EX-10.5



 Exhibit 10.5 

DROPBOX, INC. 
 2018
CLASS C EMPLOYEE STOCK PURCHASE PLAN 
 1.    Purpose. The purpose of the Plan is to provide employees of the
Company and its Designated Companies with an opportunity to purchase Common Stock through accumulated Contributions. The Company intends for the Plan to have two components: a component that is intended to qualify as an “employee stock purchase
plan” under Section 423 of the Code (the “423 Component”) and a component that is not intended to qualify as an “employee stock purchase plan” under Section 423 of the Code (the
“Non-423 Component”). The provisions of the 423 Component, accordingly, will be construed so as to extend and limit Plan participation in a uniform and nondiscriminatory basis consistent with
the requirements of Section 423 of the Code. An option to purchase shares of Common Stock under the Non-423 Component will be granted pursuant to rules, procedures, or
sub-plans adopted by the Administrator designed to achieve tax, securities laws, or other objectives for Eligible Employees and the Company. Except as otherwise provided herein, the Non-423 Component will operate and be administered in the same manner as the 423 Component. 

2.    Definitions. 

(a)    “Administrator” means the Board or any Committee designated by the Board to administer the Plan
pursuant to Section 14. 
 (b)    “Affiliate” means any entity, other than a Subsidiary, in which
the Company has an equity or other ownership interest. 
 (c)    “Applicable Laws” means the
requirements relating to the administration of equity-based awards under U.S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the
applicable laws of any foreign country or jurisdiction where options are, or will be, granted under the Plan. 

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

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

(i)    A change in the ownership of the Company which occurs on the date that any one person, or more than one person
acting as a group (“Person”), acquires ownership of the stock of the Company that, together with the stock held by such Person, constitutes more than fifty percent (50%) of the total voting power of the stock of the Company;
provided, however, that for purposes of this subsection, the acquisition of additional stock by any one Person, who is considered to own more than fifty percent (50%) of the total voting power of the stock of the Company will not be considered a
Change in Control. Further, if the stockholders of the Company immediately before such change in ownership continue to retain immediately after the change in ownership, in substantially the same proportions as their ownership of shares of the
Company’s voting stock immediately prior to the change in ownership, direct or indirect beneficial ownership of fifty percent (50%) or more of the total voting power of the stock of the Company or of the ultimate parent entity








 
of the Company, such event shall not be considered a Change in Control under this subsection (i). For this purpose, indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting securities of one or more corporations or other business entities which own the Company, as the case may be, either directly or through one or more subsidiary corporations or other business entities; or 

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

(iii)    A change in the ownership of a substantial portion of the Company’s assets which occurs on the date that
any Person acquires (or has acquired during the twelve (12)-month period ending on the date of the most recent acquisition by such person or persons) assets from the Company that have a total gross fair
market value equal to or more than fifty percent (50%) of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions; provided, however, that for purposes of this subsection, the
following will not constitute a change in the ownership of a substantial portion of the Company’s assets: (A) a transfer to an entity that is controlled by the Company’s stockholders immediately after the transfer, or (B) a
transfer of assets by the Company to: (1) a stockholder of the Company (immediately before the asset transfer) in exchange for or with respect to the Company’s stock, (2) an entity, fifty percent (50%) or more of the total value or
voting power of which is owned, directly or indirectly, by the Company, (3) a Person, that owns, directly or indirectly, fifty percent (50%) or more of the total value or voting power of all the outstanding stock of the Company, or (4) an
entity, at least fifty percent (50%) of the total value or voting power of which is owned, directly or indirectly, by a Person described in this subsection (iii)(B)(3). For purposes of this subsection, 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 definition, persons will be considered to be acting as a group if they are owners of a corporation that enters into a
merger, consolidation, purchase, or acquisition of stock, or similar business transaction with the Company. 
 Notwithstanding the
foregoing, a transaction will not be deemed a Change in Control unless the transaction qualifies as a change in control event within the meaning of Code Section 409A, as it has been and may be amended from time to time, and any proposed or
final U.S. Treasury Regulations and Internal Revenue Service guidance that has been promulgated or may be promulgated thereunder from time to time. 

Further and for the avoidance of doubt, a transaction will not constitute a Change in Control if: (i) its sole purpose is to change the
state of the Company’s incorporation, or (ii) its sole purpose is to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities immediately before such
transaction. 

  
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 (f)    “Code” means the U.S. Internal Revenue Code of 1986,
as amended. Reference to a specific section of the Code will include such section, any valid regulation or other official applicable guidance promulgated under such section, and any comparable provision of any future legislation or regulation
amending, supplementing or superseding such section or regulation. 
 (g)    “Committee” means a
committee of the Board appointed in accordance with Section 14 hereof. 
 (h)    “Common Stock”
means the Class C common stock of the Company. 
 (i)    “Company” means Dropbox, Inc., a Delaware
corporation, or any successor thereto.  
 (j)    “Compensation” includes an Eligible
Employee’s base straight time gross earnings but excludes payments for incentive compensation, bonuses, payments for overtime and shift premium, equity compensation income and other similar compensation. The Administrator, in its discretion,
may, on a uniform and nondiscriminatory basis, establish a different definition of Compensation for a subsequent Offering Period. 

(k)    “Contributions” means the payroll deductions and other additional payments that the Company may
permit to be made by a Participant to fund the exercise of options granted pursuant to the Plan. 

