Document:

EX-4.2

 Exhibit 4.2 

TP THERAPEUTICS, INC. 

FOURTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

THIS FOURTH AMENDED AND RESTATED
INVESTOR RIGHTS AGREEMENT (the “Agreement”) is entered into as of October 18, 2018, by and among TP THERAPEUTICS,
INC., a Delaware corporation (the “Company”) and certain investors of the Company (referred to hereinafter as the “Investors” and each individually as an
“Investor”), including the purchasers of Series D Preferred Stock listed on EXHIBIT A hereto. 

RECITALS 

WHEREAS, the Company and certain of the Investors (the “Prior
Investors”) are parties to that certain Third Amended and Restated Investor Rights Agreement dated as of May 17, 2017 (the “Prior Agreement”); 

WHEREAS, certain of the Investors (the “Series D Investors”) are
parties to that certain Series D Preferred Stock Purchase Agreement dated as of even date herewith, as the same may be amended from time to time (the “Purchase Agreement”); 

WHEREAS, the Company and the Prior Investors desire to amend and restate the Prior
Agreement to provide the Series D Investors with the registration, information rights and other rights as set forth below. 
 AGREEMENT

 NOW, THEREFORE, in consideration of these premises and for other
good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 
 SECTION 1.
GENERAL. 
 1.1    Definitions. As used in this Agreement the following terms shall
have the following respective meanings: 
 (a)    “Common Stock” means
the Company’s Common Stock, par value $0.0001 per share. 
 (b)    “Exchange
Act” means the Securities Exchange Act of 1934, as amended. 

(c)    “Form S-3” means such form
under the Securities Act as in effect on the date hereof or any successor or similar registration form under the Securities Act subsequently adopted by the SEC which permits inclusion or incorporation of substantial information by reference to other
documents filed by the Company with the SEC. 

  
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 (d)    “Holder” means any
person owning of record Registrable Securities that have not been sold to the public or any assignee of record of such Registrable Securities in accordance with Section 2.9 hereof. 

(e)    “Initial Offering” means the Company’s first firm commitment
underwritten public offering of its Common Stock registered under the Securities Act. 

(f)    “Preferred Stock” means the Company’s Series A Preferred Stock,
Series B Preferred Stock, Series C Preferred Stock and Series D Preferred Stock. 

(g)    “Register,” “registered,” and
“registration” refer to a registration effected by preparing and filing a registration statement in compliance with the Securities Act, and the declaration or ordering of effectiveness of such registration statement or
document. 
 (h)    “Registrable Securities” means (a) Common Stock
issuable or issued upon conversion of the Shares and (b) any Common Stock issued as (or issuable upon the conversion or exercise of any warrant, right or other security which is issued as) a dividend or other distribution with respect to, or in
exchange for or in replacement of, such above-described securities. Notwithstanding the foregoing, Registrable Securities shall not include any securities (I) sold by a person to the public either pursuant to a registration statement or Rule
144 or (ii) sold in a private transaction in which the transferor’s rights under Section 2 of this Agreement are not assigned. 

(i)    “Registrable Securities then outstanding” shall be the number of
shares of the Company’s Common Stock that are Registrable Securities and either (a) are then issued and outstanding or (b) are issuable pursuant to then exercisable or convertible securities. 

(j)    “Registration Expenses” shall mean all expenses incurred by the
Company in complying with Sections 2.2, 2.3 and 2.4 hereof, including, without limitation, all registration and filing fees, printing expenses, fees and disbursements of counsel for the Company, reasonable fees and disbursements of a single special
counsel for the Holders, blue sky fees and expenses and the expense of any special audits incident to or required by any such registration (but excluding the compensation of regular employees of the Company which shall be paid in any event by the
Company, underwriting discounts and commissions). 
 (k)    “Rule 144”
shall mean Rule 144 promulgated under the Securities Act. 
 (l)    “SEC”
or “Commission” means the Securities and Exchange Commission. 

(m)    “Securities Act” shall mean the Securities Act of 1933, as amended.

 (n)    “Selling Expenses” shall mean all underwriting discounts and
selling commissions applicable to the sale. 
 (o)    “Series A Preferred
Stock” shall mean the Company’s Series A Preferred Stock, par value $0.0001 per share. 

  
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 (p)    “Series B Preferred
Stock” shall mean the Company’s Series B Preferred Stock, par value $0.0001 per share. 

(q)    “Series C Preferred Stock” shall mean the Company’s Series C
Preferred Stock, par value $0.0001 per share. 
 (r)    “Series D Preferred
Stock” shall mean the Company’s Series D Preferred Stock, par value $0.0001 per share. 

(s)    “Shares” shall mean the Preferred Stock held from time to time by
the Investors listed on Exhibit A hereto and their permitted assigns. 

(t)    “Special Registration Statement” shall mean (i) a registration
statement relating to any employee benefit plan or (ii) with respect to any corporate reorganization or transaction under Rule 145 of the Securities Act, any registration statements related to the issuance or resale of securities issued in such
a transaction or (iii) a registration related to stock issued upon conversion of debt securities. 
 SECTION 2. REGISTRATION; RESTRICTIONS ON
TRANSFER. 
 2.1    Restrictions on Transfer. 

(a)    Each Holder agrees not to make any disposition of all or any portion of the Shares or
Registrable Securities unless and until: 
 (i)    there is then in effect a registration
statement under the Securities Act covering such proposed disposition and such disposition is made in accordance with such registration statement; or 

(ii)    (A) The transferee has agreed in writing to be bound by the terms of this Agreement,
(B) such Holder shall have notified the Company of the proposed disposition and shall have furnished the Company with a reasonably detailed statement of the circumstances surrounding the proposed disposition, and (C) if reasonably
requested by the Company, such Holder shall have furnished the Company with an opinion of counsel, reasonably satisfactory to the Company, that such disposition will not require registration of such shares under the Securities Act. It is agreed that
the Company will not require opinions of counsel for transactions made pursuant to Rule 144, except in unusual circumstances. After its Initial Offering, the Company will not require any transferee pursuant to Rule 144 to be bound by the terms of
this Agreement if the shares so transferred do not remain Registrable Securities hereunder following such transfer. 

(b)    Notwithstanding the provisions of subsection (a) above, no such restriction shall apply
to a transfer by a Holder that is (A) a partnership transferring to its (i) partners or former partners in accordance with partnership interests or (ii) affiliated partnerships or funds managed by it or any of their respective
directors, officers or partners, (B) a corporation transferring to a wholly-owned subsidiary or a parent corporation that owns all of the capital stock of the Holder, (C) a limited liability company transferring to its members or former
members in accordance with their interest in the limited liability company, or (D) an individual 

  
 3. 

 
transferring to the Holder’s family member or trust for the benefit of an individual Holder; provided that in each case the transferee will agree in writing to be subject to the terms of
this Agreement to the same extent as if he were an original Holder hereunder. 
 (c)    Each
certificate representing Shares or Registrable Securities shall be stamped or otherwise imprinted with legends substantially similar to the following (in addition to any legend required under applicable state securities laws): 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“ACT”) AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR THERE IS A VALID EXEMPTION FROM SUCH REGISTRATION REQUIREMENTS. 

THE SALE, PLEDGE, HYPOTHECATION OR TRANSFER OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE IS SUBJECT TO
THE TERMS AND CONDITIONS OF A CERTAIN INVESTOR RIGHTS AGREEMENT BY AND BETWEEN THE STOCKHOLDER AND THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY. 

(d)    The Company shall be obligated to reissue promptly unlegended certificates at the request of
any Holder thereof if the Company has completed its Initial Offering and the Holder shall have obtained an opinion of counsel (which counsel may be counsel to the Company) reasonably acceptable to the Company to the effect that the securities
proposed to be disposed of may lawfully be so disposed of without registration, qualification and legend, provided that the second legend listed above shall be removed only at such time as the Holder of such certificate is no longer subject to any
restrictions hereunder. 
 (e)    Any legend endorsed on an instrument pursuant to applicable
state securities laws and the stop-transfer instructions with respect to such securities shall be removed upon receipt by the Company of an order of the appropriate blue sky authority authorizing such removal. 

2.2    Demand Registration. 

(a)    Subject to the conditions of this Section 2.2, if the Company shall receive a written
request from either (i) the Holders of at least a majority of the Registrable Securities or (ii) the Holders of at least a majority of the Series D Preferred Stock, Series C Preferred Stock and Series B Preferred Stock, voting together on
an as-converted basis (in either case, the “Initiating Holders”) that the Company file a registration statement under the Securities Act covering the registration of Registrable
Securities with an aggregate offering price to the public 

  
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of not less than $30,000,000, then the Company shall, within 30 days of the receipt thereof, give written notice of such request to all Holders, and subject to the limitations of this
Section 2.2, use its best efforts to effect, as expeditiously as reasonably possible, the registration under the Securities Act of all Registrable Securities that all Holders request to be registered. 

(b)    If the Initiating Holders intend to distribute the Registrable Securities covered by their
request by means of an underwriting, they shall so advise the Company as a part of their request made pursuant to this Section 2.2 or any request pursuant to Section 2.4 and the Company shall include such information in the written notice
referred to in Section 2.2(a) or Section 2.4(a), as applicable. In such event, the right of any Holder to include its Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such
underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement
in customary form with the underwriter or underwriters selected for such underwriting by the Holders of at least a majority of the Registrable Securities held by all Initiating Holders (which underwriter or underwriters shall be reasonably
acceptable to the Company). Notwithstanding any other provision of this Section 2.2 or Section 2.4, if the underwriter advises the Company that marketing factors require a limitation of the number of securities to be underwritten
(including Registrable Securities) then the Company shall so advise all Holders of Registrable Securities that would otherwise be underwritten pursuant hereto, and the number of shares that may be included in the underwriting shall be allocated to
the Holders of such Registrable Securities on a pro rata basis based on the number of Registrable Securities held by all such Holders (including the Initiating Holders). In no event shall the number of Registrable Securities underwritten in
such registration be limited unless and until all shares held by persons other than Holders, including the Company, are completely excluded from such offering. Any Registrable Securities excluded or withdrawn from such underwriting shall be
withdrawn from the registration. 
 (c)    The Company shall not be required to effect a
registration pursuant to this Section 2.2: 
 (i)    prior to the earlier of (A) the
sixth anniversary of the date of this Agreement or (B) of the expiration of the restrictions on transfer set forth in Section 2.11 following the Initial Offering; 

(ii)    after the Company has effected two registrations pursuant to this Section 2.2, and
such registrations have been declared or ordered effective; 
 (iii)    during the period
starting with the date of filing of, and ending on the date 180 days following the effective date of the registration statement pertaining to the Initial Offering (or such longer period as may be determined pursuant to Section 2.11 hereof);
provided that the Company makes reasonable good faith efforts to cause such registration statement to become effective; 

(iv)    if within 30 days of receipt of a written request from Initiating Holders pursuant to
Section 2.2(a), the Company gives notice to the Holders of the Company’s intention to file a registration statement for its Initial Offering within 90 days; 

  
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 (v)    if the Company shall furnish to Holders
requesting a registration statement pursuant to this Section 2.2 a certificate signed by the Chairman of the Board of Directors of the Company (the “Board”) stating that in the good faith judgment of the Board, it would
be seriously detrimental to the Company and its stockholders for such registration statement to be effected at such time, in which event the Company shall have the right to defer such filing for a period of not more than 180 days after receipt of
the request of the Initiating Holders; provided that such right to delay a request shall be exercised by the Company not more than twice in any 12-month period; 

(vi)    if the Initiating Holders propose to dispose of shares of Registrable Securities that may
be immediately registered on Form S-3 pursuant to a request made pursuant to Section 2.4 below; or 

(vii)    in any particular jurisdiction in which the Company would be required to qualify to do
business or to execute a general consent to service of process in effecting such registration, qualification or compliance. 

2.3    Piggyback Registrations. The Company shall notify all Holders of Registrable
Securities in writing at least 15 days prior to the filing of any registration statement under the Securities Act for purposes of a public offering of securities of the Company (including, but not limited to, registration statements relating to
secondary offerings of securities of the Company, but excluding Special Registration Statements) and will afford each such Holder an opportunity to include in such registration statement all or part of such Registrable Securities held by such
Holder. Each Holder desiring to include in any such registration statement all or any part of the Registrable Securities held by it shall, within 15 days after the above-described notice from the Company, so notify the Company in writing. Such
notice shall state the intended method of disposition of the Registrable Securities by such Holder. If a Holder decides not to include all of its Registrable Securities in any registration statement thereafter filed by the Company, such Holder shall
nevertheless continue to have the right to include any Registrable Securities in any subsequent registration statement or registration statements as may be filed by the Company with respect to offerings of its securities, all upon the terms and
conditions set forth herein. 
 (a)    Underwriting. If the registration statement of
which the Company gives notice under this Section 2.3 is for an underwritten offering, the Company shall so advise the Holders of Registrable Securities. In such event, the right of any such Holder to include Registrable Securities in a
registration pursuant to this Section 2.3 shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All
Holders proposing to distribute their Registrable Securities through such underwriting shall enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting by the Company. Notwithstanding
any other provision of this Agreement, if the Company determines in good faith, based on consultation with the underwriter, that marketing factors require a limitation of the number of shares to be underwritten, the number of shares that may be
included in the underwriting shall be allocated, first, to the Company; second, to the Holders on a pro rata basis based on the total number of Registrable Securities held by the Holders; and third, to any stockholder of the Company (other
than a Holder) on a pro rata basis; provided, however, that no such reduction shall reduce the amount of securities of the selling Holders included in the 

  
 6. 

 
registration below 25% of the total amount of securities included in such registration, unless such offering is the Initial Offering and such registration does not include shares of any other
selling stockholders, in which event any or all of the Registrable Securities of the Holders may be excluded in accordance with the immediately preceding clause. In no event will shares of any other selling stockholder be included in such
registration that would reduce the number of shares which may be included by Holders without the written consent of Holders of not less than a majority of the Registrable Securities proposed to be sold in the offering. If any Holder disapproves of
the terms of any such underwriting, such Holder may elect to withdraw therefrom by written notice to the Company and the underwriter, delivered at least 10 business days prior to the effective date of the registration statement. Any Registrable
Securities excluded or withdrawn from such underwriting shall be excluded and withdrawn from the registration. For any Holder which is a partnership, limited liability company or corporation, the partners, retired partners, members, retired members
and stockholders of such Holder, or the estates and family members of any such partners, retired partners, members and retired members and any trusts for the benefit of any of the foregoing person shall be deemed to be a single “Holder,”
and any pro rata reduction with respect to such “Holder” shall be based upon the aggregate amount of shares carrying registration rights owned by all entities and individuals included in such “Holder,” as defined in this
sentence. 
 (b)    Right to Terminate Registration. The Company shall have the right to
terminate or withdraw any registration initiated by it under this Section 2.3 whether or not any Holder has elected to include securities in such registration. The Registration Expenses of such withdrawn registration shall be borne by the
Company in accordance with Section 2.5 hereof. 
 2.4    Form S-3 Registration. In case the Company shall receive a written request from any Holder or Holders of Registrable Securities that the Company effect a registration on Form
S-3 (or any successor to Form S-3) or any similar short-form registration statement and any related qualification or compliance with respect to all or a part of the
Registrable Securities owned by such Holder or Holders, the Company will: 
 (a)    promptly give
written notice of the proposed registration, and any related qualification or compliance, to all other Holders of Registrable Securities; and 

(b)    as soon as practicable, effect such registration and all such qualifications and compliances
as may be so requested and as would permit or facilitate the sale and distribution of all or such portion of such Holder’s or Holders’ Registrable Securities as are specified in such request, together with all or such portion of the
Registrable Securities of any other Holder or Holders joining in such request as are specified in a written request given within 15 days after receipt of such written notice from the Company; provided, however, that the Company shall not be
obligated to effect any such registration, qualification or compliance pursuant to this Section 2.4: 

(i)    if Form S-3 is not available for such offering by
the Holders; 
 (ii)    if the Holders, together with the holders of any other securities of the
Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any) at an aggregate price to the public of less than $1,000,000; 

  
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 (iii)    if within 30 days of receipt of a
written request from any Holder or Holders pursuant to this Section 2.4, the Company gives notice to such Holder or Holders of the Company’s intention to make a public offering within 90 days, other than pursuant to a Special Registration
Statement; 
 (iv)    if the Company shall furnish to the Holders a certificate signed by the
Chairman of the Board stating that in the good faith judgment of the Board, it would be seriously detrimental to the Company and its stockholders for such Form S-3 registration to be effected at such time, in
which event the Company shall have the right to defer the filing of the Form S-3 registration statement for a period of not more than 120 days after receipt of the request of the Holder or Holders under this
Section 2.4; provided, that such right to delay a request shall be exercised by the Company not more than twice in any 12-month period; 

(v)    if the Company has already effected three registrations on Form S-3 for the Holders pursuant to this Section 2.4; 

(vi)    if the Company has, within the 12-month period
preceding the date of such request, already effected two registrations on Form S-3 for the Holders pursuant to this Section 2.4; or 

(vii)    in any particular jurisdiction in which the Company would be required to qualify to do
business or to execute a general consent to service of process in effecting such registration, qualification or compliance. 

(c)    Subject to the foregoing, the Company shall file a Form
S-3 registration statement covering the Registrable Securities and other securities so requested to be registered as soon as practicable after receipt of the requests of the Holders. Registrations effected
pursuant to this Section 2.4 shall not be counted as demands for registration or registrations effected pursuant to Section 2.2. 

