Document:

EX-10.4

 Exhibit 10.4 

ZSCALER, INC. 
 2007
STOCK PLAN 
 (As Amended through September 22, 2017) 

1. Purposes of the Plan. The purposes of this Plan are to attract and retain the best available personnel for positions
of substantial responsibility, to provide additional incentive to Employees, Directors and Consultants and to promote the success of the Company’s business. The Plan permits the grant of Options and Stock Purchase Rights as the Administrator
may determine. 
 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 United States state corporate laws, United States federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws of any other country
or jurisdiction where Awards are granted under the Plan. 
 (c) “Award” means, individually or collectively, a grant under
the Plan of Options or Stock Purchase Rights. 
 (d) “Award Agreement” means the written or electronic agreement setting
forth the terms and provisions applicable to each Award granted under the Plan. The Award Agreement is subject to the terms and conditions of the Plan. 

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

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

(i) Change in Ownership of the Company. A change in the ownership of the Company which occurs on the date that any one person, or more
than one person acting as a group (“Person”), acquires ownership of the stock of the Company that, together with the stock held by such Person, constitutes more than fifty percent (50%) of the total voting power of the stock of the
Company, except that any change in the ownership of the stock of the Company as a result of a private financing of the Company that is approved by the Board will not be considered a Change in Control; or 

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

 (iii) Change in Ownership of a Substantial Portion of the Company’s Assets. A change
in the ownership of a substantial portion of the Company’s assets which occurs on the date that any Person acquires (or has acquired during the twelve (12) month period ending on the date of the most recent acquisition by such person or
persons) assets from the Company that have a total gross fair market value equal to or more than 50% of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions. For purposes of this
subsection (iii), gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined without regard to any liabilities associated with such assets. 

For purposes of this Section 2(f), persons will be considered to be acting as a group if they are owners of a corporation that enters
into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company. 
 Notwithstanding the
foregoing, a transaction shall not be deemed a Change in Control unless the transaction qualifies as a change in control event within the meaning of Section 409A of the Code, as it has been and may be amended from time to time, and any proposed
or final Treasury Regulations and Internal Revenue Service guidance that has been promulgated or may be promulgated thereunder from time to time. 

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. 

(g) “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. 
 (h) “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. 

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

(j) “Company” means Zscaler, Inc., a Delaware corporation. 

(k) “Consultant” means any person who is engaged by the Company or any Parent or Subsidiary to render consulting or advisory
services to such entity. 
 (l) “Director” means a member of the Board. 

(m) “Disability” means total and permanent disability as defined in Section 22(e)(3) of the Code. 

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

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

(p) “Exchange Program” means a program under which (i) outstanding 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 shall be determined by the Administrator in its sole discretion. 
 (q) “Fair Market Value” means, as of
any date, the value of Common Stock determined as follows: 
 (i) If the Common Stock is listed on any established stock exchange or a
national market system, including without limitation the Nasdaq Global 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 Common Stock is 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 Common Stock on the day of determination (or, if no bids and asks were reported on that date, as applicable, on the last trading date such bids and
asks were reported); or 
 (iii) In the absence of an established market for the Common Stock, the Fair Market Value thereof shall be
determined in good faith by the Administrator. 
 (r) “Incentive Stock Option” means an Option that by its terms qualifies
and is otherwise intended to qualify as an incentive stock option within the meaning of Section 422 of the Code and the regulations promulgated thereunder. 

(s) “Nonstatutory Stock Option” means an Option that by its terms does not qualify or is not intended to qualify as an
Incentive Stock Option. 
 (t) “Option” means a stock option granted pursuant to the Plan. 

(u) “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in Section 424(e) of
the Code. 
 (v) “Participant” means the holder of an outstanding Award. 

(w) “Plan” means this 2007 Stock Plan. 

  
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 (x) “Restricted Stock” means Shares issued pursuant to a Stock Purchase Right or
Shares of restricted stock issued pursuant to an Option. 
 (y) “Restricted Stock Purchase Agreement” means a written or
electronic agreement between the Company and the Participant 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) “Securities Act” means the Securities Act of 1933, as amended. 

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

(bb) “Share” means a share of the Common Stock, as adjusted in accordance with Section 11 below. 

(cc) “Stock Purchase Right” means a right to purchase Common Stock pursuant to Section 7 below. 

(dd) “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 11 of
the Plan, the maximum aggregate number of Shares that may be subject to Awards and sold under the Plan is 57,597,368 Shares. The Shares may be authorized but unissued, or reacquired Common Stock. 

If an Award 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 an Award, 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 11, the maximum number of Shares that may be issued upon the exercise of Incentive Stock Options shall equal the aggregate Share number
stated in 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 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; 

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

 (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 Award granted hereunder. Such terms and conditions include, but are not limited to, the
exercise price, the time or times when Awards may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, and any restriction or limitation regarding any Award or the Common Stock
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 modify or amend each Award (subject
to Section 19(c) of the Plan) including but not limited to the discretionary authority to extend the post-termination exercise period of Awards and to extend the maximum term of an Option (subject to Section 6(a) regarding Incentive Stock
Options); 
 (ix) to authorize any person to execute on behalf of the Company any instrument required to effect the grant of an Award
previously granted by the Administrator; and 
 (x) to construe and interpret the terms of the Plan and Awards 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 Participants. 
 5. Eligibility. Nonstatutory Stock Options and Stock Purchase Rights
may be granted to Service Providers. Incentive Stock Options may be granted only to Employees. 
 6. Stock Options. 

(a) Term of Option. The term of each Option shall be stated in the Award 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 a Participant 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 Award Agreement. 

  
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 (b) Option Exercise Price and Consideration. 

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

(i) Procedure for Exercise; Rights as a Stockholder. 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 Award 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 Award
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 Award Agreement and the Plan. Shares issued upon exercise of an Option shall be issued in the name of the Participant or, if requested by the Participant, in the name of the
Participant and his or her spouse. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a
stockholder 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 shall 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 11 of the Plan. 

  
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 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. 

(ii) Termination of Relationship as a Service Provider. If a Participant ceases to be a Service Provider, such Participant may
exercise his or her Option within thirty (30) days of termination, or such longer period of time as specified in the Award 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 Award Agreement). Unless the Administrator provides otherwise, if on the date of termination the Participant is not vested as to his or her entire Option, the Shares covered by the unvested portion of
the Option shall revert to the Plan. If, after termination, the Participant does not exercise his or her Option within the time specified by the Administrator, the Option shall terminate, and the Shares covered by such Option shall revert to the
Plan. 
 (iii) Disability of Participant. If a Participant ceases to be a Service Provider as a result of the Participant’s
Disability, the Participant may exercise his or her Option within six (6) months of termination, or such longer period of time as specified in the Award 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 Award Agreement). Unless the Administrator provides otherwise, if on the date of termination the Participant is not vested as to his or her entire Option, the Shares covered by
the unvested portion of the Option shall revert to the Plan. If, after termination, the Participant 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. 
 (iv) Death of Participant. If a Participant dies while a Service Provider, the Option may be exercised
within six (6) months following the Participant’s death, or such longer period of time as specified in the Award 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 Award Agreement) by the Participant’s designated beneficiary, provided such beneficiary has been designated prior to the Participant’s death in a form acceptable to the Administrator. If no such
beneficiary has been designated by the Participant, then such Option may be exercised by the personal representative of the Participant’s estate or by the person(s) to whom the Option is transferred pursuant to the Participant’s will or in
accordance with the laws of descent and distribution. If, at the time of death, the Participant 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. 

(v) Incentive Stock Option Limit. Each Option shall be designated in the Award 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 Participant during any
calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds one 

  
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hundred thousand dollars ($100,000), such Options shall be treated as Nonstatutory Stock Options. For purposes of this Section 6(c)(v), 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. 

7. 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 shall 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, and the time within which such person must accept such offer. 

(b) Repurchase Option. Unless the Administrator determines otherwise, the Restricted Stock Purchase Agreement shall grant the Company a
repurchase option according to the following terms: the repurchase price shall be at the original purchase price, provided that the right to repurchase must be exercised for cash or cancellation of any indebtedness of the purchaser to the Company
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). 

(c) Terms. The following terms shall apply to all Stock Purchase Rights granted under the Plan: 

(i) Stock Purchase Rights granted to any Service Provider shall have a purchase price that is not less than one hundred percent
(100%) of the Fair Market Value per Share on the date of grant or on the date of purchase; 
 (ii) The term of each Stock Purchase
Right shall be stated in the Restricted Stock Purchase Agreement; provided, however, that the term shall be no more than ten (10) years from the date of grant thereof. 

(d) 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. 
 (e) Rights as a Stockholder. Once the
Stock Purchase Right is exercised, the purchaser shall have rights equivalent to those of a stockholder and shall be a stockholder 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 11 of the Plan. 

8. Tax Withholding. Prior to the delivery of any Shares pursuant to an Award (or exercise thereof), the Company shall have the power
and the right to deduct or withhold, or require a Participant to remit to the Company, an amount sufficient to satisfy federal, state, local, foreign or other taxes (including the Participant’s FICA obligation) required to be withheld with
respect to such Award (or exercise thereof). The Administrator, in its sole discretion and pursuant to such procedures as it may specify from time to time, shall determine in what manner it shall allow a

  
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Participant to satisfy such tax withholding obligation and may permit the Participant to satisfy such tax withholding obligation, in whole or in part by one (1) or more of the following:
(a) paying cash (or by check), (b) electing to have the Company withhold otherwise deliverable Shares having a Fair Market Value equal to the minimum amount statutorily required to be withheld, or (c) selling a sufficient number of
such Shares otherwise deliverable to a Participant through such means as the Company may determine in its sole discretion (whether through a broker or otherwise) equal to the minimum amount statutorily required to be withheld. 

9. Limited Transferability of Awards. Unless determined otherwise by the Administrator, Awards 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 Participant, only by the Participant. If the Administrator in its sole
discretion makes an Award transferable, such Award may only be transferred (i) by will, (ii) by the laws of descent and distribution, or (iii) to family members (within the meaning of Rule 701 of the Securities Act) through gifts or
domestic relations orders, as permitted by Rule 701 of the Securities Act. 
 10. Leaves of Absence; Transfers. 

(a) Unless the Administrator provides otherwise, or except as otherwise required by Applicable Laws, vesting of Awards granted hereunder to
officers, Directors and Consultants shall be suspended during any unpaid leave of absence. 
 (b) A Service Provider shall not cease to be a
Service Provider in the case of (i) any leave of absence approved by the Company, or (ii) transfers between locations of the Company or between the Company, its Parent, any Subsidiary, or any successor. 

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

(a) Adjustments. In the event that any dividend or other distribution (whether in the form of cash, Shares, other securities, or other
property), recapitalization, stock split, reverse stock split, reorganization, merger, consolidation, split-up, spin-off, combination, repurchase, or exchange of Shares or other securities of the Company, or other change in the corporate structure
of the Company affecting the Shares occurs, the Administrator, in order to prevent diminution or enlargement of the benefits or potential benefits intended to be made available under the Plan, 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 Award; provided, however, that the Administrator shall make such adjustments to the extent required by Section 25102(o) of the California
Corporations Code. 

