Arch Capital president awarded options, shares

Arch Capital Group Ltd. president Rajeh Maamoun reported awards of both stock options and common shares.

Rhea-AI Filing Summary

Arch Capital Group Ltd. president Rajeh Maamoun reported awards of both stock options and common shares. He acquired stock options for 24,475 shares at a price of $0.00 per share and was granted 6,843 common shares, also at $0.00 per share.

Following the common share award, his directly held common share position increased to 468,978 shares. The stock option grant becomes exercisable in three equal annual installments starting on March 3, 2027, with additional installments on March 3, 2028 and March 3, 2029, subject to the applicable award agreement.

Insider Trade Summary

Grant/Award: 31,318 shares

Grant/Award 2 txns

Insider Rajeh Maamoun

Role President, Arch Capital Group

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	24,475	$0.00	$0.00
Grant/Award	Common Shares, $.0011 par value per share	6,843	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 24,475 contracts (Direct); Common Shares, $.0011 par value per share — 468,978 shares (Direct)

Footnotes (1)

1. F1. This stock option is exercisable in three equal annual installments commencing March 3, 2027, and the next two installments on March 3, 2028 and March 3, 2029, subject to the applicable award agreement.

FAQ

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

What did Arch Capital Group (ACGL) president Rajeh Maamoun receive in this Form 4 filing?

Rajeh Maamoun received a stock option award and a share grant. The filing shows options for 24,475 shares at $0.00 per share and a separate grant of 6,843 common shares, also at $0.00, increasing his direct common share holdings.

How many Arch Capital (ACGL) common shares does Rajeh Maamoun hold after these awards?

After the March 3, 2026 awards, Rajeh Maamoun directly owns 468,978 common shares. This total reflects the addition of the 6,843-share grant reported in the filing and represents his direct ownership position following the transaction.

When do Rajeh Maamoun’s new Arch Capital (ACGL) stock options vest?

The 24,475-share stock option award vests in three equal annual installments. Vesting begins on March 3, 2027, with the next two installments on March 3, 2028 and March 3, 2029, all subject to the applicable award agreement conditions.

Was Rajeh Maamoun’s Arch Capital (ACGL) transaction an open-market purchase or a grant?

The transactions were grants, not open-market purchases. The filing identifies both the stock option and the 6,843 common shares as acquisitions coded as awards at $0.00 per share, indicating compensation-related grants rather than purchases on the open market.

What type of securities did Rajeh Maamoun acquire from Arch Capital (ACGL)?

He acquired a derivative award and a non-derivative award. The derivative award is a stock option labeled “Right to Buy” for 24,475 shares, and the non-derivative award is 6,843 common shares with a par value of $0.0011 per share.

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

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Accepted by SEC EDGAR 03/05/2026 - 05:09 PM EST 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^*

Rajeh Maamoun

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Arch Capital Group

3. Date of Earliest Transaction (Month/Day/Year)
03/03/2026

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	03/03/2026		A		6,843	A	$0	468,978	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
Stock Option (Right to Buy)	$100.48	03/03/2026		A		24,475		(1)	03/03/2036	Common Shares, $.0011 par value per share	24,475	$0	24,475	D

Explanation of Responses:

1. This stock option is exercisable in three equal annual installments commencing March 3, 2027, and the next two installments on March 3, 2028 and March 3, 2029, subject to the applicable award agreement.

Remarks:

	/s/ Maamoun Rajeh	03/05/2026
	** 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.