Document:

Amended and Restated 2004 Stock Plan

 Exhibit 10.1.1 
 AMBARELLA, INC. 
 2004 STOCK PLAN 

(as amended March 8, 2011) 
 1. Purposes of the Plan. The purposes of this Plan are to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentive to Employees,
Directors and Consultants and to promote the success of the Company’s business. Options granted under the Plan may be Incentive Stock Options or Nonstatutory Stock Options, as determined by the Administrator at the time of grant. Stock Purchase
Rights may also be granted under the Plan. 
 2. Definitions. As used herein, the following definitions
shall apply: 
 (a) “Administrator” means the Board or any of its Committees as shall be
administering the Plan in accordance with Section 4 hereof. 
 (b) “Applicable Laws” means
the requirements relating to the administration of equity compensation plans under U.S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Ordinary Shares are listed or quoted
and the applicable laws of any other country or jurisdiction where Options or Stock Purchase Rights are granted under the Plan. 
 (c) “Board” means the Board of Directors of the Company. 
 (d) “Change in Control” means the occurrence of any of the following events: 
 (i) Any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act) becomes the “beneficial owner” (as defined in Rule 13d-3 of the Exchange Act), directly or
indirectly, of securities of the Company representing fifty percent (50%) or more of the total voting power represented by the Company’s then outstanding voting securities, except that any change in the beneficial ownership of the
securities of the Company as a result of a private financing of the Company that is approved by the Board, shall not be deemed to be a Change in Control; or 
 (ii) The consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets, but excluding any sale, lease or other conveyance of all or substantially all of
the assets of that is not deemed a winding up pursuant to Article 163 of the Company’s Amended and Restated Memorandum and Articles of Association; or 
 (iii) If the Company has filed a registration statement declared effective pursuant to Section 12(g) of the Exchange Act with respect to any of the Company’s securities, a change in the
composition of the Board occurring within a two (2) year period, as a result of which fewer than a majority of the directors are Incumbent Directors. “Incumbent Directors” means directors who either (A) are Directors as of the
effective date of the Plan, or (B) are elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the 

 
Incumbent Directors at the time of such election or nomination (but shall not include an individual whose election or nomination is in connection with an actual or threatened proxy contest
relating to the election of directors to the Company); or 
 (iv) The consummation of a merger or consolidation
of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being
converted into voting securities of the surviving entity or its parent) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity or its parent outstanding immediately
after such merger or consolidation. 
 For the avoidance of doubt, a transaction shall not constitute a Change
in Control if: (i) its sole purpose is to change the state of the Company’s incorporation, or (ii) its sole purpose is to create a holding company that shall be owned in substantially the same proportions by the persons who held the
Company’s securities immediately before such transaction. 
 (e) “Code” means the Internal
Revenue Code of 1986, as amended. Any reference to a section of the Code herein shall be a reference to any successor or amended section of the Code. 
 (f) “Committee” means a committee of Directors or of other individuals satisfying Applicable Laws appointed by the Board, or by the compensation committee of the Board, in accordance with
Section 4 hereof. 
 (g) “Company” means Ambarella, Inc., a Cayman Islands corporation.

 (h) “Consultant” means any person who is engaged by the Company or any Parent or Subsidiary
to render consulting or advisory services to such entity. 
 (i) “Director” means a member of
the Board. 
 (j) “Disability” means total and permanent disability as defined in
Section 22(e)(3) of the Code. 
 (k) “Employee” means any person, including officers and
Directors, employed by the Company or any Parent or Subsidiary of the Company. Neither service as a Director nor payment of a director’s fee by the Company shall be sufficient to constitute “employment” by the Company. 

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

(m) “Exchange Program” means a program under which (i) outstanding Options are surrendered or
cancelled in exchange for Options of the same type (which may have lower or higher exercise prices and different terms), Options of a different type, and/or cash, and/or (ii) the exercise price of an outstanding Option is reduced. The terms and
conditions of any Exchange Program will be determined by the Administrator in its sole discretion. 

  
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 (n) “Fair Market Value” means, as of any date, the value of
Ordinary Shares determined as follows: 
 (i) If the Ordinary Shares are listed on any established stock
exchange or a national market system, including without limitation the Nasdaq Global Market, the Nasdaq Global Select Market or the Nasdaq Capital Market, its Fair Market Value shall be the closing sales price for such stock (or, if no closing sales
price was reported on that date, as applicable, on the last trading date such closing sales price was reported) as quoted on such exchange or system on the day of determination, as reported in The Wall Street Journal or such other source as
the Administrator deems reliable; 
 (ii) If the Ordinary Shares are regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value shall be the mean between the high bid and low asked prices for the Ordinary Shares on the day of determination (or, if no bids and asks were reported on that date, as
applicable, on the last trading date such bids and asks were reported); or 
 (iii) In the absence of an
established market for the Ordinary Shares, the Fair Market Value thereof shall be determined in good faith by the Administrator. 
 (o) “Incentive Stock Option” means an Option that by its terms qualifies and is otherwise intended to qualify as an incentive stock option within the meaning of Section 422 of the
Code and the regulations promulgated thereunder. 
 (p) “Nonstatutory Stock Option” means an
Option that by its terms does not qualify or is not intended to qualify as an Incentive Stock Option. 
 (q)
“Option” means a stock option granted pursuant to the Plan. 
 (r) “Option
Agreement” means a written or electronic agreement between the Company and an Optionee evidencing the terms and conditions of an individual Option grant. The Option Agreement is subject to the terms and conditions of the Plan. 

(s) “Optioned Stock” means the Ordinary Shares subject to an Option or a Stock Purchase Right.

 (t) “Optionee” means the holder of an outstanding Option or Stock Purchase Right granted
under the Plan. 
 (u) “Ordinary Shares” means the Ordinary Shares of the Company. 

(v) “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in
Section 424(e) of the Code. 
 (w) “Plan” means this 2004 Stock Plan. 

(x) “Restricted Stock” means Shares issued pursuant to a Stock Purchase Right or Shares of restricted
stock issued pursuant to an Option. 

  
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 (y) “Restricted Stock Purchase Agreement” means a written
or electronic agreement between the Company and the Optionee evidencing the terms and restrictions applying to Shares purchased under a Stock Purchase Right. The Restricted Stock Purchase Agreement is subject to the terms and conditions of the Plan
and the notice of grant. 
 (z) “Service Provider” means an Employee, Director or Consultant.

 (aa) “Share” means an Ordinary Share, as adjusted in accordance with Section 13 below.

 (bb) “Stock Purchase Right” means a right to purchase Ordinary Shares pursuant to
Section 11 below. 
 (cc) “Subsidiary” means a “subsidiary corporation,” whether
now or hereafter existing, as defined in Section 424(f) of the Code. 
 3. Stock Subject to the
Plan. Subject to the provisions of Section 13 of the Plan, the maximum aggregate number of Shares that may be subject to options or Stock Purchase Rights and sold under the Plan is 43,620,680 Shares. The Shares may be authorized but
unissued, or reacquired Ordinary Shares. 
 If an Option or Stock Purchase Right expires or becomes
unexercisable without having been exercised in full, or is surrendered pursuant to an Exchange Program, the unpurchased Shares that were subject thereto shall become available for future grant or sale under the Plan (unless the Plan has terminated).
However, Shares that have actually been issued under the Plan, upon exercise of either an Option or Stock Purchase Right, shall not be returned to the Plan and shall not become available for future distribution under the Plan, except that if
unvested Shares of Restricted Stock are repurchased by the Company at their original purchase price, such Shares shall become available for future grant under the Plan. Notwithstanding the foregoing and, subject to adjustment provided in
Section 13, the maximum number of Shares that may be issued upon the exercise of Incentive Stock Options shall equal the aggregate Share number stated in the first paragraph of this Section, plus, to the extent allowable under Section 422
of the Code, any Shares that become available for issuance under the Plan under this second paragraph of this Section. 
 4. Administration of the Plan. 
 (a) Administrator.
The Plan shall be administered by the Board or a Committee appointed by the Board, which Committee shall be constituted to comply with Applicable Laws. 
 (b) Powers of the Administrator. Subject to the provisions of the Plan and, in the case of a Committee, the specific duties delegated by the Board to such Committee, and subject to the approval of
any relevant authorities, the Administrator shall have the authority in its discretion: 
 (i) to determine the
Fair Market Value; 
 (ii) to select the Service Providers to whom Options and Stock Purchase Rights may from
time to time be granted hereunder; 

  
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 (iii) to determine the number of Shares to be covered by each such award
granted hereunder; 
 (iv) to approve forms of agreement for use under the Plan; 

(v) to determine the terms and conditions of any Option or Stock Purchase Right granted hereunder. Such terms and
conditions include, but are not limited to, the exercise price, the time or times when Options or Stock Purchase Rights may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, and
any restriction or limitation regarding any Option or Stock Purchase Right or the Ordinary Shares relating thereto, based in each case on such factors as the Administrator, in its sole discretion, shall determine; 

(vi) to institute an Exchange Program; 

(vii) to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and regulations
relating to sub-plans established for the purpose of satisfying applicable foreign laws; 
 (viii) to allow
Optionees to satisfy withholding tax obligations by electing to have the Company withhold from the Shares to be issued upon exercise of an Option or Stock Purchase Right that number of Shares having a Fair Market Value equal to the minimum amount
required to be withheld. The Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined. All elections by Optionees to have Shares withheld for this purpose shall be made
in such form and under such conditions as the Administrator may deem necessary or advisable; 
 (ix) to modify
or amend each Option or Stock Purchase Right (subject to Section 15(c) of the Plan) including but not limited to the discretionary authority to extend the post-termination exercise period of Options or Stock Purchase Rights and to extend the
maximum term of an Option (subject to Section 8 regarding Incentive Stock Options); 
 (x) to authorize
any person to execute on behalf of the Company any instrument required to effect the grant of an Option or Stock Purchase Right previously granted by the Administrator; and 

(xi) to construe and interpret the terms of the Plan and Options granted pursuant to the Plan. 

