time to time the parties hereto may enter into transactions in which one party ("Seller") agrees to transfer to the other ("Buyer") securities or other assets ("Securities") against the transfer of funds by Buyer, with a simultaneous agreement by Buyer to transfer to Seller such Securities at a date certain or on demand, against the transfer of funds by Seller. Each such transaction shall be referred to herein as a "Transaction" and, unless otherwise agreed in writing, shall be governed by this Agreement, includ- ing any supplemental terms or conditions contained in Annex I hereto and in any other annexes identified herein or therein as applicable hereunder.   2. Definitions (a) "Act of Insolvency", with respect to any party, (i) the commence- ment by such party as debtor of any case or proceeding under any bankruptcy, insolvency, reorganization, liquidation, moratorium, dissolution, delinquency or similar law, or such party seeking the appointment or election of a receiver, conservator, trustee, custo- dian or similar official for such party or any substantial part of its property, or the convening of any meeting of creditors for purposes of commencing any such case or proceeding or seeking such an appointment or election, (ii) the commencement of any such case or proceeding against such party, or another seeking such an appointment or election, or the filing against a party of an applica- tion for a protective decree under the provisions of the Securities Investor Protection Act of 1970, which (A) is consented to or not timely contested by such party, (B) results in the entry of an order for relief, such an appointment or election, the issuance of such a protective decree or the entry of an order having a similar effect, or (C) is not dismissed within 15 days, (iii) the making by such party of a general assignment for the benefit of creditors, or (iv) the admission in writing by such party of such partys inability to pay such partys debts as they become due;     (b) "Additional Purchased Securities", Securities provided by Seller to Buyer pursuant to Paragraph 4(a) hereof;   (c) "Buyers Margin Amount", with respect to any Transaction as of any date, the amount obtained by application of the Buyers Margin Per- centage to the Repurchase Price for such Transaction as of such date;   (d) "Buyers Margin Percentage", with respect to any Transaction as of any date, a percentage (which may be equal to the Sellers Margin