EX-10.3





 Exhibit 10.3 

RA MEDICAL SYSTEMS, INC. 

2018 STOCK COMPENSATION PLAN 

1.    Purposes of the Plan. The purposes of this Plan are: 

 

	 	•	 	 to attract and retain the best available personnel for positions of substantial responsibility,



  

	 	•	 	 to provide additional incentive to Employees, Directors and Consultants, and 



 

	 	•	 	 to promote the success of the Company’s business. 



The Plan permits the grant of Incentive Stock Options, Nonstatutory Stock Options, Stock Appreciation Rights, Restricted Stock
and Restricted Stock Units. 
 2.    Definitions. As used herein, the following definitions will
apply: 
 (a)    “Administrator” means the Board or any of its Committees as will be
administering the Plan, in accordance with Section 4 of the Plan. 
 (b)    “Applicable
Laws” means the legal and regulatory requirements relating to the administration of equity-based awards, including but not limited to the related issuance of shares of Common Stock, including but not limited to, under U.S. federal and state
corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws of any foreign country or jurisdiction where Awards are, or will be,
granted under the Plan. 
 (c)    “Award” means, individually or collectively, a grant
under the Plan of Options, Stock Appreciation Rights, Restricted Stock, or Restricted Stock Units. 

(d)    “Award Agreement” means the written or electronic agreement setting forth the
terms and provisions applicable to each Award granted under the Plan. The Award Agreement is subject to the terms and conditions of the Plan. 

(e)    “Board” means the Board of Directors of the Company. 

(f)    “Change in Control” means the occurrence of any of the following events: 

(i)    Change in Ownership of the Company. A change in the ownership of the Company which
occurs on the date that any one person, or more than one person acting as a group (“Person”), acquires ownership of the stock of the Company that, together with the stock held by such Person, constitutes more than fifty percent
(50%) of the total voting power of the stock of the Company; provided, however, that for purposes of this subsection, the acquisition of additional stock by any one Person, who is considered to own more than fifty percent (50%) of the
total voting power of the stock of the Company will not be considered a Change in Control; provided, further, 












 
that any change in the ownership of the stock of the Company as a result of a private financing of the Company that is approved by the Board also will not be considered a Change in Control.
Further, if the stockholders of the Company immediately before such change in ownership continue to retain immediately after the change in ownership, in substantially the same proportions as their ownership of shares of the Company’s voting
stock immediately prior to the change in ownership, direct or indirect beneficial ownership of fifty percent (50%) or more of the total voting power of the stock of the Company or of the ultimate parent entity of the Company, such event shall not be
considered a Change in Control under this subsection (i). For this purpose, indirect beneficial ownership shall include, without limitation, an interest resulting from ownership of the voting securities of one or more corporations or other business
entities which own the Company, as the case may be, either directly or through one or more subsidiary corporations or other business entities; or 

(ii)    Change in Effective Control of the Company. If the Company has a class of securities
registered pursuant to Section 12 of the Exchange Act, a change in the effective control of the Company which occurs on the date that a majority of members of the Board is replaced during any twelve (12) month period by Directors whose
appointment or election is not endorsed by a majority of the members of the Board prior to the date of the appointment or election. For purposes of this subsection (ii), if any Person is considered to be in effective control of the Company, the
acquisition of additional control of the Company by the same Person will not be considered a Change in Control; or 

(iii)    Change in Ownership of a Substantial Portion of the Company’s Assets.
A change in the ownership of a substantial portion of the Company’s assets which occurs on the date that any Person acquires (or has acquired during the twelve (12) month period ending on the date of the most recent acquisition by such
Person or Persons) assets from the Company that have a total gross fair market value equal to or more than fifty percent (50%) of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition
or acquisitions; provided, however, that for purposes of this subsection (iii), the following will not constitute a change in the ownership of a substantial portion of the Company’s assets: (A) a transfer to an entity that is controlled by
the Company’s stockholders immediately after the transfer, or (B) a transfer of assets by the Company to: (1) a stockholder of the Company (immediately before the asset transfer) in exchange for or with respect to the
Company’s stock, (2) an entity, fifty percent (50%) or more of the total value or voting power of which is owned, directly or indirectly, by the Company, (3) a Person, that owns, directly or indirectly, fifty percent
(50%) or more of the total value or voting power of all the outstanding stock of the Company, or (4) an entity, at least fifty percent (50%) of the total value or voting power of which is owned, directly or indirectly, by a Person
described in this subsection (iii)(B)(3). For purposes of this subsection (iii), gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined without regard to any liabilities
associated with such assets. 
 For purposes of this Section 2(f), persons will be considered to be acting as a group
if they are owners of a corporation that enters into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company. 

Notwithstanding the foregoing, a transaction will not be deemed a Change in Control unless the transaction qualifies as a
change in control event within the meaning of Code Section 409A, as it has been and may be amended from time to time, and any proposed or final 

  
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Treasury Regulations and Internal Revenue Service guidance that has been promulgated or may be promulgated thereunder from time to time. 

Further and for the avoidance of doubt, a transaction will not constitute a Change in Control if: (i) its sole purpose
is to change the jurisdiction of the Company’s incorporation, or (ii) its sole purpose is 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. 
 (g)    “Code” means the Internal Revenue Code
of 1986, as amended. Reference to a specific section of the Code or regulation thereunder shall include such section or regulation, any valid regulation promulgated under such section, and any comparable provision of any future legislation or
regulation amending, supplementing or superseding such section or regulation. 

(h)    “Committee” means a committee of Directors or of other individuals satisfying
Applicable Laws appointed by the Board, or by a duly authorized committee of the Board, in accordance with Section 4 hereof. 

(i)    “Common Stock” means the common stock of the Company. 

(j)    “Company” means Ra Medical Systems, Inc., a Delaware corporation, or any
successor thereto. 
 (k)    “Consultant” means any natural person, including an
advisor, engaged by the Company or a Parent or Subsidiary to render bona fide services to such entity, provided the services (i) are not in connection with the offer or sale of securities in a capital-raising transaction, and (ii) do not
directly promote or maintain a market for the Company’s securities, in each case, within the meaning of Form S-8 promulgated under the Securities Act, and provided further, that a Consultant will include
only those persons to whom the issuance of Shares may be registered under Form S-8 promulgated under the Securities Act. 

(l)    “Director” means a member of the Board. 

(m)    “Disability” means total and permanent disability as defined in Code
Section 22(e)(3), provided that in the case of Awards other than Incentive Stock Options, the Administrator in its discretion may determine whether a permanent and total disability exists in accordance with uniform and non-discriminatory standards adopted by the Administrator from time to time. 

(n)    “Employee” means any person, including officers and Directors, employed by the
Company or any Parent or Subsidiary of the Company. Neither service as a Director nor payment of a director’s fee by the Company will be sufficient to constitute “employment” by the Company. 

(o)    “Exchange Act” means the Securities Exchange Act of 1934, as amended. 

(p)    “Exchange Program” means a program under which (i) outstanding Awards are
surrendered or cancelled in exchange for awards of the same type (which may have higher or 

  
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lower exercise prices and different terms), awards of a different type, and/or cash, (ii) Participants would have the opportunity to transfer any outstanding Awards to a financial
institution or other person or entity selected by the Administrator, and/or (iii) the exercise price of an outstanding Award is reduced or increased. The Administrator will determine the terms and conditions of any Exchange Program in its sole
discretion. 
 (q)    “Fair Market Value” means, as of any date, the value of Common
Stock determined as follows: 
 (i)    If the Common Stock is listed on any established stock exchange
or a national market system, including without limitation the Nasdaq Global Select Market, the Nasdaq Global Market or the Nasdaq Capital Market of The Nasdaq Stock Market, its Fair Market Value will be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system on the day of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; 

(ii)    If the Common Stock is regularly quoted by a recognized securities dealer but selling prices are
not reported, the Fair Market Value of a Share will be the mean between the high bid and low asked prices for the Common Stock on the day of determination (or, if no bids and asks were reported on that date, as applicable, on the last trading date
such bids and asks were reported), as reported in The Wall Street Journal or such other source as the Administrator deems reliable; or 

(iii)    In the absence of an established market for the Common Stock, the Fair Market Value will be
determined in good faith by the Administrator. 
 (r)    “Incentive Stock Option” means
an Option that by its terms qualifies and is otherwise intended to qualify as an incentive stock option within the meaning of Code Section 422 and the regulations promulgated thereunder. 

(s)    “Nonstatutory Stock Option” means an Option that by its terms does not qualify or
is not intended to qualify as an Incentive Stock Option. 
 (t)    “Option” means a
stock option granted pursuant to the Plan. 
 (u)    “Parent” means a “parent
corporation,” whether now or hereafter existing, as defined in Code Section 424(e). 

(v)    “Participant” means the holder of an outstanding Award. 

(w)    “Period of Restriction” means the period during which the transfer of Shares of
Restricted Stock are subject to restrictions and therefore, the Shares are subject to a substantial risk of forfeiture. Such restrictions may be based on the passage of time, the achievement of target levels of performance, or the occurrence of
other events as determined by the Administrator. 
 (x)    “Plan” means this 2018 Stock
Compensation Plan. 

  
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 (y)    “Restricted Stock” means Shares
issued pursuant to an Award of Restricted Stock under Section 8 of the Plan, or issued pursuant to the early exercise of an Option. 

(z)    “Restricted Stock Unit” means a bookkeeping entry representing an amount equal to
the Fair Market Value of one Share, granted pursuant to Section 9. Each Restricted Stock Unit represents an unfunded and unsecured obligation of the Company. 

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

(bb)    “Service Provider” means an Employee, Director or Consultant. 

(cc)    “Share” means a share of the Common Stock, as adjusted in accordance with
Section 13 of the Plan. 
 (dd)    “Stock Appreciation Right” means an Award,
granted alone or in connection with an Option, that pursuant to Section 7 is designated as a Stock Appreciation Right. 

(ee)    “Subsidiary” means a “subsidiary corporation,” whether now or hereafter
existing, as defined in Code Section 424(f). 

3.    Stock Subject to the 
Plan. 
 (a)    Stock Subject to the Plan. Subject to the provisions of Section 13 of the
Plan, the maximum aggregate number of Shares that may be subject to Awards and sold under the Plan is 3,300,000 Shares. The Shares may be authorized but unissued, or reacquired Common Stock. 

(b)    Lapsed Awards. If an Award expires or becomes unexercisable without having been exercised in
full, is surrendered pursuant to an Exchange Program, or, with respect to Restricted Stock or Restricted Stock Units, is forfeited to or repurchased by the Company due to the failure to vest, the unpurchased Shares (or for Awards other than Options
or Stock Appreciation Rights the forfeited or repurchased Shares) which were subject thereto will become available for future grant or sale under the Plan (unless the Plan has terminated). With respect to Stock Appreciation Rights, only Shares
actually issued pursuant to a Stock Appreciation Right will cease to be available under the Plan; all remaining Shares under Stock Appreciation Rights will remain available for future grant or sale under the Plan (unless the Plan has terminated).
Shares that have actually been issued under the Plan under any Award will not be returned to the Plan and will not become available for future distribution under the Plan; provided, however, that if Shares issued pursuant to Awards of Restricted
Stock or Restricted Stock Units are repurchased by the Company or are forfeited to the Company due to the failure to vest, such Shares will become available for future grant under the Plan. Shares used to pay the exercise price of an Award or to
satisfy the tax withholdings related to an Award will become available for future grant or sale under the Plan. To the extent an Award under the Plan is paid out in cash rather than Shares, such cash payment will not result in reducing the number of
Shares available for issuance under the Plan. Notwithstanding the foregoing and, subject to adjustment as provided in Section 13, the maximum number of Shares that may be issued upon the exercise of Incentive Stock Options will equal the
aggregate Share number stated in Section 3(a), plus, to the extent allowable under Code Section 422 and the Treasury Regulations promulgated thereunder, any Shares that become available for issuance under the Plan pursuant to
Section 3(b). 

  
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 (c)    Share Reserve. The Company, during the
term of this Plan, will at all times reserve and keep available such number of Shares as will be sufficient to satisfy the requirements of the Plan. 

4.    Administration of the Plan. 

(a)    Procedure. 