2.5    Expenses of Registration. Except as specifically provided herein, all Registration
Expenses incurred in connection with any registration, qualification or compliance pursuant to Section 2.2, 2.3 or 2.4 herein shall be borne by the Company. All Selling Expenses incurred in connection with any registrations hereunder, shall be
borne by the holders of the securities so registered pro rata on the basis of the number of shares so registered. The Company shall not, however, be required to pay for expenses of any registration proceeding begun pursuant to
Section 2.2 or 2.4, the request of which has been subsequently withdrawn by the Initiating Holders unless (a) the withdrawal is based upon material adverse information concerning the Company of which the Initiating Holders were not aware
at the time of such request or (b) the Holders of at least a majority of Registrable Securities agree to deem such registration to have been effected as of the date of such withdrawal for purposes of determining whether the Company shall be
obligated pursuant to Section 2.2 or 2.4, as applicable, to undertake any subsequent registration, in which event such right shall be forfeited by all Holders. If the Holders are required to pay the Registration Expenses, such expenses shall be
borne by the holders of securities (including Registrable Securities) requesting such registration in proportion to the number of shares for which registration was requested. If the Company is required to pay the Registration Expenses of a withdrawn
offering pursuant to clause (a) above, then such 

  
 8. 

 
registration shall not be deemed to have been effected for purposes of determining whether the Company shall be obligated pursuant to Section 2.2 or 2.4, as applicable, to undertake any
subsequent registration. 
 2.6    Obligations of the Company. Whenever required to effect
the registration of any Registrable Securities, the Company shall, as expeditiously as reasonably possible: 

(a)    prepare and file with the SEC a registration statement with respect to such Registrable
Securities and use its best efforts to cause such registration statement to become effective, and, upon the request of the Holders of at least a majority of the Registrable Securities registered thereunder, keep such registration statement effective
for up to 30 days or, if earlier, until the Holder or Holders have completed the distribution related thereto; provided, however, that at any time, upon written notice to the participating Holders and for a period not to exceed 60 days thereafter
(the “Suspension Period”), the Company may delay the filing or effectiveness of any registration statement or suspend the use or effectiveness of any registration statement (and the Initiating Holders hereby agree not to
offer or sell any Registrable Securities pursuant to such registration statement during the Suspension Period) if the Company reasonably believes that there is or may be in existence material nonpublic information or events involving the Company,
the failure of which to be disclosed in the prospectus included in the registration statement could result in a Violation (as defined below). In the event that the Company shall exercise its right to delay or suspend the filing or effectiveness of a
registration hereunder, the applicable time period during which the registration statement is to remain effective shall be extended by a period of time equal to the duration of the Suspension Period. The Company may extend the Suspension Period for
an additional consecutive 60 days with the consent of the holders of at least a majority of the Registrable Securities registered under the applicable registration statement, which consent shall not be unreasonably withheld. If so directed by the
Company, all Holders registering shares under such registration statement shall (i) not offer to sell any Registrable Securities pursuant to the registration statement during the period in which the delay or suspension is in effect after
receiving notice of such delay or suspension; and (ii) use their best efforts to deliver to the Company (at the Company’s expense) all copies, other than permanent file copies then in such Holders’ possession, of the prospectus
relating to such Registrable Securities current at the time of receipt of such notice. Notwithstanding the foregoing, the Company shall not be required to file, cause to become effective or maintain the effectiveness of any registration statement
other than a registration statement on Form S-3 that contemplates a distribution of securities on a delayed or continuous basis pursuant to Rule 415 under the Securities Act. 

(b)    Prepare and file with the SEC such amendments and supplements to such registration statement
and the prospectus used in connection with such registration statement as may be necessary to comply with the provisions of the Securities Act with respect to the disposition of all securities covered by such registration statement for the period
set forth in subsection (a) above. 
 (c)    Furnish to the Holders such number of copies of
a prospectus, including a preliminary prospectus, in conformity with the requirements of the Securities Act, and such other documents as they may reasonably request in order to facilitate the disposition of Registrable Securities owned by them. 

  
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 (d)    Use its best efforts to register and
qualify the securities covered by such registration statement under such other securities or Blue Sky laws of such jurisdictions as shall be reasonably requested by the Holders; provided that the Company shall not be required in connection therewith
or as a condition thereto to qualify to do business or to file a general consent to service of process in any such states or jurisdictions. 

(e)    In the event of any underwritten public offering, enter into and perform its obligations
under an underwriting agreement, in usual and customary form, with the managing underwriter(s) of such offering. Each Holder participating in such underwriting shall also enter into and perform its obligations under such an agreement. 

(f)    Notify each Holder of Registrable Securities covered by such registration statement at any
time when a prospectus relating thereto is required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in such registration statement, as then in effect, includes an untrue statement
of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing. The Company will use its best efforts to amend or
supplement such prospectus in order to cause such prospectus not to include any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the
light of the circumstances then existing. 
 (g)    Use its best efforts to furnish, on the date
that such Registrable Securities are delivered to the underwriters for sale, if such securities are being sold through underwriters, (i) an opinion, dated as of such date, of the counsel representing the Company for the purposes of such
registration, in form and substance as is customarily given to underwriters in an underwritten public offering, addressed to the underwriters, if any, and (ii) a letter, dated as of such date, from the independent certified public accountants
of the Company, in form and substance as is customarily given by independent certified public accountants to underwriters in an underwritten public offering addressed to the underwriters. 

2.7    Delay of Registration; Furnishing Information. 

(a)    No Holder shall have any right to obtain or seek an injunction restraining or otherwise
delaying any such registration as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 2. 

(b)    It shall be a condition precedent to the obligations of the Company to take any action
pursuant to Section 2.2, 2.3 or 2.4 that the selling Holders shall furnish to the Company such information regarding themselves, the Registrable Securities held by them and the intended method of disposition of such securities as shall be
required to effect the registration of their Registrable Securities. 
 (c)    The Company shall
have no obligation with respect to any registration requested pursuant to Section 2.2 or Section 2.4 if the number of shares or the anticipated aggregate offering price of the Registrable Securities to be included in the registration does
not equal or exceed the number of shares or the anticipated aggregate offering price required to 

  
 10. 

 
originally trigger the Company’s obligation to initiate such registration as specified in Section 2.2 or Section 2.4, whichever is applicable. 

2.8    Indemnification. In the event any Registrable Securities are included in a
registration statement under Sections 2.2, 2.3 or 2.4: 
 (a)    To the extent permitted by law,
the Company will indemnify and hold harmless each Holder, the partners, members, officers and directors of each Holder, any underwriter (as defined in the Securities Act) for such Holder and each person, if any, who controls such Holder or
underwriter within the meaning of the Securities Act or the Exchange Act, against any losses, claims, damages, or liabilities (joint or several) to which they may become subject under the Securities Act, the Exchange Act or other federal or state
law, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any of the following statements, omissions or violations (collectively a “Violation”) by the Company:
(i) any untrue statement or alleged untrue statement of a material fact contained in such registration statement or incorporated reference therein, including any preliminary prospectus or final prospectus contained therein or any amendments or
supplements thereto, (ii) the omission or alleged omission to state therein a material fact required to be stated therein, or necessary to make the statements therein not misleading, or (iii) any violation or alleged violation by the
Company of the Securities Act, the Exchange Act, any state securities law or any rule or regulation promulgated under the Securities Act, the Exchange Act or any state securities law in connection with the offering covered by such registration
statement; and the Company will reimburse each such Holder, partner, member, officer, director, underwriter or controlling person for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action; provided however, that the indemnity agreement contained in this Section 2.8(a) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such
settlement is effected without the consent of the Company, which consent shall not be unreasonably withheld, nor shall the Company be liable in any such case for any such loss, claim, damage, liability or action to the extent that it arises out of
or is based upon a Violation which occurs in reliance upon and in conformity with written information furnished expressly for use in connection with such registration by such Holder, partner, member, officer, director, underwriter or controlling
person of such Holder. 
 (b)    To the extent permitted by law, each Holder will, if Registrable
Securities held by such Holder are included in the securities as to which such registration qualifications or compliance is being effected, severally and not jointly, indemnify and hold harmless the Company, each of its directors, its officers and
each person, if any, who controls the Company within the meaning of the Securities Act, any underwriter and any other Holder selling securities under such registration statement or any of such other Holder’s partners, directors or officers or
any person who controls such Holder, against any losses, claims, damages or liabilities to which the Company or any such director, officer, controlling person, underwriter or other such Holder, or partner, director, officer or controlling person of
such other Holder may become subject under the Securities Act, the Exchange Act or other federal or state law, insofar as such losses, claims, damages or liabilities (or actions in respect thereto) arise out of or are based upon any of the following
statements: (i) any untrue statement or alleged untrue statement of a material fact contained in such registration statement or incorporated reference therein, including any 

  
 11. 

 
preliminary prospectus or final prospectus contained therein or any amendments or supplements thereto, (ii) the omission or alleged omission to state therein a material fact required to be
stated therein, or necessary to make the statements therein not misleading, or (iii) any violation or alleged violation by the Company of the Securities Act (collectively, a “Holder Violation”), in each case to the
extent (and only to the extent) that such Holder Violation occurs in reliance upon and in conformity with written information furnished by such Holder under an instrument duly executed by such Holder and stated to be specifically for use in
connection with such registration; and each such Holder will reimburse any legal or other expenses reasonably incurred by the Company or any such director, officer, controlling person, underwriter or other Holder, or partner, officer, director or
controlling person of such other Holder in connection with investigating or defending any such loss, claim, damage, liability or action if it is judicially determined that there was such a Holder Violation; provided, however, that the
indemnity agreement contained in this Section 2.8(b) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the consent of the Holder, which consent shall not be
unreasonably withheld; provided further, that in no event shall any indemnity under this Section 2.8 exceed the net proceeds from the offering received by such Holder. 

(c)    Promptly after receipt by an indemnified party under this Section 2.8 of notice of the
commencement of any action (including any governmental action), such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this Section 2.8, deliver to the indemnifying party a written notice
of the commencement thereof and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume the defense thereof with
counsel mutually satisfactory to the parties; provided, however, that an indemnified party shall have the right to retain its own counsel, with the fees and expenses thereof to be paid by the indemnifying party, if representation of
such indemnified party by the counsel retained by the indemnifying party would be inappropriate due to actual or potential differing interests between such indemnified party and any other party represented by such counsel in such proceeding. The
failure to deliver written notice to the indemnifying party within a reasonable time of the commencement of any such action shall relieve such indemnifying party of any liability to the indemnified party under this Section 2.8 to the extent,
and only to the extent, prejudicial to its ability to defend such action, but the omission so to deliver written notice to the indemnifying party will not relieve it of any liability that it may have to any indemnified party otherwise than under
this Section 2.8. 
 (d)    If the indemnification provided for in this Section 2.8 is
held by a court of competent jurisdiction to be unavailable to an indemnified party with respect to any losses, claims, damages or liabilities referred to herein, the indemnifying party, in lieu of indemnifying such indemnified party thereunder,
shall to the extent permitted by applicable law contribute to the amount paid or payable by such indemnified party as a result of such loss, claim, damage or liability in such proportion as is appropriate to reflect the relative fault of the
indemnifying party on the one hand and of the indemnified party on the other in connection with the Violation(s) or Holder Violation(s) that resulted in such loss, claim, damage or liability, as well as any other relevant equitable considerations.
The relative fault of the indemnifying party and of the indemnified party shall be determined by a court of law by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a

  
 12. 

 
material fact relates to information supplied by the indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission; provided, that in no event shall any contribution by a Holder hereunder exceed the net proceeds from the offering received by such Holder. 

(e)    The obligations of the Company and Holders under this Section 2.8 shall survive
completion of any offering of Registrable Securities in a registration statement and, with respect to liability arising from an offering to which this Section 2.8 would apply that is covered by a registration filed before termination of this
Agreement, such termination. No indemnifying party, in the defense of any such claim or litigation, shall, except with the consent of each indemnified party, consent to entry of any judgment or enter into any settlement which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party of a release from all liability in respect to such claim or litigation. 

2.9    Assignment of Registration Rights. The rights to cause the Company to register
Registrable Securities pursuant to this Section 2 may be assigned by a Holder to a transferee or assignee of Registrable Securities (for so long as such shares remain Registrable Securities) that (a) is a subsidiary, parent, general
partner, limited partner, former partner, member or former member of a Holder that is a corporation, partnership or limited liability company, (b) is a Holder’s family member or trust for the benefit of an individual Holder,
(c) acquires at least 50,000 shares of Registrable Securities (as adjusted for stock splits and combinations) or (d) is a fund that is controlled by or under common control with one or more current or former general partners or managing
members of, or shares the same management company with, the Holder; provided, however, (i) the transferor shall, promptly furnish to the Company written notice of the name and address of such transferee or assignee and the securities with
respect to which such registration rights are being assigned and (ii) such transferee shall agree to be subject to all restrictions set forth in this Agreement. 

2.10    Limitation on Subsequent Registration Rights. Other than as provided in
Section 5.10, after the date of this Agreement, the Company shall not, without the written consent of Holders of at least a majority of the Registrable Securities then outstanding, enter into any agreement with any holder or prospective holder
of any securities of the Company that would grant such holder rights to demand the registration of shares of the Company’s capital stock, or to include such shares in a registration statement that would reduce the number of shares includable by
the Holders. 
 2.11    “Market Stand-Off”
Agreement. Each Holder hereby agrees that such Holder shall not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale,
any shares of Common Stock (or other securities of the Company) held by such Holder (other than those included in the registration) during the 180-day period following the effective date of the Initial
Offering (or such longer period as the underwriters or the Company shall request in order to facilitate compliance with NASD Rule 2711 or NYSE Member Rule 472 or any successor or similar rule or regulation); provided, that all officers and
directors of the Company and holders of at least 2% of the Company’s voting securities are bound by and have entered into similar agreements. The underwriters in connection with such Initial Offering are intended third-party beneficiaries of
this Section 2.11 and shall have the right, power and authority to enforce the 

  
 13. 

 
provisions hereof as though they were a party hereto. To the extent that any person who is subject to market stand-off obligations is released early by the
managing underwriter from such market stand-off obligations, then each Holder shall also receive a pro rata release, based on the number of shares subject to such agreements, from their respective market stand-off obligations, except that, notwithstanding the foregoing, the Company and the underwriters may, in their sole discretion, waive or terminate these restrictions with respect to up to one percent of the
Company’s total outstanding securities (determined as of the date of the Initial Offering, and giving effect to, the Initial Offering). 

2.12    Agreement to Furnish Information. Each Holder agrees to execute and deliver such
other agreements as may be reasonably requested by the Company or the managing underwriters that are consistent with the Holder’s obligations under Section 2.11 or that 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), each Holder shall provide, within 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 Section 2.11 and this Section 2.12
shall not apply to a Special Registration Statement. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to such shares of Common Stock (or other securities of the Company) until the end of such
period. Each Holder agrees that any transferee of any shares of Registrable Securities shall be bound by Sections 2.11 and 2.12. The underwriters of the Company’s stock are intended third party beneficiaries of Sections 2.11 and 2.12 and shall
have the right, power and authority to enforce the provisions hereof as though they were a party hereto. 

2.13    Rule 144 Reporting. With a view to making available to the Holders the benefits of
certain rules and regulations of the SEC which may permit the sale of the Registrable Securities to the public without registration, the Company agrees to use its best efforts to: 

(a)    Make and keep public information available, as those terms are understood and defined in
Rule 144 or any similar or analogous rule promulgated under the Securities Act, at all times after the effective date of the first registration filed by the Company for an offering of its securities to the general public; 

(b)    File with the SEC, in a timely manner, all reports and other documents required of the
Company under the Securities Act and Exchange Act (at any time after it has become subject to such reporting requirements); and 

(c)    So long as a Holder owns any Registrable Securities, furnish to such Holder forthwith upon
request: (i) a written statement by the Company as to its compliance with the reporting requirements of Rule 144, the Securities Act and of the Exchange Act (at any time after it has become subject to such reporting requirements); (ii) a copy
of the most recent annual or quarterly report of the Company filed with the Commission; and (iii) such other reports and documents as a Holder may reasonably request in connection with availing itself of any rule or regulation of the SEC
allowing it to sell any such securities without registration. 

  
 14. 

 2.14    Termination of Registration
Rights. The right of any Holder to request registration or inclusion of Registrable Securities in any registration pursuant to Section 2.2, Section 2.3, or Section 2.4 hereof shall terminate upon the earlier of: (i) the date
three years following an initial public offering that results in the conversion of all outstanding shares of Preferred Stock; or (ii) as to any particular Holder, following the Qualified IPO (as defined in the Company’s Sixth Amended and
Restated Certificate of Incorporation (the “Restated Charter”)), at such time as all Registrable Securities issuable or issued upon conversion of the Shares held by and issuable to such Holder (and its affiliates) may be sold
pursuant to Rule 144 during any 90-day period. Upon such termination, such shares shall cease to be “Registrable Securities” hereunder for all purposes. 

SECTION 3. COVENANTS OF THE COMPANY. 

3.1    Basic Financial Information and Reporting. 

(a)    The Company will maintain true books and records of account in which full and correct entries
will be made of all its business transactions pursuant to a system of accounting established and administered in accordance with generally accepted accounting principles consistently applied (except as noted therein or as disclosed to the recipients
thereof), and will set aside on its books all such proper accruals and reserves as shall be required under generally accepted accounting principles consistently applied. 

(b)    So long as an Investor (with its affiliates) shall own not less than 2,000,000 shares of
Registrable Securities (as adjusted for stock splits and combinations) (a “Major Investor”), to the extent requested by a Major Investor, as soon as practicable after the end of each fiscal year of the Company, and in any
event within 90 days thereafter, the Company will furnish such Major Investor a balance sheet of the Company, as at the end of such fiscal year, and a statement of income, shareholders’ equity and a statement of cash flows of the Company, for
such year, all prepared in accordance with generally accepted accounting principles consistently applied (except as noted therein or as disclosed to the recipients thereof) and setting forth in each case in comparative form the figures for the
previous fiscal year, all in reasonable detail. Such financial statements shall be accompanied by a report and opinion thereon by independent public accountants of national standing selected by the Board. 

(c)    To the extent requested by a Major Investor, the Company will furnish such Major Investor,
as soon as practicable after the end of each quarterly accounting period in each fiscal year of the Company, and in any event within 60 days thereafter, a balance sheet of the Company as of the end of each such period, and a statement of income and
a statement of cash flows of the Company for such period, prepared in accordance with generally accepted accounting principles consistently applied (except as noted therein or as disclosed to the recipients thereof), with the exception that no notes
need be attached to such statements and year-end audit adjustments may not have been made. 

