Document:

exv10w17

Exhibit 10.17

HALOZYME THERAPEUTICS, INC.

STOCK OPTION AGREEMENT

     Halozyme Therapeutics, Inc. has granted to the Participant named in the Notice of Grant of
Stock Option (the “Grant Notice”) to which this Stock Option Agreement (the “Option Agreement”) is
attached an option (the “Option”) to purchase certain shares of Stock upon the terms and conditions
set forth in the Grant Notice and this Option Agreement. The Option has been granted pursuant to
and shall in all respects be subject to the terms and conditions of the Halozyme Therapeutics, Inc.
2008 Stock Plan (the “Plan”), as amended to the Date of Grant, the provisions of which are
incorporated herein by reference. By signing the Grant Notice, the Participant: (a) acknowledges
receipt of and represents that the Participant has read and is familiar with the Grant Notice, this
Option Agreement, the Plan and a prospectus for the Plan in the form most recently registered with
the Securities and Exchange Commission (the “Plan Prospectus”), (b) accepts the Option subject to
all of the terms and conditions of the Grant Notice, this Option Agreement and the Plan and (c)
agrees to accept as binding, conclusive and final all decisions or interpretations of the Committee
upon any questions arising under the Grant Notice, this Option Agreement or the Plan.

     1. Definitions and Construction.

          1.1 Definitions. Unless otherwise defined herein, capitalized terms shall have the meanings
assigned to such terms in the Grant Notice or the Plan.

          1.2 Construction. Captions and titles contained herein are for convenience only and shall not
affect the meaning or interpretation of any provision of this Option Agreement. Except when
otherwise indicated by the context, the singular shall include the plural and the plural shall
include the singular. Use of the term “or” is not intended to be exclusive, unless the context
clearly requires otherwise.

     2. Tax Consequences.

          2.1 Tax Status of Option. This Option is intended to have the tax status designated in the
Grant Notice.

               (a) Incentive Stock Option. If the Grant Notice so designates, this Option is intended to be
an Incentive Stock Option within the meaning of Section 422(b) of the Code, but the Company does
not represent or warrant that this Option qualifies as such. The Participant should consult with
the Participant’s own tax advisor regarding the tax effects of this Option and the requirements
necessary to obtain favorable income tax treatment under Section 422 of the Code, including, but
not limited to, holding period requirements. (NOTE TO PARTICIPANT: If the Option is exercised more
than three (3) months after the date on which you cease to be an Employee (other than by reason of
your death or permanent and total disability as defined in Section 22(e)(3) of the Code), the
Option will be treated as a Nonstatutory Stock Option and not as an Incentive Stock Option to the
extent required by Section 422 of the Code.)

 

 

               (b) Nonstatutory Stock Option. If the Grant Notice so designates, this Option is intended to
be a Nonstatutory Stock Option and shall not be treated as an Incentive Stock Option within the
meaning of Section 422(b) of the Code.

          2.2 ISO Fair Market Value Limitation. If the Grant Notice designates this Option as an
Incentive Stock Option, then to the extent that the Option (together with all Incentive Stock
Options granted to the Participant under all stock option plans of the Participating Company Group,
including the Plan) becomes exercisable for the first time during any calendar year for shares
having a Fair Market Value greater than One Hundred Thousand Dollars ($100,000), the portion of
such Options which exceeds such amount will be treated as Nonstatutory Stock Options. For purposes
of this Section 2.2, Options designated as Incentive Stock Options are taken into account in the
order in which they were granted, and the Fair Market Value of Stock is determined as of the time
the Option with respect to such Stock is granted. If the Code is amended to provide for a
different limitation from that set forth in this Section 2.2, such different limitation shall be
deemed incorporated herein effective as of the date required or permitted by such amendment to the
Code. If the Option is treated as an Incentive Stock Option in part and as a Nonstatutory Stock
Option in part by reason of the limitation set forth in this Section 2.2, the Participant may
designate which portion of such Option the Participant is exercising. In the absence of such
designation, the Participant shall be deemed to have exercised the Incentive Stock Option portion
of the Option first. Separate certificates representing each such portion shall be issued upon the
exercise of the Option. (NOTE TO PARTICIPANT: If the aggregate Exercise Price of the Option (that
is, the Exercise Price multiplied by the Number of Option Shares) plus the aggregate exercise price
of any other Incentive Stock Options you hold (whether granted pursuant to the Plan or any other
stock option plan of the Participating Company Group) is greater than One Hundred Thousand Dollars
($100,000), you should contact the Chief Financial Officer of the Company to ascertain whether the
entire Option qualifies as an Incentive Stock Option.)

     3. Administration.

          All questions of interpretation concerning this Option Agreement shall be determined by the
Committee. All determinations by the Committee shall be final and binding upon all persons having
an interest in the Option. Any Officer shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the responsibility of or which
is allocated to the Company herein, provided the Officer has been delegated such authority by the
Committee with respect to such matter, right, obligation, or election.

     4. Exercise of the Option.

          4.1 Right to Exercise. Except as otherwise provided herein, the Option shall be exercisable
on and after the Initial Vesting Date and prior to the termination of the Option (as provided in
Section 6) in an amount not to exceed the number of Vested Shares less the number of shares
previously acquired upon exercise of the Option. In no event shall the Option be exercisable for
more shares than the Number of Option Shares, as adjusted pursuant to Section 9.

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          4.2 Method of Exercise. Exercise of the Option shall be by means of electronic or written
notice (the “Exercise Notice”) in a form authorized by the Company. An electronic Exercise Notice
must be digitally signed or authenticated by the Participant in such manner as required by the
notice and transmitted to the Company or an authorized representative of the Company (including a
third-party administrator designated by the Company). In the event that the Participant is not
authorized or is unable to provide an electronic Exercise Notice, the Option shall be exercised by
a written Exercise Notice addressed to the Company, which shall be signed by the Participant and
delivered in person, by certified or registered mail, return receipt requested, by confirmed
facsimile transmission, or by such other means as the Company may permit, to the Company, or an
authorized representative of the Company (including a third-party administrator designated by the
Company). Each Exercise Notice, whether electronic or written, must state the Participant’s
election to exercise the Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Participant’s investment intent
with respect to such shares as may be required pursuant to the provisions of this Option Agreement.
Further, each Exercise Notice must be received by the Company prior to the termination of the
Option as set forth in Section 6 and must be accompanied by full payment of the aggregate Exercise
Price for the number of shares of Stock being purchased. The Option shall be deemed to be
exercised upon receipt by the Company of such electronic or written Exercise Notice and the
aggregate Exercise Price.

