There's a section of his pay package that says:

  The Performance Hurdles will be adjusted by the Committee equitably and proportionately as determined by the Committee in a manner designed to preserve the economic opportunity provided under the Award, (a) higher to account for acquisition activity for which stock is provided as consideration; and (b) lower to account for a split-up, spin-off, dividend or other distribution (whether in the form of cash, shares, other securities, or other property) or divestiture activity, in each case, that could be considered material to the achievement of the Performance Hurdles, as applicable.