ARCH CAPITAL GROUP LTD. — Director's Dealing 2015

Aug 4, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ARCH CAPITAL GROUP LTD. (ACGL)
CIK: 0000947484
Period of Report: 2015-07-31

Reporting Person: Lyons Mark Donald (EVP,CFO & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-07-31	Common Shares, $.0033 par value per share	M	4000	$23.10	Acquired	231960	Direct
2015-07-31	Common Shares, $.0033 par value per share	M	5000	$19.2930	Acquired	236960	Direct
2015-07-31	Common Shares, $.0033 par value per share	M	4000	$25.01	Acquired	240960	Direct
2015-07-31	Common Shares, $.0033 par value per share	F	8399	$71.36	Disposed	232561	Direct
2015-07-31	Common Shares, $.0033 par value per share	S	5000	$71.4750	Disposed	227561	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-07-31	Share Appreciation Right	$23.10	M	4000	Disposed	2018-05-09	Common Shares, $.0033 par value per share (4000)	Direct
2015-07-31	Share Appreciation Right	$19.2930	M	5000	Disposed	2019-05-06	Common Shares, $.0033 par value per share (5000)	Direct
2015-07-31	Share Appreciation Right	$25.01	M	4000	Disposed	2020-05-05	Common Shares, $.0033 par value per share (4000)	Direct

Footnotes

F1: 86,722 of such amount will settle in Issuer's common shares upon the termination of the Reporting Person's employment, as specifically provided in the award agreements.

F2: A portion of the proceeds will be used to satisfy state and federal tax obligations.

F3: The share appreciation right became exercisable in three equal annual installments commencing May 9, 2009, subject to the applicable award agreement.

F4: The share appreciation right became exercisable in three equal annual installments commencing May 6, 2010, subject to the applicable award agreement.

F5: The share appreciation right became exercisable in three equal annual installments commencing May 5, 2011, subject to the applicable award agreement.