          4.3 Payment of Exercise Price.

               (a) Forms of Consideration Authorized. Except as otherwise provided below, payment of the
aggregate Exercise Price for the number of shares of Stock for which the Option is being exercised
shall be made (i) in cash or by check or cash equivalent, (ii) if permitted by the Company, by
tender to the Company, or attestation to the ownership, of whole shares of Stock owned by the
Participant having a Fair Market Value not less than the aggregate Exercise Price, (iii) by means
of a Cashless Exercise, as defined in Section 4.3(b), or (iv) by any combination of the foregoing.

               (b) Limitations on Forms of Consideration.

                    (i) Tender of Stock. Notwithstanding the foregoing, the Option may not be exercised by tender
to the Company, or attestation to the ownership, of shares of Stock to the extent such tender or
attestation would constitute a violation of the provisions of any law, regulation or agreement
restricting the redemption of the Company’s Stock. If required by the Company, the Option may not
be exercised by tender to the Company, or attestation to the ownership, of shares of Stock unless
such shares either have been owned by the Participant for more than six (6) months or such other
period, if any, required by the Company (and not used for another Option exercise by attestation
during such period) or were not acquired, directly or indirectly, from the Company.

                    (ii) Cashless Exercise. A “Cashless Exercise” means the delivery of a properly executed
notice together with irrevocable instructions to a broker in a form acceptable to the Company
providing for the assignment to the Company of the proceeds of a sale or loan with respect to some
or all of the shares of Stock acquired upon the exercise of the Option pursuant to a program or
procedure approved by the Company (including, without

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limitation, through an exercise complying with the provisions of Regulation T as promulgated
from time to time by the Board of Governors of the Federal Reserve System). The Company reserves,
at any and all times, the right, in the Company’s sole and absolute discretion, to establish,
decline to approve or terminate any such program or procedure, including with respect to the
Participant notwithstanding that such program or procedures may be available to others.

          4.4 Tax Withholding. At the time the Option is exercised, in whole or in part, or at any time
thereafter as requested by the Company, the Participant hereby authorizes withholding from payroll
and any other amounts payable to the Participant, and otherwise agrees to make adequate provision
for (including by means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding obligations of the
Participating Company Group, if any, which arise in connection with the Option. The Company shall
have no obligation to deliver shares of Stock until the tax withholding obligations of the
Participating Company Group have been satisfied by the Participant.

          4.5 Beneficial Ownership of Shares; Certificate Registration. The Participant hereby
authorizes the Company, in its sole discretion, to deposit for the benefit of the Participant with
any broker with which the Participant has an account relationship of which the Company has notice
any or all shares acquired by the Participant pursuant to the exercise of the Option. Except as
provided by the preceding sentence, a certificate for the shares as to which the Option is
exercised shall be registered in the name of the Participant, or, if applicable, in the names of
the heirs of the Participant.

          4.6 Restrictions on Grant of the Option and Issuance of Shares. The grant of the Option and
the issuance of shares of Stock upon exercise of the Option shall be subject to compliance with all
applicable requirements of federal, state or foreign law with respect to such securities. The
Option may not be exercised if the issuance of shares of Stock upon exercise would constitute a
violation of any applicable federal, state or foreign securities laws or other law or regulations
or the requirements of any stock exchange or market system upon which the Stock may then be listed.
In addition, the Option may not be exercised unless (i) a registration statement under the
Securities Act shall at the time of exercise of the Option be in effect with respect to the shares
issuable upon exercise of the Option or (ii) in the opinion of legal counsel to the Company, the
shares issuable upon exercise of the Option may be issued in accordance with the terms of an
applicable exemption from the registration requirements of the Securities Act. THE PARTICIPANT IS
CAUTIONED THAT THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE PARTICIPANT MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE
OPTION IS VESTED. The inability of the Company to obtain from any regulatory body having
jurisdiction the authority, if any, deemed by the Company’s legal counsel to be necessary to the
lawful issuance and sale of any shares subject to the Option shall relieve the Company of any
liability in respect of the failure to issue or sell such shares as to which such requisite
authority shall not have been obtained. As a condition to the exercise of the Option, the Company
may require the Participant to satisfy any qualifications that may be necessary or appropriate, to
evidence compliance with any applicable law or regulation and to make any representation or
warranty with respect thereto as may be requested by the Company.

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          4.7 Fractional Shares. The Company shall not be required to issue fractional shares upon the
exercise of the Option.

     5. Nontransferability of the Option.

          During the lifetime of the Participant, the Option shall be exercisable only by the
Participant or the Participant’s guardian or legal representative. The Option shall not be subject
in any manner to anticipation, alienation, sale, exchange, transfer, assignment, pledge,
encumbrance, or garnishment by creditors of the Participant or the Participant’s beneficiary,
except transfer by will or by the laws of descent and distribution. Following the death of the
Participant, the Option, to the extent provided in Section 7, may be exercised by the Participant’s
legal representative or by any person empowered to do so under the deceased Participant’s will or
under the then applicable laws of descent and distribution.

     6. Termination of the Option.

          The Option shall terminate and may no longer be exercised after the first to occur of (a) the
close of business on the Option Expiration Date, (b) the close of business on the last date for
exercising the Option following termination of the Participant’s Service as described in Section 7,
or (c) a Change in Control to the extent provided in Section 8.

     7. Effect of Termination of Service.

          7.1 Option Exercisability. The Option shall terminate immediately upon the Participant’s
termination of Service to the extent that it is then unvested and shall be exercisable after the
Participant’s termination of Service to the extent it is then vested only during the applicable
time period as determined below and thereafter shall terminate.

               (a) Disability. If the Participant’s Service terminates because of the Disability of the
Participant, the Option, to the extent unexercised and exercisable for Vested Shares on the date on
which the Participant’s Service terminated, may be exercised by the Participant (or the
Participant’s guardian or legal representative) at any time prior to the expiration of twelve (12)
months after the date on which the Participant’s Service terminated, but in any event no later than
the Option Expiration Date.

               (b) Death. If the Participant’s Service terminates because of the death of the Participant,
the Option, to the extent unexercised and exercisable for Vested Shares on the date on which the
Participant’s Service terminated, may be exercised by the Participant’s legal representative or
other person who acquired the right to exercise the Option by reason of the Participant’s death at
any time prior to the expiration of twelve (12) months after the date on which the Participant’s
Service terminated, but in any event no later than the Option Expiration Date. The Participant’s
Service shall be deemed to have terminated on account of death if the Participant dies within three
(3) months after the Participant’s termination of Service.

