Document:

Form of Restricted Stock Award Agreement

 Exhibit 10.5 
 FORM OF 
 RESTRICTED STOCK AWARD AGREEMENT 
 UNDER THE 
 AMENDED AND RESTATED
2002 STOCK INCENTIVE PLAN 
  

			
	Associate Name:	  	[Participant Name]
		
	Number of Restricted Shares Subject to Award:	  	[Number of Shares Granted]
		
	Date of Award Grant:	  	[Grant Date]

 CheckFree Corporation, a Delaware corporation (the “Company”), hereby grants to the individual whose
name appears above (the “Associate”) a Restricted Stock Award (the “Award”) of shares of its Common Stock, $0.01 par value per share (the “Restricted Shares”) to be issued to Associate as set forth below, subject to all
of the terms and conditions set forth in this Restricted Stock Award Agreement (this “Agreement”) and the Company’s Amended and Restated 2002 Stock Incentive Plan (the “Plan”). All terms and conditions set forth in Annex I
hereto and the Plan are deemed to be incorporated herein in their entirety. 
 1. Vesting Provisions. 
 (a) Provided that the Associate is employed by the Company on such dates, the Associate’s
Restricted Shares will be issued (subject to tax withholding) and become vested in five equal installments with 20% of the shares vesting on the 1st
anniversary of the grant, 20% on the 2nd anniversary of the grant, 20% on the 3rd anniversary of the grant, 20% on the 4th anniversary of the grant, and 20% on the 5th anniversary of the grant. 
 If the application of
this paragraph would result in Associate vesting in a fraction of a share of Common Stock, such fractional share of Common Stock will be rounded down to the next whole share, in which case adjustments may be made to future vesting increments to
prevent exceeding the total number of Restricted Shares subject to the Award, as provided above. 
 (b) If the Associate’s employment or
service with the Company terminates for any reason before all of Associate’s Restricted Shares have become vested under this Award, the Associate’s Restricted Shares that have not been issued and have not vested shall be forfeited on and
after the effective date of the termination. 
 (c) Notwithstanding the foregoing, if the Associate terminates employment or service with the
Company because he or she has been employed by an Affiliate or Subsidiary of the Company, the Associate shall continue to vest in the Restricted Shares in accordance with the vesting schedule set forth in paragraph 1(a) above, and Associate’s
cessation of employment or service with the Company shall not be deemed a forfeiture event hereunder. 
 (d) The Compensation Committee will
have the right to determine, in its sole discretion, how an Associate’s leave of absence will affect the terms of this Award, including the vesting and issuance of Restricted Shares hereunder. 

 (e) The Company will not have any further obligations to the Associate under this Award if the
Associate’s Restricted Shares are forfeited as provided herein. 
 2. General 
 By signing below, you agree that this award is governed by this Agreement, and by the terms and conditions contained in the Plan, as amended from time to
time and incorporated into this Agreement by reference. A copy of the Plan is available upon request by contacting the Human Resources Department at the Company’s executive offices. 
  

							
	CheckFree Corporation	 		 	
				
	By:	 	  
	 		 	 _______________

	Its:	 	  
	 		 	Date
		 		 		 	
	Associate	 		 	
			
	 	 		 	 _______________

	Associate	 		 	Date

  

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 ANNEX I TO RESTRICTED STOCK AWARD AGREEMENT 
 TERMS AND CONDITIONS OF RESTRICTED STOCK AWARD 
 1. Issuance of
Restricted Stock. The Company, or its transfer agent, will issue and deliver the vested portion of the Restricted Shares to the Associate as soon as practicable after the Restricted Shares become vested, subject to payment of the applicable
withholding tax liability as set forth below. If the Associate dies before the Company has distributed any portion of the vested Restricted Shares, the Company will transfer any vested Restricted Shares in accordance with the Associate’s will
or, if the Associate did not have a will, the vested Restricted Shares will be distributed in accordance with the laws of descent and distribution. 
 2. Withholding Taxes. Notwithstanding anything in this Agreement to the contrary, no certificate representing Restricted Stock shall be delivered unless and until Associate shall have delivered to the Company or its designated
Affiliate, the full amount of any federal, state or local income and other withholding taxes. The Company is permitted to withhold a number of shares of Restricted Stock equal in value to Associate’s withholding obligations and to pay this
amount to the Internal Revenue Service on Associate’s behalf. 
 3. Non-transferability of Award. Until the Restricted
Shares have vested as set forth on page 1 of this Agreement, the Restricted Shares granted herein and the rights and privileges conferred hereby may not be sold, transferred, pledged, assigned, or otherwise alienated or hypothecated (by operation of
law or otherwise). Upon any attempt to transfer, assign, pledge, hypothecate or otherwise dispose of such award, or of any right or privilege conferred hereby, contrary to the provisions of the Plan or of this Agreement, or upon any attempted sale
under any execution, attachment or similar process upon the rights and privileges conferred hereby, such award and the rights and privileges conferred hereby shall immediately become null and void.  
 4. Conditions to Issuance of Shares. The shares of stock deliverable to Associate may be either previously authorized but unissued shares or
issued shares which have been reacquired by the Company. The Company shall not be required to issue any certificate or certificates for shares of stock hereunder prior to fulfillment of all of the following conditions: (a) the admission of such
shares to listing on all stock exchanges on which such class of stock is then listed; (b) the completion of any registration or other qualification of such shares under any State or Federal law or under the rulings or regulations of the
Securities and Exchange Commission or any other governmental regulatory body, which the Compensation Committee (the “Committee”) shall, in its absolute discretion, deem necessary or advisable; (c) the obtaining of any approval or
other clearance from any State or Federal governmental agency, which the Committee shall, in its absolute discretion, determine to be necessary or advisable; and (d) the lapse of such reasonable period of time following the date of grant of the
Restricted Shares as the Committee may establish from time to time for reasons of administrative convenience. 
 5. No Rights as
Stockholder. Until the Restricted Shares have vested and have been issued, Associate shall not have any rights of a stockholder of the Company with respect to the Restricted Shares, including any right to vote such Restricted Shares and to
receive dividends and distributions on such Restricted Shares. 
 6. Plan Governs. This Agreement is subject to all the terms and
provisions of the Plan. In the event of a conflict between one or more provisions of this Agreement and one or more provisions of the Plan, the provisions of the Plan shall govern. Undefined capitalized terms used in this Agreement shall have the
meanings set forth in the Plan. 

