EX-4.12






Exhibit 4.12




CARDIOVASCULAR SYSTEMS, INC.




AGREEMENT TO CONVERT




AND

AMENDMENT TO THE INVESTOR’S RIGHTS AGREEMENT




     THIS AGREEMENT TO CONVERT AND AMENDMENT TO THE INVESTOR’S RIGHTS AGREEMENT (this
“Agreement”) is executed as of November 3, 2008 by Cardiovascular Systems, Inc., a
Minnesota corporation (the “Company”), and the holders of the outstanding shares of Series
A Convertible Preferred Stock, Series A-1 Convertible Preferred Stock and Series B Convertible
Preferred Stock of the Company (collectively, the “Preferred Stock;” each holder, a
“Preferred Holder,” and collectively, the “Preferred Holders”) who are signatories
hereto.



     WHEREAS, a special committee of the Company’s non-employee directors (the “Special
Committee”) and the Company’s Board of Directors have each unanimously determined it is in the
Company’s best interest to enter into an Agreement and Plan of Merger and Reorganization, dated as
of November 3, 2008 (the “Merger Agreement”) with Replidyne, Inc. (“Replidyne”) and
Responder Merger Sub, Inc., a wholly-owned subsidiary of Replidyne, pursuant to which the Company
will become a wholly-owned subsidiary of Replidyne and all of the Company’s outstanding shares will
be converted into shares of Replidyne common stock (the transactions contemplated by the Merger
Agreement shall be referred to as the “Merger”);



     WHEREAS, Section 4O of Exhibit A to the Amended and Restated Articles of Incorporation of the
Company (the “Articles”) provides that all outstanding shares of Preferred Stock shall
automatically convert to shares of common stock of the Company (“Common Stock”) if (i) the
holders of a majority of the Preferred Stock, such majority to include the Preferred Stock held by
Easton and Maverick (each as defined in the Articles), and (ii) the two Preferred Stock Directors
(as defined in the Articles), consent to such conversion;



     WHEREAS, the Merger may constitute a deemed Liquidation Event pursuant to the terms of the
Preferred Stock under the Articles and result in liquidation and preference payments due to the
holders of the Preferred Stock as determined under Section 3 of Exhibit A to the Articles, and the
Special Committee and Board of Directors of the Company desire that the holders of the Preferred
Stock consent to a different allocation of the consideration payable pursuant to the Merger
Agreement;



     WHEREAS, the terms of the Preferred Stock provide that the holders of a majority of the
Preferred Stock, such majority to include the Preferred Stock held by Easton and Maverick, may
consent in writing to an allocation of the consideration payable pursuant to the Merger Agreement
that is different from that required by Section 3 of Exhibit A to the Company’s Articles;



     WHEREAS, in consideration for the Conversion (as defined below) and the waiver of any
liquidation and preference payments that may become due under the Articles as a result of the
Merger, the Company has agreed to issue to the holders of Preferred Stock warrants to



 









 




purchase an aggregate of 3,500,000 shares of Company Common Stock at an exercise price of
$5.71 per share, pro rata to each holder based on their percentage of the outstanding Preferred
Stock on an as-converted basis (the “Warrants”), with such Warrants to be issued
immediately following the effectiveness of the Conversion but prior to the Effective Time (as
defined in the Merger Agreement) of the Merger;




     WHEREAS, the Company and the Preferred Holders wish to provide that the Company’s Investor’s
Rights Agreement, dated July 19, 2006, as amended from time-to-time (the “Investor’s Rights
Agreement”), will terminate upon the consummation of the Merger;



     WHEREAS, the terms of the Investor’s Rights Agreement provide that it may be amended in whole
or in part by (i) the Board of Directors of the Company, and (ii) the holders of at least 662/3% of
the combined voting power of the outstanding shares of Preferred Stock, including the shares held
by Easton;



     WHEREAS, during the due diligence review of the Company’s records in connection with the
Merger, it has come to the Company’s attention that a transfer of shares made between Larry
Lehmkuhl and GDN Holdings, LLC on December 7, 2007 was subject to certain restrictions contained in
the Company’s Stockholders Agreement, dated July 19, 2006, as amended from time-to-time (the
“Stockholders Agreement”);