               (c) Other Termination of Service. If the Participant’s Service terminates for any reason,
except Disability or death, the Option, to the extent unexercised and exercisable for Vested Shares
by the Participant on the date on which the Participant’s Service terminated, may be exercised by
the Participant at any time prior to the expiration of three (3)
months after the date on which the Participant’s Service terminated, but in any event no later
than the Option Expiration Date.

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          7.2 Extension if Exercise Prevented by Law. Notwithstanding the foregoing, if the exercise of
the Option within the applicable time periods set forth in Section 7.1 is prevented by the
provisions of Section 4.6, the Option shall remain exercisable until three (3) months after the
date the Participant is notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

     8. Effect of Change in Control.

          In the event of a Change in Control, the surviving, continuing, successor, or purchasing
entity or parent thereof, as the case may be (the “Acquiror”), may, without the consent of the
Participant, assume or continue in full force and effect the Company’s rights and obligations under
the Option or substitute for the Option a substantially equivalent option for the Acquiror’s stock.
For purposes of this Section, the Option shall be deemed assumed if, following the Change in
Control, the Option confers the right to receive, subject to the terms and conditions of the Plan
and this Option Agreement, for each share of Stock subject to the Option immediately prior to the
Change in Control, the consideration (whether stock, cash, other securities or property or a
combination thereof) to which a holder of a share of Stock on the effective date of the Change in
Control was entitled; provided, however, that if such consideration is not solely common stock of
the Acquiror, the Committee may, with the consent of the Acquiror, provide for the consideration to
be received upon the exercise of the Option, for each share of Stock subject to the Option, to
consist solely of common stock of the Acquiror equal in Fair Market Value to the per share
consideration received by holders of Stock pursuant to the Change in Control. In the event that
the Acquiring Corporation elects not to assume or substitute for the Option in connection with a
Change in Control, the exercisability and vesting of the Option (if the Participant’s Service has
not terminated prior to such date) shall be accelerated, effective immediately before the date of
the Change in Control, contingent upon the consummation of the Change in Control. The Option shall
terminate and cease to be outstanding effective as of the time of consummation of the Change in
Control to the extent that the Option is neither assumed nor continued by the Acquiror in
connection with the Change in Control nor exercised as of the date of the Change in Control.

     9. Adjustments for Changes in Capital Structure.

          Subject to any required action by the stockholders of the Company, in the event of any change
in the Stock effected without receipt of consideration by the Company, whether through merger,
consolidation, reorganization, reincorporation, recapitalization, reclassification, stock dividend,
stock split, reverse stock split, split-up, split-off, spin-off, combination of shares, exchange of
shares, or similar change in the capital structure of the Company, or in the event of payment of a
dividend or distribution to the stockholders of the Company in a form other than Stock (excepting
normal cash dividends) that has a material effect on the Fair Market Value of shares of Stock,
appropriate adjustments shall be made in the number, Exercise Price and kind of shares subject to
the Option, in order to prevent dilution or enlargement of the Participant’s rights under the
Option. For purposes of the foregoing, conversion of any convertible securities of the Company
shall not be treated as “effected without receipt of consideration by the

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Company.” If a majority of the shares which are of the same class as the shares that are
subject to the Option are exchanged for, converted into, or otherwise become (whether or not
pursuant to an Ownership Change Event) shares of another corporation (the “New Shares”), the
Committee may unilaterally amend the Option to provide that such Option is exercisable for New
Shares. In the event of any such amendment, the number of shares subject to, and the exercise
price per share of, the Option shall be adjusted in a fair and equitable manner as determined by
the Committee, in its discretion. Any fractional share resulting from an adjustment pursuant to
this Section shall be rounded down to the nearest whole number, and in no event may the Exercise
Price be decreased to an amount less than the par value, if any, of the Stock subject to the
Option. The Committee in its sole discretion, may also make such adjustments in the terms of the
Option to reflect, or related to, such changes in the capital structure of the Company or
distributions as it deems appropriate. The adjustments determined by the Committee pursuant to
this Section shall be final, binding and conclusive.

     10. Rights as a Stockholder, Director, Employee or Consultant.

          The Participant shall have no rights as a stockholder with respect to any shares covered by
the Option until the date of the issuance of the shares for which the Option has been exercised (as
evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer
agent of the Company). No adjustment shall be made for dividends, distributions or other rights
for which the record date is prior to the date the shares are issued, except as provided in Section
9. If the Participant is an Employee, the Participant understands and acknowledges that, except as
otherwise provided in a separate, written employment agreement between a Participating Company and
the Participant, the Participant’s employment is “at will” and is for no specified term. Nothing
in this Option Agreement shall confer upon the Participant any right to continue in the Service of
a Participating Company or interfere in any way with any right of the Participating Company Group
to terminate the Participant’s Service as a Director, an Employee or Consultant, as the case may
be, at any time.

     11. Notice of Sales Upon Disqualifying Disposition.

          The Participant shall dispose of the shares acquired pursuant to the Option only in accordance
with the provisions of this Option Agreement. In addition, if the Grant Notice designates this
Option as an Incentive Stock Option, the Participant shall (a) promptly notify the Chief Financial
Officer of the Company if the Participant disposes of any of the shares acquired pursuant to the
Option within one (1) year after the date the Participant exercises all or part of the Option or
within two (2) years after the Date of Grant and (b) provide the Company with a description of the
circumstances of such disposition. Until such time as the Participant disposes of such shares in a
manner consistent with the provisions of this Option Agreement, unless otherwise expressly
authorized by the Company, the Participant shall hold all shares acquired pursuant to the Option in
the Participant’s name (and not in the name of any nominee) for the one-year period immediately
after the exercise of the Option and the two-year period immediately after Date of Grant. At any
time during the one-year or two-year periods set forth above, the Company may place a legend on any
certificate representing shares acquired pursuant to the Option requesting the transfer agent for
the Company’s Stock to notify the Company of any such transfers. The obligation of the Participant
to notify the Company of any such transfer
shall continue notwithstanding that a legend has been placed on the certificate pursuant to
the preceding sentence.

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     12. Legends.

