Arch Capital director granted 2,071 shares

MOCZARSKI ALEXANDER S reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

MOCZARSKI ALEXANDER S reported acquisition or exercise transactions in this Form 4 filing.

ARCH CAPITAL GROUP LTD. director Alexander S. Moczarski received a grant of 2,071 restricted common shares of the company. The grant price is shown as $0.00 per share, indicating a share award as part of his compensation rather than an open-market purchase.

After this award, he directly holds 4,037 common shares. According to the restricted share agreement, these shares will vest on the earlier of one year after the grant date or Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders, tying vesting to continued board service and the company’s shareholder meeting cycle.

Insider Trade Summary

Grant/Award: 2,071 shares

Grant/Award 1 txn

Insider MOCZARSKI ALEXANDER S

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Shares, $.0011 par value per share	2,071	$0.00	$0.00

Holdings After Transaction: Common Shares, $.0011 par value per share — 4,037 shares (Direct)

Footnotes (1)

1. F1. Subject to the terms of the restricted share agreement, represents restricted shares that will become vested on the date that is the earlier of 1) one year following the grant date or 2) Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders.

Key Figures

Restricted shares granted: 2,071 shares Grant price per share: $0.00 per share Shares held after grant: 4,037 shares

3 metrics

Restricted shares granted 2,071 shares Director restricted share award on grant date

Grant price per share $0.00 per share Stated transaction price for restricted share grant

Shares held after grant 4,037 shares Total common shares directly held after transaction

Key Terms

restricted shares, restricted share agreement, Annual General Meeting of Shareholders, Grant, award, or other acquisition

4 terms

restricted shares financial

"represents restricted shares that will become vested on the date that is the earlier"

Restricted shares are company stock that cannot be sold or transferred immediately because they are subject to legal or contractual limits, such as a required holding period or performance conditions. They matter to investors because these locked-up shares can affect a company’s available stock for trading, future dilution, and insider incentives—imagine a gift that can’t be cashed until certain conditions are met, which changes when and how much supply can suddenly enter the market.

restricted share agreement financial

"Subject to the terms of the restricted share agreement, represents restricted shares"

Annual General Meeting of Shareholders financial

"or 2) Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders"

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

FAQ

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

What insider transaction did ARCH CAPITAL GROUP LTD. (ACGL) report?

ARCH CAPITAL GROUP LTD. reported that director Alexander S. Moczarski received a grant of 2,071 restricted common shares. This was a compensation-related share award at a stated price of $0.00 per share, not an open-market stock purchase or sale.

How many ARCH CAPITAL GROUP LTD. shares does the director hold after this Form 4?

Following the restricted share grant, director Alexander S. Moczarski directly holds 4,037 common shares of ARCH CAPITAL GROUP LTD. This figure includes the 2,071 newly granted restricted shares, which are subject to vesting conditions tied to time and the next shareholder meeting.

When do the 2,071 restricted shares for ARCH CAPITAL GROUP LTD. (ACGL) vest?

The 2,071 restricted common shares will vest on the earlier of one year after the grant date or Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders. This schedule links vesting to both the passage of time and the timing of the company’s shareholder meeting.

Was the ARCH CAPITAL GROUP LTD. (ACGL) director’s share grant an open-market purchase?

No, the Form 4 describes the transaction as a grant or award acquisition, coded as “A,” with a transaction price of $0.00 per share. This indicates a compensation-related restricted share award rather than an open-market purchase of ARCH CAPITAL GROUP LTD. stock.

What does the transaction code on the ARCH CAPITAL GROUP LTD. Form 4 mean?

The Form 4 uses transaction code “A,” described as a grant, award, or other acquisition. This signals that Alexander S. Moczarski received 2,071 restricted common shares from ARCH CAPITAL GROUP LTD. as compensation, rather than buying or selling shares in the open market.

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

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Accepted by SEC EDGAR 05/07/2026 - 04:49 PM EDT 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^*

MOCZARSKI ALEXANDER S

(Last) (First) (Middle)

WATERLOO HOUSE, GROUND FLOOR

100 PITTS BAY ROAD

(Street)

PEMBROKE HM 08

(City) (State) (Zip)

BERMUDA

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/05/2026

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 Shares, $.0011 par value per share	05/05/2026		A		2,071	A	(1)	4,037	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

Explanation of Responses:

1. Subject to the terms of the restricted share agreement, represents restricted shares that will become vested on the date that is the earlier of 1) one year following the grant date or 2) Arch Capital Group Ltd.'s next Annual General Meeting of Shareholders.

Remarks:

	/s/ Alexander S. Moczarski	05/07/2026
	** 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)