     WHEREAS, the Company desires to obtain a waiver of the provisions of the Stockholders
Agreement from the Investors (as that term is defined within the Stockholders Agreement) that
relate to the December 7, 2007 share transfer between Larry Lehmkuhl and GDN Holdings, LLC;



     WHEREAS, the terms of the Stockholders Agreement provide that any provision of the
Stockholders Agreement may be waived by an instrument in writing executed and delivered by
Investors holding at least two-thirds in interest of the Common Stock (including shares of Common
Stock into which any shares of Preference Stock are convertible) then held or deemed to be held by
all Investors;



     WHEREAS, the Preferred Holders executing this Consent hold at least 662/3% of the combined
voting power of the outstanding shares of Preferred Stock and include the Preferred Stock held by
Easton and Maverick and constitute the Investors holding at least two-thirds in interest of the
Common Stock, as required by the Stockholders Agreement;



     WHEREAS, each of the Company’s Preferred Stock Directors has approved the Conversion;



     WHEREAS, the Board of Directors of the Company has approved the Termination (as defined
below), the issuance of the Warrants and the other terms and conditions of this Agreement; and



 









 





     WHEREAS, the Merger Agreement provides that, concurrently with the execution and delivery of
the Merger Agreement by the parties thereto, the Company and the Preferred Holders will deliver
this Agreement.



     NOW THEREFORE, in consideration of the above recitals, the Company and the Preferred Holders
signatory hereto hereby consent and agree as follows:



     1. In consideration of the foregoing and in accordance with Section 4O of Exhibit A of the
Articles, the Preferred Holders hereby consent to the automatic conversion of all outstanding
shares of Preferred Stock into shares of the Company’s Common Stock, such conversion to be
effective as of immediately prior to the Effective Time of the Merger (the “Conversion”).



     2. Immediately following the Conversion (but prior to the Effective Time of the Merger) and in
accordance with Section 3G of Exhibit A of the Articles, the Company shall issue, and the Preferred
Holders hereby consent to the issuance of, the Warrants in lieu of any and all liquidation and
preference payments under Sections 3A and 3B of the Articles that may become due from the Company
to the holders of the Preferred Stock in the event the Merger constitutes a deemed Liquidation
Event pursuant to the Articles.



     3. The Company and the Preferred Holders hereby amend the Investor’s Rights Agreement to add
the following Section 19 (the “Termination”):




19. Termination. This Agreement, and the respective rights and obligations of the
parties hereto, shall be automatically terminated upon the closing of the
transactions contemplated by that certain Agreement and Plan of Merger and
Reorganization, dated November 3, 2008, between the Replidyne, Inc., Responder
Merger Sub, Inc., a wholly-owned subsidiary of Replidyne, Inc., and the Company.



     4. The Preferred Holders hereby waive all provisions of the Stockholders Agreement (including,
without limitation, notice provisions) that relate to the transfer of shares made between Larry
Lehmkuhl and GDN Holdings, LLC on December 7, 2007.



     5. Excluding the provisions of paragraph 4, this Agreement shall terminate and be of no force
or effect if the Merger Agreement is terminated in accordance with the provisions thereof.



     6. This Agreement shall be governed by and construed under the laws of the State of Minnesota
in all respects as such laws are applied to agreements among Minnesota residents entered into and
performed entirely within Minnesota, without giving effect to conflict of law principles thereof.



     7. This Agreement and the other documents delivered pursuant hereto constitute the full and
entire understanding and agreement between the parties with regard to the subjects hereof.



 









 





     8. In the event one or more of the provisions of this Agreement should, for any reason, be
held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality or
unenforceability shall not affect any other provisions of this Agreement, and this Agreement shall
be construed as if such invalid, illegal or unenforceable provision had never been contained
herein.



     9. This Agreement may be executed in any number of counterparts, each of which shall be an
original, but all of which together shall constitute one instrument.