          The Company may at any time place legends referencing any applicable federal, state or foreign
securities law restrictions on all certificates representing shares of Stock subject to the
provisions of this Option Agreement. The Participant shall, at the request of the Company,
promptly present to the Company any and all certificates representing shares acquired pursuant to
the Option in the possession of the Participant in order to carry out the provisions of this
Section. Unless otherwise specified by the Company, legends placed on such certificates may
include, but shall not be limited to, the following:

“THE SHARES EVIDENCED BY THIS CERTIFICATE WERE ISSUED BY THE CORPORATION TO THE
REGISTERED HOLDER UPON EXERCISE OF AN INCENTIVE STOCK OPTION AS DEFINED IN SECTION
422 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (“ISO”). IN ORDER TO OBTAIN
THE PREFERENTIAL TAX TREATMENT AFFORDED TO ISOs, THE SHARES SHOULD NOT BE
TRANSFERRED PRIOR TO [INSERT DISQUALIFYING DISPOSITION DATE HERE]. SHOULD THE
REGISTERED HOLDER ELECT TO TRANSFER ANY OF THE SHARES PRIOR TO THIS DATE AND FOREGO
ISO TAX TREATMENT, THE TRANSFER AGENT FOR THE SHARES SHALL NOTIFY THE CORPORATION
IMMEDIATELY. THE REGISTERED HOLDER SHALL HOLD ALL SHARES PURCHASED UNDER THE
INCENTIVE STOCK OPTION IN THE REGISTERED HOLDER’S NAME (AND NOT IN THE NAME OF ANY
NOMINEE) PRIOR TO THIS DATE OR UNTIL TRANSFERRED AS DESCRIBED ABOVE.”

     13. Miscellaneous Provisions.

          13.1 Termination or Amendment. The Committee may terminate or amend the Plan or the Option at
any time; provided, however, that except as provided in Section 8 in connection with a Change in
Control, no such termination or amendment may adversely affect the Option or any unexercised
portion hereof without the consent of the Participant unless such termination or amendment is
necessary to comply with any applicable law or government regulation. No amendment or addition to
this Option Agreement shall be effective unless in writing.

          13.2 Further Instruments. The parties hereto agree to execute such further instruments and to
take such further action as may reasonably be necessary to carry out the intent of this Option
Agreement.

          13.3 Binding Effect. Subject to the restrictions on transfer set forth herein, this Option
Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective
heirs, executors, administrators, successors and assigns.

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          13.4 Delivery of Documents and Notices. Any document relating to participation in the Plan or
any notice required or permitted hereunder shall be given in writing and shall be deemed
effectively given (except to the extent that this Option Agreement provides for effectiveness only
upon actual receipt of such notice) upon personal delivery, electronic delivery at the e-mail
address, if any, provided for the Participant by a Participating Company, or upon deposit in the
U.S. Post Office or foreign postal service, by registered or certified mail, or with a nationally
recognized overnight courier service, with postage and fees prepaid, addressed to the other party
at the address of such party set forth in the Grant Notice or at such other address as such party
may designate in writing from time to time to the other party.

               (a) Description of Electronic Delivery. The Plan documents, which may include but do not
necessarily include: the Plan, the Grant Notice, this Option Agreement, the Plan Prospectus, and
any reports of the Company provided generally to the Company’s stockholders, may be delivered to
the Participant electronically. In addition, the Participant may deliver electronically the Grant
Notice and Exercise Notice called for by Section 4.2 to the Company or to such third party involved
in administering the Plan as the Company may designate from time to time. Such means of electronic
delivery may include but do not necessarily include the delivery of a link to a Company intranet or
the internet site of a third party involved in administering the Plan, the delivery of the document
via e-mail or such other means of electronic delivery specified by the Company.

               (b) Consent to Electronic Delivery. The Participant acknowledges that the Participant has
read Section 13.4(a) of this Option Agreement and consents to the electronic delivery of the Plan
documents and the delivery of the Grant Notice and Exercise Notice, as described in Section
13.4(a). The Participant acknowledges that he or she may receive from the Company a paper copy of
any documents delivered electronically at no cost to the Participant by contacting the Company by
telephone or in writing. The Participant further acknowledges that the Participant will be
provided with a paper copy of any documents if the attempted electronic delivery of such documents
fails. Similarly, the Participant understands that the Participant must provide the Company or any
designated third-party administrator with a paper copy of any documents if the attempted electronic
delivery of such documents fails. The Participant may revoke his or her consent to the electronic
delivery of documents described in Section 13.4(a) or may change the electronic mail address to
which such documents are to be delivered (if Participant has provided an electronic mail address)
at any time by notifying the Company of such revoked consent or revised e-mail address by
telephone, postal service or electronic mail. Finally, the Participant understands that he or she
is not required to consent to electronic delivery of documents described in Section 13.4(a).

          13.5 Integrated Agreement. The Grant Notice, this Option Agreement and the Plan shall
constitute the entire understanding and agreement of the Participant and the Participating Company
Group with respect to the subject matter contained herein and supersede any prior agreements,
understandings, restrictions, representations, or warranties among the Participant and the
Participating Company Group with respect to such subject matter. To the extent contemplated
herein, the provisions of the Grant Notice, the Option Agreement and the Plan shall survive any
exercise of the Option and shall remain in full force and effect.

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          13.6 Applicable Law. This Option Agreement shall be governed by the laws of the State of
California as such laws are applied to agreements between California residents entered into and to
be performed entirely within the State of California.

          13.7 Counterparts. The Grant Notice may be executed in counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same instrument.

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	TM Incentive Stock Option

	 	Participant:	 	 
	 

	 	 	 	 
	TM Nonstatutory Stock Option
	 	 	 	 
	 

	 	Date:	 	 
	 

	 	 	 	 

STOCK OPTION EXERCISE NOTICE

Halozyme Therapeutics, Inc.

Attention: Stock Administration

11388 Sorrento Valley Road

San Diego, CA 92121

     Ladies and Gentlemen:

     1. Option. I was granted an option (the “Option”) to purchase shares of the common
stock (the “Shares”) of Halozyme Therapeutics, Inc. (the “Company”) pursuant to the Company’s 2008
Stock Plan (the “Plan”), my Notice of Grant of Stock Option (the “Grant Notice”) and my Stock
Option Agreement (the “Option Agreement”) as follows:

	 	 	 	 	 
	 

	 	Date of Grant:
	 	                                        
	 
	 	 	 	 
	 

	 	Number of Option Shares:
	 	                                        
	 
	 	 	 	 
	 

	 	Exercise Price per Share:
	 	$                                         

     2. Exercise of Option. I hereby elect to exercise the Option to purchase the
following number of Shares, all of which are Vested Shares in accordance with the Grant Notice and
the Option Agreement:

	 	 	 	 	 
	 

	 	Total Shares Purchased:
	 	                                        
	 
	 

	 	Total Exercise Price (Total Shares X Price per Share)
	 	$                                         

     3. Payments. I enclose payment in full of the total exercise price for the Shares in
the following form(s), as authorized by my Option Agreement:

	 	 	 	 	 
	 

	 	TM Cash:
	 	$                    
	 
	 	 	 	 
	 

	 	                    	 	 
	 
	 	 	 	 
	 

	 	TM Check:
	 	$                                        
	 
	 	 	 	 
	 

	 	TM Tender of Company Stock:
	 	Contact Plan Administrator
	 
	 	 	 	 
	 

	 	TM Cashless Exercise (same-day sale):
	 	Contact Plan Administrator

 

     4. Tax Withholding. I authorize payroll withholding and otherwise will make adequate
provision for the federal, state, local and foreign tax withholding obligations of the Company, if
any, in connection with the Option. If I am exercising a Nonstatutory Stock Option, I enclose
payment in full of my withholding taxes, if any, as follows:

(Contact Plan Administrator for amount of tax due.)