 7. No Right to Continued Employment. Associate understands and agrees that this Agreement does not
impact in any way the right of the Company, or any Affiliate of the Company employing Associate, to terminate or change the terms of the employment of Associate at any time for any reason whatsoever, with or without cause. Associate understands and
agrees that his or her employment with the Company or an Affiliate is on an “at-will” basis only. 
 8. Addresses for
Notices. Any notice to be given to the Company under the terms of this Agreement shall be addressed to the Company, in care of the Compensation Manager, at CheckFree Corporation, 4411 East Jones Bridge Road, Norcross, Georgia 30092, or at such
other address as the Company may hereafter designate in writing. Any notice to be given to Associate shall be addressed to Associate at the address set forth on page 1 of this Agreement, or at such other address for Associate maintained on the books
and records of the Company. 
 10. Captions. Captions provided herein are for convenience only and are not to serve as a basis for
interpretation or construction of this Agreement. 
 11. Agreement Severable. In the event that any provision in this Agreement shall
be held invalid or unenforceable, such provision shall be severable from, and such invalidity or unenforceability shall not be construed to have any effect on, the remaining provisions of this Notice and Agreement.Voting Agreement

 Exhibit 4.1 
 VOTING AGREEMENT 
 VOTING AGREEMENT, dated as of December 3, 2007 (this
“Agreement”), by and among Oracle Healthcare Acquisition Corp., a Delaware corporation (“Parent”), and the Persons (as hereinafter defined) set forth on Schedule I attached hereto (collectively, the
“Securityholders” and, each, a “Securityholder”). 
 W I T N E S S E T H: 
 WHEREAS, simultaneously with the execution and delivery of this Agreement, Parent, PTI Acquisition Sub, Inc., a Delaware corporation and a wholly owned
subsidiary of Parent (“Merger Sub”), and Precision Therapeutics, Inc., a Delaware corporation (the “Company”), are entering into an Agreement and Plan of Merger, dated as of the date hereof (as amended from time to
time as provided therein, the “Merger Agreement”), providing for, among other things, (i) the merger of Merger Sub with and into the Company, with the Company continuing as the surviving corporation and wholly owned subsidiary
of Parent (the “Merger”), and (ii) prior to the Effective Time (as defined in the Merger Agreement) of such Merger the conversion (the “Conversion”) of all outstanding shares of Series A1 Preferred Stock, par
value $0.001 per share (the “Series A1 Preferred Stock”), Series A3 Preferred Stock, par value $0.001 per share (the “Series A3 Preferred Stock” and, together with the Series A1 Preferred Stock, the “Series
A Preferred Stock”), and Series B Preferred Stock, par value $0.001 per share (together with the Series A Preferred Stock, the “Company Preferred Stock”), of the Company and all outstanding Bridge Notes (as defined in the
Merger Agreement) into common stock, par value $0.001 per share (together with the Company Preferred Stock, the “Company Stock”), of the Company; 
 WHEREAS, each Securityholder Beneficially Owns (as hereinafter defined) the number of shares of Company Stock (in the classes, series and forms) and Bridge Notes in the aggregate principal amount set forth opposite
such Securityholder’s name on Schedule I attached hereto; 
 WHEREAS, after considering the best interests of the Company
and its stockholders, reviewing the Merger Agreement, and weighing the possibilities of acquisition proposals from parties other than Parent, each Securityholder has determined that the Conversion and the Merger are advantageous to the Company and
its stockholders; and 
 WHEREAS, as a condition and inducement to the willingness of Parent and Merger Sub to enter into the Merger
Agreement and incur the obligations set forth therein, Parent has required that the Securityholders enter into this Agreement; 
 NOW,
THEREFORE, in consideration of the foregoing and the representations, warranties, covenants and agreements contained herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties
hereto, each intending to be legally bound, hereby agree as follows: 
 ARTICLE I 
 DEFINED TERMS 
 Section 1.1 Definitions. Capitalized, undefined terms used in
this Agreement shall have the respective meanings ascribed to such terms in the Merger Agreement. In addition to the terms defined elsewhere herein or in the Merger Agreement, for purposes of this Agreement, the terms below shall have the following
meanings: 
 “Affiliate” means, with respect to any specified Person, any other Person that directly, or through one or more
intermediaries, controls or is controlled by or is under common control with such specified Person. For 