  
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 (b) Dissolution or Liquidation. In the event of the proposed dissolution or liquidation of
the Company, the Administrator shall notify each Participant as soon as practicable prior to the effective date of such proposed transaction. To the extent it has not been previously exercised, an Award shall terminate immediately prior to the
consummation of such proposed action. 
 (c) Merger or Change in Control. In the event of a merger or Change in Control, each
outstanding Award shall be treated as the Administrator determines, including, without limitation, that each Award be assumed or an equivalent award substituted by the successor corporation or a Parent or Subsidiary of the successor corporation. The
Administrator shall not be required to treat all Awards similarly in the transaction. 
 Notwithstanding the foregoing, in the event that
the successor corporation does not assume or substitute for the Award, the Participant shall fully vest in and have the right to exercise his or her outstanding Awards, including Shares as to which such Award would not otherwise be vested or
exercisable, and restrictions on all of the Participant’s Stock Purchase Rights and Restricted Stock shall lapse. In addition, if an Award is not assumed or substituted in the event of a merger or Change in Control, the Administrator shall
notify the Participant in writing or electronically that the Award shall be fully vested and exercisable for a period of time determined by the Administrator in its sole discretion, and any Award not assumed or substituted for shall terminate upon
the expiration of such period for no consideration, unless otherwise determined by the Administrator. 
 For the purposes of this
Section 11(c), the Award 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 subject to the Award immediately prior to the merger or Change in
Control, the consideration (whether stock, cash, or other securities or property) received in the merger or Change in Control by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a
choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the merger or Change in Control is not solely common stock of the successor
corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of the Award, for each Share subject to the Award, to be solely common stock of the
successor corporation or its Parent equal in fair market value to the per share consideration received by holders of common stock in the merger or Change in Control. 

12. Time of Granting Awards. The date of grant of an Award shall, for all purposes, be the date on which the
Administrator makes the determination granting such Award, or such later date as is determined by the Administrator. Notice of the determination shall be given to each Service Provider to whom an Award is so granted within a reasonable time after
the date of such grant. 
 13. No Effect on Employment or Service. Neither the Plan nor any Award shall confer upon any participant
any right with respect to continuing the Participant’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. 

  
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 14. Conditions Upon Issuance of Shares. 

(a) Legal Compliance. Shares shall not be issued pursuant to the exercise of an Award unless the exercise of such Award 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 Award, the Administrator may in its discretion require the person
exercising such Award to represent and warrant at the time of any such exercise that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares. 

15. 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. 
 16. 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. 
 17.
Stockholder Approval. The Plan shall be subject to approval by the stockholders of the Company within twelve (12) months after the date the Plan is adopted. Such stockholder approval shall be obtained in the degree and manner required
under Applicable Laws. 
 18. Term of Plan. Subject to stockholder approval in accordance with Section 17, the Plan
shall become effective upon its adoption by the Board. Unless sooner terminated under Section 19, it shall continue in effect for a term of ten (10) years from the later of (a) the effective date of the Plan, or (b) the earlier
of the most recent Board or stockholder approval of an increase in the number of Shares reserved for issuance under the Plan. 
 19.
Amendment and Termination of the Plan. 
 (a) Amendment and Termination. The Board may at any time
amend, alter, suspend or terminate the Plan. 
 (b) Stockholder Approval. The Board shall obtain stockholder approval of any Plan
amendment to the extent necessary and desirable to comply with Applicable Laws. 
 (c)
Effect of Amendment or Termination. No amendment, alteration, suspension or termination of the Plan shall impair the rights of any Participant, unless mutually agreed otherwise between the Participant and the
Administrator, which agreement must be in writing (which may include e-mail) and signed by the Participant 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. 

  
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 APPENDIX A 

ZSCALER, INC. 
 2007 STOCK
PLAN 
 ADDITIONAL TERMS AND CONDITIONS FOR
EMPLOYEES RESIDENT IN INDIA 
 The additional terms and conditions detailed
below are to be read in conjunction with the Plan and the Award Agreement. Any terms and provisions not specifically defined below for Employees subject to the laws of India will have the same meaning as defined in the Plan and the Award Agreement.

 1. Definitions. Notwithstanding the provisions of the Plan, the following definitions will have the meaning given to them for
Options granted to employees of the Company resident in India. 
 (a) “FEMA” means the Foreign Exchange Management Act,
1999 of India, the rules and regulations notified thereunder and any amendments thereto. The restrictions under FEMA, as referred to in this Appendix A and as existing on the effective date of this Appendix A, will be read to include the amendments
made to FEMA subsequent to the effective date of this Appendix A and will be deemed to have always included such amendments. 
 (b)
“Indian Subsidiary” for the purpose of this Appendix A, means SafeChannel Softech Pvt Ltd. for so long as the holding-subsidiary relationship exists between Zscaler, Inc. and SafeChannel Softech Pvt Ltd., as per the provisions of
section 4 of the Indian Companies Act, 1956. 
 (c) “Option” means a stock option granted pursuant to the Plan, but shall
not include Incentive Stock Options, as such term is understood under Applicable Laws of the United States. 
 2. Purpose. The
purpose of this Appendix A is to establish certain rules applicable to Shares which may be granted under the Plan from time to time to Employees of the Indian Subsidiary, who are residents of the Republic of India, in compliance with the exchange
control, securities and other Applicable Laws currently in force in India. Except as otherwise provided by this Appendix A, all Shares granted pursuant to this Appendix A shall be governed by the terms of the Plan. In the event of a conflict between
the provisions of the Plan and the provisions of this Appendix A, the provisions of this Appendix A shall prevail. 
 3.
Consideration. Except as otherwise provided below, payment of the exercise price for the number of Shares being purchased pursuant to any Option will be made (i) in cash, by check or cash equivalent, (ii) pursuant to a cashless
exercise program implemented by the Company in connection with the Plan, (iii) by such other consideration as may be approved by the Administrator from time to time to the extent permitted by Applicable Law, or (iv) by any combination
thereof. Notwithstanding the foregoing, the above procedures will be subject to compliance with the applicable regulations under FEMA. 

 4. Eligibility. Notwithstanding the provisions of the Plan, Options in the form of Shares
granted to residents of India may only be granted to Employees who are, on the date of grant, “resident” in India in accordance with the provisions of FEMA and satisfy the provisions in Section 5 of the Plan regarding eligibility, as
applicable. Consultants resident in India will not be eligible to receive Options under this Appendix A. 
 Options may be granted to
Employees in accordance with the terms of the Plan and this Appendix A to the Plan as the Administrator deems appropriate. In determining which Employees may be granted Options and for determining the quantum of Options to be granted, the
Administrator will take into account whether Options will provide additional incentive to Employees, whether such Options will promote the success of the Company’s business, the potential for future contribution to the Company and the Indian
Subsidiary, integrity, number of employment years and any other factor(s) as deemed appropriate by the Administrator. 
 5. Term of
Option. Notwithstanding the provisions of the Plan, the term of each Option shall be stated in the Award Agreement; provided, however, that the term shall be no more than ten (10) years from the date of grant thereof. 

6. Exercise of Option. Notwithstanding the provisions of the Plan, the Participant may exercise an Option following his or her
termination as a Service Provider until the earliest of: (i) the seventh (7th) anniversary of the date on which the Participant ceases to be a Service Provider; (ii) the immediately
before the effective date of an initial public offering of the Common Stock (“IPO”); (iii) immediately before the closing of a Change in Control; and (iv) the maximum term of the Option set forth in the Award Agreement in
accordance with Section 5 of this Appendix A (the earliest such date being, a “Compulsory Exercise Date”). 
 7.
Compulsory Exercise. Upon the occurrence of the Compulsory Exercise Date, the Company shall send a notice that the Compulsory Exercise Date has occurred (the “Compulsory Notice”) to the Participant’s address as set forth in the
books and records of the Company. The Participant shall have the duty to keep the Company apprised of any changes in the Participant’s address. The Company shall have no duty to confirm any Participant’s address, nor shall the Company have
any liability if the Participant’s address on the books and records of the Company is not correct (so long as the address was an address used by the Participant since the granting of the Option). 

The Participant shall have a period of time as the Administrator shall determine in its discretion from the date the Compulsory Notice is sent
(the “Compulsory Election Period”) by the Company make an election with respect to his or her Option. The Participant may: 1) exercise the Option for cash, and pay any fringe benefit tax (“FBT”) liability discussed in
Section 10 of this Appendix A and the Award Agreement in cash or in stock; 2) exercise the Option on a cashless basis (including by way of net exercise) and pay any FBT liability in cash or in Shares; or 3) elect not to exercise the Option, in
which case the Option shall remain outstanding and subject to terms and conditions set forth in the Award Agreement. 

  
 -2- 

 If the Company does not receive any response to the Compulsory Notice from the Participant during
the Compulsory Election Period, the Company shall automatically perform a cashless exercise on behalf of the Participant and shall pay any FBT liability out of Shares issued (the “Compulsory Shares”). Notwithstanding the foregoing
sentence, in the event that the (A) FBT liability with respect to any Option is determined by the Administrator to be greater than the difference between the (i) Fair Market Value of the vested portion of the Shares subject to the Option
and the (ii) total exercise price of the vested portion of the Shares subject to the Option (the “spread”) and (B) the Company has not received any response from Participant following the Compulsory Election Period, the vested
portion of the Option shall terminate and all Shares thereunder shall be forfeited to the Company. In the event of the Company’s automatic cashless exercise following the Compulsory Election Period, the Company shall hold the Compulsory Shares
for the benefit of the Participant for a period of five (5) years from the date of the cashless exercise. If the Compulsory Shares are not claimed by the Participant within such five (5) year period, such Compulsory Shares shall be deemed
abandoned and shall be forfeited to the Company. 
 8. Standard Form of Award Agreement. Unless otherwise provided by the
Administrator at the time the Option is granted, an Option shall comply with and be subject to the terms and conditions set forth in the Award Agreement approved by the Administrator concurrently and to be used in conjunction with the adoption of
this Appendix A. 
 9. Currency Exchange Rates. Except as otherwise determined by the Administrator, all monetary values under this
Appendix A including, without limitation, the Fair Market Value per Share and the exercise price shall be stated in United States Dollars. Any changes or fluctuations in the exchange rate at which amounts paid by a Participant in currencies other
than United States Dollars are converted into United States Dollars or amounts paid to a Participant in United States Dollars are converted into currencies other than United States Dollars shall be borne solely by the Participant. 

10. Recovery of Fringe Benefit from the Participant. The Administrator shall have the right to recover from a Participant the FBT
whether paid or payable by the Company or the Indian Subsidiary arising on account of allotment of Shares upon the exercise of Options by a Participant. 

11. Compliance With Law. In addition to the requirements set forth in the Plan, the grant of Shares pursuant to this Appendix A and the
issuance of Shares upon exercise of the right to purchase shall be subject to compliance with all applicable requirements of the law of the Republic of India. 

  
 -3- 

 ZSCALER, INC. 

2007 STOCK PLAN 
 STOCK
OPTION AGREEMENT 
 Unless otherwise defined herein, the terms defined in the 2007 Stock Plan (the “Plan”) shall have the same
defined meanings in this Stock Option Agreement (the “Option Agreement”). 
  

	I.	NOTICE OF STOCK OPTION GRANT 

 Name: 

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

 

					
	 Date of Grant:
	 	  
	  	
			
	 Vesting Commencement Date:
	 	  
	  	
			
	 Exercise Price per Share:
	 	 $
	  	
			
	 Total Number of Shares Granted:
	 	  
	  	
			
	 Total Exercise Price:
	 	 $
	  	
			
	 Type of Option:
	 	           Incentive Stock Option	  	
			
		 	           Nonstatutory Stock Option	  	
			
	 Term/Expiration Date:
	 	  
	  	

 Vesting Schedule: 

This Option shall be exercisable, in whole or in part, according to the following vesting schedule: 

[insert vesting schedule] 

Termination Period: 

This Option shall be exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is due
to Participant’s death or Disability, in which case this Option shall be exercisable for one (1) year after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may this Option be exercised after
the Term/Expiration Date as provided above and may be subject to earlier termination as provided in Section 11(c) of the Plan. 