(l)    “Designated Company” means any Subsidiary or Affiliate of the Company that has been designated by
the Administrator from time to time in its sole discretion as eligible to participate in the Plan. For purposes of the 423 Component, only the Company and its Subsidiaries may be Designated Companies, provided, however that at any given time, a
Subsidiary that is a Designated Company under the 423 Component will not be a Designated Company under the Non-423 Component. 

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

(n)    “Eligible Employee” means any individual who is a common law employee providing services to the
Company or a Designated Company and is customarily employed for at least twenty (20) hours per week and more than five (5) months in any calendar year by the Employer, or any lesser number of hours per week and/or number of months in any
calendar year established by the Administrator (if required under applicable local law) for purposes of any separate Offering or the Non-423 Component. For purposes of the Plan, the employment relationship
will be treated as continuing intact while the individual is on sick leave or other leave of absence that the Employer approves or is legally protected under Applicable Laws. Where the period of leave exceeds three (3) months and the
individual’s right to reemployment is not guaranteed either by statute or by contract, the employment relationship will be deemed to have terminated three (3) months and one (1) day following the commencement of such leave. The
Administrator, in its discretion, from time to time may, prior to an Enrollment Date for all options to be granted on such Enrollment Date in an Offering, determine (on a uniform and nondiscriminatory basis or as otherwise permitted by Treasury
Regulation Section 1.423-2) that the definition of Eligible Employee will or will not include an individual if he or she: (i) has not completed at least two (2) years of service since his or her
last hire date (or such lesser period of time as may be determined by 

  
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the Administrator in its discretion), (ii) customarily works not more than twenty (20) hours per week (or such lesser period of time as may be determined by the Administrator in its
discretion), (iii) customarily works not more than five (5) months per calendar year (or such lesser period of time as may be determined by the Administrator in its discretion), (iv) is a highly compensated employee within the meaning of
Section 414(q) of the Code, or (v) is a highly compensated employee within the meaning of Section 414(q) of the Code with compensation above a certain level or is an officer or subject to the disclosure requirements of
Section 16(a) of the Exchange Act, provided the exclusion is applied with respect to each Offering in an identical manner to all highly compensated individuals of the Employer whose Eligible Employees are participating in that Offering. Each
exclusion will be applied with respect to an Offering in a manner complying with U.S. Treasury Regulation Section 1.423-2(e)(2)(ii). 

(o)    “Employer” means the employer of the applicable Eligible Employee(s). 

(p)    “Enrollment Date” means the first Trading Day of an Offering Period. 

(q)    “Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended, including the rules and
regulations promulgated thereunder. 
 (r)    “Exercise Date” means a date on which each outstanding
option granted under the Plan will be exercised (except if the Plan has been terminated), as may be determined by the Administrator, in its discretion and on a uniform and nondiscriminatory basis from time to time prior to an Enrollment Date for all
options to be granted on such Enrollment Date. For purposes of clarification, there may be multiple Exercise Dates during an Offering Period. 

(s)    “Fair Market Value” means, as of any date, the value of a share of Common Stock determined as
follows: 
 (i)    the Fair Market Value will be the closing sales price for Common Stock as quoted on any established
stock exchange or national market system (including without limitation the New York Stock Exchange, NASDAQ Global Select Market, the NASDAQ Global Market or the NASDAQ Capital Market of The NASDAQ Stock Market) on which the Common Stock is listed on
the date of determination (or the closing bid, if no sales were reported), as reported in The Wall Street Journal or such other source as the Administrator deems reliable. If the determination date for the Fair Market Value occurs on a non-trading day (i.e., a weekend or holiday), the Fair Market Value will be such price on the immediately preceding trading day, unless otherwise determined by the Administrator. In the absence of an established
market for the Common Stock, the Fair Market Value thereof will be determined in good faith by the Administrator. 
 The determination of
fair market value for purposes of tax withholding may be made in the Administrator’s discretion subject to Applicable Laws and is not required to be consistent with the determination of Fair Market Value for other purposes. 

(ii)    In the absence of an established market for the Common Stock, the Fair Market Value thereof will be determined in
good faith by the Administrator. 
 (t)    “Fiscal Year” means a fiscal year of the Company. 

  
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 (u)    “New Exercise Date” means a new Exercise Date if the
Administrator shortens any Offering Period then in progress. 
 (v)    “Offering” means an offer under
the Plan of an option that may be exercised during an Offering Period as further described in Section 4. For purposes of the Plan, the Administrator may designate separate Offerings under the Plan (the terms of which need not be identical) in
which Eligible Employees of one or more Employers will participate, even if the dates of the applicable Offering Periods of each such Offering are identical and the provisions of the Plan will separately apply to each Offering. To the extent
permitted by U.S. Treasury Regulation Section 1.423-2(a)(1), the terms of each Offering need not be identical provided that the terms of the Plan and an Offering together satisfy U.S. Treasury Regulation Section 1.423-2(a)(2) and (a)(3). 
 (w)    “Offering Period”
means a period beginning on such date as may be determined by the Administrator in its discretion and ending on such Exercise Date as may be determined by the Administrator in its discretion, in each case on a uniform and nondiscriminatory basis.
The duration and timing of Offering Periods may be changed pursuant to Sections 4, 20, and 30. 

(x)    “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in
Section 424(e) of the Code. 
 (y)    “Participant” means an Eligible Employee that participates
in the Plan. 
 (z)    “Plan” means this Dropbox, Inc. 2018 Class C Employee Stock Purchase Plan.