[Remainder of page intentionally left blank]




 









 





     IN WITNESS WHEREOF, the undersigned or each of their respective duly authorized officers or
representatives have set their hands hereunto effective upon the date first written above.



	 	 	 	 	 	 	 
	 	 	CARDIOVASCULAR SYSTEMS, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ David Martin
 

Name: David Martin
	 	 
	 

	 	 	 	Title: Chief Executive Officer	 	 






 









 







     IN WITNESS WHEREOF, the undersigned or each of their respective duly authorized officers or
representatives have set their hands hereunto effective upon the date first written above.



	 	 	 	 	 	 	 	 	 	 	 
	EASTON HUNT CAPITAL PARTNERS, L.P.	 	 	 	MAVERICK FUND II, LTD.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	EHC GP, L.P., its General Partner
	 	 	 	By:
	 	Maverick Capital, Ltd.	 	 
	By:

	 	EHC GP, Inc., its General Partner
	 	 	 	 	 	Its Investment Advisor	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Charles B. Hughes
 

Name: Charles B. Hughes
	 	 	 	By:
	 	/s/ John T. McCafferty
 

Name: John T. McCafferty
	 	 
	 

	 	Title: Vice President
	 	 	 	 	 	Title: Limited Partner and General Counsel	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	EASTON CAPITAL PARTNERS, LP	 	 	 	MITSUI & CO. VENTURE PARTNERS II, L.P.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	ECP GP, LLC, its General Partner
	 	 	 	By:
	 	Mitsui & Co. Venture Partners, Inc.	 	 
	By:

	 	ECP GP, Inc., its Manager
	 	 	 	 	 	Its General Partner	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Charles B. Hughes
 

Name: Charles B. Hughes
	 	 	 	By:
	 	/s/ Taro Inaba
 

Name: Taro Inaba
	 	 
	 

	 	Title: Vice President
	 	 	 	 	 	Title: President & CEO	 	 






	 	 	 	 	 	 	 	 	 	 	 
	MAVERICK FUND, L.D.C.	 	 	 	ITX INTERNATIONAL EQUITY CORP.	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	Maverick Capital, Ltd.


Its Investment Advisor	 	 	 	By:
	 	/s/ Takehito Jimbo
 

Name: Takehito Jimbo
	 	 
	 

	 	 
	 	 	 	 	 	Title: President/CEO	 	 





	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ John T. McCafferty
 

	 	 	 	 	 	 	 	  
	 

	 	Name: John T. McCafferty	 	 	 	 	 	 	 	 
	 

	 	Title: Limited Partner and General
Counsel	 	 	 	 	 	 	 	 
	 	 	 	 	 	WHITEBOX HEDGED HIGH YIELD PARTNERS, LP	 	 






	 	 	 	 	 	 	 	 	 	 	 
	MAVERICK FUND USA, LTD.

	 	 	By:
	 	/s/ Nicholas Swenson
	 	 
	 

	 	 	Name:
	 	 

Nicholas Swenson
	 	 
	 

	 	 	Title:
	 	Fund Manager	 	 
	By:

	 	Maverick Capital, Ltd.	 	 	 	 	 	 	 	 
	 
	 	Its Investment Advisor	 	 	 	 	 	 	 	 
	 

	 	 	WELLSPRING CAPITAL	 	 
	By:
	 	/s/ John T. McCafferty	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	 	 	 
	 

	 	Name: John T. McCafferty
Title: Limited Partner and
General Counsel	 	 	 	By:
	 	/s/ George White
 

Name: George White
	 	 
	 

	 	 	 	 	 	 	 	Title: Managing Member of G.P.	 	 









	 	 	 	 	 	 	 	 	 	 	 
	WELLSPRING MANAGEMENT, LLC	 	 	 	GDN HOLDINGS LLC	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ George White
 

Name: George White
	 	 	 	By:
	 	/s/ Glen D. Nelson
 

Name: Glen D. Nelson
	 	 
	 

	 	Title: Managing Member
	 	 	 	 	 	Title: Governor and Chief Managing Member