  

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purposes of this Agreement, with respect to any Securityholder, “Affiliate” shall not include the Company and the Persons that directly, or
indirectly through one or more intermediaries, are controlled by the Company. For the avoidance of doubt, no officer or director of the Company shall be deemed an Affiliate of another officer or director of the Company by virtue of his or her status
as an officer or director of the Company. 
 “Alternative Transaction” means (a) any transaction of the type described
in the definition of “Company Acquisition Proposal” contained in the Merger Agreement other than the transactions contemplated by the Merger Agreement and (b) any other action, agreement or transaction that would reasonably be
expected to hinder, delay, impede or frustrate the consummation of the transactions contemplated by the Merger Agreement (including, without limitation, the Conversion and the Merger). 
 “Beneficially Owned” or “Beneficial Ownership” with respect to any securities means having beneficial ownership of such
securities (as determined pursuant to Rule 13d-3 under the Exchange Act, disregarding the phrase “within 60 days” in paragraph (d)(1)(i) thereof), including pursuant to any agreement, arrangement or understanding, whether or not in
writing. 
 “Beneficial Owner” with respect to any securities means a Person that has Beneficial Ownership of such
securities. 
 “Person” shall mean an individual, corporation, limited liability company, partnership, association, trust,
unincorporated organization, other entity or group (as defined in the Exchange Act). 
 “Subject Securities” means, with
respect to any Securityholder, without duplication, (a) Company Stock and Bridge Notes Beneficially Owned by such Securityholder on the date hereof as described on Schedule I, and (b) any additional Company Stock or Bridge
Notes acquired by such Securityholder or over which such Securityholder acquires Beneficial Ownership, whether pursuant to existing option, warrants or other rights to acquire securities of the Company or otherwise. 
 “Termination Time” means the earliest of (a) the Effective Time, (b) the termination of the Merger Agreement in accordance
with Section 9.1 thereof, or (c) written notice by Parent to the Securityholders of the termination of this Agreement. 
 “Transfer” means, with respect to a security, the sale, transfer, pledge, hypothecation, encumbrance, assignment or disposition of such security or the Beneficial Ownership thereof, the offer to make such a sale, transfer
or other disposition, and each option, agreement, arrangement or understanding, whether or not in writing, to effect any of the foregoing. As a verb, “Transfer” shall have a correlative meaning. 
 ARTICLE II 
 COVENANTS OF STOCKHOLDERS

 Section 2.1 Irrevocable Proxy. Concurrently with the execution of this Agreement, each Securityholder shall execute and deliver to
Parent a proxy in the form attached hereto as Exhibit A (each, a “Proxy”). Each Proxy shall be irrevocable to the fullest extent provided in Section 212 of the Delaware General Corporation Law with respect to the
securities referred to therein. 
 Section 2.2 Agreement to Vote. 
  

	 	(a)	 At any meeting of the stockholders or holders of other securities of the Company held prior to the Termination Time, however called, and at every adjournment or
postponement thereof prior to the Termination Time, or in connection with any written consent of, or any other action by, the stockholders or other holders of securities of the Company given or solicited prior to the Termination 

  

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Time, each Securityholder shall vote, or provide its consent with respect to, all of the Subject Securities entitled to vote or to consent thereon:
(i) in favor of adoption, approval and consummation of (A) the Merger Agreement and the transactions contemplated thereby (including, without limitation, the Merger) and any actions required in furtherance thereof and (B) the
Conversion, and (ii) against any Alternative Transaction or any other action or agreement that would result in a breach in any material respect of any covenant, representation or warranty or any other obligation or agreement of the Company
under the Merger Agreement or that is intended, or could reasonably be expected, to impede, interfere with, delay, postpone, discourage or adversely affect the consummation of the Conversion, the Merger or the other transactions contemplated by the
Merger Agreement. 

