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Filing Details

Accession Number:: 0000914190-10-000681
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-11-16 16:16:31
Reporting Period:: 2010-11-12

Filing Date:: 2010-11-16
Accepted Time:: 2010-11-16 16:16:31
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1180145	Cardiovascular Systems Inc	CSII	Surgical & Medical Instruments & Apparatus (3841)	411698056

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1198920	D Glen Nelson	651 Campus Drive St. Paul MN 55112		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-11-12	11,151	$8.68	252,853	No	4	P	Direct
Common Stock	Acquisiton	2010-11-15	7,000	$8.79	259,853	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	246,524	Indirect	Held by LLC

Reported Derivative Holdings

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Sec. Name	Sec. Type	Price	Date	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Stock Option (right to buy)	$12.37		2015-11-30	9,705	9,705	Direct
Common Stock	Stock Option (right to buy)	$9.28		2014-11-30	6,470	6,470	Direct
Common Stock	Stock Option (right to buy)	$8.83		2016-12-18	12,940	12,940	Direct
Common Stock	Stock Option (right to buy)	$7.90		2017-10-08	4,322	4,322	Direct
Common Stock	Stock Option (right to buy)	$11.38		2017-11-12	15,087	15,087	Direct
Common Stock	Warrant	$8.78	2006-07-19	2011-07-19	12,131	12,131	Indirect
Common Stock	Warrant	$9.28	2008-09-12	2013-09-12	53,916	53,916	Indirect
Common Stock	Warrant	$8.83	2009-02-25	2014-02-24	56,558	56,558	Indirect
Common Stock	Restricted Stock Units	$0.00			5,714	5,714	Direct
Common Stock	Restricted Stock Units	$0.00			11,628	11,628	Direct
Common Stock	Restricted Stock Units	$0.00			21,739	21,739	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2015-11-30	9,705	9,705	Direct
2014-11-30	6,470	6,470	Direct
2016-12-18	12,940	12,940	Direct
2017-10-08	4,322	4,322	Direct
2017-11-12	15,087	15,087	Direct
2011-07-19	12,131	12,131	Indirect
2013-09-12	53,916	53,916	Indirect
2014-02-24	56,558	56,558	Indirect
	5,714	5,714	Direct
	11,628	11,628	Direct
	21,739	21,739	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.58 to $8.74 inclusive. The reporting person undertakes to provide Cardiovascular Systems, Inc., any security holder of Cardiovascular Systems, Inc. or the staff of the Securities and Exchange Comission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $8.58 to $8.95 inclusive. The reporting person undertakes to provide Cardiovascular Systems, Inc., any security holder of Cardiovascular Systems, Inc. or the staff of the Securities and Exchange Comission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.
Shares are held by GDN Holdings, LLC, of which Dr. Nelson is the sole owner.
Fully exercisable.
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 shares of the Company's Common Stock 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 or shares of the Company's Common Stock beginning six months following the termination of each director's board membership; provided, however, that the restricted stock units vest in quarterly amounts of 5,435 on each of 9/30/2010, 12/31/2010, and 3/31/2011 and 5,434 on 6/30/2011.