Summary of ARCH CAPITAL GROUP LTD.

ITEM 5.07 Submission of Matters to a Vote of Security Holders.

Arch Capital Group Ltd.'s ("ACGL") annual meeting of shareholders was held on May 9, 2012. At the meeting, the holders of 124,306,478 common shares, which represents approximately 92 percent of the outstanding shares entitled to vote as of the record date of March 12, 2012, were represented in person or by proxy. Matters submitted to shareholders at the meeting and the voting results thereof were as follows:

Item 1.  The vote on the election of the four Class II directors to hold office
until the 2015 annual meeting of shareholders or until their successors are
elected and qualified.  The voting results were as follows:



                                                  BROKER NON-
NOMINEE                    FOR        WITHHELD       VOTES

Eric W. Doppstadt      113,308,906      314,672    10,682,900

Constantine Iordanou   112,313,895    1,309,683    10,682,900

James J. Meenaghan     112,233,840    1,389,738    10,682,900

John M. Pasquesi        81,872,295   31,751,283    10,682,900

Item 2.  The vote on the election of certain individuals as Designated Company
Directors of certain of ACGL's non-U.S. subsidiaries.  The voting results were
as follows:



                                                     BROKER NON-
DIRECTOR                       FOR       WITHHOLD       VOTES

Anthony Asquith            113,550,931      72,647    10,682,900

Edgardo Balois             113,552,231      71,347    10,682,900

William E. Beveridge       113,542,923      80,655    10,682,900

Dennis R. Brand            113,509,789     113,789    10,682,900

Peter Calleo               113,527,402      96,176    10,682,900

Knud Christensen           113,546,110      77,468    10,682,900

Paul Cole                  113,553,009      70,569    10,682,900

Graham B.R. Collis         108,924,601   4,698,977    10,682,900

William J. Cooney          113,552,939      70,639    10,682,900

Michael Feetham            113,551,795      71,783    10,682,900

Stephen Fogarty            113,551,951      71,627    10,682,900

Elizabeth Fullerton-Rome   113,523,060     100,518    10,682,900

Marc Grandisson            113,553,970      69,608    10,682,900

Michael A. Greene          113,548,081      75,497    10,682,900

John C.R. Hele          110,221,251   3,402,327   10,682,900

David W. Hipkin         113,547,238      76,340   10,682,900

W. Preston Hutchings    113,554,124      69,454   10,682,900

Constantine Iordanou    113,553,192      70,386   10,682,900

Wolbert H. Kamphuijs    113,551,901      71,677   10,682,900

Michael H. Kier         113,552,335      71,243   10,682,900

Lin Li-Williams         113,551,309      72,269   10,682,900

Mark D. Lyons           113,528,885      94,693   10,682,900

Adam Matteson           113,552,475      71,103   10,682,900

David McElroy           113,537,793      85,785   10,682,900

Rommel Mercado          113,552,251      71,327   10,682,900

Martin J. Nilsen        113,549,983      73,595   10,682,900

Mark Nolan              113,554,694      68,884   10,682,900

Nicolas Papadopoulo     113,545,990      77,588   10,682,900

Elizabeth Quinn         113,550,722      72,856   10,682,900

Maamoun Rajeh           113,552,575      71,003   10,682,900

John F. Rathgeber       113,550,093      73,485   10,682,900

Andrew Rippert          113,553,075      70,503   10,682,900

Paul S. Robotham        110,219,692   3,403,886   10,682,900

Carla Santamaria-Seña   113,553,358      70,220   10,682,900

Scott Schenker          113,553,680      69,898   10,682,900

Soren Scheuer           113,553,075      70,503   10,682,900

Budhi Singh             113,547,334      76,244   10,682,900

Helmut Sohler           113,547,957      75,621   10,682,900

Iwan Van Munster        113,552,975      70,603   10,682,900

Angus Watson            113,551,874      71,704   10,682,900

James R. Weatherstone   113,544,026      79,552   10,682,900

Item 3.  The vote on the proposal to approve the Arch Capital Group Ltd. 2012
Long Term Incentive and Share Award Plan.  The voting results were as follows:



                                      BROKER
    FOR        AGAINST    ABSTAIN   NON-VOTES

104,627,424   8,528,559   467,595   10,682,900

Item 4.  The vote on the ratification of the selection of PricewaterhouseCoopers
LLP as ACGL's independent registered public accounting firm for the year ending
December 31, 2012.  The voting results were as follows:



                                   BROKER
    FOR       AGAINST   ABSTAIN   NON-VOTES

123,800,037   466,094    40,347           0

Item 5.  The vote on a proposal on advisory vote on executive compensation
(say-on-pay).  The voting results were as follows:



                                    BROKER NON-
    FOR        AGAINST    ABSTAIN      VOTES

111,072,320   2,080,239   471,019    10,682,900

ITEM 8.01 Other Events.

Preferred Share Dividends. On May 9, 2012, the Board of Directors (the "Board") of ACGL declared dividends with respect to the outstanding13,000,000 shares of its 6.75% Non-Cumulative Preferred Shares, Series C, $0.01 per share (the "Series C Shares"), with a liquidation preference of $25.00 per share, as outlined below. All such dividends will be payable out of lawfully available funds for the payment of dividends under Bermuda law on June 30, 2012 to holders of record of the Series C Shares, as of June 15, 2012, unless determined otherwise by the Board or the Executive Committee of the Board on or prior to the applicable effective date.

           Effective Date
Series     for Declaration   Dividend Period    Dividend Amount     Rate Per Share
Series C           6/30/12    4/2/12-6/29/12   $       5,423,438   $      0.4171875