Document:

EX-10.2

 EXHIBIT 10.2 

IMPEL NEUROPHARMA, INC. 

2008 EQUITY INCENTIVE PLAN 

Originally Adopted on September 3, 2008 

Amended Effective January 13, 2010 to increase plan pool from 500,000 to 2,216,165 shares 

Amended Effective September 6, 2011 to increase plan pool from 2,216,165 to 3,006,001 shares 

Amended effective February 3, 2014 to increase plan pool from 3,006,001 to 3,750,000 shares 

Amended effective December 31, 2014 to increase plan pool from 3,570,000 to 6,090,578 shares 

Amended effective August 28, 2015 to increase plan pool from 6,090,578 to 6,910,737 shares 

Amended effective November 16, 2016 to increase plan pool from 6,910,737 to 13,210,737 shares 

Amended effective November 16, 2016 to increase plan pool from 13,210,737 to 14,003,181 shares 

Amended effective February 13, 2018 to increase plan pool from 14,003,181 to 20,922,181 shares 

1.    PURPOSE. The purpose of this Plan is to provide incentives to attract, retain and motivate
eligible persons whose present and potential contributions are important to the success of the Company, its Parent and Subsidiaries by offering eligible persons an opportunity to participate in the Company’s future performance through awards of
Options and Restricted Stock. Capitalized terms not defined in the text are defined in Section 22 hereof. 

2.    SHARES SUBJECT TO THE PLAN. 

2.1    Number of Shares Available. Subject to Sections 2.2 and 17 hereof, the total number of Shares
reserved and available for grant and issuance pursuant to this plan will be Twenty Million Nine Hundred Twenty-Two Thousand One Hundred Eighty-One (20,922,181). 

2.2    Adjustment of Shares. In the event that the number of outstanding shares of the Company’s
Common Stock is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or similar change in the capital structure of the Company without consideration, then (i) the number of
Shares reserved for issuance under this Plan, (ii) the Exercise Prices of and number of Shares subject to outstanding Options and (iii) the Purchase Prices of and number of Shares subject to other outstanding Awards will be proportionately
adjusted, subject to any required action by the Board or the stockholders of the Company and compliance with applicable securities laws; provided, however, that fractions of a Share will not be issued but will either be paid in cash at the Fair
Market Value of such fraction of a Share or will be rounded down to the nearest whole Share, as determined by the Committee. 

3.    ELIGIBILITY. ISOs (as defined in Section 5 hereof) may be granted only to employees
(including officers and directors who are also employees) of the Company or of a Parent or Subsidiary of the Company. NQSOs (as defined in Section 5 hereof) and Restricted 

 
Stock Awards may be granted to employees, officers, directors and consultants of the Company or any Parent or Subsidiary of the Company; provided such consultants render bona fide services not in
connection with the offer and sale of securities in a capital-raising transaction. Awards may be granted under this Plan as compensation for services in connection with the offer and sale of securities in a capital-raising transaction provided that
an exemption for such offer and sale is available under applicable federal and state securities laws. A person may be granted more than one Award under this Plan. 

4.    ADMINISTRATION. 

4.1    Committee Authority. This Plan will be administered by the Committee or the Board if no
Committee is created by the Board. Subject to the general purposes, terms and conditions of this Plan, and to the direction of the Board, the Committee will have full power to implement and carry out this Plan. Without limitation, the Committee will
have the authority to: 
 (a)    construe and interpret this Plan, any Award Agreement and any other agreement or
document executed pursuant to this Plan; 
 (b)    prescribe, amend and rescind rules and regulations relating to this
Plan; 
 (c)    approve persons to receive Awards; 

(d)    determine the form and terms of Awards; 

(e)    determine the number of Shares or other consideration subject to Awards; 

(f)    determine whether Awards will be granted singly, in combination with, in tandem with, in replacement of, or as
alternatives to, other Awards under this Plan or awards under any other incentive or compensation plan of the Company or any Parent or Subsidiary of the Company; 

(g)    grant waivers of any conditions of this Plan or any Award; 

(h)    determine the terms of vesting, exercisability and payment of Awards; 

(i)    correct any defect, supply any omission, or reconcile any inconsistency in this Plan, any Award, any Award
Agreement, any Exercise Agreement or any Restricted Stock Purchase Agreement; 
 (j)    determine whether an Award has
been earned; 
 (k)    make all other determinations necessary or advisable for the administration of this Plan; and

 (l)    extend the vesting period beyond a Participant’s Termination Date. 

  
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 4.2    Committee Discretion. Unless in
contravention of any express terms of this Plan or Award, any determination made by the Committee with respect to any Award will be made in its sole discretion either (i) at the time of grant of the Award, or (ii) subject to
Section 5.9 hereof, at any later time. Any such determination will be final and binding on the Company and on all persons having an interest in any Award under this Plan. The Committee may delegate to one or more officers of the Company the
authority to grant an Award under this Plan, provided such officer or officers are members of the Board. 

5.    OPTIONS. The Committee may grant Options to eligible persons described in Section 3 hereof
and will determine whether such Options will be Incentive Stock Options within the meaning of the Code (“ISOs”) or Nonqualified Stock Options (“NQSOs”), the number of Shares subject to the Option, the
Exercise Price of the Option, the period during which the Option may be exercised, and all other terms and conditions of the Option, subject to the following: 

5.1    Form of Option Grant. Each Option granted under this Plan will be evidenced by an Award
Agreement which will expressly identify the Option as an ISO or an NQSO (“Stock Option Agreement”), and will be in such form and contain such provisions (which need not be the same for each Participant) as the Committee may
from time to time approve, and which will comply with and be subject to the terms and conditions of this Plan. 

5.2    Date of Grant. The date of grant of an Option will be the date on which the Committee makes
the determination to grant such Option, unless a later date is otherwise specified by the Committee. The Stock Option Agreement and a copy of this Plan will be delivered to the Participant within a reasonable time after the granting of the Option.

 5.3    Exercise Period. Options may be exercisable immediately but subject to repurchase
pursuant to Section 11 hereof or may be exercisable within the times or upon the events determined by the Committee as set forth in the Stock Option Agreement governing such Option; provided, however, that no Option will be exercisable after
the expiration of ten (10) years from the date the Option is granted; and provided further that no ISO granted to a person who directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of
stock of the Company or of any Parent or Subsidiary (“Ten Percent Shareholder”) will be exercisable after the expiration of five (5) years from the date the ISO is granted. The Committee also may provide for Options to
become exercisable at one time or from time to time, periodically or otherwise, in such number of Shares or percentage of Shares as the Committee determines. 

5.4    Exercise Price. The Exercise Price of an Option will be determined by the Committee when the
Option is granted and shall not be less than the Fair Market Value per Share unless expressly determined in writing by the Committee on the Option’s date of grant after giving consideration to Section 409A of the Code; provided that the
Exercise Price of an ISO granted to a Ten Percent Shareholder will not be less than one hundred ten percent (110%) of the Fair Market Value of the Shares on the date of grant. Payment for the Shares purchased must be made in accordance with
Section 7 hereof. 

  
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 5.5    Method of Exercise. Options may be exercised
only by delivery to the Company of a written stock option exercise agreement (the “Exercise Agreement”) in a form approved by the Committee (which need not be the same for each Participant). The Exercise Agreement will state
(i) the number of Shares being purchased, (ii) the restrictions imposed on the Shares purchased under such Exercise Agreement, if any, and (iii) such representations and agreements regarding Participant’s investment intent and
access to information and other matters, if any, as may be required or desirable by the Company to comply with applicable securities laws. Participant shall execute and deliver to the Company the Exercise Agreement together with payment in full of
the Exercise Price, and any applicable taxes, for the number of Shares being purchased. 

5.6    Termination. Subject to earlier termination pursuant to Sections 17 and 18 hereof and
notwithstanding the exercise periods set forth in the Stock Option Agreement, exercise of an Option will always be subject to the following: 

(a)    If the Participant is Terminated for any reason other than death, Disability or for Cause, then the Participant
may exercise such Participant’s Options only to the extent that such Options are exercisable as to Vested Shares upon the Termination Date or as otherwise determined by the Committee. Such Options must be exercised by the Participant, if at
all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within three (3) months after the Termination Date (or within such shorter time period or within such longer time
period, not exceeding five (5) years, after the Termination Date as may be determined by the Committee, with any exercise beyond three (3) months after the Termination Date deemed to be an NQSO) but in any event, no later than the
expiration date of the Options. 
 (b)    If the Participant is Terminated because of Participant’s death or
Disability (or the Participant dies within three (3) months after a Termination other than for Cause), then Participant’s Options may be exercised only to the extent that such Options are exercisable as to Vested Shares by Participant on
the Termination Date or as otherwise determined by the Committee. Such options must be exercised by Participant (or Participant’s legal representative or authorized assignee), if at all, as to all or some of the Vested Shares calculated as of
the Termination Date or such other date determined by the Committee, within twelve (12) months after the Termination Date (or within such shorter time period or within such longer time period, not exceeding five (5) years, after the
Termination Date as may be determined by the Committee, with any exercise beyond (i) three (3) months after the Termination Date when the Termination is for any reason other than the Participant’s death or “permanent and total
disability” (within the meaning of Section 22(e)(3) of the Code), or (ii) twelve (12) months after the Termination Date when the Termination is for Participant’s “permanent and total disability”, deemed to be an
NQSO) but in any event no later than the expiration date of the Options. 
 (c)    If the Participant is terminated for
Cause, the Participant may exercise such Participant’s Options, but not to an extent greater than such Options are exercisable as to Vested Shares upon the Termination Date and Participant’s Options shall expire on such Participant’s
Termination Date, or at such later time and on such conditions as are determined by the Committee. 

  
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 (d)    With respect to any Option for which the exemption from
qualification under Section 25102(o) of the California Corporations Code is claimed, the post-termination exercise periods applicable to such Option shall not be less than the minimum period required for the application of such exemption from
qualification. 
 5.7    Limitations on Exercise. The Committee may specify a reasonable minimum
number of Shares that may be purchased on any exercise of an Option, provided that such minimum number will not prevent Participant from exercising the Option for the full number of Shares for which it is then exercisable. 

5.8    Limitations on ISOs. The aggregate Fair Market Value (determined as of the date of grant) of
Shares with respect to which ISOs are exercisable for the first time by a Participant during any calendar year (under this Plan or under any other incentive stock option plan of the Company or any Parent or Subsidiary of the Company) will not exceed
One Hundred Thousand Dollars ($100,000). If the Fair Market Value of Shares on the date of grant with respect to which ISOs are exercisable for the first time by a Participant during any calendar year exceeds One Hundred Thousand Dollars ($100,000),
then the Options for the first One Hundred Thousand Dollars ($100,000) worth of Shares to become exercisable in such calendar year will be ISOs and the Options for the amount in excess of One Hundred Thousand Dollars ($100,000) that become
exercisable in that calendar year will be NQSOs. In the event that the Code or the regulations promulgated thereunder are amended after the Effective Date (as defined in Section 18 hereof) to provide for a different limit on the Fair Market
Value of Shares permitted to be subject to ISOs, then such different limit will be automatically incorporated herein and will apply to any Options granted after the effective date of such amendment. 

5.9    Modification, Extension or Renewal. The Committee may modify, extend or renew outstanding
Options and authorize the grant of new Options in substitution therefor, provided that any such action may not, without the written consent of a Participant, impair any of such Participant’s rights under any Option previously granted. Any
outstanding ISO that is modified, extended, renewed or otherwise altered will be treated in accordance with Section 424(h) of the Code. Subject to Section 5.10 hereof, the Committee may reduce the Exercise Price of outstanding Options
without the consent of Participants by a written notice to them; provided, however, that the Exercise Price may not be reduced below the minimum Exercise Price that would be permitted under Section 5.4 hereof for Options granted on the date the
action is taken to reduce the Exercise Price. 
 5.10    No Disqualification. Notwithstanding any
other provision in this Plan, no term of this Plan relating to ISOs will be interpreted, amended or altered, nor will any discretion or authority granted under this Plan be exercised, so as to disqualify this Plan under Section 422 of the Code
or, without the consent of the Participant, to disqualify any Participant’s ISO under Section 422 of the Code. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then
forfeited or repurchased by the Company as a separate issuance) under the Plan upon exercise of ISOs exceed Forty-One Million Eight Hundred Forty-Four Thousand Three Hundred
Sixty-Two (41,844,362) Shares (adjusted in proportion to any adjustments under Section 2.2 hereof) over the term of the Plan. 

  
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 6.    RESTRICTED STOCK. A Restricted Stock Award is
an offer by the Company to sell to an eligible person Shares that are subject to certain specified restrictions. The Committee will determine to whom an offer will be made, the number of Shares the person may purchase, the Purchase Price, the
restrictions to which the Shares will be subject, and all other terms and conditions of the Restricted Stock Award, subject to the following: 

6.1    Form of Restricted Stock Award. All purchases under a Restricted Stock Award made pursuant to
this Plan will be evidenced by an Award Agreement (“Restricted Stock Purchase Agreement”) that will be in such form (which need not be the same for each Participant) as the Committee will from time to time approve, and will
comply with and be subject to the terms and conditions of this Plan. The Restricted Stock Award will be accepted by the Participant’s execution and delivery of the Restricted Stock Purchase Agreement and full payment for the Shares to the
Company within thirty (30) days from the date the Restricted Stock Purchase Agreement is delivered to the person. If such person does not execute and deliver the Restricted Stock Purchase Agreement along with full payment for the Shares to the
Company within such thirty (30) days, then the offer will terminate, unless otherwise determined by the Committee. 

6.2    Purchase Price. The Purchase Price of Shares sold pursuant to a Restricted Stock Award will be
determined by the Committee on the date the Restricted Stock Award is granted or at the time the purchase is consummated. Payment of the Purchase Price must be made in accordance with Section 7 hereof. 

6.3    Restrictions. Restricted Stock Awards may be subject to the restrictions set forth in
Section 11 hereof. 
 7.    PAYMENT FOR SHARE PURCHASES. 

7.1    Payment. Payment for Shares purchased pursuant to this Plan may be made in cash (by check) or,
where expressly approved for the Participant by the Committee and where permitted by law: 
 (a)    by cancellation of
indebtedness of the Company owed to the Participant; 
 (b)    by surrender of shares of the Company that:
(i) either (A) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been
fully paid with respect to such shares) or (B) were obtained by Participant in the public market and (ii) are clear of all liens, claims, encumbrances or security interests; 

(c)    by tender of a full recourse promissory note having such terms as may be approved by the Committee and bearing
interest at a rate sufficient to avoid imputation of income under Sections 483 and 1274 of the Code; provided, however, that Participants who are not employees or directors of the Company will not be entitled to purchase Shares with a
promissory note unless the note is adequately secured by collateral other than the Shares. 

  
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 (d)    by waiver of compensation due or accrued to the Participant from
the Company for services rendered; 
 (e)    with respect only to purchases upon exercise of an Option, and provided
that a public market for the Company’s stock exists: 
 (i)    through a “same day sale” commitment from
the Participant and a Company-designated broker-dealer that is a member of the Financial Industry Regulatory Authority (a “Dealer”) whereby the Participant irrevocably elects to exercise the Option and to sell a portion of
the Shares so purchased sufficient to pay the total Exercise Price, and whereby the Dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or 

(ii)    through a “margin” commitment from the Participant and a Dealer whereby the Participant irrevocably
elects to exercise the Option and to pledge the Shares so purchased to the Dealer in a margin account as security for a loan from the Dealer in the amount of the total Exercise Price, and whereby the Dealer irrevocably commits upon receipt of such
Shares to forward the total Exercise Price directly to the Company; or 
 (f)    by any combination of the foregoing.

 7.2    Loan Guarantees. The Committee may, in its sole discretion, elect to assist the
Participant in paying for Shares purchased under this Plan by authorizing a guarantee by the Company of a third-party loan to the Participant. 

8.    WITHHOLDING TAXES. 

8.1    Withholding Generally. Whenever Shares are to be issued in satisfaction of Awards granted under
this Plan, the Company may require the Participant to remit to the Company an amount sufficient to satisfy federal, state and local withholding tax requirements prior to the delivery of any certificate or certificates for such Shares. Whenever,
under this Plan, payments in satisfaction of Awards are to be made in cash by the Company, such payment will be net of an amount sufficient to satisfy federal, state, and local withholding tax requirements. 

8.2    Stock Withholding. When, under applicable tax laws, a Participant incurs tax liability in
connection with the exercise or vesting of any Award that is subject to tax withholding and the Participant is obligated to pay the Company the amount required to be withheld, the Committee may in its sole discretion allow the Participant to satisfy
the minimum withholding tax obligation by electing to have the Company withhold from the Shares to be issued that minimum number of Shares having a Fair Market Value equal to the minimum amount required to be withheld, determined on the date that
the amount of tax to be withheld is to be determined; but in no event will the Company withhold Shares if such withholding would result in adverse accounting consequences to the Company. All elections by a Participant to have Shares withheld for
this purpose will be made in accordance with the requirements established by the Committee for such elections and be in writing in a form acceptable to the Committee. 

  
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 9.    PRIVILEGES OF STOCK OWNERSHIP. No Participant
will have any of the rights of a stockholder with respect to any Shares until the Shares are issued to the Participant. After Shares are issued to the Participant, the Participant will be a stockholder and have all the rights of a stockholder with
respect to such Shares, including the right to vote and receive all dividends or other distributions made or paid with respect to such Shares; provided, that if such Shares are Restricted Stock, then any new, additional or different securities the
Participant may become entitled to receive with respect to such Shares by virtue of a stock dividend, stock split or any other change in the corporate or capital structure of the Company will be subject to the same restrictions as the Restricted
Stock. The Participant will have no right to retain such stock dividends or stock distributions with respect to Unvested Shares that are repurchased pursuant to Section 11 hereof. 

10.    TRANSFERABILITY. Except as permitted by the Committee, Awards granted under this Plan, and any
interest therein, will not be transferable or assignable by Participant, other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to an inter vivos or testamentary trust in which the options are to be
passed to beneficiaries upon the death of the trustor (settlor), or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may not be made subject to execution,
attachment or similar process. During the lifetime of the Participant an Award will be exercisable only by the Participant or Participant’s legal representative and any elections with respect to an Award may be made only by the Participant or
Participant’s legal representative. 
 11.    RESTRICTIONS ON SHARES. 

11.1    Right of First Refusal. At the discretion of the Committee, the Company may reserve to itself
and/or its assignee(s) in the Award Agreement a right of first refusal to purchase all Shares that a Participant (or a subsequent transferee) may propose to transfer to a third party, provided that such right of first refusal terminates upon the
Company’s initial public offering of Common Stock pursuant to an effective registration statement filed under the Securities Act. 

11.2    Right of Repurchase. At the discretion of the Committee, the Company may reserve to itself
and/or its assignee(s) in the Award Agreement a right to repurchase Unvested Shares held by a Participant for cash and/or cancellation of purchase money indebtedness owed to the Company by the Participant following such Participant’s
Termination at any time. 
 12.    CERTIFICATES. All certificates for Shares or other securities
delivered under this Plan will be subject to such stock transfer orders, legends and other restrictions as the Committee may deem necessary or advisable, including restrictions under any applicable federal, state or foreign securities law, or any
rules, regulations and other requirements of the SEC or any stock exchange or automated quotation system upon which the Shares may be listed or quoted. 

13.    ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a Participant’s Shares set forth
in Section 11 hereof, the Committee may require the Participant to deposit all certificates representing Shares, together with stock powers or other instruments of transfer approved by the Committee, appropriately endorsed in blank, with the
Company or an 

  
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agent designated by the Company to hold in escrow until such restrictions have lapsed or terminated. The Committee may cause a legend or legends referencing such restrictions to be placed on the
certificates. Any Participant who is permitted to execute a promissory note as partial or full consideration for the purchase of Shares under this Plan will be required to pledge and deposit with the Company all or part of the Shares so purchased as
collateral to secure the payment of Participant’s obligation to the Company under the promissory note; provided, however, that the Committee may require or accept other or additional forms of collateral to secure the payment of such obligation
and, in any event, the Company will have full recourse against the Participant under the promissory note notwithstanding any pledge of the Participant’s Shares or other collateral. In connection with any pledge of the Shares, Participant will
be required to execute and deliver a written pledge agreement in such form as the Committee will from time to time approve. The Shares purchased with the promissory note may be released from the pledge on a pro rata basis as the promissory note is
paid. 
 14.    EXCHANGE AND BUYOUT OF AWARDS. The Committee may, at any time or from time to time,
authorize the Company, with the consent of the respective Participants, to issue new Awards in exchange for the surrender and cancellation of any or all outstanding Awards. The Committee may at any time buy from a Participant an Award previously
granted with payment in cash, shares of Common Stock of the Company (including Restricted Stock) or other consideration, based on such terms and conditions as the Committee and the Participant may agree. 

15.    SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. Although this Plan is intended to be a written
compensatory benefit plan within the meaning of Rule 701 promulgated under the Securities Act, grants may be made pursuant to this Plan that do not qualify for exemption under Rule 701. An Award will not be effective unless such Award is in
compliance with all applicable federal and state securities laws, rules and regulations of any governmental body, and the requirements of any stock exchange or automated quotation system upon which the Shares may then be listed or quoted, as they
are in effect on the date of grant of the Award and also on the date of exercise or other issuance. Notwithstanding any other provision in this Plan, the Company will have no obligation to issue or deliver certificates for Shares under this Plan
prior to (i) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable, and/or (ii) compliance with any exemption, completion of any registration or other qualification of such Shares under
any state or federal law or ruling of any governmental body that the Company determines to be necessary or advisable. The Company will be under no obligation to register the Shares with the SEC or to effect compliance with the exemption,
registration, qualification or listing requirements of any state securities laws, stock exchange or automated quotation system, and the Company will have no liability for any inability or failure to do so. 

16.    NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted under this Plan will confer
or be deemed to confer on any Participant any right to continue in the employ of, or to continue any other relationship with, the Company or any Parent or Subsidiary or limit in any way the right of the Company or any Parent or Subsidiary to
terminate Participant’s employment or other relationship at any time, with or without Cause. 

  
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 17.    CORPORATE TRANSACTIONS. 

17.1    Assumption or Replacement of Awards by Successor or Acquiring Company. In the event of
(i) a dissolution or liquidation of the Company, (ii) any reorganization, consolidation, merger or similar transaction or series of related transactions (each, a “combination transaction”) in which the Company is a
constituent corporation or is a party if, as a result of such combination transaction, the voting securities of the Company that are outstanding immediately prior to the consummation of such combination transaction (other than any such
securities that are held by an Acquiring Shareholder (defined below)) do not represent, or are not converted into, securities of the surviving corporation of such combination transaction (or such surviving corporation’s parent corporation if
the surviving corporation is owned by the parent corporation) that, immediately after the consummation of such combination transaction, together possess at least fifty percent (50%) of the total voting power of all securities of such
surviving corporation (or its parent corporation, if applicable) that are outstanding immediately after the consummation of such combination transaction, including securities of such surviving corporation (or its parent corporation, if applicable)
that are held by the Acquiring Shareholder; or (iii) a sale of all or substantially all of the assets of the Company, that is followed by the distribution of the proceeds to the Company’s stockholders, any or all outstanding Awards may be
assumed, converted or replaced by the successor or acquiring corporation (if any), which assumption, conversion or replacement will be binding on all Participants. In the alternative, the successor or acquiring corporation may substitute equivalent
Awards or provide substantially similar consideration to Participants as was provided to stockholders of the Company (after taking into account the existing provisions of the Awards). The successor or acquiring corporation may also substitute by
issuing, in place of outstanding Shares of the Company held by the Participant, substantially similar shares or other property subject to repurchase restrictions and other provisions no less favorable to the Participant than those which applied to
such outstanding Shares immediately prior to such transaction described in this Section 17.1. For purposes of this Section 17.1, an “Acquiring Shareholder “ means a shareholder or shareholders of the Company that
(i) merges or combines with the Company in such combination transaction or (ii) owns or controls a majority of another corporation that merges or combines with the Company in such combination transaction. In the event such successor
or acquiring corporation (if any) refuses to assume, convert, replace or substitute Awards, as provided above, pursuant to a transaction described in this Section 17.1, then notwithstanding any other provision in this Plan to the contrary,
such Awards will expire on such transaction at such time and on such conditions as the Board will determine. 

17.2    Other Treatment of Awards. Subject to any greater rights granted to Participants under the
foregoing provisions of this Section 17, in the event of the occurrence of any transaction described in Section 17.1 hereof, any outstanding Awards will be treated as provided in the applicable agreement or plan of reorganization, merger,
consolidation, dissolution, liquidation or sale of assets. 
 17.3    Assumption of Awards by the
Company. The Company, from time to time, also may substitute or assume outstanding awards granted by another company, whether in connection with an acquisition of such other company or otherwise, by either (i) granting an Award under
this Plan in substitution of such other company’s award or (ii) assuming such award as if it had been granted under this Plan if the terms of such assumed award could be 

  
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applied to an Award granted under this Plan. Such substitution or assumption will be permissible if the holder of the substituted or assumed award would have been eligible to be granted an Award
under this Plan if the other company had applied the rules of this Plan to such grant. In the event the Company assumes an award granted by another company, the terms and conditions of such award will remain unchanged (except that the exercise price
and the number and nature of shares issuable upon exercise of any such option will be adjusted appropriately pursuant to Section 424(a) of the Code). In the event the Company elects to grant a new Option rather than assuming an existing option,
such new Option may be granted with a similarly adjusted Exercise Price. 
 18.    ADOPTION AND STOCKOLDER
APPROVAL. This Plan will become effective on the date that it is adopted by the Board (the “Effective Date”). This Plan will be approved by the stockholders of the Company (excluding Shares issued pursuant to this
Plan), consistent with applicable laws, within twelve (12) months before or after the Effective Date. Upon the Effective Date, the Board may grant Awards pursuant to this Plan; provided, however, that: (i) no Option may be exercised prior
to initial stockholder approval of this Plan; and (ii) no Option granted pursuant to an increase in the number of Shares approved by the Board shall be exercised prior to the time such increase has been approved by the stockholders of the
Company. Provided further, that any Award (as well as the issuance of any Shares under such Award) shall automatically be rescinded if the exemption from qualification under Section 25102(o) of the California Corporations Code is being claimed
for such Award and the stockholder approval of this Plan that is required for such exemption is not timely obtained. 

19.    TERM OF PLAN/GOVERNING LAW. Unless earlier terminated as provided herein, this Plan will
terminate ten (10) years from the Effective Date or, if earlier, the date of stockholder approval. This Plan and all agreements hereunder shall be governed by and construed in accordance with the laws of the State of Washington. 

20.    AMENDMENT OR TERMINATION OF PLAN. Subject to Section 5.9 hereof, the Board may at any
time terminate or amend this Plan in any respect, including without limitation amendment of any form of Award Agreement or instrument to be executed pursuant to this Plan; provided, however, that the Board will not, without the approval of the
stockholders of the Company, amend this Plan in any manner that requires such stockholder approval pursuant to the Code or the regulations promulgated thereunder as such provisions apply to ISO plans. 

21.    NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the Board, the submission of
this Plan to the stockholders of the Company for approval, nor any provision of this Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem desirable, including,
without limitation, the granting of stock options and other equity awards otherwise than under this Plan, and such arrangements may be either generally applicable or applicable only in specific cases. 

22.    DEFINITIONS. As used in this Plan, the following terms will have the following meanings: 

“Award” means any award under this Plan, including any Option or Restricted Stock Award. 

  
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 “Award Agreement” means, with respect to each Award, the signed
written agreement between the Company and the Participant setting forth the terms and conditions of the Award, including the Stock Option Agreement and Restricted Stock Agreement. 

“Board” means the Board of Directors of the Company. 

“Cause” means Termination because of (i) any willful, material violation by the Participant of any law or
regulation applicable to the business of the Company or a Parent or Subsidiary of the Company, the Participant’s conviction for, or guilty plea to, a felony or a crime involving moral turpitude, or any willful perpetration by the Participant of
a common law fraud, (ii) the Participant’s commission of an act of personal dishonesty which involves personal profit in connection with the Company or any other entity having a business relationship with the Company, (iii) any
material breach by the Participant of any provision of any agreement or understanding between the Company or any Parent or Subsidiary of the Company and the Participant regarding the terms of the Participant’s service as an employee, officer,
director or consultant to the Company or a Parent or Subsidiary of the Company, including without limitation, the willful and continued failure or refusal of the Participant to perform the material duties required of such Participant as an employee,
officer, director or consultant of the Company or a Parent or Subsidiary of the Company, other than as a result of having a Disability, or a breach of any applicable invention assignment and confidentiality agreement or similar agreement between the
Company or a Parent or Subsidiary of the Company and the Participant, (iv) Participant’s disregard of the policies of the Company or any Parent or Subsidiary of the Company so as to cause loss, damage or injury to the property, reputation
or employees of the Company or a Parent or Subsidiary of the Company, or (v) any other misconduct by the Participant which is materially injurious to the financial condition or business reputation of, or is otherwise materially injurious to,
the Company or a Parent or Subsidiary of the Company. Notwithstanding the foregoing, for purposes of any Award granted a Participant with a written employment agreement (or consulting agreement) actively negotiated with the Company (or a Parent or
Subsidiary), if such agreement has “Cause” as a defined term, then such definition shall apply with respect to Awards granted such Participant. 

“Code” means the Internal Revenue Code of 1986, as amended. 

“Committee” means the committee created and appointed by the Board to administer this Plan, or if no committee is
created and appointed, the Board. 
 “Company” means Impel NeuroPharma, Inc., or any successor corporation. 

“Disability” means a disability, whether temporary or permanent, partial or total, as determined by the Committee.

 “Exercise Price” means the price per Share at which a holder of an Option may purchase Shares issuable upon
exercise of the Option. 

  
 12 

 “Fair Market Value” means, as of any date, the value of a share of
the Company’s Common Stock determined as follows: 
 (a)    if such Common Stock is then publicly traded on a
national securities exchange, its closing price on the date of determination on the principal national securities exchange on which the Common Stock is listed or admitted to trading as reported in The Wall Street Journal; 

(b)    if such Common Stock is publicly traded but is not listed or admitted to trading on a national securities
exchange, the average of the closing bid and asked prices on the date of determination as reported by The Wall Street Journal (or, if not so reported, as otherwise reported by any newspaper or other source as the Committee may determine); or

 (c)    if none of the foregoing is applicable, by the Committee in good faith. 

“Option” means an award of an option to purchase Shares pursuant to Section 5 hereof. 

“Parent” means any corporation (other than the Company) in an unbroken chain of corporations ending with the Company
if each of such corporations other than the Company owns stock representing fifty percent (50%) or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. 

“Participant” means a person who receives an Award under this Plan. 

“Plan” means this IMPEL NEUROPHARMA, INC. 2008 Equity Incentive Plan, as amended from time to time. 

“Purchase Price” means the price at which a Participant may purchase Restricted Stock. 

“Restricted Stock” means Shares purchased pursuant to a Restricted Stock Award. 

“Restricted Stock Award” means an award of Shares pursuant to Section 6 hereof. 

“SEC” means the Securities and Exchange Commission. 

“Securities Act” means the Securities Act of 1933, as amended. 

“Shares” means shares of the Company’s Common Stock reserved for issuance under this Plan, as adjusted pursuant
to Sections 2 and 17 hereof, and any successor security. 
 “Subsidiary” means any corporation (other than the
Company) in an unbroken chain of corporations beginning with the Company if each of the corporations other than the last corporation in the unbroken chain owns stock representing fifty percent (50%) or more of the total combined voting power of all
classes of stock in one of the other corporations in such chain. 
 “Termination” or
“Terminated” means, for purposes of this Plan with respect to a Participant, that the Participant has for any reason ceased to provide services as an employee, 

  
 13 

 
officer, director or consultant to the Company or a Parent or Subsidiary of the Company. A Participant will not be deemed to have ceased to provide services in the case of (i) sick leave,
(ii) military leave, or (iii) any other leave of absence approved by the Committee, provided that such leave is for a period of not more than ninety (90) days (a) unless reinstatement (or, in the case of an employee with an ISO,
reemployment) upon the expiration of such leave is guaranteed by contract or statute, or (b) unless provided otherwise pursuant to formal policy adopted from time to time by the Company’s Board and issued and promulgated in writing. In the
case of any Participant on (i) sick leave, (ii) military leave or (iii) an approved leave of absence, the Committee may make such provisions respecting suspension of vesting of the Award while on leave from the Company or a Parent or
Subsidiary of the Company as it may deem appropriate, except that in no event may an Option be exercised after the expiration of the term set forth in the Stock Option Agreement. The Committee will have sole discretion to determine whether a
Participant has ceased to provide services and the effective date on which the Participant ceased to provide services (the “Termination Date”). 

“Unvested Shares” means “Unvested Shares” as defined in the Award Agreement. 

