Form of Registered Direct Common Warrant



 Exhibit 4.4 
 CERUS CORPORATION 
 WARRANT TO PURCHASE
COMMON STOCK 
 Warrant No.: 2009-[    ] 
 Number of Shares of Common Stock: 
 Date of Issuance: August [    ], 2009 (“Issuance
Date”) 
 Cerus Corporation, a Delaware corporation (the “Company”), certifies that, for good and valuable consideration, the
receipt and sufficiency of which are acknowledged, [            ], the registered holder hereof or its permitted assigns (the “Holder”), is entitled, subject to the terms
set forth below, to purchase from the Company, at the Exercise Price (as defined below) then in effect, upon surrender of this Warrant to Purchase Common Stock (including any Warrants to Purchase Common Stock issued in exchange, transfer or
replacement hereof, the “Warrant”), at any time or times on or after the six (6) month anniversary of the Issuance Date (the “Exercisability Date”), but not after 5:30 p.m., New York Time, on the Expiration
Date (as defined below), [                    ] ([            ]) fully paid and
nonassessable shares of Common Stock (as defined below) (the “Warrant Shares”). Except as otherwise defined herein, capitalized terms in this Warrant shall have the meanings set forth in Section 15. This Warrant is one of a
series of warrants to purchase shares of Common Stock (collectively, the “Warrants”) issued pursuant to those certain Subscription Agreements, dated as of August 19, 2009 (the “Subscription Date”), by and among
the Company and the investors (the “Investors”) referred to therein (the “Subscription Agreements”) pursuant to the Company’s Registration Statements on Form S-3 (No. 333-154842 and No. 333-161214)
(collectively, the “Registration Statement”). 
 1. EXERCISE OF WARRANT. 
 (a) Mechanics of Exercise. Subject to the terms and conditions hereof (including, without limitation, the limitations set forth in
Section 1(d)), this Warrant may be exercised by the Holder on any day on or after the Exercisability Date, in whole or in part (but not as to fractional shares), by (i) delivery of a written notice, in the form attached hereto as
Exhibit A (the “Exercise Notice”), of the Holder’s election to exercise this Warrant and (ii) if both (A) the Holder is not electing a Cashless Exercise (as defined below) pursuant to Section 1(c) of this
Warrant and (B) a registration statement registering the issuance of the Warrant Shares under the Securities Act of 1933, as amended (the “Securities Act”), is effective and available for the issuance of the Warrant Shares, or
an exemption from registration under the Securities Act is available for the issuance of the Warrant Shares, payment to the Company of an amount equal to the applicable Exercise Price multiplied by the number of Warrant Shares as to which this
Warrant is being exercised (the “Aggregate Exercise Price”) in cash or wire transfer of immediately available funds (a “Cash Exercise”). The Holder shall not be required to surrender this Warrant in order to effect
an exercise hereunder, provided that in the event of an exercise of this Warrant for all Warrant Shares then issuable hereunder, this Warrant is surrendered to the Company by the second Trading Day following the date on which the Company has
received each of the Exercise Notice and, if this 








