This excerpt taken from the AAPL DEF 14A filed Jan 12, 2010.
SECTION 11. PROTECTION AGAINST DILUTION.
(a) Adjustments. Subject to Section 12, upon (or, as may be necessary to effect the adjustment, immediately prior to): any reclassification, recapitalization, stock split (including a stock split in the form of a stock dividend) or reverse stock split; any merger, combination, consolidation, or other reorganization; any spin-off, split-up, or similar extraordinary dividend distribution in respect of the Common Stock; or any exchange of Common Stock or other securities of the Company, or any similar, unusual or extraordinary corporate transaction in respect of the Common Stock; then the Committee shall equitably and proportionately adjust (1) the number and type of Shares of Common Stock (or other securities) that thereafter may be made the subject of Awards (including the specific Share limits, maximums and numbers of Shares set forth elsewhere in the Plan), (2) the number, amount and type of Shares of Common Stock (or other securities or property) subject to any outstanding Awards, (3) the grant, purchase, or Exercise Price of any outstanding Awards, and/or (4) the securities, cash or other property deliverable upon exercise or payment of any outstanding Awards, in each case to the extent necessary to preserve (but not increase) the level of incentives intended by the Plan and the then-outstanding Awards.
Unless otherwise expressly provided in the applicable Award Agreement, upon (or, as may be necessary to effect the adjustment, immediately prior to) any event or transaction described in the preceding paragraph or a sale of all or substantially all of the business or assets of the Company as an entirety, the Company shall equitably and proportionately adjust the Performance Goals applicable to any then-outstanding performance-based Awards to the extent necessary to preserve (but not increase) the level of incentives intended by the Plan and the then-outstanding performance-based Awards.
It is intended that, if possible, any adjustments contemplated by the preceding two paragraphs be made in a manner that satisfies applicable legal, tax (including, without limitation and as applicable in the circumstances, Section 424 of the Code, Section 409A of the Code and Section 162(m) of the Code) and accounting (so as to not trigger any charge to earnings with respect to such adjustment) requirements.
Without limiting the generality of Section 3, any good faith determination by the Committee as to whether an adjustment is required in the circumstances pursuant to this Section 11(a), and the extent and nature of any such adjustment, shall be conclusive and binding on all persons.
(b) Participant Rights. Except as provided in this Section 11, a Participant shall have no rights by reason of any issue by the Company of stock of any class or securities convertible into stock of any class, any subdivision or consolidation of shares of stock of any class, the payment of any stock dividend or any other increase or decrease in the number of shares of stock of any class. If by reason of an adjustment pursuant to this Section 11 a Participants Award covers additional or different shares of stock or securities, then such additional or different shares and the Award in respect thereof shall be subject to all of the terms, conditions and restrictions which were applicable to the Award and the Shares subject to the Award prior to such adjustment.