X0303 4 2009-11-06 0001180145 Cardiovascular Systems Inc CSII 0001358186 Blackey Brent G 651 CAMPUS DRIVE ST. PAUL MN 55112 1 0 0 0 Common Stock 2009-11-06 4 P 0 6700 4.10 A 13904 D Common Stock 2009-11-06 4 P 0 200 4.08 A 14104 D Common Stock 2009-11-06 4 P 0 100 4.07 A 14204 D Common Stock 2009-11-06 4 P 0 3000 4.20 A 17204 D Stock Option (right to buy) 7.90 2017-10-08 Common Stock 38820 38820 D Stock Option (right to buy) 7.90 2007-10-09 2017-10-08 Common Stock 6470 6470 D Warrant 8.83 2009-02-25 2014-02-24 Common Stock 2739 2739 D Restricted Stock Units Common Stock 5714 5714 D Restricted Stock Units Common Stock 11628 11628 D Exercisable: 12,940 on 10/9/08, 10/9/09 and 10/9/10. Each restricted stock unit represents the right to receive a payment from CSI equal in value to the market price per share of CSI common stock on the date of payment and shall be payable in cash beginning six months following the termination of each director's board membership. Each restricted stock unit represents the right to receive a payment from CSI equal in value to the market price per share of CSI common stock on the date of payment, and shall be payable in cash beginning six months following the termination of each director's board membership; provided, however, that the restricted stock units vest in equal quarterly amounts of 2,907 on each of 9/30/2009, 12/31/2009, 3/31/2010 and 6/30/2010. /s/ John R. Remakel as Attorney-in-Fact for Brent G. Blackey pursuant to Power of Attorney previously filed. 2009-11-06