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Form 3 ARCH CAPITAL GROUP LTD. For: Sep 03 Filed by: Halgan Jerome

September 14, 2026 4:25 PM
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person *
Halgan Jerome
(Last) (First) (Middle)
WATERLOO HOUSE, GROUND FLOOR
100 PITTS BAY ROAD
(Street)
PEMBROKE HM 08
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
09/03/2026 		3. Issuer Name and Ticker or Trading Symbol
ARCH CAPITAL GROUP LTD. [ ACGL ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
CEO, Arch Glob Reinsurance Grp
 5. 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 Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Shares, $.0011 par value per share 304,627
D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) (1) 05/08/2027 Common Shares, $.0011 par value per share 12,870 27.0867 D
Stock Option (Right to Buy) (2) 12/28/2027 Common Shares, $.0011 par value per share 13,746 25.2833 D
Stock Option (Right to Buy) (3) 05/11/2028 Common Shares, $.0011 par value per share 15,822 21.55 D
Stock Option (Right to Buy) (4) 02/28/2029 Common Shares, $.0011 par value per share 15,929 27.67 D
Stock Option (Right to Buy) (5) 02/27/2030 Common Shares, $.0011 par value per share 15,461 37.42 D
Stock Option (Right to Buy) (6) 02/26/2031 Common Shares, $.0011 par value per share 13,692 30.82 D
Stock Option (Right to Buy) (7) 02/25/2032 Common Shares, $.0011 par value per share 10,510 42.54 D
Stock Option (Right to Buy) (8) 02/24/2033 Common Shares, $.0011 par value per share 6,604 64.17 D
Stock Option (Right to Buy) (9) 03/06/2033 Common Shares, $.0011 par value per share 813 66.7 D
Stock Option (Right to Buy) (10) 02/27/2034 Common Shares, $.0011 par value per share 5,534 82.22 D
Stock Option (Right to Buy) (11) 03/04/2035 Common Shares, $.0011 par value per share 8,319 91.87 D
Stock Option (Right to Buy) 05/02/2028 05/02/2035 Common Shares, $.0011 par value per share 7,682 92.48 D
Stock Option (Right to Buy) (12) 03/03/2036 Common Shares, $.0011 par value per share 8,721 100.48 D
Explanation of Responses:
1. This stock option is exercisable in three equal annual installments commencing May 8, 2018, and the next two installments on May 8, 2019 and May 8, 2020, subject to the applicable award agreement.
2. This stock option is exercisable in three equal annual installments commencing December 28, 2018, and the next two installments on December 28, 2019 and December 28, 2020, subject to the applicable award agreement.
3. This stock option is exercisable in three equal annual installments commencing May 11, 2019, and the next two installments on May 11, 2020 and May 11, 2021, subject to the applicable award agreement.
4. This stock option is exercisable in three equal annual installments commencing February 28, 2020, and the next two installments on February 28, 2021 and February 28, 2022, subject to the applicable award agreement.
5. This stock option is exercisable in three equal annual installments commencing February 27, 2021, and the next two installments on February 27, 2022 and February 27, 2023, subject to the applicable award agreement.
6. This stock option is exercisable in three equal annual installments commencing February 26, 2022, and the next two installments on February 26, 2023 and February 26, 2024, subject to the applicable award agreement.
7. This stock option is exercisable in three equal annual installments commencing February 25, 2023, and the next two installments on February 25, 2024 and February 25, 2025, subject to the applicable award agreement.
8. This stock option is exercisable in three equal annual installments commencing February 24, 2024, and the next two installments on February 24, 2025 and February 24, 2026, subject to the applicable award agreement.
9. This stock option is exercisable in three equal annual installments commencing March 6, 2024, and the next two installments on March 6, 2025 and March 6, 2026, subject to the applicable award agreement
10. The stock option is exercisable in three equal annual installments commencing February 27, 2025, and the next two installments on February 27, 2026 and February 27, 2027, subject to the applicable award agreement
11. The stock option is exercisable in three equal annual installments commencing March 4, 2026, and the next two installments on March 4, 2027 and March 4, 2028, subject to the applicable award agreement.
12. 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.
/s/ Jerome Halgan 09/14/2026
** 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.

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