(i)    Multiple Administrative Bodies. Different Committees with respect to different groups of
Service Providers may administer the Plan. 
 (ii)    Other Administration. Other than as
provided above, the Plan will be administered by (A) the Board or (B) a Committee, which Committee will be constituted to satisfy Applicable Laws. 

(b)    Powers of the Administrator. Subject to the provisions of the Plan, and in the case of a
Committee, subject to the specific duties delegated by the Board to such Committee, the Administrator will have the authority, in its discretion: 

(i)    to determine the Fair Market Value; 

(ii)    to select the Service Providers to whom Awards may be granted hereunder; 

(iii)    to determine the number of Shares to be covered by each Award granted hereunder; 

(iv)    to approve forms of Award Agreements for use under the Plan; 

(v)    to determine the terms and conditions, not inconsistent with the terms of the Plan, of any Award
granted hereunder. Such terms and conditions include, but are not limited to, the exercise price, the time or times when Awards may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture
restrictions, and any restriction or limitation regarding any Award or the Shares relating thereto, based in each case on such factors as the Administrator will determine; 

(vi)    to institute and determine the terms and conditions of an Exchange Program; 

(vii)    to construe and interpret the terms of the Plan and Awards granted pursuant to the Plan; 

(viii)    to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and
regulations relating to sub-plans established for the purpose of satisfying applicable foreign laws or for qualifying for favorable tax treatment under applicable foreign laws; 

  
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 (ix)    to modify or amend each Award (subject to
Section 18(c) of the Plan), including but not limited to the discretionary authority to extend the post-termination exercisability period of Awards and to extend the maximum term of an Option (subject to Section 6(d)); 

(x)    to allow Participants to satisfy withholding tax obligations in a manner prescribed in
Section 14; 
 (xi)    to authorize any person to execute on behalf of the Company any instrument
required to effect the grant of an Award previously granted by the Administrator; 
 (xii)    to
temporarily suspend the exercisability of an Award if the Administrator deems such suspension to be necessary or appropriate for administrative purposes or to comply with Applicable Laws; 

(xiii)    to allow a Participant to defer the receipt of the payment of cash or the delivery of Shares
that otherwise would be due to such Participant under an Award; and 
 (xiv)    to make all other
determinations deemed necessary or advisable for administering the Plan. 
 (c)    Effect of
Administrator’s Decision. The Administrator’s decisions, determinations and interpretations will be final and binding on all Participants and any other holders of Awards and will be given the maximum deference
permitted by Applicable Laws. 
 5.    Eligibility. Nonstatutory Stock Options, Stock
Appreciation Rights, Restricted Stock, and Restricted Stock Units may be granted to Service Providers. Incentive Stock Options may be granted only to Employees. 

6.    Stock Options. 

(a)    Grant of Options. Subject to the terms and provisions of the Plan, the Administrator, at any
time and from time to time, may grant Options in such amounts as the Administrator, in its sole discretion, will determine. 

(b)    Option Agreement. Each Award of an Option will be evidenced by an Award Agreement that will
specify the exercise price, the term of the Option, the number of Shares subject to the Option, the exercise restrictions, if any, applicable to the Option, and such other terms and conditions as the Administrator, in its sole discretion, will
determine. 
 (c)    Limitations. Each Option will be designated in the Award Agreement as either
an Incentive Stock Option or a Nonstatutory Stock Option. Notwithstanding such designation, however, to the extent that the aggregate Fair Market Value of the Shares with respect to which Incentive Stock Options are exercisable for the first time by
the Participant during any calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds one hundred thousand dollars ($100,000), such Options will be treated as Nonstatutory Stock Options. For purposes of this
Section 6(c), Incentive Stock Options will be taken into account in the order in which they were granted, the Fair Market Value of the Shares will be determined as of the time the Option with 

  
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respect to such Shares is granted, and calculation will be performed in accordance with Code Section 422 and Treasury Regulations promulgated thereunder. 

(d)    Term of Option. The term of each Option will be stated in the Award Agreement; provided,
however, that the term will be no more than ten (10) years from the date of grant thereof. In the case of an Incentive Stock Option granted to a Participant who, at the time the Incentive Stock Option is granted, owns stock representing more
than ten percent (10%) of the total combined voting power of all classes of stock of the Company or any Parent or Subsidiary, the term of the Incentive Stock Option will be five (5) years from the date of grant or such shorter term as may be
provided in the Award Agreement. 
 (e)    Option Exercise Price and Consideration. 

(i)    Exercise Price. The per Share exercise price for the Shares to be issued pursuant to the
exercise of an Option will be determined by the Administrator, but will be no less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant. In addition, in the case of an Incentive Stock Option granted to an Employee
who owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the per Share exercise price will be no less than one hundred ten percent (110%) of the Fair Market Value
per Share on the date of grant. Notwithstanding the foregoing provisions of this Section 6(e)(i), Options may be granted with a per Share exercise price of less than one hundred percent (100%) of the Fair Market Value per Share on the date of
grant pursuant to a transaction described in, and in a manner consistent with, Code Section 424(a). 

(ii)    Waiting Period and Exercise Dates. At the time an Option is granted, the Administrator
will fix the period within which the Option may be exercised and will determine any conditions that must be satisfied before the Option may be exercised. 

(iii)    Form of Consideration. The Administrator will determine the acceptable form of
consideration for exercising an Option, including the method of payment. In the case of an Incentive Stock Option, the Administrator will determine the acceptable form of consideration at the time of grant. Such consideration may consist entirely
of: (1) cash; (2) check; (3) promissory note, to the extent permitted by Applicable Laws, (4) other Shares, provided that such Shares have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the
Shares as to which such Option will be exercised and provided further that accepting such Shares will not result in any adverse accounting consequences to the Company, as the Administrator determines in its sole discretion; (5) consideration
received by the Company under cashless exercise program (whether through a broker or otherwise) implemented by the Company in connection with the Plan; (6) by net exercise, (7) such other consideration and method of payment for the
issuance of Shares to the extent permitted by Applicable Laws, or (8) any combination of the foregoing methods of payment. In making its determination as to the type of consideration to accept, the Administrator will consider if acceptance of
such consideration may be reasonably expected to benefit the Company. 

  
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 (f)    Exercise of Option. 

(i)    Procedure for Exercise; Rights as a Stockholder. Any Option granted hereunder will be
exercisable according to the terms of the Plan and at such times and under such conditions as determined by the Administrator and set forth in the Award Agreement. An Option may not be exercised for a fraction of a Share. 

An Option will be deemed exercised when the Company receives: (i) notice of exercise (in such form as the Administrator
may specify from time to time) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised (together with applicable tax withholding). Full payment may consist of any
consideration and method of payment authorized by the Administrator and permitted by the Award Agreement and the Plan. Shares issued upon exercise of an Option will be issued in the name of the Participant or, if requested by the Participant, in the
name of the Participant and his or her spouse. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other
rights as a stockholder will exist with respect to the Shares subject to an Option, notwithstanding the exercise of the Option. The Company will issue (or cause to be issued) such Shares promptly after the Option is exercised. 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 13 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. 

(ii)    Termination of Relationship as a Service Provider. If a Participant ceases to be a Service
Provider, other than upon the Participant’s termination as the result of the Participant’s death or Disability, the Participant may exercise his or her Option within thirty (30) days of termination, or such longer period of time as is
specified in the Award Agreement (but in no event later than the expiration of the term of such Option as set forth in the Award Agreement) to the extent that the Option is vested on the date of termination. Unless otherwise provided by the
Administrator, if on the date of termination the Participant is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option will revert to the Plan. If after termination the Participant does not exercise his
or her Option within the time specified by the Administrator, the Option will terminate, and the Shares covered by such Option will revert to the Plan. 

(iii)    Disability of Participant. If a Participant ceases to be a Service Provider as a result
of the Participant’s Disability, the Participant may exercise his or her Option within six (6) months of termination, or such longer period of time as is specified in the Award Agreement (but in no event later than the expiration of the
term of such Option as set forth in the Award Agreement) to the extent the Option is vested on the date of termination. Unless otherwise provided by the Administrator, if on the date of termination the Participant is not vested as to his or her
entire Option, the Shares covered by the unvested portion of the Option will revert to the Plan. If after termination the Participant does not exercise his or her Option within the time specified herein, the Option will terminate, and the Shares
covered by such Option will revert to the Plan. 

  
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 (iv)    Death of Participant. If a Participant
dies while a Service Provider, the Option may be exercised within six (6) months following the Participant’s death, or within such longer period of time as is specified in the Award Agreement (but in no event later than the expiration of
the term of such Option as set forth in the Award Agreement) to the extent that the Option is vested on the date of death, by the Participant’s designated beneficiary, provided such beneficiary has been designated prior to the
Participant’s death in a form acceptable to the Administrator. If no such beneficiary has been designated by the Participant, then such Option may be exercised by the personal representative of the Participant’s estate or by the person(s)
to whom the Option is transferred pursuant to the Participant’s will or in accordance with the laws of descent and distribution. Unless otherwise provided by the Administrator, if at the time of death Participant is not vested as to his or her
entire Option, the Shares covered by the unvested portion of the Option will immediately revert to the Plan. If the Option is not so exercised within the time specified herein, the Option will terminate, and the Shares covered by such Option will
revert to the Plan. 
 7.    Stock Appreciation Rights. 

(a)    Grant of Stock Appreciation Rights. Subject to the terms and conditions of the Plan, a Stock
Appreciation Right may be granted to Service Providers at any time and from time to time as will be determined by the Administrator, in its sole discretion. 

(b)    Number of Shares. The Administrator will have complete discretion to determine the number of
Shares subject to any Award of Stock Appreciation Rights. 
 (c)    Exercise Price and Other
Terms. The per Share exercise price for the Shares that will determine the amount of the payment to be received upon exercise of a Stock Appreciation Right as set forth in Section 7(f) will be determined by the Administrator and will be no
less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant. Otherwise, the Administrator, subject to the provisions of the Plan, will have complete discretion to determine the terms and conditions of Stock
Appreciation Rights granted under the Plan. 
 (d)    Stock Appreciation Right Agreement. Each
Stock Appreciation Right grant will be evidenced by an Award Agreement that will specify the exercise price, the term of the Stock Appreciation Right, the conditions of exercise, and such other terms and conditions as the Administrator, in its sole
discretion, will determine. 
 (e)    Expiration of Stock Appreciation Rights. A Stock
Appreciation Right granted under the Plan will expire upon the date determined by the Administrator, in its sole discretion, and set forth in the Award Agreement. Notwithstanding the foregoing, the rules of Section 6(d) relating to the maximum
term and Section 6(f) relating to exercise also will apply to Stock Appreciation Rights. 

(f)    Payment of Stock Appreciation Right Amount. Upon exercise of a Stock Appreciation Right, a
Participant will be entitled to receive payment from the Company in an amount determined by multiplying: 

(i)    The difference between the Fair Market Value of a Share on the date of exercise over the exercise
price; times 

  
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 (ii)    The number of Shares with respect to which the
Stock Appreciation Right is exercised. 
 At the discretion of the Administrator, the payment upon Stock Appreciation Right
exercise may be in cash, in Shares of equivalent value, or in some combination thereof. 

8.    Restricted Stock. 

(a)    Grant of Restricted Stock. Subject to the terms and provisions of the Plan, the
Administrator, at any time and from time to time, may grant Shares of Restricted Stock to Service Providers in such amounts as the Administrator, in its sole discretion, will determine. 

(b)    Restricted Stock Agreement. Each Award of Restricted Stock will be evidenced by an Award
Agreement that will specify the Period of Restriction, the number of Shares granted, and such other terms and conditions as the Administrator, in its sole discretion, will determine. Unless the Administrator determines otherwise, the Company as
escrow agent will hold Shares of Restricted Stock until the restrictions on such Shares have lapsed. 

(c)    Transferability. Except as provided in this Section 8 or as the Administrator
determines, Shares of Restricted Stock may not be sold, transferred, pledged, assigned, or otherwise alienated or hypothecated until the end of the applicable Period of Restriction. 

