which the reporting person and his spouse serve as trustees. Such common shares are held by an irrevocable trust for which the reporting person's spouse is a co-trustee. Such common shares are held by an irrevocable trust for which the reporting person is a co-trustee.

Form 4 Insider Transactions: What Each Field Means →

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^*

Vollaro John D

(Last) (First) (Middle)

WATERLOO HOUSE, GROUND FLOOR

100 PITTS BAY ROAD

(Street)

PEMBROKE D0 HM 08

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ARCH CAPITAL GROUP LTD. [ ACGL ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/30/2025

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

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

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

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 Shares, $.0011 par value per share	10/30/2025		G		877	D	$0	194,122	I	By Trust(1)
Common Shares, $.0011 par value per share	10/30/2025		G		877	D	$0	193,245	I	By Trust(1)
Common Shares, $.0011 par value per share	10/30/2025		G		438	D	$0	192,807	I	By Trust(1)
Common Shares, $.0011 par value per share								163,000	I	By Trust(2)
Common Shares, $.0011 par value per share								53,000	I	By Trust(3)

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

Explanation of Responses:

1. Such common shares are held by a revocable trust for which the reporting person and his spouse serve as trustees.

2. Such common shares are held by an irrevocable trust for which the reporting person's spouse is a co-trustee.

3. Such common shares are held by an irrevocable trust for which the reporting person is a co-trustee.

	/s/ John Vollaro	11/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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