Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  FRIEDMAN JOHN H
2. Date of Event Requiring Statement (Month/Day/Year)
02/25/2009
3. Issuer Name and Ticker or Trading Symbol
Cardiovascular Systems Inc [CSII]
(Last)
(First)
(Middle)
651 CAMPUS DRIVE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
02/25/2009
(Street)

ST. PAUL, MN 55112
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 398,679
I
Easton Hunt Capital Partners, L.P. (1)
Common Stock 398,679
I
Easton Capital Partners, LP (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Warrant (Right to Buy) 07/19/2006 07/19/2011 Common Stock 56,611 $ 8.78 I Easton Hunt Capital Partners, L.P. (2)
Warrant (Right to Buy) 09/12/2008 09/12/2013 Common Stock 107,833 $ 9.28 I Easton Hunt Capital Partners, L.P. (2)
Warrant (Right to Buy) 02/25/2009 02/24/2014 Common Stock 151,617 $ 8.83 I Easton Hunt Capital Partners, L.P. (2)
Warrant (Right to Buy) 07/19/2006 07/19/2011 Common Stock 56,611 $ 8.78 I Easton Capital Partners, LP (2)
Warrant (Right to Buy) 02/25/2009 02/24/2014 Common Stock 151,617 $ 8.83 I Easton Capital Partners, LP (2)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
FRIEDMAN JOHN H
651 CAMPUS DRIVE
ST. PAUL, MN 55112
  X      

Signatures

/s/ Robert K. Ranum as Attorney-in-Fact for John H. Friedman pursuant to Power of Attorney previously filed. 09/09/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) This amendment adds shares held by Easton Hunt Capital Partners, L.P. and Easton Capital Partners, LP (collectively, "Easton") that were previously not included as being indirectly beneficially owned by Mr. Friedman on his original Form 3 filed on February 25, 2009. Investment decisions of Easton Hunt Capital Partners, L.P. are made by EHC GP, LP through its General Partner, EHC, Inc. Mr. Friedman is the President and Chief Executive Officer of EHC, Inc. Investment decisions of Easton Capital Partners, LP are made by its General Partner, ECP GP, LLC, through its manager ECP GP, Inc. Mr. Friedman is the President and Chief Executive Officer of EHC, Inc. and ECP GP, Inc. Mr. Friedman shares voting and investment power of the shares owned by Easton. Mr. Friedman disclaims beneficial ownership of securities held by Easton except to the extent of his pecuniary interest therein.
(2) This amendment adds warrants held by Easton that were previously not reported as being indirectly beneficially owned by Mr. Friedman on his original Form 3 filed on February 25, 2009. Mr. Friedman disclaims beneficial ownership of securities held by Easton except to the extent of his pecuniary interest therein.

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