 
Warrant is being exercised pursuant to a Cash Exercise, the Aggregate Exercise Price (the “Exercise Delivery Documents”). On or before the
first Trading Day following the date on which the Company has received the Exercise Delivery Documents, the Company shall transmit by facsimile an acknowledgment of confirmation of receipt of the Exercise Delivery Documents to the Holder and the
Company’s transfer agent for the Common Stock (the “Transfer Agent”). The Company shall deliver any objection to the Exercise Delivery Documents on or before the first Trading Day following the date on which the Company has
received all of the Exercise Delivery Documents. In the event of any discrepancy or dispute, the records of the Company shall be controlling and determinative in the absence of manifest error. On or before the third Trading Day following the date on
which the Company has received the Exercise Notice, and in the case of a Cash Exercise, the Aggregate Exercise Price (the “Share Delivery Date”), the Company shall, upon the request of the Holder, credit such aggregate number of
shares of Common Stock to which the Holder is entitled pursuant to such exercise to the Holder’s or its designee’s balance account with The Depository Trust Company (“DTC”) through its Deposit Withdrawal Agent Commission
system, or if the Transfer Agent is not participating in the Fast Automated Securities Transfer Program (the “FAST Program”) or if the certificates are required to bear a legend regarding restriction on transferability, issue and
dispatch by overnight courier to the address as specified in the Exercise Notice, a certificate, registered in the Company’s share register in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder
is entitled pursuant to such exercise. Upon delivery of the Exercise Delivery Documents and surrender of this Warrant, the Holder shall be deemed for all corporate purposes to have become the holder of record of the Warrant Shares with respect to
which this Warrant has been exercised, irrespective of the date such Warrant Shares are credited to the Holder’s DTC account or the date of delivery of the certificates evidencing such Warrant Shares, as the case may be. If this Warrant is
submitted in connection with any exercise pursuant to this Section 1(a) and the number of Warrant Shares represented by this Warrant submitted for exercise is greater than the number of Warrant Shares being acquired upon an exercise, then the
Company shall as soon as practicable and in no event later than five Trading Days after any exercise and at its own expense, issue a new Warrant (in accordance with Section 7(e)) representing the right to purchase the number of Warrant Shares
purchasable immediately prior to such exercise under this Warrant, less the number of Warrant Shares with respect to which this Warrant is exercised. The Company shall pay any and all taxes that may be payable with respect to the issuance and
delivery of Warrant Shares upon exercise of this Warrant; provided, however, that the Company shall not be required to pay any tax which may be payable in respect of any transfer involved in the registration of any certificates for
Warrant Shares or Warrants in a name other than that of the Holder or an affiliate thereof. The Holder shall be responsible for all other tax liability that may arise as a result of holding or transferring this Warrant or receiving Warrant Shares
upon exercise hereof. In addition to any other rights available to the Holder, if the Company fails to cause the Transfer Agent to transmit to the Holder a certificate or the certificates representing the Warrant Shares or to credit the
Holder’s balance account with DTC for such number of Warrant Shares to which the Holder is entitled upon the Holder’s exercise pursuant to an exercise on or before the Share Delivery Date, and if after such date the Holder purchases (in an
open market transaction or otherwise) or the Holder’s brokerage firm otherwise purchases, shares of Common Stock to deliver in satisfaction of a sale by the Holder of the Warrant Shares which the Holder anticipated receiving upon such exercise
(a “Buy-In”), then the Company shall within three (3) Trading Days after the Holder’s request and in the Holder’s discretion, either (i) pay cash to the Holder in an amount equal to the Holder’s total
purchase price 

  

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(including brokerage commissions, if any) for the shares of Common Stock so purchased (the “Buy-In Price”), at which point the
Company’s obligation to deliver such certificate (and to issue such Warrant Shares or credit such Holder’s balance account with DTC) shall terminate, or (ii) promptly honor its obligation to deliver to the Holder a certificate or
certificates representing such Warrant Shares or credit such Holder’s balance account with DTC and pay cash to the Holder in an amount equal to the excess (if any) of the Buy-In Price over the product of (A) such number of shares of Common
Stock, times (B) the VWAP on the date of exercise. 
 (b) Exercise Price. For purposes of this Warrant, “Exercise
Price” means $2.90 per share of Common Stock, subject to adjustment as provided herein. 
 (c) Cashless Exercise.
Notwithstanding anything contained herein to the contrary, if a registration statement registering the issuance of the Warrant Shares under the Securities Act is not effective or available for the issuance of the Warrant Shares, the Holder may, in
its sole discretion, exercise this Warrant in whole or in part and, in lieu of making the cash payment otherwise contemplated to be made to the Company upon such exercise in payment of the Aggregate Exercise Price, elect instead to receive upon such
exercise the “Net Number” of shares of Common Stock determined according to the following formula (a “Cashless Exercise”): 
 Net Number = (A x B) - (A x C) 
                           B 
 For purposes of the foregoing formula: 
 A= the total number of shares with respect to which this Warrant is
then being exercised. 
 B= the Weighted Average Price of the shares of Common Stock (as reported by Bloomberg) on the date immediately
      preceding the date of the Exercise Notice. 
 C= the Exercise Price then in effect for the applicable
Warrant Shares at the time of such exercise. 
 Notwithstanding anything herein to the contrary, on the Termination Date, this Warrant shall
be automatically exercised via cashless exercise pursuant to this Section 1(c). 
 (d) Limitations on Exercises. (1) The
Company shall not effect the exercise of this Warrant, and the Holder shall not have the right to exercise this Warrant, to the extent that after giving effect to such exercise, such Holder (together with such Holder’s affiliates and any other
Persons acting as a group together) would beneficially own in excess of 4.99% (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such exercise. For purposes of the foregoing
sentence, the aggregate number of shares of Common Stock beneficially owned by such Person and its affiliates shall include the number of shares of Common Stock issuable upon exercise of this Warrant with respect to which the determination of such
sentence is being made, but shall exclude shares of Common Stock which would be issuable upon (i) exercise of the remaining, unexercised portion of this Warrant 

  