	 	 	 	 	 
	 

	 	TM Cash:
	 	$                    
	 
	 	 	 	 
	 

	 	                    	 	 
	 
	 	 	 	 
	 

	 	TM Check:
	 	$                                        
	 
	 	 	 	 
	 

	 	TM Tender of Company Stock:
	 	Contact Plan Administrator
	 
	 	 	 	 
	 

	 	TM Cashless Exercise (same-day sale):
	 	Contact Plan Administrator

     5. Participant Information.

	 	 	 	 	 	 	 
	 

	 	My address is:	 	 	 	 
	 	 	 	 	 
	 
	 	 	 	 	 	 
	 
	 	 	 	 	 
	 
	 	 	 	 	 	 
	 	 	My Social Security Number is:	 	 
	 

	 	 	 	 	 	 

     6. Notice of Disqualifying Disposition. If the Option is an Incentive Stock Option, I
agree that I will promptly notify the Chief Financial Officer of the Company if I transfer any of
the Shares within one (1) year from the date I exercise all or part of the Option or within two (2)
years of the Date of Grant.

     7. Binding Effect. I agree that the Shares are being acquired in accordance with and
subject to the terms, provisions and conditions of the Grant Notice, the Option Agreement and the
Plan, to all of which I hereby expressly assent. This Agreement shall inure to the benefit of and
be binding upon my heirs, executors, administrators, successors and assigns.

	 	 	 	 	 
	 	Very truly yours,

 	 
	 	
 	 
	 	(Signature) 	 
	 	 	 
	 

Receipt of the above is hereby acknowledged.

HALOZYME THERAPEUTICS, INC.

	 	 	 	 	 
	By:
	 	 	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	Title:
	 	 	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	Dated:
	 	 	 	 
	 

	 	 

	 	 

2exv10w18

Exhibit 10.18

HALOZYME THERAPEUTICS, INC.

RESTRICTED STOCK AGREEMENT

     Halozyme Therapeutics, Inc. has granted to the Participant named in the Notice of Grant of
Restricted Stock (the “Grant Notice”) to which this Restricted Stock Agreement (the “Agreement”) is
attached an Award consisting of Shares subject to the terms and conditions set forth in the Grant
Notice and this Agreement. The Award has been granted pursuant to the Halozyme Therapeutics, Inc.
2008 Stock Plan (the “Plan”), as amended to the Date of Grant, the provisions of which are
incorporated herein by reference. By signing the Grant Notice, the Participant: (a) acknowledges
receipt of and represents that the Participant has read and is familiar with the Grant Notice, this
Agreement, the Plan and a Plan prospectus for the Shares in the form most recently registered with
the Securities and Exchange Commission (the “Plan Prospectus”), (b) accepts the Award subject to
all of the terms and conditions of the Grant Notice, this Agreement and the Plan and (c) agrees to
accept as binding, conclusive and final all decisions or interpretations of the Committee upon any
questions arising under the Grant Notice, this Agreement or the Plan.

     1. Definitions and Construction.

          1.1 Definitions. Unless otherwise defined herein, capitalized terms shall have the meanings
assigned to such terms in the Grant Notice or the Plan.

          1.2 Construction. Captions and titles contained herein are for convenience only and shall not
affect the meaning or interpretation of any provision of this Agreement. Except when otherwise
indicated by the context, the singular shall include the plural and the plural shall include the
singular. Use of the term “or” is not intended to be exclusive, unless the context clearly
requires otherwise.

     2. Administration.

          All questions of interpretation concerning the Grant Notice and this Agreement shall be
determined by the Committee. All determinations by the Committee shall be final and binding upon
all persons having an interest in the Award. Any Officer of a Participating Company shall have the
authority to act on behalf of the Company with respect to any matter, right, obligation, or
election which is the responsibility of or which is allocated to the Company herein, provided the
Officer has been delegated such authority by the Committee with respect to such matter, right,
obligation, or election.

     3. The Award.

          3.1 Grant and Issuance of Shares. On the Date of Grant, the Participant shall acquire and the
Company shall issue, subject to the provisions of this Agreement, a number of Shares equal to the
Total Number of Shares set forth in the Grant Notice. As a condition to the issuance of the
Shares, the Participant shall execute and deliver to the Company along with the Grant Notice the
Assignment Separate from Certificate duly endorsed (with date and number of Shares blank) in the
form attached to the Grant Notice.

 

 

          3.2 No Monetary Payment Required. The Participant is not required to make any monetary
payment (other than applicable tax withholding, if any) as a condition to receiving the Shares, the
consideration for which shall be past services actually rendered and/or future services to be
rendered to a Participating Company or for its benefit. Notwithstanding the foregoing, if required
by applicable state corporate law, the Participant shall furnish consideration in the form of cash
or past services rendered to a Participating Company or for its benefit having a value not less
than the par value of the Shares issued pursuant to the Award.

          3.3 Beneficial Ownership of Shares; Certificate Registration. The Participant hereby
authorizes the Company, in its sole discretion, to deposit the Shares with the Company’s transfer
agent, including any successor transfer agent, to be held in book entry form during the term of the
Escrow pursuant to Section 6. Furthermore, the Participant hereby authorizes the Company, in its
sole discretion, to deposit, following the term of such Escrow, for the benefit of the Participant
with any broker with which the Participant has an account relationship of which the Company has
notice any or all Shares which are no longer subject to such Escrow. Except as provided by the
foregoing, a certificate for the Shares shall be registered in the name of the Participant, or, if
applicable, in the names of the heirs of the Participant.