“Vested Shares” means “Vested Shares” as defined in the Award Agreement. 

  
 14 

 No.             

IMPEL NEUROPHARMA, INC. 

2008 EQUITY INCENTIVE PLAN 

RESTRICTED STOCK PURCHASE AGREEMENT 

This Restricted Stock Purchase Agreement (the “Agreement”) is made and entered into as of
            ,         (the “Effective Date”) by and between Impel NeuroPharma, Inc., a
Delaware corporation (the “Company”), and the purchaser named below (the “Purchaser”). Capitalized terms not defined herein shall have the meaning ascribed to
them in the Company’s 2008 Equity Incentive Plan (the “Plan”). 
  

			
	Purchaser:	 	  

		
	Social Security Number:	 	  

		
	Address:	 	  

		
		 	  

		
	Total Number of Shares:	 	  

		
	Purchase Price Per Share:	 	  

		
	Total Purchase Price:	 	  

 1.    Purchase of Shares. 

1.1    Purchase of Shares. On the Effective Date and subject to the terms and
conditions of this Agreement and the Plan, Purchaser hereby purchases from the Company, and the Company hereby sells to Purchaser, the Total Number of Shares set forth above (the “Shares”) of the Company’s Common Stock
at the Purchase Price Per Share as set forth above (the “Purchase Price Per Share”) for a Total Purchase Price as set forth
above (the “Purchase Price”). As used in this Agreement, the term “Shares” includes the Shares purchased under this Agreement and all securities received (a) in
replacement of the Shares, (b) as a result of stock dividends or stock splits with respect to the Shares, and (c) in replacement of the Shares in a merger, recapitalization, reorganization or similar corporate transaction. 

1.2    Title to Shares. The exact spelling of Purchaser’s name under
which Purchaser will take title to the Shares is:
                                        

 1.3    Payment. Purchaser hereby delivers payment of the Purchase Price as follows (check and complete as
appropriate): 
  

	☐	 in cash (by check) in the amount of $        , receipt of which is
acknowledged by the Company; or 

  

	☐	 by delivery of
                    fully-paid, nonassessable and vested shares of the Common Stock of the Company already owned by Purchaser (which have been paid
for within the meaning of SEC Rule 144) and which are free and clear of all liens, claims, encumbrances or security interests, valued at the current Fair Market Value of $         per share.

  
 1 

 2.    Delivery. 

2.1    Deliveries by Purchaser. Purchaser hereby delivers to the Company
(a) a duly executed copy of this Agreement, (b) two (2) copies of a blank Stock Power and Assignment Separate from Stock Certificate in the form of Exhibit 1 attached hereto (the
“Stock Powers”), both executed by Purchaser (and Purchaser’s spouse, if any), (c) if Purchaser is married, a Consent of Spouse in the form of Exhibit 2 attached
hereto (the “Spouse Consent”) executed by Purchaser’s spouse, and (d) payment of the Purchase Price by delivery of a check, a copy of which is attached hereto as
Exhibit 4. 

2.2    Deliveries by the Company. Upon its receipt of the
Purchase Price and all the documents to be executed and delivered by Purchaser to the Company under Section 2.1, the Company will issue a duly executed stock certificate evidencing the Shares in the name of Purchaser, to be placed in escrow as
provided in Section 11 until expiration or termination of the Company’s Repurchase Option and Right of First Refusal described in Sections 8, 9 and 10. 

3.    Representations and 
Warranties of Purchaser. Purchaser hereby represents and warrants to the Company as follows. 

3.1    Agrees to Terms of 
the Plan and this Agreement. Purchaser has received a copy of the Plan and this Agreement, has read and understands the terms of the Plan and this Agreement, and agrees to be bound by their
terms and conditions. Purchaser acknowledges that there may be adverse tax consequences upon purchase and disposition of the Shares, and that Purchaser should consult a tax adviser prior to such purchase or disposition. 

3.2    Purchase for Own Account 
for Investment. Purchaser is purchasing the Shares for Purchaser’s own account for investment purposes only and not with a view to, or for sale in connection with, a distribution of the Shares within the meaning of the
Securities Act. Purchaser has no present intention of selling or otherwise disposing of all or any portion of the Shares and no one other than Purchaser has any beneficial ownership of any of the Shares. 

3.3    Access to Information. Purchaser has had access to all information
regarding the Company and its present and prospective business, assets, liabilities and financial condition that Purchaser reasonably considers important in making the decision to purchase the Shares, and Purchaser has had ample opportunity to ask
questions of the Company’s representatives concerning such matters and this investment. 

3.4    Understanding of Risks. Purchaser is fully aware of: (a) the
highly speculative nature of the investment in the Shares; (b) the financial hazards involved; (c) the lack of liquidity of the Shares and the restrictions on transferability of the Shares (e.g., that Purchaser may not be able to
sell or dispose of the Shares or use them as collateral for loans); (d) the qualifications and backgrounds of the management of the Company; and (e) the tax consequences of investment in the Shares. Purchaser is capable of evaluating the merits
and risks of this investment, has the ability to protect Purchaser’s own interests in this transaction and is financially capable of bearing a total loss of this investment. 

3.5    No General Solicitation. At no time was Purchaser presented with or
solicited by any publicly issued or circulated newspaper, mail, radio, television or other form of general advertising or solicitation in connection with the offer, sale and purchase of the Shares. 

4.    Compliance with 
Securities Laws. Purchaser understands and acknowledges that the Shares have not been registered with the SEC under the Securities Act and that, notwithstanding any other provision of this Agreement to
the contrary, the exercise of any rights to purchase any Shares is expressly conditioned upon compliance with the Securities Act and all applicable state securities laws. Purchaser agrees to cooperate with the Company to ensure compliance with such
laws. The Shares are being issued under the Securities Act pursuant to the applicable exemption provided by the Securities Act. 

  
 2 

 5.    Restricted Securities. 

5.1    No Transfers Unless Registered 
or Exempt. Purchaser understands that Purchaser may not transfer any Shares unless such Shares are registered under the Securities Act and qualified under applicable state securities laws or unless, in the opinion of counsel to
the Company, exemptions from such registration and qualification requirements are available. Purchaser understands that only the Company may file a registration statement with the SEC and that the Company is under no obligation to do so with respect
to the Shares. Purchaser has also been advised that exemptions from registration and qualification may not be available or may not permit Purchaser to transfer all or any of the Shares in the amounts or at the times proposed by Purchaser. 

5.2    SEC Rule 144. In addition, Purchaser has been advised that SEC Rule
144 promulgated under the Securities Act, which permits certain limited sales of unregistered securities, is not presently available with respect to the Shares and, in any event, requires that the Shares be held for a minimum of six (6) months,
and in certain cases one (1) year, after they have been purchased and paid for (within the meaning of Rule 144), before they may be resold under Rule 144. Purchaser understands that Rule 144 may
indefinitely restrict transfer of the Shares so long as Purchaser remains an “affiliate” of the Company or if “current public information” about the Company (as defined in Rule 144) is not publicly available. 

6.    Restrictions on Transfers. 

6.1    Disposition of Shares. Purchaser hereby agrees that Purchaser will make
no disposition of the Shares (other than as permitted by this Agreement) unless and until: 

(a)    Purchaser has notified the Company of the proposed disposition and provided a written summary of the
terms and conditions of the proposed disposition; 
 (b)    Purchaser has complied with all requirements
of this Agreement applicable to the disposition of the Shares; 
 (c)    Purchaser has provided the
Company with written assurances, in form and substance satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act, or (ii) all appropriate actions
necessary for compliance with the registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) has been taken; and 

(d)    Purchaser has provided the Company with written assurances, in form and substance satisfactory to
the Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the Regulations referred to in Section 4.2 hereof. 

6.2    Restriction on Transfer. Purchaser shall not transfer, assign, grant a
lien or security interest in, pledge, hypothecate, encumber or otherwise dispose of any of the Shares which are subject to the Company’s Repurchase Option or the Company’s Right of First Refusal described below, except as permitted by this
Agreement. 
 6.3    Transferee Obligations. Each person (other than the Company) to whom the
Shares are transferred by means of one of the permitted transfers specified in this Agreement must, as a condition precedent to the validity of such transfer, acknowledge in writing to the Company that such person is bound by the provisions of this
Agreement and that the transferred Shares are subject to: (a) both the Company’s Repurchase Option and the Company’s Right of First Refusal granted hereunder and (b) the market stand-off
provisions of Section 7 hereof, to the same extent such Shares would be so subject if retained by the Purchaser. 

7.    Market Standoff Agreement. Purchaser
agrees in connection with any registration of the Company’s securities that, upon the request of the Company or the underwriters managing any public offering of the Company’s securities, Purchaser will not sell or otherwise dispose of any
Shares without the prior written consent of the 

  
 3 

 
Company or such underwriters, as the case may be, for such period of time (not to exceed one hundred eighty (180) days) after the effective date of such registration requested by such
underwriters and subject to all restrictions as the Company or the underwriters may specify. Purchaser further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing. 

8.    Company’s Repurchase Option for Unvested Shares. The Company, or its assignee, shall have the
option to repurchase all or a portion of the Purchaser’s Unvested Shares (as defined in Section 8.2 below) on the terms and conditions set forth in this Section (the “Repurchase Option”) if Purchaser is Terminated
(as defined in the Plan) for any reason, or no reason, including without limitation Purchaser’s death, Disability (as defined in the Plan), voluntary resignation or termination by the Company with or without Cause (as defined in the Plan). 

8.1    Termination and Termination Date. In case of any dispute as to whether Purchaser is Terminated, the
Committee shall have sole discretion to determine whether Purchaser has been Terminated and the effective date of such Termination (the “Termination Date”). 

8.2    Unvested and Vested Shares. Shares that are vested pursuant to the schedule set forth in this
Section 8.2 are “Vested Shares.” Shares that are not vested pursuant to the schedule set forth in this Section 8.2 are “Unvested Shares.” Unvested Shares may not be sold or otherwise
transferred by Purchaser without the Company’s prior written consent. On the Effective Date all of the Shares will be Unvested Shares. If Purchaser has continuously provided services to the Company, any Subsidiary or Parent at all times
from the Effective Date until             , 20     (the “First Vesting Date”), then on the First Vesting Date
                     of the Shares will become Vested Shares; and thereafter, for so long (and only for so long) as Purchaser continuously provides
services to the Company, any Subsidiary or Parent at all times after the First Vesting Date, an additional                  of the Shares will become Vested Shares upon
each of the first                      anniversaries of the First Vesting Date. If the application of the vesting percentage causes a fractional
share, such share shall be rounded down to the nearest whole share for each month except for the last month in such vesting period, at the end of which last month the balance of Unvested Shares shall become fully Vested Shares. No Shares will become
Vested Shares after the Termination Date. The number of Shares that are Vested Shares or Unvested Shares will be proportionally adjusted for any stock split or similar change in the capital structure of the Company as set forth in Section 2.2
of the Plan. 
 8.3    Exercise of Repurchase Option. At any time within ninety (90) days after the
Termination Date, the Company, or its assignee(s), may elect to repurchase any or all of the Purchaser’s Unvested Shares by giving Purchaser written notice of exercise of the Repurchase Option. 

8.4    Calculation of Repurchase Price. The Company or its assignee(s) shall have the option to repurchase from
Purchaser (or from Purchaser’s personal representative as the case may be) the Purchaser’s Unvested Shares at the Purchaser’s original Purchase Price Per Share (as adjusted to reflect any stock split or similar change in the capital
structure of the Company as set forth in Section 2.2 of the Plan) (the “Repurchase Price”). 

8.5    Payment of Repurchase Price. The Repurchase Price shall be payable, at the option of the Company or its
assignee(s), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by Purchaser to the Company, or such assignee, or by any combination thereof. The Repurchase Price shall be paid without interest within
sixty (60) days after exercise of the Repurchase Option. 
 8.6    Right of Termination Unaffected. Nothing
in this Agreement shall be construed to limit or otherwise affect in any manner whatsoever the right or power of the Company (or any Parent or Subsidiary) to terminate Purchaser’s employment or other relationship with the Company (or any Parent
or Subsidiary) at any time for any reason or no reason, with or without Cause. 
 9.    Company’s Right of First
Refusal. Unvested Shares may not be sold or otherwise transferred by Purchaser without the Company’s prior written consent. Before any Vested Shares held by Purchaser or any transferee of such Vested Shares (either sometimes
referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s) will have a right of first refusal to
purchase the Vested Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First Refusal”). 

  
 4 

 9.1    Notice of Proposed Transfer. The Holder of the Offered
Shares will deliver to the Company a written notice (the “Notice”) stating: (a) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (b) the name and address of each proposed
purchaser or other transferee (the “Proposed Transferee”); (c) the number of Offered Shares to be transferred to each Proposed Transferee; (d) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Offered Shares (the “Offered Price”); and (e) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its
assignee(s) pursuant to the Company’s Right of First Refusal at the Offered Price as provided for in this Agreement. 

9.2    Exercise of Right of First Refusal. At any time within thirty (30) days after the date of the Notice,
the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or, with the consent of the Holder, less than all) the Offered Shares proposed to be transferred to any one or more of the Proposed Transferees
named in the Notice, at the purchase price determined as specified below. 
 9.3    Purchase Price. The purchase
price for the Offered Shares purchased under this Section will be the Offered Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift), the purchase price will be the fair
market value of the Offered Shares as determined in good faith by the Company’s Board of Directors. If the Offered Price includes consideration other than cash, then the value of the non-cash
consideration, as determined in good faith by the Company’s Board of Directors, will conclusively be deemed to be the cash equivalent value of such non-cash consideration. 

9.4    Payment. Payment of the purchase price for the Offered Shares will be payable, at the option of the Company
and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by the Holder to the Company (or to such assignee, in the case of a purchase of Offered Shares by such
assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its assignee(s), in the manner and at the
time(s) set forth in the Notice. 
 9.5    Holder’s Right to Transfer. If all of the Offered Shares proposed
in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise transfer such Offered Shares to each Proposed Transferee at the
Offered Price or at a higher price, provided that (a) such sale or other transfer is consummated within one hundred twenty (120) days after the date of the Notice, (b) any such sale or other transfer is effected in compliance
with all applicable securities laws, and (c) each Proposed Transferee agrees in writing that the provisions of this Section will continue to apply to the Offered Shares in the hands of such Proposed Transferee. If the Offered Shares described
in the Notice are not transferred to each Proposed Transferee within such one hundred twenty (120) day period, then a new Notice must be given to the Company, pursuant to which the Company will again be offered the Right of First Refusal before
any Shares held by the Holder may be sold or otherwise transferred. 
 9.6    Exempt Transfers. Notwithstanding
anything to the contrary in this Section, the following transfers of Vested Shares will be exempt from the Right of First Refusal: (a) the transfer of any or all of the Vested Shares during Purchaser’s lifetime by gift or on
Purchaser’s death by will or intestacy to Purchaser’s “Immediate Family” (as defined below) or to a trust for the benefit of Purchaser or Purchaser’s Immediate Family, provided that each transferee or other recipient agrees
in a writing satisfactory to the Company that the provisions of this Section will continue to apply to the transferred Vested Shares in the hands of such transferee or other recipient; (b) any transfer or conversion of Vested Shares made
pursuant to a statutory merger or statutory consolidation of the Company with or into another corporation or corporations (except that the Right of First Refusal will continue to apply thereafter to such Vested Shares, in which case the surviving
corporation of such merger or consolidation shall succeed to the rights of the Company under this Section unless (i) the common stock of the surviving corporation or any direct or indirect parent corporation thereof is registered under the
Securities Exchange Act of 1934, as amended; or (ii) the agreement of merger or consolidation expressly otherwise provides); or (c) any transfer of Vested Shares pursuant to the winding up and dissolution of the Company. As used herein,
the term “Immediate Family” will mean Purchaser’s spouse, the lineal descendant or antecedent, brother or sister of Purchaser or Purchaser’s spouse, or the spouse of any such person,
whether or not adopted or Spousal Equivalent, as defined herein. As used herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not the Purchaser
and the Spousal Equivalent are the same sex, 

  
 5 

 
they are the sole spousal equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else,
(iv) both are at least 18 years of age and mentally competent to consent to contract, (v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside,
(vi) they are jointly responsible for each other’s common welfare and financial obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely. 

9.7    Termination of Right of First Refusal. The Right of First Refusal will terminate as to all Shares on the
effective date of the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the 1933 Act (other than a registration statement relating solely to the
issuance of Common Stock pursuant to a business combination or an employee incentive or benefit plan). 

10.    Rights as a Stockholder. 

10.1    Encumbrances on Vested Shares. Purchaser may grant a lien or security interest in, or pledge, hypothecate or
encumber Vested Shares only if each party to whom such lien or security interest is granted, or to whom such pledge, hypothecation or other encumbrance is made, agrees in a writing satisfactory to the Company that: (a) such lien, security
interest, pledge, hypothecation or encumbrance will not apply to such Vested Shares after they are acquired by the Company and/or its assignees under this Section; and (b) the provisions of this Section will continue to apply to such Vested
Shares in the hands of such party and any transferee of such party. Purchaser may not grant a lien or security interest in, or pledge, hypothecate or encumber, any Unvested Shares. 

10.2    Other Rights. Subject to the terms and conditions of this Agreement, Purchaser will have all of the rights
of a stockholder of the Company with respect to the Shares from and after the date that Purchaser delivers payment of the Purchase Price until such time as Purchaser disposes of the Shares or the Company and/or its assignee(s) exercise(s) the
Repurchase Option or Right of First Refusal. Upon an exercise of the Repurchase Option or the Right of First Refusal, Purchaser will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to
receive payment for the Shares so purchased in accordance with the provisions of this Agreement, and Purchaser will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation. 

11.    Escrow. As security for Purchaser’s faithful performance of this Agreement, Purchaser agrees,
immediately upon receipt of the stock certificate(s) evidencing the Shares, to deliver such certificate(s), together with the Stock Powers executed by Purchaser and by Purchaser’s spouse, if any (with the date, transferee, certificate number
and number of Shares left blank), to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to hold such certificate(s) and Stock Powers
in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Escrow Holder will act solely for the Company as its agent and not as a fiduciary.
Purchaser and the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the
duties of Escrow Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to
the transactions contemplated by this Agreement. The Shares will be released from escrow upon termination of the Repurchase Option and the Right of First Refusal. 

12.    Restrictive Legends and Stop-Transfer Orders.

 12.1    Legends. Purchaser understands and agrees that the Company will place the legends set forth below
or similar legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by state or federal securities laws, the Company’s Certificate of Incorporation or Bylaws, any other agreement between
Purchaser and the Company or any agreement between Purchaser and any third party: 
 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF 

  
 6 

 
CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE
SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN
OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS. 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON PUBLIC RESALE, TRANSFER, INCLUDING THE RIGHT OF REPURCHASE
AND RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A RESTRICTED STOCK PURCHASE AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE
ISSUER. SUCH PUBLIC SALE AND TRANSFER RESTRICTIONS, INCLUDING THE RIGHT OF REPURCHASE AND RIGHT OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A 180 DAY MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN AGREEMENT BETWEEN
THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, COPIES OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE EFFECTIVE DATE OF ANY PUBLIC
OFFERING OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES. 

12.2    Stop-Transfer Instructions. Purchaser agrees that, to ensure compliance with the
restrictions imposed by this Agreement, the Company may issue appropriate “stop-transfer” instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make appropriate notations to the same effect in
its own records. The Company will not be required (a) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Agreement or (b) to treat as owner of such Shares, or to
accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares have been so transferred. 

13.    Tax Consequences. PURCHASER UNDERSTANDS THAT PURCHASER MAY SUFFER
ADVERSE TAX CONSEQUENCES AS A RESULT OF PURCHASER’S PURCHASE OR DISPOSITION OF THE SHARES. PURCHASER REPRESENTS (a) THAT PURCHASER HAS CONSULTED WITH ANY TAX ADVISER THAT PURCHASER DEEMS ADVISABLE IN CONNECTION WITH THE
PURCHASE OR DISPOSITION OF THE SHARES AND (b) THAT PURCHASER IS NOT RELYING ON THE COMPANY FOR ANY TAX ADVICE. Purchaser hereby acknowledges that Purchaser has been informed that, unless an election is filed by the Purchaser
with the Internal Revenue Service (and, if necessary, the proper state taxing authorities) within 30 days of the purchase of the Shares to be effective, electing pursuant to Section 83(b) of the Internal Revenue Code (and similar state
tax provisions, if applicable) to be taxed currently on any difference between the Purchase Price of the Shares and their Fair Market Value on the date of purchase, there will be a recognition of taxable income to the Purchaser, measured by the
excess, if any, of the Fair Market Value of the Vested Shares, at the time they cease to be Unvested Shares, over the Purchase Price for such Shares. Purchaser represents that Purchaser has consulted any tax advisers Purchaser deems advisable in
connection with Purchaser’s purchase of the Shares and the filing of the election under Section 83(b) and similar tax provisions. A form of Election under Section 83(b) is attached hereto as Exhibit 3
for reference. PURCHASER HEREBY ASSUMES ALL RESPONSIBILITY FOR FILING SUCH ELECTION AND PAYING ANY TAXES RESULTING FROM SUCH ELECTION OR FROM FAILURE TO FILE THE ELECTION AND PAYING TAXES RESULTING FROM THE LAPSE OF THE REPURCHASE
RESTRICTIONS ON THE UNVESTED SHARES. 

  
 7 

 14.    General Provisions. 

14.1    Compliance with Laws and 
Regulations. The issuance and transfer of the Shares will be subject to and conditioned upon compliance by the Company and Purchaser with all applicable state and federal laws and regulations and with all applicable requirements of any stock
exchange or automated quotation system on which the Company’s Common Stock may be listed or quoted at the time of such issuance or transfer. 

14.2    Successors and Assigns. The Company may assign any of its rights
under this Agreement, including its rights to repurchase Shares under the Repurchase Option and the Right of First Refusal. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to
the restrictions on transfer herein set forth, this Agreement will be binding upon Purchaser and Purchaser’s heirs, executors, administrators, legal representatives, successors and assigns. 

14.3    Governing Law; Severability. This Agreement shall be governed by and
construed in accordance with the internal laws of the State of Washington as such laws are applied to agreements between Washington residents entered into and to be performed entirely within Washington, excluding that body of laws pertaining
to conflict of laws. If any provision of this Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and
enforceable. 
 14.4    Notices. Any notice required to be given or delivered to the Company shall be in writing
and addressed to the Corporate Secretary of the Company at its principal corporate offices. Any notice required to be given or delivered to Purchaser shall be in writing and addressed to Purchaser at the address indicated above, Purchaser’s
facsimile number below or to such other address or facsimile number as Purchaser may designate in writing from time to time to the Company. All notices shall be deemed effectively given (a) upon personal delivery, (b) three (3) days after
deposit in the United States mail by certified or registered mail (return receipt requested) postage prepaid, (b) one (1) business day after its deposit with any return receipt express courier (fees prepaid), or (c) one (1) business day
after transmission by telecopier. 
 14.5    Further Instruments. The parties agree to execute
such further instruments and to take such further action as may be reasonably necessary to carry out the purposes and intent of this Agreement. 

14.6    Headings. The captions and headings of this Agreement are included for ease of reference only and will be
disregarded in interpreting or construing this Agreement. All references herein to Sections will refer to Sections of this Agreement. 

14.7    Entire Agreement. The Plan and this Agreement, together with all its Exhibits and
documents referred to herein, constitute the entire agreement and understanding of the parties with respect to the subject matter of this Agreement, and supersede all prior understandings and agreements, whether oral or written, between the parties
hereto with respect to the specific subject matter hereof. 
 [Remainder of Page Intentionally Blank, Signature Page Follows] 

  
 8 

 IN WITNESS WHEREOF, the Company has caused this Restricted Stock Purchase Agreement to be
executed in triplicate by its duly authorized representative and Purchaser has executed this Agreement in triplicate as of the Effective Date. 
  

									
	IMPEL NEUROPHARMA, INC.	 		 	PURCHASER
				
	By:	 	
                     
                                         
                                       
	 		 	  

		 		 	(Signature)

									
			
	  
	 		 	  

	(Please print name)	 		 	(Please print name)
			
	  
	 		 	
	(Please print title)	 		 		 	
					
	Fax No.:	 	
                     
                                        
	 		 	Fax No.:	 	
                     
                                         
                           

									
					
	Phone No.	 	
                     
                                         
                   
	 		 	Phone No.:	 	
                     
                                         
                           

 LIST OF ATTACHMENTS 
  

			
	Exhibit 1:	  	Stock Power and Assignment Separate from Stock Certificate
	Exhibit 2:	  	Spouse Consent
	Exhibit 3:	  	Election Under Section 83(b) of the Internal Revenue Code
	Exhibit 4:	  	Copy of Purchaser’s Check

  
 9 

 EXHIBIT 1 

STOCK POWER AND ASSIGNMENT 

SEPARATE FROM STOCK CERTIFICATE 

 Stock Power and Assignment 

Separate from Stock Certificate 

FOR VALUE RECEIVED and pursuant to that certain Restricted Stock Purchase Agreement No.
             [COMPLETE AT THE TIME OF EXERCISE] dated as of             ,
        , [COMPLETE AT THE TIME OF EXERCISE] (the “Agreement”), the undersigned hereby sells, assigns and transfers unto
                    ,                  shares of the Common Stock of
Impel NeuroPharma, Inc., a Delaware corporation (the “Company”), standing in the undersigned’s name on the books of the Company represented by Certificate No(s).
                     [COMPLETE AT THE TIME OF EXERCISE] delivered herewith, and does hereby irrevocably constitute and
appoint the Secretary of the Company as the undersigned’s attorney-in-fact, with full power of substitution, to transfer said stock on the books of the Company.
THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND ANY EXHIBITS THERETO. 
 Dated:
                    ,          

 

	
	PURCHASER
	
	  

	(Signature)
	
	  

	(Please Print Name)
	
	  

	(Spouse’s Signature, if any)
	
	  

	(Please Print Spouse’s Name)

 Instructions to Purchaser: Please do not fill in any blanks other than the signature line. The
purpose of this Stock Power and Assignment is to enable the Company and/or its assignee(s) to acquire the shares upon exercise of its “Repurchase Option” and/or “Right of First Refusal” set forth in the Agreement without
requiring additional signatures on the part of the Purchaser or Purchaser’s Spouse, if any. 

 EXHIBIT 2 

SPOUSE CONSENT 

 Spouse Consent 

The undersigned spouse of
                     (the “Purchaser”) has read, understands, and hereby approves the Restricted Stock Purchase Agreement
between Purchaser and the Company (the “Agreement”). In consideration of the Company’s granting my spouse the right to purchase the Shares as set forth in the Agreement, the undersigned hereby agrees to be irrevocably
bound by the Agreement and further agrees that any community property interest shall similarly be bound by the Agreement. The undersigned hereby appoints Purchaser as my
attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. 
  

									
	Date:	 	
                     
                                         
                   
	 		 	  

		 	            	 	Print Name of Purchaser’s Spouse
			
	  
	 		 	  

	(Please print name)	 		 	Signature of Purchaser’s Spouse
				
	  
	 		 	Address:	 	
                     
                                         
                           

	(Please print title)	 		 	  

		 		 	  

		 		 	  

		 		 		 	  

☐   Check this box if you do not have a spouse.

 EXHIBIT 3 

ELECTION UNDER SECTION 83(b) OF THE INTERNAL REVENUE CODE 

 Election Under Section 83(b) of the Internal Revenue Code 

The undersigned Taxpayer hereby elects, pursuant to Section 83(b) of the Internal Revenue Code, as amended, to include in gross income
for the Taxpayer’s current taxable year the excess, if any, of the fair market value of the property described below at the time of transfer over the amount paid for such property, as compensation for services. 

 

					
	1.	  	 TAXPAYER’S NAME:
	 	  

					
			
		  	 TAXPAYER’S ADDRESS:
	 	  

			
		  		 	  

			
		  	 SOCIAL SECURITY NUMBER:
	 	
                     
                                         
                                         
                                      

		
	2.	  	 The property with respect to which the election is made is described as follows:
                 shares of Common Stock of Impel NeuroPharma, a Delaware corporation (the “Company”), which is Taxpayer’s employer or the
corporation for whom the Taxpayer performs services.

		
	3.	  	 The date on which the shares were purchased was
            , 20     and this election is made for calendar year 20    .

		
	4.	  	 The shares are subject to the following restrictions: The Company may repurchase all or a portion of the
shares at the Taxpayer’s original purchase price under certain conditions at the time of Taxpayer’s termination of employment or services.

		
	5.	  	 The fair market value of the shares (without regard to restrictions other than restrictions which by their
terms will never lapse) was $         per share at the time of purchase.

		
	6.	  	 The amount paid for such shares was $         per
share.

		
	7.	  	 The Taxpayer has submitted a copy of this statement to the Company.

 THIS ELECTION MUST BE FILED WITH THE INTERNAL REVENUE SERVICE (“IRS”), AT THE OFFICE WHERE THE TAXPAYER
FILES ANNUAL INCOME TAX RETURNS, WITHIN 30 DAYS AFTER THE DATE OF TRANSFER OF THE PROPERTY, AND
MUST ALSO BE FILED WITH THE TAXPAYER’S INCOME TAX RETURNS FOR THE CALENDAR YEAR. THE ELECTION CANNOT BE REVOKED WITHOUT THE CONSENT OF THE IRS. 
  

							
	Dated:             ,         	 		 		 	  

		 		 		 	Taxpayer’s Signature

 EXHIBIT 4 

COPY OF PURCHASER’S CHECK 

 No.              

IMPEL NEUROPHARMA, INC. 

2008 EQUITY INCENTIVE PLAN 

STOCK OPTION AGREEMENT 

This Stock Option Agreement (the “Agreement”) is made and entered into as of the date of grant set forth below (the
“Date of Grant”) by and between Impel NeuroPharma, Inc., a Delaware corporation (the “Company”), and the participant named below (the “Participant”). Capitalized terms not
defined herein shall have the meaning ascribed to them in the Company’s 2008 Equity Incentive Plan (the “Plan”). 
  

			
	Participant:	  	                                     
                                         
  
		
	Social Security Number:	  	                                     
                                         
  
		
	Address:	  	                                     
                                         
  
		
		  	                                     
                                         
  
		
	Total Option Shares:	  	                                     
                                         
  
		
	Exercise Price Per Share:	  	                                     
                                         
  
		
	Date of Grant:	  	                                     
                                         
  
		
	Vesting Commencement Date:	  	                                     
                                         
  
		
	First Vesting Date:	  	                                     
                                         
  
		
	Expiration Date:	  	                                     
                                         
  
		  	(unless earlier terminated under Section 5.6 of the Plan)
		
	Classification of Optionee	  	 ☐   Exempt Employee

		
		  	 ☐   Nonexempt Employee

		
	Type of Stock Option (Check one):	  	 ☐   Incentive Stock Option

		
		  	 ☐   Nonqualified Stock Option

 1.    Grant of Option. The Company hereby grants to
Participant an option (this “Option”) to purchase the total number of shares of Common Stock of the Company set forth above as Total Option Shares (the “Shares”) at the Exercise Price Per Share set
forth above (the “Exercise Price”), subject to all of the terms and conditions of this Agreement and the Plan. If designated as an Incentive Stock Option above, the Option is intended to qualify as an “incentive stock
option” (the “ISO”) within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the “Code”). 

2.    Exercise Period. 

2.1    Exercise Period of Option. Provided Participant continues to provide services to the Company or any
Subsidiary or Parent of the Company, the Option will become vested and exercisable as to portions of the Shares as follows: (i) this Option shall not vest nor 

  
 1 

 
be exercisable with respect to any of the Shares until the First Vesting Date set forth on the first page of this Agreement (the “First Vesting Date”); (ii) on the
First Vesting Date the Option will become vested and exercisable as to                  of the Shares [USUALLY 1/5th OR 1/4th]; and (iii) thereafter
the Option will become vested and exercisable monthly as to                      [USUALLY 1/48th IF 4 YEAR VESTING; 1/60th
IF 5 YEAR VESTING] of the Shares until the Shares are vested with respect to all of the Shares. If application of the vesting percentage causes a fractional share, such share shall be rounded down to the nearest whole share for each month
except for the last month in such vesting period, at the end of which last month this Option shall become exercisable for the full remainder of the Shares. 

2.2    Vesting and Order of Exercise. Shares that are vested pursuant to the schedule set forth in Section 2.1
are “Vested Shares.” Shares that are not vested pursuant to the schedule set forth in Section 2.1 are “Unvested Shares.” 

2.3    Expiration. The Option shall expire on the Expiration Date set forth above or earlier as provided in
Section 3 below or in the Plan. 
 3.    Termination. Subject to the provisions of the
Plan and this Agreement, the Participant may exercise all or any part of the Vested Portion of the Option at any time prior to the earliest to occur of: 

3.1    The Expiration Date. 

3.2    One year following Participant’s Termination due to death or Disability (Any exercise occurring beyond twelve
(12) months after such Termination Date, when for Participant’s death or Disability is deemed to be of an Option that is not an ISO). 

