shares of Tele-group’s common stock and a small amount of cash. As amended on June 5, 1998, the stock purchase agreements required Tele-group to use its best efforts to register its stock and ensure that the shares were freely tradeable by June 25, 1998. On February 10, 1999, Telegroup filed a voluntary Chapter 11 Bankruptcy petition, and on June 7,1999, appellants filed proofs des Telegroup’s alleged post-sale breach of contract, in claimants’ submission the claim does not arise from the purchase or sale of debtor’s stock, and therefore should not be subordinated under § 510(b). Telegroup responds that claims arising from the purchase or sale of a security under § 510(b) include claims predicated on post-issuance conduct. See In re Geneva Steel Co., 260 B.R. 517 (B.A.P. 10th Cir.2001) (<HOLDING>); In re Granite Partners, L.P., 208 B.R. 332,
holding that claims for breach of debtors agreement to use its best efforts to register its securities arise from the purchase of those securities for purposes of  510b holding that plaims for breach of a merger agreement arise from the purchase or sale of debtors securities holding that claims alleging that the debtor fraudulently induced the claimants to retain securities they had purchased from the debtor arise from the purchase or sale of those securities for purposes of  510b holding that claims for breach of the debtors agreement to use its best efforts to register its securities arise from the purchase of those securities for purposes of  510b holding that claims for erisa violations arose from the purchase or sale of debtors securities