          3.4 Issuance of Shares in Compliance with Law. The issuance of the Shares shall be subject to
compliance with all applicable requirements of federal, state or foreign law with respect to such
securities. No Shares shall be issued hereunder if their issuance would constitute a violation of
any applicable federal, state or foreign securities laws or other law or regulations or the
requirements of any stock exchange or market system upon which the Stock may then be listed. The
inability of the Company to obtain from any regulatory body having jurisdiction the authority, if
any, deemed by the Company’s legal counsel to be necessary to the lawful issuance of any Shares
shall relieve the Company of any liability in respect of the failure to issue such Shares as to
which such requisite authority shall not have been obtained. As a condition to the issuance of the
Shares, the Company may require the Participant to satisfy any qualifications that may be necessary
or appropriate, to evidence compliance with any applicable law or regulation and to make any
representation or warranty with respect thereto as may be requested by the Company.

     4. Vesting of Shares.

          The Shares shall vest and become Vested Shares as provided in the Grant Notice. For purposes
of determining the number of Vested Shares following an Ownership Change Event, credited Service
shall include all Service with any corporation which is a Participating Company at the time the
Service is rendered, whether or not such corporation is a Participating Company both before and
after the Ownership Change Event.

     5. Company Reacquisition Right.

          5.1 Grant of Company Reacquisition Right. In the event that (a) the Participant’s Service
terminates for any reason or no reason, with or without cause, or (b) the Participant, the
Participant’s legal representative, or other holder of the Shares, attempts to sell, exchange,
transfer, pledge, or otherwise dispose of (other than pursuant to an Ownership Change Event),
including, without limitation, any transfer to a nominee or agent of the Participant, any

2

 

Shares which are not Vested Shares (“Unvested Shares”), the Company shall automatically
reacquire the Unvested Shares, and the Participant shall not be entitled to any payment therefor
(the “Company Reacquisition Right”).

          5.2 Ownership Change Event. Upon the occurrence of an Ownership Change Event, any and all
new, substituted or additional securities or other property to which the Participant is entitled by
reason of the Participant’s ownership of Unvested Shares shall be immediately subject to the
Company Reacquisition Right and included in the terms “Shares,” “Stock” and “Unvested Shares” for
all purposes of the Company Reacquisition Right with the same force and effect as the Unvested
Shares immediately prior to the Ownership Change Event. For purposes of determining the number of
Vested Shares following an Ownership Change Event, credited Service shall include all Service with
any corporation which is a Participating Company at the time the Service is rendered, whether or
not such corporation is a Participating Company both before and after the Ownership Change Event.

     6. Escrow.

          6.1 Appointment of Agent. To ensure that Shares subject to the Company Reacquisition Right
will be available for reacquisition, the Participant and the Company hereby appoint the Secretary
of the Company, or any other person designated by the Company, as their agent and as
attorney-in-fact for the Participant (the “Agent”) to hold any and all Unvested Shares and to sell,
assign and transfer to the Company any such Unvested Shares reacquired by the Company pursuant to
the Company Reacquisition Right. The Participant understands that appointment of the Agent is a
material inducement to make this Agreement and that such appointment is coupled with an interest
and is irrevocable. The Agent shall not be personally liable for any act the Agent may do or omit
to do hereunder as escrow agent, agent for the Company, or attorney-in-fact for the Participant
while acting in good faith and in the exercise of the Agent’s own good judgment, and any act done
or omitted by the Agent pursuant to the advice of the Agent’s own attorneys shall be conclusive
evidence of such good faith. The Agent may rely upon any letter, notice or other document executed
by any signature purporting to be genuine and may resign at any time.

          6.2 Establishment of Escrow. The Participant authorizes the Company to deposit the Unvested
Shares with the Company’s transfer agent to be held in book entry form, as provided in Section 3.3,
and the Participant agrees to deliver to and deposit with the Agent each certificate, if any,
evidencing the Shares and an Assignment Separate from Certificate with respect to such book entry
shares and each such certificate duly endorsed (with date and number of Shares blank) in the form
attached to the Grant Notice, to be held by the Agent under the terms and conditions of this
Section 6 (the “Escrow”). Upon the occurrence of an Ownership Change Event or a change, as
described in Section 8, in the character or amount of any outstanding stock of the corporation the
stock of which is subject to the provisions of this Agreement, any and all new, substituted or
additional securities or other property to which the Participant is entitled by reason of his or
her ownership of the Shares that remain, following such Ownership Change Event or change described
in Section 8, subject to the Company Reacquisition Right shall be immediately subject to the Escrow
to the same extent as the Shares immediately before such event. The Company shall bear the
expenses of the Escrow.

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          6.3 Delivery of Shares to Participant. The Escrow shall continue with respect to any Shares
for so long as such Shares remain subject to the Company Reacquisition Right. Upon termination of
the Reacquisition Right with respect to Shares, the Company shall so notify the Agent and direct
the Agent to deliver such number of Shares to the Participant. As soon as practicable after
receipt of such notice, the Agent shall cause to be delivered to the Participant the Shares
specified by such notice, and the Escrow shall terminate with respect to such Shares.

     7. Tax Matters.

          7.1 Tax Withholding.

               (a) In General. At the time the Grant Notice is executed, or at any time thereafter as
requested by a Participating Company, the Participant hereby authorizes withholding from payroll
and any other amounts payable to the Participant, and otherwise agrees to make adequate provision
for, any sums required to satisfy the federal, state, local and foreign tax withholding obligations
of the Participating Company, if any, which arise in connection with the Award, including, without
limitation, obligations arising upon (a) the transfer of Shares to the Participant, (b) the lapsing
of any restriction with respect to any Shares, (c) the filing of an election to recognize tax
liability, or (d) the transfer by the Participant of any Shares. The Company shall have no
obligation to deliver the Shares or to release any Shares from the Escrow established pursuant to
Section 6 until the tax withholding obligations of the Participating Company have been satisfied by
the Participant.