3.3    Three (3) months following Participant’s Termination Date when Termination is by the Company without
Cause or by Participant for any reason. 
 3.4    Thirty (30) days following Participant’s Termination Date
when Participant’s Termination is for Cause. 
 3.5    No Obligation to Employ. Nothing in the Plan or this
Agreement shall confer on Participant any right to continue in employment with the Company or any Parent or Subsidiary, or limit in any way the right of the Company or any Parent or Subsidiary to terminate Participant’s employment at any time,
with or without Cause. 
 4.    Manner of Exercise. 

4.1    Stock Option Exercise Agreement. To exercise this Option, Participant (or in the case of exercise after
Participant’s death or incapacity, Participant’s executor, administrator, heir or legatee, as the case may be) must deliver to the Company an executed stock option exercise agreement in the form attached hereto as Exhibit A, or in
such other form as may be approved by the Committee from time to time (the “Exercise Agreement”), which shall set forth, inter alia, (i) Participant’s election to exercise the Option, (ii) the
number of Shares being purchased, (iii) any restrictions imposed on the Shares and (iv) any representations, warranties and agreements regarding Participant’s investment intent and access to information as may be required by the
Company to comply with applicable securities laws. If someone other 

  
 2 

 
than Participant exercises the Option, then such person must submit documentation reasonably acceptable to the Company verifying that such person has the legal right to exercise the Option and
such person shall be subject to all of the restrictions contained herein as if such person were the Participant. 

4.2    Limitations on Exercise. The Option may not be exercised unless such exercise is in compliance with all
applicable federal and state securities laws, as they are in effect on the date of exercise. 
 4.3    Payment.
The Exercise Agreement shall be accompanied by full payment of the Exercise Price for the shares being purchased in cash (by check), or where permitted by law: 

(a)    by cancellation of indebtedness of the Company to the Participant; 

(b)    by surrender of shares of the Company’s Common Stock that (i) have been paid for within the meaning of
SEC Rule 144; and (ii) are clear of all liens, claims, encumbrances or security interests; 
 (c)    by waiver of
compensation due or accrued to Participant for services rendered; 
 (d)    provided that a public market for the
Company’s stock exists: (i) through a “same day sale” commitment from Participant and a broker-dealer designated by the Company (a “Dealer”) whereby Participant irrevocably elects to exercise the Option and to
sell a portion of the Shares so purchased sufficient to pay for the total Exercise Price and whereby the Dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company, or (ii) through a
“margin” commitment from Participant and a Dealer whereby Participant irrevocably elects to exercise the Option and to pledge the Shares so purchased to the Dealer in a margin account as security for a loan from the Dealer in the amount of
the total Exercise Price, and whereby the Dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or 

(e)    any other form of consideration approved by the Committee; or 

(f)    by any combination of the foregoing. 

4.4    Tax Withholding. Prior to the issuance of the Shares upon exercise of the Option, Participant must pay or
provide for any applicable federal, state and local withholding obligations of the Company. If the Committee permits, Participant may provide for payment of withholding taxes upon exercise of the Option by requesting that the Company retain the
minimum number of Shares with a Fair Market Value equal to the minimum amount of taxes required to be withheld; but in no event will the Company withhold Shares if such withholding would result in adverse accounting consequences to the Company. In
such case, the Company shall issue the net number of Shares to the Participant by deducting the Shares retained from the Shares issuable upon exercise. 

4.5    Issuance of Shares. Provided that the Exercise Agreement and payment are in form and substance satisfactory
to counsel for the Company, the Company shall issue the Shares registered in the name of Participant, Participant’s authorized assignee, or Participant’s legal representative, and shall deliver certificates representing the Shares with the
appropriate legends affixed thereto. 

  
 3 

 5.    Notice of Disqualifying Disposition of ISO
Shares. If the Option is an ISO, and if Participant sells or otherwise disposes of any of the Shares acquired pursuant to the ISO on or before the later of (i) the date two (2) years after the Date of Grant, and
(ii) the date one (1) year after transfer of such Shares to Participant upon exercise of the Option, Participant shall immediately notify the Company in writing of such disposition. Participant agrees that Participant may be subject to
income tax withholding by the Company on the compensation income recognized by Participant from the early disposition by payment in cash or out of the current wages or other compensation payable to Participant. 

6.    Compliance with Laws and Regulations. The Plan and this Agreement are intended to comply
with all applicable laws and any regulations relating thereto. The exercise of the Option and the issuance and transfer of Shares shall be subject to compliance by the Company and Participant with all applicable requirements of federal and state
securities laws and with all applicable requirements of any stock exchange on which the Company’s Common Stock may be listed at the time of such issuance or transfer. Participant understands that the Company is under no obligation to register
or qualify the Shares with the SEC, any state securities commission or any stock exchange to effect such compliance. 

7.    Nontransferability of Option. The Option may not be transferred in any manner other than
by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to an inter vivos or testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor), or by gift to
“immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Participant only by Participant or in the event of Participant’s incapacity, by
Participant’s legal representative. The terms of the Option shall be binding upon the executors, administrators, successors and assigns of Participant. 

8.    Reserved. 

9.    Company’s Right of First Refusal. Before any Vested Shares held by Participant or
any transferee of such Vested Shares may be sold or otherwise transferred (including without limitation a transfer by gift or operation of law), the Company and/or its assignee(s) shall have an assignable right of first refusal to purchase the
Vested Shares to be sold or transferred on the terms and conditions set forth in the Exercise Agreement (the “Right of First Refusal”). The Company’s Right of First Refusal will terminate when the Company’s
securities become publicly traded. 
 10.    Tax Consequences. Set forth below is a brief
summary as of the Effective Date of the Plan of some of the federal tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. PARTICIPANT
SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE OPTION OR DISPOSING OF THE SHARES. 
 10.1    Exercise of ISO.
If the Option qualifies as an ISO, there will be no regular federal income tax liability upon the exercise of the Option, although the excess, if any, of the 

  
 4 

 
Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as a tax preference item for federal alternative minimum tax purposes and may subject the
Participant to the alternative minimum tax in the year of exercise. 
 10.2    Exercise of Nonqualified Stock
Option. If the Option does not qualify as an ISO, there may be a regular federal income tax liability upon the exercise of the Option. Participant will be treated as having received compensation income (taxable at ordinary income tax rates)
equal to the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. If Participant is a current or former employee of the Company, the Company may be required to withhold from Participant’s
compensation or collect from Participant and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income at the time of exercise. 

10.3    Disposition of Shares. The following tax consequences may apply upon disposition of the Shares. 

(a)    Incentive Stock Options. If the Shares are held for more than twelve (12) months after the date of
purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for federal income tax
purposes. When Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at ordinary income rates in the
year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. 

(b)    Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of
the transfer of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain. 

(c)    Withholding. The Company may be required to withhold from the Participant’s compensation or collect
from the Participant and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income. 

11.    Privileges of Stock Ownership. Participant shall not have any of the rights of a
stockholder with respect to any Shares until the Shares are issued to Participant. 

12.    Interpretation. Any dispute regarding the interpretation of this Agreement shall be
submitted by Participant or the Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and Participant. 

13.    Entire Agreement. The Plan is incorporated herein by reference. This Agreement and the
Plan constitute the entire agreement and understanding of the parties with respect to the subject matter of this Agreement, and supersede all prior understandings and agreements, whether oral or written, between or among the parties hereto with
respect to the specific subject matter hereof. 
 14.    Notices. Any and all notices
required or permitted to be given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at

  
 5 

 
the time of personal delivery, if delivery is in person; (ii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter
modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iii) one (1) business day after deposit with an
express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (iv) three (3) business days
after deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. 
 All notices for
delivery outside the United States will be sent by facsimile, air mail or express courier. All notices not delivered personally or by facsimile will be sent with postage and/or other charges prepaid and properly addressed to the party to be
notified at the address set forth below the signature lines of this Agreement, or at such other address as such other party may designate by one of the indicated means of notice herein to the other parties hereto. Notices to the Company will be
marked “Attention: Corporate Secretary”. Notices by facsimile shall be machine verified as received. 

15.    Successors and Assigns. The Company may assign any of its rights under this Agreement
including its rights to purchase Shares under the Right of First Refusal. No other party to this Agreement may assign, whether voluntarily or by operation of law, any of its rights and obligations under this Agreement, except with the prior
written consent of the Company. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be binding upon Participant
and Participant’s heirs, executors, administrators, legal representatives, successors and assigns. 

16.    Governing Law. This Agreement shall be governed by and construed in accordance with the
internal laws of the State of Washington as such laws are applied to agreements between Washington residents entered into and to be performed entirely within Washington, excluding that body of laws pertaining to conflict of laws. If any
provision of this Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable. 

17.    Acceptance. Participant hereby acknowledges receipt of a copy of the Plan and this
Agreement. Participant has read and understands the terms and provisions thereof, and accepts the Option subject to all the terms and conditions of the Plan and this Agreement. Participant acknowledges that there may be adverse tax consequences upon
exercise of the Option or disposition of the Shares and that Participant should consult a tax adviser prior to such exercise or disposition. 

18.    Further Assurances. The parties agree to execute such further documents and instruments
and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement. 

19.    Titles and Headings. The titles, captions and headings of this Agreement are included
for ease of reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and
“exhibits” to this Agreement. 

  
 6 

 20.    Counterparts. This Agreement may be
executed in any number of counterparts, each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement. 

21.    Severability. If any provision of this Agreement is determined by any court or
arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced,
such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Agreement.
Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be
binding, then both parties agree to substitute such provision(s) through good faith negotiations. 

22.    Facsimile Signatures. This Agreement may be executed and delivered by facsimile and
upon such delivery the facsimile signature will be deemed to have the same effect as if the original signature had been delivered to the other party. 

IN WITNESS WHEREOF, the Company has caused this Agreement to be executed in triplicate by its duly authorized representative and
Participant has executed this Agreement in triplicate, effective as of the Date of Grant. 
  

									
	IMPEL NEUROPHARMA, INC.	 		 	PARTICIPANT
				
	By:	 	
                     
                                         
                               
	 	            	 	  

		 		 		 	Signature

									
			
	  

(Please print name)
	 		 	  

(Please print name)

			
	  
 (Please print
title
	 		 	
	Address:	 	
                     

	 		 	Address:	 	
                     

			
	  
	 		 	  

			
	  
	 		 	  

					
	Fax No.:	 	
                     
        
	 		 	Fax No.:	 	
                     
        

									
					
	Phone No.:	 	
                     
    
	 		 	Phone No.:	 	
                     
        

 Attachment: 
 Exhibit A
– Stock Option Exercise Agreement 

  
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 EXHIBIT A 

STOCK OPTION EXERCISE AGREEMENT 

 No.              

IMPEL NEUROPHARMA, INC. 

2008 EQUITY INCENTIVE PLAN 

STOCK OPTION EXERCISE AGREEMENT 

This Stock Option Exercise Agreement (the “Exercise Agreement”) is made and entered into as of
            ,          (the “Effective Date”) by and between Impel NeuroPharma, Inc., a Delaware corporation (the
“Company”), and the purchaser named below (the “Purchaser”). Capitalized terms not defined herein shall have the meanings ascribed to them in the Company’s 2008 Equity Incentive Plan (the
“Plan”). 
  

			
	Purchaser:	  	  

		
		  	  

		
	Social Security Number:	  	  

		
	Address:	  	  

		
		  	  

		
	Total Number of Shares:	  	  

		
	Exercise Price Per Share:	  	  

		
	Date of Grant:	  	  

		
	Expiration Date:	  	  

		  	(Unless earlier terminated under Section 5.6 of the Plan)
		
	Type of Stock Option (Check one):	  	 ☐   Incentive Stock Option

		  	 ☐   Nonqualified Stock Option

 1.    Exercise of Option. 

1.1    Exercise. Pursuant to exercise of that certain option (the “Option”) granted to
Purchaser under the Plan and subject to the terms and conditions of this Exercise Agreement, Purchaser hereby purchases from the Company, and the Company hereby sells to Purchaser, the Total Number of Shares set forth above (the
“Shares”) of the Company’s Common Stock at the Exercise Price Per Share set forth above (the “Exercise Price”). As used in this Exercise Agreement, the term “Shares” refers
to the Shares purchased under this Exercise Agreement and includes all securities received (i) in replacement of the Shares, (ii) as a result of stock dividends or stock splits with respect to the Shares, and (iii) all securities
received in replacement of the Shares in a merger, recapitalization, reorganization or similar corporate transaction. 

  
 1 

 1.2    Title to Shares. The exact spelling of Purchaser’s
name under which Purchaser will take title to the Shares is: 
  

                       
                                         
                                         
                                         
                                         
                          

1.3    Payment. Purchaser hereby delivers payment of the Exercise Price in the manner permitted in the Stock Option
Agreement as follows (check and complete as appropriate): 
  

	 	☐	 in cash (by check) in the amount of $        , receipt of which is
acknowledged by the Company; 

  

	 	☐	 by cancellation of indebtedness of the Company owed to Purchaser in the amount of
$        ; 

  

	 	☐	 by delivery of          fully-paid, nonassessable and vested shares of
Company Common Stock owned by Purchaser which have been paid for within the meaning of SEC Rule 144 and are free and clear of all liens, claims, encumbrances or security interests, valued at the current Fair Market Value of
$         per share; or 

  

	 	☐	 by the waiver hereby of compensation due or accrued for services rendered in the amount of
$        . 

 2.    Delivery. 

2.1    Deliveries by Purchaser. Purchaser hereby delivers to the Company (i) this Exercise Agreement,
(ii) two (2) copies of a blank Stock Power and Assignment Separate from Stock Certificate in the form of Exhibit 1 attached hereto (the “Stock Powers”), both executed by Purchaser (and Purchaser’s spouse, if
any), (iii) if Purchaser is married, a Consent of Spouse in the form of Exhibit 2 attached hereto (the “Spouse Consent”) executed by Purchaser’s spouse, (iv) the Exercise Price (if payment is by check, then a
copy is attached hereto as Exhibit 3) and (v) payment or other provision for any applicable tax obligations in the form of a check, a copy of which is attached hereto as Exhibit 3. 

2.2    Deliveries by the Company. Upon its receipt of the Exercise Price, payment or other provision for any
applicable tax obligations and all the documents to be executed and delivered by Purchaser to the Company under Section 2.1, the Company will issue a duly executed stock certificate evidencing the Shares in the name of Purchaser to be placed in
escrow as provided below until expiration or termination of the Company’s Right of First Refusal described below. 

3.    Representations and Warranties of Purchaser. Purchaser represents and warrants to the
Company that: 
 3.1    Agrees to Terms of the Plan. Purchaser has received a copy of the Plan and the Stock
Option Agreement, has read and understands the terms of the Plan, the Stock Option Agreement and this Exercise Agreement, and agrees to be bound by their terms and conditions. Purchaser acknowledges that there may be adverse tax consequences upon
exercise of the Option or disposition of the Shares, and that Purchaser should consult a tax adviser prior to such exercise or disposition. 

  
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 3.2    Purchase for Own Account for Investment. Purchaser is
purchasing the Shares for Purchaser’s own account for investment purposes only and not with a view to, or for sale in connection with, a distribution of the Shares within the meaning of the Securities Act. Purchaser has no present intention of
selling or otherwise disposing of all or any portion of the Shares and no one other than Purchaser has any beneficial ownership of any of the Shares. 

3.3    Access to Information. Purchaser has had access to all information regarding the Company and its present and
prospective business, assets, liabilities and financial condition that Purchaser reasonably considers important in making the decision to purchase the Shares, and Purchaser has had ample opportunity to ask questions of the Company’s
representatives concerning such matters and this investment. 
 3.4    Understanding of Risks. Purchaser is fully
aware of: (i) the highly speculative nature of the investment in the Shares; (ii) the financial hazards involved; (iii) the lack of liquidity of the Shares and the restrictions on transferability of the Shares (e.g., that
Purchaser may not be able to sell or dispose of the Shares or use them as collateral for loans); (iv) the qualifications and backgrounds of the management of the Company; and (v) the tax consequences of investment in the Shares. Purchaser is
capable of evaluating the merits and risks of this investment, has the ability to protect Purchaser’s own interests in this transaction and is financially capable of bearing a total loss of this investment. 

3.5    No General Solicitation. At no time was Purchaser presented with or solicited by any publicly issued or
circulated newspaper, mail, radio, television or other form of general advertising or solicitation in connection with the offer, sale and purchase of the Shares. 

4.    Compliance with Securities Laws. Purchaser understands and acknowledges that the Shares
have not been registered with the SEC under the Securities Act and that, notwithstanding any other provision of the Stock Option Agreement to the contrary, the exercise of any rights to purchase any Shares is expressly conditioned upon compliance
with the Securities Act and all applicable state securities laws. Purchaser agrees to cooperate with the Company to ensure compliance with such laws. 

5.    Restricted Securities. 

5.1    No Transfer Unless Registered or Exempt. Purchaser understands that Purchaser may not transfer any Shares
unless such Shares are registered under the Securities Act or qualified under applicable state securities laws or unless, in the opinion of counsel to the Company, exemptions from such registration and qualification requirements are available.
Purchaser understands that only the Company may file a registration statement with the SEC and that the Company is under no obligation to do so with respect to the Shares. Purchaser has also been advised that exemptions from registration and
qualification may not be available or may not permit Purchaser to transfer all or any of the Shares in the amounts or at the times proposed by Purchaser. 

5.2    SEC Rule 144. In addition, Purchaser has been advised that SEC Rule 144 promulgated under the Securities
Act, which permits certain limited sales of unregistered securities, is not presently available with respect to the Shares and, in any event, requires that the Shares be held for a six (6) months, and in certain cases one (1) year, after
they have been purchased and paid for (within the meaning of Rule 144). Purchaser understands that Rule 144 may indefinitely restrict transfer of the Shares so long as Purchaser remains an “affiliate” of the Company or if
“current public information” about the Company (as defined in Rule 144) is not publicly available. 

  
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 5.3    SEC Rule 701. The Shares are issued
pursuant to SEC Rule 701 promulgated under the Securities Act and may become freely tradeable by non-affiliates (under limited conditions regarding the method of sale) ninety (90) days after the
first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC, subject to the lengthier market standoff agreement set forth below or any other agreement entered into
by Purchaser. Affiliates must comply with the provisions (other than the holding period requirements) of Rule 144. 

6.    Restrictions on Transfers. 

6.1    Disposition of Shares. Purchaser hereby agrees that Purchaser shall make no disposition of the Shares (other
than as permitted by this Exercise Agreement) unless and until: 
 (a)    Purchaser shall have notified the Company of
the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition; 

(b)    Purchaser shall have complied with all requirements of this Exercise Agreement applicable to the disposition of
the Shares; 
 (c)    Purchaser shall have provided the Company with written assurances, in form and substance
satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or (ii) all appropriate actions necessary for compliance with the registration requirements of
the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) have been taken; and 

(d)    Purchaser shall have provided the Company with written assurances, in form and substance satisfactory to the
Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares. 

6.2    Restriction on Transfer. Purchaser shall not transfer, assign, grant a lien or security interest in, pledge,
hypothecate, encumber or otherwise dispose of any of the Shares which are subject to the Company’s Right of First Refusal described below, except as permitted by this Exercise Agreement. 

6.3    Transferee Obligations. Each person (other than the Company) to whom the Shares are transferred by means of
one of the permitted transfers specified in this Exercise Agreement must, as a condition precedent to the validity of such transfer, acknowledge in writing to the Company that such person is bound by the provisions of this Exercise Agreement and
that the transferred Shares are subject to (i) the Company’s Right of First Refusal granted hereunder and (ii) the market stand-off provisions of Section 7 hereof, to the same extent such
Shares would be so subject if retained by the Purchaser. 
 7.    Market Standoff Agreement.
Purchaser agrees in connection with any registration of the Company’s securities that, upon the request of the Company or the underwriters managing any public offering of the Company’s securities, Purchaser will not sell

  
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or otherwise dispose of any Shares without the prior written consent of the Company or such underwriters, as the case may be, for such period of time (not to exceed one hundred eighty
(180) days) after the effective date of such registration requested by such managing underwriters and subject to all restrictions as the Company or the underwriters may specify. Purchaser further agrees to enter into any agreement reasonably
required by the underwriters to implement the foregoing. 
 8.    Reserved. 

9.    Company’s Right of First Refusal. Before any Shares held by Purchaser or any
transferee of such Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s)
will have a right of first refusal to purchase the Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First Refusal”). 

9.1    Notice of Proposed Transfer. The Holder of the Offered Shares will deliver to the Company a written notice
(the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (ii) the name and address of each proposed purchaser or other transferee (the “Proposed
Transferee”); (iii) the number of Offered Shares to be transferred to each Proposed Transferee; (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Offered Shares (the
“Offered Price”); and (v) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its assignee(s) pursuant to the Company’s Right of First Refusal at the Offered Price
as provided for in this Exercise Agreement. 
 9.2    Exercise of Right of First Refusal. At any time within
thirty (30) days after the date of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or, with the consent of the Holder, less than all) the Offered Shares proposed to be
transferred to any one or more of the Proposed Transferees named in the Notice, at the purchase price, determined as specified below. 

9.3    Purchase Price. The purchase price for the Offered Shares purchased under this Section will be the Offered
Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift) the purchase price will be the fair market value of the Offered Shares as determined in good faith by the
Company’s Board of Directors. If the Offered Price includes consideration other than cash, then the value of the non-cash consideration, as determined in good faith by the Company’s Board of
Directors, will conclusively be deemed to be the cash equivalent value of such non-cash consideration. 

9.4    Payment. Payment of the purchase price for the Offered Shares will be payable, at the option of the Company
and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by the Holder to the Company (or to such assignee, in the case of a purchase of Offered Shares by such
assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its assignee(s), in the manner and at the
time(s) set forth in the Notice. 
 9.5    Holder’s Right to Transfer. If all of the Offered Shares proposed
in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise transfer 

  
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such Offered Shares to each Proposed Transferee at the Offered Price or at a higher price, provided that (i) such sale or other transfer is consummated within one hundred twenty
(120) days after the date of the Notice, (ii) any such sale or other transfer is effected in compliance with all applicable securities laws, and (iii) each Proposed Transferee agrees in writing that the provisions of this Section will
continue to apply to the Offered Shares in the hands of such Proposed Transferee. If the Offered Shares described in the Notice are not transferred to each Proposed Transferee within such one hundred twenty (120) day period, then a new Notice
must be given to the Company pursuant to which the Company will again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 

9.6    Exempt Transfers. Notwithstanding anything to the contrary in this Section, the following transfers of
Vested Shares will be exempt from the Right of First Refusal: (i) the transfer of any or all of the Vested Shares during Purchaser’s lifetime by gift or on Purchaser’s death by will or intestacy to Purchaser’s “Immediate
Family” (as defined below) or to a trust for the benefit of Purchaser or Purchaser’s Immediate Family, provided that each transferee or other recipient agrees in a writing satisfactory to the Company that the provisions of this Section
will continue to apply to the transferred Vested Shares in the hands of such transferee or other recipient; (ii) any transfer of Vested Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another
corporation or corporations (except that the Right of First Refusal will continue to apply thereafter to such Vested Shares, in which case the surviving corporation of such merger or consolidation shall succeed to the rights of the Company under
this Section unless the agreement of merger or consolidation expressly otherwise provides); or (iii) any transfer of Vested Shares pursuant to the winding up and dissolution of the Company. As used herein, the term “Immediate
Family” will mean Purchaser’s spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of the Purchaser or the Purchaser’s spouse, or the spouse of
any of the above or Spousal Equivalent, as defined herein. As used herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not the Participant
and the Spousal Equivalent are the same sex, they are the sole spousal equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else, (iv) both are at
least 18 years of age and mentally competent to consent to contract, (v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside, (vi) they are jointly
responsible for each other’s common welfare and financial obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely. 

9.7    Termination of Right of First Refusal. The Right of First Refusal will terminate as to all Shares
(i) on the effective date of the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the 1933 Act (other than a registration statement relating
solely to the issuance of Common Stock pursuant to a business combination or an employee incentive or benefit plan) or (ii) on any transfer or conversion of Shares made pursuant to a statutory merger or statutory consolidation of the Company
with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect parent corporation thereof is registered under the Securities Exchange Act of 1934, as amended. 

9.8    Encumbrances on Vested Shares. Purchaser may grant a lien or security interest in, or pledge, hypothecate or
encumber Vested Shares only if each party to whom such lien or security interest is granted, or to whom such pledge, hypothecation or other encumbrance 

  
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is made, agrees in a writing satisfactory to the Company that: (i) such lien, security interest, pledge, hypothecation or encumbrance will not apply to such Vested Shares after they are
acquired by the Company and/or its assignees under this Section; and (ii) the provisions of this Section will continue to apply to such Vested Shares in the hands of such party and any transferee of such party. Purchaser may not grant a lien or
security interest in, or pledge, hypothecate or encumber, any Unvested Shares. 
 10.    Rights as a
Stockholder. Subject to the terms and conditions of this Exercise Agreement, Purchaser will have all of the rights of a Stockholder of the Company with respect to the Shares from and after the date that Shares are issued to Purchaser
until such time as Purchaser disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Right of First Refusal. Upon an exercise of the Right of First Refusal, Purchaser will have no further rights as a holder of the Shares so
purchased upon such exercise, other than the right to receive payment for the Shares so purchased in accordance with the provisions of this Exercise Agreement, and Purchaser will promptly surrender the stock certificate(s) evidencing the Shares so
purchased to the Company for transfer or cancellation. 
 11.    Escrow. As security for
Purchaser’s faithful performance of this Exercise Agreement, Purchaser agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares, to deliver such certificate(s), together with the Stock Powers executed by Purchaser and
by Purchaser’s spouse, if any (with the date and number of Shares left blank), to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to hold such certificate(s)
and Stock Powers in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Exercise Agreement. Purchaser and the Company agree that Escrow Holder will not
be liable to any party to this Exercise Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow Holder under this Exercise Agreement.
Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions contemplated by this Exercise
Agreement. The Shares will be released from escrow upon termination of the Right of First Refusal. 

12.    Restrictive Legends and Stop-Transfer Orders. 

12.1    Legends. Purchaser understands and agrees that the Company will place the legends set forth below or similar
legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by state or U.S. Federal securities laws, the Company’s Articles of Incorporation or Bylaws, any other agreement between Purchaser
and the Company or any agreement between Purchaser and any third party: 
 THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS
PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF
TIME. THE ISSUER OF THESE SECURITIES MAY 

  
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REQUIRE AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE
STATE SECURITIES LAWS. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON PUBLIC RESALE AND
TRANSFER, INCLUDING AS APPLICABLE, THE RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A STOCK OPTION EXERCISE AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE
OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH PUBLIC SALE AND TRANSFER RESTRICTIONS INCLUDING THE RIGHT OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A 180 DAY MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN AGREEMENT
BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE EFFECTIVE DATE OF ANY PUBLIC
OFFERING OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES. 

12.2    Stop-Transfer Instructions. Purchaser agrees that, to ensure compliance with the restrictions imposed by
this Exercise Agreement, the Company may issue appropriate “stop-transfer” instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make appropriate notations to the same effect in its own
records. 
 12.3    Refusal to Transfer. The Company will not be required (i) to transfer on its books any
Shares that have been sold or otherwise transferred in violation of any of the provisions of this Exercise Agreement or (ii) to treat as owner of such Shares, or to accord the right to vote or pay dividends to any purchaser or other transferee
to whom such Shares have been so transferred. 
 13.    Tax Consequences. PURCHASER
UNDERSTANDS THAT PURCHASER MAY SUFFER ADVERSE TAX CONSEQUENCES AS A RESULT OF PURCHASER’S PURCHASE OR DISPOSITION OF THE SHARES. PURCHASER REPRESENTS: (i) THAT PURCHASER HAS CONSULTED WITH ANY TAX ADVISER THAT PURCHASER DEEMS ADVISABLE IN
CONNECTION WITH THE PURCHASE OR DISPOSITION OF THE SHARES AND (ii) THAT PURCHASER IS NOT RELYING ON THE COMPANY FOR ANY TAX ADVICE. Set forth below is a brief summary as of the date the Plan was adopted by the Board of some of the U.S. Federal
tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. PURCHASER SHOULD CONSULT HIS OR HER OWN TAX ADVISER BEFORE EXERCISING THIS
OPTION OR DISPOSING OF THE SHARES. 
 13.1    Exercise of Incentive Stock Option. If the Option qualifies as an
ISO, there will be no regular U.S. Federal income tax liability upon the exercise of the Option, although the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as a tax preference
item for U.S. Federal alternative minimum tax purposes and may subject Purchaser to the alternative minimum tax in the year of exercise. 

  
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 13.2    Exercise of Nonqualified Stock Option. If the Option does
not qualify as an ISO, there may be a regular U.S. Federal income tax liability upon the exercise of the Option. Purchaser will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of
the Fair Market Value of the Shares on the date of exercise over the Exercise Price. If Purchaser is or was an employee of the Company, the Company may be required to withhold from Purchaser’s compensation or collect from Purchaser and pay to
the applicable taxing authorities an amount equal to a percentage of this compensation income at the time of exercise. 

13.3    Disposition of Shares. The following tax consequences may apply upon disposition of the Shares. 

(a)    Incentive Stock Options. If the Shares are held for more than twelve (12) months after the date of
purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for federal income tax
purposes. When Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at ordinary income rates in the
year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. 

(b)    Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of
the transfer of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain. 

(c)    Withholding. The Company may be required to withhold from the Purchaser’s compensation or collect from
the Purchaser and pay to the applicable taxing authorities an amount equal to a percentage of this compensation income. 

14.    Compliance with Laws and Regulations. The issuance and transfer of the Shares will be
subject to and conditioned upon compliance by the Company and Purchaser with all applicable state and U.S. Federal laws and regulations and with all applicable requirements of any stock exchange or automated quotation system on which the
Company’s Common Stock may be listed or quoted at the time of such issuance or transfer. 

15.    Successors and Assigns. The Company may assign any of its rights and obligations under
this Exercise Agreement, including its rights to purchase Shares under the Right of First Refusal. No other party to this Exercise Agreement may assign, whether voluntarily or by operation of law, any of its rights and obligations under this
Exercise Agreement, except with the prior written consent of the Company. This Exercise Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth,
this Exercise Agreement will be binding upon Purchaser and Purchaser’s heirs, executors, administrators, legal representatives, successors and assigns. 

16.    Governing Law. This Exercise Agreement shall be governed by and construed in accordance
with the internal laws of the State of Washington as such laws are applied to 

  
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agreements between Washington residents entered into and to be performed entirely within Washington, excluding that body of laws pertaining to conflict of laws. If any provision of this
Exercise Agreement is determined by a court of law to be illegal or unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable. 

17.    Notices. Any and all notices required or permitted to be given to a party pursuant to
the provisions of this Exercise Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Exercise Agreement on the earliest of the following: (i) at the time of personal delivery, if
delivery is in person; (ii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by
both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iii) one (1) business day after deposit with an express overnight courier for United States deliveries, or two (2) business days
after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (iv) three (3) business days after deposit in the United States mail by certified mail (return receipt requested) for United
States deliveries. 
 All notices for delivery outside the United States will be sent by facsimile, air mail or express courier. All notices
not delivered personally, or by facsimile, will be sent with postage and/or other charges prepaid and properly addressed to the party to be notified at the address set forth below the signature lines of this Exercise Agreement, or at such other
address as such other party may designate by one of the indicated means of notice herein to the other parties hereto. Notices to the Company will be marked “Attention: President”. Notices by facsimile shall be machine verified as received.

 18.    Further Assurances. The parties agree to execute such further documents and
instruments and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Exercise Agreement. 

19.    Titles and Headings. The titles, captions and headings of this Exercise Agreement are
included for ease of reference only and will be disregarded in interpreting or construing this Exercise Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean
“sections” and “exhibits” to this Exercise Agreement. 
 20.    Entire
Agreement. The Plan, the Stock Option Agreement and this Exercise Agreement, together with all Exhibits thereto, constitute the entire agreement and understanding of the parties with respect to the subject matter of this Exercise
Agreement, and supersede all prior understandings and agreements, whether oral or written, between or among the parties hereto with respect to the specific subject matter hereof. 

21.    Counterparts. This Exercise Agreement may be executed in any number of counterparts,
each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement. 

22.    Severability. If any provision of this Exercise Agreement is determined by any court or
arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced,
such provision shall be stricken from this Exercise Agreement and the remainder of this Exercise Agreement shall be enforced as if 

  
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such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Exercise Agreement. Notwithstanding the forgoing, if the value of this
Exercise Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be binding, then both parties agree to
substitute such provision(s) through good faith negotiations. 
 23.    Facsimile
Signatures. This Exercise Agreement may be executed and delivered by facsimile and upon such delivery the facsimile signature will be deemed to have the same effect as if the original signature had been delivered to the other party.

