15 Pa.C.S. § 1532

Whenever any outstanding securities of a business corporation are converted into new shares or other securities or property by any merger, consolidation, reclassification, amendment of articles, division or otherwise, the plan or other instrument effecting the conversion may fix a period of not less than two years within which the outstanding securities must be surrendered for exchange. The plan or other instrument may provide that, in the event any outstanding securities are not surrendered for exchange within that time period, the shares, securities or property that would otherwise have been issued or delivered in exchange for the unsurrendered outstanding securities shall be sold and the net proceeds of the sale shall be held for the holders of the unsurrendered outstanding securities to be paid to them upon surrender of their outstanding securities. From and after the sale, the sole right of the holders of the unsurrendered outstanding securities shall be the right to collect the net sales proceeds held for their account.