               (b) Assignment of Sale Proceeds; Payment of Tax Withholding by Check. Subject to compliance
with applicable law and the Company’s Insider Trading Policy, the Participant shall satisfy the
Participating Company’s tax withholding obligations in accordance with procedures established by
the Company providing for delivery by the Participant to the Company or a broker approved by the
Company of properly executed instructions, in a form approved by the Company, providing for the
assignment to the Company of the proceeds of a sale with respect to some or all of the Shares
becoming Vested Shares on a Vesting Date as provided in the Grant Notice. Notwithstanding the
foregoing, the Participant may elect to pay by check the amount of the Participating Company’s tax
withholding obligations arising on any Vesting Date by delivering written notice of such election
to the Company on a form specified by the Company for this purpose at least thirty (30) days (or
such other period established by the Company) prior to such Vesting Date. By making such election,
the Participant agrees to deliver a check for the full amount of the required tax withholding to
the applicable Participating Company on or before the third business day following the Vesting
Date. If the Participant elects to pay the required tax withholding by check but fails to make
such payment as required by the preceding sentence, the Company is hereby authorized at its
discretion, to satisfy the tax withholding obligations through any other means authorized by this
Section 7, including by effecting a sale of some or all of the Shares becoming Vested Shares on the
Vesting Date, withholding from payroll and any other amounts payable to the Participant or by
withholding Shares in accordance with Section 7.1(c).

4

 

               (c) Withholding in Shares. The Company may, in its discretion, permit or require the
Participant to satisfy all or any portion of a Participating Company’s tax
withholding obligations by deducting a number of whole, Vested Shares otherwise deliverable to
the Participant or by the Participant’s tender to the Company of a number of whole, Vested Shares
or vested shares acquired otherwise than pursuant to the Award having, in any such case, a fair
market value, as determined by the Company as of the date on which the tax withholding obligations
arise, not in excess of the amount of such tax withholding obligations determined by the applicable
minimum statutory withholding rates. Any adverse consequences to the Participant resulting from
the procedure permitted under this Section, including, without limitation, tax consequences, shall
be the sole responsibility of the Participant.

          7.2 Election Under Section 83(b) of the Code.

               (a) The Participant understands that Section 83 of the Code taxes as ordinary income the
difference between the amount paid for the Shares, if anything, and the Fair Market Value of the
Shares as of the date on which the Shares are “substantially vested,” within the meaning of Section
83 of the Code. In this context, “substantially vested” means that the right of the Company to
reacquire the Shares pursuant to the Company Reacquisition Right has lapsed. The Participant
understands that he or she may elect to have his or her taxable income determined at the time he or
she acquires the Shares rather than when and as the Company Reacquisition Right lapses by filing an
election under Section 83(b) of the Code with the Internal Revenue Service no later than thirty
(30) days after the date of acquisition of the Shares. The Participant understands that failure to
make a timely filing under Section 83(b) of the Code will result in his or her recognition of
ordinary income, as the Company Reacquisition Right lapses, on the difference between the purchase
price, if anything, and the Fair Market Value of the Shares at the time such restrictions lapse.
The Participant further understands, however, that if Shares with respect to which an election
under Section 83(b) of the Code has been made are forfeited to the Company pursuant to its Company
Reacquisition Right, such forfeiture will be treated as a sale on which there is realized a loss
equal to the excess (if any) of the amount paid (if any) by the Participant for the forfeited
Shares over the amount realized (if any) upon their forfeiture. If the Participant has paid
nothing for the forfeited Shares and has received no payment upon their forfeiture, the Participant
understands that he or she will be unable to recognize any loss on the forfeiture of the Shares
even though the Participant incurred a tax liability by making an election under Section 83(b) of
the Code.

               (b) The Participant understands that he or she should consult with his or her tax advisor
regarding the advisability of filing with the Internal Revenue Service an election under Section
83(b) of the Code, which must be filed no later than thirty (30) days after the date of the
acquisition of the Shares pursuant to this Agreement. Failure to file an election under Section
83(b) of the Code, if appropriate, may result in adverse tax consequences to the Participant. The
Participant acknowledges that he or she has been advised to consult with a tax advisor regarding
the tax consequences to the Participant of the acquisition of Shares hereunder. ANY ELECTION UNDER
SECTION 83(b) OF THE CODE THE PARTICIPANT WISHES TO MAKE MUST BE FILED NO LATER THAN 30 DAYS AFTER
THE DATE ON WHICH THE PARTICIPANT ACQUIRES THE SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE
PARTICIPANT ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE PARTICIPANT’S SOLE
RESPONSIBILITY, EVEN IF THE PARTICIPANT REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO FILE SUCH
ELECTION ON HIS OR HER BEHALF.

5

 

               (c) The Participant will notify the Company in writing if the Participant files an election
pursuant to Section 83(b) of the Code. The Company intends, in the event it does not receive from
the Participant evidence of such filing, to claim a tax deduction for any amount which would
otherwise be taxable to the Participant in the absence of such an election.

     8. Adjustments for Changes in Capital Structure.

          Subject to any required action by the stockholders of the Company, in the event of any change
in the Stock effected without receipt of consideration by the Company, whether through merger,
consolidation, reorganization, reincorporation, recapitalization, reclassification, stock dividend,
stock split, reverse stock split, split-up, split-off, spin-off, combination of shares, exchange of
shares, or similar change in the capital structure of the Company, or in the event of payment of a
dividend or distribution to the stockholders of the Company in a form other than Stock (excepting
normal cash dividends) that has a material effect on the Fair Market Value of Shares of Stock,
appropriate adjustments shall be made in the number and kind of shares subject to the Award, in
order to prevent dilution or enlargement of the Participant’s rights under the Award. For purposes
of the foregoing, conversion of any convertible securities of the Company shall not be treated as
“effected without receipt of consideration by the Company.” Any fractional share resulting from an
adjustment pursuant to this Section shall be rounded down to the nearest whole number. Such
adjustments shall be determined by the Committee, and its determination shall be final, binding and
conclusive.

     9. Rights as a Stockholder, Director, Employee or Consultant.

          The Participant shall have no rights as a stockholder with respect to any Shares subject to
the Award until the date of the issuance of the Shares (as evidenced by the appropriate entry on
the books of the Company or of a duly authorized transfer agent of the Company). No adjustment
shall be made for dividends, distributions or other rights for which the record date is prior to
the date the Shares are issued, except as provided in Section 8. Subject the provisions of this
Agreement, the Participant shall exercise all rights and privileges of a stockholder of the Company
with respect to Shares deposited in the Escrow pursuant to Section 6. If the Participant is an
Employee, the Participant understands and acknowledges that, except as otherwise provided in a
separate, written employment agreement between a Participating Company and the Participant, the
Participant’s employment is “at will” and is for no specified term. Nothing in this Agreement
shall confer upon the Participant any right to continue in the Service of a Participating Company
or interfere in any way with any right of the Participating Company Group to terminate the
Participant’s Service at any time.