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beneficially owned by such Person and its affiliates and (ii) exercise or conversion of the unexercised or unconverted portion of any other securities
of the Company beneficially owned by such Person and its affiliates (including, without limitation, any convertible notes or convertible preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation
contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange
Act”), it being acknowledged that the Company is not representing to the Holder that such calculation is in compliance with Section 13(d) of the Exchange Act, and the Holder is solely responsible for any schedules required to be filed
in accordance therewith. For purposes of this Warrant, in determining the number of outstanding shares of Common Stock, the Holder may rely on the number of outstanding shares of Common Stock as reflected in (1) the Company’s most recent
Form 10-K, Form 10-Q, Current Report on Form 8-K or other public filing with the Securities and Exchange Commission, as the case may be, (2) a more recent public announcement by the Company or (3) any other notice by the Company or the
Transfer Agent setting forth the number of shares of Common Stock outstanding. For any reason at any time, upon the written or oral request of the Holder, where such request indicates that it is being made pursuant to this Warrant, the Company shall
within one Trading Day confirm orally and in writing to the Holder the number of shares of Common Stock then outstanding. In any case, the number of outstanding shares of Common Stock shall be determined after giving effect to the conversion or
exercise of securities of the Company, including the Warrants, by the Holder and its affiliates since the date as of which such number of outstanding shares of Common Stock was reported. By written notice to the Company, the Holder may increase or
decrease the Maximum Percentage to any other percentage not in excess of 9.99% specified in such notice; provided, that (i) any such increase will not be effective until the 61st day after such notice is delivered to the Company and (ii) any such increase or decrease will apply only to the Holder and not
to any other holder of Warrants. 
 (e) No Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares
shall be issued upon the exercise of this Warrant. As to any fraction of a share that the Holder would otherwise be entitled to purchase upon such exercise, the Company shall pay a cash adjustment in respect of such final fraction in an amount equal
to such fraction multiplied by the Exercise Price. 
 2. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES. The Exercise Price
and the number of Warrant Shares shall be adjusted from time to time as follows: 
 (a) Adjustment upon Subdivision or Combination of
Shares of Common Stock. If the Company at any time on or after the Subscription Date subdivides (by any stock split, stock dividend, recapitalization or otherwise) one or more classes of its outstanding shares of Common Stock into a greater
number of shares, the Exercise Price in effect immediately prior to such subdivision will be proportionately reduced and the number of Warrant Shares will be proportionately increased. If the Company at any time on or after the Subscription Date
combines (by combination, reverse stock split or otherwise) one or more classes of its outstanding shares of Common Stock into a smaller number of shares, the Exercise Price in effect immediately prior to such combination will be proportionately
increased and the number of Warrant Shares will be proportionately decreased. Any adjustment under this Section 2(a) shall become effective at the close of business on the date the subdivision or combination becomes effective. 
  

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 (b) Other Events. If any event occurs of the type contemplated by the provisions of
Section 2(a) but not expressly provided for by such provisions (including, without limitation, the granting of stock appreciation rights, phantom stock rights or other rights with equity features to the holders of the Company’s equity
securities), then the Company’s Board of Directors will make an appropriate adjustment in the Exercise Price and the number of Warrant Shares so as to protect the rights of the Holder; provided, that no such adjustment pursuant to this
Section 2(b) will increase the Exercise Price or decrease the number of Warrant Shares as otherwise determined pursuant to this Section 2. 
 (c) Notwithstanding anything to the contrary in this Warrant, in no event shall the Exercise Price be reduced below the par value of the Company’s Common Stock. 
 3. RIGHTS UPON DISTRIBUTION OF ASSETS. If the Company shall declare or make any dividend or other distribution of its assets (or rights to acquire
its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including, without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification,
corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after the issuance of this Warrant, then, in each such case: 
 (a) any Exercise Price in effect immediately prior to the close of business on the record date fixed for the determination of holders of shares of
Common Stock entitled to receive the Distribution shall be reduced, effective as of the close of business on such record date, to a price determined by multiplying such Exercise Price by a fraction of which (i) the numerator shall be the
Weighted Average Price of the shares of Common Stock on the Trading Day immediately preceding such record date minus the value of the Distribution (as determined in good faith by the Company’s Board of Directors) applicable to one share of
Common Stock, and (ii) the denominator shall be the Weighted Average Price of the shares of Common Stock on the Trading Day immediately preceding such record date; and 
 (b) the number of Warrant Shares shall be increased to a number of shares equal to the number of shares of Common Stock obtainable immediately prior to
the close of business on the record date fixed for the determination of holders of shares of Common Stock entitled to receive the Distribution multiplied by the reciprocal of the fraction set forth in the immediately preceding paragraph (a);
provided, that in the event that the Distribution is of shares of Common Stock or common stock of a company whose common shares are traded on a national securities exchange or a national automated quotation system (“Other Shares of
Common Stock”), then the Holder may elect to receive a warrant to purchase Other Shares of Common Stock in lieu of an increase in the number of Warrant Shares, the terms of which shall be identical to those of this Warrant, except that such
warrant shall be exercisable into the number of shares of Other Shares of Common Stock that would have been payable to the Holder pursuant to the Distribution had the Holder exercised this Warrant immediately prior to such record date and with an
aggregate exercise price equal to the product of the amount by which the exercise price of this Warrant was decreased with respect to the Distribution pursuant to the terms of the immediately preceding paragraph (a) and the number of Warrant
Shares calculated in accordance with the first part of this paragraph (b). 
  