	II.	AGREEMENT 

 1. Grant of Option. The Administrator of the Company hereby
grants to the Participant named in the Notice of Stock Option Grant in Part I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the
exercise price per Share set forth in the Notice of Stock Option Grant (the “Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 19(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 Notice of Stock Option Grant as an Incentive Stock Option (“ISO”), this Option is intended to qualify as an
Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of Code Section 422(d), this Option shall be treated as a Nonstatutory Stock Option (“NSO”). 

2. Exercise of Option. 

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

3. Participant’s Representations. In the event the Shares have not been registered under the Securities Act of 1933, as amended,
at the time this Option is exercised, Participant shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment Representation Statement in the form attached
hereto as Exhibit B. 
 4. Lock-Up Period. Participant hereby agrees that Participant shall not offer, pledge, sell,
contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or

  
 -2- 

 
indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic
consequences of ownership of any Common Stock (or other securities) of the Company held by Participant (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other
securities) of the Company not to exceed one hundred 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). 
 Participant agrees to execute and
deliver such other agreements as may be reasonably requested by the Company or the underwriter which are consistent with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the
representative of the underwriters of Common Stock (or other securities) of the Company, Participant shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection
with the completion of any public offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations described in this Section 4 shall not apply to a registration relating solely to
employee benefit plans on Form S-1 or Form S-8 or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be promulgated in the future. The
Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred eighty (180) day (or other) period. Participant agrees that
any transferee of the Option or shares acquired pursuant to the Option shall be bound by this Section 4. 
 5. Method of
Payment. Payment of the aggregate Exercise Price shall be by any of the following, or a combination thereof, at the election of the Participant: 

(a) cash; 
 (b) check; 

(c) consideration received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or 

(d) surrender of other Shares which (i) if acquired either directly or indirectly from the Company, have been owned by Participant for at
least the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair Market Value on the date of exercise, and (iii) 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. 

  
 -3- 

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

7. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than by will or by the laws of descent or
distribution and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of Participant. 

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

(a) Tax Withholding. Participant agrees to make appropriate arrangements with the Company (or the Parent or Subsidiary employing or
retaining Participant) for the satisfaction of all Federal, state, local and foreign income and employment tax withholding requirements applicable to the Option exercise. Participant acknowledges and agrees that the Company may refuse to honor the
exercise and refuse to deliver the Shares if such withholding amounts are not delivered at the time of exercise. 
 (b) Notice of
Disqualifying Disposition of ISO Shares. If the Option granted to Participant herein is an ISO, and if Participant sells or otherwise disposes of any of the Shares acquired pursuant to the ISO on or before the later of (i) the date two
(2) years after the Date of Grant, or (ii) the date one (1) year after the date of exercise, Participant shall immediately notify the Company in writing of such disposition. Participant agrees that Participant may be subject to income
tax withholding by the Company on the compensation income recognized by Participant. 
 (c) Code Section 409A. Under Code
Section 409A, an Option that vests after December 31, 2004 that was granted with a per Share exercise price that is determined by the Internal Revenue Service (the “IRS”) to be less than the Fair Market Value of a Share on the
date of grant (a “discount option”) may be considered “deferred compensation.” An Option that is a “discount option” may result in (i) income recognition by Participant prior to the exercise of the Option,
(ii) an additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest charges. The “discount option” may also result in additional state income, penalty and interest tax to the Participant.
Participant acknowledges that the Company cannot and has not guaranteed that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair Market Value of a Share on the date of grant in a later examination.
Participant agrees that if the IRS determines that the Option was granted with a per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant shall be solely responsible for Participant’s costs
related to such a determination. 
 10. Entire Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and
this Option Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject matter
hereof, and may not be modified adversely to Participant’s interest except by means of a writing signed by the Company and Participant. This Agreement is governed by the internal substantive laws but not the choice of law rules of Delaware.

  
 -4- 

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

 

					
	PARTICIPANT 	 		 	ZSCALER, INC.
			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Print Name
			
	  
	 		 	  

	  
  
	 		 	Title
	Residence Address	 		 	

  
 -5- 

 EXHIBIT A 

2007 STOCK PLAN 
 EXERCISE
NOTICE 
 Zscaler, Inc. 
 1. Exercise
of Option. Effective as of today,                         ,
            , the undersigned (“Participant”) hereby elects to exercise Participant’s option (the “Option”) to purchase
                         shares of the Common Stock (the “Shares”) of Zscaler, Inc. (the “Company”)
under and pursuant to the 2007 Stock Plan (the “Plan”) and the Stock Option Agreement dated
                        ,              (the
“Option Agreement”). 
 2. Delivery of Payment. Participant herewith delivers to the Company the full purchase price of the
Shares, as set forth in the Option Agreement, and any and all withholding taxes due in connection with the exercise of the Option. 
 3.
Representations of Participant. Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and conditions. 

4. Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a
duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares shall
be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date is prior to the date of issuance except as
provided in Section 11 of the Plan. 
 5. Company’s Right of First Refusal. Before any Shares held by Participant or any
transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its assignee(s) shall have a right of first refusal to purchase
the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 
 (a) Notice of
Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each
proposed purchaser or other transferee (“Proposed Transferee”); (iii) the number of Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder proposes to
transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the Offered Price to the Company or its assignee(s). 

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

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

  
 -2- 

 7. Restrictive Legends and Stop-Transfer Orders. 

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

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED, SOLD
OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE
THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL HELD BY
THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST
REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR
A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF BY
THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 
 (b) Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers
its own securities, it may make appropriate notations to the same effect in its own records. 
 (c) Refusal to Transfer. The
Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of 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. 

  
 -3- 

 8. Successors and Assigns. The Company may assign any of its rights under this Exercise
Notice to single or multiple assignees, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth, this Exercise Notice shall be binding upon
Participant and his or her heirs, executors, administrators, successors and assigns. 
 9. Interpretation. Any dispute regarding the
interpretation of this Exercise Notice shall be submitted by Participant or by the Company forthwith to the Administrator which shall review such dispute at its next regular meeting. The resolution of such a dispute by the Administrator shall be
final and binding on all parties. 
 10. Governing Law; Severability. This Exercise Notice is governed by the internal substantive
laws but not the choice of law rules, of Delaware. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in full force and effect.

 11. Entire Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan, the
Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and
Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 

 

							
	Submitted by:	 		  	Accepted by:	  	
				
	PARTICIPANT	 		  	ZSCALER, INC.	  	
				
	  
	 		  	  
	  	
	Signature	 		  	By	  	
				
	  
	 		  	  
	  	
	Print Name	 		  	Print Name	  	
				
		 		  	  
	  	
		 		  	Title	  	
				
	Address:	 		  	Address:	  	
				
	  
	 		  		  	
				
	  
	 		  		  	
		 		  	  
	  	
		 		  	Date Received	  	

  
 -4- 

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
			
	 PARTICIPANT
	  	:	  	
			
	 COMPANY
	  	:	  	ZSCALER, INC.
			
	 SECURITY
	  	:	  	COMMON STOCK
			
	 AMOUNT
	  	:	  	
			
	 DATE
	  	:	  	

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

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

(c) Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in
substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the
issuer qualifies under Rule 701 at the time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such 

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

	
	PARTICIPANT
	
	   

	Signature
	
	   

	Print Name
	
	   

	Date

  
 -2- 

 ZSCALER, INC. 

2007 STOCK PLAN 
 STOCK
OPTION AGREEMENT 
 FOR EMPLOYEES RESIDENT IN INDIA 

Unless otherwise defined herein, the terms defined in the 2007 Stock Plan and Appendix A thereto (the “Plan”) shall have the same
defined meanings in this Stock Option Agreement (the “Option Agreement”). 
  

	I.	NOTICE OF STOCK OPTION GRANT 

         Name:
                                         
                            

        Address:
                                         
                        
  

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

 

			
	 Date of Grant:
	  	                                     
                                         
          
		
	Vesting Commencement Date:	  	                                     
                                         
          
		
	Exercise Price per Share:	  	                                     
                                         
          
		
	Total Number of Shares Granted:	  	                                     
                                         
          
		
	Total Exercise Price:	  	                                     
                                         
          
		
	Type of Option:	  	             Incentive Stock Option
		
		  	             Nonstatutory Stock Option
		
	Term/Expiration Date:	  	                                     
                                         
          

 Vesting Schedule: This Option shall be exercisable, in whole or in part, according to the following
vesting schedule: 
 [insert vesting schedule] 

Termination Period: 

This Option shall be exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is due
to Participant’s death or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may this Option be exercised
after the Term/Expiration Date as provided above and may be subject to earlier termination as provided in Section 11(c) of the Plan. 

	II.	AGREEMENT 

 1. Grant of Option. The Administrator of the Company hereby
grants to the Participant named in the Notice of Stock Option Grant in Part I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the
exercise price per Share set forth in the Notice of Stock Option Grant (the “Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 19(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. 

2. Exercise of Option. 

(a) Right to Exercise. This Option shall be exercisable during its term in accordance with the Vesting Schedule set out in the Notice
of Stock Option Grant and with the applicable provisions of the Plan and this Option Agreement. 
 (b) Compulsory Exercise. Upon the
occurrence of the Compulsory Exercise Date, the Company shall send a notice that the Compulsory Exercise Date has occurred (the “Compulsory Notice”) to the Participant’s address as set forth in the books and records of the Company.
The Participant shall have the duty to keep the Company apprised of any changes in the Participant’s address. The Company shall have no duty to confirm any Participant’s address, nor shall the Company have any liability if the
Participant’s address on the books and records of the Company is not correct (so long as the address was an address used by the Participant since the granting of the Award). 

The Participant shall have such period of time as is determined by the Administrator from the date the Compulsory Notice is sent (the
“Compulsory Election Period”) by the Company to make an election with respect to this Option. The Participant may: 1) exercise the Option for cash, and pay any fringe benefit tax (“FBT”) liability, discussed in Section 9
below, in cash or in Shares; 2) exercise the Option on a cashless basis (including by way of net exercise) and pay any FBT liability in cash or in Shares; or 3) elect not to exercise the Option, in which case this Option shall remain outstanding and
subject to the terms and conditions of this Option Agreement. 
 If the Company does not receive any response to the Compulsory Notice from
the Participant during the Compulsory Election Period, the Company shall automatically perform a cashless exercise on behalf of the Participant and shall pay any FBT liability out of Shares issued (the “Compulsory Shares”). Notwithstanding
the foregoing sentence, in the event that the (A) FBT liability with respect to any Option is determined by the Administrator to be greater than the difference between the (i) Fair Market Value of the vested portion of the Shares subject
to the Option and the (ii) total exercise price of the vested portion of the Shares subject to the Option (the “spread”) and (B) the Company has not received any response from Participant following the Compulsory Election Period,
the vested portion of the Option shall terminate and all Shares thereunder shall be forfeited to the Company. In the event of the Company’s automatic cashless exercise following the Compulsory Election Period, the Company shall hold the
Compulsory Shares 

  
 -2- 

 
for the benefit of the Participant for a period of five (5) years from the date of the cashless exercise. If the Compulsory Shares are not claimed by the Participant within such five
(5) year period, such Compulsory Shares shall be deemed abandoned and shall be forfeited to the Company. 
 (c) 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 Participant on the date on which the Option is exercised with respect to such Shares.