 (aa)     “Purchase Period” means the period, as determined by the Administrator in its discretion on
a uniform and nondiscriminatory basis, during an Offering Period that commences on the Offering Period’s Enrollment Date and ends on the next Exercise Date, except that if the Administrator determines that more than one Purchase Period should
occur within an Offering Period, subsequent Purchase Periods within such Offering Period commence after one Exercise Date and end with the next Exercise Date at such time or times as the Administrator determines prior to the commencement of the
Offering Period. 
 (bb)    “Purchase Price” means the price per Share of the Shares purchased under
any option granted under the Plan as determined by the Administrator from time to time, in its discretion and on a uniform and nondiscriminatory basis for all options to be granted on an Enrollment Date. However, in no event will the Purchase Price
be less than eighty-five percent (85%) of the lower of the Fair Market Value of a share of Common Stock on the Enrollment Date or the Fair Market Value of a share of Common Stock on the Exercise Date and at all times in compliance with
Section 423 of the Code (or any successor rule or provision or any other Applicable Law, regulation or stock exchange rule). 

(cc)    “Subsidiary” means a “subsidiary corporation,” whether now or hereafter existing, as
defined in Section 424(f) of the Code. 
 (dd)    “Trading Day” means a day on which the national
stock exchange upon which the Common Stock is listed is open for trading. 

  
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 (ee)    “U.S. Treasury Regulations” means the Treasury
regulations of the Code. Reference to a specific Treasury Regulation will include such Treasury Regulation, the section of the Code under which such regulation was promulgated, and any comparable provision of any future legislation or regulation
amending, supplementing, or superseding such Section or regulation. 
 3.    Eligibility. 

(a)    Offering Periods. Any Eligible Employee on a given Enrollment Date will be eligible to participate in the
Plan, subject to the requirements of Section 5. 
 (b)    Non-U.S.
Employees. Eligible Employees who are citizens or residents of a non-U.S. jurisdiction (without regard to whether they also are citizens or residents of the United States or resident aliens (within the
meaning of Section 7701(b)(1)(A) of the Code)) may be excluded from participation in the Plan or an Offering if the participation of such Eligible Employees is prohibited under the laws of the applicable jurisdiction or if complying with the
laws of the applicable jurisdiction would cause the Plan or an Offering to violate Section 423 of the Code. In the case of the Non-423 Component, Eligible Employees may be excluded from participation in
the Plan or an Offering if the Administrator determines that participation of such Eligible Employees is not advisable or practicable. 

(c)    Limitations. Any provisions of the Plan to the contrary notwithstanding, no Eligible Employee will be
granted an option under the Plan (i) to the extent that, immediately after the grant, such Eligible Employee (or any other person whose stock would be attributed to such Eligible Employee pursuant to Section 424(d) of the Code) would own
capital stock of the Company or any Parent or Subsidiary of the Company and/or hold outstanding options to purchase such stock possessing five percent (5%) or more of the total combined voting power or value of all classes of the capital stock of
the Company or of any Parent or Subsidiary of the Company, or (ii) to the extent that his or her rights to purchase stock under all employee stock purchase plans (as defined in Section 423 of the Code) of the Company or any Parent or
Subsidiary of the Company accrues at a rate, which exceeds twenty-five thousand dollars ($25,000) worth of stock (determined at the Fair Market Value of the stock at the time such option is granted) for each calendar year in which such option is
outstanding at any time, as determined in accordance with Section 423 of the Code and the regulations thereunder. 

4.    Offering Periods. Offering Periods will expire on the earliest to occur of (i) the completion of the
purchase of Shares on the last Exercise Date occurring within twenty-seven (27) months of the applicable Enrollment Date on which the option to purchase Shares was granted, or (ii) such shorter period as may be established by the
Administrator from time to time, in its discretion and on a uniform and nondiscriminatory basis, prior to an Enrollment Date for all options to be granted on such Enrollment Date. 

  
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 5.    Participation. An Eligible Employee may participate in the Plan
by (i) submitting to the Company’s stock administration office (or its designee) a properly completed subscription agreement authorizing Contributions in the form provided by the Administrator for such purpose or (ii) following an
electronic or other enrollment procedure determined by the Administrator, in either case on or before a date determined by the Administrator prior to an applicable Enrollment Date. 

6.    Contributions. 

(a)    At the time a Participant enrolls in the Plan pursuant to Section 5, he or she will elect to have Contributions
(in the form of payroll deductions or otherwise, to the extent permitted by the Administrator) made on each pay day during the Offering Period in an amount that the Administrator may establish from time to time, in its discretion and on a uniform
and nondiscriminatory basis, for all options to be granted on any Enrollment Date. The Administrator, in its sole discretion, may permit all Participants in a specified Offering to contribute amounts to the Plan through payment by cash, check or
other means set forth in the subscription agreement prior to each Exercise Date of each Purchase Period. A Participant’s subscription agreement will remain in effect for successive Offering Periods unless terminated as provided in
Section 10 hereof. 
 (b)    In the event Contributions are made in the form of payroll deductions, such payroll
deductions for a Participant will commence on the first pay day following the Enrollment Date and will end on the last pay day on or prior to the last Exercise Date of such Offering Period to which such authorization is applicable, unless sooner
terminated by the Participant as provided in Section 10 hereof. 
 (c)    All Contributions made for a Participant
will be credited to his or her account under the Plan and Contributions will be made in whole percentages of his or her Compensation only. A Participant may not make any additional payments into such account. 

(d)    A Participant may discontinue his or her participation in the Plan as provided under Section 10. Except as may
be permitted by the Administrator, as determined in its sole discretion, a Participant may not change the rate of his or her Contributions during an Offering Period. 

