ARCH CAPITAL GROUP LTD. — Director's Dealing 2015

May 27, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ARCH CAPITAL GROUP LTD. (ACGL)
CIK: 0000947484
Period of Report: 2015-05-22

Reporting Person: PASQUESI JOHN M (Director, Vice Chairman)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-22	Common Shares, $.0033 par value per share	G	12698	—	Disposed	670106	Indirect
2015-05-22	Common Shares, $.0033 par value per share	G	15000	—	Disposed	41052	Indirect
2015-05-22	Common Shares, $.0033 par value per share	S	6237	$64.6414	Disposed	52515	Indirect
2015-05-22	Common Shares, $.0033 par value per share	S	56700	$64.6414	Disposed	477412	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Shares, $.0033 par value per share	56052	Indirect
Common Shares, $.0033 par value per share	509227	Indirect
Common Shares, $.0033 par value per share	1201	Direct

Footnotes

F1: The security holder is Otter Capital LLC, for which the reporting person serves as managing member. All indicated securities are included because of his affiliation with Otter Capital LLC.

F2: The common shares are held by a revocable trust. The reporting person and his spouse are the trustees and the beneficiaries.

F3: Otter Capital LLC contributed 12,698 common shares of the issuer to the a revocable trust, for which the reporting person and his spouse are the trustees and the beneficiaries.

F4: Includes 12,698 common shares of the issuer that were previously reported as indirectly owned by Otter Capital LLC.

F5: Such common shares were gifted to charity; 12,698 of such shares were previously held by Otter Capital and were contribted to the reporting person's trust. See FNs 3 and 4.

F6: Represents a weighted average sale price; the sales prices ranged from $64.435 to $64.96. Upon request, the full sale information regarding the number of shares sold at each price increment will be provided to the Commission or a security holder of the issuer.