 3. Participant’s Representations. In the event the Shares have not been registered under the Securities Act of 1933, as
amended, at the time this Option is exercised, Participant shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment Representation Statement in the form
attached hereto as Exhibit B. 
 4. Lock-Up Period. Participant hereby agrees that Participant shall not offer, pledge,
sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any Common Stock (or other
securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other securities) of the Company held by
Participant (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred 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). 
 Participant agrees to execute and deliver such other agreements as may be reasonably requested by the Company or the
underwriter which are consistent with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative of the underwriters of Common Stock (or other securities) of the Company,
Participant shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of any public offering of the Company’s securities pursuant to a
registration statement filed under the Securities Act. The obligations described in this Section 4 shall not apply to a registration relating solely to employee 

  
 -3- 

 
benefit plans on Form S-1 or Form S-8 or similar forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms
that may be promulgated in the future. The Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred eighty (180) day
(or other) period. Participant agrees that any transferee of the Option or shares acquired pursuant to the Option shall be bound by this Section 4. 

5. Method of Payment. Subject to Section 2(b), payment of the aggregate Exercise Price shall be by any of the following, or a
combination thereof, at the election of the Participant: 
 (a) cash; 

(b) check; 
 (c) consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan, including, without limitation, by way of a net exercise as the Administrator determines and if permitted by Applicable Laws; or 

(d) surrender of other Shares which (i) if acquired either directly or indirectly from the Company, have been owned by Participant for at
least the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair Market Value on the date of exercise, and (iii) must be owned free and clear of any liens, claims, encumbrances or
security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse accounting consequences to the Company. 

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

7. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than by will or by the laws of descent or
distribution and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of Participant. 

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

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

  
 -4- 

 (b) Fringe Benefit Tax. Subject to Section 2(b), and except as otherwise determined
by the Administrator, Participant agrees to reimburse or pay the Company (or its Indian Subsidiary, as directed by the Indian Subsidiary) in full, any liability that the Company or its Indian Subsidiary incurs towards any FBT, social tax, or other
Indian tax paid or payable in respect of the grant, vesting, delivery, or exercise of the Option or the underlying Shares, within the time and in the manner prescribed by the Company or its Indian Subsidiary. The Administrator may in its sole
discretion determine whether the FBT with respect to the Option or its underlying Shares will be paid by selling a portion of vested Shares or by direct payment from the Participant to the Company, by withholding a number of Shares upon exercise
with a Fair Market Value equal to the FBT liability, some other method, or by some combination thereof. Participant agrees to execute any additional documents requested by the Company or its Indian Subsidiary for the reimbursement of such taxes to
the Company. 
 The Participant grants to the Company and its Indian Subsidiary the irrevocable authority, as agents of Participant and on
his or her behalf, to sell, retain or procure the sale of sufficient Shares subject to the Option so that the net proceeds receivable by the Company or its Indian Subsidiary are as far as possible equal to but not less than the amount of any tax the
Participant is liable for (including FBT reimbursement obligations pursuant to the preceding paragraph) and the Company or its Indian Subsidiary shall remit any balance to Participant. 

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

  
 -5- 

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

 

							
				
	PARTICIPANT	 		 	ZSCALER, INC.	  	
				
	  
	 		 	  
	  	
	Signature	 		 		  	
				
	  
	 		 		  	
	Print Name	 		 		  	
		 		 	  
	  	
		 		 	Print Name	  	
				
		 		 	  
	  	
	  
	 		 	Title	  	
	Residence Address	 		 		  	

  
 -6- 

 EXHIBIT A 

2007 STOCK PLAN 
 EXERCISE
NOTICE 
 Zscaler, Inc. 
 Attention: Chief Financial
Officer 
 1. Exercise of Option. Effective as of today,
                        ,             , the undersigned
(“Participant”) hereby elects to exercise Participant’s option (the “Option”) to purchase
                         shares of the Common Stock (the “Shares”) of Zscaler, Inc. (the “Company”)
under and pursuant to the 2007 Stock Plan (the “Plan”) and the Stock Option Agreement dated
                        ,              (the
“Option Agreement”). Participant’s fringe benefit tax liability is                          (the “FBT
Liability”). 
 2. Delivery of Payment. Participant herewith delivers to the Company the full purchase price of the Shares, as
set forth in the Option Agreement, and any and all FBT Liability and withholding taxes due in connection with the exercise of the Option as follows: 
  

			
	Method of Exercise (check one)	  	Payment of FBT Liability (check one)
		
	
             Cash
	  	             Cash
		
	
             Cashless
	  	             Shares

 3. Representations of Participant. Participant acknowledges that Participant has received, read and
understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and conditions. 
 4. Rights as
Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder
shall exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares shall be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No
adjustment shall be made for a dividend or other right for which the record date is prior to the date of issuance except as provided in Section 11 of the Plan. 

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

 (a) Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a
written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name of each proposed purchaser or other transferee (“Proposed Transferee”);
(iii) the number of Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder proposes to transfer the Shares (the “Offered Price”), and the Holder shall
offer the Shares at the Offered Price to the Company or its assignee(s). 
 (b) Exercise of Right of First Refusal. At any time
within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred to any one or more of
the Proposed Transferees, at the purchase price determined in accordance with subsection (c) below. 
 (c) Purchase Price. The
purchase price (“Purchase Price”) for the Shares purchased by the Company or its assignee(s) under this Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of
the non-cash consideration shall be determined by the Board of Directors of the Company in good faith. 
 (d) Payment. Payment of the
Purchase Price shall be made, at the option of the Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee, to the
assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 

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

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

  
 -2- 

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

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

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

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED, SOLD
OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE
THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL HELD
BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST
REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER
FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF
BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 
 (b) Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers
its own securities, it may make appropriate notations to the same effect in its own records. 

  
 -3- 

 (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 Participant and his or her heirs, executors, administrators, successors and assigns. 
 9. Interpretation. Any dispute
regarding the interpretation of this Exercise Notice shall be submitted by Participant or by the Company forthwith to the Administrator which shall review such dispute at its next regular meeting. The resolution of such a dispute by the
Administrator shall be final and binding on all parties. 
 10. Governing Law; Severability. This Exercise Notice is governed by the
internal substantive laws but not the choice of law rules, of Delaware. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in
full force and effect. 
 11. Entire Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise
Notice, the Plan, the Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the
Company and Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 

(signature page to follow) 

  
 -4- 

							
	Submitted by:	 		 	Accepted by:	  	
				
	PARTICIPANT	 		 	ZSCALER, INC.	  	
				
	 	 		 	  
	  	
	Signature	 		 	By	  	
				
	 	 		 	  
	  	
	Print Name	 		 	Print Name	  	
				
		 		 	  
	  	
		 		 	Title	  	
				
	Address:	 		 	Address:	  	
				
		 		 	  
	  	
		 		 	Date Received	  	

  
 -5- 

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
			
	 PARTICIPANT
	 	:	  	
			
	 COMPANY
	 	:	  	ZSCALER, INC.
			
	 SECURITY
	 	:	  	COMMON STOCK
			
	 AMOUNT
	 	:	  	
			
	 DATE
	 	:	  	

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

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

(c) Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in
substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the
issuer qualifies under Rule 701 at the time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such 

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

 

	
	PARTICIPANT
	
	   

	Signature
	
	   

	Print Name
	
	   

	Date

  
 -2- 

 ZSCALER, INC. 

2007 STOCK PLAN 
 STOCK
OPTION AGREEMENT — EARLY EXERCISE 
 Unless otherwise defined herein, the terms defined in the 2007 Stock Plan (the
“Plan”) shall have the same defined meanings in this Stock Option Agreement – Early Exercise (the “Option Agreement”). 
  

	I.	NOTICE OF STOCK OPTION GRANT 

         Name:
                                         
                            

        Address:
                                         
                        
  

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

 

			
	         Date of Grant
	  	                                     
                                         
          
		
	        Vesting Commencement Date	  	                                     
                                         
          
		
	        Exercise Price per Share	  	$                                     
                                         
        
		
	        Total Number of Shares Granted	  	                                     
                                         
          
		
	        Total Exercise Price	  	$                                     
                                         
        
		
	        Type of Option:	  	             Incentive Stock Option
		
		  	             Nonstatutory Stock Option
		
	        Term/Expiration Date:	  	                                     
                                         
          

 Vesting Schedule: 

This Option shall be exercisable in whole or in part, according to the following vesting schedule: 

[insert vesting schedule] 

 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 case this Option shall be exercisable for one (1) year after Optionee ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may this Option be exercised after the
Term/Expiration Date as provided above and this Option may be subject to earlier termination as provided in Section 13(c) of the Plan. 
  

	II.	AGREEMENT 

 1. Grant of Option. The Administrator of the Company hereby grants to
the Optionee named in the Notice of Grant in Part I of this Agreement (the “Optionee”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Grant, at the exercise price per Share set
forth in the Notice of Grant (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
Notice of Grant as an Incentive Stock Option (“ISO”), this Option is intended to qualify as an Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of Code
Section 422(d), this Option shall be treated as a Nonstatutory Stock Option (“NSO”). Further, if for any reason this Option (or portion thereof) shall not qualify as an ISO, then, to the extent of such nonqualification, such Option
(or portion thereof) shall be regarded as a NSO granted under the Plan. In no event 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. 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) Subject to subsections 2(a)(ii) and 2(a)(iii) below, this Option shall be exercisable cumulatively according to the vesting
schedule set forth in the Notice of Grant. Alternatively, 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. 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). 
 (ii) As a
condition to exercising this Option for unvested Shares, the Optionee shall execute the Restricted Stock Purchase Agreement. 
 (iii) 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 

  
 -2- 

 
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. 

3. 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. 
 4. 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 Common Stock (or other securities) of the
Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other securities) of the Company held by Optionee (other than those
included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred 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 Common Stock (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 4 shall not apply to a registration relating solely to employee benefit plans on Form S-1 or Form S-8 or similar forms that may be promulgated in the future, or a registration
relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to
the foregoing restriction until the end of said one hundred 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 4. 

  
 -3- 

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

(b) check; 
 (c) consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or 
 (d) surrender of
other Shares which (i) shall be valued at its Fair Market Value on the date of exercise, and (ii) must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of
the Administrator, shall not result in any adverse accounting consequences to the Company. 
 6. Restrictions on Exercise. This
Option may not be exercised until such time as the Plan has been approved by the 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. 
 7. 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. 
 8. Term of Option. This Option may be exercised only within the term set out in the Notice of Grant, and may be
exercised during such term only in accordance with the Plan and the terms of this Option. 
 9. Tax Obligations. 

(a) Withholding Taxes. 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) 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, 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 Optionee. 
 (c) Code Section 409 A. Under Code
Section 409A, an Option that vests after December 31, 2007 (or that vested on or prior to such date but which was materially modified after October 3, 2007) that was granted with a per Share exercise price that is determined by the
Internal 

  
 -4- 

 
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. 

10. Entire Agreement; Governing Law. The Plan is incorporated herein by reference. The Plan and this Option Agreement constitute the
entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Optionee with respect to the subject matter hereof, and may not be modified adversely
to the Optionee’s interest except by means of a writing signed by the Company and Optionee. This Agreement is governed by the internal substantive laws but not the choice of law rules of California. 

11. 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 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. 