 IN WITNESS WHEREOF, the Company has caused this Exercise Agreement to be executed in triplicate by its duly authorized representative and
Purchaser has executed this Exercise Agreement in triplicate as of the Effective Date, indicated above. 
  

									
	IMPEL NEUROPHARMA, INC.	 		 	PURCHASER
				
	By:	 	
                     
                                         
                   
	 		 	  

		 		 		 	(Signature)	 	

									
			
	  
	 		 	  

	(Please print name)	 		 	(Please print name)
			
	  
	 		 	  

	(Please print title)	 		 		 	
					
	Address:	 		 		 	Address:	 	
			
	  
	 		 	  

			
	  
	 		 	  

			
	  
	 		 	  

					
	Fax No.:	 	  
	 		 	Fax No.	 	  

									
					
	Phone No.:	 	  
	 		 	Phone No.:	 	  

 LIST OF EXHIBITS 
  

			
	Exhibit 1:	  	Stock Power and Assignment Separate from Stock Certificate
		
	Exhibit 2:	  	Spouse Consent
		
	Exhibit 3:	  	Copy of Purchaser’s Check

  
 11 

 EXHIBIT 1 

STOCK POWER AND ASSIGNMENT 

SEPARATE FROM STOCK CERTIFICATE 

  
 12 

 Stock Power and Assignment 

Separate from Stock Certificate 

FOR VALUE RECEIVED and pursuant to that certain Stock Option Exercise Agreement No.
            [TO BE COMPLETED AT THE TIME OF EXERCISE] dated as of             ,
        , [TO BE COMPLETED AT THE TIME OF EXERCISE] (the “Agreement”), the undersigned hereby sells, assigns and transfers unto
                    ,                 shares of the Common Stock of
Impel NeuroPharma, Inc., a Delaware corporation (the “Company”), standing in the undersigned’s name on the books of the Company represented by Certificate No(s).
            [TO BE COMPLETED AT THE TIME OF EXERCISE] delivered herewith, and does hereby irrevocably constitute and appoint the Secretary of the Company as the
undersigned’s attorney-in-fact, with full power of substitution, to transfer said stock on the books of the Company. THIS ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED
BY THE AGREEMENT AND ANY EXHIBITS THERETO. 
 Dated:             ,
         
  

	
	PURCHASER
	
	      

	(Signature)
	
	  

	(Please Print Name)
	
	  

	(Spouse’s Signature, if any)
	
	  

	(Please Print Spouse’s Name)

 Instructions to Purchaser: Please do not fill in any blanks other than the signature line. The
purpose of this Stock Power and Assignment is to enable the Company to acquire the shares and to exercise its “Right of First Refusal” set forth in the Exercise Agreement without requiring additional signatures on the part of the Purchaser
or Purchaser’s Spouse. 

  
 13 

 EXHIBIT 2 

SPOUSE CONSENT 

  
 14 

 Spouse Consent 

The undersigned spouse of
                    (the “Purchaser”) has read, understands, and hereby approves the Stock Option Exercise Agreement between
Purchaser and the Company (the “Agreement”). In consideration of the Company’s granting my spouse the right to purchase the Shares as set forth in the Agreement, the undersigned hereby agrees to be irrevocably bound by
the Agreement and further agrees that any community property interest I may have in the Shares shall similarly be bound by the Agreement. The undersigned hereby appoints Purchaser as my
attorney-in-fact with respect to any amendment or exercise of any rights under the Agreement. 

Date:                      

 

			
		    	  

		    	Print Name of Purchaser’s Spouse
		
		    	  

		    	Signature of Purchaser’s Spouse
		
	Address:	    	  

		
		    	  

		
		    	  

  
 15 

 EXHIBIT 3 

COPY OF PURCHASER’S CHECKEX-10.3

 EXHIBIT 10.3 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

As Adopted on November 30, 2018 

1.    PURPOSE. The purpose of this Plan is to provide incentives to attract, retain and
motivate eligible persons whose present and potential contributions are important to the success of the Company, its Parent and Subsidiaries by offering eligible persons an opportunity to participate in the Company’s future performance through
the grant of Awards covering Shares. Capitalized terms not defined in the text are defined in Section 14 hereof. Although this Plan is intended to be a written compensatory benefit plan within the meaning of Rule 701, grants may be made
pursuant to this Plan that do not qualify for exemption under Rule 701 or Section 25102(o). Any requirement of this Plan that is required in law only because of Section 25102(o) need not apply if the Committee so provides. 

2.    SHARES SUBJECT TO THE PLAN. 

2.1    Number of Shares Available. Subject to Sections 2.2 and 11 hereof, the total number
of Shares reserved and available for grant and issuance pursuant to this Plan will be 22,339,671 Shares plus (a) any authorized shares not issued or subject to outstanding grants under the Company’s 2008 Equity Incentive Plan (the
“Prior Plan”) on the Effective Date (as defined in Section 13.1 hereof), which is an amount equal to 2,971,268; and (b) any shares subject to outstanding stock options that are cancelled without being exercised or
expire under the 2008 Equity Incentive Plan. Subject to Sections 2.2 and 11 hereof, (A) in the event that Shares previously issued under the Plan are reacquired by the Company pursuant to a forfeiture provision, right of first refusal, or
repurchase by the Company, such Shares shall be added to the number of Shares then available for issuance under the Plan; (B) in the event that Shares that otherwise would have been issuable under the Plan are withheld by the Company in payment
of the Purchase Price, Exercise Price or withholding obligations, such Shares shall remain available for issuance under the Plan; and (C) in the event that an outstanding Option, Restricted Stock Unit or SAR for any reason expires or is
cancelled, forfeited or terminated, the Shares allocable to the unexercised or unsettled portion of such Option, Restricted Stock Unit or SAR, as applicable, shall remain available for issuance under the Plan. To the extent an Award is settled in
cash, the cash settlement shall not reduce the number of Shares remaining available for issuance under the Plan. At all times the Company will reserve and keep available a sufficient number of Shares as will be required to satisfy the requirements
of all Awards granted and outstanding under this Plan. In no event shall the total number of Shares issued (counting each reissuance of a Share that was previously issued and then reacquired by the Company pursuant to a forfeiture provision, right
of first refusal, or repurchase by the Company as a separate issuance) under the Plan upon exercise of ISOs (as defined in Section 4 hereof) exceed 44,679,342) Shares (adjusted in proportion to any adjustments under Section 2.2 hereof)
over the term of the Plan. 
 2.2    Adjustment of Shares. In the event that the
Company’s Common Stock is changed by a stock dividend, recapitalization, stock split, reverse stock split, subdivision, combination, reclassification or other change in the capital structure of the Company affecting Shares without
consideration, then in order to prevent diminution or enlargement of the benefits or potential benefits intended to be made available under the Plan (a) the number and class of Shares reserved for issuance under this Plan, (b) the Exercise
Prices of and number and class of Shares subject to outstanding Options and SARs, and (c) the Purchase Prices of and/or number and class of Shares subject to other outstanding Awards will (to the extent appropriate) be proportionately adjusted,
subject to any required action by the Board or the stockholders of the Company and compliance with applicable securities or other laws; 

  
 1 

 
provided, however, that fractions of a Share will not be issued but will either be paid in cash at the Fair Market Value of such fraction of a Share or will be rounded
down to the nearest whole Share, as determined by the Committee. 
 3.    PLAN FOR BENEFIT OF SERVICE
PROVIDERS. 
 3.1    Eligibility. The Committee will have the authority to select
persons to receive Awards. ISOs may be granted only to employees (including officers and directors who are also employees) of the Company or of a Parent or Subsidiary of the Company. NQSOs (as defined in Section 4 hereof) and all other types of
Awards may be granted to employees, officers, directors and consultants of the Company or any Parent or Subsidiary of the Company; provided such consultants render bona fide services not in connection with the offer and sale of
securities in a capital-raising transaction when Rule 701 is to apply to the Award granted for such services. A person may be granted more than one Award under this Plan. 

3.2    No Obligation to Employ. Nothing in this Plan or any Award granted under this Plan will
confer or be deemed to confer on any Participant any right to continue in the employ of, or to continue any other relationship with, the Company or any Subsidiary or Parent of the Company or limit in any way the right of the Company or any
Subsidiary or Parent of the Company to terminate Participant’s employment or other relationship at any time, with or without Cause. 

4.    OPTIONS. The Committee may grant Options to eligible persons described in Section 3
hereof and will determine whether such Options will be Incentive Stock Options within the meaning of the Code (“ISOs”) or Nonqualified Stock Options (“NQSOs”), the number of Shares subject to the
Option, the Exercise Price of the Option, the period during which the Option may be exercised, and all other terms and conditions of the Option, subject to the following. 

4.1    Form of Option Grant. Each Option granted under this Plan will be evidenced by an Award
Agreement which will expressly identify the Option as an ISO or an NQSO (“Stock Option Agreement”), and will be in such form and contain such provisions (which need not be the same for each Participant) as the Committee may
from time to time approve, and which will comply with and be subject to the terms and conditions of this Plan. 

4.2    Date of Grant. The date of grant of an Option will be the date on which the Committee
makes the determination to grant such Option, unless a later date is otherwise specified by the Committee. The Stock Option Agreement and a copy of this Plan will be delivered to the Participant within a reasonable time after the granting of the
Option. 
 4.3    Exercise Period. Options may be exercisable within the time or upon the
events determined by the Committee in the Award Agreement and may be awarded as immediately exercisable but subject to repurchase pursuant to Section 10 hereof or may be exercisable within the times or upon the events determined by the
Committee as set forth in the Stock Option Agreement governing such Option; provided, however, that (a) no Option will be exercisable after the expiration of ten (10) years from the date the Option is granted;
and (b) no ISO granted to a person who directly or by attribution owns more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any Subsidiary or Parent of the Company (“Ten Percent
Stockholder”) will be exercisable after the expiration of five (5) years from the date the ISO is granted; but in no event shall an Option granted to an employee who is a non-exempt employee
for purposes of overtime pay under the U.S. Fair Labor Standards Act of 1938 be exercisable earlier than six (6) months after its date of grant. The Committee also may provide for Options to become exercisable at one time or from time to time,
periodically or otherwise, in such number of Shares or percentage of Shares as the Committee determines. 

  
 2 

 4.4    Exercise Price. The Exercise Price of
an Option will be determined by the Committee when the Option is granted and shall not be less than the Fair Market Value per Share on the date of grant unless expressly determined in writing by the Committee; provided that the
Exercise Price of an ISO granted to a Ten Percent Stockholder will not be less than one hundred ten percent (110%) of the Fair Market Value of the Shares on the date of grant. Payment for the Shares purchased must be made in accordance with
Section 8 hereof. 
 4.5    Method of Exercise. Options may be exercised only by
delivery to the Company of a stock option exercise agreement (accepted via written, electronic or other means) (the “Exercise Agreement”) in a form approved by the Committee (which need not be the same for each Participant).
The Exercise Agreement will state (a) the number of Shares being purchased, (b) the restrictions imposed on the Shares purchased under such Exercise Agreement, if any, and (c) such representations and agreements regarding
Participant’s investment intent and access to information and other matters, if any, as may be required or desirable by the Company to comply with applicable securities or other laws. Each Participant’s Exercise Agreement may be modified
by (i) agreement of Participant and the Company or (ii) substitution by the Company, upon becoming a public company, in order to add the payment terms set forth in Section 8.1 that apply to a public company and such other terms as
shall be necessary or advisable in order to exercise a public company option. Upon exercise of an Option, Participant shall execute and deliver to the Company the Exercise Agreement then in effect, together with payment in full of the Exercise Price
for the number of Shares being purchased and satisfaction of any applicable Tax-Related Obligations (as defined in Section 8.2 hereof). No adjustment will be made for a dividend or other right for which
the record date is prior to the date the Shares are issued, except as provided in Section 2.2 of the Plan. Exercising an Option in any manner will decrease the number of Shares thereafter available, both for purposes of the Plan and for sale
under the Option, by the number of Shares as to which the Option is exercised. 

4.6    Termination. Subject to earlier termination pursuant to Sections 11 and 13 hereof
and subject to any longer exercise periods set forth in the Stock Option Agreement, exercise of an Option will always be subject to the following terms and conditions. 

4.6.1    Other than Death or Disability or for Cause. If the Participant is Terminated for any reason other than
death, Disability or for Cause, then the Participant may exercise such Participant’s Options only to the extent that such Options are exercisable as to Vested Shares upon the Termination Date, except as otherwise determined by the Committee or
required by applicable law. Such Options must be exercised by the Participant, if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within three (3) months after
the Termination Date (or within such shorter time period, not less than thirty (30) days, or within such longer time period after the Termination Date as may be determined by the Committee or required by applicable law, with any exercise beyond
three (3) months after the date Participant ceases to be an employee deemed to be an NQSO) but, in any event, no later than the expiration date of the Options. 

4.6.2    Death or Disability. If the Participant is Terminated because of Participant’s death or Disability
(or the Participant dies within three (3) months after a Termination other than for Cause), then Participant’s Options may be exercised only to the extent that such Options are exercisable as to Vested Shares on the Termination Date,
except as otherwise determined by the Committee or required by applicable law. Such Options must be exercised by Participant (or Participant’s legal representative or authorized assignee), if at all, as to all or some of the Vested Shares
calculated as of the Termination Date or such other date determined by the Committee, within twelve (12) months after the Termination Date (or within such shorter time period, not less than six (6) months, or within such longer time
period, after the Termination Date as may be determined by the Committee or required by 

  
 3 

 
applicable law, with any exercise beyond (a) three (3) months after the date Participant ceases to be an employee when the Termination is for any reason other than the
Participant’s death or disability, within the meaning of Section 22(e)(3) of the Code, or (b) twelve (12) months after the date Participant ceases to be an employee when the Termination is for Participant’s disability,
within the meaning of Section 22(e)(3) of the Code, deemed to be an NQSO) but in any event no later than the expiration date of the Options. 

4.6.3    For Cause. If the Participant is Terminated for Cause, the Participant may exercise such
Participant’s Options, but not to an extent greater than such Options are exercisable as to Vested Shares upon the Termination Date and Participant’s Options shall expire on such Participant’s Termination Date, or at such later time
and on such conditions as are determined by the Committee. 
 4.7    Limitations on
Exercise. The Committee may specify a reasonable minimum number of Shares that may be purchased on any exercise of an Option, provided that such minimum number will not prevent Participant from exercising the Option for
the full number of Shares for which it is then exercisable. 
 4.8    Limitations on ISOs.
The aggregate Fair Market Value (determined as of the date of grant) of Shares with respect to which ISOs are exercisable for the first time by a Participant during any calendar year (under this Plan or under any other incentive stock option plan of
the Company or any Parent or Subsidiary of the Company) will not exceed One Hundred Thousand Dollars ($100,000). If the Fair Market Value of Shares on the date of grant with respect to which ISOs are exercisable for the first time by a Participant
during any calendar year exceeds One Hundred Thousand Dollars ($100,000), then the Options for the first One Hundred Thousand Dollars ($100,000) worth of Shares to become exercisable in such calendar year will be ISOs and the Options for the amount
in excess of One Hundred Thousand Dollars ($100,000) that become exercisable in that calendar year will be NQSOs. In the event that the Code or the regulations promulgated thereunder are amended after the Effective Date (as defined in
Section 13.1 hereof) to provide for a different limit on the Fair Market Value of Shares permitted to be subject to ISOs, then such different limit will be automatically incorporated herein and will apply to any Options granted after the
effective date of such amendment. 
 4.9    Modification, Extension or Renewal. The
Committee may modify, extend or renew outstanding Options and authorize the grant of new Options in substitution therefor, provided that any such action may not, without the written consent of a Participant, impair any of such
Participant’s rights under any Option previously granted, unless for the purpose of complying with applicable laws and regulations. Any outstanding ISO that is modified, extended, renewed or otherwise altered will be treated in accordance with
Section 424(h) of the Code. Subject to Section 4.10 hereof, the Committee may reduce the Exercise Price of outstanding Options without the consent of Participants by a written notice to them; provided, however,
that the Exercise Price may not be reduced below the minimum Exercise Price that would be permitted under Section 4.4 hereof for Options granted on the date the action is taken to reduce the Exercise Price. 

4.10    No Disqualification. Notwithstanding any other provision in this Plan, no term of this
Plan relating to ISOs will be interpreted, amended or altered, nor will any discretion or authority granted under this Plan be exercised, so as to disqualify this Plan under Section 422 of the Code or, without the consent of the Participant, to
disqualify any Participant’s ISO under Section 422 of the Code. 
 5.    RESTRICTED
STOCK. A Restricted Stock Award is an offer by the Company to sell to an eligible person Shares that are subject to certain specified restrictions. The Committee will determine to whom an offer will be made, the number of Shares the
person may purchase, the Purchase Price, the restrictions to which the Shares will be subject, and all other terms and conditions of the Restricted Stock Award, subject to the following terms and conditions. 

  
 4 

 5.1    Form of Restricted Stock Award. All
purchases under a Restricted Stock Award made pursuant to this Plan will be evidenced by an Award Agreement (“Restricted Stock Purchase Agreement”) that will be in such form (which need not be the same for each Participant)
as the Committee will from time to time approve, and will comply with and be subject to the terms and conditions of this Plan. The Restricted Stock Award will be accepted by the Participant’s execution and delivery of the Restricted Stock
Purchase Agreement (accepted via written, electronic or other means) and full payment for the Shares to the Company within thirty (30) days from the date the Restricted Stock Purchase Agreement is delivered to the person. If such person does
not execute and deliver the Restricted Stock Purchase Agreement along with full payment for the Shares to the Company within such thirty (30) days, then the offer will terminate, unless otherwise determined by the Committee. 

5.2    Purchase Price. The Purchase Price of Shares sold pursuant to a Restricted Stock Award
will be determined by the Committee on the date the Restricted Stock Award is granted. Payment of the Purchase Price must be made in accordance with Section 8 hereof. 

5.3    Dividends and Other Distributions. Participants holding Restricted Stock Awards will be
entitled to receive all dividends and other distributions paid with respect to such Shares, unless the Committee provides otherwise at the time the Award is granted. If any such dividends or distributions are paid in Shares, the Shares will be
subject to the same restrictions on transferability and forfeitability as the Restricted Stock Awards with respect to which they were paid. 

5.4    Restrictions. Restricted Stock Awards may be subject to the restrictions set forth in
Sections 9 and 10 hereof or, with respect to a Restricted Stock Award to which Section 25102(o) is to apply, such other restrictions not inconsistent with Section 25102(o). 

6.    RESTRICTED STOCK UNITS. 

6.1    Awards of Restricted Stock Units. A Restricted Stock Unit
(“RSU”) is an Award covering a number of Shares that may be settled in cash, by issuance of those Shares at a date in the future, or by a combination of cash and Shares. No Purchase Price shall apply to an RSU settled in
Shares. All grants of RSUs will be evidenced by an Award Agreement (the “RSU Agreement”) that will be in such form (which need not be the same for each Participant) as the Committee will from time to time approve, and will
comply with and be subject to the terms and conditions of this Plan. No RSU will have a term longer than ten (10) years from the date the RSU is granted. 

6.2    Form and Timing of Settlement. To the extent permissible under applicable law, the
Committee may permit a Participant to defer payment (including settlement) under an RSU to a date or dates after the RSU has vested, provided that the terms of the RSU and any deferral satisfy the requirements of Section 409A of
the Code (or any successor) and any regulations or rulings promulgated thereunder, to the extent the Participant is subject to Section 409A of the Code. Payment may be made in the form of cash or whole Shares or a combination thereof, all as
the Committee determines. 
 6.3    Dividend Equivalent Payments. The Board may permit
Participants holding RSUs to receive dividend equivalent payments on outstanding RSUs if and when dividends are paid to stockholders on Shares. In the discretion of the Board, such dividend equivalent payments may be paid in cash or Shares and
they may either be paid at the same time as dividend payments are made to stockholders or delayed until Shares are issued pursuant to the RSU grants and may be subject to the same vesting or performance requirements as the RSUs. If the Board
permits dividend equivalent payments to be made on RSUs, the terms and conditions for such dividend equivalent payments will be set forth in the RSU Agreement. 

  
 5 

 7.    STOCK APPRECIATION RIGHTS. 

7.1    Awards of SARs. Stock Appreciation Rights (“SARs”) may be
settled in cash or Shares (which may consist of Restricted Stock or RSUs) or a combination thereof, having a value equal to the value determined by multiplying the difference between the Fair Market Value on the date of exercise over the Exercise
Price and the number of Shares with respect to which the SAR is being exercised. All grants of SARs made pursuant to this Plan will be evidenced by an Award Agreement (the “SAR Agreement”) that will be in such form (which
need not be the same for each Participant) as the Committee will from time to time approve, and will comply with and be subject to the terms and conditions of this Plan. 

7.2    Exercise Period and Expiration Date. A SAR will be exercisable within the times or upon
the occurrence of events determined by the Committee and set forth in the SAR Agreement. The SAR Agreement shall set forth the expiration date; provided that no SAR will be exercisable after the expiration of ten (10) years from
the date the SAR is granted. 
 7.3    Exercise Price. The Committee will determine the
Exercise Price of the SAR when the SAR is granted, which may not be less than the Fair Market Value on the date of grant. 

7.4    Termination. Subject to earlier termination pursuant to Sections 11 and 13 hereof
and subject to any longer exercise periods set forth in the SAR Agreement, exercise of SARs will always be subject to the following terms and conditions. 

7.4.1    Other than Death or Disability or for Cause. If the Participant is Terminated for any reason other than
death, Disability or for Cause, then the Participant may exercise such Participant’s SARs only to the extent that such SARs are exercisable as to Vested Shares upon the Termination Date or as otherwise determined by the Committee or as required
by applicable law. SARs must be exercised by the Participant, if at all, as to all or some of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within three (3) months after the Termination
Date (or within such shorter time period, not less than thirty (30) days, or within such longer time period after the Termination Date as may be determined by the Committee or as required by applicable law), but in any event no later than the
expiration date of the SARs. 
 7.4.2    Death or Disability. If the Participant is Terminated because of
Participant’s death or Disability (or the Participant dies within three (3) months after a Termination other than for Cause), then Participant’s SARs may be exercised only to the extent that such SARs are exercisable as to Vested
Shares on the Termination Date or as otherwise determined by the Committee or as required by applicable law. Such SARs must be exercised by Participant (or Participant’s legal representative or authorized assignee), if at all, as to all or some
of the Vested Shares calculated as of the Termination Date or such other date determined by the Committee, within twelve (12) months after the Termination Date (or within such shorter time period, not less than six (6) months, or within
such longer time period after the Termination Date as may be determined by the Committee or as required by applicable law), but in any event no later than the expiration date of the SARs. 

7.4.3    For Cause. If the Participant is Terminated for Cause, the Participant may exercise such
Participant’s SARs, but not to an extent greater than such SARs are exercisable as to Vested Shares upon the Termination Date and Participant’s SARs shall expire on such Participant’s Termination Date, or at such later time and on
such conditions as are determined by the Committee. 

  
 6 

 8.    PAYMENT FOR PURCHASES AND EXERCISES. 

8.1    Payment in General. Payment for Shares acquired pursuant to this Plan may be made in
cash equivalents (including by check or Automated Clearing House (“ACH”) transfer) or, where expressly approved for the Participant by the Committee and subject to compliance with applicable law: 

(a)    by cancellation of indebtedness of the Company owed to the Participant; 

(b) by surrender of shares of the Company that are clear of all liens, claims, encumbrances or security interests and: (i) for which the
Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully paid with respect to such shares)
or (ii) that were obtained by Participant in the public market; 
 (c)    by tender of a full recourse promissory
note having such terms as may be approved by the Committee and bearing interest at a rate sufficient to avoid (i) imputation of income under Sections 483 and 1274 of the Code and (ii) unfavorable accounting treatment as determined by
the Committee; provided, however, that Participants who are not employees or directors of the Company will not be entitled to purchase Shares with a promissory note unless the note is adequately secured by collateral
other than the Shares; provided, further, that the portion of the Exercise Price or Purchase Price, as the case may be, equal to the par value (if any) of the Shares must be paid in cash or other legal consideration
permitted by the laws under which the Company is then incorporated or organized; 
 (d)    by waiver of compensation
due or accrued to the Participant from the Company for services rendered; 
 (e)    by participating in a formal
cashless exercise program implemented by the Committee in connection with the Plan; 
 (f)    provided that a public
market for the Company’s common stock exists, by exercising through a “same day sale” commitment from the Participant and a broker-dealer whereby the Participant irrevocably elects to exercise the Award and to sell a portion of the
Shares so purchased sufficient to pay the total Exercise Price or Purchase Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price or Purchase Price directly to the Company; or 

(g)    by any combination of the foregoing or any other method of payment approved by the Committee. 

For avoidance of uncertainty: ACH transfers that have been received by the Company into its bank account designated for receipt of such transfers under this
Section 8.1 shall be deemed to have been received for all purposes under this Plan as of the date on which such transfers were initiated from the transferor’s account and made irrevocable by the transferor. 

8.2    Withholding Taxes. 

8.2.1    Withholding Generally. Whenever Shares are to be issued in satisfaction of Awards granted under this Plan,
the Company may require the Participant to remit to the Company an amount sufficient to satisfy the maximum tax withholding requirements as to income tax, social insurance, payroll tax, fringe benefits tax, payment on account and other tax-related obligations (collectively, “Tax-Related Obligations”) prior to the delivery of any written or electronic certificate or certificates for
such Shares. Whenever, under this Plan, payments in satisfaction of Awards are to be made in cash by the Company, such payment will be net of an amount sufficient to satisfy applicable tax withholding requirements. 

  
 7 

 8.2.2    Stock Withholding. When, under applicable tax laws, a
Participant incurs tax liability in connection with the exercise or vesting of any Award that is subject to tax withholding and the Participant is obligated to pay the Company the amount required to be withheld, the Committee may in its sole
discretion allow the Participant to satisfy up to the maximum Tax-Related Obligations in the employee’s applicable jurisdictions by electing to have the Company withhold from the Shares to be issued up to
the number of Shares having a Fair Market Value on the date that the amount of tax to be withheld is to be determined that is not more than the maximum Tax-Related Obligations in the employee’s applicable
jurisdictions; or to arrange a mandatory “sell to cover” on Participant’s behalf (without further authorization) but in no event will the Company withhold Shares or “sell to cover” if such withholding would result in adverse
accounting or compliance consequences to the Company. The maximum Tax-Related Obligations are based on the applicable rates of the relevant tax authorities (for example, federal, state and local), including
the employee’s share of payroll or similar taxes, as provided in the tax law, regulations or the authority’s administrative practices, not to exceed the highest statutory rate in that jurisdiction. Any elections to have Shares withheld or
sold for this purpose will be made in accordance with the requirements established by the Committee for such elections and be in writing in a form acceptable to the Committee. 

8.2.3    Elections Under Section 83(i) of the Code. A Participant will not make an election
under Section 83(i) of the Code if the Company determines that the Participant is then ineligible to make such an election under applicable law or without the Company’s prior written consent (which will not be unreasonably withheld or
delayed, but may be conditioned upon the Participant’s entry into additional commitments as determined by the Company). 

9.    RESTRICTIONS ON AWARDS. 

9.1    Transferability. Except as permitted by the Committee, Awards granted under this Plan,
and any interest therein, will not be transferable or assignable by Participant, other than by will or by the laws of descent and distribution, and, with respect to NQSOs for Participants in the U.S., by instrument to an inter vivos or testamentary
trust in which the NQSOs are to be passed to beneficiaries upon the death of the trustor (settlor), or by gift to “family member” as that term is defined in Rule 701, and may not be made subject to execution, attachment or similar process.
For the avoidance of doubt, the prohibition against assignment and transfer applies to Awards and any Shares underlying the Awards prior to the issuance of the Shares, and pursuant to the foregoing sentence shall be understood to include, without
limitation, a prohibition against any pledge, hypothecation, or other transfer, including any short position, any “put equivalent position” or any “call equivalent position” (in each case, as defined in Rule 16a-1 promulgated under the Exchange Act). Unless an Award is transferred pursuant to the terms of this Section, during the lifetime of the Participant an Award will be exercisable only by the Participant or
Participant’s legal representative and any elections with respect to an Award may be made only by the Participant or Participant’s legal representative. The terms of an Award shall be binding upon the executor, administrator, successors
and assigns of the Participant who is a party thereto. 
 9.2    Securities Law and Other Regulatory
Compliance. Although this Plan is intended to be a written compensatory benefit plan within the meaning of Rule 701 promulgated under the Securities Act, Awards may be made pursuant to this Plan that do not qualify for exemption
under Rule 701 or Section 25102(o). Any requirement of this Plan which is required in law only because of Section 25102(o) need not apply with respect to a particular Award to which Section 25102(o) will not apply. An Award will not
be effective unless such Award is in compliance with all applicable U.S. and non-U.S. 

  
 8 

 
federal, state and local securities laws, rules and regulations of any governmental body, and the requirements of any stock exchange or automated quotation system upon which the Company’s
equity securities may then be listed or quoted, as they are in effect on the date of grant of the Award and also on the date of exercise, settlement or other issuance. Notwithstanding any other provision in this Plan, the Company will have no
obligation to issue Shares or deliver certificates for Shares under this Plan prior to (a) obtaining any approvals from governmental agencies that the Company determines are necessary or advisable, and/or (b) compliance with any exemption,
completion of any registration or other qualification of such Shares under any U.S. and non-U.S. federal, state or local law or ruling of any governmental body that the Company determines to be necessary or
advisable. The Company will be under no obligation to register the Shares with the SEC or to effect compliance with the exemption, registration, qualification or listing requirements of any securities laws, stock exchange or automated quotation
system, and the Company will have no liability for any inability or failure to do so. 
 9.3    Exchange
and Buyout of Awards. The Committee may, at any time or from time to time, authorize the Company, with the consent of the respective Participants, to issue new Awards in exchange for the surrender and cancellation of any or all
outstanding Awards. Without prior stockholder approval the Committee may reprice Options or SARs (and where such repricing is a reduction in the Exercise Price of outstanding Options or SARs, the consent of the affected Participants is not required
provided written notice is provided to them). The Committee may at any time buy from a Participant an Award previously granted with payment in cash, Shares (including Restricted Stock) or other consideration, based on such terms and conditions as
the Committee and the Participant may agree. 
 10.    RESTRICTIONS ON SHARES. 

10.1    Privileges of Stock Ownership. No Participant will have any of the rights of a
stockholder with respect to any Shares until such Shares are issued to the Participant. After Shares are issued to the Participant, the Participant will be a stockholder and have all the rights of a stockholder with respect to such Shares, including
the right to vote and receive all dividends or other distributions made or paid with respect to such Shares; provided, that if such Shares are Restricted Stock, then any new, additional or different securities the Participant may
become entitled to receive with respect to such Shares by virtue of a stock dividend, stock split or any other change in the corporate or capital structure of the Company will be subject to the same restrictions as the Restricted Stock. The
Participant will have no right to retain such stock dividends or stock distributions with respect to Unvested Shares that are repurchased as described in this Section 10. 

10.2    Rights of First Refusal and Repurchase. At the discretion of the Committee, the
Company may reserve to itself and/or its assignee(s) in the Award Agreement (a) a right of first refusal to purchase all Shares that a Participant (or a subsequent transferee) may propose to transfer to a third party, provided
that such right of first refusal terminates upon (i) subject to any applicable market standoff restrictions, the effective date of the first sale of common stock of the Company to the general public pursuant to a registration statement
filed with and declared effective by the SEC under the Securities Act (other than a registration statement relating solely to the issuance of common stock pursuant to a business combination or an employee incentive or benefit plan); (ii) any
transfer or conversion of Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect Parent
thereof is registered under the Exchange Act; or (iii) any transfer or conversion of Shares made pursuant to a statutory conversion of the Company into another form of legal entity if the common equity (or comparable equity security) of
entity resulting from such conversion is registered under the Exchange Act; and (b) a right to repurchase Unvested Shares held by a Participant for cash and/or cancellation of purchase money indebtedness owed to the Company by the Participant
following such Participant’s Termination at any time. 

  
 9 

 10.3    Agreement to Vote Shares. At the
discretion of the Committee, the Company may require that, as a condition to the receipt of the Shares upon issuance of an Award, exercise of an Option or SAR or settlement of an RSU, the Participant and any transferee of the Shares agree to vote
such Shares pursuant to the terms of a Voting Agreement by and between the Company and certain of its stockholders. 

