Sec Form 4 Filing - GRANDISSON MARC @ ARCH CAPITAL GROUP LTD. - 2019-08-19

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 GRANDISSON MARC 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 & CEO (Last) (First) (Middle) C/O ARCH CAPITAL GROUP LTD., WATERLOO HOUSE, 100 PITTS BAY ROAD 3. Date of Earliest Transaction (MM/DD/YY) 08/19/2019 (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 05/13/2019 G( 1 ) V 23,178 D $ 0 92,309 D Common Shares, $.0011 par value per share 05/13/2019 G( 1 ) V 23,178 A $ 0 1,780,314 I Owned with spouse Common Shares, $.0011 par value per share 05/15/2019 G( 1 ) V 10,011 D $ 0 82,298 D Common Shares, $.0011 par value per share 05/15/2019 G( 1 ) V 10,011 A $ 0 1,790,325 I Owned with spouse Common Shares, $.0011 par value per share 05/17/2019 G( 1 ) V 1,705 D $ 0 80,593 D Common Shares, $.0011 par value per share 05/17/2019 G( 1 ) V 1,705 A $ 0 1,792,030 I Owned with spouse Common Shares, $.0011 par value per share 06/10/2019 G( 2 ) V 26,100 D $ 0 1,765,930 I Owned with spouse Common Shares, $.0011 par value per share 06/10/2019 G( 2 ) V 26,100 A $ 0 28,080 I By spouse Common Shares, $.0011 par value per share 06/11/2019 G( 2 ) V 26,100 D $ 0 1,739,830 I Owned with spouse Common Shares, $.0011 par value per share 06/11/2019 G( 2 ) V 26,100 A $ 0 54,180 I By spouse Common Shares, $.0011 par value per share 06/12/2019 G( 2 ) V 26,100 D $ 0 1,713,730 I Owned with spouse Common Shares, $.0011 par value per share 06/12/2019 G( 2 ) V 26,100 A $ 0 80,280 I By spouse Common Shares, $.0011 par value per share 07/02/2019 G( 3 ) V 1,713,730 D $ 0 0 I Owned with spouse Common Shares, $.0011 par value per share 07/02/2019 G( 3 ) V 1,713,730 A $ 0 1,794,323 D Common Shares, $.0011 par value per share 08/19/2019 S 78,300 D $ 40.0503 ( 4 ) 1,980 I By spouse

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 (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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other GRANDISSON MARC C/O ARCH CAPITAL GROUP LTD. WATERLOO HOUSE, 100 PITTS BAY ROAD PEMBROKE, D0HM 08 President & CEO Signatures /s/ Marc Grandisson 08/21/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On May 13, May 15 and May 17, 2019 respectively, the reporting person gifted 23,178, 10,011 and 1,705 of his directly owned common shares, respectively, to an account which the reporting person owns with his spouse. ( 2 )On each of June 10, June 11 and June 12, 2019, respectively, the reporting person gifted 26,100 common shares beneficially owned indirectly with his spouse, to an account owned only by his spouse. ( 3 )On July 2, 2019, the reporting person gifted 1,713,730 common shares beneficially owned by the reporting person and his spouse to the reporting person's direct holdings. ( 4 )Represents a weighted average sale price; the sales prices range from $39.805 to $40.175. Upon request, the full information regarding the number of shares sold at each price increment will be provided to the Commission or to a security holder of the issuer.

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 c opies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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