(d)    Other Restrictions. The Administrator, in its sole discretion, may impose such other
restrictions on Shares of Restricted Stock as it may deem advisable or appropriate. 
 (e)    Removal
of Restrictions. Except as otherwise provided in this Section 8, Shares of Restricted Stock covered by each Restricted Stock grant made under the Plan will be released from escrow as soon as practicable after the last day of the Period of
Restriction or at such other time as the Administrator may determine. The Administrator, in its discretion, may accelerate the time at which any restrictions will lapse or be removed. 

(f)    Voting Rights. During the Period of Restriction, Service Providers holding Shares of
Restricted Stock granted hereunder may exercise full voting rights with respect to those Shares, unless the Administrator determines otherwise. 

(g)    Dividends and Other Distributions. During the Period of Restriction, Service Providers
holding Shares of Restricted Stock will be entitled to receive all dividends and other distributions paid with respect to such Shares, unless the Administrator provides otherwise. 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 Shares of Restricted Stock with respect to which they were paid. 

(h)    Return of Restricted Stock to Company. On the date set forth in the Award Agreement, the
Restricted Stock for which restrictions have not lapsed will revert to the Company and again will become available for grant under the Plan. 

  
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 9.    Restricted Stock Units. 

(a)    Grant. Restricted Stock Units may be granted at any time and from time to time as determined
by the Administrator. After the Administrator determines that it will grant Restricted Stock Units, it will advise the Participant in an Award Agreement of the terms, conditions, and restrictions related to the grant, including the number of
Restricted Stock Units. 
 (b)    Vesting Criteria and Other Terms. The Administrator will set
vesting criteria in its discretion, which, depending on the extent to which the criteria are met, will determine the number of Restricted Stock Units that will be paid out to the Participant. The Administrator may set vesting criteria based upon the
achievement of Company-wide, business unit, or individual goals (including, but not limited to, continued employment or service), or any other basis determined by the Administrator in its discretion. 

(c)    Earning Restricted Stock Units. Upon meeting the applicable vesting criteria, the
Participant will be entitled to receive a payout as determined by the Administrator. Notwithstanding the foregoing, at any time after the grant of Restricted Stock Units, the Administrator, in its sole discretion, may reduce or waive any vesting
criteria that must be met to receive a payout. 
 (d)    Form and Timing of Payment. Payment of
earned Restricted Stock Units will be made as soon as practicable after the date(s) determined by the Administrator and set forth in the Award Agreement. The Administrator, in its sole discretion, may settle earned Restricted Stock Units in cash,
Shares, or a combination of both. 
 (e)    Cancellation. On the date set forth in the Award
Agreement, all unearned Restricted Stock Units will be forfeited to the Company. 
 10.    Compliance
With Code Section 409A. Awards will be designed and operated in such a manner that they are either exempt from the application of, or comply with, the requirements of Code Section 409A such that the grant, payment,
settlement or deferral will not be subject to the additional tax or interest applicable under Code Section 409A, except as otherwise determined in the sole discretion of the Administrator. The Plan and each Award Agreement under the Plan is
intended to meet the requirements of Code Section 409A and will be construed and interpreted in accordance with such intent, except as otherwise determined in the sole discretion of the Administrator. To the extent that an Award or
payment, or the settlement or deferral thereof, is subject to Code Section 409A the Award will be granted, paid, settled or deferred in a manner that will meet the requirements of Code Section 409A, such that the grant, payment, settlement
or deferral will not be subject to the additional tax or interest applicable under Code Section 409A. In no event will the Company or any Parent or Subsidiary have any obligation under the terms of this Plan to reimburse a Participant for any
taxes or other costs that may be imposed on Participant as a result of Section 409A. 

11.    Leaves of Absence/Transfer Between Locations. Unless the Administrator provides otherwise,
vesting of Awards granted hereunder will be suspended during any unpaid leave of absence. A Participant will not cease to be an Employee in the case of (i) any leave of absence approved by the Company or (ii) transfers between locations of
the Company or between the 

  
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Company, its Parent, or any Subsidiary. For purposes of Incentive Stock Options, no such leave may exceed three (3) months, unless reemployment upon expiration of such leave is guaranteed by
statute or contract. If reemployment upon expiration of a leave of absence approved by the Company is not so guaranteed, then six (6) months following the first (1st) day of such leave, any
Incentive Stock Option held by the Participant will cease to be treated as an Incentive Stock Option and will be treated for tax purposes as a Nonstatutory Stock Option. 

12.    Limited Transferability of Awards. 

(a)    Unless determined otherwise by the Administrator, Awards may not be sold, pledged, assigned,
hypothecated, or otherwise transferred in any manner other than by will or by the laws of descent and distribution, and may be exercised, during the lifetime of the Participant, only by the Participant. If the Administrator makes an Award
transferable, such Award may only be transferred (i) by will, (ii) by the laws of descent and distribution, or (iii) as permitted by Rule 701 of the Securities Act. 

(b)    Further, until the Company becomes subject to the reporting requirements of Section 13 or
15(d) of the Exchange Act, or after the Administrator determines that it is, will, or may no longer be relying upon the exemption from registration under the Exchange Act as set forth in Rule 12h-1(f)
promulgated under the Exchange Act (the “Rule 12h-1(f) Exemption”), an Option, or prior to exercise, the Shares subject to the Option, may not be pledged, hypothecated or otherwise transferred or
disposed of, in any manner, including by entering into any short position, any “put equivalent position” or any “call equivalent position” (as defined in Rule 16a-1(h) and Rule 16a-1(b) of the Exchange Act, respectively), other than to (i) persons who are “family members” (as defined in Rule 701(c)(3) of the Securities Act) through gifts or domestic relations orders, or
(ii) to an executor or guardian of the Participant upon the death or disability of the Participant, in each case, to the extent required for continued reliance on the Rule 12h-1(f) Exemption.
Notwithstanding the foregoing sentence, the Administrator, in its sole discretion, may determine to permit transfers to the Company or in connection with a Change in Control or other acquisition transactions involving the Company to the extent
permitted by Rule 12h-1(f) or, if the Company is not relying on the Rule 12h-1(f) Exemption, to the extent permitted by the Plan. 

13.    Adjustments; Dissolution or Liquidation; Merger or Change in Control. 

(a)    Adjustments. In the event that any dividend or other distribution (whether in the form of
cash, Shares, other securities, or other property), recapitalization, stock split, reverse stock split, reorganization, merger, consolidation, split-up, spin-off,
combination, repurchase, or exchange of Shares or other securities of the Company, or other change in the corporate structure of the Company affecting the Shares occurs, the Administrator, in order to prevent diminution or enlargement of the
benefits or potential benefits intended to be made available under the Plan, will adjust the number and class of shares of stock that may be delivered under the Plan and/or the number, class, and price of shares of stock covered by each outstanding
Award. Further, the Administrator will make such adjustments to an Award as required by Section 25102(o) of the California Corporations Code to the extent the Company is relying upon the exemption afforded thereby with respect to the Award.


  
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 (b)    Dissolution or Liquidation. In the event
of the proposed dissolution or liquidation of the Company, the Administrator will notify each Participant as soon as practicable prior to the effective date of such proposed transaction. To the extent it has not been previously exercised, an Award
will terminate immediately prior to the consummation of such proposed action. 
 (c)    Merger or
Change in Control. In the event of a merger of the Company with or into another corporation or other entity or a Change in Control, each outstanding Award will be treated as the Administrator determines (subject to the provisions of the
following paragraph) without a Participant’s consent, including, without limitation, that (i) Awards will be assumed, or substantially equivalent awards will be substituted, by the acquiring or succeeding corporation (or an affiliate
thereof) with appropriate adjustments as to the number and kind of shares and prices; (ii) upon written notice to a Participant, that the Participant’s Awards will terminate upon or immediately prior to the consummation of such merger or
Change in Control; (iii) outstanding Awards will vest and become exercisable, realizable, or payable, or restrictions applicable to an Award will lapse, in whole or in part prior to or upon consummation of such merger or Change in Control, and,
to the extent the Administrator determines, terminate upon or immediately prior to the effectiveness of such merger or Change in Control; (iv) (A) the termination of an Award in exchange for an amount of cash and/or property, if any, equal to
the amount that would have been attained upon the exercise of such Award or realization of the Participant’s rights as of the date of the occurrence of the transaction (and, for the avoidance of doubt, if as of the date of the occurrence of the
transaction the Administrator determines in good faith that no amount would have been attained upon the exercise of such Award or realization of the Participant’s rights, then such Award may be terminated by the Company without payment), or
(B) the replacement of such Award with other rights or property selected by the Administrator in its sole discretion; or (v) any combination of the foregoing. In taking any of the actions permitted under this subsection 13(c), the
Administrator will not be obligated to treat all Awards, all Awards held by a Participant, or all Awards of the same type, similarly. 

In the event that the successor corporation does not assume or substitute for the Award (or portion thereof), the Participant
will fully vest in and have the right to exercise all of his or her outstanding Options and Stock Appreciation Rights, including Shares as to which such Awards would not otherwise be vested or exercisable, all restrictions on Restricted Stock and
Restricted Stock Units will lapse, and, with respect to Awards with performance-based vesting, all performance goals or other vesting criteria will be deemed achieved at one hundred percent (100%) of target levels and all other terms and conditions
met, in all cases, unless specifically provided otherwise under the applicable Award Agreement or other written agreement between the Participant and the Company or any of its Subsidiaries or Parents, as applicable. In addition, if an Option or
Stock Appreciation Right is not assumed or substituted in the event of a merger or Change in Control, the Administrator will notify the Participant in writing or electronically that the Option or Stock Appreciation Right will be exercisable for a
period of time determined by the Administrator in its sole discretion, and the Option or Stock Appreciation Right will terminate upon the expiration of such period. 

For the purposes of this subsection 13(c), an Award will be considered assumed if, following the merger or Change in Control,
the Award confers the right to purchase or receive, for each Share subject to the Award immediately prior to the merger or Change in Control, the consideration (whether stock, cash, or other securities or property) received in the merger or Change


  
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in Control by holders of Common Stock 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 merger or Change in Control is not solely common stock of the successor corporation or its Parent, the Administrator 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 payout of a Restricted Stock Unit, 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 merger or Change in Control. 

Notwithstanding anything in this Section 13(c) to the contrary, an Award that vests, is earned or paid-out upon the satisfaction of one or more performance goals will not be considered assumed if the Company or its successor modifies any of such performance goals without the Participant’s consent, in all
cases, unless specifically provided otherwise under the applicable Award Agreement or other written agreement between the Participant and the Company or any of its Subsidiaries or Parents, as applicable; provided, however, a modification to such
performance goals only to reflect the successor corporation’s post-Change in Control corporate structure will not be deemed to invalidate an otherwise valid Award assumption. 

Notwithstanding anything in this Section 13(c) to the contrary, and unless otherwise provided in an Award Agreement, if
an Award that vests is earned or paid-out under an Award Agreement is subject to Code Section 409A and if the change in control definition contained in the Award Agreement does not comply with the
definition of “change of control” for purposes of a distribution under Code Section 409A, then any payment of an amount that is otherwise accelerated under this Section will be delayed until the earliest time that such payment would
be permissible under Code Section 409A without triggering any penalties applicable under Code Section 409A. 

14.    Tax Withholding. 

(a)    Withholding Requirements. Prior to the delivery of any Shares or cash pursuant to an Award
(or exercise thereof), the Company will have the power and the right to deduct or withhold, or require a Participant to remit to the Company, an amount sufficient to satisfy federal, state, local, foreign or other taxes (including the
Participant’s FICA obligation) required to be withheld with respect to such Award (or exercise thereof). 

(b)    Withholding Arrangements. The Administrator, in its sole discretion and pursuant to such
procedures as it may specify from time to time, may permit a Participant to satisfy such tax withholding obligation, in whole or in part by such methods as the Administrator shall determine, including, without limitation, (i) paying cash,
(ii) electing to have the Company withhold otherwise deliverable Shares having a fair market value equal to the minimum statutory amount required to be withheld or such greater amount as the Administrator may determine if such amount would not
have adverse accounting consequences, as the Administrator determines in its sole discretion, (iii) delivering to the Company already-owned Shares having a fair market value equal to the statutory amount required to be withheld or such greater
amount as the Administrator may determine, in each case, provided the delivery of such Shares will not result in any adverse accounting consequences, as the Administrator determines in its sole discretion, (iv) selling a sufficient number of
Shares otherwise deliverable to the Participant through such means as the 

  
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Administrator may determine in its sole discretion (whether through a broker or otherwise) equal to the amount required to be withheld, or (v) any combination of the foregoing methods of
payment. The amount of the withholding requirement will be deemed to include any amount which the Administrator agrees may be withheld at the time the election is made, not to exceed the amount determined by using the maximum federal, state or local
marginal income tax rates applicable to the Participant with respect to the Award on the date that the amount of tax to be withheld is to be determined or such greater amount as the Administrator may determine if such amount would not have adverse
accounting consequences, as the Administrator determines in its sole discretion. The fair market value of the Shares to be withheld or delivered will be determined as of the date that the taxes are required to be withheld. 