10.4    Escrow; Pledge of Shares. To enforce any restrictions on a Participant’s Shares,
the Committee may require the Participant to deposit all written or electronic certificates representing Shares, together with stock powers or other instruments of transfer approved by the Committee, appropriately endorsed in blank, with the Company
or an agent designated by the Company to hold in escrow until such restrictions have lapsed or terminated. The Committee may cause a legend or legends referencing such restrictions to be placed on the written or electronic certificate. Any
Participant who is permitted to execute a promissory note as partial or full consideration for the purchase of Shares under this Plan will be required to pledge and deposit with the Company all or part of the Shares so purchased as collateral to
secure the payment of Participant’s obligation to the Company under the promissory note; provided, however, that the Committee may require or accept other or additional forms of collateral to secure the payment of
such obligation and, in any event, the Company will have full recourse against the Participant under the promissory note notwithstanding any pledge of the Participant’s Shares or other collateral. In connection with any pledge of the Shares,
Participant will be required to execute and deliver a written pledge agreement in such form as the Committee will from time to time approve. The Shares purchased with the promissory note may be released from the pledge on a pro rata basis as the
promissory note is paid. 
 10.5    Securities Law Restrictions. All written or electronic
certificates for Shares or other securities delivered under this Plan will be subject to such stock transfer orders, legends and other restrictions as the Committee may deem necessary or advisable, including restrictions under any applicable U.S.
and non-U.S. federal, state or local securities law, or any rules, regulations and other requirements of the SEC or any stock exchange or automated quotation system upon which the Company’s equity
securities may be listed or quoted. 
 11.    CORPORATE TRANSACTIONS. 

11.1    Acquisitions or Other Combinations. In the event that the Company is subject to an
Acquisition or Other Combination, outstanding Awards acquired under the Plan shall be subject to the agreement evidencing the Acquisition or Other Combination, which need not treat all outstanding Awards in an identical manner. Such agreement,
without the Participant’s consent, shall provide for one or more of the following with respect to all outstanding Awards as of the effective date of such Acquisition or Other Combination: 

(a)    The continuation of such outstanding Awards by the Company (if the Company is the successor entity). 

(b)    The assumption of outstanding Awards by the successor or acquiring entity (if any) in such Acquisition or Other
Combination (or by any of its Parents, if any), which assumption, will be binding on all Participants; provided that the exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or
upon the settlement of any award that is subject to Section 409A of the Code, will be adjusted appropriately pursuant to Section 424(a) and Section 409A of the Code. For the purposes of this Section 11, an Award will be
considered assumed if, following the Acquisition or Other Combination, the Award confers the right to purchase or receive, for each Share subject to the Award immediately prior to the Acquisition or Other Combination, the consideration (whether
stock, cash, or other securities or property) received in the 

  
 10 

 
Acquisition or Other Combination by holders of Shares for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of
consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the Acquisition or Other Combination is not solely common stock of the successor corporation or its Parent, the
Committee may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of an Option or Stock Appreciation Right or upon the settlement of an RSU, for each Share subject to such Award, to be
solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the Acquisition or Other Combination. 

(c)    The substitution by the successor or acquiring entity in such Acquisition or Other Combination (or by any of its
Parents, if any) of equivalent awards with substantially the same terms for such outstanding Awards (except that the exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or any
award that is subject to Section 409A of the Code, will be adjusted appropriately pursuant to Section 424(a) and Section 409A of the Code). 

(d)    The full or partial exercisability or vesting and accelerated expiration of outstanding Awards. 

(e)    The settlement of the Fair Market Value of such outstanding Award (whether or not then vested or exercisable) in
cash, cash equivalents, or securities of the successor entity (or its Parent, if any), followed by the cancellation of such Awards; provided however, that such Award may be cancelled without consideration if such Award has no value, as determined by
the Committee, in its discretion. Subject to Section 409A of the Code, such payment may be made in installments and may be deferred until the date or dates when the Award would have become exercisable or vested. Such payment may be subject to
vesting based on the Participant’s continued service, provided that without the Participant’s consent, the vesting schedule shall not be less favorable to the Participant than the schedule under which the Award would have become vested or
exercisable. For purposes of this Section 11.1(e), the Fair Market Value of any security shall be determined without regard to any vesting conditions that may apply to such security. 

(f)    The termination in its entirety of any outstanding Award, without payment of any consideration, that is not
exercised in accordance with its terms upon or prior to consummation of the transactions contemplated by the Acquisition or Other Combination within a time specified by the Committee, in its discretion, for such exercise, whether or not such Award
is then fully exercisable. 
 Immediately following an Acquisition or Other Combination, outstanding Awards shall terminate and cease to be
outstanding, except to the extent such Awards, have been continued, assumed or substituted, as described in Sections 11.1(a), (b) and/or (c). 

11.2    Substitution or Assumption of Awards by the Company. The Company, from time to time,
also may substitute or assume outstanding awards granted by another entity, whether in connection with an acquisition of such other entity or otherwise, by either (a) granting an Award under this Plan in substitution of such other entity’s
award or (b) assuming and/or converting such award as if it had been granted under this Plan if the terms of such assumed award could be applied to an Award granted under this Plan. Such substitution or assumption will be permissible if the
holder of the substituted or assumed award would have been eligible to be granted an Award under this Plan if the other entity had applied the rules of this Plan to such grant. In the event the Company assumes an award granted by another entity, the
terms and conditions of such award will remain unchanged (except that the 

  
 11 

 
exercise price and the number and nature of shares issuable upon exercise of any such option or stock appreciation right, or any award that is subject to Section 409A of the Code, will be
adjusted appropriately pursuant to Section 424(a) and Section 409A of the Code). In the event the Company elects to grant a new Option or SAR in substitution for and rather than assuming an existing option or stock appreciation right, such
new Option or SAR may be granted with a similarly adjusted Exercise Price and number of underlying Shares and such other changes approved by the Committee, subject to the consent of the Participant. 

12.    ADMINISTRATION. 

12.1    Committee Authority. This Plan will be administered by the Committee. Subject to the
general purposes, terms and conditions of this Plan, and to the direction of the Board, the Committee will have full power to implement and carry out this Plan. Without limitation, the Committee will have the authority to: 

(a)    construe and interpret this Plan, any Award Agreement and any other agreement or document executed pursuant to
this Plan; 
 (b)    prescribe, amend, expand, modify and rescind or terminate rules and regulations relating to this
Plan; 
 (c)    approve persons to receive Awards; 

(d)    determine the form and terms of Awards; 

(e)    determine the number of Shares or other consideration subject to Awards granted under this Plan; 

(f)    determine the Fair Market Value in good faith and interpret the applicable provisions of this Plan and the
definition of Fair Market Value in connection with circumstances that impact the Fair Market Value, if necessary; 

(g)    determine whether Awards will be granted singly, in combination with, in tandem with, in replacement of, or as
alternatives to, other Awards under this Plan or awards under any other incentive or compensation plan of the Company or any Parent or Subsidiary of the Company; 

(h)    grant waivers of any conditions of this Plan or any Award; 

(i)    determine the terms of vesting, exercisability, settlement and payment of Awards to be granted pursuant to this
Plan; 
 (j)    correct any defect, supply any omission, or reconcile any inconsistency in this Plan, any Award, any
Award Agreement or any Exercise Agreement; 
 (k)    determine whether an Award has vested or become exercisable; 

(l)    extend the vesting period beyond a Participant’s Termination Date; 

(m)    adopt rules and/or procedures (including the adoption of any subplan under this Plan) relating to the operation
and administration of the Plan to accommodate or facilitate requirements of local law and procedures outside of the United States; 

  
 12 

 (n)    delegate any of the foregoing to a subcommittee consisting of
one or more directors or executive officers pursuant to a specific delegation as may otherwise be permitted by applicable law; 

(o)    change the vesting schedule of Awards under the Plan prospectively in the event that the Participant’s
service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of Awards; and 

(p)    make all other determinations necessary or advisable in connection with the administration of this Plan. 

12.2    Standalone, Tandem and Substitute Awards. Awards granted under the Plan may, in the
sole discretion of the Committee, be granted either alone or in addition to, in tandem with, or in substitution for, any other Award granted under the Plan. Awards granted in addition to or in tandem with other Awards may be granted either at the
same time as or at a different time from the grant of such other Awards. 
 12.3    Committee Composition
and Discretion. The Board may delegate full administrative authority over the Plan and Awards to a Committee consisting of at least one member of the Board (or such greater number as may then be required by applicable law).
Unless in contravention of any express terms of this Plan or Award, any determination made by the Committee with respect to any Award will be made in its sole discretion either (a) at the time of grant of the Award, or (b) subject to
Section 4.9 hereof, at any later time. Any such determination will be final and binding on the Company and on all persons having an interest in any Award under this Plan. To the extent permitted by applicable law, the Committee may delegate to
one or more directors or officers of the Company the authority to grant an Award under this Plan. 

12.4    Nonexclusivity of the Plan. Neither the adoption of this Plan by the Board, the
submission of this Plan to the stockholders of the Company for approval, nor any provision of this Plan will be construed as creating any limitations on the power of the Board to adopt such additional compensation arrangements as it may deem
desirable, including, without limitation, the granting of stock options and other equity awards otherwise than under this Plan, and such arrangements may be either generally applicable or applicable only in specific cases. 

12.5    Governing Law. This Plan and all agreements hereunder shall be governed by and
construed in accordance with the laws of the State of Washington, without giving effect to that body of laws pertaining to conflict of laws. 

13.    EFFECTIVENESS, AMENDMENT AND TERMINATION OF THE PLAN. 

13.1    Adoption and Stockholder Approval. This Plan will become effective on the date that it
is adopted by the Board (the “Effective Date”). This Plan will be approved by the stockholders of the Company (excluding Shares issued pursuant to this Plan), consistent with applicable laws, within twelve (12) months
before or after the Effective Date. Upon the Effective Date, the Committee may grant Awards pursuant to this Plan; provided, however, that: (a) no Option or SAR may be exercised prior to initial stockholder approval
of this Plan; (b) no Option or SAR granted pursuant to an increase in the number of Shares approved by the Board shall be exercised prior to the time such increase has been approved by the stockholders of the Company; (c) in the event that
initial stockholder approval is not obtained within the time period provided herein, all Awards for which only the exemption from California’s securities qualification requirements provided by Section 25102(o) can apply shall be canceled,
any Shares issued pursuant to any such Award shall be canceled and any purchase of such 

  
 13 

 
Shares issued hereunder shall be rescinded; and (d) Awards (to which only the exemption from California’s securities qualification requirements provided by Section 25102(o) can
apply) granted pursuant to an increase in the number of Shares approved by the Board which increase is not approved by stockholders within the time then required under Section 25102(o) shall be canceled, any Shares issued pursuant to any such
Awards shall be canceled, and any purchase of Shares subject to any such Award shall be rescinded. 

13.2    Term of Plan. Unless earlier terminated as provided herein, this Plan will
automatically terminate ten (10) years after the Effective Date. 
 13.3    Amendment or Termination
of Plan. Subject to Section 4.9 hereof, the Board may at any time (a) terminate or amend this Plan in any respect, including without limitation amendment of any form of Award Agreement or instrument to be executed pursuant
to this Plan and (b) terminate any and all outstanding Options, SARs or RSUs upon a dissolution or liquidation of the Company, followed by the payment of creditors and the distribution of any remaining funds to the Company’s stockholders;
provided, however, that the Board will not, without the approval of the stockholders of the Company, amend this Plan in any manner that requires such stockholder approval pursuant to Section 25102(o) or pursuant to
the Code or the regulations promulgated under the Code as such provisions apply to ISO plans. The termination of the Plan, or any amendment thereof, shall not affect any Share previously issued or any Award previously granted under the Plan. 

14.    DEFINITIONS. For all purposes of this Plan, the following terms will have the following
meanings. 
 “Acquisition,” for purposes of Section 11, means: 

(a)    any consolidation or merger in which the Company is a constituent entity or is a party in which the voting stock
and other voting securities of the Company that are outstanding immediately prior to the consummation of such consolidation or merger represent, or are converted into, securities of the surviving entity of such consolidation or merger (or of any
Parent of such surviving entity) that, immediately after the consummation of such consolidation or merger, together possess less than fifty percent (50%) of the total voting power of all voting securities of such surviving entity (or of any of its
Parents, if any) that are outstanding immediately after the consummation of such consolidation or merger; 
 (b)    a
sale or other transfer by the holders thereof of outstanding voting stock and/or other voting securities of the Company possessing more than fifty percent (50%) of the total voting power of all outstanding voting securities of the Company, whether
in one transaction or in a series of related transactions, pursuant to an agreement or agreements to which the Company is a party and that has been approved by the Board, and pursuant to which such outstanding voting securities are sold or
transferred to a single person or entity, to one or more persons or entities who are Affiliates of each other, or to one or more persons or entities acting in concert; or 

(c)    the sale, lease, transfer or other disposition, in a single transaction or series of related transactions, by the
Company and/or any Subsidiary or Subsidiaries of the Company, of all or substantially all the assets of the Company and its Subsidiaries taken as a whole (or, if substantially all of the assets of the Company and its Subsidiaries taken as a whole
are held by one or more Subsidiaries, the sale or disposition (whether by consolidation, merger, conversion or otherwise) of such Subsidiaries of the Company), except where such sale, lease, transfer or other disposition is made to the Company or
one or more wholly owned Subsidiaries of the Company. 

  
 14 

 Notwithstanding the foregoing, the following transactions shall not constitute an “Acquisition”:
(1) the closing of the Company’s first public offering pursuant to an effective registration statement filed under the Securities Act or (2) any transaction the sole purpose of which is to change the state of incorporation of the Company
or to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately before such transaction. 

“Affiliate” of a specified person means a person that directly, or indirectly through one or more
intermediaries, controls or is controlled by, or is under common control with, the person specified (where, for purposes of this definition, the term “control” (including the terms
“controlling,” “controlled by” and “under common control with”) means the possession, direct or indirect, of the power to direct or cause the direction of the management and
policies of a person, whether through the ownership of voting securities, by contract, or otherwise. 
 “Award”
means any award pursuant to the terms and conditions of this Plan, including any Option, Restricted Stock Unit, Stock Appreciation Right or Restricted Stock Award. 

“Award Agreement” means, with respect to each Award, the executed written or electronic agreement between the Company
and the Participant setting forth the terms and conditions of the Award as approved by the Committee. For purposes of the Plan, the Award Agreement may be accepted by a Participant via written, electronic or other means, subject to requirements
under applicable law. 
 “Board” means the Board of Directors of the Company. 

“Cause” means Termination because of (a) Participant’s unauthorized misuse of the Company or a Parent or
Subsidiary of the Company’s trade secrets or proprietary information, (b) Participant’s conviction of or plea of nolo contendere to a felony or a crime involving moral turpitude, (c) Participant’s committing an act of fraud
against the Company or a Parent or Subsidiary of the Company or (d) Participant’s gross negligence or willful misconduct in the performance of his or her duties that has had or will have a material adverse effect on the Company or Parent
or Subsidiary of the Company’ reputation or business. 
 “Code” means the U.S. Internal Revenue Code of 1986,
as amended. 
 “Committee” means the committee created and appointed by the Board to administer this Plan, or if no
committee is created and appointed, the Board. 
 “Company” means Impel NeuroPharma, Inc., a Delaware corporation,
or any successor corporation. 
 “Disability” means a Participant is unable to perform the duties of his or her
customary position of employment by reason of any medically determinable physical or mental impairment that can be expected to result in death or that can be expected to last for a continuous period of not less than twelve (12) months. The
Committee may require such medical or other evidence as it deems necessary to judge the nature and permanency of the Participant’s condition. 

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended. 

“Exercise Price” means the price per Share at which a holder of an Option or a SAR may purchase Shares issuable upon
exercise of the Option or the SAR. 

  
 15 

 “Fair Market Value” means, as of any date, the value of a Share
determined as follows: 
 (a)    if such Share is then publicly traded on a national securities exchange, its closing
price on the date of determination on the principal national securities exchange on which the Share is listed or admitted to trading as reported in The Wall Street Journal; 

(b)    if such Share is publicly traded but is not listed or admitted to trading on a national securities exchange, the
average of the closing bid and ask prices on the date of determination as reported by The Wall Street Journal (or as otherwise reported by any newspaper or other source as the Committee may determine); or 

(c)    if none of the foregoing is applicable to the valuation in question, by the Committee in good faith. 

“Option” means an award of an option to purchase Shares pursuant to Section 4 of this Plan. 

“Other Combination” for purposes of Section 11 means any (a) consolidation or merger in which the Company is
a constituent entity and is not the surviving entity of such consolidation or merger or (b) any conversion of the Company into another form of entity; provided that such consolidation, merger or conversion does not constitute an
Acquisition. 
 “Parent” of a specified entity means, any entity that, either directly or indirectly, owns or
controls such specified entity, where for this purpose, “control” means the ownership of stock, securities or other interests that possess at least a majority of the voting power of such specified entity (including indirect
ownership or control of such stock, securities or other interests). 
 “Participant” means a person who receives an
Award under this Plan. 
 “Plan” means this 2018 Equity Incentive Plan, as amended from time to time. 

“Purchase Price” means the price at which a Participant may purchase Restricted Stock pursuant to this Plan. 

“Restricted Stock” means Shares purchased pursuant to a Restricted Stock Award under this Plan. 

“Restricted Stock Award” means an award of Shares pursuant to Section 5 hereof. 

“Restricted Stock Unit” or “RSU” means an award made pursuant to Section 6 hereof. 

“Rule 701” means Rule 701 et seq. promulgated by the SEC under the Securities Act. 

“SEC” means the U.S. Securities and Exchange Commission. 

“Section 25102(o)” means Section 25102(o) of the California Corporations Code.

 “Securities Act” means the U.S. Securities Act of 1933, as amended. 

“Shares” means shares of the Company’s Common Stock, $0.0001 par value per share, reserved for issuance under
this Plan, as adjusted pursuant to Sections 2.2 and 11 hereof, and any successor security. 

  
 16 

 “Stock Appreciation Right” or “SAR” means an
award granted pursuant to Section 7 hereof. 
 “Subsidiary” means any entity (other than the Company) in an
unbroken chain of entities beginning with the Company if each of the entities other than the last entity in the unbroken chain owns stock or other equity securities representing fifty percent (50%) or more of the total combined voting power of all
classes of stock or other equity securities in one of the other entities in such chain. 
 “Termination” or
“Terminated” means, for purposes of this Plan with respect to a Participant, that the Participant has for any reason ceased to provide services as an employee, officer, director or consultant to the Company or a Parent or
Subsidiary of the Company. A Participant will not be deemed to have ceased to provide services while the Participant is on a bona fide leave of absence, if such leave was approved by the Company in writing. In the case of an approved leave of
absence, the Committee may make such provisions respecting crediting of service, including suspension of vesting of the Award (including pursuant to a formal policy adopted from time to time by the Company) it may deem appropriate. The Committee
will have sole discretion to determine whether a Participant has ceased to provide services and the effective date on which the Participant ceased to provide services (the “Termination Date”). 

“Unvested Shares” means “Unvested Shares” as defined in the Award Agreement for an Award. 

“Vested Shares” means “Vested Shares” as defined in the Award Agreement for an Award. 

* * * * * * * * * * * 

  
 17 

 PLAN AMENDMENTS 

March 18, 2019: Increased firm shares by 10,000,000 shares to 22,339,671 shares and adjustment to number of
shares that can be exercised as ISOs. Approved by Board on February 8, 2019 and by stockholders on March 14, 2019. Effective upon filing Certificate of Amendment to increase authorized common stock. 

  
 1 

 IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

RESTRICTED STOCK PURCHASE AGREEMENT 

This Restricted Stock Purchase Agreement (the “Agreement”) is made and entered into as of
                     (the “Effective Date”) by and between Impel NeuroPharma, Inc., a
Delaware corporation (the “Company”), and                      (“Purchaser”). Capitalized
terms not defined herein shall have the meanings ascribed to them in the Company’s 2018 Equity Incentive Plan, as may be amended from time to time (the “Plan”). 

 

	 	1.	 PURCHASE OF SHARES. 

1.1    Agreement to Purchase and
Sell Shares. On the Effective Date and subject to the terms and conditions of this Agreement and the Plan, Purchaser hereby purchases from the Company, and the Company hereby sells to Purchaser,
                 (                ) shares of the Company’s Common Stock (the
“Shares”), at the price of          ($                ) per share (the
“Purchase Price Per Share”) for a Total Purchase Price of                     
($                ) (the “Purchase Price”). As used in this Agreement, the term
“Shares” includes the Shares purchased under this Agreement and all securities received (a) in replacement of the Shares, (b) as a result of stock dividends or stock splits with respect to the Shares, and
(c) in replacement of the Shares in a merger, recapitalization, reorganization or similar corporate transaction. 

1.2    Payment. Purchaser hereby delivers payment of the Purchase Price as follows (check and
complete as appropriate): 
  

	☐	 in cash (by check) in the amount of $        , receipt of which is
acknowledged by the Company. 

  

	☐	 by cancellation of indebtedness of the Company owed to Purchaser in the amount of
$        . 

  

	☐	 by the waiver hereby of compensation due or accrued for services rendered in the amount of
$        . 

  

	☐	 by delivery of                 
fully-paid, nonassessable and vested shares of the Common Stock of the Company owned by Purchaser free and clear of all liens, claims, encumbrances or security interests, valued at the current Fair Market Value of
$                 per share (a) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144, (if purchased
by use of a promissory note, such note has been fully paid with respect to such vested shares), or (b) that were obtained by Purchaser in the open public market. 

 

	 	2.	 DELIVERIES. 

2.1    Deliveries by the Purchaser. Purchaser hereby delivers to the Company at its principal
executive offices: (a) this completed and signed Agreement, and (b) the Purchase Price, paid by delivery of the form of payment specified in Section 1.2. 

2.2    Deliveries by the Company. Upon its receipt of the Purchase Price, payment or other
provision for any applicable tax obligations, if any, and all the documents to be executed and delivered by Purchaser to the Company as provided herein, the Company will issue a duly executed stock certificate evidencing the Shares in the name of
Purchaser with the appropriate legends affixed thereto, to 

  
 1 

 
be placed in escrow as provided in Section 7.2 to secure performance of Purchaser’s obligations under Sections 5 and 6 until expiration or termination of the Company’s Repurchase
Option and Refusal Right (as such terms are defined in Sections 5 and 6, respectively). 

3.    REPRESENTATIONS AND WARRANTIES OF PURCHASER. Purchaser represents and warrants to the Company as
follows. 
 3.1    Agrees to Terms of the Plan. Purchaser has received a copy of the Plan,
has read and understands the terms of the Plan and this Agreement, and agrees to be bound by their terms and conditions. 

3.2    Acknowledgment of Tax Risks. Purchaser acknowledges that there may be adverse tax
consequences upon the purchase and the disposition of the Shares, and that Purchaser has been advised by the Company to consult a tax adviser prior to such purchase or disposition. Purchaser further acknowledges that Purchaser is not relying on the
Company or its counsel for tax advice regarding Purchaser’s purchaser or disposition of the Shares or the tax consequences to Purchaser of this Agreement. 

3.3    Shares Not Registered or Qualified. Purchaser understands and acknowledges that the
Shares have not been registered with the SEC under the Securities Act, or with any securities regulatory agency administering any state securities laws, and that, notwithstanding any other provision of this Agreement to the contrary, the purchase of
any Shares is expressly conditioned upon compliance with the Securities Act and all applicable state securities laws. Purchaser agrees to cooperate with the Company to ensure compliance with such laws. 

3.4    No Transfer Unless Registered or Exempt; Contractual Restrictions on Transfers.
Purchaser understands that Purchaser may not transfer any Shares unless such Shares are registered under the Securities Act or qualified under applicable state securities laws or unless, in the opinion of counsel to the Company, exemptions from such
registration and qualification requirements are available. Purchaser understands that only the Company may file a registration statement with the SEC and that the Company is under no obligation to do so with respect to the Shares. Purchaser has also
been advised that exemptions from registration and qualification may not be available or may not permit Purchaser to transfer all or any of the Shares in the amounts or at the times proposed by Purchaser. Purchaser further acknowledges that this
Agreement imposes additional restrictions on transfer of the Shares. 
 3.5    SEC Rule 701.
Shares that are issued pursuant to SEC Rule 701 promulgated under the Securities Act may become freely tradable by non-affiliates (under limited conditions regarding the method of sale) ninety
(90) days after the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC, subject to the lengthier market standoff agreement contained in
Section 4 of this Agreement or any other agreement entered into by Purchaser. Affiliates must comply with the provisions (other than the holding period requirements) of Rule 144 which permits certain limited sales of unregistered
securities. Rule 144 is not presently available with respect to the Shares and, in any event, requires that the Shares be held for a minimum of six (6) months, and in certain cases one (1) year, after they have been purchased and paid
for (within the meaning of Rule 144). Purchaser understands that use of a promissory note as payment for the Shares may not be deemed to be “full payment of the purchase price” within the meaning of Rule 144 unless certain conditions
are met and that, accordingly, the Rule 144 holding period of such Shares may not begin to run until such Shares are fully paid for within the meaning of Rule 144. Purchaser understands that Rule 144 may indefinitely restrict transfer of the Shares
so long as Purchaser remains an “affiliate” of the Company or if “current public information” about the Company (as defined in Rule 144) is not publicly available. 

  
 2 

 3.6    Access to Information. Purchaser has
had access to all information regarding the Company and its present and prospective business, assets, liabilities and financial condition that Purchaser reasonably considers important in making the decision to purchase the Shares, and Purchaser has
had ample opportunity to ask questions of the Company’s representatives concerning such matters and this investment. 

3.7    Understanding of Risks. Purchaser is fully aware of: (a) the highly speculative
nature of the investment in the Shares; (b) the financial hazards involved; (c) the lack of liquidity of the Shares and the restrictions on transferability of the Shares (e.g., that Purchaser may not be able to sell or dispose of
the Shares or use them as collateral for loans); (d) the qualifications and backgrounds of the management of the Company; and (e) the tax consequences of investment in, and disposition of, the Shares. 

3.8    Purchase for Own Account for Investment. Purchaser is purchasing the Shares for
Purchaser’s own account for investment purposes only and not with a view to, or for sale in connection with, a distribution of the Shares within the meaning of the Securities Act. Purchaser has no present intention of selling or otherwise
disposing of all or any portion of the Shares and no one other than Purchaser has any beneficial ownership of any of the Shares. 

3.9    No General Solicitation. At no time was Purchaser presented with or solicited by any
publicly issued or circulated newspaper, mail, radio, television or other form of general advertising or solicitation in connection with the offer, sale and purchase of the Shares. 

3.10    SEC Rule 144. Purchaser has been advised that SEC Rule 144 promulgated under the
Securities Act, which permits certain limited sales of unregistered securities, is not presently available with respect to the Shares and, in any event, requires that the Shares be held for a minimum of six (6) months, and in certain cases one
(1) year, after they have been purchased and paid for (within the meaning of Rule 144), subject to the lengthier market standoff agreement contained in Section 4 of this Agreement or any other agreement entered into by Purchaser.
Purchaser understands that Rule 144 may indefinitely restrict transfer of the Shares so long as Purchaser remains an “affiliate” of the Company or if “current public information” about the Company (as defined in Rule 144)
is not publicly available. 
 4.    MARKET STANDOFF AGREEMENT. Subject to the provisions of this Section,
Purchaser agrees in connection with any registration of the Company’s securities under the Securities Act or other registered public offering that, Purchaser will not sell or otherwise dispose of any Shares without the prior written consent of
the Company or such managing underwriters, as the case may be, for a period of time (not to exceed one hundred eighty (180) days) after the effective date of such registration requested by such managing underwriters and subject to all
restrictions as the Company or the managing underwriters may specify for employee-stockholders generally; provided however, that if during the last seventeen (17) days of the restricted period the Company issues an earnings
release or material news, or a material event relating to the Company occurs, or prior to the expiration of the restricted period the Company announces that it will release earnings results during the sixteen
(16)-day period beginning on the last day of the restricted period, then, if required by the underwriters or the Company, for so long as, and to the extent that, Rule 2711 or any successor rule of the
Financial Industry Regulatory Authority applies, the restrictions imposed by this Section 4 shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings
release or the occurrence of the material news or material event. The restricted period shall in any event terminate two (2) years after the closing date of the Company’s initial public offering. For purposes of this Section 4, the
term “Company” shall include any wholly-owned subsidiary of the Company into which the Company merges or consolidates. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the
certificates representing the shares subject to this Section and to impose stop transfer instructions with respect to the Shares until the end of such period. Purchaser further agrees that the underwriters of any

  
 3 

 
such registered public offering shall be third party beneficiaries of this Section 4 and agrees to enter into any agreement reasonably required by the underwriters to implement the
foregoing. Notwithstanding anything in this Section to the contrary, for the avoidance of doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or
(b) in a merger, consolidation, business combination or similar transaction.  
 5.    COMPANY’S
REPURCHASE OPTION FOR UNVESTED SHARES. The Company, or (subject to Section 5.6) its assignee, shall have the option to repurchase all or a portion of the Purchaser’s Shares that are Unvested Shares (as defined below) on the Termination
Date on the terms and conditions set forth in this Section (the “Repurchase Option”) if Purchaser is Terminated (as defined in the Plan) for any reason, or no reason, including without limitation, Purchaser’s death,
Disability (as defined in the Plan), voluntary resignation or termination by the Company with or without Cause. 

5.1    Termination and Termination Date. In case of any dispute as to whether Purchaser is
Terminated, the Committee shall have discretion to determine in good faith whether Purchaser has been Terminated and the effective date of such Termination (the “Termination Date”). 

5.2    Vested and Unvested Shares. Shares that are vested pursuant to the schedule set forth
in this Section 5.2 are “Vested Shares.” Shares that are not vested pursuant to such schedule are “Unvested Shares.” On the Effective Date,
                     of the Shares will be Unvested Shares (the “Initial Unvested Shares”). Provided Purchaser
continues to provide services to the Company or any Subsidiary or Parent of the Company at all times from the Effective Date until
                     (the “First Vesting Date”), then on the First Vesting Date
one-fourth (1/4th) of the Initial Unvested Shares will become Vested Shares, and on the same day of each succeeding calendar month thereafter (or if there
is no such day in any month, then the last day of such calendar month), an additional one forty-eighth 1/48th of the Initial Unvested Shares shall vest until the earliest to occur of (a) the
date all of the Shares are Vested Shares, (b) the Termination Date or (c) the date vesting otherwise terminates pursuant to this Agreement or the Plan. No fractional Shares shall be issued. No Shares will become Vested Shares after the
Termination Date. The number of the Shares that are Vested Shares or Unvested Shares will be proportionally adjusted to reflect any stock split, reverse stock split or similar change in the capital structure of the Company as set forth in
Section 2.2 of the Plan occurring after the Effective Date. 
 5.3    Exercise of Repurchase
Option. At any time within ninety (90) days after the Purchaser’s Termination Date, the Company, or its assignee, may, at its option, elect to repurchase any or all the Purchaser’s Shares that are Unvested Shares on the
Termination Date by giving Purchaser written notice of exercise of the Repurchase Option, specifying the number of Unvested Shares to be repurchased. Such Unvested Shares shall be repurchased at the Purchase Price Per Share, proportionately adjusted
for any stock split, reverse stock split or similar change in the capital structure of the Company as set forth in Section 2.2 of the Plan occurring after the Effective Date (the “Repurchase Price”). The Repurchase Price
shall be payable, at the option of the Company or its assignee, by check or by cancellation of all or a portion of any outstanding indebtedness owed by Purchaser to the Company and/or such assignee, or by any combination thereof. The Repurchase
Price shall be paid without interest within the term of the Repurchase Option as described in the first sentence of this Section 5.3. The Company may, at its option, decline to exercise its Repurchase Option or may exercise its Repurchase
Option only with respect to a portion of the Unvested Shares. 
 5.4    Right of Termination
Unaffected. Nothing in this Agreement shall be construed to limit or otherwise affect in any manner whatsoever the right or power of the Company (or any Parent or Subsidiary of the Company) to terminate Purchaser’s employment or
other relationship with Company (or the Parent or Subsidiary of the Company) at any time, for any reason or no reason, with or without Cause. 

  
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 5.5    Additional or Exchanged Securities and
Property. Subject to the provisions of Section 5.2 above, in the event of a merger or consolidation of the Company with or into another entity, any other corporate reorganization, a stock split, the declaration of a stock
dividend, the declaration of an extraordinary dividend payable in a form other than stock, a spin-off, a recapitalization or a similar transaction affecting the Company’s outstanding securities, any
securities or other property (including cash or cash equivalents) that are by reason of such transaction exchanged for, or distributed or issued with respect to, any Unvested Shares shall immediately be subject to the Repurchase Option. Appropriate
adjustments shall be made to the price per share to be paid for Unvested Shares upon the exercise of the Repurchase Option (by allocating such price among the Unvested Shares and such other securities or property), provided that the
aggregate purchase price payable for the Unvested Shares and all such other securities and property shall remain the same price that was original payable under the Repurchase Option to repurchase such Unvested Shares. Subject to the provisions of
Section 5.2 above, in the event of a merger or consolidation of the Company with or into another entity or any other corporate reorganization, the Repurchase Option may be exercised by the Company’s successor. 

