Arch Capital Group (ACGL) president exercises options and sells 5,907 shares

Rhea-AI Filing Summary

Arch Capital Group president David Gansberg exercised stock options and sold a portion of the resulting shares. He exercised options for 10,770 common shares at an exercise price of $18.90 per share and received the same number of common shares.

On the same day, he sold 5,907 common shares in open-market transactions at a weighted average price of $96.3715 per share, with individual prices ranging from $96.35 to $96.42. Following these transactions, he holds 336,559 common shares directly.

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

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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^*

Gansberg David

(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)
03/10/2026

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	03/10/2026		M		10,770	A	$18.9	342,466	D
Common Shares, $.0011 par value per share	03/10/2026		S		5,907	D	$96.3715(1)	336,559	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)	$18.9	03/10/2026		M			10,770	(2)	05/13/2026	Common Shares, $.0011 par value per share	10,770	$0	0	D

Explanation of Responses:

1. The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $96.35 to $96.42. Upon request, the full information regarding the number of shares sold at each separate price within the range will be provided to the issuer, any security holder of the issuer or the staff of the Securities Exchange Commission.

2. This stock option is exercisable in three equal annual installments commencing May 13, 2017, and the next two installments on May 13, 2018 and May 13, 2019, subject to the applicable award agreement.

Remarks:

	/s/ David Gansberg	03/12/2026
	** 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.

FAQ

What did Arch Capital Group (ACGL) executive David Gansberg do in this Form 4?

David Gansberg exercised stock options and sold some resulting shares. He converted 10,770 options into common shares, then sold 5,907 of those shares in open-market transactions, and continued to hold a substantial direct stake in Arch Capital Group.

How many Arch Capital Group (ACGL) shares did David Gansberg sell and at what price?

David Gansberg sold 5,907 Arch Capital Group common shares. The sales were executed at a weighted average price of $96.3715 per share, with individual trade prices ranging from $96.35 to $96.42, as disclosed in the filing footnote.

How many stock options did David Gansberg exercise in Arch Capital Group (ACGL)?

He exercised 10,770 stock options for Arch Capital Group common shares. These options carried an exercise price of $18.90 per share and had originally become exercisable in three equal annual installments beginning on May 13, 2017, subject to the applicable award agreement.

How many Arch Capital Group (ACGL) shares does David Gansberg own after this Form 4 transaction?

After the reported transactions, David Gansberg directly holds 336,559 common shares. This figure reflects his position following the option exercise of 10,770 shares and the subsequent open-market sale of 5,907 shares disclosed in the filing.

What type of transaction is reported for Arch Capital Group (ACGL) in this Form 4?

The Form 4 reports an option exercise followed by an open-market sale. Gansberg exercised a stock option, acquiring 10,770 common shares, then sold 5,907 of those shares in market transactions, while retaining the remaining shares as part of his direct holdings.

What role does David Gansberg hold at Arch Capital Group (ACGL) in this insider filing?

David Gansberg is identified as President of Arch Capital Group. The Form 4 specifies his officer status and title, indicating the reported option exercise and share sale transactions involve a senior executive of the company.