ALTERRA CAPITAL HOLDINGS Ltd·4

May 3, 5:09 PM ET

ALTERRA CAPITAL HOLDINGS Ltd 4

4 · ALTERRA CAPITAL HOLDINGS Ltd · Filed May 3, 2013

Insider Transaction Report

Form 4
Period: 2013-05-01
Transactions
  • Disposition to Issuer

    Options (right to buy shares)

    2013-05-012,0000 total
    Exercise: $19.45From: 2010-06-16Exp: 2016-04-30Common Shares (2,000 underlying)
  • Disposition to Issuer

    Common Shares

    2013-05-0117,3220 total
Footnotes (2)
  • [F1]Disposed of pursuant to the Agreement and Plan of Merger, dated as of December 18, 2012 (the "Merger Agreement") between Alterra Capital Holdings Ltd. (the "Issuer"), Markel Corporation ("Markel") and Commonwealth Merger Subsidiary Limited in exchange on a per share basis for (i) the amount of shares of Markel common stock equal to the number of shares of Issuer common stock multiplied by 0.04315 plus (ii) $10.00 in cash, without interest, together with any cash paid in lieu of fractional shares relating to each award and form of ownership. Of the shares of common stock of the Issuer exchanged, 14,000 shares represented restricted stock that automatically vested upon the closing of the transactions contemplated by the Merger Agreement (the "Closing").
  • [F2]Disposed of pursuant to the Merger Agreement in exchange for options exercisable for shares of Markel common stock (equal in number to the number of shares of Issuer common stock subject to the options multiplied by the Incentive Exchange Ratio) at an exercise price equal to the exercise price as of immediately prior to the Closing divided by the Incentive Exchange Ratio, together with any cash paid in lieu of fractional shares. The Incentive Exchange Ratio is (i) 0.04315 plus (ii) (a) $10.00 divided by (b) the volume weighted average share price per share of Markel common stock for the five consecutive trading days immediately preceding the second trading day before the closing date.

Documents

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