5.6    Assignment of Repurchase Right. The Company may freely assign the Company’s
Repurchase Option, in whole or in part, provided that any person who accepts an assignment of the Repurchase Option from the Company shall assume all of the Company’s rights and obligations with respect to the Repurchase Option (to the extent
so assigned) under this Agreement. 
 6.    COMPANY’S REFUSAL RIGHT. Unvested Shares shall be subject to the
restrictions on transfer and the granting of encumbrances thereon as provided in Section 7 hereof. Before any Vested Shares (as defined in Section 5 hereof) held by Purchaser or any transferee of such Vested Shares (either sometimes
referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its assignee(s) will have a right of first refusal to
purchase the Vested Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Refusal Right”). 

6.1    Notice of Proposed Transfer. The Holder of the Offered Shares will deliver to the
Company a written notice (the “Notice”) stating: (a) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (b) the name and address of each proposed purchaser or other transferee of
Offered Shares (“Proposed Transferee”); (c) the number of Offered Shares to be transferred to each Proposed Transferee; (d) the bona fide cash price or other consideration for which the Holder proposes to transfer the
Offered Shares to each Proposed Transferee (the “Offered Price”); and (e) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its assignee(s) pursuant to the
Company’s Refusal Right at the Offered Price as provided for in this Agreement. 
 6.2    Exercise of
Refusal Right. At any time within thirty (30) days after the date the Notice is effective pursuant to Section 9.2, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or,
with the consent of the Holder, less than all) the Offered Shares proposed to be transferred to any one or more of the Proposed Transferees named in the Notice, at the purchase price, determined as provided in Section 6.3 below. 

6.3    Purchase Price. The purchase price for the Offered Shares purchased under this Section
will be the Offered Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift), then the purchase price will be the fair market value of the Offered Shares
as determined in good faith by the Company’s Board of Directors. If the Offered Price includes consideration other than cash, then the value of the non-cash consideration, as determined in good faith by
the Company’s Board of Directors, will conclusively be deemed to be the cash equivalent value of such non-cash consideration. 

  
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 6.4    Payment. The purchase price for the
Offered Shares will be paid, at the option of the Company and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding indebtedness owed by the Holder to the Company (or to such assignee, in the case of
a purchase of Offered Shares by such assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its
assignee(s), in the manner and at the time(s) set forth in the Notice. 
 6.5    Holder’s Right to
Transfer. If all of the Offered Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise
transfer such Offered Shares to such Proposed Transferee at the Offered Price or at a higher price, provided that (a) such sale or other transfer is consummated within one hundred twenty (120) days after the date the Notice
is effective pursuant to Section 9.2, (b) any such sale or other transfer is effected in compliance with all applicable securities laws, and (c) such Proposed Transferee agrees in writing that the provisions of this Section will continue
to apply to the Offered Shares in the hands of such Proposed Transferee. If the Offered Shares described in the Notice are not transferred to such Proposed Transferee within such one hundred twenty (120) day period, then a new Notice must be
given to the Company pursuant to which the Company will again be offered the Refusal Right before any Shares held by the Holder may be sold or otherwise transferred. 

6.6    Exempt Transfers. Notwithstanding the foregoing, the following transfers of Vested
Shares will be exempt from the Refusal Right: (a) the transfer of any or all of the Vested Shares during Purchaser’s lifetime by gift or on Purchaser’s death by will or intestacy to Purchaser’s “Immediate Family” (as
defined below) or to a trust for the benefit of Purchaser or Purchaser’s Immediate Family, provided that each transferee agrees in a writing satisfactory to the Company that the provisions of this Section will continue to apply to
the transferred Vested Shares in the hands of such transferee; (b) any transfer of Vested Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another entity or entities (except that, subject to
Section 6.7, unless the agreement of merger or consolidation expressly otherwise provides, the Refusal Right will continue to apply thereafter to such Vested Shares, in which case the surviving entity of such merger or consolidation shall
succeed to the rights of the Company under this Section); or (c) any transfer of Vested Shares pursuant to the winding up and dissolution of the Company. As used herein, the term “Immediate Family” will mean Purchaser’s
spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of Purchaser or Purchaser’s spouse, or the spouse of any of the above or Spousal Equivalent, as defined
herein. As used herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not the Purchaser and the Spousal Equivalent are the same sex, they are the
sole spousal equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else, (iv) both are at least 18 years of age and mentally competent to consent to
contract, (v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside, (vi) they are jointly responsible for each other’s common welfare and financial
obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely. 

6.7    Termination of Refusal Right. The Refusal Right will terminate as to all Shares:
(a) on the effective date of the first sale of Common Stock of the Company to the public pursuant to a registration statement filed with and declared effective by the SEC under the Securities Act or, if expressly approved by the Board as
terminating the Refusal Right, under the laws of any other country having substantially the same effect (other than a registration statement relating solely to the issuance of Common Stock pursuant to a business combination or an employee incentive
or benefit plan) or (b) on any transfer or conversion of Shares made pursuant to a statutory merger or statutory consolidation of the Company with or into another entity or entities if the common stock of the surviving entity or any direct or
indirect parent entity thereof is registered under the Securities Exchange Act of 1934, as amended. 

  
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 7.    ADDITIONAL RESTRICTIONS UPON SHARE OWNERSHIP OR TRANSFER.

 7.1    Rights as a Stockholder. Subject to the terms and conditions of this Agreement,
Purchaser will have all of the rights of a Stockholder of the Company with respect to the Shares from and after the date that Shares are issued to Purchaser until such time as Purchaser disposes of the Shares or the Company and/or its assignee(s)
exercise(s) the Refusal Right or the Repurchase Option. Upon an exercise of the Refusal Right or the Repurchase Option, Purchaser will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive
payment for the Shares so purchased in accordance with the provisions of this Agreement, and Purchaser will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation. 

7.2    Escrow. As security for Purchaser’s faithful performance of this Agreement,
Purchaser agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares, to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is
hereby appointed to hold such certificate(s) in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Purchaser and the Company agree that
Escrow Holder will not be liable to any party to this Agreement (or to any other person or entity) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow Holder under
this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions contemplated
by this Agreement. The Shares will be released from escrow upon termination of both the Refusal Right and the Repurchase Option. 

7.3    Encumbrances on Shares. Without the Company’s prior written consent given with the
approval of the Company’s Board of Directors, Purchaser may not grant a lien or security interest in, or pledge, hypothecate or encumber, any Unvested Shares. 

7.4    Restrictions on Transfers. Unvested Shares may not be sold or otherwise transferred by
Purchaser without the Company’s prior written consent. Purchaser hereby agrees that Purchaser shall make no disposition of the Shares (other than as permitted by this Agreement) unless and until: 

(a)    Purchaser shall have notified the Company of the proposed disposition and provided a written summary
of the terms and conditions of the proposed disposition; 
 (b)    Purchaser shall have complied with all
requirements of this Agreement applicable to the disposition of the Shares, including but not limited to the Refusal Right, the Market Standoff and the Repurchase Option; and 

(c)    Purchaser shall have provided the Company with written assurances, in form and substance
satisfactory to counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any state securities laws, and (ii) all appropriate actions necessary for compliance
with the registration and qualification requirements of the Securities Act and any state securities laws, or of any exemption from registration or qualification, available thereunder (including Rule 144) have been taken. 

Each person (other than the Company) to whom the Shares are transferred by means of one of the permitted transfers specified in this Agreement must, as a
condition precedent to the validity of such transfer, acknowledge in writing to the Company that such person is bound by the provisions of this Agreement and that the transferred Shares are subject to the Company’s Refusal Right or the
Repurchase Option granted hereunder and the market stand-off provisions of Section 4 hereof, to the same extent such Shares would be so subject if retained by the Purchaser. 

  
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 7.5    Restrictive Legends and Stop-transfer
Orders. Purchaser understands and agrees that the Company will place the legends set forth below or similar legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by applicable
laws, the Company’s Certificate of Incorporation or Bylaws, any other agreement between Purchaser and the Company or any agreement between Purchaser and any third party: 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR
UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT
TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN FORM AND
SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY APPLICABLE STATE SECURITIES LAWS. 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON PUBLIC RESALE AND TRANSFER, INCLUDING THE RIGHT OF FIRST
REFUSAL AND THE REPURCHASE OPTION HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S), AND A MARKET STANDOFF AGREEMENT, AS SET FORTH IN A RESTRICTED STOCK PURCHASE AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE
OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH PUBLIC SALE AND TRANSFER RESTRICTIONS INCLUDING THE RIGHT OF FIRST REFUSAL, THE REPURCHASE OPTION AND THE MARKET STANDOFF ARE BINDING ON TRANSFEREES OF THESE SHARES. 

Purchaser also agrees that, to ensure compliance with the restrictions imposed by this Agreement, the Company may issue appropriate “stop-transfer”
instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make appropriate notations to the same effect in its own records. The Company will not be required (a) to transfer on its books any Shares that
have been sold or otherwise transferred in violation of any of the provisions of this Agreement or (b) to treat as owner of such Shares, or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares
have been so transferred. 
 8.    TAX CONSEQUENCES. PURCHASER UNDERSTANDS THAT PURCHASER MAY SUFFER
ADVERSE TAX CONSEQUENCES AS A RESULT OF PURCHASER’S PURCHASE OR DISPOSITION OF THE SHARES. PURCHASER REPRESENTS (a) THAT PURCHASER HAS CONSULTED WITH ANY TAX ADVISER THAT PURCHASER DEEMS ADVISABLE IN CONNECTION WITH THE
PURCHASE OR DISPOSITION OF THE SHARES AND (b) THAT PURCHASER IS NOT RELYING ON THE COMPANY FOR ANY TAX ADVICE. Purchaser hereby acknowledges that Purchaser has been informed that, with respect to Unvested Shares, unless an
election is filed by Purchaser with the Internal Revenue Service (and, if necessary, the proper state taxing authorities) within 30 days after the purchase 

  
 8 

 
of the Shares electing, pursuant to Section 83(b) of the Internal Revenue Code (and similar state tax provisions, if applicable), to be taxed currently on any difference between the Purchase
Price of the Unvested Shares and their Fair Market Value on the date of purchase, there will be a recognition of taxable income to Purchaser, measured by the excess, if any, of the Fair Market Value of the Unvested Shares, at the time they cease to
be Unvested Shares, over the Purchase Price for such Shares. Purchaser represents that Purchaser has consulted any tax advisers Purchaser deems advisable in connection with Purchaser’s purchase of the Shares and the filing of the election under
Section 83(b) and similar tax provisions. A form of Election under Section 83(b) is attached hereto as Exhibit 1 for reference. BY PROVIDING THE FORM OF ELECTION, NEITHER THE COMPANY
NOR ITS LEGAL COUNSEL IS THEREBY UNDERTAKING TO FILE THE ELECTION FOR PURCHASER, WHICH OBLIGATION TO FILE SHALL REMAIN SOLELY WITH PURCHASER. 

9.    GENERAL PROVISIONS. 

9.1    Successors and Assigns. The Company may assign any of its rights under this Agreement,
including its rights to purchase Shares under the Refusal Right or the Repurchase Option. Neither Purchaser, nor any of Purchaser’s successors and assigns, may assign, whether voluntarily or by operation of law, any of its rights and
obligations under this Agreement, except with the prior written consent of the Company. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set
forth, this Agreement will be binding upon Purchaser and Purchaser’s heirs, executors, administrators, legal representatives, successors and assigns. 

9.2    Notices. Any and all notices required or permitted to be given to a party pursuant to
the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at the time of personal delivery, if delivery is in person;
(ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or hereafter modified by
subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iv) one (1) business day after deposit with an express overnight
courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (v) three (3) business days after deposit in the United
States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email, facsimile or by express courier. Any notice not delivered personally or by email will be
sent with postage and/or other charges prepaid and properly addressed to Purchaser at the last known address or facsimile number on the books of the Company, or at such other address or facsimile number as such other party may designate by one of
the indicated means of notice herein to the other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company will be marked “Attention: Chief Financial Officer.” Notices by facsimile
shall be machine verified as received. 
 9.3    Further Assurances. The parties agree to
execute such further documents and instruments and to take such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement. 

9.4    Entire Agreement. The Plan is incorporated herein by reference. The Plan and this
Agreement, together with all Exhibits hereto, constitute the entire agreement and understanding of the parties with respect to the subject matter of this Agreement, and supersede all prior understandings and agreements, between the parties hereto
with respect to the specific subject matter hereof. 

  
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 9.5    Severability. If any provision of
this Agreement is determined by any court or arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such
clause or provision cannot be so enforced, such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not
enforceable) never been contained in this Agreement. Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding
court or arbitrator of competent jurisdiction shall be binding, then both parties agree to substitute such provision(s) through good faith negotiations. 

9.6    Execution. This Agreement may be entered into in two or more counterparts, each of
which shall be deemed an original and all of which shall constitute one and the same agreement. This Agreement may be executed and delivered by facsimile and, upon such delivery, the facsimile signature will be deemed to have the same effect as if
the original signature had been delivered to the other party. 
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[Signature page follows] 

  
 10 

 IN WITNESS WHEREOF, the Company has caused this Restricted Stock Purchase Agreement
to be executed by its duly authorized representative, and Purchaser has executed this Restricted Stock Purchase Agreement, as of the date first set forth above. 
  

									
	IMPEL NEUROPHARMA, INC.	 		 	PURCHASER
				
	By:	 	
                     
                            
	 		 	
                     
                                         
               

					
	Address:	 	
                     
                                         
       
	 		 	Address:	 	
                     
                                         
       

		 	  
	 		 		 	
                     
                                    

		 		 		 	Email:	 	
                     
                                        

 Exhibit 
 Exhibit
1:     Form of Election Pursuant to Section 83(b) 

  
 11 

 EXHIBIT 1 

FORM OF SECTION 83(B) ELECTION 

 ELECTION UNDER SECTION 83(b) OF THE 

INTERNAL REVENUE CODE 
 The undersigned
Taxpayer hereby elects, pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include in gross income for the Taxpayer’s current taxable year the excess, if any, of the fair market value of the property described
below at the time of transfer over the amount paid for such property, as compensation for services. 
  

					
	 1.  TAXPAYER’S NAME:
	 	
                     
                                         
                              
	 	
			
	     TAXPAYER’S ADDRESS:
	 	
                     

	 	
		 	
                     

	 	
			
	     SOCIAL SECURITY NUMBER:
	 	
                     

	 	
			
	     TAXABLE YEAR:
	 	Calendar Year         	 	

  

	2.	 The property with respect to which the election is made is described as follows:
                 shares of Common Stock, par value $0.00001 per share, of Impel NeuroPharma, Inc., a Delaware corporation (the “Company”), which
is Taxpayer’s employer or the corporation for whom the Taxpayer performs services. 

  

	3.	 The date on which the shares were transferred was
            ,         . 

  

	4.	 The shares are subject to the following restrictions: The Company may repurchase all or a portion of the shares
at the Taxpayer’s original purchase price under certain conditions at the time of Taxpayer’s termination of employment or services. 

  

	5.	 The fair market value of the shares at the time of transfer (without regard to restrictions other than a
nonlapse restriction as defined in § 1.83-3(h) of the Income Tax Regulations) was $         per share ×
                 shares = $        . 

 

	6.	 The amount paid for such shares was $         per share ×
                 shares = $        . 

 

	7.	 The amount to include in the Taxpayer’s gross income for the Taxpayer’s current taxable year is
$        . 

 THIS ELECTION MUST BE FILED WITH THE INTERNAL REVENUE SERVICE
(“IRS”), AT THE OFFICE WHERE THE TAXPAYER FILES ANNUAL INCOME TAX RETURNS, WITHIN 30 DAYS AFTER THE DATE OF TRANSFER OF THE PROPERTY, AND MUST ALSO BE FILED WITH THE TAXPAYER’S INCOME TAX RETURNS FOR THE
CALENDAR YEAR. A COPY OF THE ELECTION HAS ALSO BEEN FURNISHED TO THE COMPANY. THE ELECTION CANNOT BE REVOKED WITHOUT THE CONSENT OF THE IRS. 
  

							
	Dated:	 	
                     
    
	 		 	
                     

		 		 		 	Taxpayer’s Signature

 EARLY EXERCISE FORM 

OPTION GRANT NO.          

NOTICE OF STOCK OPTION GRANT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

The Optionee named below (“Optionee”) has been granted an option (this “Option”) to purchase shares of Common
Stock, $0.0001 par value per share (the “Common Stock”), of Impel Neuropharma, Inc., a Delaware corporation (the “Company”), pursuant to the Company’s 2018 Equity Incentive Plan, as amended
from time to time (the “Plan”) on the terms, and subject to the conditions, described below and in the Stock Option Agreement attached hereto as Exhibit A, including its
annexes (the “Stock Option Agreement”). 
  

			
		
	Optionee:	 	
		
	Maximum Number of Shares Subject to this Option (the “Shares”):	 	
		
	Exercise Price Per Share:	 	$         per share
		
	Date of Grant:	 	
		
	Vesting Start Date:	 	
		
	Exercise Schedule:	 	This Option is immediately exercisable for all of the Shares, subject to the terms of the Stock Option Agreement
		
	Expiration Date:	 	The date ten (10) years after the Date of Grant set forth above, subject to earlier expiration in the event of Termination as provided in Section 3 of the Stock Option Agreement.
		
	 Tax Status of Option:
 (Check
Only One Box):
	 	 ☐ Incentive Stock Option (To the fullest extent permitted by the Code)

☐ Nonqualified Stock Option.
 (If
neither box is checked, this Option is a Nonqualified Stock Option).

 Vesting Schedule [EXAMPLE ONLY]: For so long as Optionee continuously provides services to the Company (or any
Subsidiary or Parent of the Company) as an employee, officer, director, contractor or consultant, the Shares subject to this Option will vest as follows: (a) prior to the first one (1) year anniversary of the Vesting Start Date, none of
the Shares will be vested; (b) [1/4th] of the Shares will be vested on the one (1) year anniversary of the Vesting Start Date; and (c) thereafter, this Option
will become vested and exercisable with respect to an additional [1/48th] of the Shares when Optionee completes each month of continuous service following the first one (1) year
anniversary of the Vesting Start Date. 
 General; Agreement: By their signatures below, Optionee and the Company agree that this Option is granted
under and governed by this Notice of Stock Option Grant (this “Grant Notice”) and by the provisions of the Plan and the Stock Option Agreement. The Plan and the Stock Option Agreement are incorporated herein by reference.
Capitalized terms used but not defined herein shall have the meanings given to them in the Plan or in the Stock Option Agreement, as applicable. By signing below, Optionee acknowledges receipt of a copy of this Grant Notice, the Plan and the Stock
Option Agreement, represents that Optionee has carefully read and is familiar with their provisions, and hereby accepts the Option subject to all of their respective terms and conditions. Optionee acknowledges that there may be adverse tax
consequences upon exercise of the Option or disposition of the Shares and that Optionee should consult a tax adviser prior to such exercise or disposition. Optionee agrees and acknowledges that the Vesting Schedule may change prospectively in the
event that Optionee’s service status changes between full and part time status in accordance with Company policies relating to work schedules and vesting of equity awards. 

Execution and Delivery: This Grant Notice may be executed and delivered electronically whether via the Company’s intranet or the Internet site of
a third party or via email or any other means of electronic delivery specified by the Company. By Optionee’s acceptance hereof (whether written, electronic or otherwise), Optionee agrees, to the fullest extent permitted by law, that in lieu of
receiving documents in paper format, Optionee accepts the electronic delivery of any documents that the Company (or any third party the Company may designate), may deliver in connection with this grant (including the Plan, this Grant Notice, the
Stock Option Agreement, the information described in Rules 701(e)(2), (3), (4) and (5) under the Securities Act (the “701 Disclosures”), account statements, or other communications or information) whether via the
Company’s intranet or the Internet site of such third party or via email or such other means of electronic delivery specified by the Company. 

IMPEL NEUROPHARMA, INC. 
  

							
	By /Signature:	 	
                     

	 	Optionee Signature:	 	
                     

				
	Typed Name:	 	
                     

	 	Optionee’s Name:	 	
				
	Title:	 	
                     

	 		 	

 ATTACHMENT: Exhibit A – Stock Option Agreement 

 Exhibit A 

Stock Option Agreement 

 EXHIBIT A 

EARLY EXERCISE FORM 

STOCK OPTION AGREEMENT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

This Stock Option Agreement (this “Agreement”) is made and entered into as of the date of grant (the “Date
of Grant”) set forth on the Notice of Stock Option Grant attached as the facing page to this Agreement (the “Grant Notice”) by and between Impel Neuropharma, Inc., a Delaware corporation (the
“Company”), and the optionee named on the Grant Notice (“Optionee”). Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in the Company’s 2018 Equity Incentive
Plan, as amended from time to time (the “Plan”), or in the Grant Notice, as applicable. 

1.    GRANT OF OPTION. The Company hereby grants to Optionee an option (this
“Option”) to purchase up to the total number of shares of Common Stock of the Company, $0.0001 par value per share (the “Common Stock”), set forth in the Grant Notice as the Shares (the
“Shares”) at the Exercise Price Per Share set forth in the Grant Notice (the “Exercise Price”), subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan. If
designated as an Incentive Stock Option in the Grant Notice, this Option is intended to qualify as an incentive stock option (the “ISO”) within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended
(the “Code”), except that if on the Date of Grant Optionee is not subject to U.S. income tax, then this Option shall be a NQSO. 

2.    EXERCISE PERIOD. 

2.1.    Exercise Period of Option. Subject to the conditions set forth in this Agreement, all
or part of this Option may be exercised at any time after the Date of Grant. Shares purchased by exercising this Option may be subject to the Repurchase Option as set forth in Section 7 below. This Option will become vested during its term as
to portions of the Shares in accordance with the Vesting Schedule set forth in the Grant Notice. Notwithstanding any provision in the Plan or this Agreement to the contrary, on or after Optionee’s Termination Date, this Option may not be
exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date. 

2.2.    Vesting of Option Shares. Shares with respect to which this Option is vested at a
given time pursuant to the Vesting Schedule set forth in the Grant Notice are “Vested Shares.” Shares with respect to which this Option is not vested at a given time pursuant to the Vesting Schedule set forth in the
Grant Notice are “Unvested Shares.” 

2.3.    Expiration. The Option shall expire on the Expiration Date set forth in the Grant
Notice or earlier as provided in Section 3 below. 
 3.    TERMINATION. 

3.1.    Termination for Any Reason Except Death, Disability or Cause. Except as provided in
subsection 3.2 in a case in which Optionee dies within three (3) months after Optionee is Terminated other than for Cause, if Optionee is Terminated for any reason (other than Optionee’s death or Disability or for Cause), then
(a) on and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s
Termination Date and (b) this Option to the extent (and only to the extent) that it is exercisable with respect to Vested Shares on Optionee’s Termination Date, may be exercised by Optionee no later than three (3) months after
Optionee’s Termination Date (but in no event may this Option be exercised after the Expiration Date). 

 3.2.    Termination Because of Death or
Disability. If Optionee is Terminated because of Optionee’s death or Disability (or if Optionee dies within three (3) months of the date of Optionee’s Termination for any reason other than for Cause), then (a) on
and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date and
(b) this Option, to the extent (and only to the extent) that it is exercisable with respect to Vested Shares on Optionee’s Termination Date, may be exercised by Optionee (or Optionee’s legal representative) no later than twelve
(12) months after Optionee’s Termination Date, but in no event later than the Expiration Date. Any exercise of this Option beyond (i) three (3) months after the date Optionee ceases to be an employee when Optionee’s
Termination is for any reason other than Optionee’s death or disability, within the meaning of Section 22(e)(3) of the Code; or (ii) twelve (12) months after the date Optionee ceases to be an employee when the termination is for
Optionee’s disability, within the meaning of Section 22(e)(3) of the Code, is deemed to be an NQSO. 

3.3.    Termination for Cause. If Optionee is Terminated for Cause, then Optionee may
exercise this Option, but only with respect to any Shares that are Vested Shares on Optionee’s Termination Date, and this Option shall expire on Optionee’s Termination Date, or at such later time and on such conditions as may be
affirmatively determined by the Committee. On and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested
Shares on Optionee’s Termination Date. 
 3.4.    No Obligation to Employ. Nothing in
the Plan or this Agreement shall confer on Optionee any right to continue in the employ of, or other relationship with, the Company or any Parent or Subsidiary of the Company, or limit in any way the right of the Company or any Parent or Subsidiary
of the Company to terminate Optionee’s employment or other relationship at any time, with or without Cause. 

4.    MANNER OF EXERCISE. 

4.1.    Stock Option Exercise Notice and Agreement. To exercise this Option, Optionee (or in
the case of exercise after Optionee’s death or incapacity, Optionee’s executor, administrator, heir or legatee, as the case may be) must deliver to the Company an executed Stock Option Exercise Notice and Agreement in the form attached
hereto as Annex A, or in such other form as may be approved by the Committee from time to time (the “Exercise Agreement”) and payment for the shares being purchased in accordance with
this Agreement. The Exercise Agreement shall set forth, among other things, (i) Optionee’s election to exercise this Option, (ii) the number of Shares being purchased, (iii) any representations, warranties and agreements
regarding Optionee’s investment intent and access to information as may be required by the Company to comply with applicable securities laws in connection with any exercise of this Option and (iv) any other agreements required by the
Company. If someone other than Optionee exercises this Option, then such person must submit documentation reasonably acceptable to the Company verifying that such person has the legal right to exercise this Option and such person shall be subject to
all of the restrictions contained herein as if such person were Optionee. 
 4.2.    Limitations on
Exercise. This Option may not be exercised unless such exercise is in compliance with all applicable federal and state securities laws, as they are in effect on the date of exercise. 

4.3.    Payment. The Exercise Agreement shall be accompanied by full payment of the Exercise
Price for the shares being purchased in cash (by check or wire transfer), or where permitted by law: 
 (a)    by
cancellation of indebtedness of the Company owed to Optionee; 

  
 2 

 (b)    by surrender of shares of the Company that are free and clear of
all security interests, pledges, liens, claims or encumbrances and: (i) for which the Company has received “full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the
Company by use of a promissory note, such note has been fully paid with respect to such shares) or (ii) that were obtained by Optionee in the public market; 

(c)    by participating in a formal cashless exercise program implemented by the Committee in connection with the Plan;

 (d)    provided that a public market for the Common Stock exists, subject to compliance with applicable law, by
exercising as set forth below, through a “same day sale” commitment from Optionee and a broker-dealer whereby Optionee irrevocably elects to exercise this Option and to sell a portion of the Shares so purchased sufficient to pay the total
Exercise Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or 

(e)    by any combination of the foregoing or any other method of payment approved by the Committee that constitutes
legal consideration for the issuance of Shares. 
 4.4.    Tax Withholding. Prior to the
issuance of the Shares upon exercise of the Option, Optionee must pay or provide for any applicable federal, state and local withholding obligations of the Company. If the Committee permits, Optionee may provide for payment of withholding taxes upon
exercise of the Option by requesting that the Company retain the minimum number of Shares with a Fair Market Value equal to the minimum amount of taxes required to be withheld; or to arrange a mandatory “sell to cover” on Optionee’s
behalf (without further authorization); but in no event will the Company withhold Shares or “sell to cover” if such withholding would result in adverse accounting consequences to the Company. In case of stock withholding or a sell to
cover, the Company shall issue the net number of Shares to Optionee by deducting the Shares retained from the Shares issuable upon exercise. 

4.5.    Issuance of Shares. Provided that the Exercise Agreement and payment are in form and
substance satisfactory to counsel for the Company, the Company shall issue the Shares issuable upon a valid exercise of this Option registered in the name of Optionee, Optionee’s authorized assignee, or Optionee’s legal representative, and
shall deliver certificates representing the Shares with the appropriate legends affixed thereto. 

5.    COMPLIANCE WITH LAWS AND 
REGULATIONS. The Plan and this Agreement are intended to comply with Section 25102(o) and Rule 701. Any provision of this Agreement that is inconsistent with Section 25102(o) or Rule 701 shall, without further act or amendment by the
Company or the Committee, be reformed to comply with the requirements of Section 25102(o) and/or Rule 701. The exercise of this Option and the issuance and transfer of Shares shall be subject to compliance by the Company and Optionee
with all applicable requirements of federal and state securities laws and with all applicable requirements of any stock exchange on which the Common Stock may be listed at the time of such issuance or transfer. Optionee understands that the Company
is under no obligation to register or qualify the Shares with the SEC, any state securities commission or any stock exchange to effect such compliance. 

6.    NONTRANSFERABILITY OF OPTION. This Option may not be transferred
in any manner other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to a testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor) or a
revocable trust, or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Optionee only by Optionee or in the event of
Optionee’s incapacity, by Optionee’s legal representative. The terms of this Option shall be binding upon the executors, administrators, successors and assigns of Optionee. 

  
 3 

 7.    COMPANY’S REPURCHASE OPTION FOR UNVESTED
SHARES. If Optionee is Terminated for any reason, or no reason, including without limitation, Optionee’s death, Disability, voluntary resignation or termination by the Company with or without Cause and Optionee has acquired Unvested Shares
by exercising this Option, then the Company and/or its assignee(s) shall have the option to repurchase all or a portion of Optionee’s Unvested Shares (as defined in Section 2.2 of this Agreement) as of the Termination Date on the terms and
conditions set forth in this Section 7 (the “Repurchase Option”). 

7.1.    Termination and Termination Date. In case of any dispute as to whether Optionee is
Terminated, the Committee shall have discretion to determine whether Optionee has been Terminated and the effective date of such Termination (the “Termination Date”). 

7.2.    Exercise of Repurchase Option. Subject to the foregoing provisions of this Section, at
any time within ninety (90) days after Optionee’s Termination Date, the Company and/or its assignee(s), may elect to repurchase any or all of Optionee’s Unvested Shares by giving Optionee written notice of exercise of the Repurchase
Option. 
 7.3.    Calculation of Repurchase Price for Unvested Shares. The Company or its
assignee shall have the option to repurchase from Optionee (or from Optionee’s personal representative as the case may be) the Unvested Shares at Optionee’s Exercise Price, as such may be proportionately adjusted for any stock split or
similar change in the capital structure of the Company as set forth in Section 2.2 of the Plan (the “Repurchase Price”). 

7.4.    Payment of Repurchase Price. The Repurchase Price shall be payable, at the option of
the Company or its assignee, by check or by cancellation of all or a portion of any outstanding indebtedness owed by Optionee to the Company and/or such assignee, or by any combination thereof. The Repurchase Price shall be paid without
interest within the term of the Repurchase Option as described in Section 7.2. 
 7.5.    Right of
Termination Unaffected. Nothing in this Agreement shall be construed to limit or otherwise affect in any manner whatsoever the right or power of the Company (or any Parent or Subsidiary of the Company) to terminate
Optionee’s employment or other relationship with Company (or any Parent or Subsidiary of the Company) at any time, for any reason or no reason, with or without Cause. 

8.    RESTRICTIONS ON TRANSFER. 

8.1.    Disposition of Shares. Optionee hereby agrees that Optionee shall make no disposition
of any of the Shares (other than as permitted by this Agreement) unless and until: 
 (a)    Optionee shall have
notified the Company of the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition; 

(b)    Optionee shall have complied with all requirements of this Agreement applicable to the disposition of the Shares;

 (c)    Optionee shall have provided the Company with written assurances, in form and substance satisfactory to
counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any applicable state securities laws or (ii) all appropriate actions necessary for compliance with the
registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) or applicable state securities laws have been taken; and 

  
 4 

 (d)    Optionee shall have provided the Company with written
assurances, in form and substance satisfactory to the Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the regulations promulgated under
Section 25102(o), Rule 701 or under any other applicable securities laws or adversely affect the Company’s ability to rely on the exemption(s) from registration under the Securities Act or under any other applicable securities laws for the
grant of the Option, the issuance of Shares thereunder or any other issuance of securities under the Plan. 

8.2.    Restriction on Transfer. Optionee shall not transfer, assign, grant a lien or security
interest in, pledge, hypothecate, encumber or otherwise dispose of any of the Shares which are subject to the Company’s Repurchase Option or the Right of First Refusal described below, except as permitted by this Agreement. 

8.3.    Transferee Obligations. Each person (other than the Company) to whom the Shares are
transferred by means of one of the permitted transfers specified in this Agreement must, as a condition precedent to the validity of such transfer, acknowledge in writing to the Company that such person is bound by the provisions of this Agreement
and that the transferred Shares are subject to (i) both the Company’s Repurchase Option and the Company’s Right of First Refusal granted hereunder and (ii) the market stand-off provisions
of Section 9 below, to the same extent such Shares would be so subject if retained by Optionee. 