(d)    To the extent requested by a Major Investor, the Company will furnish each such Major
Investor, as soon as practicable prior to the end of each fiscal year of the Company, and in any event at least 45 days prior to the beginning of the next fiscal year, an 

  
 15. 

 
annual budget and operating plans for the next fiscal year (and as soon as available, any subsequent written revisions thereto). 

(e)    To the extent requested by a Major Investor, the Company will furnish each such Major
Investor, as soon as practicable, but in any event within 45 days after the end of each of fiscal quarter of the Company, a statement showing the number of shares of each class and series of capital stock and securities convertible into or
exercisable for shares of capital stock outstanding at the end of the period, the Common Stock issuable upon conversion or exercise of any outstanding securities convertible or exercisable for Common Stock and the exchange ratio or exercise price
applicable thereto, and the number of shares of issued stock options and stock options not yet issued but reserved for issuance, if any, all in sufficient detail as to permit the Major Investors to calculate their respective percentage equity
ownership in the Company, and certified by the chief financial officer or chief executive officer of the Company as being true, complete, and correct. 

(f)    Such other information relating to the financial condition, business or corporate affairs of
the Company as the Major Investor may from time to time reasonably request; provided, however, that the Company shall not be obligated under this subsection (f) or any other subsection of Section 3.1 to provide information that (A) it
deems in good faith to be a trade secret or similar confidential information or (B) the disclosure of which would adversely affect the attorney-client privilege between the Company and its counsel. 

3.2    Observer Rights. 

(a)    As long as Foresite Capital Fund IV, L.P. or any of its affiliates
(“Foresite”), in the aggregate, owns at least 2,464,512 shares of Series D Preferred Stock, the Company shall invite a representative of Foresite to attend all meetings of the Board in a nonvoting observer capacity and, in
this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors; provided, however, that such representative shall agree to hold in confidence and trust and
to act in a fiduciary manner with respect to all information so provided; and provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if
access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest, or if such Investor or its
representative is a competitor of the Company. 
 (b)    As long as venBio Global Strategic Fund
II, L.P. or any of its affiliates (“venBio”), in the aggregate, owns at least 2,464,512 shares of Series D Preferred Stock, the Company shall invite a representative of venBio to attend all meetings of the Board in a
nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors; provided, however, that such representative shall agree
to hold in confidence and trust and to act in a fiduciary manner with respect to all information so provided; and provided further, that the Company reserves the right to withhold any information and to exclude such representative from
any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in 

  
 16. 

 
disclosure of trade secrets or a conflict of interest, or if such Investor or its representative is a competitor of the Company. 

(c)    As long as HBM or any of its affiliates (“HBM”), in the aggregate,
owns at least 1,643,008 shares of Series D Preferred Stock, the Company shall invite a representative of HBM to attend all meetings of the Board in a nonvoting observer capacity and, in this respect, shall give such representative copies of all
notices, minutes, consents, and other materials that it provides to its directors; provided, however, that such representative shall agree to hold in confidence and trust and to act in a fiduciary manner with respect to all information
so provided; and provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could
adversely affect the attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest, or if such Investor or its representative is a competitor of the Company. 

(d)    As long as NexTech V GP S.À.R.L. or any of its affiliates
(“NexTech”), in the aggregate, owns at least 1,232,256 shares of Series D Preferred Stock, the Company shall invite a representative of NexTech to attend all meetings of the Board in a nonvoting observer capacity and, in this
respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors; provided, however, that such representative shall agree to hold in confidence and trust and to act
in a fiduciary manner with respect to all information so provided; and provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access
to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest, or if such Investor or its representative
is a competitor of the Company. 
 (e)    As long as Cormorant Global Healthcare Master Fund, LP,
Cormorant Private Healthcare Fund I, LP and CRMA SPV, LP or any of their affiliates (collectively “Cormorant”), in the aggregate, owns at least 2,157,405 shares of Series C Preferred Stock, the Company shall invite a
representative of Cormorant to attend all meetings of the Board in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors;
provided, however, that such representative shall agree to hold in confidence and trust and to act in a fiduciary manner with respect to all information so provided; and provided further, that the Company reserves the
right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its
counsel or result in disclosure of trade secrets or a conflict of interest, or if such Investor or its representative is a competitor of the Company. 

(f)    The Company shall invite a representative designated by the holders of a majority of the
Series A Preferred Stock and Series B Preferred Stock, voting together as a single class on an as converted to Common Stock basis (the “Series A/B Holders”), to attend all meetings of the Board in a nonvoting observer
capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its 

  
 17. 

 
directors; provided, however, that such representative shall agree to hold in confidence and trust and to act in a fiduciary manner with respect to all information so provided; and
provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect
the attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest, or if such Investor or its representative is a competitor of the Company. Upon the completed filing of a
confidential draft registration statement with the SEC with respect to the Company’s first firm-commitment underwritten public offering, the holders of a majority of the Series A Preferred Stock and Series B Preferred Stock, voting together as
a single class on an as converted to Common Stock basis, shall be entitled to designate up to two representatives to attend all meetings of the Board in a nonvoting observer capacity and consistent with the other terms described in the first
sentence of this section. 
 3.3    Inspection Rights. Each Major Investor shall have the
right to visit and inspect any of the properties of the Company or any of its subsidiaries, and to discuss the affairs, finances and accounts of the Company or any of its subsidiaries with its officers, and to review such information as is
reasonably requested all at such reasonable times and as often as may be reasonably requested; provided, however, that the Company shall not be obligated under this Section 3.3 with respect to a competitor of the Company or with
respect to information which the Board determines in good faith is confidential (unless covered by an enforceable confidentiality agreement in form acceptable to the Company) or attorney-client privileged and should not, therefore, be disclosed.

 3.4    Confidentiality of Records. Each Investor agrees to use the same degree of care
as such Investor uses to protect its own confidential information to keep confidential any information furnished to such Investor that the Company identifies as being confidential or proprietary (so long as such information is not in the public
domain), except that such Investor may disclose such proprietary or confidential information (i) to any partner, subsidiary or parent of such Investor as long as such partner, subsidiary or parent is advised of and agrees or has agreed to be
bound by the confidentiality provisions of this Section 3.4 or comparable restrictions; (ii) at such time as it enters the public domain through no fault of such Investor; (iii) that is communicated to it free of any obligation of
confidentiality; (iv) that is developed by Investor or its agents independently of and without reference to any confidential information communicated by the Company; or (v) as required by applicable law. 

3.5    Reservation of Common Stock. The Company will at all times reserve and keep
available, solely for issuance and delivery upon the conversion of the Preferred Stock, all Common Stock issuable from time to time upon such conversion. 

3.6    Stock Vesting. Unless otherwise approved by the Board, all stock options and other
stock equivalents issued after the date of this Agreement to employees, directors, consultants and other service providers shall be subject to vesting as follows: (a) 25% of such stock shall vest at the end of the first year following the earlier of
the date of issuance or such person’s services commencement date with the Company, and (b) 75% of such stock shall vest over the next three years on a pro rata basis each month thereafter. 

  
 18. 

 3.7    Employment Agreements. The Company
will cause each Key Employee to enter into an employment agreement containing nonsolicitation provisions, substantially in the form approved by the Board (including the affirmative approval by a majority of the Preferred Directors (as that term is
defined in the Company’s Fourth Amended and Restated Voting Agreement dated as of the date hereof (the “Voting Agreement”))). In addition, the Company shall not amend, modify, terminate, waive, or otherwise alter, in
whole or in part, any of such employment agreements or any restricted stock agreement between the Company and any employee, without the approval by the Board (including the affirmative approval by a majority of the Preferred Directors).
“Key Employee” means any executive-level employee (including, division director and vice president-level positions) as well as any employee who, either alone or in concert with others, develops, invents, programs, or designs
any Company Intellectual Property (as defined in the Purchase Agreement). 
 3.8    Director
and Officer Insurance. Within 60 days following the date hereof, the Company shall obtain and thereafter maintain in full force and effect director and officer liability insurance of at least $5,000,000 and with customary terms for similarly
situated companies. 
 3.9    Key-Person
Insurance. Within 60 days following the date hereof, and subject to the approval of the Board, the Company shall use its best efforts to obtain “key person” insurance on Jingrong Jean Cui and Athena Maria Countouriotis, in an amount
and on terms and conditions satisfactory to the Board (including the affirmative approval by a majority of the Preferred Directors), and the Company will use commercially reasonable efforts to cause such insurance policy to be maintained until such
time as the Board (including the affirmative approval by a majority of the Preferred Directors), determines that such insurance should be discontinued. 

3.10    Proprietary Information and Inventions Agreement. The Company shall require all
current officers, employees and consultants to execute and deliver a Proprietary Information and Inventions Agreement substantially in a form approved by the Board. 

3.11    Company Subsidiaries. Each Series D Investor and each holder of Series C Preferred
Stock (each, a “Series C/D Investor” and collectively, the “Series C/D Investors”) shall have the right of first refusal to participate, on a pro rata basis, in any transaction concerning the formation
or financing of any subsidiary or joint venture to be formed by the Company or its affiliates in China or in any other jurisdictions on a pro rata basis (the numerator of which is the number of shares of Common Stock issued or issuable upon the
conversion or exercise of the Series C Preferred Stock and Series D Preferred Stock then outstanding or other rights to acquire shares of the Series C Preferred Stock and Series D Preferred Stock held by the participating Series C/D Investor, as
applicable, and the denominator of which is the total number of shares of Common Stock issued or issuable upon the conversion or exercise of the Series C Preferred Stock and Series D Preferred Stock then outstanding or other rights to acquire shares
of the Series C Preferred Stock and Series D Preferred Stock held by all participating Series C/D Investors). The Series C/D Investors agree that Lilly Asia Ventures, Foresite and venBio shall be the co-lead
investors in such transactions. 
 3.12    Assignment of Right of First Refusal. In the
event the Company elects not to exercise any right of first refusal or right of first offer the Company may have on a proposed 

  
 19. 

 
transfer of any of the Company’s outstanding capital stock pursuant to the Company’s charter documents, the Company’s Bylaws, by contract or otherwise, the Company shall, except to
the extent prohibited by law, assign such right of first refusal or right of first offer to each Investor. In the event of such assignment, each Investor shall have a right to purchase its pro rata portion of the capital stock proposed to be
transferred. Each Investor’s pro rata portion shall be equal to the product obtained by multiplying (i) the aggregate number of shares proposed to be transferred by (ii) a fraction, the numerator of which is the number of shares of
Registrable Securities held by such Investor at the time of the proposed transfer and the denominator of which is the total number of Registrable Securities owned by all Investors at the time of such proposed transfer. 

3.13    Approvals. 

(a)    Matters Requiring Consent of Preferred Stock. The Company shall not, without the vote
or written consent of (A) for so long as at least 5,000,000 shares of Series B Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares after the filing date hereof)
remain outstanding, the holders of at least a majority of the outstanding shares of Series B Preferred Stock, which majority must include holders of a majority of the Series B Preferred Stock held by stockholders who do not also hold Series A
Preferred Stock, (B) for so long as at least 3,883,403 shares of Series C Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares after the filing date hereof)
remain outstanding, the holders of at least 60% of the Series C Preferred Stock and (C) for so long as at least 5,257,625 shares of Series D Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the
like with respect to such shares after the filing date hereof) remain outstanding, the holders of at least 65% of the Series D Preferred Stock, in addition to any other vote or consent required herein or by law: 

(i)     amend, alter, or repeal (whether by merger, recapitalization, or otherwise) any
provision of the Restated Charter or the Bylaws of the Company in any manner that alters, changes, or adversely affects the voting or other powers, preferences, or other special rights, privileges or restrictions of the Preferred Stock; 

(ii)    authorize, create (by reclassification or otherwise), designate or issue any new class or
series of Shares or securities convertible into such class or series of shares having rights, preferences or privileges senior to, or pari passu with, the Preferred Stock, including any redemption, liquidation preference, voting or dividend rights;

 (iii)    increase or decrease the number of directors of the Company; 

(iv)    liquidate, dissolve or wind-up the business and
affairs of the Company; 
 (v)     effect a reclassification, reorganization or
recapitalization of the outstanding capital stock of the Company; or 
 (vi)    consent, agree
or commit to any of the foregoing. 

  
 20. 

 (b)    Board Approvals. Approval of the
Board, which approval must include at least a majority of the Preferred Directors (including the affirmative approval by a majority of the Preferred Directors) shall be required prior to the Company taking any of the following actions: 

(i)       making any capital commitment or expenditure in excess of USD$250,000;

 (ii)      providing any loans; 

(iii)     expanding or altering the Company’s business from that provided in the Company
business plan; 
 (iv)     hiring or terminating any officers or financial controller; 

(v)      approving or amending the annual business plan or budget; 

(vi)     entering into any joint venture or material alliance; or 

(vii)    entering into any transaction with any employee outside the ordinary course of business,
including the compensation (in cash or equity) of the founders, officers, and directors of the Company. 

(c)    Matters Requiring Consent of the Preferred Directors. For so long as (i) at
least 5,257,625 shares of Series D Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares after the filing date hereof) remain outstanding and provided that the Series D
Directors (as defined in the Voting Agreement) are not unavailable for a Board meeting for a period of more than 45 days from the date of a Board meeting notice regarding the items provided below, (ii) at least 6,000,000 shares of Series C
Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares after the filing date hereof) remain outstanding and provided that the Series C Directors and the Series B/C
Director (as such terms are defined in the Voting Agreement) are not unavailable for a Board meeting for a period of more than 45 days from the date of a Board meeting notice regarding the items provided below, and (iii) at least 5,000,000
shares of Series B Preferred Stock (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like with respect to such shares after the filing date hereof) remain outstanding and provided that the Series B Director (as
that term is defined in the Voting Agreement) is not unavailable for a Board meeting for a period of more than 45 days from the date of a Board meeting notice regarding the items provided below, the Company shall not, without the prior approval of
the Board, including the approval of a majority of the Preferred Directors: 
 (i)    increase
or decrease (other than for decreases resulting from conversion of the shares of Preferred Stock) the number of authorized shares of Preferred Stock or any series thereof; 

(ii)    increase or decrease the size of the Board; 

  
 21. 

 (iii)    increase the number of shares reserved
under the Company’s stock plan; 
 (iv)    enter into, permit, or agree to any transaction
or series of transactions which would involve a Liquidation Event, Asset Transfer or Acquisition (as those terms are defined in the Restated Charter); 

(v)     authorize, declare, or pay any dividend with respect to any shares of the capital
stock of the Company; 
 (vi)    redeem, purchase or otherwise acquire (or pay into or set aside
for a sinking fund for such purpose), directly or indirectly, any share or shares of Preferred Stock or Common Stock; provided, however, that this restriction shall not apply to the repurchase of shares of Common Stock from employees, officers,
directors, consultants or other persons performing services for this corporation or any subsidiary pursuant to agreements under which this corporation has the option to repurchase such shares upon the occurrence of certain events, such as the
termination of employment or service, or pursuant to a right of first refusal; or 

(vii)    make any loans or advances to officers, directors, employees, or consultants of the
Company except (x) in the ordinary course of business in connection with compensation and expenses, or (y) under full-recourse secured promissory notes for the purchase of stock, on terms and conditions approved by the Board, or encumber
fifty percent (50%) or more of the Company’s assets. 
 (d)    In the event of any conflict
between the protective provisions in the Restated Charter and the protective provisions contained herein, (i) the protective provisions contained herein shall govern, and (ii) the Restated Charter shall be amended to the extent permitted
by relevant law to resolve such conflict. 
 3.14    Directors’ Liability and
Indemnification. The Restated Charter and Bylaws shall provide (a) for elimination of the liability of directors to the maximum extent permitted by law and (b) for indemnification of directors for acts on behalf of the Company to the
maximum extent permitted by law. In addition, the Company shall enter into and use its best efforts to at all times maintain indemnification agreements in a form approved by the Board. 

3.15    Termination of Covenants. All covenants of the Company contained in Section 3
of this Agreement (other than the provisions of Sections 3.3, 3.8 and 3.14) shall expire and terminate as to each Investor upon the earlier of (i) the effective date of the registration statement pertaining to a Qualified IPO or (ii) upon
an Acquisition or Asset Transfer (each as defined in the Restated Charter). 
 SECTION 4. RIGHTS OF FIRST REFUSAL. 

4.1    Subsequent Offerings. Subject to applicable securities laws, each Investor shall have
a right of first refusal to purchase its pro rata share of all Equity Securities, as defined below, that the Company may, from time to time, propose to sell and issue after the date of this Agreement, other than the Equity Securities excluded
by Section 4.6 hereof. Each Investor’s pro rata share is equal to the ratio of (a) the number of shares of the Common Stock (including all 

  
 22. 

 
shares of Common Stock issuable or issued upon conversion of the Shares or upon the exercise of outstanding warrants or options) of which such Investor is deemed to be a holder immediately prior
to the issuance of such Equity Securities to (b) the total number of shares of Common Stock outstanding (including all shares of Common Stock issued or issuable upon conversion of the Shares or upon the exercise of any outstanding warrants or
options) immediately prior to the issuance of the Equity Securities. The term “Equity Securities” shall mean (i) any Common Stock, Preferred Stock or other security of the Company, (ii) any security convertible into
or exercisable or exchangeable for, with or without consideration, any Common Stock, Preferred Stock or other security (including any option to purchase such a convertible security), (iii) any security carrying any warrant or right to subscribe to
or purchase any Common Stock, Preferred Stock or other security or (iv) any such warrant or right. 

4.2    Exercise of Rights. If the Company proposes to issue any Equity Securities, it shall
give each Investor written notice of its intention, describing the Equity Securities, the price and the terms and conditions upon which the Company proposes to issue the same. Each Investor shall have 15 days from the giving of such notice to agree
to purchase its pro rata share of the Equity Securities for the price and upon the terms and conditions specified in the notice by giving written notice to the Company and stating therein the quantity of Equity Securities to be purchased.
Notwithstanding the foregoing, the Company shall not be required to offer or sell such Equity Securities to any Investor who would cause the Company to be in violation of applicable federal securities laws by virtue of such offer or sale. 

