definiens: means ( i ) the Series G Shares, ( ii ) the shares ofCommon Stock issued or issuable upon conversion of the Series G Shares, ( iii ) any shares of capital stock of the Corporationacquired by the Investors pursuant to the Investor Rights Agreement, and ( iv ) any other shares of capital stock of theCorporation issued in respect of such shares ( as a result of stock splits, stock dividends, reclassifications, recapitalizations, orsimilar events ) ; provided, however, that shares of Common Stock which are Restricted Shares shall cease to be RestrictedShares ( x ) upon any sale pursuant to a registration statement under the Securities Act, Section 4(1 ) of the Securities Act orRule 144 under the Securities Act or ( y ) at such time as they become eligible for sale under Rule 144(k ) under the SecuritiesAct