(e)    Notwithstanding the foregoing, to the extent necessary to comply with Section 423(b)(8) of the Code and
Section 3(d), a Participant’s Contributions may be decreased to zero percent (0%) at any time during a Purchase Period. Subject to Section 423(b)(8) of the Code and Section 3(d) hereof, Contributions will recommence at the rate
originally elected by the Participant effective as of the beginning of the first Purchase Period scheduled to end in the following calendar year, unless terminated by the Participant as provided in Section 10. 

(f)    Notwithstanding any provisions to the contrary in the Plan, the Administrator may allow Participants to participate
in the Plan via cash contributions instead of payroll deductions if (i) payroll deductions are not permitted under applicable local law, (ii) the Administrator determines that cash contributions are permissible under Section 423 of
the Code; or (iii) the Participants are participating in the Non-423 Component. 

(g)    At the time the option is exercised, in whole or in part, or at the time some or all of the Common Stock issued
under the Plan is disposed of (or any other time that a taxable event 

  
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related to the Plan occurs), the Participant must make adequate provision for the Company’s or Employer’s federal, state, local or any other tax liability payable to any authority
including taxes imposed by jurisdictions outside of the U.S., national insurance, social security or other tax withholding obligations, if any, which arise upon the exercise of the option or the disposition of the Common Stock (or any other time
that a taxable event related to the Plan occurs). At any time, the Company or the Employer may, but will not be obligated to, withhold from the Participant’s compensation the amount necessary for the Company or the Employer to meet applicable
withholding obligations, including any withholding required to make available to the Company or the Employer any tax deductions or benefits attributable to sale or early disposition of Common Stock by the Eligible Employee. In addition, the Company
or the Employer may, but will not be obligated to, withhold from the proceeds of the sale of Common Stock or any other method of withholding the Company or the Employer deems appropriate to the extent permitted by U.S. Treasury Regulation Section 1.423-2(f). 
 7.    Grant of Option. On the Enrollment Date of
each Offering Period, each Eligible Employee participating in such Offering Period will be granted an option to purchase on each Exercise Date during such Offering Period (at the applicable Purchase Price) up to a number of shares of Common Stock
determined by dividing such Eligible Employee’s Contributions accumulated prior to such Exercise Date and retained in the Eligible Employee’s account as of the Exercise Date by the applicable Purchase Price; provided that in no event will
an Eligible Employee be permitted to purchase during each Purchase Period more than 2,500 shares of Common Stock (subject to any adjustment pursuant to Section 19) and provided further that such purchase will be subject to the limitations set
forth in Sections 3(d) and 13. The Eligible Employee may accept the grant of such option by electing to participate in the Plan in accordance with the requirements of Section 5. The Administrator may, for future Offering Periods, increase or
decrease, in its absolute discretion, the maximum number of shares of Common Stock that an Eligible Employee may purchase during each Purchase Period. Exercise of the option will occur as provided in Section 8, unless the Participant has
withdrawn pursuant to Section 10. The option will expire on the last day of the Offering Period. 

8.    Exercise of Option. 

(a)    Unless a Participant withdraws from the Plan as provided in Section 10, his or her option for the purchase of
shares of Common Stock will be exercised automatically on each Exercise Date, and the maximum number of full shares subject to the option will be purchased for such Participant at the applicable Purchase Price with the accumulated Contributions from
his or her account. No fractional shares of Common Stock will be purchased; any Contributions accumulated in a Participant’s account, which are not sufficient to purchase a full share will be retained in the Participant’s account for the
subsequent Purchase Period or Offering Period, subject to earlier withdrawal by the Participant as provided in Section 10. Any other funds left over in a Participant’s account after the Exercise Date will be returned to the Participant.
During a Participant’s lifetime, a Participant’s option to purchase shares hereunder is exercisable only by him or her. 

(b)    If the Administrator determines that, on a given Exercise Date, the number of shares of Common Stock with respect
to which options are to be exercised may exceed (i) the number of shares of Common Stock that were available for sale under the Plan on the Enrollment Date of the applicable Offering Period, or (ii) the number of shares of Common Stock
available for 

  
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sale under the Plan on such Exercise Date, the Administrator may in its sole discretion (x) provide that the Company will make a pro rata allocation of the shares of Common Stock available
for purchase on such Enrollment Date or Exercise Date, as applicable, in as uniform a manner as will be practicable and as it will determine in its sole discretion to be equitable among all Participants exercising options to purchase Common Stock on
such Exercise Date, and continue all Offering Periods then in effect or (y) provide that the Company will make a pro rata allocation of the shares of Common Stock available for purchase on such Enrollment Date or Exercise Date, as applicable,
in as uniform a manner as will be practicable and as it will determine in its sole discretion to be equitable among all participants exercising options to purchase Common Stock on such Exercise Date, and terminate any or all Offering Periods then in
effect pursuant to Section 20. The Company may make a pro rata allocation of the shares available on the Enrollment Date of any applicable Offering Period pursuant to the preceding sentence, notwithstanding any authorization of additional
shares for issuance under the Plan by the Company’s stockholders subsequent to such Enrollment Date. 

9.    Delivery. As soon as reasonably practicable after each Exercise Date on which a purchase of shares of Common
Stock occurs, the Company will arrange the delivery to each Participant of the shares purchased upon exercise of his or her option in a form determined by the Administrator (in its sole discretion) and pursuant to rules established by the
Administrator. The Company may permit or require that shares be deposited directly with a broker designated by the Company or to a designated agent of the Company, and the Company may utilize electronic or automated methods of share transfer. The
Company may require that shares be retained with such broker or agent for a designated period of time and/or may establish other procedures to permit tracking of disqualifying dispositions of such shares. No Participant will have any voting,
dividend, or other stockholder rights with respect to shares of Common Stock subject to any option granted under the Plan until such shares have been purchased and delivered to the Participant as provided in this Section 9. 