4.3    Issuance of Equity Securities to Other Persons. If not all of the Investors elect to
purchase their pro rata share of the Equity Securities, then the Company shall promptly notify in writing the Investors who do so elect and shall offer such Investors the right to acquire such unsubscribed shares on a pro rata basis.
The Investors shall have five days after receipt of such notice to notify the Company of its election to purchase all or a portion thereof of the unsubscribed shares. The Company shall have 90 days thereafter to sell the Equity Securities in respect
of which the Investor’s rights were not exercised, at a price not lower and upon general terms and conditions not materially more favorable to the purchasers thereof than specified in the Company’s notice to the Investors pursuant to
Section 4.2 hereof. If the Company has not sold such Equity Securities within 90 days of the notice provided pursuant to Section 4.2, the Company shall not thereafter issue or sell any Equity Securities, without first offering such
securities to the Investors in the manner provided above. 
 4.4    Termination and Waiver of
Rights of First Refusal. The rights of first refusal established by this Section 4 shall not apply to, and shall terminate upon the earlier of (i) immediately after a Qualified IPO or (ii) an Acquisition or Asset Transfer.
Notwithstanding Section 4.5 hereof, the rights of first refusal established by this Section 4 may be amended, or any provision waived with and only with the written consent of the Company and the Investors holding at least a majority
of the Registrable Securities held by all Investors, which majority must include (i) holders of at least 65% of the Series D Preferred Stock, (ii) holders of at least 60% of the Series C Preferred Stock and (iii) holders of a majority
of the Series B Preferred Stock held by stockholders who do not also hold Series A Preferred Stock, or as permitted by Section 4.5. 

  
 23. 

 4.5    Assignment of Rights of First
Refusal. The rights of first refusal of each Investor under this Section 4 may be assigned to the same parties, subject to the same restrictions as any transfer of registration rights pursuant to Section 2.9. 

4.6    Excluded Securities. The rights of first refusal established by this Section 4
shall have no application to any of the following Equity Securities: 
 (a)    the Shares and the
shares of Common Stock issued upon the conversion of the Shares; 
 (b)    shares of Common Stock
or Convertible Securities (as defined in the Restated Charter) issued to employees, officers or directors of, or consultants or advisors to the Company or any subsidiary, pursuant to stock purchase or stock option plans or other arrangements that
are approved by the Board (including the affirmative approval by a majority of the Preferred Directors); 

(c)    stock issued or issuable pursuant to any rights or agreements, options, warrants or
Convertible Securities outstanding as of the date of this Agreement; and stock issued pursuant to any such rights or agreements granted after the date of this Agreement, so long as the rights of first refusal established by this Section 4 were
complied with, waived, or were inapplicable pursuant to any provision of this Section 4.6 with respect to the initial sale or grant by the Company of such rights or agreements; 

(d)    any Equity Securities issued in connection with any stock split, stock dividend, stock
distribution or recapitalization by the Company; 
 (e)    any Equity Securities issued for
consideration other than cash pursuant to a merger, consolidation, acquisition, strategic alliance or similar business combination approved by the Board (including the affirmative approval by a majority of the Preferred Directors); 

(f)    any Equity Securities issued pursuant to any equipment loan or leasing arrangement, real
property leasing arrangement or debt financing from a bank or similar financial or lending institution approved by the Board (including the affirmative approval by a majority of the Preferred Directors); 

(g)    any Equity Securities issued in connection with strategic transactions (e.g. joint ventures,
manufacturing, marketing, distribution, technology transfer or development arrangements) involving the Company and other entities approved by the Board (including the affirmative approval by a majority of the Preferred Directors); 

(h)    any Equity Securities that are issued by the Company pursuant to a registration statement
filed under the Securities Act; or 
 (i)    any Equity Securities issued by the Company pursuant
to the terms of Section 2.3 of the Purchase Agreement. 

  
 24. 

 SECTION 5. MISCELLANEOUS. 

5.1    Governing Law. This Agreement shall be governed by and construed under the laws of the
State of California in all respects as such laws are applied to agreements among California residents entered into and to be performed entirely within California, without reference to conflicts of laws or principles thereof. The parties agree that
any action brought by either party under or in relation to this Agreement, including without limitation to interpret or enforce any provision of this Agreement, shall be brought in, and each party agrees to and does hereby submit to the jurisdiction
and venue of, any state or federal court located in the County of San Diego, State of California. 

5.2    Successors and Assigns. Except as otherwise expressly provided herein, the provisions
hereof shall inure to the benefit of, and be binding upon, the parties hereto and their respective successors, assigns, heirs, executors, and administrators and shall inure to the benefit of and be enforceable by each person who shall be a holder of
Registrable Securities from time to time; provided, however, that prior to the receipt by the Company of adequate written notice of the transfer of any Registrable Securities specifying the full name and address of the transferee, the
Company may deem and treat the person listed as the holder of such shares in its records as the absolute owner and holder of such shares for all purposes, including the payment of dividends or any redemption price. 

5.3    Entire Agreement. This Agreement, the Exhibits and Schedules hereto, the Purchase
Agreement and the other documents delivered pursuant thereto constitute the full and entire understanding and agreement between the parties with regard to the subjects hereof and no party shall be liable or bound to any other in any manner by any
oral or written representations, warranties, covenants and agreements except as specifically set forth herein and therein. Each party expressly represents and warrants that it is not relying on any oral or written representations, warranties,
covenants or agreements outside of this Agreement. 
 5.4    Severability. In the event
one or more of the provisions of this Agreement should, for any reason, be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provisions of this Agreement, and
this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never been contained herein. 

5.5    Amendment and Waiver. 

(a)    Except as otherwise expressly provided, this Agreement may be amended or modified, and the
obligations of the Company and the rights of the Holders under this Agreement may be waived, only upon the written consent of the Company and the holders of at least a majority of the Registrable Securities then outstanding, which majority must
include (i) holders of at least 65% of the Series D Preferred Stock, (ii) holders of at least 60% of the Series C Preferred Stock and (iii) holders of a majority of the Series B Preferred Stock held by stockholders who do not also
hold Series A Preferred Stock, provided that any provision hereof may be waived by any waiving party on such party’s own behalf, without the consent of any other party. Notwithstanding the foregoing, this Agreement may not be amended or
terminated and the observance of any term hereof may not be waived with respect to any Investor without 

  
 25. 

 
the written consent of such Investor, unless such amendment, termination, or waiver applies to all Investors in the same fashion (it being agreed that a waiver of the provisions of
Section 4 with respect to a particular transaction shall be deemed to apply to all Investors in the same fashion if such waiver does so by its terms, notwithstanding the fact that certain Investors may nonetheless, by
agreement with the Company, purchase securities in such transaction). Notwithstanding the foregoing, Section 3.2(a) of this Agreement shall not be amended, modified or terminated and the observance of any term hereof may
not be waived without the written consent of Foresite; Section 3.2(b) of this Agreement shall not be amended, modified or terminated and the observance of any term hereof may not be waived without the written consent of
venBio; Section 3.2(c) of this Agreement shall not be amended, modified or terminated and the observance of any term hereof may not be waived without the written consent of HBM; Section 3.2(d) of
this Agreement shall not be amended, modified or terminated and the observance of any term hereof may not be waived without the written consent of NexTech; Section 3.2(e) of this Agreement shall not be amended, modified or
terminated and the observance of any term hereof may not be waived without the written consent of Cormorant; and Section 3.2(f) of this Agreement shall not be amended, modified or terminated and the observance of any term
hereof may not be waived without the written consent of the Series A/B Holders. 
 (b)    The
Company shall give prompt notice of any amendment or termination hereof or waiver hereunder to any party hereto that did not consent in writing to such amendment, termination, or waiver. Any amendment, termination, or waiver effected in accordance
with this Section 5.5 shall be binding on all parties hereto, regardless of whether any such party has consented thereto. No waivers of or exceptions to any term, condition, or provision of this Agreement, in any one or more instances, shall be
deemed to be or construed as a further or continuing waiver of any such term, condition, or provision. 

(c)    For the purposes of determining the number of Holders or Investors entitled to vote or
exercise any rights hereunder, the Company shall be entitled to rely solely on the list of record holders of its stock as maintained by or on behalf of the Company. 

5.6    Delays or Omissions. It is agreed that no delay or omission to exercise any right,
power, or remedy accruing to any party, upon any breach, default or noncompliance by another party under this Agreement shall impair any such right, power, or remedy, nor shall it be construed to be a waiver of any such breach, default or
noncompliance, or any acquiescence therein, or of any similar breach, default or noncompliance thereafter occurring. It is further agreed that any waiver, permit, consent, or approval of any kind or character on any party’s part of any breach,
default or noncompliance under the Agreement or any waiver on such party’s part of any provisions or conditions of this Agreement must be in writing and shall be effective only to the extent specifically set forth in such writing. All remedies,
either under this Agreement, by law, or otherwise afforded to any party, shall be cumulative and not alternative. 

5.7    Notices. All notices required or permitted hereunder shall be in writing and shall be
deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed electronic mail or facsimile if sent during normal business hours of the recipient; if not, then on the next business day,
(c) five days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d) one day after deposit with a nationally recognized overnight courier, specifying next day delivery, with written
verification of receipt. 

  
 26. 

 
All communications shall be sent to the party to be notified at the address as set forth on the signature pages hereof or Exhibit A hereto or at such other address or electronic mail address as
such party may designate by 10 days advance written notice to the other parties hereto. 

5.8    Attorneys’ Fees. In the event that any suit or action is instituted under or in
relation to this Agreement, including without limitation to enforce any provision in this Agreement, the prevailing party in such dispute shall be entitled to recover from the losing party all fees, costs and expenses of enforcing any right of such
prevailing party under or with respect to this Agreement, including without limitation, such reasonable fees and expenses of attorneys and accountants, which shall include, without limitation, all fees, costs and expenses of appeals. 

5.9    Titles and Subtitles. The titles of the sections and subsections of this Agreement
are for convenience of reference only and are not to be considered in construing this Agreement. 

5.10    Additional Investors. Notwithstanding anything to the contrary contained herein, if
the Company shall issue additional shares of its Preferred Stock pursuant to the Purchase Agreement, any purchaser of such shares of Preferred Stock shall become a party to this Agreement by executing and delivering an additional counterpart
signature page to this Agreement and shall be deemed an “Investor,” a “Holder” and a party hereunder. Notwithstanding anything to the contrary contained herein, if the Company shall issue Equity
Securities in accordance with Section 4.6(e), (f) or (g) of this Agreement, any purchaser of such Equity Securities may become a party to this Agreement by executing and delivering an additional counterpart signature page to this Agreement
and shall be deemed an “Investor,” a “Holder” and a party hereunder. 

5.11    Counterparts. This Agreement may be executed in any number of counterparts, each of
which shall be an original, but all of which together shall constitute one instrument. Signatures delivered via electronic transmission shall be as binding as original signatures. 

5.12    Aggregation of Stock. All shares of Registrable Securities held or acquired by
affiliated entities or persons or persons or entities under common management or control shall be aggregated together for the purpose of determining the availability of any rights under this Agreement. 

5.13    Pronouns. All pronouns contained herein, and any variations thereof, shall be deemed
to refer to the masculine, feminine or neutral, singular or plural, as to the identity of the parties hereto may require. 

5.14    Termination. Except as provided in Section 2.14 hereof, this Agreement shall
terminate and be of no further force or effect upon the earlier of: (i) an Acquisition or Asset Transfer; or (ii) the date of the Qualified IPO. 

5.15    Integration. The Prior Agreement is hereby amended, restated, superseded, and
replaced in its entirety by this Agreement. 
 [Remainder of page intentionally left blank.] 

  
 27. 

 IN WITNESS
WHEREOF, the parties hereto have executed this FOURTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as
of the date set forth in the first paragraph hereof. 
  

			
	 COMPANY:

	
	 TP THERAPEUTICS, INC.

		
	 Signature:
	 	 /s/ Athena Countouriotis

	 Print Name: Athena Maria Countouriotis, M.D.

	 Title: Chief Executive Officer

	 Address:
	 	 10628 Science Center Dr #225

		 	 San Diego, CA 92121

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 FORESITE CAPITAL FUND IV, L.P.

		
	 By:
	 	Foresite Capital Management IV, LLC, its General Partner
		
	 By:
	 	 /s/ Dennis D. Ryan

	 Name: Dennis D. Ryan

	 Title: Chief Financial Officer

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 VENBIO GLOBAL STRATEGIC FUND II,
L.P.

	
	 By: venBio Global Strategic GP II, L.P., its general partner

	 By: venBio Global Strategic GP II, Ltd., its general partner

		
	 By:
	 	 /s/ Robert Adelman

	 Name: Robert Adelman

	 Title: Director

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 HBM HEALTHCARE INVESTMENTS (CAYMAN) LTD.

		
	 By:
	 	 /s/ Jean-Marc LeSieur

	 Name: Jean-Marc LeSieur

	 Title: Managing Director

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 NEXTECH V GP S.À.R.L. ON BEHALF OF

	 NEXTECH V ONCOLOGY S.C.S.
SICAV-SIF

		
	 By:
	 	 /s/ James Vella-Bamber    /s/ Thomas Lips

	 Name: James Vella-Bamber / Thomas Lips

	 Title: Manager / Manager

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 INNO STRATEGY
LIMITED

		
	 By:
	 	 /s/ Chou, Teh-Chien

	 Name: Chou, Teh-Chien

	 Title: Director

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 LAV PRIME LIMITED

		
	 By:
	 	 /s/ Yu Luo

	 Name: Yu Luo

	 Title: Authorized Signatory

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 S.R. One, Limited

		
	 By:
	 	 /s/ Simeon J. George

	 Name: Simeon J. George

	 Title: Vice President, Partner

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 OrbiMed Private Investments VI, LP

		
	 By:
	 	 OrbiMed Capital GP VI LLC, its General Partner

  

			
	 By:
	 	 OrbiMed Advisors LLC, its Managing Member

  

			
	 By:
	 	 /s/ Carl Gordon

	         Name: Carl Gordon

	         Title: Member

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Cormorant Global Healthcare Master Fund, LP

		
	 By:
	 	 Cormorant Global Healthcare GP, LLC

		
	 By:
	 	 /s/ Bihua Chen

	 Name: Bihua Chen

	 Title: Managing Member of the GP

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Cormorant Private Healthcare Fund I, LP

		
	 By:
	 	 Cormorant Private Healthcare GP, LLC

		
	 By:
	 	 /s/ Bihua Chen

	 Name: Bihua Chen

	 Title: Managing Member of the GP

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Cormorant Private Healthcare Fund II, LP

		
	 By:
	 	 Cormorant Private Healthcare GP II, LLC

		
	 By:
	 	 /s/ Bihua Chen

	 Name: Bihua Chen

	 Title: Managing Member of the GP

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 CRMA SPV, LP

		
	 By:
	 	 Cormorant Asset Management, LLC

	 Its:
	 	 Attorney-In-Fact

		
	 By:
	 	 /s/ Bihua Chen

	 Name: Bihua Chen

	 Title: CEO/Managing Member

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 SV Tech Fund I LP

		
	 By:
	 	 /s/ Peng Cheng

	 Name: Peng Cheng

	 Title: Managing Partner

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 SV Tech Fund II LP

		
	 By:
	 	 /s/ Peng Cheng

	 Name: Peng Cheng

	 Title: Managing Partner

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

	
	 INVESTOR:

	
	 SAI-HONG
IGNATIUS OU

	
	 /s/ Sai-Hong I. Ou

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Kenson Ventures, LLC

		
	 By:
	 	 /s/ Kenneth Fong

			
	 Name:   Kenneth Fong

	 Title:     Owner

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 SSAVE Investments FM, LLC

		
	 By:
	 	 /s/ Stephen Lee

	 Name:   Stephen Lee

	 Title:     Owner, Manager

  

SIGNATURE PAGE TO TP THERAPEUTICS FOURTH A&R
INVESTOR RIGHTS AGREEMENT 

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Hong-Seh Lim

		
	 By:
	 	 /s/ Hong-Seh Lim

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 CAPITAL TEN II INC.

		
	 By:
	 	 /s/ Cheng, Chyun-Jye

	 Name:     Cheng, Chyun-Jye

	 Title:     Director

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Chaico Investment Corporation

		
	 By:
	 	 /s/ Wong, King Wai Alfred

	 Name:     Wong, King Wai Alfred

	 Title:     Director

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Hercules Bioventure, L.P.

		
	 By:
	 	 /s/ Jyan Ming Yang

	 Name:    Jyan Ming Yang

	 Title:    General Partner

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Mega Explorers Corp.

		
	 By:
	 	 /s/ Authorized signatory

	 Name:     Authorized signatory

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Ma, Nan-Jung

		
	 By:
	 	 /s/ Ma, Nan-Jung

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Hong-Tai Electric Industrial Co., Ltd.

		
	 By:
	 	 /s/ Chen, Shyh-Yi

	 Name:   Chen, Shyh-Yi

	 Title:     Chairman

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Diamond Rain Group Limited

		
	 By:
	 	 /s/ Cheng, Hsiu Tze Janny

	 Name:   Cheng, Hsiu Tze Janny

	 Title:     Director

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Harbinger VII Venture Capital Corp.

		
	 By:
	 	 /s/ Chou, Teh-Chien

	 Name:   Chou, Teh-Chien

	 Title:     President

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Tsai Sheng Chih

		
	 By:
	 	 /s/ Tsai Sheng Chih

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Lawrence Li Chen

		
	 By:
	 	 /s/ Lawrence Li Chen

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Huang Yun Chieh

		
	 By:
	 	 /s/ Huang Yun Chieh

 The foregoing FOURTH AMENDED
AND RESTATED INVESTOR RIGHTS AGREEMENT is hereby executed is hereby executed as of the date set forth in the first paragraph hereof. 