15.    No Effect on Employment or Service. Neither the Plan nor any Award will confer upon a
Participant any right with respect to continuing the Participant’s relationship as a Service Provider with the Company or its Subsidiaries or Parents, as applicable, nor will they interfere in any way with the Participant’s right or the
right of the Company and its Subsidiaries or Parents, as applicable, to terminate such relationship at any time, with or without cause, to the extent permitted by Applicable Laws. 

16.    Date of Grant. The date of grant of an Award will be, for all purposes, the date on which
the Administrator makes the determination granting such Award, or such other later date as is determined by the Administrator. Notice of the determination will be provided to each Participant within a reasonable time after the date of such grant.

 17.    Term of Plan. Subject to Section 21 of the Plan, the Plan will become effective
upon its adoption by the Board. Unless sooner terminated under Section 18, it will continue in effect for a term of ten (10) years from the later of (a) the effective date of the Plan, or (b) the earlier of the most recent Board
or stockholder approval of an increase in the number of Shares reserved for issuance under the Plan. 

18.    Amendment and Termination of the Plan. 

(a)    Amendment and Termination. The Board may at any time amend, alter, suspend or terminate the
Plan. 
 (b)    Stockholder Approval. The Company will obtain stockholder approval of any Plan
amendment to the extent necessary and desirable to comply with Applicable Laws. 
 (c)    Effect of
Amendment or Termination. No amendment, alteration, suspension or termination of the Plan will impair the rights of any Participant, unless mutually agreed otherwise between the Participant and the Administrator, which agreement must be in
writing and signed by the Participant and the Company. Termination of the Plan will not affect the Administrator’s ability to exercise the powers granted to it hereunder with respect to Awards granted under the Plan prior to the date of such
termination. 
 19.    Conditions Upon Issuance of Shares. 

(a)    Legal Compliance. Shares will not be issued pursuant to the exercise of an Award unless the
exercise of such Award and the issuance and delivery of such Shares will comply 

  
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with Applicable Laws and will be further subject to the approval of counsel for the Company with respect to such compliance. 

(b)    Investment Representations. As a condition to the exercise of an Award, the Company may
require the person exercising such Award to represent and warrant at the time of any such exercise that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares if, in the opinion of
counsel for the Company, such a representation is required. 
 20.    Inability to Obtain
Authority. The inability of the Company to obtain authority from any regulatory body having jurisdiction or to complete or comply with the requirements of any registration or other qualification of the Shares under any state, federal or foreign
law or under the rules and regulations of the Securities and Exchange Commission, the stock exchange on which Shares of the same class are then listed, or any other governmental or regulatory body, which authority, registration, qualification or
rule compliance is deemed by the Company’s counsel to be necessary or advisable for the issuance and sale of any Shares hereunder, will relieve the Company of any liability in respect of the failure to issue or sell such Shares as to which such
requisite authority, registration, qualification or rule compliance will not have been obtained. 

21.    Stockholder Approval. The Plan will be subject to approval by the stockholders of the
Company within twelve (12) months after the date the Plan is adopted by the Board. Such stockholder approval will be obtained in the manner and to the degree required under Applicable Laws. 

22.    Information to Participants. If and as required (i) pursuant to Rule 701 of the
Securities Act, if the Company is relying on the exemption from registration provided pursuant to Rule 701 of the Securities Act with respect to the applicable Award, and/or (ii) pursuant to Rule 12h-1(f)
of the Exchange Act, to the extent the Company is relying on the Rule 12h-1(f) Exemption, then during the period of reliance on the applicable exemption and in each case of (i) and (ii) until such time as
the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, the Company shall provide to each Participant the information described in paragraphs (e)(3), (4), and (5) of Rule 701 under the
Securities Act not less frequently than every six (6) months with the financial statements being not more than 180 days old and with such information provided either by physical or electronic delivery to the Participants or by written notice to
the Participants of the availability of the information on an Internet site that may be password-protected and of any password needed to access the information. The Company may request that Participants agree to keep the information to be provided
pursuant to this section confidential. If a Participant does not agree to keep the information to be provided pursuant to this section confidential, then the Company will not be required to provide the information unless otherwise required pursuant
to Rule 12h-1(f)(1) under the Exchange Act (if the Company is relying on the Rule 12h-1(f) Exemption) or Rule 701 of the Securities Act (if the Company is relying on the
exemption pursuant to Rule 701 of the Securities Act). 
 23.    Forfeiture Events. The
Administrator may specify in an Award Agreement that the Participant’s rights, payments, and benefits with respect to an Award will be subject to reduction, cancellation, forfeiture, or recoupment upon the occurrence of certain specified
events, in addition to any otherwise applicable vesting or performance conditions of an Award. Notwithstanding any 

  
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provisions to the contrary under this Plan, an Award shall be subject to the Company’s clawback policy as may be established and/or amended from time to time (the “Clawback
Policy”). The Administrator may require a Participant to forfeit, return or reimburse the Company all or a portion of the Award and any amounts paid thereunder pursuant to the terms of the Clawback Policy or as necessary or appropriate to
comply with Applicable Laws. 

  
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 RA MEDICAL SYSTEMS, INC. 

2018 STOCK COMPENSATION PLAN 

STOCK OPTION AGREEMENT 

Unless otherwise defined herein, the terms defined in the 2018 Stock Compensation Plan (the “Plan”) shall have the
same defined meanings in this Stock Option Agreement (the “Option Agreement”). 
 I.    NOTICE OF STOCK OPTION GRANT

 Name: 

Address: 

The undersigned Participant has been granted an Option to purchase Common Stock of the Company, subject to the terms and
conditions of the Plan and this Option Agreement, as follows: 
  

					
			
		 	 Date of Grant:
	  	  

			
		 	 Vesting Commencement Date:
	  	  

			
		 	 Exercise Price per Share:
	  	 $

			
		 	 Total Number of Shares Granted:
	  	  

			
		 	 Total Exercise Price :
	  	 $

			
		 	 Type of Option:
	  	            Incentive Stock Option

			
		 		  	            Nonstatutory Stock Option

			
		 	 Term/Expiration Date:
	  	  


 [Prior to the Date of Grant, the Company informed Participant that it intended that
Participant may be granted certain equity interests in the Company (including, but not limited to, a stock option to purchase shares of the Company’s Common Stock) (the “Promised Equity”). Participant acknowledges and agrees that the
grant of this Option satisfies any and all obligations the Company may have with respect to the Promised Equity. Participant hereby irrevocably releases, waives, acquits and forever discharges any right or entitlement to the Promised Equity and any
and all claims, liabilities or causes of action of any kind or nature whatsoever, arising out of or in any way related to the Promised Equity, and Participant hereby disclaims any interest in the Promised Equity.] 












 Vesting Schedule: 

Subject to any acceleration provisions contained in the Plan or set forth below, this Option shall be exercisable, in whole or
in part, according to the following vesting schedule: 
 [INITIAL GRANTS:
One-third (1/3) of the Shares subject to the Option shall vest on the one (1) year anniversary of the Vesting Commencement Date, and one thirty-sixth
(1/36th) of the Shares subject to the Option shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day
of the month), subject to Participant continuing to be a Service Provider through each such date.] 
 [NEW HIRES:
Twenty-five percent (25%) of the Shares subject to the Option shall vest on the one (1) year anniversary of the Vesting Commencement Date, and one forty-eighth (1/48th) of the Shares subject
to the Option shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to Participant continuing to be a Service Provider through
each such date.] 
 [NON-NEW HIRES: One forty-eighth (1/48th) of the Shares subject to the Option shall vest each month following the Vesting Commencement Date on the same day of the month as the Vesting Commencement Date (and if there is no corresponding
day, on the last day of the month), subject to Participant continuing to be a Service Provider through each such date.] 

Termination Period: 

This Option shall be exercisable for [three (3) months] after Participant ceases to be a Service Provider, unless such
termination is due to Participant’s death or Disability, in which case this Option shall be exercisable for [twelve (12) months] after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may
this Option be exercised after the Term/Expiration Date as provided above and this Option may be subject to earlier termination as provided in Section 13 of the Plan. 

II.    AGREEMENT 

1.    Grant of Option. The Administrator of the Company hereby grants to the Participant named in
the Notice of Stock Option Grant in Part I of this Option Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the exercise price per Share set
forth in the Notice of Stock Option Grant (the “Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 18 of the Plan, in the event of a conflict between
the terms and conditions of the Plan and this Option Agreement, the terms and conditions of the Plan shall prevail. 
 If
designated in the Notice of Stock Option Grant as an Incentive Stock Option (“ISO”), this Option is intended to qualify as an Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds
the $100,000 rule of Code Section 422(d), this Option shall be treated as a Nonstatutory Stock Option (“NSO”). Further, if for any reason this Option (or portion thereof) shall not qualify as an ISO, then, to the extent of such
nonqualification, such Option (or portion thereof) shall be regarded as a NSO granted under the Plan. In no event 

  
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shall the Administrator, the Company or any Parent or Subsidiary or any of their respective employees or directors have any liability to Participant (or any other person) due to the failure of
the Option to qualify for any reason as an ISO. 
 2.    Exercise of Option. 

(a)    Right to Exercise. This Option shall be exercisable during its term in accordance with the
Vesting Schedule set out in the Notice of Stock Option Grant and with the applicable provisions of the Plan and this Option Agreement. 

(b)    Method of Exercise. This Option shall be exercisable by delivery of an exercise notice in
the form attached as Exhibit A (the “Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which shall state the election to exercise the Option, the number of Shares
with respect to which the Option is being exercised (the “Exercised Shares”), and such other representations and agreements as may be required by the Company. The Exercise Notice shall be accompanied by payment of the aggregate Exercise
Price as to all Exercised Shares, together with any applicable tax withholding. This Option shall be deemed to be exercised upon receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price, together with
any applicable tax withholding. 
 No Shares shall be issued pursuant to the exercise of an Option unless such issuance and
such exercise comply with Applicable Laws. Assuming such compliance, for income tax purposes the Shares shall be considered transferred to Participant on the date on which the Option is exercised with respect to such Shares. 

3.    Participant’s Representations. In the event the Shares have not been registered under
the Securities Act of 1933, as amended (the “Securities Act”), at the time this Option is exercised, Participant shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company
his or her Investment Representation Statement in the form attached hereto as Exhibit B. 

4.    Lock-Up Period. Participant hereby agrees that
Participant shall not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or
indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other
securities) of the Company held by Participant (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred and eighty
(180) days following the date of the final prospectus of the Company filed under the Securities Act (or such other period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on (i) the publication
or other distribution of research reports and (ii) analyst recommendations and opinions, including, but not limited to, the restrictions contained in NYSE Rule 472(f)(4), or any successor provisions or amendments thereto). 

Participant agrees to execute and deliver such other agreements as may be reasonably requested by the Company or the
underwriter which are consistent with the foregoing or which are 

  
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necessary to give further effect thereto. In addition, if requested by the Company or the representative of the underwriters of Common Stock (or other securities) of the Company, Participant
shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of any public offering of the Company’s securities pursuant to a registration
statement filed under the Securities Act. The obligations described in this Section 4 shall not apply to a registration relating solely to employee benefit plans on Form S-1 or Form S-8 or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be
promulgated in the future. The Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred and eighty (180) day (or other)
period. Participant agrees that any transferee of the Option or shares acquired pursuant to the Option shall be bound by this Section 4. 