(c) Effect of Administrator’s Decision. All decisions, determinations and interpretations of the
Administrator shall be final and binding on all Optionees. 
 5. Eligibility. Nonstatutory Stock Options
and Stock Purchase Rights may be granted to Service Providers. Incentive Stock Options may be granted only to Employees. 

  
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 6. Limitations. 

(a) Incentive Stock Option Limit. Each Option shall be designated in the Option Agreement as either an Incentive
Stock Option or a Nonstatutory Stock Option. However, notwithstanding such designation, to the extent that the aggregate Fair Market Value of the Shares with respect to which Incentive Stock Options are exercisable for the first time by the Optionee
during any calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds $100,000, such Options shall be treated as Nonstatutory Stock Options. For purposes of this Section 6(a), Incentive Stock Options shall be taken into
account in the order in which they were granted. The Fair Market Value of the Shares shall be determined as of the time the Option with respect to such Shares is granted. 

(b) At-Will Employment. Neither the Plan nor any Option or Stock Purchase Right shall confer upon any Optionee any
right with respect to continuing the Optionee’s relationship as a Service Provider with the Company, nor shall it interfere in any way with his or her right or the Company’s right to terminate such relationship at any time, with or without
cause, and with or without notice. 
 7. Term of Plan. Subject to shareholder approval in accordance with
Section 19, the Plan shall become effective upon its adoption by the Board. Unless sooner terminated under Section 15, it shall continue in effect for a term of ten (10) years from the later of (i) the effective date of the Plan,
or (ii) the earlier of the most recent Board or shareholder approval of an increase in the number of Shares reserved for issuance under the Plan. 
 8. Term of Option. The term of each Option shall be stated in the Option Agreement; provided, however, that the term shall be no more than ten (10) years from the date of grant thereof. In the
case of an Incentive Stock Option granted to an Optionee who, at the time the Option is granted, owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the
term of the Option shall be five (5) years from the date of grant or such shorter term as may be provided in the Option Agreement. 
 9. Option Exercise Price and Consideration. 
 (a)
Exercise Price. The per share exercise price for the Shares to be issued upon exercise of an Option shall be such price as is determined by the Administrator, but shall be subject to the following: 

(i) In the case of an Incentive Stock Option 

(A) granted to an Employee who, at the time of grant of such Option, owns stock representing more than ten percent
(10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the exercise price shall be no less than one hundred and ten percent (110%) of the Fair Market Value per Share on the date of grant. 

(B) granted to any other Employee, the per Share exercise price shall be no less than one hundred percent (100%) of
the Fair Market Value per Share on the date of grant. 

  
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 (ii) In the case of a Nonstatutory Stock Option, the per Share exercise
price shall be no less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant. 
 (iii) Notwithstanding the foregoing, Incentive Stock Options may be granted with a per Share exercise price other than as required above in accordance with, and pursuant to a transaction described in
Section 424 of the Code. 
 (b) Forms of Consideration. The consideration to be paid for the Shares
to be issued upon exercise of an Option, including the method of payment, shall be determined by the Administrator (and, in the case of an Incentive Stock Option, shall be determined at the time of grant). Such consideration may consist of, without
limitation, (1) cash, (2) check, (3) promissory note, to the extent permitted by Applicable Laws, (4) other Shares, provided that such Shares have a Fair Market Value on the date of surrender equal to the aggregate exercise price
of the Shares as to which such Option shall be exercised and provided that accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse accounting consequences to the Company, (5) consideration received by
the Company under a cashless exercise program implemented by the Company in connection with the Plan, (6) such other consideration and method of payment for the issuance of Shares to the extent permitted by Applicable Laws, or (7) any
combination of the foregoing methods of payment. In making its determination as to the type of consideration to accept, the Administrator shall consider if acceptance of such consideration may be reasonably expected to benefit the Company.

 10. Exercise of Option. 

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

An Option shall be deemed exercised when the Company receives: (i) written or electronic notice of exercise (in
accordance with the Option Agreement) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised, together with any applicable withholding taxes. Full payment may consist
of any consideration and method of payment authorized by the Administrator and permitted by the Option Agreement and the Plan. Shares issued upon exercise of an Option shall be issued in the name of the Optionee or, if requested by the Optionee, in
the name of the Optionee and his or her spouse. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other
rights as a shareholder shall exist with respect to the Shares, notwithstanding the exercise of the Option. The Company shall issue (or cause to be issued) such Shares promptly after the Option is exercised. No adjustment will be made for a dividend
or other right for which the record date is prior to the date the Shares are issued, except as provided in Section 13 of the Plan. 
 Exercise of an Option in any manner shall result in a decrease in the number of Shares thereafter available, both for purposes of the Plan and for sale under the Option, by the number of Shares as to
which the Option is exercised. 

  
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 (b) Termination of Relationship as a Service Provider. If an Optionee
ceases to be a Service Provider, such Optionee may exercise his or her Option within such period of time as is specified in the Option Agreement, to the extent that the Option is vested on the date of termination (but in no event later than the
expiration of the term of the Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for three (3) months following the Optionee’s termination. Unless
the Administrator provides otherwise, if on the date of termination the Optionee is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the Optionee
does not exercise his or her Option within the time specified by the Administrator, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. 

(c) Disability of Optionee. If an Optionee ceases to be a Service Provider as a result of the Optionee’s
Disability, the Optionee may exercise his or her Option within such longer period of time as is specified in the Option Agreement, to the extent the Option is vested on the date of termination (but in no event later than the expiration of the term
of such Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for twelve (12) months following the Optionee’s termination. Unless the Administrator
provides otherwise, if on the date of termination the Optionee is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the Optionee does not exercise his
or her Option within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. 
 (d) Death of Optionee. If an Optionee dies while a Service Provider, the Option may be exercised within such longer period of time as is specified in the Option Agreement, to the extent that the
Option is vested on the date of death (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement) by the Optionee’s designated beneficiary, provided such beneficiary has been designated prior to
Optionee’s death in a form acceptable to the Administrator. If no such beneficiary has been designated by the Optionee, then such Option may be exercised by the personal representative of the Optionee’s estate or by the person(s) to whom
the Option is transferred pursuant to the Optionee’s will or in accordance with the laws of descent and distribution. In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for twelve (12) months
following the Optionee’s termination. If, at the time of death, the Optionee is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall immediately revert to the Plan. If the Option is not so
exercised within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan. 
 (e) Leaves of Absence. 
 (i) Unless the Administrator
provides otherwise, vesting of Options granted hereunder shall be suspended during any unpaid leave of absence. 
 (ii) A Service Provider shall not cease to be a Service Provider in the case of (A) any leave of absence approved by the Company, or (B) transfers between locations of the Company or between the
Company, its Parent, any Subsidiary, or any successor. 

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

11. Stock Purchase Rights. 

(a) Rights to Purchase. Stock Purchase Rights may be issued either alone, in addition to, or in tandem with other
awards granted under the Plan and/or cash awards made outside of the Plan. After the Administrator determines that it will offer Stock Purchase Rights under the Plan, it shall advise the offeree in writing or electronically of the terms, conditions
and restrictions related to the offer, including the number of Shares that such person shall be entitled to purchase, the price to be paid (if any), and the time within which such person must accept such offer. The offer shall be accepted by
execution of a Restricted Stock Purchase Agreement in the form determined by the Administrator. 
 (b)
Repurchase Option. Unless the Administrator determines otherwise, the Restricted Stock Purchase Agreement shall grant the Company a repurchase option exercisable within ninety (90) days of the voluntary or involuntary termination of the
purchaser’s service with the Company for any reason (including death or Disability). Unless the Administrator provides otherwise, the purchase price for Shares repurchased pursuant to the Restricted Stock Purchase Agreement shall be the
original price paid by the purchaser and may be paid by cancellation of any indebtedness of the purchaser to the Company. The repurchase option shall lapse at such rate as the Administrator may determine. 