 

			
	 INVESTOR:

	
	 Chi-Chen Lee

		
	 By:
	 	 /s/ Chi-Chen Lee

 EXHIBIT A 

LIST OF INVESTORS 
  

																	
	 Name of Investor
	  	Shares of
Series A
Preferred
Stock	 	  	Shares of
Series B
Preferred
Stock	 	  	Shares of
Series C
Preferred
Stock	 	  	Shares of
Series D
Preferred
Stock	 
	 Kenson Ventures, LLC
	  	 	1,063,830	 	  				  				  	 	82,150	 
	 Fame Mount Limited, a BVI Company
	  	 	531,914	 	  				  				  			
	 KG-Bryant LLC
	  	 	425,532	 	  				  				  			
	 Meijuan Zhou
	  	 	319,149	 	  				  				  			
	 Li Shen
	  	 	212,766	 	  				  				  			
	 Forrest Duan
	  	 	212,766	 	  				  				  			
	 SSAVE Investments FM, LLC
	  	 	170,213	 	  				  				  			
	 Xiaodong Yang
	  	 	106,383	 	  				  				  			
	 Bio Intech Ltd.
	  	 	759,187	 	  				  				  			
	 Crown Investment Worldwide Ltd.
	  	 	425,531	 	  	 	50,000	 	  				  			
	 Hong-Seh Lim
	  	 	212,766	 	  	 	70,922	 	  				  			
	 Chang Chien Chun
	  	 	212,766	 	  	 	40,000	 	  				  			
	 Lucky Sky International Co., Ltd.
	  	 	212,766	 	  	 	399,983	 	  				  			
	 Maw-Sheng Lee
	  	 	212,766	 	  	 	40,000	 	  				  			
	 Holly Spirit Co., Ltd.
	  	 	312,766	 	  				  				  			
	 Jack Investment Co., Ltd.
	  	 	1,363,636	 	  				  				  			
	 Cosfund Investment Company
	  	 	272,727	 	  				  				  			
	 SV Tech Fund I LP
	  				  	 	342,466	 	  	 	215,741	 	  			
	 CRCM Opportunity Fund II, L.P.
	  				  	 	342,466	 	  				  			
	 Mega Explorers Corp.
	  				  	 	1,849,315	 	  				  			
	 Ma, Nan-Jung
	  				  	 	205,480	 	  				  			
	 Cintec Partners, LP
	  				  	 	102,740	 	  				  			
	 Hong Tai Electric Industrial Co., LTD.
	  				  	 	684,932	 	  				  	 	164,301	 
	
中租生技創業投資股份有限公司

(Chailease Biofund Company Limited)
	  				  	 	500,000	 	  				  			

																	
	 Name of Investor
	  	Shares of
Series A
Preferred
Stock	 	  	Shares of
Series B
Preferred
Stock	 	  	Shares of
Series C
Preferred
Stock	 	  	Shares of
Series D
Preferred
Stock	 
	 Diamond Rain Group Limited
	  				  	 	1,212,329	 	  				  			
	 Harbinger VII Venture Capital Corp.
	  				  	 	684,932	 	  				  			
	 Tsai Sheng Chih
	  				  	 	20,548	 	  				  			
	 Lawrence Li Chen
	  				  	 	342,466	 	  				  			
	 Huang Yun Chieh
	  				  	 	13,699	 	  				  			
	 Hercules Bioventure, L.P.
	  	 	181,818	 	  	 	890,411	 	  				  	 	164,301	 
	 Cui, Jingwei
	  				  	 	205,617	 	  				  			
	 Sai-Hong Ignatius Ou
	  				  	 	342,466	 	  	 	107,871	 	  			
	 Samuel J. Klempner
	  				  	 	70,000	 	  				  			
	 Haiyan “George” Dai
	  				  	 	136,987	 	  	 	64,723	 	  			
	 Kevin M. Kong
	  				  	 	205,480	 	  	 	86,297	 	  			
	 Chi-Chen Lee
	  				  	 	68,494	 	  				  			
	 CAPITAL TEN II INC.
	  	 	194,966	 	  	 	547,946	 	  				  	 	328,602	 
	 LAV Prime Limited
	  				  				  	 	4,314,809	 	  	 	2,105,259	 
	 Cormorant Global Healthcare Master Fund, LP
	  				  	 	2,945,206	 	  	 	776,234	 	  	 	530,479	 
	 Cormorant Private Healthcare Fund I, LP
	  				  				  	 	3,381,516	 	  			
	 Cormorant Private Healthcare Fund II, LP
	  				  				  				  	 	2,514,608	 
	 CRMA SPV, LP
	  				  				  	 	157,059	 	  	 	86,430	 
	 OrbiMed Private Investments VI, LP 
	  				  				  	 	4,314,809	 	  	 	2,105,259	 
	 S.R. One, Limited
	  				  				  	 	4,314,809	 	  	 	2,105,259	 
	 Far Wise Limited
	  				  				  	 	1,208,147	 	  			
	 SV Tech Fund II LP
	  				  				  	 	431,481	 	  	 	246,451	 
	 Daniel John Hoover
	  				  				  	 	43,149	 	  			
	 Foresite Capital Fund IV, L.P.
	  				  				  				  	 	4,929,023	 
	 venBio Global Strategic Fund II, L.P.
	  				  				  				  	 	4,929,023	 
	 NexTech V GP S.À.R.L.
	  				  				  				  	 	2,464,512	 
	 HBM HEALTHCARE INVESTMENTS (CAYMAN) LTD.
	  				  				  				  	 	3,286,015	 

																	
	 Name of Investor
	  	Shares of
Series A
Preferred
Stock	 	  	Shares of
Series B
Preferred
Stock	 	  	Shares of
Series C
Preferred
Stock	 	  	Shares of
Series D
Preferred
Stock	 
	 Inno Strategy Limited
	  				  				  				  	 	246,451	 
	 TOTAL
	  	 	7,404,248	 	  	 	12,314,885	 	  	 	19,416,645	 	  	 	26,288,123EX-10.2

 Exhibit 10.2 

TURNING POINT THERAPEUTICS, INC. 

A DELAWARE CORPORATION 

2013 EQUITY INCENTIVE PLAN 

ADOPTED BY THE BOARD: OCTOBER 24, 2013 

APPROVED BY STOCKHOLDERS: OCTOBER 24, 2013 

AMENDED BY THE BOARD: MAY 10, 2017 

APPROVED BY STOCKHOLDERS: MAY 10, 2017 

AMENDED BY THE BOARD: NOVEMBER 14, 2017 

APPROVED BY STOCKHOLDERS: NOVEMBER 14, 2017 

AMENDED BY THE BOARD: OCTOBER 16, 2018 

APPROVED BY STOCKHOLDERS: OCTOBER 16, 2018 
  

	1.	 PURPOSES. 

(a)    Eligible Stock Award Recipients. The persons eligible to receive Stock
Awards are the Employees, Directors and Consultants of the Company and its Affiliates. 

(b)    Available Stock Awards. The purpose of the Plan is to provide a means
by which eligible recipients of Stock Awards may be given an opportunity to benefit from increases in value of the Common Stock through the granting of the following Stock Awards: (i) Incentive Stock Options, (ii) Nonstatutory Stock
Options, (iii) stock bonuses and (iv) rights to acquire restricted stock. 

(c)    General Purpose. The Company, by means of the Plan, seeks to retain
the services of the group of persons eligible to receive Stock Awards, to secure and retain the services of new members of this group and to provide incentives for such persons to exert maximum efforts for the success of the Company and its
Affiliates. 
  

	2.	 DEFINITIONS. 

(a)    “Affiliate” means any parent corporation or
subsidiary corporation of the Company, whether now or hereafter existing, as those terms are defined in Sections 424(e) and (t), respectively, of the Code. 

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

 (c)    “Capitalization Adjustment” has the meaning
ascribed to that term in Section 

  
 1. 

 
l(a). 

(d)    “Change in Control” means the occurrence, in a single
transaction or in a series of related transactions, of any one or more of the following events: 

(i)    any Exchange Act Person becomes the Owner, directly or indirectly, of
securities of the Company representing more than fifty percent (50%) of the combined voting power of the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction; 

(ii)    there is consummated a merger, consolidation or similar transaction
involving (directly or indirectly) the Company and, immediately after the consummation of such merger, consolidation or similar transaction, the stockholders of the Company immediately prior thereto do not Own, directly or indirectly, outstanding
voting securities representing more than fifty percent (50%) of the combined outstanding voting power of the surviving Entity in such merger, consolidation or similar transaction or more than fifty percent (50%) of the combined outstanding voting
power of the parent of the surviving Entity in such merger, consolidation or similar transaction; 

(iii)    the stockholders of the Company approve or the Board approves a plan of
complete dissolution or liquidation of the Company, or a complete dissolution or liquidation of the Company shall otherwise occur; or 

(iv)    there is consummated a sale, lease, license or other disposition of all or
substantially all of the consolidated assets of the Company and its Subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries to an Entity, more
than fifty percent (50%) of the combined voting power of the voting securities of which are Owned by stockholders of the Company in substantially the same proportions as their Ownership of the Company immediately prior to such sale, lease, license
or other disposition. 
 Notwithstanding the foregoing or any other provision of this Plan, the definition of
Change in Control (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Stock Awards subject to such agreement (it being
understood, however, that if no definition of Change in Control or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply). 

(e)    “Code” means the Internal Revenue Code of 1986, as
amended. 
 (f)    “Committee” means a committee of one or
more members of the Board appointed by the Board in accordance with Section 3(c). 

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

  
 2. 

 (h)    “Company”
means Turning Point Therapeutics, Inc., a Delaware corporation. 

(i)    “Consultant” means any person, including an advisor,
(i) engaged by the Company or an Affiliate to render consulting or advisory services and who is compensated for such services or (ii) serving as a member of the Board of Directors of an Affiliate and who is compensated for such services.
However, the term “Consultant” shall not include Directors who are not compensated by the Company for their services as Directors, and the payment of a director’s fee by the Company for services as a Director shall not cause a
Director to be considered a “Consultant” for purposes of the Plan. 

(j)    “Continuous Service” means that the
Participant’s service with the Company or an Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an
Employee, Consultant or Director or a change in the entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, shall not terminate
a Participant’s Continuous Service. For example, a change in status from an Employee of the Company to a Consultant of an Affiliate or a Director shall not constitute an interruption of Continuous Service. The Board or the chief executive
officer of the Company, in that party’s sole discretion, may determine whether Continuous Service shall be considered interrupted in the case of any leave of absence approved by that party, including sick leave, military leave or any other
personal leave. Notwithstanding the foregoing, a leave of absence shall be treated as Continuous Service for purposes of vesting in a Stock Award only to such extent as may be provided in the Company’s leave of absence policy or in the written
terms of the Participant’s leave of absence. 
 (k)    “Corporate
Transaction” means the occurrence, in a single transaction or in a series of related transactions, of any one or more of the following events: 

(i)    a sale or other disposition of all or substantially all, as determined by the
Board in its discretion, of the consolidated assets of the Company and its Subsidiaries; 

(ii)    a sale or other disposition of at least ninety percent (90%) of the
outstanding securities of the Company; 
 (iii)    a merger, consolidation or
similar transaction following which the Company is not the surviving corporation; or 

(iv)    a merger, consolidation or similar transaction following which the Company
is the surviving corporation but the shares of Common Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other
property, whether in the form of securities, cash or otherwise. 

(l)    “Director” means a member of the Board of Directors
of the Company. 
 (m)    “Disability” means the permanent
and total disability of a person within the meaning of Section 22(e)(3) of the Code. 

  
 3. 

 (n)    “Employee”
means any person employed by the Company or an Affiliate. Service as a Director or payment of a director’s fee by the Company or an Affiliate shall not be sufficient to constitute “employment” by the Company or an Affiliate.

 (o)    “Entity” means a corporation, partnership or
other entity. 
 (p)    “Exchange Act” means the
Securities Exchange Act of 1934, as amended. 
 (q)    “Exchange Act
Person” means any natural person, Entity or “group” (within the meaning of Section 13(d) or I4(d) of the Exchange Act), except that “Exchange Act Person” shall not include (A) the Company or any Subsidiary
of the Company, (B) any employee benefit plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (C) an
underwriter temporarily holding securities pursuant to an offering of such securities, or (D) an Entity Owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their Ownership of stock of the
Company. 
 (r)    “Fair Market Value” means, as of any
date, the value of the Common Stock determined in good faith by the Board. 

(s)    “Incentive Stock Option” means an Option intended to
qualify as an incentive stock option within the meaning of Section 422 of the Code and the regulations promulgated thereunder. 

(t)    “Listing Date” means the first date upon which any
security of the Company is listed (or approved for listing) upon notice of issuance on any securities exchange or designated (or approved for designation) upon notice of issuance as a national market security on an interdealer quotation system. 

(u)    “Nonstatutory Stock Option” means an Option not
intended to qualify as an Incentive Stock Option. 

(v)    “Officer” means any person designated by the Company
as an officer. 
 (w)    “Option” means an Incentive Stock
Option or a Nonstatutory Stock Option granted pursuant to the Plan. 

(x)    “Option Agreement” means a written agreement between
the Company and an Optionholder evidencing the terms and conditions of an individual Option grant. Each Option Agreement shall be subject to the terms and conditions of the Plan. 

(y)    “Optionholder” means a person to whom an Option is
granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Option. 

(z)    “Own,” “Owned,” “Owner,”
“Ownership” A person or Entity shall be 

  
 4. 

 
deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or indirectly,
through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities. 

(aa)    “Participant” means a person to whom a Stock Award
is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Stock Award.  

(bb)    “Plan” means this Turning Point Therapeutics, Inc.
2013 Equity Incentive Plan. 
 (cc)    “Securities Act”
means the Securities Act of 1933, as amended. 
 (dd)    “Stock
Award” means any right granted under the Plan, including an Option, a stock bonus and a right to acquire restricted stock. 

(ee)    “Stock Award Agreement” means a written agreement
between the Company and a holder of a Stock Award evidencing the terms and conditions of an individual Stock Award grant. Each Stock Award Agreement shall be subject to the terms and conditions of the Plan. 

(ff)    “Subsidiary” means, with respect to the Company,
(i) any corporation of which more than fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other
class or classes of such corporation shall have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership in which the Company has a direct
or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than fifty percent (50%). 

(gg)    “Ten Percent Stockholder” means a person who Owns
(or is deemed to Own pursuant to Section 424(d) of the Code) stock possessing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any of its Affiliates. 

 

	3.	 ADMINISTRATION. 

(a)    Administration by Board. The Board shall administer the Plan unless
and until the Board delegates administration to a Committee, as provided in Section 3(c). 

(b)    Powers of Board. The Board shall have the power, subject to, and
within the limitations of, the express provisions of the Plan: 
 (i)    To
determine from time to time which of the persons eligible under the Plan shall be granted Stock Awards; when and how each Stock Award shall be granted; what type or combination of types of Stock Award shall be granted; the

  
 5. 

 
provisions of each Stock Award granted (which need not be identical), including the time or times when a person shall be permitted to receive Common Stock pursuant to a Stock Award; and the
number of shares of Common Stock with respect to which a Stock Award shall be granted to each such person. 

(ii)    To construe and interpret the Plan and Stock Awards granted under it, and to
establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or in any Stock Award Agreement, in a manner and to the extent it shall
deem necessary or expedient to make the Plan fully effective. 
 (iii) To amend the Plan or a Stock
Award as provided in Section 12. 
 (iv) To terminate or suspend the Plan as provided in
Section 13. 
 (v)    Generally, to exercise such powers and to perform such
acts as the Board deems necessary or expedient to promote the best interests of the Company and that are not in conflict with the provisions of the Plan. 

(c)    Delegation to Committee. The Board may delegate administration of the
Plan to a Committee or Committees of one (1) or more members of the Board, and the term “Committee” shall apply to any person or persons to whom such authority has been delegated. If administration is delegated to a Committee, the
Committee shall have, in connection with the administration of the Plan, the powers theretofore possessed by the Board, including the power to delegate to a subcommittee any of the administrative powers the Committee is authorized to exercise (and
references in this Plan to the Board shall thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. The Board may
abolish the Committee at any time and revest in the Board the administration of the Plan. 

(d)    Effect of Board’s Decision. All determinations, interpretations
and constructions made by the Board in good faith shall not be subject to review by any person and shall be final, binding and conclusive on all persons. 
  

	4.	 SHARES SUBJECT TO THE PLAN. 

(a)    Share Reserve. Subject to the provisions of Section 1(a) relating
to Capitalization Adjustments, the Common Stock that may be issued pursuant to Stock Awards shall not exceed in the aggregate Twenty-one Million One Hundred Seventy-eight Thousand Thirty-four
(21,178,034) shares of Common Stock. 
 (b)    Reversion of Shares to the
Share Reserve. If any Stock Award shall for any reason expire or otherwise terminate, in whole or in part, without having been exercised in full, or if any shares of Common Stock issued to a Participant pursuant to a Stock Award are forfeited
back to or repurchased by the Company because of or in connection with the failure to meet a contingency or condition required to vest such shares in 

  
 6. 

 
the Participant, the shares of Common Stock that have not been acquired, as well as the shares of Common Stock that have been forfeited or repurchased under such Stock Award shall revert to and
again become available for issuance under the Plan; provided, however, that subject to the provisions of Section 1(a) relating to Capitalization Adjustments, the aggregate maximum number of shares of Common Stock that may be issued as
Incentive Stock Options shall be Forty-two Million Three Hundred Fifty-six Thousand Sixty-eight (42,356,068) shares of Common Stock. 

(c)    Source of Shares. The shares of Common Stock subject to the Plan may
be unissued shares or reacquired shares, bought on the market or otherwise. 
  

	5.	 ELIGIBILITY. 

(a)    Eligibility for Specific Stock Awards. Incentive Stock Options may be
granted only to Employees. Stock Awards other than Incentive Stock Options may be granted to Employees, Directors and Consultants. 

(b)    Ten Percent Stockholders. A Ten Percent Stockholder shall not be
granted an Incentive Stock Option unless the exercise price of such Option is at least one hundred ten percent (110%) of the Fair Market Value of the Common Stock on the date of grant. 