5.    Method of Payment. Payment of the aggregate Exercise Price shall be by any of the following,
or a combination thereof, at the election of the Participant: 
 (a)    cash; 

(b)    check; 

(c)    consideration received by the Company under a formal cashless exercise program adopted by the
Company in connection with the Plan; or 
 (d)    surrender of other Shares which (i) shall be
valued at its Fair Market Value on the date of exercise, and (ii) must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in
any adverse accounting consequences to the Company. 
 6.    Restrictions on Exercise. This
Option may not be exercised until such time as the Plan has been approved by the stockholders of the Company, or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute a violation
of any Applicable Law. 
 7.    Non-Transferability of
Option. 
 (a)    This Option may not be transferred in any manner otherwise than by will or by the
laws of descent or distribution and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of
Participant. 
 (b)    Further, until the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Exchange Act, or after the Administrator determines that it is, will, or may no longer be relying upon the exemption from registration of Options under the Exchange Act as set forth in Rule 12h-1(f) promulgated under the Exchange Act (the “Reliance End Date”), Participant shall not transfer this Option or, prior to exercise, the Shares subject to this Option, in any manner other than
(i) to persons who are “family members” (as defined in Rule 701(c)(3) of the Securities Act) through gifts or domestic relations orders, or (ii) to an executor or guardian of Participant upon


  
 -4- 













 
the death or disability of Participant. Until the Reliance End Date, the Options and, prior to exercise, the Shares subject to this Option, may not be pledged, hypothecated or otherwise
transferred or disposed of, including by entering into any short position, any “put equivalent position” or any “call equivalent position” (as defined in Rule 16a-1(h) and Rule 16a-1(b) of the Exchange Act, respectively), other than as permitted in clauses (i) and (ii) of this paragraph. 

8.    Term of Option. This Option may be exercised only within the term set out in the Notice of
Stock Option Grant, and may be exercised during such term only in accordance with the Plan and the terms of this Option Agreement. 

9.    Tax Obligations. 

(a)    Tax Withholding. Participant agrees to make appropriate arrangements with the Company (or the
Parent or Subsidiary employing or retaining Participant) for the satisfaction of all Federal, state, local and foreign income and employment tax withholding requirements applicable to the Option exercise. Participant acknowledges and agrees that the
Company may refuse to honor the exercise and refuse to deliver the Shares if such withholding amounts are not delivered at the time of exercise. 

(b)    Notice of Disqualifying Disposition of ISO Shares. If the Option granted to Participant
herein 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, or (ii) the date one (1) year after
the date of exercise, 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.

 (c)    Code Section 409A. Under Code Section 409A, an Option that
vests after December 31, 2004 (or that vested on or prior to such date but which was materially modified after October 3, 2004) that was granted with a per Share exercise price that is determined by the Internal Revenue Service (the
“IRS”) to be less than the Fair Market Value of a Share on the date of grant (a “discount option”) may be considered “deferred compensation.” An Option that is a “discount option” may result in (i) income
recognition by Participant prior to the exercise of the Option, (ii) an additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest charges. The “discount option” may also result in additional
state income, penalty and interest tax to the Participant. Participant acknowledges that the Company cannot and has not guaranteed that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair Market Value of a
Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option was granted with a per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant shall
be solely responsible for Participant’s costs related to such a determination. 
 10.    Entire
Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and this Option Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior
undertakings and agreements of the Company and Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and


  
 -5- 













 
Participant. This Option Agreement is governed by the internal substantive laws but not the choice of law rules of California. 

11.    No Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF
SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS
OPTION OR ACQUIRING SHARES HEREUNDER. PARTICIPANT FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED
ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) TO
TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE. 
 Participant
acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts this Option subject to all of the terms and provisions thereof. Participant has reviewed the Plan and this
Option in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Option and fully understands all provisions of the Option. Participant hereby agrees to accept as binding, conclusive and final all decisions or
interpretations of the Administrator upon any questions arising under the Plan or this Option. Participant further agrees to notify the Company upon any change in the residence address indicated below. 

 

					
	 PARTICIPANT
	 		  	 RA MEDICAL SYSTEMS, INC.

			
	  

Signature
	 		  	  
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 EXHIBIT A 

2018 STOCK COMPENSATION PLAN 

EXERCISE NOTICE 
 Ra
Medical Systems, Inc. 
 2070 Las Palmas Drive 

Carlsbad, California 92011 

Attention: [Title] 

1.    Exercise of Option. Effective as of today,
                    ,             , the undersigned (“Participant”) hereby
elects to exercise Participant’s option (the “Option”) to purchase              shares of the Common Stock (the “Shares”) of Ra Medical Systems, Inc. (the
“Company”) under and pursuant to the 2018 Stock Compensation Plan (the “Plan”) and the Stock Option Agreement dated
                    ,              (the “Option Agreement”). 

2.    Delivery of Payment. Participant herewith delivers to the Company the full purchase price of
the Shares, as set forth in the Option Agreement, and any and all withholding taxes due in connection with the exercise of the Option. 

3.    Representations of Participant. Participant acknowledges that Participant has received, read
and understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and conditions. 

4.    Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate
entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Common Stock subject to an Award, notwithstanding
the exercise of the Option. The Shares shall be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date
is prior to the date of issuance except as provided in Section 13 of the Plan. 

5.    Company’s Right of First Refusal. Before any Shares held by Participant or
any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its assignee(s) shall have a right of first refusal to
purchase the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 

(a)    Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written
notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser or other transferee (“Proposed Transferee”); (iii) the
number of Shares to be transferred to each Proposed Transferee; 












 
and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the
Offered Price to the Company or its assignee(s). 
 (b)    Exercise of Right of First Refusal. At
any time within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred to any one or
more of the Proposed Transferees, at the purchase price determined in accordance with subsection (c) below. 

(c)    Purchase Price. The purchase price (“Purchase Price”) for the Shares purchased by
the Company or its assignee(s) under this Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of the non-cash consideration shall
be determined by the Board of Directors of the Company in good faith. 
 (d)    Payment. Payment
of the Purchase Price shall be made, at the option of the Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee,
to the assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 

(e)    Holder’s Right to Transfer. If all of the 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 5, then the Holder may sell or otherwise transfer such Shares to that Proposed Transferee at the Offered Price or at
a higher price, provided that such sale or other transfer is consummated within one hundred and twenty (120) days after the date of the Notice, that any such sale or other transfer is effected in accordance with any applicable securities
laws and that the Proposed Transferee agrees in writing that the provisions of this Section 5 shall continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice are not transferred to the
Proposed Transferee within such period, a new Notice shall be given to the Company, and the Company and/or its assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred.

 (f)    Exception for Certain Family Transfers. Anything to the contrary contained in this
Section 5 notwithstanding, the transfer of any or all of the Shares during the Participant’s lifetime or on the Participant’s death by will or intestacy to the Participant’s immediate family or a trust for the benefit of the
Participant’s immediate family shall be exempt from the provisions of this Section 5. “Immediate Family” as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother or sister. In such case, the
transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions of this Section 5, and there shall be no further transfer of such Shares except in accordance with the terms of this Section 5. 

(g)    Termination of Right of First Refusal. The Right of First Refusal shall terminate as to any
Shares upon the earlier of (i) the first sale of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor corporation has equity securities that are publicly traded. 

  
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 6.    Tax Consultation. Participant understands
that Participant may suffer adverse tax consequences as a result of Participant’s purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant deems advisable in connection
with the purchase or disposition of the Shares and that Participant is not relying on the Company for any tax advice. 

7.    Restrictive Legends and Stop-Transfer Orders. 

(a)    Legends. Participant understands and agrees that the Company shall cause the legends set
forth below or legends substantially equivalent thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required by the Company or by state or federal securities laws: 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT
BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN
COMPLIANCE THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A
RIGHT OF FIRST REFUSAL HELD BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE 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 TRANSFER
RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 THE SHARES REPRESENTED BY THIS
CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE
SHARES AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 

(b)    Stop-Transfer Notices. Participant agrees that, in order to ensure compliance with the
restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect
in its own records. 
 (c)    Refusal to Transfer. The Company shall 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 

  
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this Exercise Notice 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 shall have been so
transferred. 
 8.    Successors and Assigns. The Company may assign any of its rights under this
Exercise Notice to single or multiple assignees, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth, this Exercise Notice shall be binding upon
Participant and his or her heirs, executors, administrators, successors and assigns. 

9.    Interpretation. Any dispute regarding the interpretation of this Exercise Notice shall be
submitted by Participant or by the Company forthwith to the Administrator, which shall review such dispute at its next regular meeting. The resolution of such a dispute by the Administrator shall be final and binding on all parties. 

10.    Governing Law; Severability. This Exercise Notice is governed by the internal substantive
laws, but not the choice of law rules, of California. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in full force and
effect. 
 11.    Entire Agreement. The Plan and Option Agreement are incorporated herein by
reference. This Exercise Notice, the Plan, the Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior
undertakings and agreements of the Company and Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 

 

							
	 Submitted by:
	 		 		 	 Accepted by:

	 PARTICIPANT
	 		 		 	 RA MEDICAL SYSTEMS, INC.

				
	  

Signature
	 		 		 	  

By

				
	  
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	 		 		 	 Address:

				
	  
	 		 		 	  

				
	  
	 		 		 	  

				
		 		 		 	  
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 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
			
	 PARTICIPANT
	 	 :
	  	
			
	 COMPANY
	 	 :
	  	 RA MEDICAL SYSTEMS, INC.

			
	 SECURITY
	 	 :
	  	 COMMON STOCK

			
	 AMOUNT
	 	 :
	  	
			
	 DATE
	 	 :
	  	

 In connection with the purchase of the above-listed Securities, the undersigned Participant
represents to the Company the following: 
 (a)    Participant is aware of the Company’s business
affairs and financial condition and has acquired sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Securities. Participant is acquiring these Securities for investment for Participant’s own
account only and not with a view to, or for resale in connection with, any “distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). 

(b)    Participant acknowledges and understands that the Securities constitute “restricted
securities” under the Securities Act and have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of Participant’s investment
intent as expressed herein. In this connection, Participant understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be unavailable if Participant’s representation was predicated solely
upon a present intention to hold these Securities for the minimum capital gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in the market price of the Securities, or for a period of one
(1) year or any other fixed period in the future. Participant further understands that the Securities must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration is
available. Participant further acknowledges and understands that the Company is under no obligation to register the Securities. Participant understands that the certificate evidencing the Securities shall be imprinted with any legend required under
applicable state securities laws. 
 (c)    Participant is familiar with the provisions of Rule 701
and Rule 144, each promulgated under the Securities Act, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a
non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Option to Participant, the
exercise shall be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements 












 
of Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off
agreement may require) the Securities exempt under Rule 701 may be resold, subject to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates (1) the availability of certain public
information about the Company, (2) the amount of Securities being sold during any three (3) month period not exceeding specified limitations, (3) the resale being made in an unsolicited “broker’s transaction”,
transactions directly with a “market maker” or “riskless principal transactions” (as those terms are defined under the Securities Exchange Act of 1934) and (4) the timely filing of a Form 144, if applicable. 

In the event that the Company does not qualify under Rule 701 at the time of grant of the Option, then the Securities may
be resold in certain limited circumstances subject to the provisions of Rule 144, which may require (i) the availability of current public information about the Company; (ii) the resale to occur more than a specified period after the
purchase and full payment (within the meaning of Rule 144) for the Securities; and (iii) in the case of the sale of Securities by an affiliate, the satisfaction of the conditions set forth in sections (2), (3) and (4) of the
paragraph immediately above. 
 (d)    Participant further understands that in the event all of the
applicable requirements of Rule 701 or 144 are not satisfied, registration under the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and that, notwithstanding the fact that Rules 144
and 701 are not exclusive, the Staff of the Securities and Exchange Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to Rules 144 or
701 shall have a substantial burden of proof in establishing that an exemption from registration is available for such offers or sales, and that such persons and their respective brokers who participate in such transactions do so at their own risk.
Participant understands that no assurances can be given that any such other registration exemption shall be available in such event. 
  

	
	 PARTICIPANT

	
	  

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 RA MEDICAL SYSTEMS, INC. 