10.    Withdrawal. 

(a)    A Participant may withdraw all but not less than all the Contributions credited to his or her account and not yet
used to exercise his or her option under the Plan at any time by (i) submitting to the Company’s stock administration office (or its designee) a written notice of withdrawal in the form determined by the Administrator for such purpose
(which may be similar to the form attached hereto as Exhibit B), or (ii) following an electronic or other withdrawal procedure determined by the Administrator. All of the Participant’s Contributions credited to his or her account
will be paid to such Participant promptly after receipt of notice of withdrawal and such Participant’s option for the Offering Period will be automatically terminated, and no further Contributions for the purchase of shares will be made for
such Offering Period. If a Participant withdraws from an Offering Period, Contributions will not resume at the beginning of the succeeding Offering Period, unless the Participant re-enrolls in the Plan in
accordance with the provisions of Section 5. 
 (b)    A Participant’s withdrawal from an Offering Period will
not have any effect on his or her eligibility to participate in any similar plan that may hereafter be adopted by the Company or in succeeding Offering Periods that commence after the termination of the Offering Period from which the Participant
withdraws. 

  
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 11.    Termination of Employment. Upon a Participant’s ceasing to
be an Eligible Employee, for any reason, he or she will be deemed to have elected to withdraw from the Plan and the Contributions credited to such Participant’s account during the Offering Period but not yet used to purchase shares of Common
Stock under the Plan will be returned to such Participant or, in the case of his or her death, to the person or persons entitled thereto under Section 15, and such Participant’s option will be automatically terminated. Unless otherwise
provided by the Administrator, a Participant whose employment transfers between entities through a termination with an immediate rehire (with no break in service) by the Company or a Designated Company will not be treated as terminated under the
Plan; however, if a Participant transfers from an Offering under the 423 Component to the Non-423 Component, the exercise of the option will be qualified under the 423 Component only to the extent it complies
with Section 423 of the Code, unless otherwise provided by the Administrator. 
 12.    Interest. No
interest will accrue on the Contributions of a participant in the Plan, except as may be required by Applicable Law, as determined by the Company, and if so required by the laws of a particular jurisdiction, will apply to all Participants in the
relevant Offering under the 423 Component, except to the extent otherwise permitted by U.S. Treasury Regulation Section 1.423-2(f). 

13.    Stock. 

(a)    Subject to adjustment upon changes in capitalization of the Company as provided in Section 19 hereof, the
maximum number of shares of Common Stock that will be made available for sale under the Plan will be 4,136,832 shares of Common Stock. The number of shares of Common Stock available for issuance under the Plan will be increased on the first day of
each Fiscal Year beginning for the Fiscal Year following the Fiscal Year in which the first Enrollment Date (if any) occurs equal to the least of (i) 4,136,832 shares of Common Stock, (ii) 1.5% of the outstanding shares of all classes of the
Company’s common stock on the last day of the immediately preceding Fiscal Year, or (iii) an amount determined by the Administrator. 

(b)    Until the shares of Common Stock are issued (as evidenced by the appropriate entry on the books of the Company or
of a duly authorized transfer agent of the Company), a Participant will have only the rights of an unsecured creditor with respect to such shares, and no right to vote or receive dividends or any other rights as a stockholder will exist with respect
to such shares. 
 (c)    Shares of Common Stock to be delivered to a Participant under the Plan will be registered in
the name of the Participant or in the name of the Participant and his or her spouse. 

  
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 14.    Administration. The Plan will be administered by the Board or a
Committee appointed by the Board, which Committee will be constituted to comply with Applicable Laws. The Administrator will have full and exclusive discretionary authority to construe, interpret and apply the terms of the Plan, to delegate
ministerial duties to any of the Company’s employees, to designate separate Offerings under the Plan, to designate Subsidiaries and Affiliates of the Company as participating in the 423 Component or
Non-423 Component, to determine eligibility, to adjudicate all disputed claims filed under the Plan and to establish such procedures that it deems necessary for the administration of the Plan (including,
without limitation, to adopt such procedures and sub-plans as are necessary or appropriate to permit the participation in the Plan by employees who are foreign nationals or employed outside the U.S., the terms
of which sub-plans may take precedence over other provisions of this Plan, with the exception of Section 13(a) hereof, but unless otherwise superseded by the terms of such
sub-plan, the provisions of this Plan will govern the operation of such sub-plan). Unless otherwise determined by the Administrator, the Eligible Employees eligible to
participate in each sub-plan will participate in a separate Offering or in the Non-423 Component. Without limiting the generality of the foregoing, the Administrator is
specifically authorized to adopt rules and procedures regarding eligibility to participate, the definition of Compensation, handling of Contributions, making of Contributions to the Plan (including, without limitation, in forms other than payroll
deductions), establishment of bank or trust accounts to hold Contributions, payment of interest, conversion of local currency, obligations to pay payroll tax, determination of beneficiary designation requirements, withholding procedures and handling
of stock certificates that vary with applicable local requirements. The Administrator also is authorized to determine that, to the extent permitted by U.S. Treasury Regulation Section 1.423-2(f), the
terms of an option granted under the Plan or an Offering to citizens or residents of a non-U.S. jurisdiction will be less favorable than the terms of options granted under the Plan or the same Offering to
employees resident solely in the U.S. Every finding, decision, and determination made by the Administrator will, to the full extent permitted by law, be final and binding upon all parties. 