9.    MARKET STANDOFF AGREEMENT. Optionee agrees that, subject to any early release provisions that apply
pro rata to stockholders of the Company according to their holdings of Common Stock (determined on an as-converted into Common Stock basis), Optionee will not, for a period of up to one hundred eighty
(180) days (plus up to an additional thirty five (35) days to the extent reasonably requested by the Company or such underwriter(s) to accommodate regulatory restrictions on the publication or other distribution of research reports or
earnings releases by the Company, including NASD and NYSE rules) following the effective date of the registration statement filed with the SEC relating to the initial underwritten sale of Common Stock of the Company to the public under the
Securities Act (the “IPO”), directly or indirectly sell, offer to sell, grant any option for the sale of, or otherwise dispose of any Common Stock or securities convertible into Common Stock, except for:
(i) transfers of Shares permitted under Section 10.6 hereof so long as such transferee furnishes to the Company and the managing underwriter their written consent to be bound by this Section 9 as a condition precedent to such
transfer; and (ii) sales of any securities to be included in the registration statement for the IPO. For the avoidance of doubt, the provisions of this Section shall only apply to the IPO. The restricted period shall in any event terminate two
(2) years after the closing date of the IPO. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the certificates representing the Shares subject to this Section and to impose stop
transfer instructions with respect to the Shares until the end of such period. Optionee further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing restrictions on transfer. For the avoidance of
doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or (b) in a merger, consolidation, business combination or similar transaction. 

10.    COMPANY’S RIGHT OF FIRST REFUSAL. Unvested Shares may not be sold or otherwise transferred, or
pledged by Optionee or made subject to a security interest, pledge or other lien without the Company’s prior written consent, which may be withheld in the Company’s sole and absolute discretion. Before any Vested Shares held by Optionee or
any transferee of such Vested Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its
assignee(s) will have a right of first refusal to purchase the Vested Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First
Refusal”). 

  
 5 

 10.1.    Notice of Proposed Transfer. The
Holder of the Offered Shares will deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (ii) the name and address
of each proposed purchaser or other transferee (the “Proposed Transferee”); (iii) the number of Offered Shares to be transferred to each Proposed Transferee; (iv) the bona fide cash price or other consideration for which
the Holder proposes to transfer the Offered Shares (the “Offered Price”); and (v) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its assignee(s) pursuant to the
Company’s Right of First Refusal at the Offered Price as provided for in this Agreement. 

10.2.    Exercise of Right of First Refusal. At any time within thirty (30) days after
the date of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or, with the consent of the Holder, less than all) the Offered Shares proposed to be transferred to any one or more of the
Proposed Transferees named in the Notice, at the purchase price, determined as specified below. 

10.3.    Purchase Price. The purchase price for the Offered Shares purchased under this
Section will be the Offered Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift) then the purchase price will be the fair market value of the Offered Shares
as determined in good faith by the Committee. If the Offered Price includes consideration other than cash, then the value of the non-cash consideration, as determined in good faith by the Committee, will
conclusively be deemed to be the cash equivalent value of such non-cash consideration. 

10.4.    Payment. Payment of the purchase price for the Offered Shares will be payable, at the
option of the Company and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by the Holder to the Company (or to such assignee, in the case of a purchase of Offered
Shares by such assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its assignee(s), in the
manner and at the time(s) set forth in the Notice. 
 10.5.    Holder’s Right to
Transfer. If all of the Offered Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise
transfer such Offered Shares to each Proposed Transferee at the Offered Price or at a higher price, provided that (i) such sale or other transfer is consummated within ninety (90) days after the date of the Notice,
(ii) any such sale or other transfer is effected in compliance with all applicable securities laws, and (iii) each Proposed Transferee agrees in writing that the provisions of this Section will continue to apply to the Offered Shares in
the hands of such Proposed Transferee. If the Offered Shares described in the Notice are not transferred to each Proposed Transferee within such ninety (90) day period, then a new Notice must be given to the Company pursuant to which the
Company will again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 

10.6.    Exempt Transfers. Notwithstanding anything to the contrary in this Section, the
following transfers of Vested Shares will be exempt from the Right of First Refusal: (i) the transfer of any or all of the Vested Shares during Optionee’s lifetime by gift or on Optionee’s death by will or intestacy to any member(s)
of Optionee’s “Immediate Family” (as defined below) or to a trust for the benefit of Optionee and/or member(s) of Optionee’s Immediate Family, provided that each transferee or other recipient agrees in a writing
satisfactory to the Company that the provisions of this Section will continue to apply to the transferred Vested Shares in the hands of such transferee or other recipient; (ii) any transfer of Vested Shares made pursuant to a statutory merger,
statutory consolidation of the Company with or into another corporation or corporations or a conversion of the Company into another form of legal entity (except that the Right of First Refusal will continue to apply thereafter to such Vested Shares,
in which case the surviving corporation of such merger or consolidation or the resulting entity of such conversion shall succeed to the rights of the Company under this Section unless the agreement of merger

  
 6 

 
or consolidation or conversion expressly otherwise provides); or (iii) any transfer of Vested Shares pursuant to the winding up and dissolution of the Company. As used herein, the term
“Immediate Family” will mean Optionee’s spouse, the lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of Optionee or Optionee’s spouse, or the
spouse of any of the above or Spousal Equivalent, as defined herein. As used herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not
Optionee and the Spousal Equivalent are the same sex, they are the sole spousal equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else, (iv) both
are at least 18 years of age and mentally competent to consent to contract, (v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside, (vi) they are
jointly responsible for each other’s common welfare and financial obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely. 

10.7.    Termination of Right of First Refusal. The Right of First Refusal will terminate as
to all Shares: (i) on the effective date of the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the Securities Act (other than a
registration statement relating solely to the issuance of Common Stock pursuant to a business combination or an employee incentive or benefit plan); (ii) on any transfer or conversion of Shares made pursuant to a statutory merger or statutory
consolidation of the Company with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect parent corporation thereof is registered under the Exchange Act; or (iii) on any
transfer or conversion of Shares made pursuant to a statutory conversion of the Company into another form of legal entity if the common equity (or comparable equity security) of entity resulting from such conversion is registered under the
Exchange Act. 
 10.8.    Encumbrances on Vested Shares. Optionee may grant a lien or
security interest in, or pledge, hypothecate or encumber Vested Shares only if each party to whom such lien or security interest is granted, or to whom such pledge, hypothecation or other encumbrance is made, agrees in a writing satisfactory to the
Company that: (i) such lien, security interest, pledge, hypothecation or encumbrance will not adversely affect or impair the Right of First Refusal or the rights of the Company and/or its assignee(s) with respect thereto and will not apply to
such Vested Shares after they are acquired by the Company and/or its assignees under this Section; and (ii) the provisions of this Agreement will continue to apply to such Vested Shares in the hands of such party and any transferee of such
party. Optionee may not grant a lien or security interest in, or pledge, hypothecate or encumber, any Unvested Shares. 

11.    RIGHTS AS A STOCKHOLDER. Optionee shall not have any of the rights of a stockholder with respect to
any Shares unless and until such Shares are issued to Optionee. Subject to the terms and conditions of this Agreement, Optionee will have all of the rights of a stockholder of the Company with respect to the Shares from and after the date that
Shares are issued to Optionee pursuant to, and in accordance with, the terms of the Exercise Agreement until such time as Optionee disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Repurchase Option or the Right of First
Refusal. Upon an exercise of the Repurchase Option or the Right of First Refusal, Optionee will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive payment for the Shares so purchased in
accordance with the provisions of this Agreement, and Optionee will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation. 

12.    ESCROW. As security for Optionee’s faithful performance of this Agreement, Optionee agrees,
immediately upon receipt of the stock certificate(s) evidencing the Shares, to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow Holder”), who is hereby appointed to
hold such certificate(s) and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Optionee 

  
 7 

 
and the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or
intentionally fraudulent in carrying out the duties of Escrow Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and
obey any order of any court with respect to the transactions contemplated by this Agreement and will not be liable for any act or omission taken by Escrow Holder in good faith reliance on such documents, the advice of counsel or a court order. The
Shares will be released from escrow upon termination of both the Repurchase Option and the Right of First Refusal. 

13.    RESTRICTIVE LEGENDS AND STOP-TRANSFER ORDERS. 

13.1.    Legends. Optionee understands and agrees that the Company will place the legends set
forth below or similar legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by state or U.S. Federal securities laws, the Company’s Certificate of Incorporation or Bylaws, any other
agreement between Optionee and the Company, or any agreement between Optionee and any third party (and any other legend(s) that the Company may become obligated to place on the stock certificate(s) evidencing the Shares under the terms of any
agreement to which the Company is or may become bound or obligated): 
 (a)    THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED
OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN
INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES LAWS. 
 (b)    THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
RESTRICTIONS ON RESALE AND TRANSFER, INCLUDING THE REPURCHASE OPTION AND RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF
WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH SALE AND TRANSFER RESTRICTIONS, INCLUDING THE REPURCHASE OPTION AND RIGHT OF FIRST REFUSAL, ARE BINDING ON TRANSFEREES OF THESE SHARES. 

(c)    THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN
STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE
EFFECTIVE DATE OF CERTAIN PUBLIC OFFERINGS OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES. 

13.2.    Stop-Transfer Instructions. Optionee agrees that, to ensure compliance with the
restrictions imposed by this Agreement, the Company may issue appropriate “stop-transfer” instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make appropriate notations to the same effect in
its own records. 

  
 8 

 13.3.    Refusal to Transfer. The Company
will not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Agreement or (ii) to treat as owner of such Shares, or to accord the right to vote or
pay dividends to any purchaser or other transferee to whom such Shares have been so transferred. 

14.    CERTAIN TAX CONSEQUENCES. Set forth below is a brief summary as of the Effective Date of the Plan of
some of the federal tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE
OPTION OR DISPOSING OF THE SHARES. 
 14.1.    Exercise of ISO. If the Option qualifies as
an ISO, there will be no regular federal income tax liability upon the exercise of the Option, although the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as a tax preference
item for federal alternative minimum tax purposes and may subject Optionee to the alternative minimum tax in the year of exercise. 

14.2.    Exercise of Nonqualified Stock Option. If the Option does not qualify as an ISO,
there may be a regular federal income tax liability upon the exercise of the Option. Optionee will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the Fair Market Value of the
Shares on the date of exercise over the Exercise Price. If Optionee is a current or former employee of the Company, the Company may be required to withhold from Optionee’s compensation or collect from Optionee and pay to the applicable taxing
authorities an amount equal to a percentage of this compensation income at the time of exercise. 

14.3.    Disposition of Shares. The following tax consequences may apply upon disposition of
the Shares. 
 (a)    Incentive Stock Options. If the Shares are held for more than twelve (12) months
after the date of purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for
federal income tax purposes. If Vested Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at
ordinary income rates in the year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. To the extent the Shares were exercised prior to vesting coincident
with the filing of an 83(b) Election, the amount taxed because of a disqualifying disposition will be based upon the excess, if any, of the fair market value on the date of vesting over the exercise price. 

(b)    Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of
purchase of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain. 

14.4.    Section 83(b) Election for Unvested Shares. With respect to Unvested Shares, which
are subject to the Repurchase Option, unless an election is filed by Optionee with the Internal Revenue Service (and, if necessary, the proper state taxing authorities), within thirty (30) days of the purchase of the
Unvested Shares, electing pursuant to Section 83(b) of the Code (and similar state tax provisions, if applicable) to be taxed currently on any difference between the Exercise Price of the Unvested Shares and their Fair Market Value on the date
of purchase, there may be a recognition of taxable income (including, where applicable, alternative minimum taxable income) to Optionee, measured by the excess, if any, of the Fair Market Value of the Unvested Shares at the time they cease to be
Unvested Shares, over the Exercise Price of the Unvested Shares. 

  
 9 

 15.    GENERAL PROVISIONS. 

15.1.    Interpretation. Any dispute regarding the interpretation of this Agreement shall be
submitted by Optionee or the Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and Optionee. 

15.2.    Entire Agreement. The Plan, the Grant Notice and the Exercise Agreement are each
incorporated herein by reference. This Agreement, the Grant Notice, the Plan and the Exercise Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior undertakings and agreements with
respect to such subject matter. 
 16.    NOTICES. Any and all notices required or permitted to be given
to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the following: (i) at the time of personal delivery, if
delivery is in person; (ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the other party at its facsimile number specified herein (or
hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the facsimile; (iv) one (1) business day after deposit with
an express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the courier requested; or (v) three (3) business days after
deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email, facsimile or by express courier. Any notice not delivered
personally or by email will be sent with postage and/or other charges prepaid and properly addressed to Optionee at the last known address or facsimile number on the books of the Company, or at such other address or facsimile number as such other
party may designate by one of the indicated means of notice herein to the other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company will be marked “Attention: Chief Financial
Officer.” Notices by facsimile shall be machine verified as received. 
 17.    SUCCESSORS AND
ASSIGNS. The Company may assign any of its rights under this Agreement including its rights to purchase Shares under both the Right of First Refusal and Repurchase Option. This Agreement shall be binding upon and inure to the benefit of the
successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be binding upon Optionee and Optionee’s heirs, executors, administrators, legal representatives, successors and assigns. 

18.    GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the internal laws
of the State of Washington as such laws are applied to agreements between Washington residents entered into and to be performed entirely within Washington. If any provision of this Agreement is determined by a court of law to be illegal or
unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable. 

19.    FURTHER ASSURANCES. The parties agree to execute such further documents and instruments and to take
such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement. 

20.    TITLES AND HEADINGS. The titles, captions and headings of this Agreement are included for ease of
reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and “exhibits”
to this Agreement. 
 21.    COUNTERPARTS. This Agreement may be executed in any number of counterparts,
each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement. 

  
 10 

 22.    SEVERABILITY. If any provision of this Agreement is
determined by any court or arbitrator of competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or
provision cannot be so enforced, such provision shall be stricken from this Agreement and the remainder of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never
been contained in this Agreement. Notwithstanding the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator
of competent jurisdiction shall be binding, then both parties agree to substitute such provision(s) through good faith negotiations. 

*  *  *  *  * 

Attachments: 
 Annex A: Form of Stock Option
Exercise Notice and Agreement 

  
 11 

 ANNEX A 

FORM OF STOCK OPTION EXERCISE NOTICE AND AGREEMENT 

 EARLY EXERCISE FORM 

STOCK OPTION EXERCISE NOTICE AND AGREEMENT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

*NOTE: You must sign this Notice on
Page 3 before submitting it to Impel Neuropharma, Inc. (the “Company”).  

OPTIONEE INFORMATION: Please provide the following information about yourself
(“Optionee”): 
  

									
	Name:	 	
                     

	 		 	Social Security Number:	 	
                     

	Address:	 	
                     

	 		 	Employee Number:	 	
                     

		 	
                     

	 		 	Email Address:	 	
                     

 OPTION INFORMATION: Please provide this information on the option being exercised
(the “Option”): 
  

			
	Grant No.	  	
		
	Date of Grant:	  	Type of Stock Option:
		
	Option Price per Share: $                	  	☐ Nonqualified (NQSO)
		
	 Total number of shares of Common Stock of the Company

subject to the Option:
	  	☐ Incentive (ISO)

 EXERCISE INFORMATION: 

Number of shares of Common Stock of the Company for which the Option is now being exercised
[                ]. (These shares are referred to below as the “Purchased Shares.”) 

Total Exercise Price Being Paid for the Purchased Shares: $         

Form of payment enclosed [check all that apply]: 
  

	☐	 Check for $        , payable to “Impel Neuropharma,
Inc..” 

  

	☐	 Certificate(s) for
                 shares of Common Stock of the Company. These shares will be valued as of the date this notice is received by the Company. [Requires Company
consent.] 

 AGREEMENTS, REPRESENTATIONS AND ACKNOWLEDGMENTS
OF OPTIONEE: By signing this Stock Option Exercise Notice and Agreement, Optionee hereby agrees with, and represents to, the Company as follows: 

 

	1.	 Terms Governing. I acknowledge and agree with the Company that I am acquiring the Purchased Shares by
exercise of this Option subject to all other terms and conditions of the Notice of Stock Option Grant and the Stock Option Agreement that govern the Option, including without limitation the terms of the Company’s 2018 Equity Incentive Plan, as
it may be amended (the “Plan”). 

  

	2.	 Investment Intent; Securities Law Restrictions. I represent and warrant to the Company that I am
acquiring and will hold the Purchased Shares for investment for my account only, and not with a view to, or for resale in connection with, any “distribution” of the Purchased Shares within the meaning of the Securities Act of 1933, as
amended (the “Securities Act”). I understand that the Purchased Shares 

 EARLY EXERCISE FORM 

 

	 	
have not been registered under the Securities Act by reason of a specific exemption from such registration requirement and that the Purchased Shares must be held by me indefinitely, unless they
are subsequently registered under the Securities Act or I obtain an opinion of counsel (in form and substance satisfactory to the Company and its counsel) that registration is not required. I acknowledge that the Company is under no obligation to
register the Purchased Shares under the Securities Act or under any other securities law. 

  

	3.	 Restrictions on Transfer: Rule 144. I will not sell, transfer or otherwise dispose of the Purchased
Shares in violation of the Securities Act, the Securities Exchange Act of 1934, or the rules promulgated thereunder (including Rule 144 under the Securities Act described below (“Rule 144”)) or of any other applicable
securities laws. I am aware of Rule 144, which permits limited public resales of securities acquired in a non-public offering, subject to satisfaction of certain conditions, which include (without
limitation) that: (a) certain current public information about the Company is available; (b) the resale occurs only after the holding period required by Rule 144 has been met; (c) the sale occurs through an unsolicited
“broker’s transaction;” and (d) the amount of securities being sold during any three-month period does not exceed specified limitations. I understand that the conditions for resale set forth in Rule 144 have not been
satisfied and that the Company has no plans to satisfy these conditions in the foreseeable future. 

  

	4.	 Access to Information; Understanding of Risk in Investment. I acknowledge that I have received and had
access to such information as I consider necessary or appropriate for deciding whether to invest in the Purchased Shares and that I had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the
issuance of the Purchased Shares. I am aware that my investment in the Company is a speculative investment that has limited liquidity and is subject to the risk of complete loss. I am able, without impairing my financial condition, to hold the
Purchased Shares for an indefinite period and to suffer a complete loss of my investment in the Purchased Shares. 

  

	5.	 Rights of First Refusal; Repurchase Options; Market Stand-off. I
acknowledge that the Purchased Shares remain subject to the Company’s Right of First Refusal, the Company’s Repurchase Option (with respect to unvested Purchased Shares) and the market stand-off
covenants (sometimes referred to as the “lock-up”), all in accordance with the applicable Notice of Stock Option Grant and the Stock Option Agreement that govern the Option 

 

	6.	 Form of Ownership. I acknowledge that the Company has encouraged me to consult my own adviser to
determine the form of ownership of the Purchased Shares that is appropriate for me. In the event that I choose to transfer my Purchased Shares to a trust, I agree to sign a Stock Transfer Agreement. In the event that I choose to transfer my
Purchased Shares to a trust that is not an eligible revocable trust, I also acknowledge that the transfer will be treated as a “disposition” for tax purposes. As a result, the favorable ISO tax treatment will be unavailable and other
unfavorable tax consequences may occur. 

  

	7.	 Investigation of Tax Consequences. I acknowledge that the Company has encouraged me to consult my own
adviser to determine the tax consequences of acquiring the Purchased Shares at this time. 

  

	8.	 Other Tax Matters. I agree that the Company does not have a duty to design or administer the Plan or its
other compensation programs in a manner that minimizes my tax liabilities. I will not make any claim against the Company or its Board, officers or employees related to tax liabilities arising from my options or my other compensation. In particular,
I acknowledge that my options (including the Option) are exempt from Section 409A of the Internal Revenue Code only if the exercise price per share is at least equal to the fair market value per share of the Common Stock at the time the option
was granted by the Board. Since shares of the Common Stock are not traded on an established securities market, the determination of their fair market value was made by the Board and/or by an independent valuation firm retained by the Company. I
acknowledge that there is no guarantee in 

  
 2 

 EARLY EXERCISE FORM 

 

	 	
either case that the Internal Revenue Service will agree with the valuation, and I will not make any claim against the Company or its Board of Directors, officers or employees in the event that
the Internal Revenue Service asserts that the valuation was too low. 

  

	9.	 Spouse Consent. I agree to seek the consent of my spouse to the extent required by the Company to
enforce the foregoing. 

  

	10.	 Tax Withholding. As a condition of exercising this Option, I agree to make adequate provision for
foreign, federal, state or other tax withholding obligations, if any, which arise upon the grant, vesting or exercise of this Option, or disposition of the Purchased Shares, whether by withholding, direct payment to the Company, or otherwise.

 IMPORTANT NOTE: UNVESTED PURCHASED SHARES ARE SUBJECT TO REPURCHASE BY THE COMPANY. PLEASE CONSULT WITH YOUR TAX
ADVISER CONCERNING THE ADVISABILITY OF FILING AN 83(b) ELECTION WITH THE INTERNAL REVENUE SERVICE WHICH MUST BE FILED WITHIN THIRTY (30) DAYS AFTER THE PURCHASE OF SHARES TO BE EFFECTIVE.  

A form of Election under Section 83(b) is attached hereto as Exhibit 1 for reference. Unless an 83(b) election is timely filed with the
Internal Revenue Service (and, if necessary, the proper state taxing authorities), electing pursuant to Section 83(b) of the Internal Revenue Code (and similar state tax provisions, if applicable) to be taxed currently on any difference between
the purchase price of the Unvested Purchased Shares and their fair market value on the date of purchase, there may be a recognition of taxable income (including, where applicable, alternative minimum taxable income) to you, measured by the excess,
if any, of the Fair Market Value of the Unvested Purchased Shares at the time they cease to be Unvested Purchased Shares, over the purchase price of the Unvested Purchased Shares. 

The undersigned hereby executes and delivers this Stock Option Exercise Notice and Agreement and agrees to be bound by its terms 

 

					
	SIGNATURE:	 		 	DATE:
	
                    
 
	 		 	
                    
 

	Optionee’s Name:	 		 	

 Attachments: 
 Exhibit
1 – Section 83(b) Election Form 
 [Signature Page to Stock Option Exercise Notice and Agreement] 

  
 3 

 EARLY EXERCISE FORM 

 

 EXHIBIT 1 

SECTION 83(b) ELECTION 

  

 ELECTION UNDER SECTION 83(b) OF THE 

INTERNAL REVENUE CODE 
 The undersigned
Taxpayer hereby elects, pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include the excess, if any, of the fair market value of the property described below at the time of transfer over the amount paid for such
property, as compensation for services in the calculation of: (1) regular gross income; (2) alternative minimum taxable income; or (3) disqualifying disposition gross income, as the case may be. 

 

					
	 1.  TAXPAYER’S NAME:
	 	
                     

	 	
			
	 TAXPAYER’S ADDRESS:
	 	
                     

	 	
		 	
                     

	 	
			
	 SOCIAL SECURITY NUMBER:
	 	
                     

	 	

  

	2.	 The property with respect to which the election is made is described as follows:
                 shares of Common Stock, par value $0.0001 per share, of Impel Neuropharma, Inc., a Delaware corporation (the “Company”), which
were transferred upon exercise of an option by the Company, which is Taxpayer’s employer or the corporation for whom the Taxpayer performs services. 

  

	3.	 The date on which the shares were transferred was pursuant to the exercise of the option was
            ,          and this election is made for calendar year         . 

 

	4.	 The shares received upon exercise of the option are subject to the following restrictions: The Company may
repurchase all or a portion of the shares at Taxpayer’s original purchase price per share, under certain conditions at the time of Taxpayer’s termination of employment or services. 

 

	5.	 The fair market value of the shares (without regard to restrictions other than restrictions which by their
terms will never lapse) was $         per share ×                  shares =
$         at the time of exercise of the option. 

  

	6.	 The amount paid for such shares upon exercise of the option was
$         per share ×                  shares = $        . 

 

	7.	 The Taxpayer has submitted a copy of this statement to the Company. 

 

	8.	 The amount to include in gross income is $        . [The result of the
amount reported in Item 5 minus the amount reported in Item 6.] 

 THIS ELECTION MUST BE FILED WITH THE INTERNAL REVENUE SERVICE
(“IRS”), AT THE OFFICE WHERE THE TAXPAYER FILES ANNUAL INCOME TAX RETURNS, WITHIN 30 DAYS AFTER THE DATE OF TRANSFER OF THE SHARES, AND MUST ALSO BE FILED WITH THE TAXPAYER’S INCOME TAX RETURNS FOR THE
CALENDAR YEAR. THE ELECTION CANNOT BE REVOKED WITHOUT THE CONSENT OF THE IRS. 
  

							
	Dated:	 	
                     

	 		 	
                     

		 		 		 	Taxpayer’s Signature

 OPTION GRANT NO.         

 NOTICE OF STOCK OPTION GRANT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

The Optionee named below (“Optionee”) has been granted an option (this “Option”) to purchase shares of Common
Stock, $0.0001 par value per share (the “Common Stock”), of Impel Neuropharma, Inc., a Delaware corporation (the “Company”), pursuant to the Company’s 2018 Equity Incentive Plan, as amended
from time to time (the “Plan”) on the terms, and subject to the conditions, described below and in the Stock Option Agreement attached hereto as Exhibit A, including its
annexes (the “Stock Option Agreement”). 
  

			
	 Optionee:
	 	
		
	Maximum Number of Shares Subject to this Option (the “Shares”):	 	
		
	 Exercise Price Per Share:
	 	$         per share
		
	 Date of Grant:
	 	
		
	 Vesting Start Date:
	 	
		
	 Exercise Schedule:
	 	This Option will become exercisable during its term with respect to portions of the Shares in accordance with the Vesting Schedule set forth below.
		
	 Expiration Date:
	 	The date ten (10) years after the Date of Grant set forth above, subject to earlier expiration in the event of Termination as provided in Section 3 of the Stock Option Agreement.
		
	 Tax Status of Option:

(Check Only One Box):
	 	 ☐ Incentive Stock Option (To the fullest extent permitted by the Code)

☐ Nonqualified Stock Option.
 (If
neither box is checked, this Option is a Nonqualified Stock Option).

 Vesting Schedule [EXAMPLE ONLY]: For so long as Optionee continuously provides services to the Company (or any
Subsidiary or Parent of the Company) as an employee, officer, director, contractor or consultant, this Option will vest (that is, become exercisable) with respect to the Shares as follows: (a) prior to the first one (1) year anniversary of
the Vesting Start Date this Option will not be vested or exercisable as to any of the Shares; (b) this Option will become vested and exercisable with respect to [1/4th]
of the Shares on the one (1) year anniversary of the Vesting Start Date; and (c) thereafter, this Option will become vested and exercisable with respect to an additional
[1/48th] of the Shares when Optionee completes each month of continuous service following the first one (1) year anniversary of the Vesting Start Date. 

General; Agreement: By their signatures below, Optionee and the Company agree that this Option is granted under and governed by this Notice of Stock
Option Grant (this “Grant Notice”) and by the provisions of the Plan and the Stock Option Agreement. The Plan and the Stock Option Agreement are incorporated herein by reference. Capitalized terms used but not defined herein
shall have the meanings given to them in the Plan or in the Stock Option Agreement, as applicable. By signing below, Optionee acknowledges receipt of a copy of this Grant Notice, the Plan and the Stock Option Agreement, represents that Optionee has
carefully read and is familiar with their provisions, and hereby accepts the Option subject to all of their respective terms and conditions. Optionee acknowledges that there may be adverse tax consequences upon exercise of the Option or disposition
of the Shares and that Optionee should consult a tax adviser prior to such exercise or disposition. Optionee agrees and acknowledges that the Vesting Schedule may change prospectively in the event that Optionee’s service status changes between
full and part time status in accordance with Company policies relating to work schedules and vesting of equity awards. 
 Execution and Delivery:
This Grant Notice may be executed and delivered electronically whether via the Company’s intranet or the Internet site of a third party or via email or any other means of electronic delivery specified by the Company. By Optionee’s
acceptance hereof (whether written, electronic or otherwise), Optionee agrees, to the fullest extent permitted by law, that in lieu of receiving documents in paper format, Optionee accepts the electronic delivery of any documents that the Company
(or any third party the Company may designate), may deliver in connection with this grant (including the Plan, this Grant Notice, the Stock Option Agreement, the information described in Rules 701(e)(2), (3), (4) and (5) under the Securities
Act (the “701 Disclosures”), account statements, or other communications or information) whether via the Company’s intranet or the Internet site of such third party or via email or such other means of electronic delivery
specified by the Company. 
 IMPEL NEUROPHARMA, INC. 
  

									
	By /Signature:	 	  
	 		 	Optionee Signature:	 	  

					
	Typed Name:	 	  
	 		 	Optionee’s Name:	 	  

					
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 ATTACHMENT: Exhibit A – Stock Option Agreement 

 Exhibit A 

Stock Option Agreement 

 EXHIBIT A 

STOCK OPTION AGREEMENT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

This Stock Option Agreement (this “Agreement”) is made and entered into as of the date of grant (the “Date
of Grant”) set forth on the Notice of Stock Option Grant attached as the facing page to this Agreement (the “Grant Notice”) by and between Impel Neuropharma, Inc., a Delaware corporation (the
“Company”), and the optionee named on the Grant Notice (“Optionee”). Capitalized terms not defined in this Agreement shall have the meaning ascribed to them in the Company’s 2018 Equity Incentive
Plan, as amended from time to time (the “Plan”), or in the Grant Notice, as applicable. 

1.    GRANT OF OPTION. The Company hereby grants to Optionee an option (this
“Option”) to purchase up to the total number of shares of Common Stock of the Company, $0.0001 par value per share (the “Common Stock”), set forth in the Grant Notice as the Shares (the
“Shares”) at the Exercise Price Per Share set forth in the Grant Notice (the “Exercise Price”), subject to all of the terms and conditions of the Grant Notice, this Agreement and the Plan. If
designated as an Incentive Stock Option in the Grant Notice, this Option is intended to qualify as an incentive stock option (the “ISO”) within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended
(the “Code”), except that if on the Date of Grant Optionee is not subject to U.S. income tax, then this Option shall be a NQSO. 

2.    EXERCISE PERIOD. 

2.1    Exercise Period of Option. This Option is considered to be “vested” with
respect to any particular Shares when this Option is exercisable with respect to such Shares. This Option will become vested during its term as to portions of the Shares in accordance with the Vesting Schedule set forth in the Grant Notice.
Notwithstanding any provision in the Plan or this Agreement to the contrary, on or after Optionee’s Termination Date, this Option may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date. 

2.2    Vesting of Option Shares. Shares with respect to which this Option is vested and
exercisable at a given time pursuant to the Vesting Schedule set forth in the Grant Notice are “Vested Shares.” Shares with respect to which this Option is not vested and exercisable at a given time pursuant to the
Vesting Schedule set forth in the Grant Notice are “Unvested Shares.” 

2.3    Expiration. The Option shall expire on the Expiration Date set forth in the Grant
Notice or earlier as provided in Section 3 below. 
 3.    TERMINATION. 

3.1    Termination for Any Reason Except Death, Disability or Cause. Except as provided in
subsection 3.2 in a case in which Optionee dies within three (3) months after Optionee is Terminated other than for Cause, if Optionee is Terminated for any reason (other than Optionee’s death or Disability or for Cause), then
(a) on and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s
Termination Date and (b) this Option to the extent (and only to the extent) that it is exercisable with respect to Vested Shares on Optionee’s Termination Date, may be exercised by Optionee no later than three (3) months after
Optionee’s Termination Date (but in no event may this Option be exercised after the Expiration Date). 

3.2    Termination Because of Death or Disability. If Optionee is Terminated because of
Optionee’s death or Disability (or if Optionee dies within three (3) months of the date of 

 
Optionee’s Termination for any reason other than for Cause), then (a) on and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that
are Unvested Shares and may not be exercised with respect to any Shares that are Unvested Shares on Optionee’s Termination Date and (b) this Option, to the extent (and only to the extent) that it is exercisable with respect to Vested
Shares on Optionee’s Termination Date, may be exercised by Optionee (or Optionee’s legal representative) no later than twelve (12) months after Optionee’s Termination Date, but in no event later than the Expiration Date. Any
exercise of this Option beyond (i) three (3) months after the date Optionee ceases to be an employee when Optionee’s Termination is for any reason other than Optionee’s death or disability, within the meaning of
Section 22(e)(3) of the Code; or (ii) twelve (12) months after the date Optionee ceases to be an employee when the termination is for Optionee’s disability, within the meaning of Section 22(e)(3) of the Code, is deemed to be
an NQSO. 
 3.3    Termination for Cause. If Optionee is Terminated for Cause, then
Optionee may exercise this Option, but only with respect to any Shares that are Vested Shares on Optionee’s Termination Date, and this Option shall expire on Optionee’s Termination Date, or at such later time and on such conditions as may
be affirmatively determined by the Committee. On and after Optionee’s Termination Date, this Option shall expire immediately with respect to any Shares that are Unvested Shares and may not be exercised with respect to any Shares that are
Unvested Shares on Optionee’s Termination Date. 
 3.4    No Obligation to Employ.
Nothing in the Plan or this Agreement shall confer on Optionee any right to continue in the employ of, or other relationship with, the Company or any Parent or Subsidiary of the Company, or limit in any way the right of the Company or any Parent or
Subsidiary of the Company to terminate Optionee’s employment or other relationship at any time, with or without Cause. 