  
 -5- 

 Optionee acknowledges receipt of a copy of the Plan and represents that he or she is familiar
with the terms and provisions thereof, and hereby accepts this Option subject to all of the terms and provisions thereof. Optionee has reviewed the Plan and this Option in their entirety, has had an opportunity to obtain the advice of counsel prior
to executing this Option and fully understands all provisions of the Option. 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 below. 
  

							
	OPTIONEE	 		 	ZSCALER, INC.	  	
				
	 	 		 	  
	  	
	Signature	 		 	Signature	  	
				
	«Name»	 		 	  
	  	
	Print Name	 		 	Print Name	  	
				
	 	 		 	  
	  	
		 		 	Print Title	  	
	 	 		 		  	
	Residence Address	 		 		  	

  
 -6- 

 EXHIBIT A 

2007 STOCK PLAN 
 EXERCISE
NOTICE 
 Zscaler, Inc. 
 Attention: Chief Financial
Officer 
 1. Exercise of Option. Effective as of today,
                    ,             , the undersigned
(“Optionee”) hereby elects to exercise Optionee’s option (the “Option”) to
purchase                    shares of the Common Stock (the “Shares”) of Zscaler, Inc. (the “Company”) under
and pursuant to the 2007 Stock Plan (the “Plan”) and the Stock Option Agreement dated «AgtDate» (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 (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 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, 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 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 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. “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, and there shall be no further transfer of such Shares except in accordance with the terms of this Section. 

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

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. 

  
 -2- 

 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: 

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. 

  
 -3- 

 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. 

11. Entire Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan, the
Restricted Stock Purchase Agreement, the Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and
agreements of the Company and Optionee with respect to the subject matter hereof, 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	 		 	ZSCALER, INC.
			
	   
	 		 	  

	Signature	 		 	By
			
	   
	 		 	  

	Print Name	 		 	Its
			
	Address:	 		 	Address:
			
	 	 		 	
			
	 	 		 	
			
	 	 		 	
		 		 	Date Received:                                  
                                         
    

  
 -4- 

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
	OPTIONEE	  	:	  	
			
	COMPANY	  	:	  	ZSCALER, INC.
			
	SECURITY	  	:	  	COMMON STOCK
			
	AMOUNT	  	:	  	                     SHARES
			
	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 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 Optionee, the exercise shall be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such 

 
longer period as any market stand-off agreement may require) the Securities exempt under Rule 701 may be resold, subject to the satisfaction of the applicable conditions specified by
Rule 144, including in the case of affiliates (1) the availability of certain public information about the Company, (2) the amount of Securities being sold during any three (3) month period not exceeding specified limitations,
(3) the resale being made in an unsolicited “broker’s transaction”, transactions directly with a “market maker” or “riskless principal transactions” (as those terms are defined under the Securities Exchange
Act of 1934) and (4) the timely filing of a Form 144, if applicable. 
 In the event that the Company does not qualify under
Rule 701 at the time of grant of the Option, then the Securities may be resold in certain limited circumstances subject to the provisions of Rule 144, which may require (i) the availability of current public information about the
Company; (ii) the resale to occur more than a specified period after the purchase and full payment (within the meaning of Rule 144) for the Securities; and (iii) in the case of the sale of Securities by an affiliate, the satisfaction
of the conditions set forth in sections (2), (3) and (4) of the paragraph immediately above. 
 (d) 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 

ZSCALER, INC. 
 2007 STOCK
PLAN 
 RESTRICTED STOCK PURCHASE AGREEMENT 

THIS AGREEMENT is made between
                     (the “Purchaser”) and Zscaler, Inc. (the “Company”) or its assignees of rights
hereunder as of                 ,         . 

Unless otherwise defined herein, the terms defined in the 2007 Stock Plan shall have the same defined meanings in this Agreement. 

RECITALS 
 A.
Pursuant to the exercise of the option granted to Purchaser under the Plan and pursuant to 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 shares of Common Stock 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(b) 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. 

  
 -2- 

 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. 
 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 STOCKHOLDER, 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 a 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. 

  
 -3- 

 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. 

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, 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	 		 	ZSCALER, 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 Zscaler, Inc.
                                
(                    ) shares of the Common Stock of Zscaler, 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 Zscaler,
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 

                       
                 ,              

Corporate Secretary 
 Zscaler, Inc. 

Dear Secretary: 
 As Escrow Agent for both
Zscaler, 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 stockholder 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. 

  
 -2- 

 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 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	 		 	ZSCALER, 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: 

  

							
	 	 	TAXPAYER	  	 	  	SPOUSE
				
	 NAME:
	 	  
	  		  	  

				
	 ADDRESS:
	 	  
	  		  	  

				
		 	  
	  		  	  

				
	 TAX ID NO.:
	 	  
	  		  	  

				
	 TAXABLE YEAR:    
	 	______	  		  	

  

	2.	The property with respect to which the election is made is described as follows:              shares (the “Shares”) of the Common Stock
of Zscaler, 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 shall 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

 ZSCALER, INC. 

2007 STOCK PLAN 
 STOCK
OPTION AGREEMENT 
 FOR EMPLOYEES RESIDENT IN INDIA 

Unless otherwise defined herein, the terms defined in the 2007 Stock Plan and Appendix A thereto (the “Plan”) shall have the same
defined meanings in this Stock Option Agreement (the “Option Agreement”). 
  

					
	I.	 	 NOTICE OF STOCK OPTION GRANT

			
		 	Name:	 	 
			
		 	Address:	 	 
			
		 		 	 

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

			
	Date of Grant:	 	 
		
	Vesting Commencement Date:	 	 
		
	Exercise Price per Share:	 	 
		
	Total Number of Shares Granted:    	 	 
		
	Total Exercise Price:	 	 
		
	Type of Option:	 	                  Incentive Stock Option
		
	 	 	        X        Nonstatutory Stock Option
		
	Term/Expiration Date:	 	 

 Vesting Schedule: This Option shall be exercisable, in whole or in part, according to the following
vesting schedule: 
 Twenty five percent (25%) of the Shares subject to the Option shall vest on the corresponding day twelve
(12) months from the Vesting Commencement Date and the remaining seventy five percent (75%) of the Shares subject to the Option shall vest in equal monthly installments over the next thirty six (36) months on the same day of each relevant
month as the Vesting Commencement Date (or if there is no corresponding day, on the last day of the month), subject to Participant continuing to be a Service Provider through each such date. 

 Termination Period: 

This Option shall be exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is due to
Participant’s death or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may this Option be
exercised after the Term/Expiration Date as provided above and may be subject to earlier termination as provided in Section 11(c) of the Plan. 

II.    AGREEMENT 

1.    Grant of Option. The Administrator of the Company hereby grants to the Participant named in the Notice of
Stock Option Grant in Part I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the exercise price per Share set forth in the Notice of
Stock Option Grant (the “Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 19(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. 

2.    Exercise of Option. 

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

(b)    Compulsory Exercise. Upon the occurrence of the Compulsory Exercise Date, the Company shall send a notice
that the Compulsory Exercise Date has occurred (the “Compulsory Notice”) to the Participant’s address as set forth in the books and records of the Company. The Participant shall have the duty to keep the Company apprised of any
changes in the Participant’s address. The Company shall have no duty to confirm any Participant’s address, nor shall the Company have any liability if the Participant’s address on the books and records of the Company is not correct
(so long as the address was an address used by the Participant since the granting of the Award). 
 The Participant shall have such period
of time as is determined by the Administrator from the date the Compulsory Notice is sent (the “Compulsory Election Period”) by the Company to make an election with respect to this Option. The Participant may: 1) exercise the Option for
cash, and pay any fringe benefit tax (“FBT”) liability, discussed in Section 9 below, in cash or in Shares; 2) exercise the Option on a cashless basis (including by way of net exercise) and pay any FBT liability in cash or in Shares;
or 3) elect not to exercise the Option, in which case this Option shall remain outstanding and subject to the terms and conditions of this Option Agreement. 

If the Company does not receive any response to the Compulsory Notice from the Participant during the Compulsory Election Period, the Company
shall automatically perform a cashless exercise on behalf of the Participant and shall pay any FBT liability out of Shares issued (the “Compulsory Shares”). Notwithstanding the foregoing sentence, in the event that the (A) FBT
liability with respect to any Option is determined by the Administrator to be greater than the difference between the (i) Fair Market Value of the vested portion of the Shares subject to the Option and the (ii) total exercise price of the
vested portion of the Shares subject to the Option (the “spread”) and (B) the Company has not received any response from Participant following the Compulsory Election Period, the vested portion of the Option shall terminate and all
Shares thereunder shall be forfeited to the Company. In the event of the Company’s automatic cashless exercise following the Compulsory Election Period, the Company shall hold the Compulsory Shares for the benefit of the Participant for a
period of five (5) years from the date of the cashless exercise. If the Compulsory Shares are not claimed by the Participant within such five (5) year period, such Compulsory Shares shall be deemed abandoned and shall be forfeited to the
Company. 

  
 -2- 

 (c)    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 Participant on the date on which the Option is exercised with respect to such Shares. 

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

4.    Lock-Up Period. Participant hereby agrees that Participant shall not
offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any Common
Stock (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other securities) of the Company
held by Participant (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred 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). 

  
 -3- 

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

5.    Method of Payment. Subject to Section 2(b), payment of the aggregate Exercise Price shall be by any of
the following, or a combination thereof, at the election of the Participant: 
 (a)    cash; 

(b)    check; 

(c)    consideration received by the Company under a formal cashless exercise program adopted by the Company in connection
with the Plan, including, without limitation, by way of a net exercise as the Administrator determines and if permitted by Applicable Laws; or 

(d)    surrender of other Shares which (i) if acquired either directly or indirectly from the Company, have been
owned by Participant for at least the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair Market Value on the date of exercise, and (iii) must be owned free and clear of any liens,
claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse accounting consequences to the Company. 

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

7.    Non-Transferability of Option. This Option may not be transferred in
any manner otherwise than by will or by the laws of descent or distribution and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall be binding upon the executors,
administrators, heirs, successors and assigns of Participant. 
 8.    Term of Option. This Option may be
exercised only within the term set out in the Notice of Stock Option Grant, and may be exercised during such term only in accordance with the Plan and the terms of this Option. 

9.    Tax Obligations. 

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

  
 -4- 

 (b)    Fringe Benefit Tax. Subject to Section 2(b), and except as
otherwise determined by the Administrator, Participant agrees to reimburse or pay the Company (or its Indian Subsidiary, as directed by the Indian Subsidiary) in full, any liability that the Company or its Indian Subsidiary incurs towards any FBT,
social tax, or other Indian tax paid or payable in respect of the grant, vesting, delivery, or exercise of the Option or the underlying Shares, within the time and in the manner prescribed by the Company or its Indian Subsidiary. The Administrator
may in its sole discretion determine whether the FBT with respect to the Option or its underlying Shares will be paid by selling a portion of vested Shares or by direct payment from the Participant to the Company, by withholding a number of Shares
upon exercise with a Fair Market Value equal to the FBT liability, some other method, or by some combination thereof. Participant agrees to execute any additional documents requested by the Company or its Indian Subsidiary for the reimbursement of
such taxes to the Company. 
 The Participant grants to the Company and its Indian Subsidiary the irrevocable authority, as agents of
Participant and on his or her behalf, to sell, retain or procure the sale of sufficient Shares subject to the Option so that the net proceeds receivable by the Company or its Indian Subsidiary are as far as possible equal to but not less than the
amount of any tax the Participant is liable for (including FBT reimbursement obligations pursuant to the preceding paragraph) and the Company or its Indian Subsidiary shall remit any balance to Participant. 