15.    Designation of Beneficiary. 

(a)    If permitted by the Administrator, a Participant may file a designation of a beneficiary who is to receive any
shares of Common Stock and cash, if any, from the Participant’s account under the Plan in the event of such Participant’s death subsequent to an Exercise Date on which the option is exercised but prior to delivery to such Participant of
such shares and cash. In addition, if permitted by the Administrator, a Participant may file a designation of a beneficiary who is to receive any cash from the Participant’s account under the Plan in the event of such Participant’s death
prior to exercise of the option. If a Participant is married and the designated beneficiary is not the spouse, spousal consent will be required for such designation to be effective. 

(b)    Such designation of beneficiary may be changed by the Participant at any time by notice in a form determined by the
Administrator. In the event of the death of a Participant and in the absence of a beneficiary validly designated under the Plan who is living at the time of such Participant’s death, the Company will deliver such shares and/or cash to the
executor or administrator of the estate of the Participant, or if no such executor or administrator has been appointed (to the knowledge of the Company), the Company, in its discretion, may deliver such shares and/or cash to the spouse or to any one
or more dependents or relatives of the Participant, or if no spouse, dependent or relative is known to the Company, then to such other person as the Company may designate. 

  
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 (c)    All beneficiary designations will be in such form and manner as the
Administrator may designate from time to time. Notwithstanding Sections 15(a) and (b) above, the Company and/or the Administrator may decide not to permit such designations by Participants in non-U.S.
jurisdictions to the extent permitted by U.S. Treasury Regulation Section 1.423-2(f). 

16.    Transferability. Neither Contributions credited to a Participant’s account nor any rights with regard
to the exercise of an option or to receive shares of Common Stock under the Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by will, the laws of descent and distribution or as provided in Section 15
hereof) by the Participant. Any such attempt at assignment, transfer, pledge or other disposition will be without effect, except that the Company may treat such act as an election to withdraw funds from an Offering Period in accordance with
Section 10 hereof. 
 17.    Use of Funds. The Company may use all Contributions received or held by it
under the Plan for any corporate purpose, and the Company will not be obligated to segregate such Contributions except under Offerings or for Participants in the Non-423 Component for which Applicable Laws
require that Contributions to the Plan by Participants be segregated from the Company’s general corporate funds and/or deposited with an independent third party. Until shares of Common Stock are issued, Participants will have only the rights of
an unsecured creditor with respect to such shares. 
 18.    Reports. Individual accounts will be maintained for
each Participant in the Plan. Statements of account will be given to participating Eligible Employees at least annually, which statements will set forth the amounts of Contributions, the Purchase Price, the number of shares of Common Stock purchased
and the remaining cash balance, if any. 
 19.    Adjustments, Dissolution, Liquidation, Merger, or Change in
Control. 
 (a)    Adjustments. In the event that any dividend or other distribution (whether in the form of
cash, Common Stock, other securities, or other property), recapitalization, stock split, reverse stock split, reorganization, merger, consolidation, split-up, spin-off,
combination, repurchase, or exchange of Common Stock or other securities of the Company, or other change in the corporate structure of the Company affecting the Common Stock occurs, the Administrator, in order to prevent dilution or enlargement of
the benefits or potential benefits intended to be made available under the Plan, will, in such manner as it may deem equitable, adjust the number and class of Common Stock that may be delivered under the Plan, the Purchase Price per share and the
number of shares of Common Stock covered by each option under the Plan that has not yet been exercised, and the numerical limits of Sections 7 and 13. 

(b)    Dissolution or Liquidation. In the event of the proposed dissolution or liquidation of the Company, any
Offering Period then in progress will be shortened by setting a New Exercise Date, and will terminate immediately prior to the consummation of such proposed dissolution or liquidation, unless provided otherwise by the Administrator. The New Exercise
Date will be before the date of the Company’s proposed dissolution or liquidation. The Administrator will notify each Participant in writing or electronically, prior to the New Exercise Date, that the Exercise Date for the Participant’s
option has been changed to the New Exercise Date and that the Participant’s option will be exercised automatically on the New Exercise Date, unless prior to such date the Participant has withdrawn from the Offering Period as provided in
Section 10 hereof. 

  
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 (c)    Merger or Change in Control. In the event of a merger or Change
in Control, each outstanding option will be assumed or an equivalent option substituted by the successor corporation or a Parent or Subsidiary of the successor corporation. In the event that the successor corporation refuses to assume or substitute
for the option, the Offering Period with respect to which such option relates will be shortened by setting a New Exercise Date on which such Offering Period will end. The New Exercise Date will occur before the date of the Company’s proposed
merger or Change in Control. The Administrator will notify each Participant in writing or electronically prior to the New Exercise Date, that the Exercise Date for the Participant’s option has been changed to the New Exercise Date and that the
Participant’s option will be exercised automatically on the New Exercise Date, unless prior to such date the Participant has withdrawn from the Offering Period as provided in Section 10 hereof. 