(c) Other Provisions. The Restricted Stock Purchase Agreement shall contain such other terms, provisions and
conditions not inconsistent with the Plan as may be determined by the Administrator in its sole discretion. 

(d) Rights as a Shareholder. Once the Stock Purchase Right is exercised, the purchaser shall have rights
equivalent to those of a shareholder and shall be a shareholder when his or her purchase is entered upon the records of the duly authorized transfer agent of the Company. No adjustment shall be made for a dividend or other right for which the record
date is prior to the date the Stock Purchase Right is exercised, except as provided in Section 13 of the Plan. 
 12. Transferability of Options and Stock Purchase Rights. Unless determined otherwise by the Administrator, Options and Stock Purchase Rights may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or the laws of descent and distribution, and may be exercised during the lifetime of the Optionee, only by the Optionee. 

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

(a) Adjustments. In the event that any dividend or other distribution (whether in the form of cash, Shares, other
securities, or other property), recapitalization, stock split, reverse stock split, reorganization, merger, consolidation, split-up, spin-off, combination, repurchase, or exchange of Shares or other securities of the Company, or other change in the
corporate structure of 

  
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the Company affecting the Shares occurs, the Administrator, in order to prevent diminution or enlargement of the benefits or potential benefits intended to be made available under the Plan, shall
adjust the number and class of Shares that may be delivered under the Plan and/or the number, class, and price of Shares covered by each outstanding Option or Stock Purchase Right 

(b) Dissolution or Liquidation. In the event of the proposed dissolution or liquidation of the Company, the
Administrator shall notify each Optionee as soon as practicable prior to the effective date of such proposed transaction. To the extent it has not been previously exercised, an Option or Stock Purchase Right will terminate immediately prior to the
consummation of such proposed action. 
 (c) Merger or Change in Control. In the event of a merger of the
Company with or into another corporation, or a Change in Control, each outstanding Option and Stock Purchase Right shall be assumed or an equivalent option substituted by the successor corporation or a Parent or Subsidiary of the successor
corporation. In the event that the successor corporation in a merger or Change in Control refuses to assume or substitute for the Option or Stock Purchase Right, then the Optionee shall fully vest in and have the right to exercise the Option or
Stock Purchase Right as to all of the Optioned Stock, including Shares as to which it would not otherwise be vested or exercisable. If an Option or Stock Purchase Right becomes fully vested and exercisable in lieu of assumption or substitution in
the event of a merger or Change in Control, the Administrator shall notify the Optionee in writing or electronically that the Option or Stock Purchase Right shall be fully exercisable for a period of time determined by the Administrator, and the
Option or Stock Purchase Right shall terminate upon expiration of such period. For the purposes of this paragraph, the Option or Stock Purchase Right shall be considered assumed if, following the merger or Change in Control, the option or right
confers the right to purchase or receive, for each Share of Optioned Stock subject to the Option or Stock Purchase Right immediately prior to the merger or Change in Control, the consideration (whether stock, cash, or other securities or property)
received in the merger or Change in Control by holders of Ordinary Shares for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a
majority of the outstanding Shares); provided, however, that if such consideration received in the merger or Change in Control is not solely stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor
corporation, provide for the consideration to be received upon the exercise of the Option or Stock Purchase Right, for each Share of Optioned Stock subject to the Option or Stock Purchase Right, to be solely stock of the successor corporation or its
Parent equal in fair market value to the per share consideration received by holders of Ordinary Shares in the merger or Change in Control. 
 14. Time of Granting Options and Stock Purchase Rights. The date of grant of an Option or Stock Purchase Right shall, for all purposes, be the date on which the Administrator makes the
determination granting such Option or Stock Purchase Right, or such later date as is determined by the Administrator. Notice of the determination shall be given to each Service Provider to whom an Option or Stock Purchase Right is so granted within
a reasonable time after the date of such grant. 

  
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 15. Amendment and Termination of the Plan. 

(a) Amendment and Termination. The Board may at any time amend, alter, suspend or terminate the Plan. 

(b) Shareholder Approval. The Board shall obtain shareholder approval of any Plan amendment to the extent
necessary and desirable to comply with Applicable Laws. 
 (c) Effect of Amendment or Termination. No
amendment, alteration, suspension or termination of the Plan shall impair the rights of any Optionee, unless mutually agreed otherwise between the Optionee and the Administrator, which agreement must be in writing (which may include e-mail) and
signed by the Optionee and the Company. Termination of the Plan shall not affect the Administrator’s ability to exercise the powers granted to it hereunder with respect to Options granted under the Plan prior to the date of such termination.

 16. Conditions Upon Issuance of Shares. 

(a) Legal Compliance. Shares shall not be issued pursuant to the exercise of an Option unless the exercise of such
Option and the issuance and delivery of such Shares shall comply with Applicable Laws and shall be further subject to the approval of counsel for the Company with respect to such compliance. 

(b) Investment Representations. As a condition to the exercise of an Option, the Administrator may in its
discretion require the person exercising such Option to represent and warrant at the time of any such exercise that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares. 

17. Inability to Obtain Authority. The inability of the Company to obtain authority from any regulatory body
having jurisdiction, which authority is deemed by the Company’s counsel to be necessary to the lawful issuance and sale of any Shares hereunder, shall relieve the Company of any liability in respect of the failure to issue or sell such Shares
as to which such requisite authority shall not have been obtained. 
 18. Reservation of Shares. The
Company, during the term of this Plan, shall at all times reserve and keep available such number of Shares as shall be sufficient to satisfy the requirements of the Plan. 

19. Shareholder Approval. The Plan shall be subject to approval by the shareholders of the Company within twelve
(12) months after the date the Plan is adopted. Such shareholder approval shall be obtained in the degree and manner required under Applicable Laws. 

  
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 APPENDIX A 
 TO 
 AMBARELLA, INC. 2004 STOCK PLAN 

(as amended and restated August 28, 2007) 
 (for California residents only, to the extent required by 25012(o)) 
 This Appendix A to the Ambarella, Inc. 2004 Stock Plan shall apply only to Optionees who are residents of the State of California, who are natural persons and who are receiving an Option or Stock Purchase
Right under the Plan and for which the Administrator has determined it is relying on §25102(o), a California securities law exemption. Capitalized terms contained herein shall have the same meanings given to them in the Plan, unless otherwise
provided by this Appendix A. Notwithstanding any provisions contained in the Plan to the contrary and to the extent required by Applicable Laws, the following terms shall apply to all Options and Stock Purchase Rights granted to residents of the
State of California who are natural persons, until such time as the Administrator amends this Appendix A or the Administrator otherwise provides. 
 (a) The term of each Option shall be stated in the Option Agreement, provided, however, that the term shall be no more than ten (10) years from the date of grant thereof. The term of each Restricted
Stock Purchase Agreement shall be no more than ten (10) years from the date the agreement is entered into. 

(b) Unless determined otherwise by the Administrator, Options or Stock Purchase Rights may not be sold, pledged,
assigned, hypothecated, transferred, or disposed of in any manner other than by will or the laws of descent and distribution, and may be exercised during the lifetime of the Optionee, only by the Optionee. If the Administrator in its sole discretion
makes an Option or Stock Purchase Right transferable, such Option or Stock Purchase Right may only be transferred (i) by will, (ii) by the laws of descent and distribution, (iii) to a revocable trust, or (iv) as permitted by Rule
701 of the Securities Act of 1933, as amended. 
 (c) If an Optionee ceases to be a Service Provider, such
Optionee may exercise his or her Option within thirty (30) days of termination, or such longer period of time as specified in the Option Agreement, to the extent that the Option is vested on the date of termination (but in no event later than
the expiration of the term of the Option as set forth in the Option Agreement). 
 (d) If an Optionee ceases to
be a Service Provider as a result of the Optionee’s Disability, Optionee may exercise his or her Option within six (6) months of termination, or such longer period of time as specified in the Option Agreement, to the extent the Option is
vested on the date of termination (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement). 
 (e) If an Optionee dies while a Service Provider, the Option may be exercised within six (6) months following the Optionee’s death, or such longer period of time as specified in the Option
Agreement, to the extent the Option is vested on the date of termination (but in no event later 

 
than the expiration of the term of such Option as set forth in the Option Agreement) by the Optionee’s designated beneficiary, personal representative, or by the person(s) to whom the Option
is transferred pursuant to the Optionee’s will or in accordance with the laws of descent and distribution. 

