ARCH CAPITAL GROUP LTD. — Director's Dealing 2021

May 21, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ARCH CAPITAL GROUP LTD. (ACGL)
CIK: 0000947484
Period of Report: 2021-05-18

Reporting Person: PETRILLO LOUIS T (Officer of Subsidiary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-18	Common Shares, $.0011 par value per share	M	36000	$12.86	Acquired	160187	Direct
2021-05-18	Common Shares, $.0011 par value per share	F	23511	$40.17	Disposed	136676	Direct
2021-05-20	Common Shares, $.0011 par value per share	S	30360	$40.2056	Disposed	106316	Direct
2021-05-20	Common Shares, $.0011 par value per share	G	154	—	Disposed	106162	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-18	Share Appreciation Right	$12.86	M	36000	Disposed	2022-05-09	Common Shares, $.0011 par value per share (36000)	Direct

Footnotes

F1: The share appreciation right became exercisable in three equal annual installments; the first installment became exercisable on May 9, 2013 and the next two installments on May 9, 2014 and May 9, 2015, subject to the applicable award agreement.

F2: In connection with the exercise of the share appreciation rights award described in Table II, 23,511 common shares were disposed of in satisfaction of the exercise price and taxes. The reporting person received a net issuance of 12,489 common shares.

F3: Represents a weighted average sale price; the sales prices range from $40.00 to $40.37. 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.