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

  
 -5- 

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

 

					
	PARTICIPANT	 		 	ZSCALER, INC.
			
	   
	 		 	   

	Signature	 		 	
			
	Jay Chaudhry	 		 	  

	Print Name	 		 	
			
	  
	 		 	Jay Chaudhry
		 		 	Print Name
			
	  
	 		 	Chairman and CEO
		 		 	Title
			
	   
	 		 	  

	Residence Address	 		 	

  
 -6- 

 EXHIBIT A 

2007 STOCK PLAN 

EXERCISE NOTICE 
 Zscaler, Inc. 

110 Baytech Drive, Suite 100 
 San Jose, CA 95134 

Attention: Chief Financial Officer 

1.    Exercise of Option. Effective as of today,
                        ,         , the undersigned
(“Participant”) hereby elects to exercise Participant’s option (the “Option”) to purchase
                         shares of the Common Stock (the “Shares”) of Zscaler, Inc. (the “Company”)
under and pursuant to the 2007 Stock Plan (the “Plan”) and the Stock Option Agreement dated
                        ,          (the “Option Agreement”).
Participant’s fringe benefit tax liability is                          (the “FBT Liability”). 

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

			
	Method of Exercise (check one)	  	Payment of FBT Liability (check one)
	         Cash	  	         Cash
	         Cashless	  	         Shares

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

4.    Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books
of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the
Option. The Shares shall be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date is prior to the date
of issuance except as provided in Section 11 of the Plan. 
 5.    Company’s Right of First
Refusal. Before any Shares held by Participant or any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its
assignee(s) shall have a right of first refusal to purchase the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 

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

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

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

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

  
 -2- 

 (g)    Termination of Right of First Refusal. The Right of First
Refusal shall terminate as to any Shares upon the earlier of (i) the first sale of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor corporation has equity securities that are publicly
traded. 
 6.    Tax Consultation. Participant understands that Participant may suffer adverse tax consequences
as a result of Participant’s purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant deems advisable in connection with the purchase or disposition of the Shares and that
Participant is not relying on the Company for any tax advice. 
 7.    Restrictive Legends and Stop-Transfer
Orders. 
 (a)    Legends. Participant understands and agrees that the Company shall cause the legends set
forth below or legends substantially equivalent thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required by the Company or by state or federal securities laws: 

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

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

  
 -3- 

 (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 Participant and his or her heirs, executors, administrators, successors and assigns. 

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

10.    Governing Law; Severability. This Exercise Notice is governed by the internal substantive laws but not the
choice of law rules, of Delaware. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in full force and effect. 

11.    Entire Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice,
the Plan, the Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company
and Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 

(signature page to follow) 

  
 -4- 

					
	Submitted by:	 		 	Accepted by:
			
	PARTICIPANT	 		 	ZSCALER, INC.
			
	   
	 		 	   

	Signature	 		 	By
			
	   
	 		 	Jay Chaudhry
	Print Name	 		 	Print Name
			
	  
	 		 	Chairman and CEO
		 		 	Title
			
	Address:	 		 	Address:
		 		 	110 Baytech Drive, Suite 100
		 		 	San Jose, CA 95134
			
	  
	 		 	   

		 		 	Date Received

  
 -5- 

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
	PARTICIPANT	 	:	 	
	COMPANY	 	:	 	ZSCALER, INC.
	SECURITY	 	:	 	COMMON STOCK
	AMOUNT	 	:	 	
	DATE	 	:	 	

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

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

(c)    Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the
Securities Act, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the
satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the event
the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off
agreement may require) the Securities exempt under Rule 701 may be resold, subject to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates (1) the availability of certain public
information about the Company, (2) the amount of Securities being sold during any three (3) month period not exceeding specified limitations, (3) the resale being made in an unsolicited “broker’s transaction”,
transactions directly with a “market maker” or “riskless principal transactions” (as those terms are defined under the Securities Exchange Act of 1934) and (4) the timely filing of a Form 144, if applicable. 

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

 

	
	PARTICIPANT
	
	   

	Signature
	
	   

	Print Name
	
	   

	Date

  
 -2- 

 ZSCALER, INC. 

2007 STOCK PLAN 
 STOCK
OPTION AGREEMENT – FOR NON-U.S. RESIDENTS 
 Unless otherwise defined herein, the terms
defined in the 2007 Stock Plan (the “Plan”) shall have the same defined meanings in this Stock Option Agreement (the “Option Agreement”). 

I.      NOTICE OF STOCK OPTION GRANT 

Name: 
 Address:

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

							
	 Date of Grant:
	 	 	  	 	  	
	 Vesting Commencement Date:
	 	 	  	 	  	
	 Exercise Price per Share:
	 	 	  	 	  	
	 Total Number of Shares Granted:
	 	 	  	 	  	
	 Total Exercise Price:
	 	 	  	 	  	
	 Type of Option:
	 	NSO	  	Nonstatutory Stock Option	  	
	 Term/Expiration Date:
	 	 	  	 	  	
	 Vesting Schedule:
	 		  		  	

 To the extent permitted by Applicable Law, this Option shall be exercisable, in whole or in part, according to
the following vesting schedule: 
 Twenty five percent (25%) of the Shares subject to the Option shall vest on the corresponding day twelve
(12) months from the Vesting Commencement Date (or if there is no corresponding day in the relevant month, on the last day of the relevant month), and the remaining seventy five percent (75%) of the Shares subject to the Option shall vest in
equal monthly installments over the next thirty six (36) months on the same day of each relevant month as the Vesting Commencement Date (or if there is no corresponding day, on the last day of the month), subject to Participant continuing to be
a Service Provider through each such date. 
 Termination Period: 

This Option shall be exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is due
to Participant’s death or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service Provider. Notwithstanding the foregoing sentence, in no event may this Option be
exercised after the Term/Expiration Date as provided above and may be subject to earlier termination as provided in Section 11(c) of the Plan. 

 II.    AGREEMENT 

1. Grant of Option. The Administrator of the Company hereby grants to the Participant named in the Notice of Stock Option Grant in Part
I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the exercise price per Share set forth in the Notice of Stock Option Grant (the
“Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 19(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. 
 2. Exercise of Option. 

(a) Right to Exercise. If permitted by Applicable Law, this Option shall be exercisable during its term in accordance with the Vesting
Schedule set out in the Notice of Stock Option Grant and with the applicable provisions of the Plan and this Option Agreement. 
 (b)
Method of Exercise. This Option shall be exercisable by delivery of an exercise notice in the form attached as Exhibit A (the “Exercise Notice”) or in a manner and pursuant to such procedures as the
Administrator may determine, which shall state the election to exercise the Option, the number of Shares with respect to which the Option is being exercised, and such other representations and agreements as may be required by the Company. The
Exercise Notice shall be accompanied by payment of the aggregate Exercise Price as to all Exercised Shares, together with any applicable tax withholding. This Option shall be deemed to be exercised upon receipt by the Company of such fully executed
Exercise Notice accompanied by the aggregate Exercise Price, together with any applicable tax withholding. 
 No Shares shall be issued
pursuant to the exercise of an Option unless such issuance and such exercise comply with Applicable Laws. Assuming such compliance, for income tax purposes the Shares shall be considered transferred to Participant on the date on which the Option is
exercised with respect to such Shares. 
 3. Participant’s Representations. In the event the Shares have not been registered
under the Securities Act of 1933, as amended, at the time this Option is exercised, Participant shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment
Representation Statement in the form attached hereto as Exhibit B. 
 4.
Lock-Up Period. Participant hereby agrees that Participant shall not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any
option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole
or in part, any of the economic consequences of ownership of any Common Stock (or other securities) of the Company held by Participant (other than those included in the registration) for a period specified by the representative of the underwriters
of Common Stock (or other securities) of the Company not to exceed one hundred 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). 

  
 -2- 

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

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

(b) check; 
 (c) consideration
received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or 
 (d) surrender of
other Shares which (i) if acquired either directly or indirectly from the Company, have been owned by Participant for at least the period required to avoid a charge to the Company’s reported earnings, (ii) shall be valued at its Fair
Market Value on the date of exercise, and (iii) must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse
accounting consequences to the Company. 
 6. Restrictions on Exercise. This Option may not be exercised until such time as the Plan
has been approved by the stockholders of the Company, or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute a violation of any Applicable Law. 

7. Non-Transferability of Option. This Option may not be transferred in any manner otherwise
than by will or by the laws of descent or distribution and may be exercised during the lifetime of Participant only by Participant. The terms of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs,
successors and assigns of Participant. 
 8. Term of Option. This Option may be exercised only within the term set out in the Notice
of Stock Option Grant, and may be exercised during such term only in accordance with the Plan and the terms of this Option. 

  
 -3- 

 9. Tax Obligations. 

(a) Tax Withholding. Regardless of any action the Company or Participant’s employer (the “Employer”) takes with respect
to any or all income tax, social insurance, payroll tax, payment on account or other tax-related withholding (“Tax-Related Items”), Participant acknowledges
that the ultimate liability for all Tax-Related Items legally due by him or her is and remains Participant’s responsibility and that Company and/or the Employer (1) make no representations or
undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of the Option grant, including the grant, vesting or exercise of the Option, the subsequent sale of Shares acquired
pursuant to such exercise and the receipt of any dividends; and (2) do not commit to structure the terms of the grant or any aspect of the Option to reduce or eliminate Participant’s liability for
Tax-Related Items. 
 Prior to exercise of the Option, Participant will pay or make adequate
arrangements satisfactory to the Company and/or the Employer to satisfy all withholding and payment obligations of the Company and/or the Employer. In this regard, Participant authorizes the Company and/or the Employer to withhold all applicable Tax-Related Items legally payable by Participant from his or her wages or other cash compensation paid to Participant by the Company and/or the Employer or from proceeds of the sale of Shares. Alternatively, or in
addition, if permissible under local law, the Company may, in its discretion, (1) sell or arrange for the sale of Shares that Participant acquires to meet the withholding obligation for Tax-Related Items,
and/or (2) withhold in Shares, provided that the Company only withholds the amount of Shares necessary to satisfy the minimum withholding amount. Finally, Participant will pay to the Company or the Employer any amount of Tax-Related Items that the Company or the Employer may be required to withhold as a result of Participant’s participation in the Plan or Participant’s purchase of Shares that cannot be satisfied by the
means previously described. The Company may refuse to honor the exercise and refuse to deliver the Shares if Participant fails to comply with his or her obligations in connection with the Tax-Related Items as
described in this Section. 
 (b) Code Section 409A. To the extent Participant is or becomes subject to U.S.
Federal income taxation, this subsection (b) shall apply. Under Code Section 409A, an Option that vests after December 31, 2004 that was granted with a per Share exercise price that is determined by the Internal Revenue Service (the
“IRS”) to be less than the Fair Market Value of a Share on the date of grant (a “discount option”) may be considered “deferred compensation.” An Option that is a “discount option” may result in (i) income
recognition by Participant prior to the exercise of the Option, (ii) an additional twenty percent (20%) federal income tax, and (iii) potential penalty and interest charges. The “discount option” may also result in additional
state income, penalty and interest tax to the Participant. Participant acknowledges that the Company cannot and has not guaranteed that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair Market Value of a
Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option was granted with a per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant shall
be solely responsible for Participant’s costs related to such a determination. 
 10. Acknowledgements. 