20.    Amendment or Termination. 

(a)    The Administrator, in its sole discretion, may amend, suspend, or terminate the Plan, or any part thereof, at any
time and for any reason. If the Plan is terminated, the Administrator, in its discretion, may elect to terminate all outstanding Offering Periods either immediately or upon completion of the purchase of shares of Common Stock on the next Exercise
Date (which may be sooner than originally scheduled, if determined by the Administrator in its discretion), or may elect to permit Offering Periods to expire in accordance with their terms (and subject to any adjustment pursuant to Section 19).
If the Offering Periods are terminated prior to expiration, all amounts then credited to Participants’ accounts that have not been used to purchase shares of Common Stock will be returned to the Participants (without interest thereon, except as
otherwise required under Applicable Laws, as further set forth in Section 12 hereof) as soon as administratively practicable. 

(b)    Without stockholder consent and without limiting Section 20(a), the Administrator will be entitled to change
the Offering Periods or Purchase Periods, designate separate Offerings, limit the frequency and/or number of changes in the amount withheld during an Offering Period, establish the exchange ratio applicable to amounts withheld in a currency other
than U.S. dollars, permit Contributions in excess of the amount designated by a Participant in order to adjust for delays or mistakes in the Company’s processing of properly completed Contribution elections, establish reasonable waiting and
adjustment periods and/or accounting and crediting procedures to ensure that amounts applied toward the purchase of Common Stock for each Participant properly correspond with Contribution amounts, and establish such other limitations or procedures
as the Administrator determines in its sole discretion advisable that are consistent with the Plan. 
 (c)    In the
event the Administrator determines that the ongoing operation of the Plan may result in unfavorable financial accounting consequences, the Administrator may, in its 

  
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discretion and, to the extent necessary or desirable, modify, amend or terminate the Plan to reduce or eliminate such accounting consequence including, but not limited to: 

(i)    amending the Plan to conform with the safe harbor definition under the Financial Accounting Standards Board
Accounting Standards Codification Topic 718 (or any successor thereto), including with respect to an Offering Period underway at the time; 

(ii)    altering the Purchase Price for any Offering Period or Purchase Period including an Offering Period or Purchase
Period underway at the time of the change in Purchase Price; 
 (iii)    shortening any Offering Period or Purchase
Period by setting a New Exercise Date, including an Offering Period or Purchase Period underway at the time of the Administrator action; 

(iv)    reducing the maximum percentage of Compensation a Participant may elect to set aside as Contributions; and 

(v)    reducing the maximum number of shares of Common Stock a Participant may purchase during any Offering Period or
Purchase Period. 
 Such modifications or amendments will not require stockholder approval or the consent of any Participants. 

21.    Notices. All notices or other communications by a Participant to the Company under or in connection with the
Plan will be deemed to have been duly given when received in the form and manner specified by the Company at the location, or by the person, designated by the Company for the receipt thereof. 

22.    Conditions Upon Issuance of Shares. Shares of Common Stock will not be issued with respect to an option
unless the exercise of such option and the issuance and delivery of such shares pursuant thereto will comply with all applicable provisions of law, domestic or foreign, including, without limitation, the U.S. Securities Act of 1933, as amended, the
Exchange Act, the rules and regulations promulgated thereunder, and the requirements of any stock exchange upon which the shares may then be listed, and will be further subject to the approval of counsel for the Company with respect to such
compliance. 
 As a condition to the exercise of an option, the Company may require the person exercising such option to represent and
warrant at the time of any such exercise that the shares are being purchased only for investment and without any present intention to sell or distribute such shares if, in the opinion of counsel for the Company, such a representation is required by
any of the aforementioned applicable provisions of law. 
 23.    Code Section 409A. The 423
Component of the Plan is exempt from the application of Code Section 409A and any ambiguities herein will be interpreted to so be exempt from Code Section 409A. In furtherance of the foregoing and notwithstanding any provision in the Plan
to the contrary, if the Administrator determines that an option granted under the Plan may be subject to Code Section 409A or that any provision in the Plan would cause an option under the Plan to be subject to Code Section 409A, the
Administrator may amend the terms of the Plan and/or of an outstanding option granted under the Plan, or take such other action the Administrator determines is necessary or appropriate, in each case, without the Participant’s consent, to exempt
any outstanding 

  
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option or future option that may be granted under the Plan from or to allow any such options to comply with Code Section 409A, but only to the extent any such amendments or action by the
Administrator would not violate Code Section 409A. Notwithstanding the foregoing, the Company will have no liability to a Participant or any other party if the option to purchase Common Stock under the Plan that is intended to be exempt from or
compliant with Code Section 409A is not so exempt or compliant or for any action taken by the Administrator with respect thereto. The Company makes no representation that the option to purchase Common Stock under the Plan is compliant with Code
Section 409A. 
 24.    Term of Plan. The Plan will become effective upon the later to occur of (i) its
adoption by the Board or (ii) the business day immediately prior to the Registration Date. It will continue in effect for a term of twenty (20) years, unless sooner terminated under Section 20. 

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

26.    Governing Law. The Plan will be governed by, and construed in accordance with, the laws of the State of
Delaware (except its choice-of-law provisions). 

27.    No Right to Employment. Participation in the Plan by a Participant will not be construed as giving a
Participant the right to be retained as an employee of the Company or a Subsidiary or Affiliate of the Company, as applicable. Further, the Company or a Subsidiary or Affiliate of the Company may dismiss a Participant from employment at any time,
free from any liability or any claim under the Plan. 
 28.    Severability. If any provision of the Plan is or
becomes or is deemed to be invalid, illegal, or unenforceable for any reason in any jurisdiction or as to any Participant, such invalidity, illegality or unenforceability will not affect the remaining parts of the Plan, and the Plan will be
construed and enforced as to such jurisdiction or Participant as if the invalid, illegal or unenforceable provision had not been included. 