(f) No Option or Stock Purchase Right shall be granted to a natural-person resident of California more than ten
(10) years after the earlier of the date of adoption of the Plan or the date the Plan is approved by the shareholders. 
 (g) In the event that any dividend or other distribution (whether in the form of cash, Shares, other securities, or other property), recapitalization, stock split, reverse stock split, reorganization,
merger, consolidation, split-up, spin-off, combination, repurchase, or exchange of Shares or other securities of the Company, or other change in the corporate structure of the Company affecting the Shares occurs, the Administrator, in order to
prevent diminution or enlargement of the benefits or potential benefits intended to be made available under the Plan, shall adjust the number and class of Ordinary Shares that may be delivered under the Plan and/or the number, class, and price of
shares covered by each outstanding Option. The Administrator shall also make such adjustments to the extent required by Section 25102(o) of the California Corporations Code. 

(h) This Appendix A shall be deemed to be part of the Plan and the Administrator shall have the authority to amend this
Appendix A in accordance with Section 15 of the Plan. 

  
 -2-Form of Stock Option Agreement under Amended and Restated 2004 Stock Plan

 Exhibit 10.1.2 
 AMBARELLA, INC. 
 2004 STOCK PLAN 

STOCK OPTION GRANT NOTICE 
 AMBARELLA, INC. (the “Company”), pursuant to its 2004 Stock Plan (the “Plan”), hereby grants to Optionee an Option to purchase the number of shares
of the Company’s Ordinary Shares (“Shares”) as set forth below. This Option is subject to all of the terms and conditions as set forth in this Stock Option Grant Notice and the Stock Option Agreement (together, the “Option
Agreement”), and the Plan all of which are attached hereto and incorporated herein in their entirety. 
  

					
	 Optionee:
	  	  
	  	
	 Grant Number:
	  	  
	  	
	 Date of Grant:
	  	  
	  	
	 Vesting Commencement Date:
	  	  
	  	
	 Number of Shares Granted:
	  	  
	  	
	 Exercise Price (Per Share):
	  	 US $
	  	
	 Total Exercise Price:
	  	 US $
	  	
	 Expiration Date:
	  	  
	  	

  

					
	 Type of Grant:
	  	  ̈ Incentive Stock Option
	  	  ̈ Nonstatutory Option

	 Exercise Schedule:
	  	  ̈ Same as Vesting Schedule
	  	  ̈ Early Exercise Permitted

	 Vesting Schedule:
	  	

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

  ̈ Cash, check, or wire transfer  ̈ Cashless exercise program, if the Shares are publicly traded 
  ̈ Surrender of certain other Shares, if the Shares are publicly traded 

Acknowledgements: The undersigned Optionee acknowledges receipt of, and understands and agrees to, the Option Agreement. Optionee
hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under the Plan or this Option. Optionee further acknowledges that as of the Date of Grant, the Option Agreement
sets forth the entire understanding between Optionee and the Company regarding the acquisition of stock in the Company and supersede all prior oral and written agreements related to the Option with the exception of the following agreements only:

  

			
	 OTHER AGREEMENTS:
	 	  

 

									
	AMBARELLA, INC.	  		  	OPTIONEE:
				
	 By:
	 	  
	  		  	  

		 	Signature	  		  	Signature
					
	 Title:
	 		  		  	 Address:
	 	  

		 		  		  	
 

									
					
		 		  		  	 Date: 
	 	  

ATTACHMENTS: Stock Option Agreement, the Plan, and the Restricted Stock Purchase Agreement

 AMBARELLA, INC. 

2004 STOCK PLAN 
 STOCK OPTION AGREEMENT 
 Unless otherwise defined herein,
the terms defined in the 2004 Stock Plan (the “Plan”) shall have the same defined meanings in this Option Agreement. 
 1. Grant of Option. The Administrator of the Company hereby grants to the optionee named in the Stock Option Grant Notice (the “Optionee”), an option (the “Option”) to purchase
the number of Shares set forth in the Stock Option Grant Notice, at the exercise price per Share set forth in the Stock Option Grant Notice (the “Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated
herein by reference. Subject to Section 15(c) of the Plan, in the event of a conflict between the terms and conditions of the Plan and this Option Agreement, the terms and conditions of the Plan shall prevail. 

If designated in the Stock Option Grant Notice as an Incentive Stock Option (“ISO”), this Option is intended to
qualify as an Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of Code Section 422(d), this Option shall be treated as a Nonstatutory Stock Option
(“NSO”). Further, if for any reason this Option (or portion thereof) shall not qualify as an ISO, then, to the extent of such nonqualification, such Option (or portion thereof) shall be regarded as a NSO granted under the Plan. In no event
shall the Administrator, the Company or any Parent or Subsidiary or any of their respective employees or directors have any liability to Optionee (or any other person) due to the failure of the Option to qualify for any reason as an ISO. 

2. Termination Period. This Option shall be exercisable for three (3) months after Optionee ceases to be a
Service Provider, unless such termination is due to Optionee’s death or Disability, in which ase this Option shall be exercisable for twelve (12) months after Optionee ceases to be a Service Provider. Nowithstanding the foregoing sentence,
in no even may this Option be exercised after the Expiration Date as provided in the Stock Option Grant Notice and this Option may be subject to earlier termination as provided in Section 13(c) of the Plan. 

3. Exercise of Option. This Option shall be exercisable during its term in accordance with the provisions of
Section 10 of the Plan as follows: 
 (a) Right to Exercise. 

(i) If No Early Exercise. If Early Exercise is not permitted as indicated in the Stock Option Grant Notice,
Section 2(a)(ii) of this Option Agreement shall not apply and this Option shall be exercisable cumulatively according to the vesting schedule set forth in the Stock Option Grant Notice and in accordance with the application provsions of the
Plan and this Option Agreement. 
 (ii) If Early Exercise. If the Stock Option Grant Notice permits
Early Exercise, at the election of the Optionee, this Option may be exercised in whole or in part at any time as to Shares that have not yet vested, subject to subsections 2(a)(ii)(x) and 2(a)(ii)(y) below. Vested Shares shall not be subject to the
Company’s repurchase right (as set forth in the Restricted Stock Purchase Agreement, attached hereto as Exhibit C-1). 
 (x) As a condition to exercising this Option for unvested Shares, the Optionee shall execute the Restricted Stock Purchase Agreement. 

 (y) This Option may not be exercised for a fraction of a Share. 

(b) Method of Exercise. This Option shall be exercisable by delivery of an exercise notice in the form attached as
Exhibit A (the “Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which shall state the election to exercise the Option, the number of Shares with respect to which the Option is
being exercised, and such other representations and agreements as may be required by the Company. The Exercise Notice shall be accompanied by payment of the aggregate Exercise Price as to all Exercised Shares, together with any applicable tax
withholding. This Option shall be deemed to be exercised upon receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price, together with any applicable tax withholding. 

No Shares shall be issued pursuant to the exercise of an Option unless such issuance and such exercise comply with
Applicable Laws. Assuming such compliance, for income tax purposes the Shares shall be considered transferred to the Optionee on the date on which the Option is exercised with respect to such Shares. 

4. Optionee’s Representations. In the event the Shares have not been registered under the Securities Act of
1933, as amended, at the time this Option is exercised, the Optionee shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment Representation Statement in the
form attached hereto as Exhibit B. 
 5. Lock-Up Period. Optionee hereby agrees that Optionee
shall not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
Ordinary Shares (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Ordinary Shares (or other securities) of
the Company held by Optionee (other than those included in the registration) for a period specified by the representative of the underwriters of Ordinary Shares (or other securities) of the Company not to exceed one hundred and eighty
(180) days following the effective date of any registration statement of the Company filed under the Securities Act (or such other period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on
(i) the publication or other distribution of research reports and (ii) analyst recommendations and opinions, including, but not limited to, the restrictions contained in NASD Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any
successor provisions or amendments thereto). 
 Optionee agrees to execute and deliver such other agreements as
may be reasonably requested by the Company or the underwriter which are consistent with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative of the underwriters of
Ordinary Shares (or other securities) of the Company, Optionee shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of any public
offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations described in this Section 5 shall not apply to a registration relating solely to employee benefit plans on Form S-1
or Form S-8 or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer
instructions with respect to the shares of Ordinary Shares (or other securities) subject to the foregoing restriction until the end of said one hundred and eighty (180) day (or other) period. Optionee agrees that any transferee of the Option or
shares acquired pursuant to the Option shall be bound by this Section 5. 

  
 -2-

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

(b) check; 
 (c) wire transfer; 
 (d) if the Shares are publicly traded,
consideration received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or 
 (e) if the Shares are publicly traded, surrender of other Shares which (i) shall be valued at its Fair Market Value on the date of exercise, and (ii) must be owned free and clear of any liens,
claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse accounting consequences to the Company. 

7. Restrictions on Exercise. This Option may not be exercised until such time as the Plan has been approved by the
shareholders of the Company, or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute a violation of any Applicable Law. 

8. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than by will or by
the laws of descent or distribution and may be exercised during the lifetime of Optionee only by Optionee. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of the
Optionee. 
 9. Term of Option. This Option may be exercised only within the term set out in the Stock
Option Grant Notice, and may be exercised during such term only in accordance with the Plan and the terms of this Option. 
 10. Tax Obligations. 
 (a) Tax Withholding. Optionee
agrees to make appropriate arrangements with the Company (or the Parent or Subsidiary employing or retaining Optionee) for the satisfaction of all Federal, state, local and foreign income and employment tax withholding requirements applicable to the
Option exercise. Optionee acknowledges and agrees that the Company may refuse to honor the exercise and refuse to deliver the Shares if such withholding amounts are not delivered at the time of exercise. 

(b) Tax Consultation. Optionee understands that he or she may suffer adverse tax consequences as a result of
Optionee’s purchase or disposition of the Shares. Optionee represents that he or she will consult with any tax advisors Optionee deems appropriate in connection with the purchase or disposition of the Shares and that Optionee is not relying on
the Company for any tax advice. 
 (c) Notice of Disqualifying Disposition of ISO Shares. If the Option
granted to Optionee herein is an ISO, and if Optionee sells or otherwise disposes of any of the Shares acquired pursuant to the ISO on or before the later of (i) the date two (2) years after the Date of Grant, or (ii) the date one
(1) year after the date of exercise, the Optionee shall immediately notify the Company in writing of such disposition. Optionee agrees that Optionee may be subject to income tax withholding by the Company on the compensation income recognized
by the Optionee. 

  
 -3-

 (d) Code Section 409A. (Applicable only for individuals subject
to taxation in the United States). Under Code Section 409A, an Option that vests after December 31, 2004 (or that vested on or prior to such date but which was materially modified after October 3, 2004) that was granted with a per
Share exercise price that is determined by the Internal Revenue Service (the “IRS”) to be less than the Fair Market Value of a Share on the date of grant (a “discount option”) may be considered “deferred compensation.”
An Option that is a “discount option” may result in (i) income recognition by Optionee prior to the exercise of the Option, (ii) an additional twenty percent (20%) federal income tax, and (iii) potential penalty and
interest charges. The “discount option” may also result in additional state income, penalty and interest tax to the Optionee. Optionee acknowledges that the Company cannot and has not guaranteed that the IRS will agree that the per Share
exercise price of this Option equals or exceeds the Fair Market Value of a Share on the date of grant in a later examination. Optionee agrees that if the IRS determines that the Option was granted with a per Share exercise price that was less than
the Fair Market Value of a Share on the date of grant, Optionee shall be solely responsible for Optionee’s costs related to such a determination. 
 11. Acknowledgements. 
 (a) Optionee acknowledges receipt of
a copy of the Plan (including any applicable appendixes or sub-plans thereunder) and represents that he or she is familiar with the terms and provisions thereof, and hereby accepts this Option subject to all of the terms and provisions thereof.
Optionee has reviewed the Plan (including any applicable appendixes or sub-plans thereunder) and this Option Agreement in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Option and fully understands all
provisions of the Option. Optionee hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under the Plan or this Option. Optionee further agrees to notify the Company
upon any change in the residence address indicated in the Stock Option Grant Notice. 
 (b) The Company (and not
Optionee’s employer) is granting the Option. The Company will administer the Plan from outside Optionee’s country of residence and that United States of America law will govern all Options granted under the Plan. 

(c) That benefits and rights provided under the Plan are wholly discretionary and, although provided by the Company, do
not constitute regular or periodic payments. The benefits and rights provided under the Plan are not to be considered part of Optionee’ s salary or compensation for purposes of calculating any severance, resignation, redundancy or other end of
service payments, vacation, bonuses, long-term service awards, indemnification, pension or retirement benefits, or any other payments, benefits or rights of any kind. Optionee waives any and all rights to compensation or damages as a result of the
termination of employment with the Company for any reason whatsoever insofar as those rights result or may result from: 
 (i) the loss or diminution in value of such rights under the Plan, or 
 (ii) Optionee ceases to have any rights under, or ceases to be entitled to any rights under the Plan as a result of such termination. 

(d) The grant of the Option, and any future grant of Options under the Plan is entirely voluntary, and at the complete
discretion of the Company. Neither the grant of the Option nor any future grant of an Option by the Company will be deemed to create any obligation to grant any further Options, whether or not such a reservation is explicitly stated at the time of
such a grant. The Company has the right, at any time to amend, suspend or terminate the Plan. 

  
 -4-

 (e) The Plan will not be deemed to constitute, and will not be construed by
Optionee to constitute, part of the terms and conditions of employment, and that the Company will not incur any liability of any kind to Optionee as a result of any change or amendment, or any cancellation, of the Plan at any time. 

(f) Participation in the Plan will not be deemed to constitute, and will not be deemed by Optionee to constitute, an
employment or labor relationship of any kind with the Company. 
 (g) By entering into this Option Agreement,
and as a condition of the grant of the Option, Optionee consents to the collection, use, and transfer of personal data as described in this subsection to the full extent permitted by and in full compliance with Applicable Law. 

(i) Optionee understands that the Company and its Subsidiaries hold certain personal information about the Optionee,
including, but not limited to, name, home address and telephone number, date of birth, social insurance number, salary, nationality, job title, any Shares or directorships held in the Company, details of all Options or other entitlement to Shares
awarded, canceled, exercised, vested, unvested, or outstanding in Optionee’s favor, for the purpose of managing and administering the Plan (“Data”). 

(ii) Optionee further understands that the Company and/or its Subsidiaries will transfer Data among themselves as
necessary for the purposes of implementation, administration, and management of Optionee’s participation in the Plan, and that the Company and/or its Subsidiary may each further transfer Data to any third parties assisting the Company in the
implementation, administration, and management of the Plan (“Data Recipients”). 
 (iii) Optionee
understands that these Data Recipients may be located in Optionee’s country of residence or elsewhere, such as the United States. Optionee authorizes the Data Recipients to receive, possess, use, retain, and transfer Data in electronic or other
form, for the purposes of implementing, administering, and managing Optionee’s participation in the Plan, including any transfer of such Data, as may be required for the administration of the Plan and/or the subsequent holding of Shares on
Optionee’ s behalf, to a broker or third party with whom the Shares acquired on exercise may be deposited. 
 (iv) Optionee understands that Optionee may, at any time, review the Data, request that any necessary amendments be made to it, or withdraw Optionee’s consent herein in writing by contacting the
Company. Optionee further understands that withdrawing consent may affect Optionee’s ability to participate in the Plan. 
 (h) Optionee has received the terms and conditions of this Option Agreement and any other related communications, and Optionee consents to having received these documents in English. 

12. Entire Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and the Option
Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Optionee with respect to the subject matter hereof except as
disclosed as “Other Agreements” in the Stock Option Grant Notice, and may not be modified adversely to the Optionee’s interest except by means of a writing signed by the Company and Optionee. This Option Agreement is governed by the
internal substantive laws but not the choice of law rules of California. 
 13. No Guarantee of Continued
Service. OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT

  
 -5-

 
OR SUBSIDIARY EMPLOYING OR RETAINING OPTIONEE) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS OPTION OR ACQUIRING SHARES HEREUNDER. OPTIONEE FURTHER ACKNOWLEDGES AND AGREES THAT THIS
AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL
NOT INTERFERE IN ANY WAY WITH OPTIONEE’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING OPTIONEE) TO TERMINATE OPTIONEE’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE.

  
 -6-

 EXHIBIT A 

AMBARELLA, INC. 
 2004 STOCK PLAN 
 EXERCISE NOTICE 

Ambarella, Inc. 

2975 San Ysidro Way 
 Santa Clara, CA 95051 
 Attention: Chief Executive Officer 

1. Exercise of Option. Effective as of today,
                ,     , the undersigned (“Optionee”) hereby elects to exercise Optionee’s option (the
“Option”) to purchase          Ordinary Shares (the “Shares”) of Ambarella, Inc. (the “Company”) under and pursuant to the 2004 Stock Plan (the “Plan”) and the
Stock Option Grant Notice and related Stock Option Agreement dated                 ,      (together, the “Option Agreement”).