(a) Participant 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. Participant 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 Agreement and fully understands all provisions of the Option. Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under the Plan or this Option
Agreement. Participant further agrees to notify the Company upon any change in the residence address indicated below. 

  
 -4- 

 (b) The Company (which may or may not be Participant’s Employer) is granting the Option.
The Company will administer the Plan from outside Participant’s country of residence, and United States law will govern all Options granted under the Plan. 

(c) Participant acknowledges that benefits and rights provided under the Plan are wholly discretionary and, although provided by the Company,
do not constitute regular or periodic payments. Unless otherwise required by Applicable Law, the benefits and rights provided under the Plan are not to be considered part of Participant’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. Participant 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) Participant ceasing to have any rights under, or ceasing 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. 
 (e) The Plan will not be deemed to constitute, and will not
be construed by Participant to constitute, part of the terms and conditions of employment, and the Company will not incur any liability of any kind to Participant 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 Participant to constitute, an employment or
labor relationship of any kind with the Company. 
 (g) In the event of termination of Participant’s employment (whether or not in
breach of local labor laws), Participant’s right to receive the Option and vest in the Option under the Plan, if any, will terminate effective as of the date that Participant is no longer actively employed and will not be extended by any notice
period mandated under local law (e.g., active employment would not include a period of “garden leave” or similar period pursuant to local law); furthermore, in the event of termination of employment (whether or not in breach of
local labor laws), Participant’s right to exercise the Option after termination of employment, if any, will be measured by the date of termination of Participant’s active employment and will not be extended by any notice period mandated
under local law; the Administrator shall have the exclusive discretion to determine when Participant is no longer actively employed for purposes of his or her Option grant. 

11. Data Privacy. By entering into this Option Agreement, and as a condition of the grant of the Option, Participant hereby
explicitly and unambiguously consents to the collection, use and transfer, in electronic or other form, of his or her personal data as described in this document by and among, as applicable, the Employer, and Company and its Subsidiaries and
affiliates for the exclusive purpose of implementing, administering and managing Participant’s participation in the Plan. 

  
 -5- 

 Participant understands that the Company and the Employer, its Parent or any Subsidiary may
hold certain personal information about Participant, including, but not limited to, Participant’s name, home address and telephone number, date of birth, social insurance number or other identification number, salary, nationality, job title,
any Shares or directorships held in the Company, details of all Options or any other entitlement to Shares awarded, canceled, exercised, vested, unvested or outstanding in Participant’s favor, for the purpose of implementing, administering and
managing the Plan (“Data”). Participant understands that Data may be transferred to any third parties assisting in the implementation, administration and management of the Plan, that these recipients may be located in Participant’s
country or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than Participant’s country. Participant understands that he or she may request a list with the names and
addresses of any potential recipients of the Data by contacting Participant’s local human resources representative. Participant authorizes the recipients to receive, possess, use, retain and transfer the Data, in electronic or other form, for
the sole purpose of implementing, administering and managing Participant’s participation in the Plan, including any requisite transfer of such Data as may be required to a broker or other third party with whom Participant may elect to deposit
any shares of stock acquired upon exercise of the Option. Participant understands that Data will be held only as long as is necessary to implement, administer and manage Participant’s participation in the Plan. Participant understands that he
or she may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing
Participant’s local human resources representative. Participant understands, however, that refusing or withdrawing his or her consent may affect Participant’s ability to participate in the Plan. For more information on the consequences of
Participant’s refusal to consent or withdrawal of consent, Participant understands that he or she may contact his or her local human resources representative. 

12. English Language. Participant has received the terms and conditions of this Option Agreement and any other related communications,
and Participant consents to having received these documents in English. If Participant has received this Option Agreement or any other document related to the Plan translated into a language other than English and if the translated version is
different than the English version, the English version will control. 
 13. Entire Agreement; Governing Law. The Plan is incorporated
herein by reference. The Plan and this Option Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant
with respect to the subject matter hereof, and may not be modified adversely to Participant’s interest except by means of a writing signed by the Company and Participant. This Agreement is governed by the internal substantive laws but not the
choice of law rules of Delaware. 
 14. No Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING
OF SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED
THIS OPTION OR ACQUIRING SHARES HEREUNDER. PARTICIPANT FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF
CONTINUED ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING
PARTICIPANT) TO TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE. 

  
 -6- 

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

									
	PARTICIPANT	 		 	ZSCALER, INC.
					
		 	 	 		 		 	 
		 	Signature	 		 		 	By
					
		 	 	 		 		 	 
		 	Print Name	 		 		 	Print Name
					
		 	 	 		 		 	 
		 		 		 		 	Title
					
		 	 	 		 		 	
		 	Residence Address	 		 		 	

  
 -7- 

 EXHIBIT A 

2007 STOCK PLAN 
 EXERCISE
NOTICE 
 Zscaler, Inc. 
 Attention: Stock Administration

 1. Exercise of Option. Effective as of today,
                    ,         , the undersigned (“Participant”) hereby elects to
exercise Participant’s option (the “Option”) to purchase                      shares of the Common Stock (the
“Shares”) of Zscaler, Inc. (the “Company”) under and pursuant to the 2007 Stock Plan (the “Plan”) and the Stock Option Agreement dated
                    ,          (the “Option Agreement”). 

2. Delivery of Payment. Participant herewith delivers to the Company the full purchase price of the Shares, as set forth in the Option
Agreement, and any and all withholding taxes due in connection with the exercise of the Option. 
 3. Representations of Participant.
Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and conditions. 

4. Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or of a
duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares shall
be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date is prior to the date of issuance except as
provided in Section 11 of the Plan. 
 5. Company’s Right of First Refusal. Before any Shares held by
Participant or any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its assignee(s) shall have a right of first
refusal to purchase the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 
 (a)
Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name
of each proposed purchaser or other transferee (“Proposed Transferee”); (iii) the number of Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the Offered Price to the Company or its assignee(s). 

 (b) Exercise of Right of First Refusal. At any time within thirty (30) days after
receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred to any one or more of the Proposed Transferees, at the
purchase price determined in accordance with subsection (c) below. 
 (c) Purchase Price. The purchase price (“Purchase
Price”) for the Shares purchased by the Company or its assignee(s) under this Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of the non-cash consideration shall be determined by the Board of Directors of the Company in good faith. 
 (d)
Payment. Payment of the Purchase Price shall be made, at the option of the Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of
repurchase by an assignee, to the assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 

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

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

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

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

  
 -2- 

 7. Restrictive Legends and Stop-Transfer Orders. 

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

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED, SOLD
OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE
THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST REFUSAL HELD BY
THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT OF FIRST
REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO RESTRICTIONS ON TRANSFER FOR
A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT BE SOLD OR OTHERWISE DISPOSED OF BY
THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 
 (b) Stop-Transfer
Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers
its own securities, it may make appropriate notations to the same effect in its own records. 
 (c) Refusal to Transfer. The
Company shall not be required (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Exercise Notice, or (ii) to treat as owner of such Shares or to accord the
right to vote or pay dividends to any purchaser or other transferee to whom such Shares shall have been so transferred. 
 8. Successors
and Assigns. The Company may assign any of its rights under this Exercise Notice to single or multiple assignees, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on
transfer herein set forth, this Exercise Notice shall be binding upon Participant and his or her heirs, executors, administrators, successors and assigns. 

  
 -3- 

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

10. Governing Law; Severability. This Exercise Notice is governed by the internal substantive laws but not the choice of law rules,
of Delaware. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Exercise Notice shall continue in full force and effect. 

11. Entire Agreement. The Plan and Option Agreement are incorporated herein by reference. This Exercise Notice, the Plan, the Option
Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant with
respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. 
  

									
	Submitted by:	 		 	Accepted by:
			
	PARTICIPANT	 		 	ZSCALER, INC.
					
		 	 	 		 		 	 
		 	Signature	 		 		 	By
					
		 	 	 		 		 	 
		 	Print Name	 		 		 	Print Name
					
		 	 	 		 		 	 
		 	Address:	 		 		 	Title
					
		 	 	 		 		 	 
		 		 		 		 	Date Received
					
		 	 	 		 		 	

  
 -4- 

 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
	PARTICIPANT	  	:	  	
			
	COMPANY	  	:	  	ZSCALER, INC.
			
	SECURITY	  	:	  	COMMON STOCK
			
	AMOUNT (shares)	  	:	  	
			
	DATE	  	:	  	

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

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

(c) Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in
substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain
conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Option to Participant, the exercise shall be exempt from registration under the Securities Act. In the event the Company becomes
subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off agreement may require)
the Securities exempt under Rule 701 may be resold, subject to the satisfaction of 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) Participant further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied,
registration under the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and that, notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange
Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to Rules 144 or 701 shall have a substantial burden of proof in establishing that
an exemption from registration is available for such offers or sales, and that such persons and their respective brokers who participate in such transactions do so at their own risk. Participant understands that no assurances can be given that any
such other registration exemption shall be available in such event. 
  

	
	PARTICIPANT
	
	   

	Signature
	
	   

	Print Name
	
	   

	Date

  
 -2-EX-10.5

 Exhibit 10.5 

ZSCALER, INC. 
 EMPLOYEE
INCENTIVE COMPENSATION PLAN 
 1. Purposes of the Plan. The Plan is intended to increase shareholder value and the success of the
Company by motivating Employees to (a) perform to the best of their abilities, and (b) achieve the Company’s objectives. 

2. Definitions. 
 (a)
“Actual Award” means as to any Performance Period, the actual award (if any) payable to a Participant for the Performance Period, subject to the Committee’s authority under Section 3(d) to modify the award. 

(b) “Affiliate” means any corporation or other entity (including, but not limited to, partnerships and joint
ventures) controlled by the Company. 
 (c) “Board” means the Board of Directors of the Company. 

(d) “Bonus Pool” means the pool of funds available for distribution to Participants. Subject to the terms of the Plan, the
Committee establishes the Bonus Pool for each Performance Period. 
 (e) “Code” means the Internal Revenue Code of 1986, as
amended. Reference to a specific section of the Code or regulation thereunder will include such section or regulation, any valid regulation promulgated thereunder, and any comparable provision of any future legislation or regulation amending,
supplementing or superseding such section or regulation. 
 (f) “Committee” means the committee appointed by the Board
(pursuant to Section 5) to administer the Plan. Unless and until the Board otherwise determines, the Board’s Compensation Committee will be the Committee administering the Plan. 

(g) “Company” means Zscaler, Inc., or any successor thereto. 

(h) “Disability” means a permanent and total disability determined in accordance with uniform and nondiscriminatory standards
adopted by the Committee from time to time. 
 (i) “Employee” means any executive, officer, or other employee of the
Company or of an Affiliate, whether such individual is so employed at the time the Plan is adopted or becomes so employed subsequent to the adoption of the Plan. 

(j) “Fiscal Year” means the fiscal year of the Company. 

(k) “Participant” means as to any Performance Period, an Employee who has been selected by the Committee for participation in
the Plan for that Performance Period. 

 (l) “Performance Period” means the period of time for the measurement of the
performance criteria that must be met to receive an Actual Award, as determined by the Committee in its sole discretion. A Performance Period may be divided into one or more shorter periods if, for example, but not by way of limitation, the
Committee desires to measure some performance criteria over 12 months and other criteria over 3 months. 
 (m) “Plan” means
this Employee Incentive Compensation Plan, as set forth in this instrument (including any appendix hereto) and as hereafter amended from time to time. 