2018 STOCK COMPENSATION PLAN 

RESTRICTED STOCK UNIT AWARD AGREEMENT 

Unless otherwise defined herein, the terms defined in the 2018 Stock Compensation Plan (the “Plan”) shall have the
same defined meanings in this Restricted Stock Unit Award Agreement (the “Award Agreement”). 
 I.    NOTICE OF GRANT OF
RESTRICTED STOCK UNITS 
  

	 	Name:            	 «Name» 



	 	Address:    	 



The undersigned Participant has been granted the right to receive an Award of Restricted Stock Units, subject to the terms and
conditions of the Plan and this Award Agreement, as follows: 
 Date of
Grant:                                        
            «GrantDate» 
 Number of Restricted Stock
Units:                    «Shares» 

Quarterly Vesting
Dates:                                    March 1, June 1,
September 1, and December 1 
 [Prior to the Date of Grant, the Company informed Participant that it intended that
Participant may be granted certain equity interests in the Company (including, but not limited to, a stock option to purchase shares of the Company’s Common Stock) (the “Promised Equity”). Participant acknowledges and agrees that the
grant of this Award of Restricted Stock Units satisfies any and all obligations the Company may have with respect to the Promised Equity. Participant hereby irrevocably releases, waives, acquits and forever discharges any right or entitlement to the
Promised Equity and any and all claims, liabilities or causes of action of any kind or nature whatsoever, arising out of or in any way related to the Promised Equity, and Participant hereby disclaims any interest in the Promised Equity.] 

Vesting Commencement Date: 

The “Vesting Commencement Date” means the first date following the expiration of the
Lock-Up Period (as defined in Section 5 of Part II of the Award Agreement) following an Initial Public Offering (as defined below), subject to Participant continuing to be a Service Provider through such
date. “Initial Public Offering” means the consummation of the first firm commitment underwritten public offering pursuant to an effective registration statement on Form S-1 filed with the Securities
and Exchange Commission covering the offer and sale by the Company of its equity securities, as a result of or following which the Company’s Common Stock shall be publicly held. 












 Vesting Schedule: 

Subject to any acceleration provisions contained in the Plan or set forth below, the Restricted Stock Units shall vest in
accordance with the following schedule: 
 [Twenty-five percent (25%) of the Restricted Stock Units shall vest each
Quarterly Vesting Date following the Vesting Commencement Date, subject to Participant continuing to be a Service Provider through each applicable vesting date. Notwithstanding anything to the contrary herein, in the event of a Change in Control, one-hundred percent (100%) of the Restricted Stock Units shall immediately become fully vested, subject to Participant continuing to be a Service Provider through the Change in Control.] 

In the event Participant ceases to be a Service Provider for any or no reason before Participant vests in the Restricted Stock
Units, the Restricted Stock Units and Participant’s right to acquire any Shares hereunder will immediately terminate. 

II.    AGREEMENT 

1.    Grant of Restricted Stock Units. The Company hereby grants to the individual
(“Participant”) named in the Notice of Grant of Restricted Stock Units in Part I of this Award Agreement (the “Notice of Grant”) under the Plan an Award of Restricted Stock Units, subject to all of the terms and conditions in
this Award Agreement and the Plan, which is incorporated herein by reference. Subject to Section 18(c) of the Plan, in the event of a conflict between the terms and conditions of the Plan and this Award Agreement, the terms and conditions of
the Plan shall prevail. 
 2.    Company’s Obligation to Pay. Each Restricted Stock Unit
represents the right to receive a Share on the date it vests. Unless and until the Restricted Stock Units will have vested in the manner set forth in Section 4, Participant will have no right to payment of any such Restricted Stock Units. Prior
to actual payment of any vested Restricted Stock Units, such Restricted Stock Unit will represent an unsecured obligation of the Company, payable (if at all) only from the general assets of the Company. 

3.    Participant’s Representations. In the event the Shares have not been registered under
the Securities Act of 1933, as amended (the “Securities Act”) at the time the Restricted Stock Units are paid to Participant, Participant shall, if required by the Company, concurrently with the receipt of all or any portion of this
Restricted Stock Unit Award, deliver to the Company his or her Investment Representation Statement in the form attached hereto as Exhibit A. 

4.    Vesting Schedule. Except as provided in Section 6, and subject to Section 7, the
Restricted Stock Units awarded by this Award Agreement will vest in accordance with the vesting schedule set forth in the Notice of Grant, subject to Participant continuing to be a Service Provider through each applicable vesting date. 

5.    Lock-Up Period. Participant hereby agrees that
Participant shall not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or
indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging 

  
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or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other securities) of the Company held by Participant
(other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred and eighty (180) days following the date of the
final prospectus of the Company filed under the Securities Act (or such other period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on (i) the publication or other distribution of research reports
and (ii) analyst recommendations and opinions, including, but not limited to, the restrictions contained in NASD Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any successor provisions or amendments thereto) (such period, the “Lock-Up Period”). 
 Participant agrees to execute and deliver such other
agreements as may be reasonably requested by the Company or the underwriter which are consistent with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative of the
underwriters of Common Stock (or other securities) of the Company, Participant shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of
any public offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations described in this Section 5 shall not apply to a registration relating solely to employee benefit plans on
Form S-1 or Form S-8 or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the foregoing restriction
until the end of said one hundred and eighty (180) day (or other) period. Participant agrees that any transferee of the Restricted Stock Unit Award or Shares acquired pursuant to the Restricted Stock Unit Award shall be bound by this
Section 5. 
 6.    Payment after Vesting. 

(a)    General Rule. Subject to Section 10, any Restricted Stock Units that vest will be paid
to Participant (or in the event of Participant’s death, to his or her properly designated beneficiary or estate) in whole Shares. Subject to the provisions of Section 6(b), such vested Restricted Stock Units shall be paid in whole Shares
as soon as practicable after vesting, but in each such case within sixty (60) days following the vesting date. In no event will Participant be permitted, directly or indirectly, to specify the taxable year of payment of any Restricted Stock
Units payable under this Award Agreement. 
 (b)    Acceleration. 

(i)    Discretionary Acceleration. The Administrator, in its discretion, may accelerate the vesting
of the balance, or some lesser portion of the balance, of the unvested Restricted Stock Units at any time, subject to the terms of the Plan. If so accelerated, such Restricted Stock Units will be considered as having vested as of the date specified
by the Administrator. If Participant is a U.S. taxpayer, the payment of Shares vesting pursuant to this Section 6(b) shall in all cases be paid at a time or in a manner that is exempt from, or complies with, Section 409A. The prior
sentence may be superseded in a future agreement or amendment to this Award Agreement only by direct and specific reference to such sentence. 

  
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 (ii)    Notwithstanding anything in the Plan or this
Award Agreement or any other agreement (whether entered into before, on or after the Date of Grant), if the vesting of the balance, or some lesser portion of the balance, of the Restricted Stock Units is accelerated in connection with
Participant’s termination as a Service Provider (provided that such termination is a “separation from service” within the meaning of Section 409A, as determined by the Company), other than due to Participant’s death, and if
(x) Participant is a U.S. taxpayer and a “specified employee” within the meaning of Section 409A at the time of such termination as a Service Provider and (y) the payment of such accelerated Restricted Stock Units will
result in the imposition of additional tax under Section 409A if paid to Participant on or within the six (6) month period following Participant’s termination as a Service Provider, then the payment of such accelerated Restricted
Stock Units will not be made until the date six (6) months and one (1) day following the date of Participant’s termination as a Service Provider, unless Participant dies following his or her termination as a Service Provider, in which
case, the Restricted Stock Units will be paid in Shares to Participant’s estate as soon as practicable following his or her death. 

(c)    Section 409A. It is the intent of this Award Agreement that it and all payments and benefits
to U.S. taxpayers hereunder be exempt from, or comply with, the requirements of Section 409A so that none of the Restricted Stock Units provided under this Award Agreement or Shares issuable thereunder will be subject to the additional tax
imposed under Section 409A, and any ambiguities herein will be interpreted to be so exempt or so comply. Each payment payable under this Award Agreement is intended to constitute a separate payment for purposes of Treasury Regulation Section 1.409A-2(b)(2). However, in no event will the Company reimburse Participant, or be otherwise responsible for, any taxes or costs that may be imposed on Participant as a result of Section 409A. For
purposes of this Award Agreement, “Section 409A” means Section 409A of the Code, and any final Treasury Regulations and Internal Revenue Service guidance thereunder, as each may be amended from time to time. 

7.    Forfeiture Upon Termination as a Service Provider. Notwithstanding any contrary provision of
this Award Agreement, if Participant ceases to be a Service Provider for any or no reason, the then-unvested Restricted Stock Units awarded by this Award Agreement will thereupon be forfeited at no cost to the Company and Participant will have no
further rights thereunder. 
 8.    Tax Consequences. Participant has reviewed with his or her
own tax advisors the U.S. federal, state, local and non-U.S. tax consequences of this investment and the transactions contemplated by this Award Agreement. With respect to such matters, Participant relies
solely on such advisors and not on any statements or representations of the Company or any of its agents, written or oral. Participant understands that Participant (and not the Company) shall be responsible for Participant’s own tax liability
that may arise as a result of this investment or the transactions contemplated by this Award Agreement. 

9.    Death of Participant. Any distribution or delivery to be made to Participant under this Award
Agreement will, if Participant is then deceased, be made to Participant’s designated beneficiary, or if no beneficiary survives Participant, the administrator or executor of Participant’s estate. Any such transferee must furnish the
Company with (a) written notice of his or her status as transferee, and (b) evidence satisfactory to the Company to establish the validity of the transfer and compliance with any laws or regulations pertaining to said transfer. 

  
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 10.    Tax Obligations 

(a)    Responsibility for Taxes. Participant acknowledges that, regardless of any action taken by
the Company or, if different, Participant’s employer (the “Employer”), the ultimate liability for any tax and/or social insurance liability obligations and requirements in connection with the Restricted Stock Units, including, without
limitation, (i) all federal, state, and local taxes (including the Participant’s Federal Insurance Contributions Act (FICA) obligation) that are required to be withheld by the Company or the Employer or other payment of tax-related items related to Participant’s participation in the Plan and legally applicable to Participant, (ii) the Participant’s and, to the extent required by the Company (or Employer), the
Company’s (or Employer’s) fringe benefit tax liability, if any, associated with the grant, vesting, or settlement of the Restricted Stock Units or sale of Shares, and (iii) any other Company (or Employer) taxes the responsibility for
which the Participant has, or has agreed to bear, with respect to the Restricted Stock Units (or settlement thereof or issuance of Shares thereunder) (collectively, the “Tax Obligations”), is and remains Participant’s responsibility
and may exceed the amount actually withheld by the Company or the Employer. Participant further acknowledges that the Company and/or the Employer (i) make no representations or undertakings regarding the treatment of any Tax Obligations in
connection with any aspect of the Restricted Stock Units, including, but not limited to, the grant, vesting or settlement of the Restricted Stock Units, the subsequent sale of Shares acquired pursuant to such settlement and the receipt of any
dividends or other distributions, and (ii) do not commit to and are under no obligation to structure the terms of the grant or any aspect of the Restricted Stock Units to reduce or eliminate Participant’s liability for Tax Obligations or
achieve any particular tax result. Further, if Participant is subject to Tax Obligations in more than one jurisdiction between the Date of Grant and the date of any relevant taxable or tax withholding event, as applicable, Participant acknowledges
that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax Obligations in more than one jurisdiction. If Participant fails to make satisfactory arrangements for the payment of any required
Tax Obligations hereunder at the time of the applicable taxable event, Participant acknowledges and agrees that the Company may refuse to issue or deliver the Shares. 

(b)    Tax Withholding and Default
Sell-to-Cover Method of Tax Withholding. When Shares are issued as payment for vested Restricted Stock Units, Participant generally will recognize immediate U.S.
taxable income if Participant is a U.S. taxpayer. If Participant is a non-U.S. taxpayer, Participant will be subject to applicable taxes in his or her jurisdiction. Subject to Section 10(c), the minimum
amount of Tax Obligations which the Company determines must be withheld with respect to this Award (“Tax Withholding Obligation”) will be satisfied by Shares being sold on Participant’s behalf at the prevailing market price pursuant
to such procedures as the Company may specify from time to time, including through a broker-assisted arrangement (it being understood that the Shares to be sold must have vested pursuant to the terms of this Award Agreement and the Plan) (the “Sell-to-Cover Method”). The proceeds from the Sell-to-Cover Method will be used to
satisfy Participant’s Tax Withholding Obligation arising with respect to this Award. In addition to Shares sold to satisfy the Tax Withholding Obligation, additional Shares will be sold to satisfy any associated broker or other fees. Only whole
Shares will be sold through the Sell-to-Cover Method to satisfy any Tax Withholding Obligation and any associated broker or other fees. Any proceeds from the sale of
Shares in excess of the Tax Withholding Obligation and any associated broker or other fees generated through the Sell-to-Cover Method will be paid to


  
 5 













 
Participant in accordance with procedures the Company may specify from time to time. By accepting this Award, Participant expressly consents to the sale of Shares to cover the Tax Withholding
Obligation (and any associated broker or other fees) through the Sell-to-Cover Method and agrees and acknowledges that Participant may not satisfy them by any means
other than such sale of Shares, unless required to do so by the Administrator or pursuant to the Administrator’s express written consent. 