  

	 	(b)	Each Securityholder hereby agrees that it shall not directly or indirectly enter into any agreement (whether written or oral) with any other Person (other than Parent) prior to the
Termination Time to vote, grant any proxy or give instructions with respect to the voting of, any Subject Securities that are Beneficially Owned by such Securityholder. 

 Section 2.3 Revocation of Proxies; Cooperation. 
  

	 	(a)	Each Securityholder hereby severally, but not jointly, and with respect only to itself and not any other Securityholder, represents and warrants to Parent that any proxies
heretofore given in respect of the Subject Securities Beneficially Owned by such Securityholder are not irrevocable, and such Securityholder hereby revokes any and all proxies (other than the Proxies) with respect to such Subject Securities. Prior
to the Termination Time, no Securityholder shall directly or indirectly grant any proxies or powers of attorney with respect to the matters set forth in Section 2.2 hereof (other than to Parent), deposit any of the Subject Securities
Beneficially Owned by it, or enter, into a voting agreement (other than this Agreement) with respect to any of such Subject Securities. 

  

	 	(b)	Each Securityholder shall (i) use all reasonable efforts to cooperate with the Company, Parent and Merger Sub in connection with, and in furtherance of, the transactions
contemplated by the Merger Agreement (including, without limitation, the Conversion and the Merger), (ii) promptly take such actions as are necessary or appropriate to consummate such transactions, and (iii) provide any information
reasonably requested by the Company or Parent for any regulatory application or filing made or approval sought in respect of such transactions. 

  

	 	(c)	Each Securityholder shall take all actions necessary to permit the Subject Securities to be converted into the right to receive the Per Share Merger Consideration, the Milestone
Consideration (if any) and the Top-Up Consideration (if any) in accordance with the provisions of the Merger Agreement. 

 Section 2.4 No Solicitation. Each Securityholder hereby severally, but not jointly, and with respect only to itself and not any other Securityholder, agrees that: 
  

	 	(a)	such Securityholder shall not, and shall cause its controlled Affiliates (and shall instruct its other Affiliates) and its and their respective directors (or persons in similar
positions), officers, employees, agents and representatives (as applicable) not to, directly or indirectly, (i) solicit, initiate or knowingly encourage any proposal that constitutes, or could reasonably be expected to lead to, a Company
Acquisition Proposal, (ii) participate or engage in discussions or negotiations with, or disclose or provide any non-public information relating to such Securityholder, the Company, Parent, Merger Sub or any of their respective Affiliates or
this Agreement or the Merger Agreement and the transactions contemplated hereby or thereby to, or afford access to any of the properties, books or records of such Securityholder, the Company or its Affiliates to, any Person, in each case with
respect to any Company Acquisition Proposal, (iii) approve, endorse, recommend or vote for (or consent to) any Company Acquisition Proposal or (iv) enter into any agreement or agreement in principle (in any case, whether written or oral)
with any Person with respect to any Company Acquisition Proposal; and 

  

	 	(b)	 notwithstanding anything to the contrary contained in this Agreement, (i) the provisions of this Agreement apply solely to such Securityholder when acting in
its capacity as a holder of securities of 

  

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the Company and not when acting or purporting to act as a director or officer of the Company (it being understood that the Company has separate and
independent obligations to Parent and Merger Sub under the Merger Agreement, including, without limitation, Section 5.5 thereof); and (ii) none of the provisions of this Agreement shall be construed to prohibit, limit or restrict any
Securityholder from exercising its fiduciary duties to the Company by voting or taking any other action whatsoever in the capacity of a director or officer of the Company, provided that the Company complies with its obligations under the
Merger Agreement (including, without limitation, Section 5.5 thereof). 

 Section 2.5 No Transfer of Subject
Shares; Publicity. 
  

	 	(a)	During the term of this Agreement, (i) no Securityholder shall take any action to subject any of the Subject Securities that are Beneficially Owned by it to any Lien,
(ii) no Securityholder shall Transfer or agree to Transfer any of the Subject Securities that are Beneficially Owned by it or grant any proxy or power-of-attorney with respect to any such Subject Securities and (iii) each Securityholder
shall take all action necessary to prevent creditors in respect of any pledge of the Subject Securities that are Beneficially Owned by it from exercising their rights under such pledge. This Section 2.5 shall not prohibit a Transfer of Subject
Securities by a Securityholder (a) if such Securityholder is an individual (e.g., not a corporation, limited liability company, partnership, trust or other entity) (i) to any member of such Securityholder’s immediate family, or
to a trust for the benefit of such Securityholder or any member of such Securityholder’s immediate family, or (ii) upon the death of such Securityholder, or (b) if Securityholder is a partnership or limited liability company, to one
or more partners or members of such Securityholder or to a corporation that is an Affiliate of such Securityholder and is under common control with such Securityholder; provided, however, that a Transfer referred to in this sentence shall be
permitted only if, as a condition precedent to such Transfer, the transferee in such Transfer agrees in a writing that is reasonably satisfactory in form and substance to Parent to be bound by all of the terms of this Agreement as though such
transferee were a Securityholder hereunder. 