(n) “Target Award” means the target award, at 100% of target level performance achievement, payable under the Plan to a
Participant for the Performance Period, as determined by the Committee in accordance with Section 3(b). 
 3. Selection of
Participants and Determination of Awards. 
 (a) Selection of Participants. The Committee, in its sole discretion, will select
the Employees who will be Participants for any Performance Period. Participation in the Plan is in the sole discretion of the Committee, on a Performance Period by Performance Period basis. Accordingly, an Employee who is a Participant for a given
Performance Period in no way is guaranteed or assured of being selected for participation in any subsequent Performance Period or Periods. 

(b) Determination of Target Awards. The Committee, in its sole discretion, will establish a Target Award for each Participant (which
may be expressed as a percentage of a Participant’s average annual base salary for the Performance Period or a fixed dollar amount or such other amount or based on such other formula as the Committee determines). 

(c) Bonus Pool. Each Performance Period, the Committee, in its sole discretion, will establish a Bonus Pool, which pool may be
established before, during or after the applicable Performance Period. Actual Awards will be paid from the Bonus Pool. 
 (d) Discretion
to Modify Awards. Notwithstanding any contrary provision of the Plan, the Committee may, in its sole discretion and at any time, (i) increase, reduce or eliminate a Participant’s Actual Award, and/or (ii) increase, reduce or
eliminate the amount allocated to the Bonus Pool. The Actual Award may be below, at or above the Target Award, in the Committee’s discretion. The Committee may determine the amount of any increase, reduction or elimination on the basis of such
factors as it deems relevant, and will not be required to establish any allocation or weighting with respect to the factors it considers. 

  
 -2- 

 (e) Discretion to Determine Criteria. Notwithstanding any contrary provision of the Plan,
the Committee will, in its sole discretion, determine the performance goals (if any) applicable to any Target Award (or portion thereof) which may include, without limitation: attainment of research and development milestones, billings, bookings,
business divestitures and acquisitions, cash flow, cash position, contract awards or backlog, customer-related measures, customer retention rates, business unit or division, earnings (which may include any calculation of earnings, including but not
limited to earnings before interest and taxes, earnings before taxes, earnings before interest, taxes, depreciation and amortization, earnings before taxes and net earnings), earnings per share, employee retention, employee mobility, expenses,
geographic expansion, gross margin, growth in stockholder value relative to the moving average of the S&P 500 Index or another index, hiring targets, internal rate of return, inventory turns, inventory levels, market share, milestone
achievements, net billings, net income, net profit, net revenue margin, net sales, new customers, new product development, new product invention or innovation, number of customers, operating cash flow, operating expenses, operating income,
operating margin, origination volume, overhead or other expense reduction, product defect measures, product development, product release timelines, productivity, profit, return on assets, return on capital, return on equity, return on
investment, return on sales, revenue, revenue growth, sales efficiency, sales results, sales growth, stock price, time to market, total stockholder return, units sold (total and new), working capital, and individual objectives such as MBOs,
peer reviews or other subjective or objective criteria. As determined by the Committee, the performance goals may be based on generally accepted accounting principles (“GAAP”) or Non-GAAP results and
any actual results may be adjusted by the Committee for one-time items, unbudgeted or unexpected items and/or payments of Actual Awards under the Plan when determining whether the performance goals have been
met. The goals may be on the basis of any factors the Committee determines relevant, and may be on an individual, divisional, business unit, segment or Company-wide basis. Any criteria used may be measured on such basis as the Committee determines,
including but not limited to, as applicable, (i) in absolute terms, (ii) in combination with another performance goal or goals (for example, but not by way of limitation, as a ratio or matrix), (iii) in relative terms (including, but
not limited to, results for other periods, passage of time and/or against another company or companies or an index or indices), (iv) on a per-share basis, (v) against the performance of the Company
as a whole or a segment of the Company and/or (vi) on a pre-tax or after-tax basis. The performance goals may differ from Participant to Participant and from award
to award. Failure to meet the goals will result in a failure to earn the Target Award, except as provided in Section 3(d). The Committee also may determine that a Target Award (or portion thereof) will not have a performance goal associated
with it but instead will be granted (if at all) in the sole discretion of the Committee. 
 4. Payment of Awards. 

(a) Right to Receive Payment. Each Actual Award will be paid solely from the general assets of the Company. Nothing in this Plan will
be construed to create a trust or to establish or evidence any Participant’s claim of any right other than as an unsecured general creditor with respect to any payment to which he or she may be entitled. 

(b) Timing of Payment. Payment of each Actual Award shall be made as soon as practicable after the end of the Performance Period to
which the Actual Award relates and after the Actual Award is approved by the Committee, but in no event later than (i) the fifteenth (15th) day of the third (3rd) month of the Fiscal Year immediately following the Fiscal Year in which the
Participant’s Actual Award is first no longer is subject to a substantial risk of forfeiture, and (ii) March 15 of the calendar year immediately following the calendar year in which the Participant’s Actual Award is first no
longer is subject to a substantial risk of forfeiture. Unless otherwise determined by the Committee, to earn an Actual Award a Participant must be employed by the Company or any Affiliate on the date the Actual Award is paid. 

  
 -3- 

      It is the intent that this Plan be exempt from, or comply with, the
requirements of Code Section 409A so that none of the payments to be provided hereunder will be subject to the additional tax imposed under Code Section 409A, and any ambiguities herein will be interpreted to be so exempt or so comply.
Each payment under this Plan is intended to constitute a separate payment for purposes of Treasury Regulation Section 1.409A-2(b)(2). 

(c) Form of Payment. Each Actual Award will generally be paid in cash (or its equivalent) in a single lump sum. The Committee
reserves the right to settle an Actual Award with a grant of an equity award under the Company’s then-current equity compensation plan. 

(d) Payment in the Event of Death or Disability. If a Participant dies or becomes is terminated due to his or her Disability prior to
the payment of an Actual Award the Committee has determined will be paid for a prior Performance Period, the Actual Award will be paid to his or her estate or to the Participant, as the case may be, subject to the Committee’s discretion to
reduce or eliminate any Actual Award otherwise payable. 
 5. Plan Administration. 

(a) Committee is the Administrator. The Plan will be administered by the Committee. The Committee will consist of not less than two
(2) members of the Board. The members of the Committee will be appointed from time to time by, and serve at the pleasure of, the Board. 

(b) Committee Authority. It will be the duty of the Committee to administer the Plan in accordance with the Plan’s provisions. The
Committee will have all powers and discretion necessary or appropriate to administer the Plan and to control its operation, including, but not limited to, the power to (i) determine which Employees will be granted awards, (ii) prescribe
the terms and conditions of awards, (iii) interpret the Plan and the awards, (iv) adopt such procedures and sub-plans as are necessary or appropriate to permit participation in the Plan by Employees
who are foreign nationals or employed outside of the United States, (v) adopt rules for the administration, interpretation and application of the Plan as are consistent therewith, and (vi) interpret, amend or revoke any such rules. 

(c) Decisions Binding. All determinations and decisions made by the Committee, the Board, and any delegate of the Committee pursuant to
the provisions of the Plan will be final, conclusive, and binding on all persons, and will be given the maximum deference permitted by law. 

(d) Delegation by Committee. The Committee, in its sole discretion and on such terms and conditions as it may provide, may delegate all
or part of its authority and powers under the Plan to one or more directors and/or officers of the Company. 
 (e)
Indemnification. Each person who is or will have been a member of the Committee will be indemnified and held harmless by the Company against and from (i) any loss, cost, liability, or expense that may be imposed upon or reasonably
incurred by him or her in connection with or resulting from any claim, action, suit, or proceeding to which he or she may be a party or in which he or she may be involved by reason of any action taken or failure to act under the Plan or any award,
and (ii) from any and all amounts paid by him or her in settlement thereof, with the Company’s approval, or paid by him or her in satisfaction of any judgment in any such claim, action, suit, or proceeding against him or her, provided he
or she will give the Company an opportunity, at its own expense, to handle and defend the same before he or she undertakes to handle and defend it on his or her own behalf. The foregoing right of indemnification will not be exclusive of any other
rights of indemnification to which such persons may be entitled under the Company’s Certificate of Incorporation or Bylaws, by contract, as a matter of law, or otherwise, or under any power that the Company may have to indemnify them or hold
them harmless. 

  
 -4- 

 6. General Provisions. 

(a) Tax Withholding. The Company will withhold all applicable taxes from any Actual Award, including any federal, state and local taxes
(including, but not limited to, the Participant’s FICA and SDI obligations). 
 (b) No Effect on Employment or Service. Nothing
in the Plan will interfere with or limit in any way the right of the Company to terminate any Participant’s employment or service at any time, with or without cause. Employment with the Company and its Affiliates is on an at-will basis only. For purposes of the Plan, transfer of employment of a Participant between the Company and any one of its Affiliates (or between Affiliates) will not be deemed a termination of employment. The
Company expressly reserves the right, which may be exercised at any time and without regard to when during a Performance Period such exercise occurs, to terminate any individual’s employment with or without cause, and to treat him or her
without regard to the effect that such treatment might have upon him or her as a Participant. 
 (c) Participation. No Employee will
have the right to be selected to receive an award under this Plan, or, having been so selected, to be selected to receive a future award. 

(d) Successors. All obligations of the Company under the Plan, with respect to awards granted hereunder, will be binding on any
successor to the Company, whether the existence of such successor is the result of a direct or indirect purchase, merger, consolidation, or otherwise, of all or substantially all of the business or assets of the Company. 

(e) Nontransferability of Awards. No award granted under the Plan may be sold, transferred, pledged, assigned, or otherwise alienated
or hypothecated, other than by will, by the laws of descent and distribution, or to the limited extent provided in Section 6(e). All rights with respect to an award granted to a Participant will be available during his or her lifetime only to
the Participant. 
 7. Amendment, Termination, and Duration. 

(a) Amendment, Suspension, or Termination. The Board and/or the Committee, in its sole discretion, may amend or terminate the Plan, or
any part thereof, at any time and for any reason. The amendment, suspension or termination of the Plan will not, without the consent of the Participant, alter or impair any rights or obligations under any Actual Award theretofore earned by such
Participant. No award may be granted during any period of suspension or after termination of the Plan. 

  
 -5- 

 (b) Duration of Plan. The Plan will commence on the date first adopted and/or ratified by
the Board or the Compensation Committee of the Board, and subject to Section 7(a) (regarding the Board and/or the Committee’s right to amend or terminate the Plan), will remain in effect thereafter. 

8. Legal Construction. 

(a) Gender and Number. Except where otherwise indicated by the context, any masculine term used herein also will include the feminine;
the plural will include the singular and the singular will include the plural. 
 (b) Severability. In the event any provision of the
Plan will be held illegal or invalid for any reason, the illegality or invalidity will not affect the remaining parts of the Plan, and the Plan will be construed and enforced as if the illegal or invalid provision had not been included. 

(c) Requirements of Law. The granting of awards under the Plan will be subject to all applicable laws, rules and regulations, and to
such approvals by any governmental agencies or national securities exchanges as may be required. 
 (d) Governing Law. The Plan and
all awards will be construed in accordance with and governed by the laws of the State of California, but without regard to its conflict of law provisions. 

(e) Bonus Plan. The Plan is intended to be a “bonus program” as defined under U.S. Department of Labor regulation 2510.3-2(c) and will be construed and administered in accordance with such intention. 
 (f)
Captions. Captions are provided herein for convenience only, and will not serve as a basis for interpretation or construction of the Plan. 

  
 -6-

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