     10. Legends.

          The Company may at any time place legends referencing the Company Reacquisition Right and any
applicable federal, state or foreign securities law restrictions on all certificates representing
the Shares. The Participant shall, at the request of the Company, promptly present to the Company
any and all certificates representing the Shares in the possession of the Participant in order to
carry out the provisions of this Section. Unless
otherwise specified by the Company, legends placed on such certificates may include, but shall
not be limited to, the following:

6

 

“THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS SET FORTH IN AN
AGREEMENT BETWEEN THIS CORPORATION AND THE REGISTERED HOLDER, OR HIS PREDECESSOR IN
INTEREST, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THIS CORPORATION.”

     11. Transfers in Violation of Agreement.

          No Shares may be sold, exchanged, transferred, assigned, pledged, hypothecated or otherwise
disposed of, including by operation of law, in any manner which violates any of the provisions of
this Agreement and, except pursuant to an Ownership Change Event, until the date on which such
Shares become Vested Shares, and any such attempted disposition shall be void. The Company shall
not be required (a) to transfer on its books any Shares which will have been transferred in
violation of any of the provisions set forth in this Agreement or (b) to treat as owner of such
Shares or to accord the right to vote as such owner or to pay dividends to any transferee to whom
such Shares will have been so transferred. In order to enforce its rights under this Section, the
Company shall be authorized to give a stop transfer instruction with respect to the Shares to the
Company’s transfer agent.

     12. Miscellaneous Provisions.

          12.1 Termination or Amendment. The Committee may terminate or amend the Plan or this
Agreement at any time; provided, however, that no such termination or amendment may adversely
affect the Participant’s rights under this Agreement without the consent of the Participant unless
such termination or amendment is necessary to comply with applicable law or government regulation.
No amendment or addition to this Agreement shall be effective unless in writing.

          12.2 Nontransferability of the Award. The right to acquire Shares pursuant to the Award shall
not be subject in any manner to anticipation, alienation, sale, exchange, transfer, assignment,
pledge, encumbrance, or garnishment by creditors of the Participant or the Participant’s
beneficiary, except transfer by will or by the laws of descent and distribution. All rights with
respect to the Award shall be exercisable during the Participant’s lifetime only by the Participant
or the Participant’s guardian or legal representative.

          12.3 Further Instruments. The parties hereto agree to execute such further instruments and to
take such further action as may reasonably be necessary to carry out the intent of this Agreement.

          12.4 Binding Effect. This Agreement shall inure to the benefit of the successors and assigns
of the Company and, subject to the restrictions on transfer set forth herein, be binding upon the
Participant and the Participant’s heirs, executors, administrators, successors and assigns.

7

 

          12.5 Delivery of Documents and Notices. Any document relating to participation in the Plan or
any notice required or permitted hereunder shall be given in writing and shall be deemed
effectively given (except to the extent that this Agreement provides for effectiveness only upon
actual receipt of such notice) upon personal delivery, electronic delivery at the e-mail address,
if any, provided for the Participant by a Participating Company, or upon deposit in the U.S. Post
Office or foreign postal service, by registered or certified mail, or with a nationally recognized
overnight courier service, with postage and fees prepaid, addressed to the other party at the
address shown below that party’s signature to the Grant Notice or at such other address as such
party may designate in writing from time to time to the other party.

               (a) Description of Electronic Delivery. The Plan documents, which may include but do not
necessarily include: the Plan, the Grant Notice, this Agreement, the Plan Prospectus, and any
reports of the Company provided generally to the Company’s stockholders, may be delivered to the
Participant electronically. In addition, the parties may deliver electronically any notices called
for in connection with the Escrow and the Participant may deliver electronically the Grant Notice
to the Company or to such third party involved in administering the Plan as the Company may
designate from time to time. Such means of electronic delivery may include but do not necessarily
include the delivery of a link to a Company intranet or the internet site of a third party involved
in administering the Plan, the delivery of the document via e-mail or such other means of
electronic delivery specified by the Company.

               (b) Consent to Electronic Delivery. The Participant acknowledges that the Participant has
read Section 12.5(a) of this Agreement and consents to the electronic delivery of the Plan
documents, the Grant Notice and notices in connection with the Escrow, as described in Section
12.5(a). The Participant acknowledges that he or she may receive from the Company a paper copy of
any documents delivered electronically at no cost to the Participant by contacting the Company by
telephone or in writing. The Participant further acknowledges that the Participant will be
provided with a paper copy of any documents if the attempted electronic delivery of such documents
fails. Similarly, the Participant understands that the Participant must provide the Company or any
designated third-party administrator with a paper copy of any documents if the attempted electronic
delivery of such documents fails. The Participant may revoke his or her consent to the electronic
delivery of documents described in Section 12.5(a) or may change the electronic mail address to
which such documents are to be delivered (if Participant has provided an electronic mail address)
at any time by notifying the Company of such revoked consent or revised e-mail address by
telephone, postal service or electronic mail. Finally, the Participant understands that he or she
is not required to consent to electronic delivery of documents described in Section 12.5(a).

          12.6 Integrated Agreement. The Grant Notice, this Agreement and the Plan together with any
employment, service or other agreement between the Participant and the Participating Company Group
referring to the Award shall constitute the entire understanding and agreement of the Participant
and the Participating Company Group with respect to the subject matter contained herein or therein
and supersedes any prior agreements, understandings, restrictions, representations, or warranties
among the Participant and the Participating Company Group with respect to such subject matter other
than those as set forth or provided for herein or
therein. To the extent contemplated herein or therein, the provisions of the Grant Notice and
the Agreement shall survive any settlement of the Award and shall remain in full force and effect.

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          12.7 Applicable Law. This Agreement shall be governed by the laws of the State of California
as such laws are applied to agreements between California residents entered into and to be
performed entirely within the State of California.

          12.8 Counterparts. The Grant Notice may be executed in counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same instrument.

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ASSIGNMENT SEPARATE FROM CERTIFICATE

FOR VALUE RECEIVED the undersigned does hereby sell, assign and transfer unto
   
(                    ) shares of the Capital Stock of HALOZYME THERAPEUTICS,
INC. standing in the undersigned’s name on the books of said corporation represented by Certificate
No.                      herewith and does hereby irrevocably constitute and appoint
                     Attorney to transfer the said stock on the books of said corporation with
full power of substitution in the premises.

Dated:                                         

	 	 	 	 	 
	 	 	 
	 	
 	 
	 	Signature 	 
	 
	 	
 	 
	 	Print Name 	 
	 	 	 
	 

Instructions: Please do not fill in any blanks other than the signature line. The purpose
of this assignment is to enable the Company to exercise its Company Reacquisition Right set forth
in the Restricted Stock Agreement without requiring additional signatures on the part of the
Participant.

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