4.    MANNER OF EXERCISE. 

4.1    Stock Option Exercise Notice and Agreement. To exercise this Option, Optionee (or in the
case of exercise after Optionee’s death or incapacity, Optionee’s executor, administrator, heir or legatee, as the case may be) must deliver to the Company an executed Stock Option Exercise Notice and Agreement in the form attached hereto
as Annex A, or in such other form as may be approved by the Committee from time to time (the “Exercise Agreement”) and payment for the shares being purchased in accordance with
this Agreement. The Exercise Agreement shall set forth, among other things, (i) Optionee’s election to exercise this Option, (ii) the number of Shares being purchased,    (iii) any representations, warranties
and agreements regarding Optionee’s investment intent and access to information as may be required by the Company to comply with applicable securities laws in connection with any exercise of this Option and (iv) any other agreements
required by the Company. If someone other than Optionee exercises this Option, then such person must submit documentation reasonably acceptable to the Company verifying that such person has the legal right to exercise this Option and such person
shall be subject to all of the restrictions contained herein as if such person were Optionee. 

4.2    Limitations on Exercise. This Option may not be exercised unless such exercise is in
compliance with all applicable federal and state securities laws, as they are in effect on the date of exercise. 

4.3    Payment. The Exercise Agreement shall be accompanied by full payment of the Exercise
Price for the shares being purchased in cash (by check or wire transfer), or where permitted by law: 
 (a)    by
cancellation of indebtedness of the Company owed to Optionee; 
 (b)    by surrender of shares of the Company that are
free and clear of all security interests, pledges, liens, claims or encumbrances and: (i) for which the Company has received 

  
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“full payment of the purchase price” within the meaning of SEC Rule 144 (and, if such shares were purchased from the Company by use of a promissory note, such note has been fully
paid with respect to such shares) or (ii) that were obtained by Optionee in the public market; 
 (c)    by
participating in a formal cashless exercise program implemented by the Committee in connection with the Plan; 

(d)    provided that a public market for the Common Stock exists and subject to compliance with applicable law, by
exercising as set forth below, through a “same day sale” commitment from Optionee and a broker-dealer whereby Optionee irrevocably elects to exercise this Option and to sell a portion of the Shares so purchased sufficient to pay the total
Exercise Price, and whereby the broker-dealer irrevocably commits upon receipt of such Shares to forward the total Exercise Price directly to the Company; or 

(e)    by any combination of the foregoing or any other method of payment approved by the Committee that constitutes
legal consideration for the issuance of Shares. 
 4.4    Tax Withholding. Prior to the
issuance of the Shares upon exercise of the Option, Optionee must pay or provide for any applicable federal, state and local withholding obligations of the Company. If the Committee permits, Optionee may provide for payment of withholding taxes upon
exercise of the Option by requesting that the Company retain the minimum number of Shares with a Fair Market Value equal to the minimum amount of taxes required to be withheld; or to arrange a mandatory “sell to cover” on Optionee’s
behalf (without further authorization); but in no event will the Company withhold Shares or “sell to cover” if such withholding would result in adverse accounting consequences to the Company. In case of stock withholding or a sell to
cover, the Company shall issue the net number of Shares to Optionee by deducting the Shares retained from the Shares issuable upon exercise. 

4.5    Issuance of Shares. Provided that the Exercise Agreement and payment are in form and
substance satisfactory to counsel for the Company, the Company shall issue the Shares issuable upon a valid exercise of this Option registered in the name of Optionee, Optionee’s authorized assignee, or Optionee’s legal representative, and
shall deliver certificates representing the Shares with the appropriate legends affixed thereto. 

5.    COMPLIANCE WITH LAWS AND 
REGULATIONS. The Plan and this Agreement are intended to comply with Section 25102(o) and Rule 701. Any provision of this Agreement that is inconsistent with Section 25102(o) or Rule 701 shall, without further act or amendment by the
Company or the Committee, be reformed to comply with the requirements of Section 25102(o) and/or Rule 701. The exercise of this Option and the issuance and transfer of Shares shall be subject to compliance by the Company and Optionee
with all applicable requirements of federal and state securities laws and with all applicable requirements of any stock exchange on which the Common Stock may be listed at the time of such issuance or transfer. Optionee understands that the Company
is under no obligation to register or qualify the Shares with the SEC, any state securities commission or any stock exchange to effect such compliance. 

6.    NONTRANSFERABILITY OF OPTION. This Option may not be transferred
in any manner other than by will or by the laws of descent and distribution, and, with respect to NQSOs, by instrument to a testamentary trust in which the options are to be passed to beneficiaries upon the death of the trustor (settlor) or a
revocable trust, or by gift to “immediate family” as that term is defined in 17 C.F.R. 240.16a-1(e), and may be exercised during the lifetime of Optionee only by Optionee or in the event of
Optionee’s incapacity, by Optionee’s legal representative. The terms of this Option shall be binding upon the executors, administrators, successors and assigns of Optionee. 

  
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 7.    RESTRICTIONS ON TRANSFER. 

7.1    Disposition of Shares. Optionee hereby agrees that Optionee shall make no disposition of
any of the Shares (other than as permitted by this Agreement) unless and until: 
 (a)    Optionee shall have notified
the Company of the proposed disposition and provided a written summary of the terms and conditions of the proposed disposition; 

(b)    Optionee shall have complied with all requirements of this Agreement applicable to the disposition of the Shares;

 (c)    Optionee shall have provided the Company with written assurances, in form and substance satisfactory to
counsel for the Company, that (i) the proposed disposition does not require registration of the Shares under the Securities Act or under any applicable state securities laws or (ii) all appropriate actions necessary for compliance with the
registration requirements of the Securities Act or of any exemption from registration available under the Securities Act (including Rule 144) or applicable state securities laws have been taken; and 

(d)    Optionee shall have provided the Company with written assurances, in form and substance satisfactory to the
Company, that the proposed disposition will not result in the contravention of any transfer restrictions applicable to the Shares pursuant to the provisions of the regulations promulgated under Section 25102(o), Rule 701 or under any other
applicable securities laws or adversely affect the Company’s ability to rely on the exemption(s) from registration under the Securities Act or under any other applicable securities laws for the grant of the Option, the issuance of Shares
thereunder or any other issuance of securities under the Plan. 
 7.2    Restriction on
Transfer. Optionee shall not transfer, assign, grant a lien or security interest in, pledge, hypothecate, encumber or otherwise dispose of any of the Shares which are subject to the Company’s Right of First Refusal described
below, except as permitted by this Agreement. 
 7.3    Transferee Obligations. Each person
(other than the Company) to whom the Shares are transferred by means of one of the permitted transfers specified in this Agreement must, as a condition precedent to the validity of such transfer, acknowledge in writing to the Company that such
person is bound by the provisions of this Agreement and that the transferred Shares are subject to (i) the Company’s Right of First Refusal granted hereunder and (ii) the market stand-off
provisions of Section 8 below, to the same extent such Shares would be so subject if retained by Optionee. 

8.    MARKET STANDOFF AGREEMENT. Optionee agrees that, subject to any early release provisions that apply
pro rata to stockholders of the Company according to their holdings of Common Stock (determined on an as-converted into Common Stock basis), Optionee will not, for a period of up to one hundred eighty
(180) days (plus up to an additional thirty five (35) days to the extent reasonably requested by the Company or such underwriter(s) to accommodate regulatory restrictions on the publication or other distribution of research reports or
earnings releases by the Company, including NASD and NYSE rules) following the effective date of the registration statement filed with the SEC relating to the initial underwritten sale of Common Stock of the Company to the public under the
Securities Act (the “IPO”), directly or indirectly sell, offer to sell, grant any option for the sale of, or otherwise dispose of any Common Stock or securities convertible into Common Stock, except for:
(i) transfers of Shares permitted under Section 9.6 hereof so long as such transferee furnishes to the Company and the managing underwriter their written consent to be bound by this Section 8 as a condition precedent to such transfer;
and (ii) sales of any securities to be included in the registration statement for the IPO. For the avoidance of doubt, the provisions of this Section shall only apply to the IPO. The restricted period shall in any event terminate two
(2) years after the closing date of the IPO. In order to enforce the foregoing covenant, the Company shall have the right to place restrictive legends on the certificates representing the Shares subject to this Section and to impose stop
transfer instructions with 

  
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respect to the Shares until the end of such period. Optionee further agrees to enter into any agreement reasonably required by the underwriters to implement the foregoing restrictions on
transfer. For the avoidance of doubt, the foregoing provisions of this Section shall not apply to any registration of securities of the Company (a) under an employee benefit plan or (b) in a merger, consolidation, business combination or
similar transaction. 
 9.    COMPANY’S RIGHT OF FIRST REFUSAL. Before any Shares held by Optionee or
any transferee of such Shares (either sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including, without limitation, a transfer by gift or operation of law), the Company and/or its
assignee(s) will have a right of first refusal to purchase the Shares to be sold or transferred (the “Offered Shares”) on the terms and conditions set forth in this Section (the “Right of First
Refusal”). 
 9.1    Notice of Proposed Transfer. The Holder of the Offered
Shares will deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer the Offered Shares; (ii) the name and address of each proposed
purchaser or other transferee (the “Proposed Transferee”); (iii) the number of Offered Shares to be transferred to each Proposed Transferee; (iv) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Offered Shares (the “Offered Price”); and (v) that the Holder acknowledges this Notice is an offer to sell the Offered Shares to the Company and/or its assignee(s) pursuant to the Company’s
Right of First Refusal at the Offered Price as provided for in this Agreement. 
 9.2    Exercise of Right
of First Refusal. At any time within thirty (30) days after the date of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all (or, with the consent of the Holder, less
than all) the Offered Shares proposed to be transferred to any one or more of the Proposed Transferees named in the Notice, at the purchase price, determined as specified below. 

9.3    Purchase Price. The purchase price for the Offered Shares purchased under this Section
will be the Offered Price, provided that if the Offered Price consists of no legal consideration (as, for example, in the case of a transfer by gift) then the purchase price will be the fair market value of the Offered Shares as
determined in good faith by the Committee. If the Offered Price includes consideration other than cash, then the value of the non-cash consideration, as determined in good faith by the Committee, will
conclusively be deemed to be the cash equivalent value of such non-cash consideration. 

9.4    Payment. Payment of the purchase price for the Offered Shares will be payable, at the
option of the Company and/or its assignee(s) (as applicable), by check or by cancellation of all or a portion of any outstanding purchase money indebtedness owed by the Holder to the Company (or to such assignee, in the case of a purchase of Offered
Shares by such assignee) or by any combination thereof. The purchase price will be paid without interest within sixty (60) days after the Company’s receipt of the Notice, or, at the option of the Company and/or its assignee(s), in the
manner and at the time(s) set forth in the Notice. 
 9.5    Holder’s Right to
Transfer. If all of the Offered Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided in this Section, then the Holder may sell or otherwise
transfer such Offered Shares to each Proposed Transferee at the Offered Price or at a higher price, provided that (i) such sale or other transfer is consummated within ninety (90) days after the date of the Notice,
(ii) any such sale or other transfer is effected in compliance with all applicable securities laws, and (iii) each Proposed Transferee agrees in writing that the provisions of this Section will continue to apply to the Offered Shares in
the hands of such Proposed Transferee. If the Offered Shares described in the Notice are not transferred to each Proposed Transferee within such ninety (90) day period, then a new Notice must be given to the Company pursuant to which the
Company will again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 

  
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 9.6    Exempt Transfers. Notwithstanding
anything to the contrary in this Section, the following transfers of Shares will be exempt from the Right of First Refusal: (i) the transfer of any or all of the Shares during Optionee’s lifetime by gift or on Optionee’s death by will
or intestacy to any member(s) of Optionee’s “Immediate Family” (as defined below) or to a trust for the benefit of Optionee and/or member(s) of Optionee’s Immediate Family, provided that each transferee or other
recipient agrees in a writing satisfactory to the Company that the provisions of this Section will continue to apply to the transferred Shares in the hands of such transferee or other recipient; (ii) any transfer of Shares made pursuant to a
statutory merger, statutory consolidation of the Company with or into another corporation or corporations or a conversion of the Company into another form of legal entity (except that the Right of First Refusal will continue to apply thereafter to
such Shares, in which case the surviving corporation of such merger or consolidation or the resulting entity of such conversion shall succeed to the rights of the Company under this Section unless the agreement of merger or consolidation or
conversion expressly otherwise provides); or (iii) any transfer of Shares pursuant to the winding up and dissolution of the Company. As used herein, the term “Immediate Family” will mean Optionee’s spouse, the
lineal descendant or antecedent, father, mother, brother or sister, child, adopted child, grandchild or adopted grandchild of Optionee or Optionee’s spouse, or the spouse of any of the above or Spousal Equivalent, as defined herein. As used
herein, a person is deemed to be a “Spousal Equivalent” provided the following circumstances are true: (i) irrespective of whether or not Optionee and the Spousal Equivalent are the same sex, they are the sole spousal
equivalent of the other for the last twelve (12) months, (ii) they intend to remain so indefinitely, (iii) neither are married to anyone else, (iv) both are at least 18 years of age and mentally competent to consent to contract,
(v) they are not related by blood to a degree of closeness that which would prohibit legal marriage in the state in which they legally reside, (vi) they are jointly responsible for each other’s common welfare and financial
obligations, and (vii) they reside together in the same residence for the last twelve (12) months and intend to do so indefinitely. 

9.7    Termination of Right of First Refusal. The Right of First Refusal will terminate as to
all Shares: (i) on the effective date of the first sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the SEC under the Securities Act (other than a
registration statement relating solely to the issuance of Common Stock pursuant to a business combination or an employee incentive or benefit plan); (ii) on any transfer or conversion of Shares made pursuant to a statutory merger or statutory
consolidation of the Company with or into another corporation or corporations if the common stock of the surviving corporation or any direct or indirect parent corporation thereof is registered under the Exchange Act; or (iii) on any
transfer or conversion of Shares made pursuant to a statutory conversion of the Company into another form of legal entity if the common equity (or comparable equity security) of entity resulting from such conversion is registered under the
Exchange Act. 
 9.8    Encumbrances on Shares. Optionee may grant a lien or security
interest in, or pledge, hypothecate or encumber Shares only if each party to whom such lien or security interest is granted, or to whom such pledge, hypothecation or other encumbrance is made, agrees in a writing satisfactory to the Company that:
(i) such lien, security interest, pledge, hypothecation or encumbrance will not adversely affect or impair the Right of First Refusal or the rights of the Company and/or its assignee(s) with respect thereto and will not apply to such Shares
after they are acquired by the Company and/or its assignees under this Section; and (ii) the provisions of this Agreement will continue to apply to such Shares in the hands of such party and any transferee of such party. 

10.    RIGHTS AS A STOCKHOLDER. Optionee shall not have any of the rights of a stockholder with respect to
any Shares unless and until such Shares are issued to Optionee. Subject to the terms and conditions of this Agreement, Optionee will have all of the rights of a stockholder of the Company with respect to the Shares from and after the date that
Shares are issued to Optionee pursuant to, and in accordance with, the terms of the Exercise Agreement until such time as Optionee disposes of the Shares or the Company and/or its assignee(s) exercise(s) the Right of First Refusal. Upon an exercise
of the Right of First Refusal, Optionee will have no further rights as a holder of the Shares so purchased upon such exercise, other than the right to receive payment for the Shares so purchased in accordance with the provisions of this Agreement,
and Optionee will promptly surrender the stock certificate(s) evidencing the Shares so purchased to the Company for transfer or cancellation. 

  
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 11.    ESCROW. As security for Optionee’s faithful
performance of this Agreement, Optionee agrees, immediately upon receipt of the stock certificate(s) evidencing the Shares, to deliver such certificate(s) to the Secretary of the Company or other designee of the Company (the “Escrow
Holder”), who is hereby appointed to hold such certificate(s) in escrow and to take all such actions and to effectuate all such transfers and/or releases of such Shares as are in accordance with the terms of this Agreement. Optionee and
the Company agree that Escrow Holder will not be liable to any party to this Agreement (or to any other party) for any actions or omissions unless Escrow Holder is grossly negligent or intentionally fraudulent in carrying out the duties of Escrow
Holder under this Agreement. Escrow Holder may rely upon any letter, notice or other document executed with any signature purported to be genuine and may rely on the advice of counsel and obey any order of any court with respect to the transactions
contemplated by this Agreement and will not be liable for any act or omission taken by Escrow Holder in good faith reliance on such documents, the advice of counsel or a court order. The Shares will be released from escrow upon termination of the
Right of First Refusal. 
 12.    RESTRICTIVE LEGENDS AND STOP-TRANSFER ORDERS. 

12.1    Legends. Optionee understands and agrees that the Company will place the legends set
forth below or similar legends on any stock certificate(s) evidencing the Shares, together with any other legends that may be required by state or U.S. Federal securities laws, the Company’s Certificate of Incorporation or Bylaws, any other
agreement between Optionee and the Company, or any agreement between Optionee and any third party (and any other legend(s) that the Company may become obligated to place on the stock certificate(s) evidencing the Shares under the terms of any
agreement to which the Company is or may become bound or obligated): 
 (a)    THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR UNDER THE SECURITIES LAWS OF CERTAIN STATES. THESE SECURITIES ARE SUBJECT TO RESTRICTIONS ON TRANSFERABILITY AND RESALE AND MAY NOT BE TRANSFERRED
OR RESOLD EXCEPT AS PERMITTED UNDER THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS, PURSUANT TO REGISTRATION OR EXEMPTION THEREFROM. INVESTORS SHOULD BE AWARE THAT THEY MAY BE REQUIRED TO BEAR THE FINANCIAL RISKS OF THIS INVESTMENT FOR AN
INDEFINITE PERIOD OF TIME. THE ISSUER OF THESE SECURITIES MAY REQUIRE AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER TO THE EFFECT THAT ANY PROPOSED TRANSFER OR RESALE IS IN COMPLIANCE WITH THE SECURITIES ACT AND ANY
APPLICABLE STATE SECURITIES LAWS. 
 (b)    THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
RESTRICTIONS ON RESALE AND TRANSFER, INCLUDING THE RIGHT OF FIRST REFUSAL HELD BY THE ISSUER AND/OR ITS ASSIGNEE(S) AS SET FORTH IN A STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED
AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH SALE AND TRANSFER RESTRICTIONS, INCLUDING THE RIGHT OF FIRST REFUSAL, ARE BINDING ON TRANSFEREES OF THESE SHARES. 

(c)    THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A MARKET STANDOFF RESTRICTION AS SET FORTH IN A CERTAIN
STOCK OPTION AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. AS A RESULT OF SUCH AGREEMENT, THESE SHARES MAY NOT BE TRADED PRIOR TO 180 DAYS AFTER THE
EFFECTIVE DATE OF CERTAIN PUBLIC OFFERINGS OF THE COMMON STOCK OF THE ISSUER HEREOF. SUCH RESTRICTION IS BINDING ON TRANSFEREES OF THESE SHARES. 

  
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 12.2    Stop-Transfer Instructions. Optionee
agrees that, to ensure compliance with the restrictions imposed by this Agreement, the Company may issue appropriate “stop-transfer” instructions to its transfer agent, if any, and if the Company transfers its own securities, it may make
appropriate notations to the same effect in its own records. 
 12.3    Refusal to Transfer.
The Company will not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Agreement or (ii) to treat as owner of such Shares, or to accord the right
to vote or pay dividends to any purchaser or other transferee to whom such Shares have been so transferred. 

13.    CERTAIN TAX CONSEQUENCES. Set forth below is a brief summary as of the Effective Date of the Plan of
some of the federal tax consequences of exercise of the Option and disposition of the Shares. THIS SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE. OPTIONEE SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE
OPTION OR DISPOSING OF THE SHARES. 
 13.1    Exercise of ISO. If the Option qualifies as an
ISO, there will be no regular federal income tax liability upon the exercise of the Option, although the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price will be treated as a tax preference item
for federal alternative minimum tax purposes and may subject Optionee to the alternative minimum tax in the year of exercise. 

13.2    Exercise of Nonqualified Stock Option. If the Option does not qualify as an ISO, there
may be a regular federal income tax liability upon the exercise of the Option. Optionee will be treated as having received compensation income (taxable at ordinary income tax rates) equal to the excess, if any, of the Fair Market Value of the Shares
on the date of exercise over the Exercise Price. If Optionee is a current or former employee of the Company, the Company may be required to withhold from Optionee’s compensation or collect from Optionee and pay to the applicable taxing
authorities an amount equal to a percentage of this compensation income at the time of exercise. 

13.3    Disposition of Shares. The following tax consequences may apply upon disposition of
the Shares. 
 (a)    Incentive Stock Options. If the Shares are held for more than twelve (12) months
after the date of purchase of the Shares pursuant to the exercise of an ISO and are disposed of more than two (2) years after the Date of Grant, any gain realized on disposition of the Shares will be treated as long term capital gain for
federal income tax purposes. If Shares purchased under an ISO are disposed of within the applicable one (1) year or two (2) year period, any gain realized on such disposition will be treated as compensation income (taxable at ordinary
income rates in the year of the disposition) to the extent of the excess, if any, of the Fair Market Value of the Shares on the date of exercise over the Exercise Price. 

(b)    Nonqualified Stock Options. If the Shares are held for more than twelve (12) months after the date of
purchase of the Shares pursuant to the exercise of an NQSO, any gain realized on disposition of the Shares will be treated as long term capital gain. 

14.    GENERAL PROVISIONS. 

14.1    Interpretation. Any dispute regarding the interpretation of this Agreement shall be
submitted by Optionee or the Company to the Committee for review. The resolution of such a dispute by the Committee shall be final and binding on the Company and Optionee. 

  
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 14.2    Entire Agreement. The Plan, the
Grant Notice and the Exercise Agreement are each incorporated herein by reference. This Agreement, the Grant Notice, the Plan and the Exercise Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and
supersede all prior undertakings and agreements with respect to such subject matter. 
 15.    NOTICES.
Any and all notices required or permitted to be given to a party pursuant to the provisions of this Agreement will be in writing and will be effective and deemed to provide such party sufficient notice under this Agreement on the earliest of the
following: (i) at the time of personal delivery, if delivery is in person; (ii) at the time an electronic confirmation of receipt is received, if delivery is by email; (iii) at the time of transmission by facsimile, addressed to the
other party at its facsimile number specified herein (or hereafter modified by subsequent notice to the parties hereto), with confirmation of receipt made by both telephone and printed confirmation sheet verifying successful transmission of the
facsimile; (iv) one (1) business day after deposit with an express overnight courier for United States deliveries, or two (2) business days after such deposit for deliveries outside of the United States, with proof of delivery from the
courier requested; or (v) three (3) business days after deposit in the United States mail by certified mail (return receipt requested) for United States deliveries. Any notice for delivery outside the United States will be sent by email,
facsimile or by express courier. Any notice not delivered personally or by email will be sent with postage and/or other charges prepaid and properly addressed to Optionee at the last known address or facsimile number on the books of the Company, or
at such other address or facsimile number as such other party may designate by one of the indicated means of notice herein to the other parties hereto or, in the case of the Company, to it at its principal place of business. Notices to the Company
will be marked “Attention: Chief Financial Officer.” Notices by facsimile shall be machine verified as received. 

16.    SUCCESSORS AND ASSIGNS. The Company may assign any of its rights under this Agreement including its
rights to purchase Shares under the Right of First Refusal. This Agreement shall be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein, this Agreement shall be
binding upon Optionee and Optionee’s heirs, executors, administrators, legal representatives, successors and assigns. 

17.    GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the internal laws
of the State of Washington as such laws are applied to agreements between Washington residents entered into and to be performed entirely within Washington. If any provision of this Agreement is determined by a court of law to be illegal or
unenforceable, then such provision will be enforced to the maximum extent possible and the other provisions will remain fully effective and enforceable. 

18.    FURTHER ASSURANCES. The parties agree to execute such further documents and instruments and to take
such further actions as may be reasonably necessary to carry out the purposes and intent of this Agreement. 

19.    TITLES AND HEADINGS. The titles, captions and headings of this Agreement are included for ease of
reference only and will be disregarded in interpreting or construing this Agreement. Unless otherwise specifically stated, all references herein to “sections” and “exhibits” will mean “sections” and “exhibits”
to this Agreement. 
 20.    COUNTERPARTS. This Agreement may be executed in any number of counterparts,
each of which when so executed and delivered will be deemed an original, and all of which together shall constitute one and the same agreement. 

21.    SEVERABILITY. If any provision of this Agreement is determined by any court or arbitrator of
competent jurisdiction to be invalid, illegal or unenforceable in any respect, such provision will be enforced to the maximum extent possible given the intent of the parties hereto. If such clause or provision cannot be so enforced, such provision
shall be stricken from this Agreement and the remainder 

  
 10 

 
of this Agreement shall be enforced as if such invalid, illegal or unenforceable clause or provision had (to the extent not enforceable) never been contained in this Agreement. Notwithstanding
the forgoing, if the value of this Agreement based upon the substantial benefit of the bargain for any party is materially impaired, which determination as made by the presiding court or arbitrator of competent jurisdiction shall be binding, then
both parties agree to substitute such provision(s) through good faith negotiations. 
 *  *  *  *  *

 Attachment:    Annex A: Form of Stock Option Exercise Notice and Agreement 

  
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 ANNEX A 

FORM OF STOCK OPTION EXERCISE NOTICE AND AGREEMENT 

 STOCK OPTION EXERCISE NOTICE AND AGREEMENT 

IMPEL NEUROPHARMA, INC. 

2018 EQUITY INCENTIVE PLAN 

*NOTE: You must sign this Notice on
Page 3 before submitting it to Impel Neuropharma, Inc. (the “Company”).  

OPTIONEE INFORMATION: Please provide the following information about yourself
(“Optionee”): 
  

			
	Name:
                                         
                   	  	Social Security Number:
                                         
                       
	Address:
                                         
               	  	Employee Number:
                                         
                               
	                                      
                                 	  	Email Address:
                                         
                                      

 OPTION INFORMATION: Please provide this information on the option being exercised
(the “Option”): 
  

			
	Grant No.	  	
		
	Date of Grant:	  	Type of Stock Option:
		
	Option Price per Share: $         	  	☐ Nonqualified (NQSO)
		
	 Total number of shares of Common Stock of the Company

subject to the Option:
	  	☐ Incentive (ISO)

 EXERCISE INFORMATION: 

Number of shares of Common Stock of the Company for which the Option is now being exercised
[                ]. (These shares are referred to below as the “Purchased Shares.”) 

Total Exercise Price Being Paid for the Purchased Shares: $                 

 Form of payment enclosed [check all that apply]: 
  

	☐	 Check for $         , payable to “Impel Neuropharma,
Inc..” 

  

	☐	 Certificate(s) for
                 shares of Common Stock of the Company. These shares will be valued as of the date this notice is received by the Company. [Requires Company
consent.] 

 AGREEMENTS, REPRESENTATIONS AND ACKNOWLEDGMENTS
OF OPTIONEE: By signing this Stock Option Exercise Notice and Agreement, Optionee hereby agrees with, and represents to, the Company as follows: 

 

	1.	 Terms Governing. I acknowledge and agree with the Company that I am acquiring the Purchased Shares by
exercise of this Option subject to all other terms and conditions of the Notice of Stock Option Grant and the Stock Option Agreement that govern the Option, including without limitation the terms of the Company’s 2018 Equity Incentive Plan, as
it may be amended (the “Plan”). 

  

	2.	 Investment Intent; Securities Law Restrictions. I represent and warrant to the Company that I am
acquiring and will hold the Purchased Shares for investment for my account only, and not with a view to, or for resale in connection with, any “distribution” of the Purchased Shares within the meaning of the Securities Act of 1933, as
amended (the “Securities Act”). I understand that the Purchased Shares have not been registered under the Securities Act by reason of a specific exemption from such

	 	
registration requirement and that the Purchased Shares must be held by me indefinitely, unless they are subsequently registered under the Securities Act or I obtain an opinion of counsel (in form
and substance satisfactory to the Company and its counsel) that registration is not required. I acknowledge that the Company is under no obligation to register the Purchased Shares under the Securities Act or under any other securities law.

  

	3.	 Restrictions on Transfer: Rule 144. I will not sell, transfer or otherwise dispose of the Purchased
Shares in violation of the Securities Act, the Securities Exchange Act of 1934, or the rules promulgated thereunder (including Rule 144 under the Securities Act described below (“Rule 144”)) or of any other applicable
securities laws. I am aware of Rule 144, which permits limited public resales of securities acquired in a non-public offering, subject to satisfaction of certain conditions, which include (without
limitation) that: (a) certain current public information about the Company is available; (b) the resale occurs only after the holding period required by Rule 144 has been met; (c) the sale occurs through an unsolicited
“broker’s transaction”; and (d) the amount of securities being sold during any three-month period does not exceed specified limitations. I understand that the conditions for resale set forth in Rule 144 have not been
satisfied and that the Company has no plans to satisfy these conditions in the foreseeable future. 

  

	4.	 Access to Information; Understanding of Risk in Investment. I acknowledge that I have received and had
access to such information as I consider necessary or appropriate for deciding whether to invest in the Purchased Shares and that I had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the
issuance of the Purchased Shares. I am aware that my investment in the Company is a speculative investment that has limited liquidity and is subject to the risk of complete loss. I am able, without impairing my financial condition, to hold the
Purchased Shares for an indefinite period and to suffer a complete loss of my investment in the Purchased Shares. 

  

	5.	 Rights of First Refusal; Market Stand-off. I acknowledge that
the Purchased Shares remain subject to the Company’s Right of First Refusal and the market stand-off covenants (sometimes referred to as the “lock-up”),
all in accordance with the applicable Notice of Stock Option Grant and the Stock Option Agreement that govern the Option. 

  

	6.	 Form of Ownership. I acknowledge that the Company has encouraged me to consult my own adviser to
determine the form of ownership of the Purchased Shares that is appropriate for me. In the event that I choose to transfer my Purchased Shares to a trust, I agree to sign a Stock Transfer Agreement. In the event that I choose to transfer my
Purchased Shares to a trust that is not an eligible revocable trust, I also acknowledge that the transfer will be treated as a “disposition” for tax purposes. As a result, the favorable ISO tax treatment will be unavailable and other
unfavorable tax consequences may occur. 

  

	7.	 Investigation of Tax Consequences. I acknowledge that the Company has encouraged me to consult my own
adviser to determine the tax consequences of acquiring the Purchased Shares at this time. 

  

	8.	 Other Tax Matters. I agree that the Company does not have a duty to design or administer the Plan or its
other compensation programs in a manner that minimizes my tax liabilities. I will not make any claim against the Company or its Board, officers or employees related to tax liabilities arising from my options or my other compensation. In particular,
I acknowledge that my options (including the Option) are exempt from section 409A of the Internal Revenue Code only if the exercise price per share is at least equal to the fair market value per share of the Common Stock at the time the option was
granted by the Board. Since shares of the Common Stock are not traded on an established securities market, the determination of their fair market value was made by the Board and/or by an independent valuation firm retained by the Company. I
acknowledge that there is no guarantee in either case that the Internal Revenue Service will agree with the valuation, and I will not make any claim against the Company or its Board, officers or employees in the event that the Internal Revenue
Service asserts that the valuation was too low. 

  
 3 

	9.	 Spouse Consent. I agree to seek the consent of my spouse to the extent required by the Company to
enforce the foregoing. 

  

	10.	 Tax Withholding. As a condition of exercising this Option, I agree to make adequate provision for
foreign, federal, state or other tax withholding obligations, if any, which arise upon the grant, vesting or exercise of this Option, or disposition of the Purchased Shares, whether by withholding, direct payment to the Company, or otherwise.

 The undersigned hereby executes and delivers this Stock Option Exercise Notice and Agreement and agrees to be bound by its terms 

 

			
	SIGNATURE:	  	DATE:
		
	  
 Optionee’s Name:
	  	  

                          
  

 [Signature Page to Stock Option Exercise Notice and Agreement] 

  
 4

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