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 4. PURCHASE RIGHTS; FUNDAMENTAL TRANSACTIONS. 
 (a) Purchase Rights. In addition to any adjustments pursuant to Section 2 above, if at any time prior to the Expiration Date the Company
grants, issues or sells any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of shares of Common Stock (the “Purchase Rights”), then the
Holder will be entitled to acquire, upon the terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the number of shares of Common Stock acquirable upon complete exercise
of this Warrant (without regard to any limitations on the exercise of this Warrant) immediately before the date on which a record is taken for the grant, issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which
the record holders of shares of Common Stock are to be determined for the grant, issue or sale of such Purchase Rights. 
 (b)
Fundamental Transactions. Upon the occurrence of any Fundamental Transaction, the Successor Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this Warrant
referring to the “Company” shall refer instead to the Successor Entity), and may exercise every right and power of the Company and shall assume all of the obligations of the Company under this Warrant with the same effect as if such
Successor Entity had been named as the Company herein. Upon consummation of the Fundamental Transaction, the Successor Entity shall deliver to the Holder confirmation that there shall be issued upon exercise of this Warrant at any time after the
consummation of the Fundamental Transaction, in lieu of the shares of the Common Stock (or other securities, cash, assets or other property purchasable upon the exercise of the Warrant prior to such Fundamental Transaction), such shares of stock,
securities, cash, assets or any other property whatsoever (including warrants or other purchase or subscription rights), if any, that the Holder would have been entitled to receive upon the happening of such Fundamental Transaction had this Warrant
been exercised immediately prior to such Fundamental Transaction, as adjusted in accordance with the provisions of this Warrant. In addition to and not in substitution for any other rights hereunder, prior to the consummation of any Fundamental
Transaction pursuant to which holders of shares of Common Stock are entitled to receive securities or other assets with respect to or in exchange for shares of Common Stock (a “Corporate Event”), the Company shall make appropriate
provision to insure that the Holder will thereafter have the right to receive upon an exercise of this Warrant within 90 days after the consummation of the Fundamental Transaction but, in any event, prior to the Expiration Date, in lieu of the
shares of the Common Stock (or other securities, cash, assets or other property) purchasable upon the exercise of the Warrant prior to such Fundamental Transaction, such shares of stock, securities, cash, assets or any other property whatsoever
(including warrants or other purchase or subscription rights) which the Holder would have been entitled to receive upon the happening of such Fundamental Transaction had the Warrant been exercised immediately prior to such Fundamental Transaction.
Provision made pursuant to the preceding sentence shall be in a form and substance reasonably satisfactory to the Holder. Notwithstanding the foregoing, in the event of a Change of Control other than one in which a Successor Entity that is a
publicly traded corporation whose stock is quoted or listed for trading on an Eligible Market assumes this Warrant such that the Warrant shall be exercisable for 

  