  

	 	(b)	Except to the extent required by applicable law, no Securityholder shall, and each Securityholder shall cause its controlled Affiliates (and shall instruct its other Affiliates) and
its and their respective directors (or persons in similar positions), officers, employees, agents or representatives (as applicable) not to, make any press release or public announcement with respect to the business or affairs of the Company, Parent
or Merger Sub, including this Agreement and the Merger Agreement and the transactions contemplated hereby and thereby, without the prior written consent of Parent and the Company in each instance. 

 Section 2.6 No Appraisal. Each Securityholder hereby (a) agrees not to make a demand for appraisal in respect of any Subject Securities that
are Beneficially Owned by it and (b) hereby irrevocably and unconditionally waives any and all appraisal rights, dissenters’ rights and similar rights relating to the Merger Agreement or any of the transactions contemplated thereby
(including, without limitation, the Conversion and the Merger) or any related transaction. 
 ARTICLE III 
 REPRESENTATIONS AND WARRANTIES OF STOCKHOLDERS 
 Each Securityholder hereby severally, but not jointly, and with respect only to itself and not any other Securityholder, represents and warrants to Parent that: 
 Section 3.1 Ownership. Such Securityholder is the sole Beneficial Owner and the record and legal owner of the Subject Securities or options, warrants or other rights to acquire Subject Securities, as
applicable, set forth opposite such Securityholder’s name on Schedule I attached hereto, which Subject Securities constitute all of the securities of the Company that are Beneficially Owned by such Securityholder as of the date
hereof; and such 

  

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Securityholder has good and valid title to all of such Subject Securities, free and clear of all Liens, options, proxies and voting agreements and has the
sole right to such Subject Securities, and there are no restrictions on rights of disposition or other Liens pertaining to such Subject Securities. None of the Subject Securities set forth opposite such Securityholder’s name on Schedule
I attached hereto is subject to any voting trust or other contract (whether written or oral) with respect to the voting thereof, and no proxy, power of attorney or other authorization has been granted with respect to any of such Subject
Securities. 
 Section 3.2 Authority and Non-Contravention. 
  

	 	(a)	If such Securityholder is a corporation, limited liability company, partnership, trust or other entity, such Securityholder is duly organized, validly existing and in good standing
under the laws of its jurisdiction of incorporation, formation or organization (as applicable). 

  

	 	(b)	Assuming due authorization, execution and delivery of this Agreement by Parent, this Agreement has been duly and validly executed and delivered by such Securityholder and
constitutes the legal, valid and binding obligation of such Securityholder, enforceable against such Securityholder in accordance with its terms except (i) to the extent limited by applicable bankruptcy, insolvency or similar laws affecting
creditors’ rights and (ii) the remedy of specific performance and injunctive and other forms of equitable relief may be subject to equitable defenses and to the discretion of the court before which any proceeding therefor may be brought;
and such Securityholder has all necessary power, authority and legal capacity to execute and deliver this Agreement and to perform its obligations under this Agreement, and no other proceedings or actions on the part of such Securityholder are
necessary to authorize such Securityholder’s execution, delivery or performance of this Agreement or its consummation of the transactions contemplated hereby. If such Securityholder is a corporation, limited liability company, partnership,
trust or other entity, such actions have been duly authorized and approved by all necessary corporate, organizational or other action on the part of such Securityholder. 

  

	 	(c)	Such Securityholder is not nor will it be required to make any filing with or give any notice to, or to obtain any consent from, any Person or Governmental Entity in connection with
the execution, delivery or performance of this Agreement or to obtain any permit or approval from any Governmental Entity for any of the transactions contemplated hereby, except to the extent required by Section 13 or Section 16 of the
Exchange Act. 

  

	 	(d)	Neither the execution and delivery of this Agreement by such Securityholder nor the consummation of the transactions contemplated hereby will directly or indirectly (whether with
notice or lapse of time or both) (i) in the event that such Securityholder is a corporation, limited liability company, partnership, trust or other entity, conflict with, result in any violation of or require any consent under any provision of
the certificate or articles of incorporation, bylaws, limited liability company agreement, partnership agreement, declaration or trust or other organizational or governing documents of such Securityholder, (ii) conflict with, result in any
violation of, require any consent under or constitute a default by such Securityholder under any mortgage, bond, indenture, agreement, instrument or obligation to which such Securityholder is a party or by which it or any of its assets (including
any Subject Securities that are Beneficially Owned by such Securityholder) are bound, or violate any permit of any Governmental Entity, or any law, order or consent decree to which such Securityholder, or any of its assets (including any Subject
Securities that are Beneficially Owned by such Securityholder), may be subject, or (iii) result in the imposition or creation of any Lien upon or with respect to any of the assets owned or used by such Securityholder (including any Subject
Securities that are Beneficially Owned by it). 

