X0303 4 2010-03-29 0000885725 BOSTON SCIENTIFIC CORP BSX 0000901430 ABELE JOHN E ONE BOSTON SCIENTIFIC PLACE NATICK MA 01760-1537 1 Common Stock 2010-03-30 4 J 0 100000 0 D 13443721 D Common Stock 2010-03-29 4 S 0 25000 7.0538 D 6116949 I By LLC Common Stock 2010-03-29 4 S 0 50000 7.0399 D 6066949 I By LLC Common Stock 400000 I By Spouse Common Stock 351098 I By Trust Forward Sale Contract 2010-03-30 4 J 0 100000 0 D 2010-03-30 2010-03-30 Common Stock 100000 0 D On March 30, 2010, the reporting person settled a prepaid variable forward sale contract entered into on March 30, 2009 with an unaffiliated commercial bank. At the initiation of the contract, the bank paid $577,836.79 to the reporting person. The contract obligated the reporting person to deliver to the bank up to 100,000 shares of the Issuer's common stock depending on market prices at maturity. If the market price per share at maturity was equal to or less than the floor price of $7.92 per share, the reporting person would deliver 100,000 shares to the bank. If the market price per share at maturity was greater than the floor price, the reporting person would deliver a fewer number of shares. The market price per share on March 30, 2010 was less than $7.92. Accordingly, the reporting person transferred to the bank 100,000 shares of the Issuer's common stock. Sales reported on this form were transacted pursuant to a 10b5-1 trading plan. The weighted average sales price is reported as stock sales were aggregated for reporting purposes. The per share transaction price ranged from $7.17 to $7.03. The reporting person will provide, upon request from an appropriate party, the per share sales volumes and prices. Common stock held by a limited liability company of which reporting person holds 100% membership interest. The weighted average sales price is reported as stock sales were aggregated for reporting purposes. The per share transaction price ranged from $7.11 to $6.98. The reporting person will provide, upon request from an appropriate party, the per share sales volumes and prices. Common stock held by the reporting person's wife. The reporting person disclaims beneficial ownership of these shares. Common stock held by trust for the benefit of the reporting person's child of which the reporting person is a trustee. The reporting person disclaims beneficial ownership of these shares. /s/ Lawrence J. Knopf, Attorney-in-fact 2010-03-31