29.    Compliance with Applicable Laws. The terms of this Plan are intended to comply with all Applicable Laws and
will be construed accordingly. 
 30.    Automatic Transfer to Low Price Offering Period. To the extent permitted
by Applicable Laws, if the Fair Market Value on any Exercise Date in an Offering Period is lower than the Fair Market Value on the Enrollment Date of such Offering Period, then all Participants in such Offering Period automatically will be withdrawn
from such Offering Period immediately after the exercise of their option on such Exercise Date and automatically re-enrolled in the immediately following Offering Period as of the first day thereof. 

  
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 EXHIBIT A 

DROPBOX, INC. 
 2018
CLASS C EMPLOYEE STOCK PURCHASE PLAN 
 SUBSCRIPTION AGREEMENT 

 

			
	          Original Application
	  	 Offering Date:
                                         
                       

	         Change in Payroll Deduction Rate	  	

 1.    
                     (“Employee”) hereby elects to participate in the Dropbox, Inc. 2018 Class C Employee Stock Purchase Plan
(the “Plan”) and subscribes to purchase shares of the Company’s Common Stock in accordance with this Subscription Agreement and the Plan. Unless otherwise defined herein, the terms defined in the 2018 Class C Employee Stock
Purchase Plan (the “Plan”) shall have the same defined meanings in this Subscription Agreement. 

2.    Employee hereby authorizes payroll deductions from each paycheck in the amount of     %
(from 1% to 15%) of his or her Compensation on each payday during the Offering Period in accordance with the Plan. (Please note that no fractional percentages are permitted.) 

3.    Employee understands that said payroll deductions will be accumulated for the purchase of shares of Common Stock at
the applicable Purchase Price determined in accordance with the Plan. Employee understands that if he or she does not withdraw from an Offering Period, any accumulated payroll deductions will be used to automatically exercise his or her option and
purchase Common Stock under the Plan. 
 4.    Employee has received a copy of the complete Plan and its accompanying
prospectus. Employee understands that his or her participation in the Plan is in all respects subject to the terms of the Plan. 

5.    Shares of Common Stock purchased by Employee under the Plan should be issued in the name(s) of
                     (Employee or Employee and Spouse only). 

6.    Employee understands that if he or she disposes of any shares that he or she purchased under the Plan within
two (2) years after the Enrollment Date (the first day of the Offering Period during which he or she purchased such shares) or one (1) year after the applicable Exercise Date, he or she will be treated for federal income tax purposes as
having received ordinary income at the time of such disposition in an amount equal to the excess of the fair market value of the shares at the time such shares were purchased over the price paid for the shares. Employee hereby agrees to notify
the Company in writing within thirty (30) days after the date of any disposition of such shares and to make adequate provision for federal, state or other tax withholding obligations, if any, that arise upon the disposition of
such shares. The Company may, but will not be obligated to, withhold from Employee’s compensation the amount necessary to meet any applicable withholding obligation including any withholding necessary to make available to the Company any
tax deductions or benefits attributable to Employee’s sale or early disposition of such shares. Employee understands 

  
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that if he or she disposes of such shares at any time after the expiration of the two (2)-year and one-(1) year holding periods, he or she will
be treated for federal income tax purposes as having received income only at the time of such disposition, and that such income will be taxed as ordinary income only to the extent of an amount equal to the lesser of (i) the excess of the fair
market value of the shares at the time of such disposition over the purchase price paid for the shares, or (ii) fifteen percent (15%) of the fair market value of the shares on the first day of the Offering Period. The remainder of the gain, if
any, recognized on such disposition will be taxed as capital gain. 
 7.    Employee hereby agrees to be bound by the
terms of the Plan. The effectiveness of this Subscription Agreement is dependent upon Employee’s eligibility to participate in the Plan. 
  

			
	Employee’s Social	 	
	Security Number:	 	
                     


		
	Employee’s Address:	 	
                     


		
		 	
                     


		
		 	
                     



 EMPLOYEE UNDERSTANDS THAT THIS SUBSCRIPTION AGREEMENT WILL REMAIN IN EFFECT THROUGHOUT SUCCESSIVE OFFERING
PERIODS UNLESS TERMINATED BY EMPLOYEE. 
  

					
	
Dated:                  
                                         
                              
	 		 	  

		 		 	 Signature of Employee



  
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 EXHIBIT B 

DROPBOX, INC. 
 2018
CLASS C EMPLOYEE STOCK PURCHASE PLAN 
 NOTICE OF WITHDRAWAL 

Unless otherwise defined herein, the terms defined in the 2018 Class C Employee Stock Purchase Plan (the “Plan”) shall have the
same defined meanings in this Notice of Withdrawal. 
 The undersigned Participant in the Offering Period of the Dropbox, Inc. 2018
Class C Employee Stock Purchase Plan that began on                     ,          (the
“Offering Date”) hereby notifies the Company that he or she hereby withdraws from the Offering Period. He or she hereby directs the Company to pay to the undersigned as promptly as practicable all the payroll deductions credited to his or
her account with respect to such Offering Period. The undersigned understands and agrees that his or her option for such Offering Period will be terminated automatically. The undersigned understands further that no further payroll deductions will be
made for the purchase of shares in the current Offering Period and the undersigned will be eligible to participate in succeeding Offering Periods only by delivering to the Company a new Subscription Agreement. 

 

	
	Name and Address of Participant:
	
	  

	
	  

	
	  

	
	Signature:
	
	  

	
	Date:                                     
                                         
 



  
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