 Section 3.3 Total Shares. Except as set forth on Schedule I
attached hereto, such Securityholder is not the Beneficial Owner of, and does not have (whether currently, upon lapse of time, following the satisfaction of any conditions, upon the occurrence of any event or any combination of the foregoing) any
right to acquire, and has no other interest in or voting rights with respect to, any securities of the Company. 
  

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 Section 3.4 Reliance. Such Securityholder understands and acknowledges that Parent is entering
into the Merger Agreement in reliance upon such Securityholder’s execution, delivery and performance of this Agreement. 
 ARTICLE IV

 GENERAL PROVISIONS 
 Section
4.1 No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent or any of its Affiliates any direct or indirect ownership or incidents of ownership of or with respect to any Subject Securities. All rights,
ownership and economic benefits of and relating to the Subject Securities shall remain and belong to the Securityholders, and Parent and its Affiliates shall have no authority to manage, direct, superintend, restrict, regulate, govern or administer
any of the policies or operations of the Company or exercise any power or authority to direct any Securityholder in the voting of any of the Subject Securities, except as otherwise provided herein or in the Merger Agreement. 
 Section 4.2 Notices. All notices, consents, waivers and other communications under this Agreement shall be in writing (including facsimile or
similar writing) and shall be given: 
  

	 	(a)	If to Parent, to: 

 Oracle Healthcare Acquisition Corp.

 200 Greenwich Ave., 3rd Floor 
 Greenwich, Connecticut 06830 
 Attn: Joel Liffmann 
 Phone: (203) 862-7900 
 Fax: (203) 862-1613 
 With a copy to: 
 Willkie Farr &
Gallagher LLP 
 787 Seventh Avenue 
 New York, New York 10019 
 Attn: William H. Gump, Esq. 
 Phone: (212) 728-8285 
 Fax: (212) 728-9285 
  

	 	(b)	If to a Securityholder, to such Securityholder’s address set forth on Schedule I attached hereto. 

 or such other address or facsimile number as a party hereto may hereafter specify for the purpose by notice to the other parties hereto. Each notice, consent, waiver or
other communication under this Agreement shall be effective only (a) if given by facsimile, when the facsimile is transmitted to the facsimile number specified in or pursuant to this Section 4.2 and the appropriate facsimile confirmation
is received or (b) if given by overnight courier or personal delivery, when delivered at the address specified in or pursuant to this Section 4.2. 
 Section 4.3 Entire Agreement and Modification. This Agreement, each Proxy and any other documents delivered by the parties hereto in connection herewith constitute the entire agreement among the parties hereto
with respect to the subject matter hereof and supersedes all prior agreements and understandings, both written and oral, between the parties with respect to the subject matter hereof and constitute (along with the documents delivered pursuant to
this Agreement) a complete and exclusive statement of the terms of the agreement among the parties hereto with respect to the subject matter hereof. This Agreement shall not be amended, supplemented or otherwise modified except by a written document
executed by the party against whose interest the modification will operate. 
 Section 4.4 Drafting and Representation. The parties
hereto hereby agree that the terms and language of this Agreement were the result of negotiations between the parties and, as a result, there shall be no presumption that 

  

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any ambiguities in this Agreement shall be resolved against any party hereto. Any controversy over construction of this Agreement shall be decided without
regard to events of authorship or negotiation. 
 Section 4.5 Severability. Any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction, as determined by a court of competent jurisdiction, shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without affecting the validity or enforceability of the
remaining provisions hereof. Any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. If any provision of this Agreement is so broad as to be unenforceable,
the provision shall be interpreted to be only so broad as is enforceable. 
 Section 4.6 Assignment, Binding Effect and No Third-Party
Rights. No Securityholder may assign (by operation of law or otherwise) any of its rights or delegate (by operation of law or otherwise) any of its obligations under this Agreement without the prior written consent of Parent, and any purported
assignment or delegation other than in accordance with this Section 4.6 shall be void ab initio. This Agreement will apply to, be binding in all respects upon, and inure to the benefit of each of the parties hereto and their respective
successors, personal or legal representatives, heirs, distributes, devisees, legatees, executors, administrators and permitted assigns. Nothing expressed or referred to in this Agreement will be construed to give any Person, other than the parties
to this Agreement, any legal or equitable right, remedy or claim under or with respect to this Agreement or any provision of this Agreement except such rights as may inure to the respective successors, personal or legal representatives, heirs,
distributes, devisees, legatees, executors, administrators and permitted assigns of the parties hereto as provided in this Section 4.6. 
 Section 4.7 Enforcement of Agreement. Each Securityholder hereby acknowledges and agrees that Parent and/or its Affiliates could be irreparably damaged if any of the provisions of this Agreement are not performed in accordance with
their specific terms and that any breach of this Agreement by such Securityholder could not be adequately compensated by monetary damages. Accordingly, such Securityholder hereby (a) waives, in any action for specific performance, the defense
of adequacy of a remedy at law and (b) agrees that, in addition to any other right or remedy to which Parent may be entitled, at law or in equity, Parent shall be entitled to enforce any provision of this Agreement by a decree of specific
performance and to temporary, preliminary and permanent injunctive relief to prevent breaches or threatened breaches of any of the provisions of this Agreement, without posting any bond or other undertaking. 
 Section 4.8 Waiver. The rights and remedies of the parties to this agreement are cumulative and not alternative. Neither any failure nor any delay
by a party in exercising any right, power or privilege under this Agreement, any Proxy or any of the documents referred to in this Agreement will operate as a waiver of such right, power or privilege, and no single or partial exercise of any such
right, power or privilege will preclude any other or further exercise of such right, power or privilege or the exercise of any other right, power or privilege. To the maximum extent permitted by law, (a) no claim or right arising out of this
Agreement, any Proxy or any of the documents referred to in this Agreement can be discharged by one party, in whole or in part, by a waiver or renunciation of the claim or right unless in a written document signed by each other party hereto against
whom such waiver or renunciation is charged, (b) no waiver that may be given by a party hereto will be applicable except in the specific instance for which it is given, and (c) no notice to or demand on one party hereto will be deemed to
be a waiver of any obligation of that party or of the right of the party giving such notice or demand to take further action without notice or demand as provided in this Agreement, any applicable Proxy or the documents referred to in this Agreement.