(c)    Consultants. A Consultant shall not be eligible for the grant of a
Stock Award if, at the time of grant, either the offer or the sale of the Company’s securities to such Consultant is not exempt under Rule 701 of the Securities Act (“Rule 701”) because of the nature of the services that
the Consultant is providing to the Company, because the Consultant is not a natural person, or because of some other provision of Rule 701, unless the Company determines that such grant need not comply with the requirements of Rule 701 and will
satisfy another exemption under the Securities Act as well as comply with the securities laws of all other relevant jurisdictions. 
  

	6.	 OPTION PROVISIONS. 

Each Option shall be in such form and shall contain such terms and conditions as the Board shall deem
appropriate. All Options shall be separately designated Incentive Stock Options or Nonstatutory Stock Options at the time of grant, and, if certificates are issued, a separate certificate or certificates shall be issued for shares of Common Stock
purchased on exercise of each type of Option. The provisions of separate Options need not be identical, but each Option shall include (through incorporation of provisions hereof by reference in the Option or otherwise) the substance of each of the
following provisions: 
 (a)    Term. Subject to the provisions of
Section 5(b) regarding Ten Percent Stockholders, no Incentive Stock Option granted shall be exercisable after the expiration of ten (10) years from the date on which it was granted. 

(b)    Exercise Price of an Incentive Stock Option. Subject to the

  
 7. 

 
provisions of Section 5(b) regarding Ten Percent Stockholders, the exercise price of each Incentive Stock Option shall be not less than one hundred percent (100%) of the Fair Market Value of
the Common Stock subject to the Option on the date the Option is granted. Notwithstanding the foregoing, an Incentive Stock Option may be granted with an exercise price lower than that set forth in the preceding sentence if such Option is granted
pursuant to an assumption or substitution for another option in a manner satisfying the provisions of Section 424(a) of the Code. 

(c)    Exercise Price of a Nonstatutory Stock Option. The exercise price of
each Nonstatutory Stock Option shall be not less than eighty-five percent (85%) of the Fair Market Value of the Common Stock subject to the Option on the date the Option is granted. Notwithstanding the foregoing, a Nonstatutory Stock Option may be
granted with an exercise price lower than that set forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution for another option in a manner satisfying the provisions of Section 424(a) of the Code. 

(d)    Consideration. The purchase price of Common Stock acquired pursuant to
an Option shall be paid, to the extent permitted by applicable statutes and regulations, either (i) in cash at the time the Option is exercised or (ii) at the discretion of the Board at the time of the grant of the Option (or subsequently
in the case of a Nonstatutory Stock Option) (1) by delivery to the Company of other Common Stock, (2) according to a deferred payment or other similar arrangement with the Optionholder or (3) in any other form of legal consideration
that may be acceptable to the Board. Unless otherwise specifically provided in the Option, the purchase price of Common Stock acquired pursuant to an Option that is paid by delivery to the Company of other Common Stock acquired, directly or
indirectly from the Company, shall be paid only by shares of the Common Stock of the Company that have been held for more than six (6) months (or such longer or shorter period of time required to avoid a charge to earnings for financial
accounting purposes). At any time that the Company is incorporated in Delaware, payment of the Common Stock’s “par value,” as defined in the Delaware General Corporation Law, shall not be made by deferred payment. 

In the case of any deferred payment arrangement, interest shall be compounded at least annually and shall be
charged at the minimum rate of interest necessary to avoid (1) the treatment as interest, under any applicable provisions of the Code, of any amounts other than amounts stated to be interest under the deferred payment arrangement and
(2) the treatment of the Option as a variable award for financial accounting purposes. 

(e)    Transferability of an Incentive Stock Option. An Incentive Stock
Option shall not be transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder only by the Optionholder. Notwithstanding the foregoing, the Optionholder may, by delivering
written notice to the Company, in a form satisfactory to the Company, designate a third party who, in the event of the death of the Optionholder, shall thereafter be entitled to exercise the Option. 

  
 8. 

 (f)    Transferability of a
Nonstatutory Stock Option. A Nonstatutory Stock Option shall be transferable to the extent provided in the Option Agreement. If the Nonstatutory Stock Option does not provide for transferability, then the Nonstatutory Stock Option shall not be
transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder only by the Optionholder. Notwithstanding the foregoing, the Optionholder may, by delivering written notice to
the Company, in a form satisfactory to the Company, designate a third party who, in the event of the death of the Optionholder, shall thereafter be entitled to exercise the Option. 

(g)    Vesting Generally. The total number of shares of Common Stock subject
to an Option may, but need not, vest and therefore become exercisable in periodic installments that may, but need not, be equal. The Option may be subject to such other terms and conditions on the time or times when it may be exercised (which may be
based on performance or other criteria) as the Board may deem appropriate. The vesting provisions of individual Options may vary. The provisions of this Section 6(g) are subject to any Option provisions governing the minimum number of shares of
Common Stock as to which an Option may be exercised. 
 (h)    Termination of
Continuous Service. In the event that an Optionholder’s Continuous Service terminates (other than upon the Optionholder’s death or Disability), the Optionholder may exercise his or her Option (to the extent that the Optionholder was
entitled to exercise such Option as of the date of termination) but only within such period of time ending on the earlier of (i) the date three (3) months following the termination of the Optionholder’s Continuous Service (or such
longer or shorter period specified in the Option Agreement), or (ii) the expiration of the term of the Option as set forth in the Option Agreement. If after termination, the Optionholder does not exercise his or her Option within the time
specified in the Option Agreement, the Option shall terminate. Notwithstanding above, any options with supplemental bonus that are paid to employees, consultants and board members in lieu of cash as compensation shall be excluded from this clause.

 (i)    Extension of Termination Date. An Optionholder’s Option
Agreement may also provide that if the exercise of the Option following the termination of the Optionholder’s Continuous Service (other than upon the Optionholder’s death or Disability) would be prohibited at any time solely because the
issuance of shares of Common Stock would violate the registration requirements under the Securities Act, then the Option shall terminate on the earlier of (i) the expiration of the term of the Option set forth in Section 6(a) or
(ii) the expiration of a period of three (3) months after the termination of the Optionholder’s Continuous Service during which the exercise of the Option would not be in violation of such registration requirements. 

(j)    Disability of Optionholder. In the event that an Optionholder’s
Continuous Service terminates as a result of the Optionholder’s Disability, the Optionholder 

  
 9. 

 
may exercise his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of termination), but only within such period of time ending on the earlier
of (i) the date twelve (12) months following such termination (or such longer or shorter period specified in the Option Agreement) or (ii) the expiration of the term of the Option as set forth in the Option Agreement. If, after
termination, the Optionholder does not exercise his or her Option within the time specified herein, the Option shall terminate. 

(k)    Death of Optionholder. In the event that (i) an
Optionholder’s Continuous Service terminates as a result of the Optionholder’s death or (ii) the Optionholder dies within the period (if any) specified in the Option Agreement after the termination of the Optionholder’s
Continuous Service for a reason other than death, then the Option may be exercised (to the extent the Optionholder was entitled to exercise such Option as of the date of death) by the Optionholder’s estate, by a person who acquired the right to
exercise the Option by bequest or inheritance or by a person designated to exercise the option upon the Optionholder’s death pursuant to Section 6(e) or 6(f), but only within the period ending on the earlier of (1) the date eighteen
(18) months following the date of death (or such longer or shorter period specified in the Option Agreement) or (2) the expiration of the term of such Option as set forth in the Option Agreement. If, after death, the Option is not
exercised within the time specified herein, the Option shall terminate. 
 (I) Early Exercise. The
Option may, but need not, include a provision whereby the Optionholder may elect at any time before the Optionholder’s Continuous Service terminates to exercise the Option as to any part or all of the shares of Common Stock subject to the
Option prior to the full vesting of the Option. Any unvested shares of Common Stock so purchased may be subject to a repurchase option in favor of the Company or to any other restriction the Board determines to be appropriate. The Company will not
exercise its repurchase option until at least six (6) months (or such longer or shorter period of time required to avoid a charge to earnings for financial accounting purposes) have elapsed following exercise of the Option unless the Board
otherwise specifically provides in the Option. 
 (m)    Right of Repurchase.
The Option may, but need not, include a provision whereby the Company may elect, prior to the Listing Date, to repurchase all or any part of the vested shares of Common Stock acquired by the Optionholder pursuant to the exercise of the Option.
The Company will not exercise its repurchase option until at least six (6) months (or such longer or shorter period of time required to avoid a charge to earnings for financial accounting purposes) have elapsed following exercise of the Option
unless the Board otherwise specifically provides in the Option. 
 (n)    Right
of First Refusal. The Option may, but need not, include a provision whereby the Company may elect, prior to the Listing Date, to exercise a right of first refusal following receipt of notice from the Optionholder of the intent to transfer all or
any part of the shares of Common Stock received upon the exercise of the Option. The 

  
 10. 

 
Company will not exercise its repurchase option until at least six (6) months (or such longer or shorter period of time required to avoid a charge to earnings for financial accounting
purposes) have elapsed following exercise of the Option unless the Board otherwise specifically provides in the Option. 
  

	7.	 PROVISIONS OF STOCK AWARDS OTHER THAN OPTIONS. 

(a)    Stock Bonus Awards. Each stock bonus agreement shall be in such form
and shall contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of stock bonus agreements may change from time to time, and the terms and conditions of separate stock bonus agreements need not be identical,
but each stock bonus agreement shall include (through incorporation of provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions: 

(i)    Consideration. A stock bonus may be awarded in consideration for past
services actually rendered to the Company or an Affiliate for its benefit. 

(ii)    Vesting. Shares of Common Stock awarded under the stock bonus
agreement may, but need not, be subject to a share repurchase option in favor of the Company in accordance with a vesting schedule to be determined by the Board. 

(iii)    Termination of Participant’s Continuous Service. In the event
that a Participant’s Continuous Service terminates, the Company may reacquire any or all of the shares of Common Stock held by the Participant that have not vested as of the date of termination under the terms of the stock bonus agreement. 

(iv)    Transferability. Rights to acquire shares of Common Stock under the
stock bonus agreement shall be transferable by the Participant only upon such terms and conditions as are set forth in the stock bonus agreement, as the Board shall determine in its discretion, so long as Common Stock awarded under the stock bonus
agreement remains subject to the terms of the stock bonus agreement. 

(b)    Restricted Stock Awards. Each restricted stock purchase agreement
shall be in such form and shall contain such terms and conditions as the Board shall deem appropriate. The terms and conditions of the restricted stock purchase agreements may change from time to time, and the terms and conditions of separate
restricted stock purchase agreements need not be identical, but each restricted stock purchase agreement shall include (through incorporation of provisions hereof by reference in the agreement or otherwise) the substance of each of the following
provisions: 
 (i)    Purchase Price. The purchase price of restricted
stock awards shall not be less than eighty-five percent (85%) of the Common Stock’s Fair Market Value on the date such award is made or at the time the purchase is consummated. 

(ii)    Consideration. The purchase price of Common Stock acquired pursuant
to the restricted stock purchase agreement shall be paid either: (i) in cash at 

  
 11. 

 
the time of purchase; 

(iii)    at the discretion of the Board, according to a deferred payment or other
similar arrangement with the Participant; or (iii) in any other form of legal consideration that may be acceptable to the Board in its discretion; provided, however, that at any time that the Company is incorporated in Delaware, then
payment of the Common Stock’s “par value,” as defined in the Delaware General Corporation Law, shall not be made by deferred payment. 

(iv)    Vesting. Shares of Common Stock acquired under the restricted stock
purchase agreement may, but need not, be subject to a share repurchase option in favor of the Company in accordance with a vesting schedule to be determined by the Board. 

(v)    Termination of Participant’s Continuous Service. In the event
that a Participant’s Continuous Service terminates, the Company may repurchase or otherwise reacquire any or all of the shares of Common Stock held by the Participant that have not vested as of the date of termination under the terms of the
restricted stock purchase agreement. 
 (vi)    Transferability. Rights to
acquire shares of Common Stock under the restricted stock purchase agreement shall be transferable by the Participant only upon such terms and conditions as are set forth in the restricted stock purchase agreement, as the Board shall determine in
its discretion, so long as Common Stock awarded under the restricted stock purchase agreement remains subject to the terms of the restricted stock purchase agreement. 
  

	8.	 COVENANTS OF THE COMPANY. 

(a)    Availability of Shares. During the terms of the Stock Awards, the
Company shall keep available at all times the number of shares of Common Stock required to satisfy such Stock Awards. 

(b)    Securities Law Compliance. The Company shall seek to obtain from each
regulatory commission or agency having jurisdiction over the Plan such authority as may be required to grant Stock Awards and to issue and sell shares of Common Stock upon exercise of the Stock Awards; provided, however, that this undertaking
shall not require the Company to register under the Securities Act the Plan, any Stock Award or any Common Stock issued or issuable pursuant to any such Stock Award. If, after reasonable efforts, the Company is unable to obtain from any such
regulatory commission or agency the authority which counsel for the Company deems necessary for the lawful issuance and sale of Common Stock under the Plan, the Company shall be relieved from any liability for failure to issue and sell Common Stock
upon exercise of such Stock Awards unless and until such authority is obtained. 
  

	9.	 USE OF PROCEEDS FROM STOCK. 

  
 12. 

 Proceeds from the sale of Common Stock pursuant to Stock
Awards shall constitute general funds of the Company. 
  

	10.	 MISCELLANEOUS. 

(a)    Acceleration of Exercisability and Vesting. The Board shall have the
power to accelerate the time at which a Stock Award may first be exercised or the time during which a Stock Award or any part thereof will vest in accordance with the Plan, notwithstanding the provisions in the Stock Award stating the time at which
it may first be exercised or the time during which it will vest. 

(b)    Stockholder Rights. No Participant shall be deemed to be the holder
of, or to have any of the rights of a holder with respect to, any shares of Common Stock subject to such Stock Award unless and until such Participant has satisfied all requirements for exercise of the Stock Award pursuant to its terms. 

(c)    No Employment or other Service Rights. Nothing in the Plan or any
instrument executed or Stock Award granted pursuant thereto shall confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the Stock Award was granted or shall affect the right of
the Company or an Affiliate to terminate (i) the employment of an Employee with or without notice and with or without cause, (ii) the service of a Consultant pursuant to the terms of such Consultant’s agreement with the Company or an
Affiliate or (iii) the service of a Director pursuant to the Bylaws of the Company or an Affiliate, and any applicable provisions of the corporate law of the state in which the Company or the Affiliate is incorporated, as the case may be. 

(d)    Incentive Stock Option $100,000 Limitation. To the extent that the
aggregate Fair Market Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and its
Affiliates) exceeds one hundred thousand dollars ($100,000), the Options or portions thereof that exceed such limit (according to the order in which they were granted) shall be treated as Nonstatutory Stock Options, notwithstanding any contrary
provision of any Stock Award Agreement. 
 (e)    Investment Assurances.
The Company may require a Participant, as a condition of exercising or acquiring Common Stock under any Stock Award, (i) to give written assurances satisfactory to the Company as to the Participant’s knowledge and experience in
financial and business matters and/or to employ a purchaser representative reasonably satisfactory to the Company who is knowledgeable and experienced in financial and business matters and that he or she is capable of evaluating, alone or together
with the purchaser representative, the merits and risks of exercising the Stock Award; and (ii) to give written assurances satisfactory to the Company stating that the Participant is acquiring Common Stock subject to the Stock Award for the
Participant’s own account and not with any present intention of selling or otherwise distributing the Common Stock. The foregoing 

  
 13. 

 
requirements, and any assurances given pursuant to such requirements, shall be inoperative if (1) the issuance of the shares of Common Stock upon the exercise or acquisition of Common Stock
under the Stock Award has been registered under a then currently effective registration statement under the Securities Act or (2) as to any particular requirement, a determination is made by counsel for the Company that such requirement need
not be met in the circumstances under the then applicable securities laws. The Company may, upon advice of counsel to the Company, place legends on stock certificates issued under the Plan as such counsel deems necessary or appropriate in order to
comply with applicable securities laws, including, but not limited to, legends restricting the transfer of the Common Stock. 

(f)    Withholding Obligations. To the extent provided by the terms of a
Stock Award Agreement, the Participant may satisfy any federal, state or local tax withholding obligation relating to the exercise or acquisition of Common Stock under a Stock Award by any of the following means (in addition to the Company’s
right to withhold from any compensation paid to the Participant by the Company) or by a combination of such means: (i) tendering a cash payment; (ii) authorizing the Company to withhold shares of Common Stock from the shares of Common
Stock otherwise issuable to the Participant as a result of the exercise or acquisition of Common Stock under the Stock Award; provided, however, that no shares of Common Stock are withheld with a value exceeding the minimum amount of tax
required to be withheld by law (or such lower amount as may be necessary to avoid variable award accounting); or (iii) delivering to the Company owned and unencumbered shares of Common Stock. 

 

	11.	 ADJUSTMENTS UPON CHANGES IN STOCK. 

(a)    Capitalization Adjustments. If any change is made in, or other event
occurs with respect to, the Common Stock subject to the Plan or subject to any Stock Award without the receipt of consideration by the Company (through merger, consolidation, reorganization, recapitalization, reincorporation, stock dividend,
dividend in property other than cash, stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure or other transaction not involving the receipt of consideration by the Company (each a
“Capitalization Adjustment”), the Plan will be appropriately adjusted in the class(es) and maximum number of securities subject to the Plan pursuant to Sections 4(a) and 4(b) and the maximum number of securities subject to
award to any person pursuant to Section 5(c), and the outstanding Stock Awards will be appropriately adjusted in the class(es) and number of securities and price per share of Common Stock subject to such outstanding Stock Awards. The Board
shall make such adjustments, and its determination shall be final, binding and conclusive. (The conversion of any convertible securities of the Company shall not be treated as a transaction “without receipt of consideration” by the
Company.) 
 (b)    Dissolution or Liquidation. In the event of a
dissolution or liquidation of the Company, then all outstanding Stock Awards shall terminate immediately prior to the completion of such dissolution or liquidation. 