(c)    Sell-to-Cover
Method Unavailable. If the use of the default Sell-to-Cover Method to satisfy the Participant’s Tax Withholding Obligations would violate the sale volume
limitations of Rule 144(e) of the Securities Act, the Participant will be required to satisfy Participant’s Tax Withholding Obligation by having the Company withhold otherwise deliverable Shares having a fair market value equal to the minimum
amount statutorily required to be withheld (or such greater amount up to the maximum statutory rate applicable to the Participant if permitted by the Administrator and provided such greater amount would not result in adverse financial accounting
consequences to the Company as determined by the Administrator) (the “Net Share Withholding Method”). 

(d)    Administrator Discretion. Notwithstanding the foregoing Sections 10(a) and 10(b), if the
Administrator determines it is in the best interests of the Company for Participant to satisfy Participant’s Tax Withholding Obligation by a method other than through the default
Sell-to-Cover Method described in Section 10(b) or the Net Share Withholding Method described in Section 10(c), it may permit or require Participant to satisfy
Participant’s Tax Withholding Obligation, in whole or in part (without limitation), if permissible by applicable local law, by (i) paying cash, (ii) withholding the amount of such Tax Withholding Obligation from Participant’s
wages or other cash compensation paid to Participant by the Company and/or the Employer, (iii) delivering to the Company Shares that Participant owns and that have vested with a fair market value equal to the amount required to be withheld (or
such greater amount up to the maximum statutory rate applicable to the Participant if permitted by the Administrator and provided such greater amount would not result in adverse financial accounting consequences to the Company as determined by the
Administrator), or (iv) such other means as the Administrator deems appropriate. 

(e)    Company’s Obligation to Deliver Shares. For clarification purposes, in no event will
the Company issue Participant any Shares unless and until arrangements satisfactory to the Administrator have been made for the payment of Participant’s Tax Withholding Obligation. If Participant fails to make satisfactory arrangements for the
payment of such Tax Withholding Obligations hereunder at the time any applicable Restricted Stock Units otherwise are scheduled to vest pursuant to Sections 4 or 6 or Participant’s Tax Withholding Obligations otherwise become due, Participant
will permanently forfeit such Restricted Stock Units to which Participant’s Tax Withholding Obligation relates and any right to receive Shares thereunder and such Restricted Stock Units will be returned to the Company at no cost to the Company.
Participant acknowledges and agrees that the Company may refuse to issue or deliver the Shares if such Tax Obligations are not delivered at the time they are due. 

11.    Rights as Stockholder. Neither Participant nor any person claiming under or through
Participant will have any of the rights or privileges of a stockholder of the Company in respect of any Shares deliverable hereunder unless and until certificates representing such Shares (which may be in book entry form) will have been issued,
recorded on the records of the Company or its transfer 

  
 6 













 
agents or registrars, and delivered to Participant (including through electronic delivery to a brokerage account). After such issuance, recordation and delivery, Participant will have all the
rights of a stockholder of the Company with respect to voting such Shares and receipt of dividends and distributions on such Shares. 

12.    No Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF
THE RESTRICTED STOCK UNITS PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE EMPLOYER) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS RESTRICTED STOCK UNIT AWARD
OR ACQUIRING SHARES HEREUNDER. PARTICIPANT FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT
AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE EMPLOYER) TO TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE
PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE. 
 13.    Grant is Not Transferable. Except to the
limited extent provided in Section 9, this grant and the rights and privileges conferred hereby will not be transferred, assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and will not be subject to sale
under execution, attachment or similar process. Upon any attempt to transfer, assign, pledge, hypothecate or otherwise dispose of this grant, or any right or privilege conferred hereby, or upon any attempted sale under any execution, attachment or
similar process, this grant and the rights and privileges conferred hereby immediately will become null and void. 

14.    Company’s Right of First Refusal. Subject to Section 13, before any
Shares held by Participant or any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its assignee(s) shall have a
right of first refusal to purchase the Shares on the terms and conditions set forth in this Section 14 (the “Right of First Refusal”). 

(a)    Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written
notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser or other transferee (“Proposed Transferee”); (iii) the
number of Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares
at the Offered Price to the Company or its assignee(s). 
 (b)    Exercise of Right of First
Refusal. At any time within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred
to any one or more of the Proposed Transferees, at the purchase price determined in accordance with subsection (c) below. 

  
 7 













 (c)    Purchase Price. The purchase price
(“Right of First Refusal Price”) for the Shares purchased by the Company or its assignee(s) under this Section 14 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of
the non-cash consideration shall be determined by the Board in good faith. 

(d)    Payment. Payment of the Right of First Refusal Price shall be made, at the option of the
Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee, to the assignee), or by any combination thereof within
thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 

(e)    Holder’s Right to Transfer. If all of the 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 14, then the Holder may sell or otherwise transfer such Shares to that Proposed Transferee at the Offered Price or at
a higher price, provided that such sale or other transfer is consummated within one hundred and twenty (120) days after the date of the Notice, that any such sale or other transfer is effected in accordance with any applicable securities laws
and that the Proposed Transferee agrees in writing that the provisions of this Section 14 shall continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice are not transferred to the Proposed
Transferee within such period, a new Notice shall be given to the Company, and the Company and/or its assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 

(f)    Exception for Certain Family Transfers. Anything to the contrary contained in this
Section 14 notwithstanding, the transfer of any or all of the Shares during the Participant’s lifetime or on the Participant’s death by will or intestacy to the Participant’s immediate family or a trust for the benefit of the
Participant’s immediate family shall be exempt from the provisions of this Section 14. “Immediate Family” as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother or sister. In such case, the
transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions of this Award Agreement, including this Section 14, and there shall be no further transfer of such Shares except in accordance with the
terms of this Section 14. 
 (g)    Termination of Right of First Refusal. The Right of
First Refusal shall terminate as to any Shares upon the earlier of (i) the first sale of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor corporation has equity securities that are
publicly traded. 
 15.    Restrictive Legends and Stop-Transfer Orders. 

(a)    Legends. Participant understands and agrees that the Company shall cause the legends set
forth below, or legends substantially equivalent thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required by the Company or by state or federal securities laws: 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT
BE 

  
 8 













 
OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER,
SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE
SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL IN FAVOR OF THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE RESTRICTED STOCK UNIT AWARD 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 TRANSFER RESTRICTIONS AND RIGHT OF FIRST REFUSAL IN FAVOR OF THE ISSUER OR ITS ASSIGNEE(S) ARE BINDING ON TRANSFEREES OF THESE SHARES. 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE
DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH
PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 
 (b)    Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers
its own securities, it may make appropriate notations to the same effect in its own records. 

(c)    Refusal to Transfer. The Company shall 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 Award 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 shall have been so transferred. 
 16.    Restrictions on Sale of Securities.
Any sale of the Shares issued under this Award Agreement will be subject to any market blackout-period that may be imposed by the Company and must comply with the Company’s insider trading policies and other Applicable Laws. 

17.    Nature of Grant. In accepting the grant, Participant acknowledges, understands and agrees
that: 
 (a)    the grant of the Restricted Stock Units is voluntary and occasional and does not create
any contractual or other right to receive future grants of Restricted Stock Units, or benefits in lieu of Restricted Stock Units, even if Restricted Stock Units have been granted in the past; 

  
 9 













 (b)    all decisions with respect to future Restricted
Stock Units or other grants, if any, will be at the sole discretion of the Company; 

(c)    Participant is voluntarily participating in the Plan; 

(d)    the Restricted Stock Units and the Shares subject to the Restricted Stock Units are not intended to
replace any pension rights or compensation; 
 (e)    the Restricted Stock Units and the Shares subject
to the Restricted Stock Units, and the income and value of same, are not part of normal or expected compensation for purposes of calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments; 

(f)    the future value of the underlying Shares is unknown, indeterminable and cannot be predicted; 

(g)    for purposes of the Restricted Stock Units, Participant’s status as a Service Provider will be
considered terminated as of the date Participant is no longer actively providing services to the Company or any Parent or Subsidiary (regardless of the reason for such termination and whether or not later to be found invalid or in breach of
employment laws in the jurisdiction where Participant is a Service Provider or the terms of Participant’s employment or service agreement, if any), and unless otherwise expressly provided in this Award Agreement (including by reference in the
Notice of Grant to other arrangements or contracts) or determined by the Administrator, Participant’s right to vest in the Restricted Stock Units under the Plan, if any, will terminate as of such date and will not be extended by any notice
period (e.g., Participant’s period of service would not include any contractual notice period or any period of “garden leave” or similar period mandated under employment laws in the jurisdiction where Participant is a Service Provider
or the terms of Participant’s employment or service agreement, if any, unless Participant is providing bona fide services during such time); the Administrator shall have the exclusive discretion to determine when Participant is no longer
actively providing services for purposes of the Restricted Stock Units grant (including whether Participant may still be considered to be providing services while on a leave of absence); 

(h)    unless otherwise provided in the Plan or by the Company in its discretion, the Restricted Stock
Units and the benefits evidenced by this Award Agreement do not create any entitlement to have the Restricted Stock Units or any such benefits transferred to, or assumed by, another company or exchanged, cashed out or substituted for, in connection
with any corporate transaction affecting the Shares; and 
 (i)    the following provisions apply only
if Participant is providing services outside the United States: 
 (i)    the Restricted Stock Units and
the Shares subject to the Restricted Stock Units are not part of normal or expected compensation or salary for any purpose; 

  
 10 













 (ii)    Participant acknowledges and agrees that none
of the Company, the Employer or any Parent or Subsidiary shall be liable for any foreign exchange rate fluctuation between Participant’s local currency and the United States Dollar that may affect the value of the Restricted Stock Units
or of any amounts due to Participant pursuant to the settlement of the Restricted Stock Units or the subsequent sale of any Shares acquired upon settlement; and 

(iii)    no claim or entitlement to compensation or damages shall arise from forfeiture of the Restricted
Stock Units resulting from the termination of Participant’s status as a Service Provider (for any reason whatsoever whether or not later found to be invalid or in breach of employment laws in the jurisdiction where Participant is a Service
Provider or the terms of Participant’s employment or service agreement, if any), and in consideration of the grant of the Restricted Stock Units to which Participant is otherwise not entitled, Participant irrevocably agrees never to
institute any claim against the Company, any Parent or Subsidiary or the Employer, waives his or her ability, if any, to bring any such claim, and releases the Company, any Parent or Subsidiary and the Employer from any such claim; if,
notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, Participant shall be deemed irrevocably to have agreed not to pursue such claim and agrees to execute any and all
documents necessary to request dismissal or withdrawal of such claim. 
 18.    No Advice Regarding
Grant. The Company is not providing any tax, legal or financial advice, nor is the Company making any recommendations regarding Participant’s participation in the Plan, or Participant’s acquisition or sale of the underlying Shares.
Participant is hereby advised to consult with his or her own personal tax, legal and financial advisors regarding his or her participation in the Plan before taking any action related to the Plan. 

19.    Data Privacy. Participant hereby explicitly and
unambiguously consents to the collection, use and transfer, in electronic or other form, of Participant’s personal data as described in this Award Agreement and any other Restricted Stock Unit grant materials by and among, as applicable, the
Employer, the Company and any Parent or Subsidiary for the exclusive purpose of implementing, administering and managing Participant’s participation in the Plan. 