 2. Delivery of Payment. Optionee herewith delivers to the Company the full purchase price of the
Shares, as set forth in the Option Agreement, and any and all withholding taxes due in connection with the exercise of the Option. 
 3. Representations of Optionee. Optionee acknowledges that Optionee has received, read and understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and
conditions. 
 4. Rights as Shareholder. Until the issuance of the Shares (as evidenced by the
appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a shareholder shall exist with respect to the Optioned Stock, notwithstanding the
exercise of the Option. The Shares shall be issued to the Optionee as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date is
prior to the date of issuance except as provided in Section 13 of the Plan. 
 5. Company’s Right
of First Refusal. Before any Shares held by Optionee or any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or
its assignee(s) shall have a right of first refusal to purchase the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 

(a) Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the
“Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser or other transferee (“Proposed Transferee”); (iii) the number of
Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the
Offered Price to the Company or its assignee(s). 
 (b) Exercise of Right of First Refusal. At any time
within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to 

 
purchase all, but not less than all, of the Shares proposed to be transferred to any one or more of the Proposed Transferees, at the purchase price determined in accordance with
subsection (c) below. 
 (c) Purchase Price. The purchase price (“Purchase Price”) for the
Shares purchased by the Company or its assignee(s) under this Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of the non-cash consideration shall be determined by the
Board of Directors of the Company in good faith. 
 (d) Payment. Payment of the Purchase Price shall be
made, at the option of the Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee, to the assignee), or by any
combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 
 (e) Holder’s Right to Transfer. If all of the Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided
in this Section 5, then the Holder may sell or otherwise transfer such Shares to that Proposed Transferee at the Offered Price or at a higher price, provided that such sale or other transfer is consummated within one hundred and twenty
(120) days after the date of the Notice, that any such sale or other transfer is effected in accordance with any applicable securities laws and that the Proposed Transferee agrees in writing that the provisions of this Section 5 shall
continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice are not transferred to the Proposed Transferee within such period, a new Notice shall be given to the Company, and the Company and/or its
assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 
 (f) Exception for Certain Family Transfers. Anything to the contrary contained in this Section 5 notwithstanding, the transfer of any or all of the Shares during the Optionee’s lifetime
or on the Optionee’s death by will or intestacy to the Optionee’s immediate family or a trust for the benefit of the Optionee’s immediate family shall be exempt from the provisions of this Section 5. “Immediate Family”
as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother or sister. In such case, the transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions of this Section 5,
and there shall be no further transfer of such Shares except in accordance with the terms of this Section 5. 
 (g) Termination of Right of First Refusal. The Right of First Refusal shall terminate as to any Shares upon the earlier of (i) the first sale of Ordinary Shares of the Company to the general
public, or (ii) a Change in Control in which the successor corporation has equity securities that are publicly traded. 
 6. Tax Consultation. Optionee understands that Optionee may suffer adverse tax consequences as a result of Optionee’s purchase or disposition of the Shares. Optionee represents that Optionee
has consulted with any tax consultants Optionee deems advisable in connection with the purchase or disposition of the Shares and that Optionee is not relying on the Company for any tax advice. 

7. Restrictive Legends and Stop-Transfer Orders. 

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

  
 -2-

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

 (b) Stop-Transfer Notices. Optionee agrees that, in order to ensure compliance with the
restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect
in its own records. 
 (c) Refusal to Transfer. The Company shall not be required (i) to transfer on
its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Exercise Notice or (ii) to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other
transferee to whom such Shares shall have been so transferred. 
 8. Successors and Assigns. The Company
may assign any of its rights under this Exercise Notice to single or multiple assignees, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth, this
Exercise Notice shall be binding upon Optionee and his or her heirs, executors, administrators, successors and assigns. 
 9. Interpretation. Any dispute regarding the interpretation of this Exercise Notice shall be submitted by Optionee or by the Company forthwith to the Administrator, which shall review such dispute
at its next regular meeting. The resolution of such a dispute by the Administrator shall be final and binding on all parties. 
 10. Governing Law; Severability. This Exercise Notice is governed by the internal substantive laws, but not the choice of law rules, of California. In the event that any provision hereof becomes or
is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in full force and effect. 

  
 -3-

 11. Entire Agreement. The Plan and Option Agreement are incorporated
herein by reference. This Exercise Notice, the Plan, the Option Agreement, the Investment Representation Statement, and if the Option is early exercised, the Restricted Stock Purchase Agreement, constitute the entire agreement of the parties with
respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Optionee with respect to the subject matter hereof except as disclosed as “Other Agreements” in the Stock Option
Grant Notice, and may not be modified adversely to the Optionee’s interest except by means of a writing signed by the Company and Optionee. 
  

					
	 Submitted by:
	 		  	 Accepted by:

			
	 OPTIONEE
	 		  	 AMBARELLA, INC.

			
	  
	 		  	  

	 Signature
	 		  	 By

			
	  
	 		  	  

	 Print Name
	 		  	 Its

			
	 Address:
	 		  	 Address:

	  
	 		  	  

	  
	 		  	  

	  
	 		  	  

			
		 		  	  

		 		  	 Date Received

  
 -4-

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
			
	 OPTIONEE
	  	:	  	
			
	 COMPANY
	  	:	  	 AMBARELLA, INC.

			
	 SECURITY
	  	:	  	 ORDINARY SHARES

			
	 AMOUNT
	  	:	  	
			
	 DATE
	  	:	  	

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

(b) Optionee acknowledges and understands that the Securities constitute “restricted securities” under the
Securities Act and have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of Optionee’s investment intent as expressed herein. In
this connection, Optionee understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be unavailable if Optionee’s representation was predicated solely upon a present intention to hold
these Securities for the minimum capital gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in the market price of the Securities, or for a period of one (1) year or any other fixed period in
the future. Optionee further understands that the Securities must be held indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration is available. Optionee further acknowledges and
understands that the Company is under no obligation to register the Securities. Optionee understands that the certificate evidencing the Securities will be imprinted with any legend required under applicable state securities laws. 

(c) Optionee is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities
Act, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides
that if the issuer qualifies under Rule 701 at the time of the grant of the Option to the Optionee, the exercise will be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements
of Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under Rule 701 may be resold, subject to the
satisfaction of certain of the conditions specified by Rule 144, including: (1) the resale being made through a broker in an unsolicited “broker’s transaction” or in transactions directly with a market maker (as said
term is defined under the Securities Exchange Act of 1934); and, in the case of an affiliate, (2) the availability of certain public 

 
information about the Company, (3) the amount of Securities being sold during any three (3) month period not exceeding the limitations specified in Rule 144(e), and (4) the
timely filing of a Form 144, if applicable. 
 In the event that the Company does not qualify under
Rule 701 at the time of grant of the Option, then the Securities may be resold in certain limited circumstances subject to the provisions of Rule 144, which requires the resale to occur not less than one (1) year after the later
of the date the Securities were sold by the Company or the date the Securities were sold by an affiliate of the Company, within the meaning of Rule 144; and, in the case of acquisition of the Securities by an affiliate, or by a non-affiliate
who subsequently holds the Securities less than two (2) years, the satisfaction of the conditions set forth in sections (1), (2), (3) and (4) of the paragraph immediately above. 

(d) Optionee further understands that in the event all of the applicable requirements of Rule 701 or 144 are not
satisfied, registration under the Securities Act, compliance with Regulation A, or some other registration exemption will be required; and that, notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and
Exchange Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to Rules 144 or 701 will have a substantial burden of proof in establishing
that an exemption from registration is available for such offers or sales, and that such persons and their respective brokers who participate in such transactions do so at their own risk. Optionee understands that no assurances can be given that any
such other registration exemption will be available in such event. 
  

			
	 Signature of Optionee:

	
	  

		
	 Date:
	 	  

  
 -2-

 EXHIBIT C-1 

AMBARELLA, INC. 
 2004 STOCK PLAN 
 RESTRICTED STOCK PURCHASE AGREEMENT 

THIS RESTRICTED STOCK AWARD AGREEMENT (the “Agreement”) is made between
                     (the “Purchaser”) and Ambarella, Inc. (the “Company”) or its assignees of rights hereunder as of
                ,     . 
 Unless otherwise defined herein, the terms defined in the 2004 Stock Plan shall have the same defined meanings in this Agreement. 
 RECITALS 
 A. Pursuant to the exercise of the option
(grant number             ) granted to Purchaser under the Plan and pursuant to the Option Agreement (the “Option Agreement”) dated
                ,      by and between the Company and Purchaser with respect to such grant (the “Option”), which Plan and
Option Agreement are hereby incorporated by reference, Purchaser has elected to purchase                      of those Ordinary Shares which
have not become vested under the vesting schedule set forth in the Option Agreement (“Unvested Shares”). The Unvested Shares and the shares subject to the Option Agreement, which have become vested are sometimes collectively referred to
herein as the “Shares.” 
 B. As required by the Option Agreement, as a condition to Purchaser’s
election to exercise the option, Purchaser must execute this Agreement, which sets forth the rights and obligations of the parties with respect to Shares acquired upon exercise of the Option. 