 Section 4.9 Governing Law. This Agreement and all acts and transactions pursuant hereto and the rights and obligations of the
parties hereto will be governed by, construed under and interpreted in accordance with the Laws of the State of Delaware, without giving effect to principles of conflicts or choice of law. 
 Section 4.10 Consent to Jurisdiction. Except as otherwise expressly provided in this Agreement, the parties hereto agree that any suit, action or
proceeding seeking to enforce any provision of, or based on any matter 

  

 7 

 
arising out of or in connection with, this Agreement or the transactions contemplated hereby shall be brought exclusively in the United States District Court
for the District of Delaware or, if such court does not have jurisdiction over the subject matter of such proceeding or if such jurisdiction is not available, in the Court of Chancery of the State of Delaware, County of New Castle, and each of the
parties hereto hereby consents to the exclusive jurisdiction of those courts (and of the appropriate appellate courts therefrom) in any suit, action or proceeding and irrevocably waives, to the fullest extent permitted by law, any objection which it
may now or hereafter have to the laying of the venue of any suit, action or proceeding in any of those courts or that any suit, action or proceeding which is brought in any of those courts has been brought in an inconvenient forum. Process in any
suit, action or proceeding may be served on any party anywhere in the world, whether within or without the jurisdiction of any of the named courts. Without limiting the foregoing, each party agrees that service of process on it by notice as provided
in Section 4.2 hereof shall be deemed effective service of process. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ALL RIGHTS TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM (WHETHER
BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OF THE TRANSACTIONS CONTEMPLATED HEREBY. 
 Section
4.11 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original, but all of which, taken together, shall constitute one and the same instrument. 
 Section 4.12 Termination. This Agreement shall terminate at the Termination Time. 
 Section 4.13 Expenses. Except as otherwise provided in this Agreement, all costs and expenses incurred in connection with this Agreement and the
transactions contemplated hereby shall be paid by the party incurring such expenses. Nothing in this Agreement shall be deemed to limit the obligations of the Company pursuant to Section 9.2 of the Merger Agreement. 
 Section 4.14 Headings; Construction. The headings contained in this Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. In this Agreement (a) words denoting the singular include the plural and vice versa, (b) “it” or “its” or words denoting any gender include all genders and (c) the word
“including” shall mean “including, without limitation,” whether or not expressed. 
 [remainder of page intentionally
left blank] 
  

 8 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the day and
year first above written. 
  

					
	PARENT:	 	
	
	ORACLE HEALTHCARE ACQUISITION CORP.
		
	By:	 	 
	 Name:
	 	 
	 Title:
	 		 	 

  
  
 [PRECISION THERAPEUTICS, INC. 
 SIGNATURE PAGE TO VOTING AGREEMENT] 
  

 9 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the day and
year first above written. 
  

							
	SECURITYHOLDER:
	
	 
	 (Insert Name of Entity, if any)

		
	Date:	 	 
		
	By:	 	 
		
	Printed Name:	 	 
		
	Title (if applicable):	 	 

  
  
 [PRECISION THERAPEUTICS, INC. 
 SIGNATURE PAGE TO VOTING AGREEMENT] 
  

 10 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the day and
year first above written. 
  