Participant understands that the Company and the Employer may hold certain personal information about Participant,
including, but not limited to, Participant’s name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title, any Shares or directorships held in the Company,
details of all Restricted Stock Units or any other entitlement to Shares awarded, canceled, exercised, vested, unvested or outstanding in Participant’s favor (“Data”), for the exclusive purpose of implementing, administering and
managing the Plan. 
 Participant understands that Data will be transferred to a stock plan service provider
as may be selected by the Company in the future, which is assisting the Company with the implementation, administration and management of the Plan. Participant understands that the recipients of the Data may be located in the United States or
elsewhere, and that the recipients’ country of operation (e.g., the United States) may have different data privacy laws and protections than Participant’s country. Participant understands that if he or she resides outside the United
States, he or she may request a list with the names and addresses of any potential recipients of the Data by contacting his or her local human resources representative. Participant authorizes the


  
 11 













 
Company, any stock plan service provider selected by the Company and any other possible recipients which may assist the Company (presently or in the future) with implementing, administering and
managing the Plan to receive, possess, use, retain and transfer the Data, in electronic or other form, for the sole purpose of implementing, administering and managing his or her participation in the Plan. Participant understands that Data will be
held only as long as is necessary to implement, administer and manage Participant’s participation in the Plan. Participant understands if he or she resides outside the United States, he or she may, at any time, view Data, request additional
information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing his or her local human resources representative. Further,
Participant understands that he or she is providing the consents herein on a purely voluntary basis. If Participant does not consent, or if Participant later seeks to revoke his or her consent, his or her status as a Service Provider and career with
the Employer will not be adversely affected; the only adverse consequence of refusing or withdrawing Participant’s consent is that the Company would not be able to grant Participant Restricted Stock Units or other equity awards or administer or
maintain such awards. Therefore, Participant understands that refusing or withdrawing his or her consent may affect Participant’s ability to participate in the Plan. For more information on the consequences of Participant’s refusal to
consent or withdrawal of consent, Participant understands that he or she may contact his or her local human resources representative. 

20.    Address for Notices. Any notice to be given to the Company under the terms of this Award
Agreement will be addressed to the Company at Ra Medical Systems, Inc. 2070 Las Palmas Drive, Carlsbad, California 92011, or at such other address as the Company may hereafter designate in writing. 

21.    Electronic Delivery. The Company may, in its sole discretion, decide to deliver any
documents related to the Restricted Stock Units awarded under the Plan or future Restricted Stock Units that may be awarded under the Plan by electronic means or request Participant’s consent to participate in the Plan by electronic means.
Participant hereby consents to receive such documents by electronic delivery and agrees to participate in the Plan through any on-line or electronic system established and maintained by the Company or another
third party designated by the Company. 
 22.    No Waiver. Either party’s failure to
enforce any provision or provisions of this Award Agreement shall not in any way be construed as a waiver of any such provision or provisions, nor prevent that party from thereafter enforcing each and every other provision of this Award Agreement.
The rights granted both parties herein are cumulative and shall not constitute a waiver of either party’s right to assert all other legal remedies available to it under the circumstances. 

23.    Successors and Assigns. The Company may assign any of its rights under this Award Agreement
to single or multiple assignees, and this Award Agreement shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth, this Award Agreement shall be binding upon Participant and
his or her heirs, executors, administrators, successors and assigns. The rights and obligations of Participant under this Award Agreement may only be assigned with the prior written consent of the Company. 

  
 12 













 24.    Additional Conditions to Issuance of
Stock. If at any time the Company will determine, in its discretion, that the listing, registration, qualification or rule compliance of the Shares upon any securities exchange or under any state, federal or foreign law, the tax code and related
regulations or under the rulings or regulations of the United States Securities and Exchange Commission or any other governmental regulatory body or the clearance, consent or approval of the United States Securities and Exchange Commission or any
other governmental regulatory authority is necessary or desirable as a condition to the issuance of Shares to Participant (or his or her estate) hereunder, such issuance will not occur unless and until such listing, registration, qualification, rule
compliance, clearance, consent or approval will have been completed, effected or obtained free of any conditions not acceptable to the Company. Subject to the terms of the Award Agreement and the Plan, the Company shall not be required to issue any
certificate or certificates for Shares hereunder prior to the lapse of such reasonable period of time following the date of vesting of the Restricted Stock Units as the Administrator may establish from time to time for reasons of administrative
convenience. 
 25.    Language. If Participant has received this Award Agreement or any other
document related to the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control. 

26.    Interpretation. The Administrator will have the power to interpret the Plan and this Award
Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to interpret or revoke any such rules (including, but not limited to, the determination of whether or not any
Restricted Stock Units have vested). All actions taken and all interpretations and determinations made by the Administrator in good faith will be final and binding upon Participant, the Company and all other interested persons. Neither the
Administrator nor any person acting on behalf of the Administrator will be personally liable for any action, determination or interpretation made in good faith with respect to the Plan or this Award Agreement. 

27.    Modifications to the Award Agreement. This Award Agreement constitutes the entire
understanding of the parties on the subjects covered. Participant expressly warrants that he or she is not accepting this Award Agreement in reliance on any promises, representations, or inducements other than those contained herein. Modifications
to this Award Agreement or the Plan can be made only in an express written contract executed by a duly authorized officer of the Company. Notwithstanding anything to the contrary in the Plan or this Award Agreement, the Company reserves the right to
revise this Award Agreement as it deems necessary or advisable, in its sole discretion and without the consent of Participant, to comply with Section 409A or to otherwise avoid imposition of any additional tax or income recognition under
Section 409A in connection to this Award of Restricted Stock Units. 
 28.    Governing Law;
Severability. This Award Agreement and the Restricted Stock Units are governed by the internal substantive laws, but not the choice of law rules, of California. In the event that any provision hereof becomes or is declared by a court of
competent jurisdiction to be illegal, unenforceable or void, this Award Agreement shall continue in full force and effect. 

29.    Entire Agreement. The Plan is incorporated herein by reference. The Plan and this Award
Agreement (including the exhibits and addendums referenced herein) constitute the entire 

  
 13 













 
agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject
matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 

30.    Country Addendum. Notwithstanding any provisions in this Award Agreement, the Restricted
Stock Unit grant shall be subject to any special terms and conditions set forth in any appendix to this Award Agreement for any country whose laws are applicable to Participant and this Award of Restricted Stock Units (as determined by the
Administrator in its sole discretion) (the “Country Addendum”). Moreover, if Participant relocates to one of the countries included in the Country Addendum, the special terms and conditions for such country will apply to Participant, to
the extent the Company determines that the application of such terms and conditions is necessary or advisable for legal or administrative reasons. The Country Addendum constitutes part of this Award Agreement. 

Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the terms and provisions
thereof, and hereby accepts this Award Agreement subject to all of the terms and provisions thereof. Participant has reviewed the Plan and this Award Agreement in their entirety, has had an opportunity to obtain the advice of counsel prior to
executing this Award Agreement and fully understands all provisions of this Award Agreement. Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under
the Plan or this Award Agreement. Participant further agrees to notify the Company upon any change in the residence address indicated below. 
  

					
	 PARTICIPANT
	 		  	 RA MEDICAL SYSTEMS, INC.

			
		 		  	
	  
 Signature
	 		  	  
 By

			
	 «Name»
	 		  	  

	 Print Name
	 		  	 Print Name

			
		 		  	  

		 		  	 Title

		 		  	
	 Address:
	 		  	
			
	 «Address»
	 		  	
			
	 «CityStateZip»
	 		  	


  
 14 













 RA MEDICAL SYSTEMS, INC. 

RESTRICTED STOCK UNIT AWARD AGREEMENT 

COUNTRY ADDENDUM 
 TERMS AND
CONDITIONS 
 This Country Addendum includes additional terms and conditions that govern the award of Restricted Stock Units under
the Plan if Participant works in one of the countries listed below. If Participant is a citizen or resident of a country (or is considered as such for local law purposes) other than the one in which he or she is currently working or if Participant
relocates to another country after receiving the Award of Restricted Stock Units, the Company will, in its discretion, determine the extent to which the terms and conditions contained herein will be applicable to Participant. 

Certain capitalized terms used but not defined in this Country Addendum shall have the meanings set forth in the Plan and/or the Award
Agreement to which this Country Addendum is attached. 
 NOTIFICATIONS 

This Country Addendum also includes notifications relating to exchange control and other issues of which Participant should be aware with
respect to his or her participation in the Plan. The information is based on the exchange control, securities and other laws in effect in the countries listed in this Country Addendum, as of
[            ]. Such laws are often complex and change frequently. As a result, the Company strongly recommends that Participant not rely on the notifications herein as the only source of
information relating to the consequences of his or her participation in the Plan because the information may be outdated when Participant vests in the Restricted Stock Units and acquires Shares, or when Participant subsequently sell Shares acquired
under the Plan. 
 In addition, the notifications are general in nature and may not apply to Participant’s particular situation, and
the Company is not in a position to assure Participant of any particular result. Accordingly, Participant is advised to seek appropriate professional advice as to how the relevant laws in Participant’s country may apply to Participant’s
situation. 
 Finally, if Participant is a citizen or resident of a country other than the one in which Participant is currently working (or
is considered as such for local law purposes) or if Participant moves to another country after receiving an Award of Restricted Stock Units, the information contained herein may not be applicable to Participant. 












 EXHIBIT A 

INVESTMENT REPRESENTATION STATEMENT 
  

									
	 PARTICIPANT
	 	 :
	 	 «NAME»
	 		  	
					
	 COMPANY
	 	 :
	 	 RA MEDICAL SYSTEMS, INC.
	 		  	
					
	 SECURITY
	 	 :
	 	 COMMON STOCK
	 		  	
					
	 AMOUNT
	 	 :
	 	  
	 		  	
					
	 DATE
	 	 :
	 	  
	 		  	

 In connection with the receipt of the above-listed Securities, the undersigned Participant
represents to the Company the following: 
 (a)    Participant is aware of the Company’s business
affairs and financial condition and has acquired sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Securities. Participant is acquiring these Securities for investment for Participant’s own
account only and not with a view to, or for resale in connection with, any “distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). 

(b)    Participant acknowledges and understands that the Securities constitute “restricted
securities” under the Securities Act and have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of Participant’s investment
intent as expressed herein. In this connection, Participant understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be unavailable if Participant’s representation was predicated solely
upon a present intention to hold these Securities for the minimum capital gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in the market price of the Securities, or for a period of one
(1) year or any other fixed period in the future. Participant further understands that the Securities must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration is
available. Participant further acknowledges and understands that the Company is under no obligation to register the Securities. Participant understands that the certificate evidencing the Securities shall be imprinted with any legend required under
applicable state securities laws. 
 (c)    Participant is familiar with the provisions of Rule 701
and Rule 144, each promulgated under the Securities Act, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a
non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Restricted Stock Unit Award to
Participant, the receipt of the Securities shall be exempt from registration under the Securities Act. In the event the Company becomes 












 
subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under Rule 701 may be resold, subject to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates
(1) the availability of certain public information about the Company, (2) the amount of Securities being sold during any three (3) month period not exceeding specified limitations, (3) the resale being made in an unsolicited
“broker’s transaction”, transactions directly with a “market maker” or “riskless principal transactions” (as those terms are defined under the Securities Exchange Act of 1934) and (4) the timely filing of a
Form 144, if applicable. 
 In the event that the Company does not qualify under Rule 701 at the time of grant of
the Restricted Stock Unit Award, then the Securities may be resold in certain limited circumstances subject to the provisions of Rule 144, which may require (1) the availability of current public information about the Company; (2) the
resale to occur more than a specified period after the purchase and full payment (within the meaning of Rule 144) for the Securities; and (3) in the case of the sale of Securities by an affiliate, the satisfaction of the conditions set
forth in sections (2), (3) and (4) of the paragraph immediately above. 
 (d)    Participant
further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied, registration under the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and
that, notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered
offering and otherwise than pursuant to Rules 144 or 701 shall have a substantial burden of proof in establishing that an exemption from registration is available for such offers or sales, and that such persons and their respective brokers who
participate in such transactions do so at their own risk. Participant understands that no assurances can be given that any such other registration exemption shall be available in such event. 

 

	
	 PARTICIPANT

	  

	 Signature

	
	 «Name»

	 Print Name

	  

	 Date




  
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