(c)    Corporate Transaction. In the event of a Corporate Transaction, any
surviving corporation or acquiring corporation may assume any or all Stock Awards 

  
 14. 

 
outstanding under the Plan or may substitute similar stock awards for Stock Awards outstanding under the Plan (it being understood that similar stock awards include, but are not limited to,
awards to acquire the same consideration paid to the stockholders or the Company, as the case may be, pursuant to the Corporate Transaction). In the event that any surviving corporation or acquiring corporation does not assume any or all such
outstanding Stock Awards or substitute similar stock awards for such outstanding Stock Awards, then with respect to Stock Awards that have been neither assumed nor substituted and that are held by Participants whose Continuous Service has not
terminated prior to the effective time of the Corporate Transaction, the vesting of such Stock Awards (and, if applicable, the time at which such Stock Awards may be exercised) shall (contingent upon the effectiveness of the Corporate Transaction)
be accelerated in full to a date prior to the effective time of such Corporate Transaction as the Board shall determine (or, if the Board shall not determine such a date, to the date that is five (5) days prior to the effective time of the
Corporate Transaction), and the Stock Awards shall terminate if not exercised (if applicable) at or prior to such effective time. With respect to any other Stock Awards outstanding under the Plan that have been neither assumed nor substituted, the
vesting of such Stock Awards (and, if applicable, the time at which such Stock Award may be exercised) shall not be accelerated unless otherwise provided in a written agreement between the Company or any Affiliate and the holder of such Stock Award,
and such Stock Awards shall terminate if not exercised (if applicable) prior to the effective time of the Corporate Transaction. 

(d)    Change in Control. A Stock Award held by any Participant whose
Continuous Service has not terminated prior to the effective time of a Change in Control may be subject to additional acceleration of vesting and exercisability upon or after such event as may be provided in the Stock Award Agreement for such Stock
Award or as may be provided in any other written agreement between the Company or any Affiliate and the Participant, but in the absence of such provision, no such acceleration shall occur. 

 

	12.	 AMENDMENT OF THE PLAN AND STOCK AWARDS. 

(a)    Amendment of Plan. The Board at any time, and from time to time, may
amend the Plan. However, except as provided in Section 1(a) relating to Capitalization Adjustments, no amendment shall be effective unless approved by the stockholders of the Company to the extent stockholder approval is necessary to satisfy
the requirements of Section 422 of the Code. 
 (b)    Stockholder
Approval. The Board, in its sole discretion, may submit any other amendment to the Plan for stockholder approval. 

(c)    Contemplated Amendments. It is expressly contemplated that the Board
may amend the Plan in any respect the Board deems necessary or advisable to provide eligible Employees with the maximum benefits provided or to be provided under the provisions of the Code and the regulations promulgated thereunder relating to
Incentive Stock Options and/or to bring the Plan and/or Incentive Stock Options granted under it into compliance therewith. 

  
 15. 

 (d)    No Impairment of
Rights. Rights under any Stock Award granted before amendment of the Plan shall not be impaired by any amendment of the Plan unless (i) the Company requests the consent of the Participant and (ii) the Participant consents in writing.

 (e)    Amendment of Stock Awards. The Board at any time, and from time
to time, may amend the terms of any one or more Stock Awards; provided, however, that the rights under any Stock Award shall not be impaired by any such amendment unless (i) the Company requests the consent of the Participant and
(ii) the Participant consents in writing. 
  

	13.	 TERMINATION OR SUSPENSION OF THE PLAN. 

(a)    Plan Term. The Board may suspend or terminate the Plan at any time.
Unless sooner terminated, the Plan shall terminate on the day before the tenth (10th) anniversary of the date the Plan is adopted by the Board or approved by the stockholders of the Company, whichever is earlier. No Stock Awards may be granted under
the Plan while the Plan is suspended or after it is terminated. 
 (b)    No
Impairment of Rights. Suspension or termination of the Plan shall not impair rights and obligations under any Stock Award granted while the Plan is in effect except with the written consent of the Participant. 

 

	14.	 EFFECTIVE DATE OF PLAN. 

The Plan shall become effective as determined by the Board, but no Stock Award shall be exercised (or, in the
case of a stock bonus, shall be granted) unless and until the Plan has been approved by the stockholders of the Company, which approval shall be within twelve (12) months before or after the date the Plan is adopted by the Board. 

 

	15.	 CHOICE OF LAW. 

The law of the State of Delaware shall govern all questions concerning the construction, validity and
interpretation of this Plan, without regard to such state’s conflict of laws rules. 

  
 16. 

 TURNING POINT THERAPEUTICS, INC. 

STOCK OPTION GRANT NOTICE 

(2013 EQUITY INCENTIVE PLAN) 

TURNING POINT THERAPEUTICS, INC. (the “Company”),
pursuant to its 2013 Equity Incentive Plan (the “Plan”), hereby grants to Optionholder an option to purchase the number of shares of the Company’s Common Stock set forth below. This option is subject to all of the terms
and conditions as set forth in this notice, in the Option Agreement, the Plan and the Notice of Exercise, all of which are attached hereto and incorporated herein in their entirety. Capitalized terms not explicitly defined herein but defined in the
Plan or the Option Agreement will have the same definitions as in the Plan or the Option Agreement. If there is any conflict between the terms in this notice and the Plan, the terms of the Plan will control. 

 

							
		 	 Optionholder:
	 	  
	 	
		 	 Date of Grant:
	 	  
	 	
		 	 Vesting Commencement Date:
	 	  
	 	
		 	 Number of Shares Subject to Option:
	 	  
	 	
		 	 Exercise Price (Per Share):
	 	  
	 	
		 	 Total Exercise Price:
	 	  
	 	
		 	 Expiration Date:
	 	  
	 	

  

					
	Type of Grant:	  	 ☐   Incentive Stock Option1
	  	 ☐   Nonstatutory Stock Option

			
	Exercise Schedule:	  	 ☒   Same as Vesting Schedule
	  	 ☐   Early Exercise Permitted

		
	Vesting Schedule:	  	 [Sample of standard vesting. One-fourth (1/4th) of the shares vest one year after the Vesting Commencement Date; the balance of the shares vest in a series of 36 successive equal monthly installments measured from the first anniversary of the
Vesting Commencement Date, subject to Optionholder’s Continuous Service as of each such date.]

		
	Payment:	  	 By one or a combination of the following items (described in the Option Agreement):

		
		  	 ☒   By cash, check, bank draft or money order payable to the Company

☐   Pursuant to a Regulation T Program if the shares are publicly traded

☐   By delivery of already-owned shares if the shares are publicly traded

☐   If and only to the extent this option is a Nonstatutory Stock Option, and subject to the Company’s consent at the time
of exercise, by a “net exercise” arrangement

  
  

	1 	 If this is an Incentive Stock Option, it (plus other outstanding Incentive Stock Options) cannot be first
exercisable for more than $100,000 in value (measured by exercise price) in any calendar year. Any excess over $100,000 is a Nonstatutory Stock Option. 

 Additional Terms/Acknowledgements: Optionholder acknowledges receipt of, and
understands and agrees to, this Stock Option Grant Notice, the Option Agreement and the Plan. Optionholder acknowledges and agrees that this Stock Option Grant Notice and the Option Agreement may not be modified, amended or revised except as
provided in the Plan. Optionholder further acknowledges that as of the Date of Grant, this Stock Option Grant Notice, the Option Agreement, and the Plan set forth the entire understanding between Optionholder and the Company regarding this
option award and supersede all prior oral and written agreements, promises and/or representations on that subject with the exception of (i) any compensation recovery policy that is adopted by the Company or is otherwise required by applicable
law and (ii) any written employment or severance or similar arrangement that would provide for vesting acceleration or other special treatment of this option upon the terms and conditions set forth therein. 

By accepting this option, you consent to receive such documents by electronic delivery and to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company. 
  

			
	 TURNING POINT THERAPEUTICS, INC.
	  	 OPTIONHOLDER:

		
	
Signature:                     
                                         
                              
	  	
                       
                                         
                                    

	Signature	  	Signature
		
	 Print Name: Athena Maria Countouriotis, M.D.
	  	
Date:                      
                                         
                             

		
	 Title: Chief Executive Officer
	  	
		
	
Date:                      
                                         
                                     
	  	

 ATTACHMENTS: Option Agreement, 2013 Equity Incentive Plan and Notice of
Exercise 

 TURNING POINT THERAPEUTICS,
INC. 
 2013 EQUITY INCENTIVE PLAN 

OPTION AGREEMENT 

(INCENTIVE STOCK OPTION OR NONSTATUTORY STOCK
OPTION) 
 Pursuant to your Stock Option Grant Notice (the “Grant Notice”) and
this Option Agreement (the “Option Agreement”), Turning Point Therapeutics, Inc. (the “Company”) has granted you an option (the “Option”) under its 2013 Equity Incentive Plan
(the “Plan”) to purchase the number of shares of the Company’s Common Stock indicated in your Grant Notice at the exercise price indicated in your Grant Notice. The Option is granted to you effective as of the date of
grant set forth in the Grant Notice (the “Date of Grant”). If there is any conflict between the terms in this Option Agreement and the Plan, the terms of the Plan will control. Capitalized terms not explicitly defined in this
Option Agreement or in the Grant Notice but defined in the Plan will have the same definitions as in the Plan. 
 The
details of your Option, in addition to those set forth in the Grant Notice and the Plan, are as follows: 

1.      VESTING. Your Option will vest as provided in your Grant
Notice. Vesting will cease upon the termination of your Continuous Service. 

2.      NUMBER OF SHARES
AND EXERCISE PRICE. The number of shares of Common Stock subject to your Option and your exercise price per share in your Grant Notice will be adjusted for Capitalization Adjustments. 

3.      EXERCISE RESTRICTION FOR
NON-EXEMPT EMPLOYEES. If you are an Employee eligible for overtime compensation under the Fair Labor Standards Act of 1938, as amended (that is, a “Non-Exempt Employee”), and except as otherwise provided in the Plan, you may not exercise your option until you have completed at least six months of Continuous Service measured from the Date of Grant.

 4.      EXERCISE PRIOR TO
VESTING (“EARLY EXERCISE”). If permitted in your Grant Notice (i.e., the “Exercise Schedule” indicates “Early Exercise Permitted”) and subject to the provisions of
your Option, you may elect at any time that is both (i) during the period of your Continuous Service and (ii) during the term of your Option, to exercise all or part of your Option, including the unvested portion of your Option;
provided, however, that: 
 (a)       a partial exercise of your Option
will be deemed to cover first vested shares of Common Stock and then the earliest vesting installment of unvested shares of Common Stock; 

(b)       any shares of Common Stock so purchased from installments that have not
vested as of the date of exercise will be subject to the purchase option in favor of the Company as described in the Company’s form of Early Exercise Stock Purchase Agreement; 

  
 1. 

 (c)       you will enter into the
Company’s form of Early Exercise Stock Purchase Agreement with a vesting schedule that will result in the same vesting as if no early exercise had occurred; and 

(d)       if your Option is an Incentive Stock Option, then, to the extent that the
aggregate Fair Market Value (determined at the Date of Grant) of the shares of Common Stock with respect to which your Option plus all other Incentive Stock Options you hold are exercisable for the first time by you during any calendar year (under
all plans of the Company and its Affiliates) exceeds $100,000, your Option(s) or portion thereof that exceed such limit (according to the order in which they were granted) will be treated as Nonstatutory Stock Options. 

5.      METHOD OF PAYMENT. You must
pay the full amount of the exercise price for the shares you wish to exercise. You may pay the exercise price in cash or by check, bank draft or money order payable to the Company or in any other manner permitted by your Grant Notice, which may
include one or more of the following: 
 (a)       Provided that at the time of
exercise the Common Stock is publicly traded, pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board that, prior to the issuance of Common Stock, results in either the receipt of cash (or check) by the Company
or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the sales proceeds. This manner of payment is also known as a “broker-assisted exercise”, “same day sale”, or “sell to
cover”. 
 (b)       Provided that at the time of exercise the Common Stock
is publicly traded, by delivery to the Company (either by actual delivery or attestation) of already-owned shares of Common Stock that are owned free and clear of any liens, claims, encumbrances or security interests, and that are valued at Fair
Market Value on the date of exercise. “Delivery” for these purposes, in the sole discretion of the Company at the time you exercise your Option, will include delivery to the Company of your attestation of ownership of such shares of Common
Stock in a form approved by the Company. You may not exercise your Option by delivery to the Company of Common Stock if doing so would violate the provisions of any law, regulation or agreement restricting the redemption of the Company’s stock.

 (c)       If this Option is a Nonstatutory Stock Option, subject to the consent
of the Company at the time of exercise, by a “net exercise” arrangement pursuant to which the Company will reduce the number of shares of Common Stock issued upon exercise of your Option by the largest whole number of shares with a Fair
Market Value that does not exceed the aggregate exercise price. You must pay any remaining balance of the aggregate exercise price not satisfied by the “net exercise” in cash or other permitted form of payment. Shares of Common Stock will
no longer be outstanding under your Option and will not be exercisable thereafter if those shares (i) are used to pay the exercise price pursuant to the “net exercise,” (ii) are delivered to you as a result of such exercise, and
(iii) are withheld to satisfy your tax withholding obligations. 

6.      WHOLE SHARES. You may exercise your option
only for whole shares of Common Stock. 

  
 2. 

 7.      SECURITIES
LAW COMPLIANCE. In no event may you exercise your Option unless the shares of Common Stock issuable upon such exercise are then registered under the Securities Act or, if not registered, the Company has determined
that such exercise and the issuance of the shares would be exempt from the registration requirements of the Securities Act. The exercise of your Option also must comply with all other applicable laws and regulations governing your Option, and you
may not exercise your Option if the Company determines that such exercise would not be in material compliance with such laws and regulations (including any restrictions on exercise required for compliance with Treas. Reg. 1.401(k)-1(d)(3), if applicable). 

8.      TERM. You may not exercise your Option before the Date of
Grant or after the expiration of the Option’s term. The term of your Option expires, subject to the provisions of Section 5(h) of the Plan, upon the earliest of the following: 

(a)       immediately upon the termination of your Continuous Service for Cause;

 (b)       three months after the termination of your Continuous Service for any
reason other than Cause, your Disability or your death (except as otherwise provided in Section 8(d) below); provided, however, that if during any part of such three month period your Option is not exercisable solely
because of the condition set forth in the section above relating to “Securities Law Compliance,” your option will not expire until the earlier of the Expiration Date or until it has been exercisable for an aggregate period of three months
after the termination of your Continuous Service; provided further, that if (i) you are a Non-Exempt Employee, (ii) your Continuous Service terminates within six months after the Date of
Grant, and (iii) you have vested in a portion of your option at the time of your termination of Continuous Service, your option will not expire until the earlier of (x) the later of (A) the date that is seven months after the Date of
Grant, and (B) the date that is three months after the termination of your Continuous Service, and (y) the Expiration Date; 

(c)       12 months after the termination of your Continuous Service due to your
Disability (except as otherwise provided in Section 8(d)) below; 

(d)       18 months after your death if you die either during your Continuous
Service or within three months after your Continuous Service terminates for any reason other than Cause; 

(e)       the Expiration Date indicated in your Grant Notice; or 

(f)       the day before the 10th anniversary of the Date of Grant. 

If your Option is an Incentive Stock Option, note that to obtain the federal income tax advantages associated with an
Incentive Stock Option, the Code requires that at all times beginning on the Date of Grant and ending on the day three months before the date of your Option’s exercise, you must be an employee of the Company or an Affiliate, except in the event
of your death or your permanent and total disability, as defined in Section 22(e)(3) of the Code. The Company has provided for extended exercisability of your Option under certain circumstances for your benefit but cannot guarantee that your
Option will necessarily be treated as an Incentive Stock Option if you continue to provide services to the Company or an Affiliate as a Consultant or Director after your employment terminates or if you otherwise exercise your Option more than three
months after the date your employment with the Company or an Affiliate terminates. 

  
 3. 

 9.      EXERCISE. 

(a)       You may exercise the vested portion of your Option (and the unvested
portion of your Option if your Grant Notice so permits) during its term by (i) delivering a Notice of Exercise (in a form designated by the Company) or completing such other documents and/or procedures designated by the Company for exercise and
(ii) paying the exercise price and any applicable withholding taxes to the Company’s Secretary, stock plan administrator, or such other person as the Company may designate, together with such additional documents as the Company may then
require. 
 (b)       By accepting your Option you agree that, as a condition to
any exercise of your Option, the Company may require you to enter into an arrangement providing for the payment by you to the Company of any tax withholding obligation of the Company arising by reason of (i) the exercise of your Option,
(ii) the lapse of any substantial risk of forfeiture to which the shares of Common Stock are subject at the time of exercise, or (iii) the disposition of shares of Common Stock acquired upon such exercise. 

(c)       If your Option is an Incentive Stock Option, by exercising your Option you
agree that you will notify the Company in writing within 15 days after the date of any disposition of any of the shares of the Common Stock issued upon exercise of your Option that occurs within two years after the Date of Grant or within one year
after such shares of Common Stock are transferred upon exercise of your Option. 

(d)       By accepting your Option you agree that you will not sell, dispose of,
transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale with respect to any shares of Common Stock or other securities of the Company held by
you, for a period of 180 days following the effective date of a registration statement of the Company filed under the Securities Act or such longer period as the underwriters or the Company will request to facilitate compliance with FINRA Rule 2711
or NYSE Member Rule 472 or any successor or similar rules or regulation (the “Lock-Up Period”); provided, however, that nothing contained in this section will prevent the
exercise of a repurchase option, if any, in favor of the Company during the Lock-Up Period. You further agree to execute and deliver such other agreements as may be reasonably requested by the Company or the
underwriters that are consistent with the foregoing or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to your shares of Common Stock until
the end of such period. You also agree that any transferee of any shares of Common Stock (or other securities) of the Company held by you will be bound by this Section 9(d). The underwriters of the Company’s stock are intended third party
beneficiaries of this Section 9(d) and will have the right, power and authority to enforce the provisions hereof as though they were a party hereto. 

10.     TRANSFERABILITY. Except as otherwise provided in this
Section 10, your Option is not transferable, except by will or by the laws of descent and distribution, and is exercisable during your life only by you. 