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the publicly traded common stock of such Successor Entity, at the request of the Holder delivered before the 90th day after such Change of Control (such a
request, a “Black Scholes Exercise”), the Company (or the Successor Entity) shall purchase this Warrant from the Holder by paying to the Holder, within five Business Days after such request (or, if later, on the effective date of
the Change of Control), cash in an amount equal to the Black Scholes Value of the remaining unexercised portion of this Warrant on the date of the consummation of such Change of Control; provided, however, that if the Black Scholes
Value of the remaining unexercised portion of this Warrant on the date of the consummation of such Change of Control shall exceed the product obtained by multiplying the Black Scholes Cap times the number of then remaining unexercised Warrant Shares
(such product, the “Maximum Payment”), then the cash payable to the Holder for the purchase of this Warrant in connection with a Black Scholes Exercise shall equal the Maximum Payment. The provisions of this Section shall apply
similarly and equally to successive Fundamental Transactions and Corporate Events and shall be applied without regard to any limitations on the exercise of this Warrant. 
 5. RESERVATION OF WARRANT SHARES. The Company covenants that it will at all times reserve and keep available out of the aggregate of its authorized but unissued and otherwise unreserved Common Stock, solely for
the purpose of enabling it to issue Warrant Shares upon exercise of this Warrant as herein provided, the number of shares of Common Stock which are then issuable and deliverable upon the exercise of this entire Warrant, free from preemptive or any
other contingent purchase rights of Persons other than the Holder (taking into account the adjustments and restrictions in Section 2). Such reservation shall comply with the provisions of Section 1. The Company covenants that all shares of
Common Stock so issuable and deliverable shall, upon issuance and the payment of the applicable Exercise Price in accordance with the terms hereof, be duly and validly authorized, issued and fully paid and nonassessable. The Company will take all
such actions as may be necessary to assure that such shares of Common Stock may be issued as provided herein without violation of any applicable law or regulation, or of any requirements of any securities exchange or automated quotation system upon
which the Common Stock may be listed. 
 6. WARRANT HOLDER NOT DEEMED A STOCKHOLDER. Except as otherwise specifically provided herein,
the Holder, solely in such Person’s capacity as a holder of this Warrant, shall not be entitled to vote or receive dividends or be deemed the holder of share capital of the Company for any purpose, nor shall anything contained in this Warrant
be construed to confer upon the Holder, solely in such Person’s capacity as the Holder of this Warrant, any of the rights of a stockholder of the Company or any right to vote, give or withhold consent to any corporate action (whether any
reorganization, issue of stock, reclassification of stock, consolidation, merger, conveyance or otherwise), receive notice of meetings, receive dividends or subscription rights, or otherwise, prior to the issuance to the Holder of the Warrant Shares
which such Person is then entitled to receive upon the due exercise of this Warrant. In addition, nothing contained in this Warrant shall be construed as imposing any liabilities on the Holder to purchase any securities (upon exercise of this
Warrant or otherwise) or as a stockholder of the Company, whether such liabilities are asserted by the Company or by creditors of the Company. 
  

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 7. REGISTRATION AND REISSUANCE OF WARRANTS. 
 (a) Registration of Warrant. The Company shall register this Warrant, upon the records to be maintained by the Company for that purpose (the
“Warrant Register”), in the name of the record Holder hereof from time to time. The Company may deem and treat the registered Holder of this Warrant as the absolute owner hereof for the purpose of any exercise hereof or any
distribution to the Holder, and for all other purposes, absent actual notice to the contrary. The Company shall also register any transfer, exchange, reissuance or cancellation of any portion of this Warrant in the Warrant Register. 
 (b) Transfer of Warrant. This Warrant may be offered for sale, sold, transferred or assigned without the consent of the Company, except as may
otherwise be required by applicable securities laws. Subject to applicable securities laws, if this Warrant is to be transferred, the Holder shall surrender this Warrant to the Company together with all applicable transfer taxes, whereupon the
Company will forthwith issue and deliver upon the order of the Holder a new Warrant (in accordance with Section 7(e)), registered as the Holder may request, representing the right to purchase the number of Warrant Shares being transferred by
the Holder and, if less then the total number of Warrant Shares then underlying this Warrant is being transferred, a new Warrant (in accordance with Section 7(e)) to the Holder representing the right to purchase the number of Warrant Shares not
being transferred. 
 (c) Lost, Stolen or Mutilated Warrant. Upon receipt by the Company of evidence reasonably satisfactory to the
Company of the loss, theft, destruction or mutilation of this Warrant, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form or the provision of reasonable security by the
Holder to the Company and, in the case of mutilation, upon surrender and cancellation of this Warrant, the Company shall execute and deliver to the Holder a new Warrant (in accordance with Section 7(e)) representing the right to purchase the
Warrant Shares then underlying this Warrant. 
 (d) Exchangeable for Multiple Warrants. This Warrant is exchangeable, upon the
surrender hereof by the Holder at the principal office of the Company together with all applicable transfer taxes, for a new Warrant or Warrants (in accordance with Section 7(e)) representing in the aggregate the right to purchase the number of
Warrant Shares then underlying this Warrant, and each such new Warrant will represent the right to purchase such portion of such Warrant Shares as is designated by the Holder at the time of such surrender; provided, however, that the
Company shall not be required to issue Warrants for fractional shares of Common Stock hereunder. 
 (e) Issuance of New Warrants.
Whenever the Company is required to issue a new Warrant pursuant to the terms of this Warrant, such new Warrant shall (i) be of like tenor with this Warrant, (ii) represent, as indicated on the face of such new Warrant, the right to
purchase the Warrant Shares then underlying this Warrant (or in the case of a new Warrant being issued pursuant to Section 7(b) or Section 7(c), the Warrant Shares designated by the Holder which, when added to the number of shares of
Common Stock underlying the other new Warrants issued in connection with such issuance, does not exceed the number of Warrant Shares then underlying this Warrant), (iii) have an issuance date, as indicated on the face of such new Warrant which
is the same as the Issuance Date and (iv) have the same rights and conditions as this Warrant. 
  