1. Repurchase Option. 
 (a) If Purchaser’s status as a Service Provider is terminated for any reason, including for death and Disability, the Company shall have the right and option for ninety (90) days from such date
to purchase from Purchaser, or Purchaser’s personal representative, as the case may be, all of the Purchaser’s Unvested Shares as of the date of such termination at the price paid by the Purchaser for such Shares (the “Repurchase
Option”). 
 (b) Upon the occurrence of such termination, the Company may exercise its Repurchase Option by
delivering personally or by registered mail, to Purchaser (or his or her transferee or legal representative, as the case may be) with a copy to the escrow agent described in Section 2 below, a notice in writing indicating the Company’s
intention to exercise the Repurchase Option AND, at the Company’s option, (i) by delivering to the Purchaser (or the Purchaser’s transferee or legal representative) a check in the amount of the aggregate repurchase price, or
(ii) by the Company canceling an amount of the Purchaser’s indebtedness to the Company equal to the aggregate repurchase price, or (iii) by a combination of (i) and (ii) so that the combined payment and cancellation of
indebtedness equals such aggregate repurchase price. Upon delivery of such notice and payment of the aggregate repurchase price in any of the ways described above, the Company shall become the legal and beneficial owner of the Unvested Shares being
repurchased and the 

 
rights and interests therein or relating thereto, and the Company shall have the right to retain and transfer to its own name the number of Unvested Shares being repurchased by the Company.

 (c) Whenever the Company shall have the right to repurchase Unvested Shares hereunder, the Company may
designate and assign one or more employees, officers, directors or shareholders of the Company or other persons or organizations to exercise all or a part of the Company’s Repurchase Option under this Agreement and purchase all or a part of
such Unvested Shares. 
 (d) If the Company does not elect to exercise the Repurchase Option conferred above by
giving the requisite notice within ninety (90) days following the termination, the Repurchase Option shall terminate. 
 (e) The Repurchase Option shall terminate in accordance with the vesting schedule contained in Purchaser’s Option Agreement. 

2. Transferability of the Shares; Escrow. 

(a) Purchaser hereby authorizes and directs the Secretary of the Company, or such other person designated by the Company,
to transfer the Unvested Shares as to which the Repurchase Option has been exercised from Purchaser to the Company. 
 (b) To insure the availability for delivery of Purchaser’s Unvested Shares upon repurchase by the Company pursuant to the Repurchase Option under Section 1, Purchaser hereby appoints the
Secretary, or any other person designated by the Company as escrow agent (the “Escrow Agent”), as its attorney-in-fact to sell, assign and transfer unto the Company, such Unvested Shares, if any, repurchased by the Company pursuant to the
Repurchase Option and shall, upon execution of this Agreement, deliver and deposit with the Escrow Agent, the share certificates representing the Unvested Shares, together with the stock assignment duly endorsed in blank, attached hereto as
Exhibit C-2. The Unvested Shares and stock assignment shall be held by the Escrow Agent in escrow, pursuant to the Joint Escrow Instructions of the Company and Purchaser attached as Exhibit C-3 hereto, until the Company exercises its
Repurchase Option, until such Unvested Shares are vested, or until such time as this Agreement no longer is in effect. Upon vesting of the Unvested Shares, the Escrow Agent shall promptly deliver to the Purchaser the certificate or certificates
representing such Shares in the Escrow Agent’s possession belonging to the Purchaser, and the Escrow Agent shall be discharged of all further obligations hereunder; provided, however, that the Escrow Agent shall nevertheless retain such
certificate or certificates as Escrow Agent if so required pursuant to other restrictions imposed pursuant to this Agreement. 
 (c) Neither the Company nor the Escrow Agent shall be liable for any act it may do or omit to do with respect to holding the Shares in escrow and while acting in good faith and in the exercise of its
judgment. 
 (d) Transfer or sale of the Shares is subject to restrictions on transfer imposed by any applicable
state and federal securities laws. Any transferee shall hold such Shares subject to all the provisions hereof and the Exercise Notice executed by the Purchaser with respect to any Unvested Shares purchased by Purchaser and shall acknowledge the same
by signing a copy of this Agreement. 
 3. Ownership, Voting Rights, Duties. This Agreement shall not
affect in any way the ownership, voting rights or other rights or duties of Purchaser, except as specifically provided herein. 

  
 -2-

 4. Legends. The share certificate evidencing the Shares issued
hereunder shall be endorsed with the following legend (in addition to any legend required under applicable federal and state securities laws): 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS UPON TRANSFER AND RIGHTS OF REPURCHASE AS SET FORTH IN AN AGREEMENT BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH
IS ON FILE WITH THE SECRETARY OF THE COMPANY. 
 5. Adjustment for Stock Split. All references to the
number of Shares and the purchase price of the Shares in this Agreement shall be appropriately adjusted to reflect any stock split, stock dividend or other change in the Shares, which may be made by the Company pursuant to Section 13 of the
Plan after the date of this Agreement. 
 6. Notices. Notices required hereunder shall be given in person
or by registered mail to the address of Purchaser shown on the records of the Company, and to the Company at their respective principal executive offices. 
 7. Survival of Terms. This Agreement shall apply to and bind Purchaser and the Company and their respective permitted assignees and transferees, heirs, legatees, executors, administrators and legal
successors. 
 8. Section 83(b) Election. Purchaser hereby acknowledges that he or she has been
informed that, with respect to the exercise of an Option for Unvested Shares, an election (the “Election”) may be filed by the Purchaser with the Internal Revenue Service, within thirty (30) days of the purchase of the exercised
Shares, electing pursuant to Section 83(b) of the Code to be taxed currently on any difference between the purchase price of the exercised Shares and their Fair Market Value on the date of purchase. In the case of a Nonstatutory Stock Option,
this will result in the recognition of taxable income to the Purchaser on the date of exercise, measured by the excess, if any, of the Fair Market Value of the exercised Shares, at the time the Option is exercised over the purchase price for the
exercised Shares. Absent such an Election, taxable income will be measured and recognized by Purchaser at the time or times on which the Company’s Repurchase Option lapses. In the case of an Incentive Stock Option, such an Election will result
in a recognition of income to the Purchaser for alternative minimum tax purposes on the date of exercise, measured by the excess, if any, of the Fair Market Value of the exercised Shares, at the time the option is exercised, over the purchase price
for the exercised Shares. Absent such an Election, alternative minimum taxable income will be measured and recognized by Purchaser at the time or times on which the Company’s Repurchase Option lapses. 

This discussion is intended only as a summary of the general United States income tax laws that apply to exercising
Options as to Shares that have not yet vested and is accurate only as of the date this form Agreement was approved by the Board. The federal, state and local tax consequences to any particular taxpayer will depend upon his or her individual
circumstances. Purchaser is strongly encouraged to seek the advice of his or her own tax consultants in connection with the purchase of the Shares and the advisability of filing of the Election under Section 83(b) of the Code. A form of
Election under Section 83(b) is attached hereto as Exhibit C-4 for reference. 
 PURCHASER ACKNOWLEDGES THAT IT IS
PURCHASER’S SOLE RESPONSIBILITY AND NOT THE COMPANY’S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b) OF THE CODE, EVEN IF PURCHASER REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON PURCHASER’S BEHALF.

  
 -3-

 9. Representations. Purchaser has reviewed with his or her own tax
advisors the federal, state, local and foreign tax consequences of this investment and the transactions contemplated by this Agreement. Purchaser is relying solely on such advisors and not on any statements or representations of the Company or any
of its agents. Purchaser understands that he or she (and not the Company) shall be responsible for his or her own tax liability that may arise as a result of this investment or the transactions contemplated by this Agreement. 

10. Entire Agreement; Governing Law. The Plan and Option Agreement are incorporated herein by reference. The Plan,
the Option Agreement, the Exercise Notice, this Agreement, and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings
and agreements of the Company and Purchaser with respect to the subject matter hereof except as disclosed as “Other Agreements” in the Stock Option Grant Notice, and may not be modified adversely to the Purchaser’s interest except by
means of a writing signed by the Company and Purchaser. This Agreement is governed by the internal substantive laws but not the choice of law rules of California. 

Purchaser represents that he or she has read this Agreement and is familiar with its terms and provisions. Purchaser
hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Board upon any questions arising under this Agreement. 

  
 -4-

 IN WITNESS WHEREOF, this Agreement is deemed made as of the date first set
forth above. 
  

					
	 OPTIONEE
	  		  	 AMBARELLA, INC.

			
	  
	  		  	  

	 Signature
	  		  	 By

			
	  
	  		  	  

	 Print Name
	  		  	 Title

			
	  
	  		  	
	  
	  		  	
	 Residence Address
	  		  	

							
			
	 Dated:                     ,
        
	  		  	

  
 -5-

 EXHIBIT C-2 

ASSIGNMENT SEPARATE FROM CERTIFICATE 
 FOR VALUE RECEIVED I,                     , hereby sell, assign and transfer unto Ambarella, Inc.
                     (            ) Ordinary Shares of Ambarella, Inc.
standing in my name of the books of said corporation represented by Certificate No.      herewith and do hereby irrevocably constitute and
appoint                      to transfer the said stock on the books of the within named corporation with full power of substitution in
the premises. 
 This Stock Assignment may be used only in accordance with the Restricted Stock Purchase
Agreement between Ambarella, Inc. and the undersigned dated                 ,          (the “Agreement”).