(a)       Certain Trusts. Upon receiving written permission from the Board or
its duly authorized designee, you may transfer your Option to a trust if you are considered to be the 

  
 4. 

 
sole beneficial owner (determined under Section 671 of the Code and applicable state law) while the Option is held in the trust. You and the trustee must enter into transfer and other
agreements required by the Company. 
 (b)       Domestic Relations Orders.
Upon receiving written permission from the Board or its duly authorized designee, and provided that you and the designated transferee enter into transfer and other agreements required by the Company, you may transfer your Option pursuant to the
terms of a domestic relations order, official marital settlement agreement or other divorce or separation instrument as permitted by Treasury Regulation 1.421-1(b)(2) that contains the information required by
the Company to effectuate the transfer. You are encouraged to discuss the proposed terms of any division of this Option with the Company prior to finalizing the domestic relations order or marital settlement agreement to help ensure the required
information is contained within the domestic relations order or marital settlement agreement. If this Option is an Incentive Stock Option, this Option may be deemed to be a Nonstatutory Stock Option as a result of such transfer. 

(c)       Beneficiary Designation. Upon receiving written permission from the
Board or its duly authorized designee, you may, by delivering written notice to the Company, in a form approved by the Company and any broker designated by the Company to handle option exercises, designate a third party who, on your death, will
thereafter be entitled to exercise this Option and receive the Common Stock or other consideration resulting from such exercise. In the absence of such a designation, your executor or administrator of your estate will be entitled to exercise this
Option and receive, on behalf of your estate, the Common Stock or other consideration resulting from such exercise. 

11.     RIGHT OF FIRST
REFUSAL. Shares of Common Stock that you acquire upon exercise of your Option are subject to any right of first refusal that may be described in the Company’s bylaws in effect at such time the Company elects to exercise its
right; provided, however, that if there is no right of first refusal described in the Company’s bylaws at such time, the right of first refusal described below will apply. The Company’s right of first refusal will expire on the
first date upon which any security of the Company is listed (or approved for listing) upon notice of issuance on a national securities exchange or quotation system (the “Listing Date”). 

(a)       Prior to the Listing Date, you may not validly Transfer (as defined below)
any shares of Common Stock acquired upon exercise of your Option, or any interest in such shares, unless such Transfer is made in compliance with the following provisions: 

(i)    Before there can be a valid Transfer of any shares of Common Stock or any interest therein,
the record holder of the shares of Common Stock to be transferred (the “Offered Shares”) will give written notice (by registered or certified mail) to the Company. Such notice will specify the identity of the proposed
transferee, the cash price offered for the Offered Shares by the proposed transferee (or, if the proposed Transfer is one in which the holder will not receive cash, such as an involuntary transfer, gift, donation or pledge, the holder will state
that no purchase price is being proposed), and the other terms and conditions of the proposed Transfer. The date such notice is mailed will be hereinafter referred to as the “Notice Date” and the record holder of the Offered
Shares will be hereinafter referred to as the “Offeror.” If, from time to time, there is any stock dividend, stock split or other change in the character or amount of any of the

  
 5. 

 
outstanding Common Stock which is subject to the provisions of your Option, then in such event any and all new, substituted or additional securities to which you are entitled by reason of your
ownership of the shares of Common Stock acquired upon exercise of your Option will be immediately subject to the Company’s Right of First Refusal (as defined below) with the same force and effect as the shares subject to the Right of First
Refusal immediately before such event. 
 (ii)    For a period of 30 calendar days after the
Notice Date, or such longer period as may be required to avoid the classification of your Option as a liability for financial accounting purposes, the Company will have the option to purchase all (but not less than all) of the Offered Shares at the
purchase price and on the terms set forth in Section 11(a)(iii) (the Company’s “Right of First Refusal”). In the event that the proposed Transfer is one involving no payment of a purchase price, the purchase price
will be deemed to be the Fair Market Value of the Offered Shares as determined in good faith by the Board in its discretion. The Company may exercise its Right of First Refusal by mailing (by registered or certified mail) written notice of exercise
of its Right of First Refusal to the Offeror prior to the end of said 30 days (including any extension required to avoid classification of the Option as a liability for financial accounting purposes). 

(iii)    The price at which the Company may purchase the Offered Shares pursuant to the exercise
of its Right of First Refusal will be the cash price offered for the Offered Shares by the proposed transferee (as set forth in the notice required under Section 11(a)(i)), or the Fair Market Value as determined by the Board in the event no
purchase price is involved. To the extent consideration other than cash is offered by the proposed transferee, the Company will not be required to pay any additional amounts to the Offeror other than the cash price offered (or the Fair Market Value,
if applicable). The Company’s notice of exercise of its Right of First Refusal will be accompanied by full payment for the Offered Shares and, upon such payment by the Company, the Company will acquire full right, title and interest to all of
the Offered Shares. 
 (iv)    If, and only if, the option given pursuant to
Section 11(a)(ii) is not exercised, the Transfer proposed in the notice given pursuant to Section 11(a)(i) may take place; provided, however, that such Transfer must, in all respects, be exactly as proposed in said notice except
that such Transfer may not take place either before the 10th calendar day after the expiration of the 30 day option exercise period or after the
90th calendar day after the expiration of the 30 day option exercise period, and if such Transfer has not taken place prior to said 90th day,
such Transfer may not take place without once again complying with this Section 11(a). The option exercise periods in this Section 11(a)(iv) will be adjusted to include any extension required to avoid the classification of your option as a
liability for financial accounting purposes. 
 (b)       As used in this
Section 11, the term “Transfer” means any sale, encumbrance, pledge, gift or other form of disposition or transfer of shares of Common Stock or any legal or equitable interest therein; provided, however, that the
term Transfer does not include a transfer of such shares or interests by will or intestacy to your Immediate Family (as defined below). In such case, the transferee or other recipient will receive and hold the shares of Common Stock so transferred
subject to the provisions of this Section, and there will be no further transfer of such shares except in accordance with the terms of this Section. As used herein, the term “Immediate Family” will mean your spouse, the
lineal descendant or antecedent, father, mother, 

  
 6. 

 
brother or sister, child, adopted child, grandchild or adopted grandchild of you or your spouse, or the spouse of any child, adopted child, grandchild or adopted grandchild of you or your spouse.

 (c)    None of the shares of Common Stock purchased on exercise of your Option will be
transferred on the Company’s books nor will the Company recognize any such Transfer of any such shares or any interest therein unless and until all applicable provisions of this Section 11 have been complied with in all respects. The
certificates of stock evidencing shares of Common Stock purchased on exercise of your Option will bear an appropriate legend referring to the transfer restrictions imposed by this Section 11. 

(d)    To ensure that the shares subject to the Company’s Right of First Refusal will be
available for repurchase by the Company, the Company may require you to deposit the certificates evidencing the shares that you purchase upon exercise of your Option with an escrow agent designated by the Company under the terms and conditions of an
escrow agreement approved by the Company. If the Company does not require such deposit as a condition of exercise of your Option, the Company reserves the right at any time to require you to so deposit the certificates in escrow. As soon as
practicable after the expiration of the Company’s Right of First Refusal, the agent will deliver to you the shares and any other property no longer subject to such restriction. In the event the shares and any other property held in escrow are
subject to the Company’s exercise of its Right of First Refusal, the notices required to be given to you will be given to the escrow agent, and any payment required to be given to you will be given to the escrow agent. Within 30 days after
payment by the Company for the Offered Shares, the escrow agent will deliver the Offered Shares that the Company has repurchased to the Company and will deliver the payment received from the Company to you. 

12.    RIGHT OF REPURCHASE. To the extent
provided in the Company’s bylaws in effect at such time the Company elects to exercise its right, the Company will have the right to repurchase all or any part of the shares of Common Stock you acquire pursuant to the exercise of your Option.

 13.    OPTION NOT A SERVICE
CONTRACT. Your Option is not an employment or service contract, and nothing in your Option will be deemed to create in any way whatsoever any obligation on your part to continue in the employ of the Company or an Affiliate, or of
the Company or an Affiliate to continue your employment. In addition, nothing in your Option will obligate the Company or an Affiliate, their respective stockholders, boards of directors, officers or employees to continue any relationship that you
might have as a Director or Consultant for the Company or an Affiliate. 

14.    WITHHOLDING OBLIGATIONS. 

(a)    At the time you exercise your Option, in whole or in part, and at any time thereafter as
requested by the Company, you hereby authorize withholding from payroll and any other amounts payable to you, and otherwise agree to make adequate provision for (including by means of a “same day sale” pursuant to a program developed under
Regulation T as promulgated by the Federal Reserve Board to the extent permitted by the Company), any sums required to satisfy the federal, state, local and foreign tax withholding obligations of the Company or an Affiliate, if any, which arise in
connection with the exercise of your Option. 

  
 7. 

 (b)    If this Option is a Nonstatutory Stock
Option, then upon your request and subject to approval by the Company, and compliance with any applicable legal conditions or restrictions, the Company may withhold from fully vested shares of Common Stock otherwise issuable to you upon the exercise
of your Option a number of whole shares of Common Stock having a Fair Market Value, determined by the Company as of the date of exercise, not in excess of the minimum amount of tax required to be withheld by law (or such lower amount as may be
necessary to avoid classification of your option as a liability for financial accounting purposes). If the date of determination of any tax withholding obligation is deferred to a date later than the date of exercise of your Option, share
withholding pursuant to the preceding sentence shall not be permitted unless you make a proper and timely election under Section 83(b) of the Code, covering the aggregate number of shares of Common Stock acquired upon such exercise with respect
to which such determination is otherwise deferred, to accelerate the determination of such tax withholding obligation to the date of exercise of your Option. Notwithstanding the filing of such election, shares of Common Stock shall be withheld
solely from fully vested shares of Common Stock determined as of the date of exercise of your Option that are otherwise issuable to you upon such exercise. Any adverse consequences to you arising in connection with such share withholding procedure
shall be your sole responsibility. 
 (c)    You may not exercise your Option unless the tax
withholding obligations of the Company and/or any Affiliate are satisfied. Accordingly, you may not be able to exercise your Option when desired even though your Option is vested, and the Company will have no obligation to issue a certificate for
such shares of Common Stock or release such shares of Common Stock from any escrow provided for herein, if applicable, unless such obligations are satisfied. 

15.    TAX CONSEQUENCES. You hereby agree that
the Company does not have a duty to design or administer the Plan or its other compensation programs in a manner that minimizes your tax liabilities. You will not make any claim against the Company, or any of its Officers, Directors, Employees or
Affiliates related to tax liabilities arising from your Option or your other compensation. In particular, you acknowledge that this Option is exempt from Section 409A of the Code only if the exercise price per share specified in the Grant
Notice is at least equal to the “fair market value” per share of the Common Stock on the Date of Grant and there is no other impermissible deferral of compensation associated with the Option. Because the Common Stock is not traded on an
established securities market, the Fair Market Value is determined by the Board, perhaps in consultation with an independent valuation firm retained by the Company. You acknowledge that there is no guarantee that the Internal Revenue Service will
agree with the valuation as determined by the Board, and you will not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates in the event that the Internal Revenue Service asserts that the valuation determined
by the Board is less than the “fair market value” as subsequently determined by the Internal Revenue Service. 

16.    NOTICES. Any notices provided for in your Option or the Plan will be
given in writing (including electronically) and will be deemed effectively given upon receipt or, in the case of notices delivered by mail by the Company to you, five days after deposit in the United States mail, postage prepaid, addressed to you at
the last address you provided to the Company. The Company may, in its sole discretion, decide to deliver any documents related to participation in the Plan and this Option by electronic means or to request your consent to participate in the Plan

  
 8. 

 
by electronic means. By accepting this Option, you consent to receive such documents by electronic delivery and to participate in the Plan through an
on-line or electronic system established and maintained by the Company or another third party designated by the Company. 

17.    GOVERNING PLAN DOCUMENT. Your Option is
subject to all the provisions of the Plan, the provisions of which are hereby made a part of your Option, and is further subject to all interpretations, amendments, rules and regulations, which may from time to time be promulgated and adopted
pursuant to the Plan. If there is any conflict between the provisions of your Option and those of the Plan, the provisions of the Plan will control. 

18.    EFFECT ON OTHER EMPLOYEE
BENEFIT PLANS. The value of this Option will not be included as compensation, earnings, salaries, or other similar terms used when calculating your benefits under any employee benefit plan sponsored
by the Company or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s employee benefit plans. 

19.    VOTING RIGHTS. You will not have voting
or any other rights as a stockholder of the Company with respect to the shares to be issued pursuant to this Option until such shares are issued to you. Upon such issuance, you will obtain full voting and other rights as a stockholder of the
Company. Nothing contained in this Option, and no action taken pursuant to its provisions, will create or be construed to create a trust of any kind or a fiduciary relationship between you and the Company or any other person. 

20.    SEVERABILITY. If all or any part of this Option
Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity will not invalidate any portion of this Option Agreement or the Plan not declared to be unlawful or invalid. Any
Section of this Option Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible
while remaining lawful and valid. 
 21.    MISCELLANEOUS.

 (a)    The rights and obligations of the Company under your Option will be transferable to any
one or more persons or entities, and all covenants and agreements hereunder will inure to the benefit of, and be enforceable by the Company’s successors and assigns. 

(b)    You agree upon request to execute any further documents or instruments necessary or
desirable in the sole determination of the Company to carry out the purposes or intent of your Option. 

(c)    You acknowledge and agree that you have reviewed your Option in its entirety, have had an
opportunity to obtain the advice of counsel prior to executing and accepting your Option, and fully understand all provisions of your Option. 

(d)    This Option Agreement will be subject to all applicable laws, rules, and regulations, and to
such approvals by any governmental agencies or national securities exchanges as may be required. 

  
 9. 

 (e)    All obligations of the Company under the
Plan and this Option Agreement will be binding on any successor to the Company, whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business
and/or assets of the Company. 
 *        *        * 

This Option Agreement will be deemed to be signed by you upon the signing by 

you of the Stock Option Grant Notice to which it is attached. 

  
 10. 

 TURNING POING THERAPEUTICS, INC. 

NOTICE OF EXERCISE 

Turning Point Therapeutics, Inc. 
 10628 Science
Center Drive, #225 
 San Diego, California 92121 

Date of
Exercise:                         

This constitutes notice to TURNING POINT THERAPEUTICS, INC.
(the “Company”) under my stock option that I elect to purchase the below number of shares of Common Stock of the Company (the “Shares”) for the price set forth below. 

 

					
	 Type of option (check one):
	  	 Incentive ☐
	  	 Nonstatutory ☐

			
	Stock option dated:	  	
                       
   
	  	
                       
   

			
	Number of Shares as
to which option is
exercised:	  	
                       
   
	  	
                       
   

			
	Certificates to be issued in name of:	  	
                       
   
	  	
                       
   

			
	Total exercise price:	  	
$                       
 
	  	
$                       
 

			
	Cash, check, bank draft or money order payment delivered
herewith:	  	
$                       
 
	  	
$                       
 

 I accept the terms of the option described above, and by this exercise, I agree (i) to
provide such additional documents as you may require pursuant to the terms of the 2013 Equity Incentive Plan, (ii) to provide for the payment by me to you (in the manner designated by you) of your withholding obligation, if any, relating to the
exercise of this option, and (iii) if this exercise relates to an incentive stock option, to notify you in writing within 15 days after the date of any disposition of any of the Shares issued upon exercise of this option that occurs within two
years after the date of grant of this option or within one year after such Shares are issued upon exercise of this option. 

I hereby make the following certifications and representations with respect to the number of Shares listed above, which are
being acquired by me for my own account upon exercise of the option as set forth above: 
 I acknowledge that the Shares
have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), and are deemed to constitute “restricted securities” under Rule 701 and Rule 144 promulgated under the Securities Act. I
warrant and represent to the Company that I have no present intention of distributing or selling said Shares, except as permitted under the Securities Act and any applicable state securities laws. 

I further acknowledge and agree that, except for such information as required to be delivered to me by the Company pursuant to
the option or the Plan (if any), I will have no right to receive any information from the Company by virtue of the grant of the option or the purchase of shares of Common Stock through exercise of the option, ownership of such shares of Common
Stock, or as a result of my 

 
being a holder of record of stock of the Company. Without limiting the foregoing, to the fullest extent permitted by law, I hereby waive all inspection rights under Section 220 of the
Delaware General Corporation Law and all such similar information and/or inspection rights that may be provided under the law of any jurisdiction, or any federal, state or foreign regulation, that are, or may become, applicable to the Company or the
Company’s capital stock (the “Inspection Rights”). I hereby covenant and agree never to directly or indirectly commence, voluntarily aid in any way, prosecute, assign, transfer, or cause to be commenced any claim,
action, cause of action, or other proceeding to pursue or exercise the Inspection Rights. 
 I further acknowledge that I
will not be able to resell the Shares for at least 90 days after the stock of the Company becomes publicly traded (i.e., subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934) under Rule 701
and that more restrictive conditions apply to affiliates of the Company under Rule 144. 
 I further acknowledge that all
certificates representing any of the Shares subject to the provisions of the option shall have endorsed thereon appropriate legends reflecting the foregoing limitations, as well as any legends reflecting restrictions pursuant to the Company’s
Certificate of Incorporation or Bylaws, as each may be amended from time to time, and/or applicable securities laws. 
 I
further agree that, if required by the Company (or a representative of the underwriters) in connection with the first underwritten registration of the offering of any securities of the Company under the Securities Act, I will not sell, dispose of,
transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale with respect to any shares of Common Stock or other securities of the Company for a
period of 180 days following the effective date of a registration statement of the Company filed under the Securities Act (or such longer period as the underwriters or the Company shall request to facilitate compliance with FINRA Rule 2711 or NYSE
Member Rule 472 or any successor or similar rule or regulation) (the “Lock-Up Period”). I further agree to execute and deliver such other agreements as may be reasonably requested by
the Company or the underwriters that are consistent with the foregoing or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer
instructions with respect to securities subject to the foregoing restrictions until the end of such period. 
 Very truly
yours, 
  

			
		
		  	 
		
		  	(Signature)
		
		  	 
		
		  	Name (Please Print)
		
	Address of Record:

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