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 8. NOTICES. Whenever notice is required to be given under this Warrant, unless otherwise provided
herein, such notice shall be given in accordance with the information set forth in the Warrant Register. The Company shall provide the Holder with prompt written notice of all actions taken pursuant to this Warrant, including, in reasonable detail,
a description of such action and the reason or reasons therefore. Without limiting the generality of the foregoing, the Company will give written notice to the Holder (i) immediately upon any adjustment of the Exercise Price, setting forth in
reasonable detail, and certifying, the calculation of such adjustment and (ii) at least 10 days prior to the date on which the Company closes its books or takes a record (A) with respect to any dividend or distribution upon the shares of
Common Stock, (B) with respect to any grants, issuances or sales of any Options, Convertible Securities or rights to purchase stock, warrants, securities or other property pro rata to the record holders of any class of shares of Common Stock or
(C) for determining rights to vote with respect to any Fundamental Transaction, dissolution or liquidation; provided, that in each case, such information shall be made known to the public prior to or in conjunction with such notice being
provided to the Holder. Upon receipt or delivery by the Company of any notice in accordance with the terms of this Warrant, unless the Company has in good faith determined that the matters relating to such notice do not constitute material,
nonpublic information relating to the Company or its subsidiaries, the Company shall within one (1) Business Day after any such receipt or delivery publicly disclose such material, nonpublic information on Form 8-K or otherwise. In the event
that the Company believes that a notice contains material, nonpublic information relating to the Company or its subsidiaries, the Company so shall indicate to such Holder contemporaneously with delivery of such notice, and in the absence of any such
indication, the Holder shall be allowed to presume that all matters relating to such notice do not constitute material, nonpublic information relating to the Company or its subsidiaries. 
 9. AMENDMENT AND WAIVER. Except as otherwise provided herein, the provisions of this Warrant may be amended and the Company may take any action
herein prohibited, or omit to perform any act herein required to be performed by it, only if the Company has obtained the written consent of the Holder. 
 10. LIMITATION OF LIABILITY. No provision hereof, in the absence of any affirmative action by Holder to exercise this Warrant to purchase Warrant Shares, and no enumeration herein of the rights or privileges of
Holder, shall give rise to any liability of Holder for the purchase price of any Warrant Shares or as a stockholder of the Company, whether such liability is asserted by the Company or by creditors of the Company. 
 11. GOVERNING LAW. This Warrant shall be governed by and construed and enforced in accordance with, and all questions concerning the construction,
validity, interpretation and performance of this Warrant shall be governed by, the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of New York or any other
jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of New York. 
 12. CONSTRUCTION;
HEADINGS. This Warrant shall be deemed to be jointly drafted by the Company and all the Investors and shall not be construed against any person as the drafter hereof. The headings of this Warrant are for convenience of reference and shall not
form part of, or affect the interpretation of, this Warrant. 
  

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 13. DISPUTE RESOLUTION. In the case of a dispute as to the determination of the Exercise Price or
the arithmetic calculation of the Warrant Shares, the Company shall submit the disputed determinations or arithmetic calculations via facsimile within two Trading Days of receipt of the Exercise Notice giving rise to such dispute, as the case may
be, to the Holder. If the Holder and the Company are unable to agree upon such determination or calculation of the Exercise Price or the Warrant Shares within five Trading Days of such disputed determination or arithmetic calculation being submitted
to the Holder, then the Company shall, within two Trading Days submit via facsimile (a) the disputed determination of the Exercise Price to an independent, reputable investment bank selected by the Company and approved by the Holder or
(b) the disputed arithmetic calculation of the Warrant Shares to the Company’s independent, outside accountant. The Company shall cause the investment bank or the accountant, as the case may be, to perform the determinations or
calculations and notify the Company and the Holder of the results no later than 10 Trading Days from the time it receives the disputed determinations or calculations. Such investment bank’s or accountant’s determination or calculation, as
the case may be, shall be binding upon all parties absent demonstrable error. The expenses of the investment bank and accountant will be borne by the Company unless the investment bank or accountant determines that the determination of the Exercise
Price or the arithmetic calculation of the Warrant Shares by the Holder was incorrect, in which case the expenses of the investment bank and accountant will be borne by the Holder. 
 14. REMEDIES, OTHER OBLIGATIONS, BREACHES AND INJUNCTIVE RELIEF. The remedies provided in this Warrant shall be cumulative and in addition to all
other remedies available under this Warrant and the Subscription Agreements, at law or in equity (including a decree of specific performance and/or other injunctive relief), and nothing herein shall limit the right of the Holder to pursue actual
damages for any failure by the Company to comply with the terms of this Warrant. The Company acknowledges that a breach by it of its obligations hereunder may cause irreparable harm to the Holder and that the remedy at law for any such breach may be
inadequate. The Company therefore agrees that, in the event of any such breach or threatened breach, the holder of this Warrant shall be entitled, in addition to all other available remedies, to seek an injunction restraining any breach.
Notwithstanding the foregoing or anything else herein or in the Subscription Agreements to the contrary, if the Company is for any reason unable to issue and deliver Warrant Shares upon exercise of this Warrant as required pursuant to the terms
hereof, the Company shall have no obligation to pay to the Holder any cash or other consideration or otherwise “net cash settle” this Warrant. 
 15. CERTAIN DEFINITIONS. For purposes of this Warrant, the following terms shall have the following meanings: 
 (a) “Black Scholes Cap” means the sum of (i) $1.00 (as equitably adjusted to reflect any events requiring an adjustment of the Exercise Price pursuant to Sections 2 or 3 hereof) plus
(ii) the Intrinsic Value; provided, however, that if the Intrinsic Value is less than or equal to zero (0), then the Black Scholes Cap shall mean $1.00 (as equitably adjusted to reflect any events requiring an adjustment of the
Exercise Price pursuant to Sections 2 or 3 hereof). 
 (b) “Black Scholes Value” means the value of this Warrant based on
the Black and Scholes Option Pricing Model obtained from the “OV” function on Bloomberg determined as of the day of consummation of the applicable Change of Control for pricing 

