This excerpt taken from the PETM DEF 14A filed May 8, 2006.
4. SHARES SUBJECT TO THE PLAN.
(a) Subject to the provisions of Section 13 relating to adjustments upon changes in stock, the aggregate number of shares of common stock of the Company that may be issued pursuant to Stock Awards after the Effective Date shall not exceed twenty million six hundred eighty-three thousand (20,683,000) shares. For clarity, the limitation in this subsection 4(a) is a limitation in the number of shares of the Companys common stock that may be issued pursuant to the Plan. Accordingly, this subsection 4(a) does not limit the granting of Stock Awards except as provided in subsection 10(a). Furthermore, if a Stock Award (i) expires or otherwise terminates without having been exercised in full or (ii) is settled in cash (i.e., the holder of the Stock Award receives cash rather than stock), such expiration, termination or settlement shall not reduce (or otherwise offset) the number of shares of the Companys common stock that may be issued pursuant to the Plan.
(b) If any shares of common stock issued pursuant to a Stock Award are forfeited back to the Company because of the failure to meet a contingency or condition required to vest such shares in the Participant, then the shares which are forfeited shall revert to and again become available for issuance under the Plan. Also, any shares reacquired by the Company pursuant to subsection 12(e) or as consideration for the exercise of an Option shall again become available for issuance under the Plan. Notwithstanding the provisions of this subsection 4(b),
any such shares shall not be subsequently issued pursuant to the exercise of Incentive Stock Options.
(c) The stock subject to the Plan may be unissued shares or reacquired shares, bought on the market or otherwise.