Sec Form 4 Filing - Gansberg David @ ARCH CAPITAL GROUP LTD. - 2022-11-02

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Gansberg David 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) CEO, GLOBAL MORTGAGE GROUP (Last) (First) (Middle) C/O ARCH CAPITAL GROUP LTD., WATERLOO HOUSE, 100 PITTS BAY ROAD 3. Date of Earliest Transaction (MM/DD/YY) 11/02/2022 (Street) PEMBROKE, D0HM 08 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 11/02/2022 M 7,395 A $ 17.8433 180,158 D Common Shares, $.0011 par value per share 11/02/2022 F( 1 ) 4,591 D $ 56.22 175,567 D Common Shares, $.0011 par value per share 11/02/2022 M 29,070 A $ 17.68 204,637 D Common Shares, $.0011 par value per share 11/02/2022 F( 2 ) 17,998 D $ 56.22 186,639 D Common Shares, $.0011 par value per share 11/02/2022 M 10,950 A $ 19.09 197,589 D Common Shares, $.0011 par value per share 11/02/2022 F( 3 ) 6,933 D $ 56.22 190,656 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. Tr ansaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Share Appreciation Right $ 17.8433 11/02/2022 M 7,395 ( 4 ) 05/09/2023 Common Shares, $.0011 par value per share 7,395 $ 0 0 D Share Appreciation Right $ 17.68 11/02/2022 M 29,070 ( 5 ) 02/04/2024 Common Shares, $.0011 par value per share 29,070 $ 0 0 D Share Appreciation Right $ 19.09 11/02/2022 M 10,950 ( 6 ) 05/13/2024 Common Shares, $.0011 par value per share 10,950 $ 0 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Gansberg David C/O ARCH CAPITAL GROUP LTD. WATERLOO HOUSE, 100 PITTS BAY ROAD PEMBROKE, D0HM 08 CEO, GLOBAL MORTGAGE GROUP Signatures /s/ David Gansberg 11/04/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )In connection with the exercise of the share appreciation rights award described in Table II, 4,591 common shares were disposed of in satisfaction of the exercise price and taxes due. The reporting person received a net issuance of 2,804 common shares. ( 2 )In connection with the exercise of the share appreciation rights award described in Table II, 17,998 common shares were disposed of in satisfaction of the exercise price and taxes due. The reporting person received a net issuance of 11,072 common shares. ( 3 )In connection with the exercise of the share appreciation rights award described in Table II, 4,591 common shares were disposed of in satisfaction of the exercise price and taxes due. The reporting person received a net issuance of 2,804 common shares. ( 4 )The share appreciation right became exercisable in three equal annual installments; the first installment became exercisable on May 9, 2014 and the next two installments on May 9, 2015 and May 9, 2016 subject to the applicable award agreement. ( 5 )The share appreciation right became exercisable in three equal annual installments; the first installment became exercisable on February 4, 2015 and the next two installments on February 4, 2016 and February 4, 2017 subject to the applicable award agreement. ( 6 )The share appreciation right became exercisable in three equal annual installments, with the first installment becoming exercisable on May 13, 2015 and the next two installments on May 13, 2016 and May 13, 2017, subject to the applicable award agreement

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).

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