  

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purposes and reflecting: (i) a risk-free interest rate corresponding to the U.S. Treasury rate for a period equal to the time between the date of the
public announcement of the applicable Change of Control and the Expiration Date, (ii) an expected volatility equal to the lesser of (A) seventy-five percent (75%) and (B) the thirty (30) day volatility obtained from the HVT
function on Bloomberg as of the Trading Day immediately following the date of the public announcement of the applicable Change of Control, (iii) the underlying price per share used in such calculation shall be the sum of the price per share to
be received in cash, if any, plus the value of any non-cash consideration to be received, if any, by the holders of Common Stock upon the consummation of the applicable Change of Control and (iv) a remaining option time equal to the time
between the date of the public announcement of the applicable Change of Control and the Expiration Date. 
 (c) “Bloomberg”
means Bloomberg Financial Markets. 
 (d) “Change of Control” means any Fundamental Transaction other than (i) any
reorganization, recapitalization or reclassification of the Common Stock in which holders of the Company’s voting power immediately prior to such reorganization, recapitalization or reclassification continue after such reorganization,
recapitalization or reclassification to hold publicly traded securities and, directly or indirectly, the voting power of the surviving entity or entities necessary to elect a majority of the members of the board of directors (or their
equivalent if other than a corporation) of such entity or entities, or (ii) pursuant to a migratory merger effected solely for the purpose of changing the jurisdiction of incorporation of the Company. 
 (e) “Common Stock” means (i) the Company’s shares of Common Stock, $0.001 par value per share, and (ii) any share
capital into which such Common Stock shall have been changed or any share capital resulting from a reclassification of such Common Stock. 
 (f) “Convertible Securities” means any stock or securities (other than Options) directly or indirectly convertible into or exercisable or exchangeable for shares of Common Stock. 
 (g) “Eligible Market” means the Principal Market, The New York Stock Exchange, Inc., the NYSE Amex LLC, The Nasdaq
Stock Market, or the OTC Bulletin Board®. 
 (h) “Expiration Date” means the fifth anniversary of the Issuance Date or, if such date falls on a day other than a Trading Day or on which trading does not take place on the Principal Market (a
“Holiday”), the next date that is not a Holiday. 
 (i) “Fundamental Transaction” means that (A) the
Company shall, directly or indirectly, in one or more related transactions, (i) consolidate or merge with or into (whether or not the Company is the surviving corporation) another Person, or (ii) sell, assign, transfer, convey or otherwise
dispose of all or substantially all of the properties or assets of the Company to another Person, or (iii) allow another Person providing to make a purchase, tender or exchange offer that is accepted by the holders of more than 50% of the
outstanding shares of Common Stock (not including any shares of Common Stock held by the Person or Persons making or party to, or associated or affiliated with the Persons making or party to, such purchase, tender or exchange offer), or
(iv) consummate a stock purchase agreement or other business combination 

  

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(including, without limitation, a reorganization, recapitalization, spin-off or scheme of arrangement) with another Person whereby such other Person acquires
more than 50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making or party to, or associated or affiliated with the other Persons making or party to, such stock
purchase agreement or other business combination), or (v) reorganize, recapitalize or reclassify the Common Stock or (B) any “person” or “group” (as these terms are used for purposes of Sections 13(d) and 14(d) of the
Exchange Act) is or shall become the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of 50% of the aggregate ordinary voting power represented by issued and outstanding Common Stock.