							
	SECURITYHOLDER:
	
	 
	 (Insert Name of Entity, if any)

		
	Date:	 	 
		
	By:	 	 
		
	Printed Name:	 	 
		
	Title (if applicable):	 	 

  
  
 [PRECISION THERAPEUTICS, INC. 
 SIGNATURE PAGE TO VOTING AGREEMENT] 
  

 11 

 EXHIBIT A  
 IRREVOCABLE PROXY 
 The undersigned holder (the “Securityholder”) of securities of
Precision Therapeutics, Inc., a Delaware corporation (the “Company”), hereby irrevocably (to the full extent permitted by Section 212 of the Delaware General Corporation Law) appoints Oracle Healthcare Acquisition Corp., a
Delaware corporation (the “Parent”), as the sole and exclusive attorney and proxy of the Securityholder, with full power of substitution and resubstitution, to vote and exercise all voting rights expressly provided herein (to the
full extent that the Securityholder is entitled to do so) with respect to (i) the outstanding shares of capital stock or other securities of the Company owned of record by the Securityholder as of the date of this Proxy, which shares (including
the classes and series thereof) and securities are specified on Schedule I attached to the Voting Agreement (as hereinafter defined), and (ii) any and all other shares of capital stock or securities of the Company which the
Securityholder may acquire on or after the date hereof (such shares of capital stock and other securities of the Company referred to in the immediately preceding clauses (i) and (ii), the “Securities”). Upon the
Securityholder’s execution of this Proxy, any and all prior proxies given by the Securityholder with respect to any of the Securities are hereby revoked and the Securityholder agrees not to grant any subsequent proxies with respect to any of
the Securities at any time prior to the “Termination Time” under the Voting Agreement. 
 This Proxy is irrevocable (to the extent
permitted by Section 212 of the Delaware General Corporation Law), is coupled with an interest and is granted pursuant to that certain Voting Agreement, dated as of the date hereof (as amended from time to time, the “Voting
Agreement”), by and among Parent, the Securityholder and certain other holders of securities of the Company, and is granted in consideration of Parent entering into the Merger Agreement (as defined in the Voting Agreement). 
 The attorneys and proxies named above, and each of them, are hereby authorized and empowered by the Securityholder, at any time prior to the Termination
Time, to act as the Securityholder’s attorney and proxy to vote the Securities, and to exercise all voting and other rights of the Securityholder with respect to the Securities (including, without limitation, the power to execute and deliver
written consents pursuant to Section 228 of the Delaware General Corporation Law or otherwise), at every annual or special meeting (and, in each case, any adjournment or postponement thereof) of the holders securities of the Company at which
any of the Securities are entitled to vote and in every written consent in lieu of any such meeting (or adjournment or postponement): (i) in favor of adoption, approval and consummation of (A) the Merger Agreement and the transactions
contemplated thereby (including, without limitation, the Merger (as defined in the Voting Agreement)) and any actions required in furtherance thereof and (B) the Conversion (as defined in the Voting Agreement), and (ii) against any
Alternative Transaction (as defined in the Voting Agreement) or any other action or agreement that would result in a breach in any material respect of any covenant, representation or warranty or any other obligation or agreement of the Company under
the Merger Agreement or that is intended, or could reasonably be expected, to impede, interfere with, delay, postpone, discourage or adversely affect the consummation of the Conversion, the Merger or the other transactions contemplated by the Merger
Agreement. 
 The Securityholder may vote the Securities on all other matters not referred to in this Proxy, and the attorneys and proxies
named above may not exercise this Proxy with respect to such other matters. 
 This Proxy shall be binding upon the heirs, estate, executors,
personal representatives, successors and assigns of the Securityholder (including any transferee of any of the Securities). 
 If any
provision of this Proxy or any part of any such provision is held under any circumstances to be invalid or unenforceable in any jurisdiction, as determined by a court of competent jurisdiction, then (a) such provision or part thereof shall,
with respect to such circumstances and in such jurisdiction, be deemed amended to conform to applicable laws so as to be valid and enforceable to the fullest possible extent, (b) the invalidity or unenforceability of such provision or part
thereof under such circumstances and in such jurisdiction shall not 

  

 12 

 
affect the validity or enforceability of such provision or part thereof under any other circumstances or in any other jurisdiction, and (c) the
invalidity or unenforceability of such provision or part thereof shall not affect the validity or enforceability of the remainder of such provision or the validity or enforceability of any other provision of this Proxy. Each provision of this Proxy
is separable from every other provision of this Proxy, and each part of each provision of this Proxy is separable from every other part of such provision. 
 Dated: December         , 2007 
  

	
	 SECURITYHOLDER:

	
	 
	 (Insert Name of Entity, if any)

	
	 Date:
                                        
                                        
           

	
	 By:
                                        
                                        
               

	
	 Printed Name:
                                        
                                  

	
	 Title (if
applicable):                                      
                          

  
 [Precision
Therapeutics, Inc. 
 Signature Page to Irrevocable Proxy] 
  

 13

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