  

													
	 Dated:
                    ,         
	  		  		  	 	Signature:	  	 	  

INSTRUCTIONS: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company
to exercise its “repurchase option,” as set forth in the Agreement, without requiring additional signatures on the part of the Purchaser. 

 EXHIBIT C-3 

JOINT ESCROW INSTRUCTIONS 
                 ,          

Dear                     :

 As Escrow Agent for both Ambarella, Inc. (the “Company”), and the undersigned purchaser of stock of
the Company (the “Purchaser”), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of that certain Restricted Stock Purchase Agreement (the “Agreement”) between the Company and the
undersigned, in accordance with the following instructions: 
 1. In the event the Company and/or any assignee
of the Company (referred to collectively for convenience herein as the “Company”) exercises the Company’s repurchase option set forth in the Agreement, the Company shall give to Purchaser and you a written notice specifying the number
of shares of stock to be purchased, the purchase price, and the time for a closing hereunder at the principal office of the Company. Purchaser and the Company hereby irrevocably authorize and direct you to close the transaction contemplated by such
notice in accordance with the terms of said notice. 
 2. At the closing, you are directed (a) to date the
stock assignments necessary for the transfer in question, (b) to fill in the number of shares being transferred, and (c) to deliver the stock assignments, together with the certificate evidencing the shares of stock to be transferred, to
the Company or its assignee, against the simultaneous delivery to you of the purchase price (by cash, a check, or some combination thereof) for the number of shares of stock being purchased pursuant to the exercise of the Company’s repurchase
option. 
 3. Purchaser irrevocably authorizes the Company to deposit with you any certificates evidencing
shares of stock to be held by you hereunder and any additions and substitutions to said shares as defined in the Agreement. Purchaser does hereby irrevocably constitute and appoint you as Purchaser’s attorney-in-fact and agent for the term of
this escrow to execute with respect to such securities all documents necessary or appropriate to make such securities negotiable and to complete any transaction herein contemplated, including but not limited to the filing with any applicable state
blue sky authority of any required applications for consent to, or notice of transfer of, the securities. Subject to the provisions of this paragraph 3, Purchaser shall exercise all rights and privileges of a shareholder of the Company while
the stock is held by you. 
 4. Upon written request of the Purchaser, but no more than once per calendar year,
unless the Company’s repurchase option has been exercised, you will deliver to Purchaser a certificate or certificates representing so many shares of stock as are not then subject to the Company’s repurchase option. Within one hundred and
twenty (120) days after cessation of Purchaser’s continuous employment by or services to the 

 
Company, or any parent or subsidiary of the Company, you will deliver to Purchaser a certificate or certificates representing the aggregate number of shares held or issued pursuant to the
Agreement and not purchased by the Company or its assignees pursuant to exercise of the Company’s repurchase option. 
 5. If at the time of termination of this escrow you should have in your possession any documents, securities, or other property belonging to Purchaser, you shall deliver all of the same to Purchaser and
shall be discharged of all further obligations hereunder. 
 6. Your duties hereunder may be altered, amended,
modified or revoked only by a writing signed by all of the parties hereto. 
 7. You shall be obligated only for
the performance of such duties as are specifically set forth herein and may rely and shall be protected in relying or refraining from acting on any instrument reasonably believed by you to be genuine and to have been signed or presented by the
proper party or parties. You shall not be personally liable for any act you may do or omit to do hereunder as Escrow Agent or as attorney-in-fact for Purchaser while acting in good faith, and any act done or omitted by you pursuant to the advice of
your own attorneys shall be conclusive evidence of such good faith. 
 8. You are hereby expressly authorized to
disregard any and all warnings given by any of the parties hereto or by any other person or corporation, excepting only orders or process of courts of law and are hereby expressly authorized to comply with and obey orders, judgments or decrees of
any court. In case you obey or comply with any such order, judgment or decree, you shall not be liable to any of the parties hereto or to any other person, firm or corporation by reason of such compliance, notwithstanding any such order, judgment or
decree being subsequently reversed, modified, annulled, set aside, vacated or found to have been entered without jurisdiction. 
 9. You shall not be liable in any respect on account of the identity, authorities or rights of the parties executing or delivering or purporting to execute or deliver the Agreement or any documents or
papers deposited or called for hereunder. 
 10. You shall not be liable for the outlawing of any rights under
the Statute of Limitations with respect to these Joint Escrow Instructions or any documents deposited with you. 

11. You shall be entitled to employ such legal counsel and other experts as you may deem necessary properly to advise you
in connection with your obligations hereunder, may rely upon the advice of such counsel, and may pay such counsel reasonable compensation therefor. 
 12. Your responsibilities as Escrow Agent hereunder shall terminate if you shall cease to be an officer or agent of the Company or if you shall resign by written notice to each party. In the event of any
such termination, the Company shall appoint a successor Escrow Agent. 
 13. If you reasonably require other or
further instruments in connection with these Joint Escrow Instructions or obligations in respect hereto, the necessary parties hereto shall join in furnishing such instruments. 

14. It is understood and agreed that should any dispute arise with respect to the delivery and/or ownership or right of
possession of the securities held by you hereunder, you are authorized and directed to retain in your possession without liability to anyone all or any part of said securities until such disputes shall have been settled either by mutual written
agreement of the parties concerned or by a final order, decree or 

  
 -2-

 
judgment of a court of competent jurisdiction after the time for appeal has expired and no appeal has been perfected, but you shall be under no duty whatsoever to institute or defend any such
proceedings. 
 15. Any notice required or permitted hereunder shall be given in writing and shall be deemed
effectively given upon personal delivery or upon deposit in the United States Post Office, by registered or certified mail with postage and fees prepaid, addressed to each of the other parties thereunto entitled at the following addresses or at such
other addresses as a party may designate by ten (10) days’ advance written notice to each of the other parties hereto. 
 16. By signing these Joint Escrow Instructions, you become a party hereto only for the purpose of said Joint Escrow Instructions; you do not become a party to the Agreement. 

17. This instrument shall be binding upon and inure to the benefit of the parties hereto, and their respective successors
and permitted assigns. 
 18. These Joint Escrow Instructions shall be governed by the internal substantive
laws, but not the choice of law rules, of California. 
  

					
	 PURCHASER
	 		  	 AMBARELLA, INC.

			
	  
	 		  	  

	 Signature
	 		  	 By

			
	  
	 		  	  

	 Print Name
	 		  	 Title

			
	  
	 		  	
	  
	 		  	
	 Residence Address
	 		  	
			
	 ESCROW AGENT
	 		  	
			
	  
	 		  	
	 Corporate Secretary
	 		  	

					
		
	 Dated:                     ,
        
	  	

  
 -3-

 EXHIBIT C-4 

ELECTION UNDER SECTION 83(b) 
 OF THE INTERNAL REVENUE CODE OF 1986 
 The undersigned taxpayer hereby
elects, pursuant to Sections 55 and 83(b) of the Internal Revenue Code of 1986, as amended, to include in taxpayer’s gross income or alternative minimum taxable income, as the case may be, for the current taxable year the amount of any
compensation taxable to taxpayer in connection with taxpayer’s receipt of the property described below. 
  

	1.	 The name, address, taxpayer identification number and taxable year of the undersigned are as follows: 

 

							
				
	 NAME:
	  	 TAXPAYER:
	  	 SPOUSE:
	  	
				
	 ADDRESS:
	  		  		  	
				
	 IDENTIFICATION NO.:
	  	 TAXPAYER:
	  	 SPOUSE:
	  	
				
	 TAXABLE YEAR:
	  		  		  	

  

	2.	 The property with respect to which the election is made is described as follows:
             Ordinary Shares (the “Shares”) of Ambarella, Inc. (the “Company”). 

 

	3.	 The date on which the property was transferred
is:                ,         . 

 

	4.	 The property is subject to the following restrictions: 

The Shares may not be transferred and are subject to forfeiture under the terms of an agreement between the taxpayer and
the Company. These restrictions lapse upon the satisfaction of certain conditions contained in such agreement. 
  

	5.	 The Fair Market Value at the time of transfer, determined without regard to any restriction other than a restriction which by its terms will never
lapse, of such property is: $        . 

  

	6.	 The amount (if any) paid for such property is: $        . 

The undersigned has submitted a copy of this statement to the person for whom the services were performed in connection with the
undersigned’s receipt of the above-described property. The transferee of such property is the person performing the services in connection with the transfer of said property. 

The undersigned understands that the foregoing election may not be revoked except with the consent of the Commissioner.

  

					
	 Dated:                     ,
        
	 		  	  

		 		  	 Taxpayer

 The
undersigned spouse of taxpayer joins in this election. 
  

					
	 Dated:                     ,
        
	 		  	  

		 		  	 Spouse of Taxpayer

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