 (j) “Intrinsic Value” means (i) the price per share to be received in cash, if any, plus the value of any non-cash
consideration to be received, if any, by the holders of Common Stock upon the consummation of a Change of Control less (ii) the Exercise Price. 
 (k) “Options” means any rights, warrants or options to subscribe for or purchase shares of Common Stock or Convertible Securities. 
 (l) “Parent Entity” of a Person means an entity that, directly or indirectly, controls the applicable Person and whose common stock or
equivalent equity security is quoted or listed on an Eligible Market, or, if there is more than one such Person or Parent Entity, the Person or Parent Entity with the largest public market capitalization as of the date of consummation of the
Fundamental Transaction. 
 (m) “Person” means an individual, a limited liability company, a partnership, a joint venture,
a corporation, a trust, an unincorporated organization, any other entity and a government or any department or agency thereof. 
 (n)
“Principal Market” means the Nasdaq Global Market. 
 (o) “Successor Entity” means the Person (or, if so
elected by the Holder, the Parent Entity) formed by, resulting from or surviving any Fundamental Transaction or the Person (or, if so elected by the Holder, the Parent Entity) with which such Fundamental Transaction shall have been entered into.

 (p) “Trading Day” means any day on which the Common Stock is traded on the Principal Market, or, if the Principal Market
is not the principal trading market for the Common Stock, then on the principal securities exchange or securities market on which the Common Stock is then traded; provided that “Trading Day” shall not include any day on which the
Common Stock is scheduled to trade on such exchange or market for less than 4.5 hours or any day that the Common Stock is suspended from trading during the final hour of trading on such exchange or market (or if such exchange or market does not
designate in advance the closing time of trading on such exchange or market, then during the hour ending at 4:00:00 p.m., New York Time). 
 (q) “Weighted Average Price” means, for any security as of any date, the dollar volume-weighted average price for such security on the Principal Market during the period beginning at 9:30:01 a.m., New York City time, and
ending at 4:00:00 p.m., New York City time, as reported by Bloomberg through its “Volume at Price” function or, if the foregoing does not apply, the dollar volume-weighted average price of such security in the over-the-counter market on


  

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the electronic bulletin board for such security during the period beginning at 9:30:01 a.m., New York City time, and ending at 4:00:00 p.m., New York City
time, as reported by Bloomberg, or, if no dollar volume-weighted average price is reported for such security by Bloomberg for such hours, the average of the highest closing bid price and the lowest closing ask price of any of the market makers for
such security as reported in the “pink sheets” by Pink Sheets LLC. If the Weighted Average Price cannot be calculated for such security on such date on any of the foregoing bases, the Weighted Average Price of such security on such date
shall be the fair market value as mutually determined by the Company and the Holder. If the Company and the Holder are unable to agree upon the fair market value of such security, then such dispute shall be resolved pursuant to Section 13 with
the term “Weighted Average Price” being substituted for the term “Exercise Price.” All such determinations shall be appropriately adjusted for any share dividend, share split or other similar transaction during such period.

 [Signature Page Follows] 
  

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 IN WITNESS WHEREOF, the Company has caused this Warrant to Purchase Common Stock to be duly
executed as of the Issuance Date set out above. 
  

			
	CERUS CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	









 EXHIBIT A 
 EXERCISE NOTICE 
 TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS 
 WARRANT TO PURCHASE COMMON STOCK 
 CERUS CORPORATION 
 The undersigned holder hereby exercises the right to purchase
             of the shares of Common Stock (“Warrant Shares”) of Cerus Corporation, a Delaware corporation (the “Company”), evidenced by the
attached Warrant to Purchase Common Stock (the “Warrant”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Warrant. 
 1. Exercise Price. The Holder intends that payment of the Exercise Price shall be made as (check one): 
  

	 	 ̈	Cash Exercise under Section 1(a). 

  

	 	 ̈	Cashless Exercise under Section 1(c). 

 2. Cash
Exercise. If the Holder has elected a Cash Exercise, the Holder shall pay the sum of $             to the Company in accordance with the terms of the Warrant. 
 3. Delivery of Warrant Shares. The Company shall deliver to the holder
            Warrant Shares in accordance with the terms of the Warrant. 
 4. Representations and Warranties. By its delivery of this Exercise Notice, the undersigned represents and warrants to the Company that in giving effect to the exercise evidenced hereby the Holder will not beneficially own in excess
of the number of shares of Common Stock (determined in accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended) permitted to be owned under Section 1(d) of this Warrant to which this notice relates. 
 Date:                      ,
         
  

			
	  

	Name of Registered Holder
		
	By:	 	  

	Name:	 	
	Title:	 	








 ACKNOWLEDGMENT 
 The Company hereby acknowledges this Exercise Notice. 
  

			
	CERUS CORPORATION
		
	By:	 	  

	Name:	 	
	Title: