Document:

EX-4.2

 Exhibit 4.2 

TENABLE HOLDINGS, INC. 

INVESTORS’ RIGHTS AGREEMENT 

THIS INVESTORS’ RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of December 18, 2015, by and among
Tenable Holdings, Inc., a Delaware corporation (the “Company”), each of the entities identified on Schedule A attached hereto (the “Institutional Investors”) and the Founder Owners (together with the
Institutional Investors, the “Investors”). The Company and each of the Investors are a “party” and collectively are the “parties.” 

WHEREAS, the Investors are parties to the Series B Preferred Stock Purchase Agreement of even date herewith, as the same may be amended from
time to time (the “Purchase Agreement”), among the Company and the Investors listed on Schedule A thereto, and it is a condition to the closing of the sale of the Series B Preferred Stock to such Investors that the Investors and the
Company execute and deliver this Agreement. 
 NOW, THEREFORE, in consideration of the foregoing and the mutual promises and covenants set
forth in this Agreement, the parties hereto agree as follows:  
 1. Restrictions on Transferability of Securities; Registration
Rights. 
 1.1 Certain Definitions. As used in this Agreement, the following terms shall have the meanings set forth below: 

(a) “Accel” shall mean Accel Growth Fund II L.P., Accel Growth Fund II Strategic Partners L.P., Accel Growth Fund Investors
2012 L.L.C., Accel Growth Fund III L.P., Accel Growth Fund III Strategic Partners L.P. Accel Growth Fund Investors 2014, L.L.C., Accel XI L.P., Accel XI Strategic Partners L.P. and Accel Investors 2013 L.L.C. 

(b) “Affiliate” shall mean, with respect to any specified individual, firm, corporation, partnership, association, limited
liability company, trust or other entity, any other individual, firm, corporation, partnership, association, limited liability company, trust or any other entity that, directly or indirectly, controls, is controlled by or is under common control
with such person, including, without limitation, any general partner, managing member, officer or director of such person or any venture capital fund now or hereafter existing that is controlled by one or more general partners or managing members
of, or shares the same general partner or management company with, such person. 
 (c) “Closing” shall mean the date of
the initial sale of shares of the Company’s Series B Preferred Stock. 
 (d) “Code” shall mean the Internal Revenue
Code of 1986, as amended. 
 (e) “Commission” shall mean the Securities and Exchange Commission or any other federal
agency at the time administering the Securities Act. 

  
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 (f) “Common Stock” shall mean the Company’s common stock, par value $0.01
per share. 
 (g) “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended, or any similar successor
federal statute and the rules and regulations thereunder, all as the same shall be in effect from time to time. 
 (h) “Family
Member” means a child, stepchild, grandchild, parent, stepparent, grandparent, spouse, domestic partner, sibling, mother-in-law,
father-in-law, son-in-law, daughter-in-law, brother-in-law or
sister-in-law, including adoptive relationships. 
 (i)
“Founder Owners” means any or all of Ronald J. Gula, Renaud Deraison, The Three Suns Irrevocable Trust Dated March 2, 2012, Mary Kathryn Braden Huffard, The Polish Lilac Trust Dated December 27, 2011, The Ronald J. Gula
2013 Grantor Retained Annuity Trust Dated November 22, 2013, The Ronald J. Gula 2015 Grantor Retained Annuity Trust #4 Dated March 31, 2015, The Ronald J. Gula 2012 Grantor Retained Annuity Trust, The Renaud Deraison 2013 Grantor Retained
Annuity Trust Dated April 5, 2013, The Cynthia Y. Gula 2013 Grantor Retained Annuity Trust Dated December 11, 2013, and The Cynthia Y. Gula 2015 Grantor Retained Annuity Trust #2 Dated March 31, 2015. 

(j) “Free Writing Prospectus” shall mean a free writing prospectus, as defined in Rule 405 under the Securities Act.

 (k) “Holder” shall mean any person or entity who holds Registrable Securities and any holder of Registrable Securities
to whom the registration rights conferred by this Agreement have been transferred in compliance with Sections 1.2 and 1.12 hereof. 
 (l)
“Initial Public Offering” shall mean the closing of the Company’s first firm commitment underwritten public offering of its Common Stock registered under the Securities Act. 

(m) “Initiating Holders” shall mean any Holder or Holders who in the aggregate hold not less than sixty percent (60%) of the
outstanding Registrable Securities. 
 (n) “Insight” shall mean Insight Venture Management, LLC and its affiliates. 

(o) “Institutional Holder” shall mean the Institutional Investors who hold Registrable Securities and any holder of
Registrable Securities to whom the registration rights conferred by this Agreement have been transferred by any Institutional Holder or their permitted transferees in compliance with Sections 1.2 and 1.12 hereof 

(p) “Major Holder” shall mean a Holder that holds, individually or together with such Holder’s Affiliates, at least
100,000 Shares, subject to subsequent adjustment for stock splits, stock dividends, reverse stock splits, recapitalizations and the like. 

(q) “Major Institutional Holder” shall mean an Institutional Holder that holds, individually or together with such
Institutional Holder’s Affiliates, at least 100,000 Shares, subject to subsequent adjustment for stock splits, stock dividends, reverse stock splits, recapitalizations and the like. 

  
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 (r) “Other Shares” shall mean shares of Common Stock of the Company (other than
Registrable Securities), including shares of Common Stock issued or issuable upon conversion of shares of any currently unissued series of preferred stock of the Company, with registration rights. 

(s) “Other Stockholders” shall mean persons other than Holders who, by virtue of agreements with the Company, are entitled
to include their securities in certain registrations hereunder. 
 (t) “Registrable Securities” shall mean (i) shares
of Common Stock issued or issuable pursuant to the conversion of the Shares, (ii) any Common Stock issued as (or issuable upon the conversion or exercise of any warrant, right or other security that is issued as) a dividend or other
distribution with respect to or in exchange for or in replacement of the shares referenced in clause (i) above, and (iii) all Common Stock owned or controlled by any and all Founder Owners; provided, however, that Registrable Securities
shall not include any shares of Common Stock which have been sold to the public either pursuant to a registration statement or Rule 144, which have been transferred in a transaction in which the transferor’s registration rights under this
Agreement are not assigned, or with respect to which the registration rights under this Agreement have terminated pursuant to Section 1.16 hereof. 

(u) “Register,” “registered” and “registration” shall refer to a registration effected by
preparing and filing a registration statement in compliance with the Securities Act and applicable rules and regulations thereunder, and the declaration or ordering of the effectiveness of such registration statement. 

(v) “Registration Expenses” shall mean all expenses incurred in effecting any registration pursuant to this Agreement,
including, without limitation, all registration, qualification and filing fees, printing expenses, escrow fees, fees and disbursements of counsel for the Company, blue sky fees and expenses, and expenses of any regular or special audits incident to
or required by any such registration, and reasonable fees and disbursements of one special counsel for the Holders, but shall not include Selling Expenses and the compensation of regular employees of the Company, which shall be paid in any event by
the Company. 
 (w) “Restricted Securities” shall mean any Registrable Securities required to bear the first legend set
forth in Section 1.2(b) hereof. 
 (x) “Rule 144” shall mean Rule 144 as promulgated by the Commission under the
Securities Act, as such rule may be amended from time to time, or any similar successor rule that may be promulgated by the Commission. 

(y) “Rule 145” shall mean Rule 145 as promulgated by the Commission under the Securities Act, as such rule may be amended
from time to time, or any similar successor rule that may be promulgated by the Commission. 

  
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 (z) “Securities Act” shall mean the Securities Act of 1933, as amended, or any
similar successor federal statute and the rules and regulations thereunder, all as the same shall be in effect from time to time. 
 (aa)
“Selling Expenses” shall mean all underwriting discounts and selling commissions applicable to the sale of Registrable Securities and fees and disbursements of counsel for any Holder (other than the fees and disbursements of counsel
included in Registration Expenses). 
 (bb) “Series A Preferred Stock” shall mean the Company’s Series A Preferred
Stock, par value $0.01 per share. 
 (cc) “Series B Preferred Stock” shall mean the Company’s Series B Preferred
Stock, par value $0.01 per share. 
 (dd) “Shares” shall mean shares of Series A Preferred Stock and Series B Preferred
Stock. 
 (ee) “S-3 Initiating Holders” shall mean any Holder or Holders who in
the aggregate hold not less than sixty percent (60%) of the outstanding Registrable Securities. 
 1.2 Restrictions on Transfer. 

(a) Each Holder agrees not to make any disposition of all or any portion of the Registrable Securities unless and until the transferee has
agreed in writing for the benefit of the Company to be bound by this Section 1.2, provided and to the extent this Section 1.2 is then applicable, and: 

(i) there is then in effect a registration statement under the Securities Act covering such proposed disposition and such
disposition is made in accordance with such registration statement; or 
 (ii) such Holder shall have notified the Company
of the proposed disposition and shall have furnished the Company with a statement of the circumstances surrounding the proposed disposition necessary for the Company to reasonably determine that such disposition will not require registration under
the Securities Act and, if reasonably requested, provide an executed certificate stating that such Holder has determined that such disposition will not require registration under the Securities Act. 

(b) Notwithstanding the provisions of Section 1.2(a) hereof, no such registration statement or certificate of determination shall be
necessary for a transaction involving a transfer without consideration by a Holder that is (i) a partnership transferring to its partners or former partners in accordance with their partnership interests, (ii) a corporation transferring to
its stockholders in accordance with their interests in the corporation, (iii) a limited liability company transferring to its members or former members in accordance with their limited liability company interests, or (iv) an individual
Holder transferring to a Family Member of a Holder or a trust for the benefit of such Holder or Family Member made for bona fide estate planning purposes, provided that in each case the transferee agrees to be subject to the terms of this Agreement
to the same extent as if such transferee were an original Holder hereunder. 

  
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 (c) Each certificate representing Registrable Securities shall (unless otherwise permitted by
the provisions of this Agreement) be stamped or otherwise imprinted with a legend substantially similar to the following (in addition to any legend required under applicable state securities laws): 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT OF 1933 OR THE SECURITIES LAWS OF
ANY STATE, AND MAY BE OFFERED AND SOLD ONLY IF REGISTERED AND QUALIFIED PURSUANT TO THE RELEVANT PROVISIONS OF FEDERAL AND STATE SECURITIES LAWS OR IF OFFERED AND SOLD PURSUANT TO A VALID EXEMPTION THERETO. 

THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A LOCK-UP PERIOD FOLLOWING THE EFFECTIVE
DATE OF A REGISTRATION STATEMENT OF THE COMPANY FILED UNDER THE ACT, AS SET FORTH IN AN AGREEMENT BETWEEN THE COMPANY AND THE ORIGINAL HOLDER OF THESE SECURITIES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE COMPANY. SUCH LOCK-UP PERIOD IS BINDING ON TRANSFEREES OF THESE SECURITIES. 
 (d) Any legend endorsed on an instrument
pursuant to applicable state securities laws and the stop-transfer instructions with respect to such securities shall be removed upon receipt by the Company of an order of the appropriate blue sky authority authorizing such removal 

1.3 Requested Registration. 

(a) If the Company shall receive from Initiating Holders who are Investors or permissible assignees of Investors pursuant to Section 1.12
hereof, at any time or times after the earlier of (i) five (5) years after the date hereof or (ii) six (6) months after the effective date of the registration statement for the Initial Public Offering, a written request that the Company
effect any registration with respect to all or a part of the Registrable Securities, the aggregate proceeds of which (after deduction for underwriter’s discounts and expenses related to the issuance) exceed $30,000,000, the Company shall: 

(i) within ten (10) days of receipt thereof, give written notice of the proposed registration to all other Holders; and

 (ii) as soon as practicable, and in any event within sixty (60) days of receipt of such request, file a registration
statement covering such Registrable Securities of the Initiating Holders as are specified in such request, together with the Registrable Securities of other Holders joining in such request as are specified in a written request received by the
Company within ten (10) days after such written notice from the Company is given, and use commercially reasonable efforts to effect such registration. 

  
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 (b) The Company shall not be obligated to effect, or to take any action to effect, any such
registration pursuant to this Section 1.3: 
 (i) in any particular jurisdiction in which the Company would be required
to execute a general consent to service of process in effecting such registration, qualification or compliance, unless the Company is already subject to service in such jurisdiction and except as may be required by the Securities Act; 

(ii) after the Company has effected two (2) such registrations pursuant to this Section 1.3 (counting for these
purposes only registrations which have been declared or ordered effective and registrations which have been withdrawn by the Holders as to which the Holders have not elected to bear the Registration Expenses pursuant to Section 1.6 hereof and
would, absent such election, have been required to bear such expenses); 
 (iii) during the period starting with the date
sixty (60) days prior to the Company’s good faith estimate of the date of filing of, and ending on a date one hundred eighty (180) days after the effective date of, a Company-initiated registration, provided that the Company is
actively employing in good faith all commercially reasonable efforts to cause such registration statement to become effective; or 

(iv) if the Initiating Holders propose to dispose of Registrable Securities which may be registered on Form S-3 pursuant to a request made under Section 1.5 hereof. 
 (c) If the Company shall furnish to the
Initiating Holders a certificate signed by the President of the Company stating that in the good faith judgment of the Board of Directors of the Company it would be materially detrimental to the Company for such registration statement to be filed in
the near future and that it is therefore in the best interests of the Company to defer the filing of such registration statement, the Company shall have the right to defer such filing for the period during which such disclosure would be materially
detrimental, provided that the Company may not defer such filing for a period of more than one hundred twenty (120) days after receipt of the request of the Initiating Holders. The Company may not defer its obligation in this manner more than
twice in any twelve (12) month period. 
 (d) The registration statement filed pursuant to the request of the Initiating Holders may,
subject to the provisions of Section 1.14 hereof, include Other Shares held by Other Stockholders and may include securities of the Company being sold for the account of the Company. 

(e) If the Initiating Holders intend to distribute the Registrable Securities covered by their request by means of an underwriting, they
shall so advise the Company as a part of their request made pursuant to Section 1.3(a) hereof and the Company shall include such information in the written notice referred to in Section 1.3(a) hereof. The underwriter or underwriters shall
be selected by the Company and shall be reasonably acceptable to Initiating Holders holding a majority of the Registrable Securities held by all Initiating Holders. 

  
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In such event, the right of any Holder to include such Holder’s Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such underwriting
and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such underwriting shall, together with the Company, enter into an
underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting; provided that notwithstanding anything to the contrary contained herein, no Holder shall be required to make any representations or
warranties to or agreements with the Company or the underwriters in connection with such underwriting agreement other than representations, warranties or agreements regarding such Holder, such Holder’s title to the Registrable Securities, such
Holder’s authority to sell the Registrable Securities, such Holder’s intended method of distribution, absence of liens with respect to the Registrable Securities, enforceability of the applicable underwriting agreement as against such
Holder, receipt of all consents and approvals with respect to the entry into such underwriting agreement and the sale of such Registrable Securities and any other representations required to be made by such Holder under applicable law, rule or
regulation, and the aggregate amount of the liability of such Holder in connection with such underwriting agreement shall not exceed such Holder’s net proceeds (i.e. gross proceeds less underwriter’s discounts and commissions) from such
underwritten offering. 
 (f) Notwithstanding any other provision of this Section 1.3, if the representative of the underwriters
advises the Initiating Holders in writing that marketing factors require a limitation on the number of securities to be underwritten, the Initiating Holders shall so advise all holders of Registrable Securities that would otherwise be underwritten,
and the number of securities to be included in the underwriting shall be allocated in accordance with Section 1.14 hereof. If a person who has requested inclusion in such registration as provided herein does not agree to the terms of any such
underwriting, such person shall be excluded therefrom by written notice from the Company, the underwriter or the Initiating Holders, and the securities so excluded shall be withdrawn from such registration. If securities are so withdrawn from the
registration and if the number of securities to be included in such registration was previously reduced as a result of marketing factors pursuant to this Section 1.3(f), the Company shall offer to all Holders or Other Stockholders who have
retained rights to include securities in the registration the right to include additional securities in the registration in an aggregate amount equal to the number of securities so withdrawn, with such securities to be allocated among such Holders
or Other Stockholders requesting additional inclusion in accordance with Section 1.14 hereof. 
 1.4 Company Registration. 

(a) If the Company shall determine to register any of its securities either for its own account or the account of a security holder or
holders exercising their respective demand registration rights, other than a registration pursuant to Section 1.3 or 1.5 hereof, a registration related to a the Company’s Initial Public Offering of its Common Stock where the Company has
determined pursuant to Section 1.4(c) hereof to exclude selling stockholders, a registration relating solely to employee benefit plans, a registration relating to the offer and sale of debt securities, or a registration relating solely to a
Rule 145 transaction, the Company shall: 

  
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 (i) promptly give to each Holder written notice thereof; and 

(ii) include in such registration (and any related qualification under blue sky laws or other compliance), except as set forth
in Section 1.4(b) hereof, and in any underwriting involved therein, all the Registrable Securities specified in a written request or requests, made by any Holder and received by the Company within ten (10) days after the written notice
from the Company described in clause (i) above is given by the Company. Such written request may specify all or a part of a Holder’s Registrable Securities. 

(b) If the registration of which the Company gives notice is for a registered public offering involving an underwriting, the Company shall so
advise the Holders as a part of the written notice given pursuant to Section 1.4(a)(i) hereof. In such event, the right of any Holder to include Registrable Securities in such registration pursuant to this Section 1.4 shall be conditioned
upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their securities through such
underwriting shall (together with the Company and any Other Stockholders distributing their securities through such underwriting) enter into an underwriting agreement in customary form with the representative of the underwriter or underwriters
selected by the Company. 
 (c) Notwithstanding any other provision of this Section 1.4, if the representative of the underwriters
advises the Company that marketing factors require a limitation on the number of securities sold other than by the Company, the representative may (subject to the limitations set forth below) exclude all Registrable Securities from, or limit the
number of Registrable Securities to be included in, the registration and underwriting. If the registration is with respect to the Company’s Initial Public Offering, the Company may limit, to the extent so advised by the underwriters, the amount
of securities (including Registrable Securities) to be included in the registration by the Company’s stockholders (including the Holders), or may exclude, to the extent so advised by the underwriters, such underwritten securities entirely from
such registration (provided that all Holders shall be excluded last from such offering). If such registration is with respect to any subsequent Company-initiated registered offering of the Company’s securities to the general public, the Company
may limit, to the extent so advised by the underwriters, the amount of securities to be included in the registration by the Company’s stockholders (including the Holders); provided, however, that the number of Registrable Securities to be
included in such registration by the Company’s stockholders (including the Holders) may not be so reduced to less than twenty percent (20%) of the total number of all securities included in such registration (provided that all Holders shall be
excluded last from such offering). The Company shall so advise all holders of securities requesting registration, and the number of securities that are entitled to be included in the registration and underwriting shall be allocated first to the
Company for securities being sold for its own account and thereafter as set forth in Section 1.14 hereof. If any person does not agree to the terms of any such underwriting, such person shall be excluded therefrom by written notice from the
Company or the underwriter. Any securities excluded or withdrawn from such underwriting shall be withdrawn from such registration. If securities are so withdrawn from the registration and if the number of securities to be included in such
registration was previously reduced as a result of marketing factors, the Company shall then offer to all persons who have retained the right to include securities in the registration the right to include additional securities in the registration in
an aggregate amount equal to the number of securities so withdrawn, with such securities to be allocated among the persons requesting additional inclusion in accordance with Section 1.14 hereof.

  
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To facilitate the allocation of securities in accordance with the above provisions, the Company or the underwriter(s) may round the number of securities allocated to any Holder to the nearest 100
shares. 
 (d) Right to Terminate Registration. The Company shall have the right to terminate or withdraw any registration initiated
by it under this Section 1.4 prior to the effectiveness of such registration whether or not any Holder has elected to include securities in such registration. 

1.5 Registration on Form S-3. 

(a) After the Company has qualified for the use of Form S-3, in addition to the rights contained in
the foregoing provisions of this Section 1, the S-3 Initiating Holders who are Investors or permissible assignees of Investors pursuant to Section 1.12 hereof shall have the right to request
registrations on Form S-3 (such requests shall be in writing and shall state the number of Registrable Securities to be disposed of and the intended methods of disposition of such securities by such Holder or
Holders); provided, however, that the Company shall not be obligated to effect any such registration: 
 (i) if the S-3 Initiating Holders, together with the holders of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any) on Form S-3 at an aggregate price to the public of less than $10,000,000; 
 (ii) if the Company
shall furnish the certification described in Section 1.3(c) hereof (but subject to the limitations set forth therein); 

(iii) in a given six (6) month period, after the Company has effected one (1) such registration in any such period;
or 
 (iv) in the circumstances described in Sections 1.3(b)(i) or 1.3(b)(iii) hereof. 

(b) If a request complying with the requirements of Section 1.5(a) hereof is delivered to the Company, the provisions of Sections
1.3(a)(i) and (ii) hereof shall apply to such registration. If the registration is for an underwritten offering, the provisions of Sections 1.3(e) and 1.3(f) hereof shall apply to such registration. 

1.6 Expenses of Registration. All Registration Expenses incurred in connection with any registration, qualification or compliance
pursuant to Sections 1.3, 1.4 and 1.5 hereof shall be borne by the Company; provided, however, that the Company shall not be required to pay for any expenses of any registration proceeding begun pursuant to Sections 1.3 and 1.5 hereof if the
registration request is subsequently withdrawn at the request of the Holders of a majority of the Registrable Securities to be registered or because a sufficient number of Holders shall have withdrawn so that the minimum offering conditions set
forth in Sections 1.3 and 1.5 hereof are no longer satisfied (in which case all participating Holders shall bear such expenses pro rata among such Holders based on the number of Registrable Securities requested to be so registered), unless the
Holders of sixty percent (60%) of the Registrable Securities agree to forfeit their right to one (1) demand registration pursuant to Section 1.3 or 1.5 hereof, as applicable; provided further, however, that if (a) such withdrawal
occurs prior to the date the registration statement shall have become effective and is based upon material adverse information relating to the Company that is different from the information known to the Holders requesting registration at the time of
their request for registration under Section 1.3 or 1.5 hereof or (b) as a result of an exercise of the underwriter’s cutback provisions in Section 1.14, fewer than seventy-five percent (75%) of the total number of Registrable
Securities that Holders have requested to be included in such registration statement are actually included, such registration shall not be treated as a counted registration for purposes of Section 1.3 or 1.5 hereof, as applicable, even though
the Holders do not bear the Registration Expenses for such registration. 

  
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All Selling Expenses relating to securities so registered shall be borne by the holders of such securities pro rata on the basis of the number of securities so registered on their behalf. 

1.7 Registration Procedures. In the case of each registration effected by the Company pursuant to Section 1.3, 1.4 or 1.5 hereof,
the Company will keep each Holder advised in writing as to the initiation of each registration and as to the completion thereof. At its expense, the Company shall: 

(a) Keep such registration effective for a period of one hundred twenty (120) days or until the Holder or Holders have completed the
distribution described in the registration statement relating thereto, whichever first occurs; provided, however, that (i) such one hundred twenty (120) day period shall be extended for a period of time equal to the period the Holder
refrains from selling any securities included in such registration at the request of an underwriter of Common Stock (or other securities) of the Company; and (ii) in the case of any registration of Registrable Securities on Form S-3 which are intended to be offered on a continuous or delayed basis, subject to compliance with SEC rules, such one hundred twenty (120) day period shall be extended for up to sixty (60) days, if
necessary, to keep the registration statement effective until all such Registrable Securities are sold; 
 (b) Prepare and file with the
Commission such amendments and supplements to such registration statement and the prospectus used in connection with such registration statement as may be necessary to comply with the provisions of the Securities Act with respect to the disposition
of all securities covered by such registration statement; 
 (c) Furnish such number of copies of a prospectus, including a preliminary
prospectus, and any Free Writing Prospectus, including any amendments or supplements thereto, and other documents incident thereto, as a Holder from time to time may reasonably request in order to facilitate the distribution of such Holder’s
Registrable Securities; 
 (d) Notify each seller of Registrable Securities covered by such registration statement at any time when a
prospectus or Free Writing Prospectus (to the extent prepared by or on behalf of the Company) relating thereto is required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in such
registration statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading or incomplete in the light of the
circumstances then existing, and at the request of any such seller, prepare and furnish to such seller a reasonable number of copies of a supplement to or an amendment of such prospectus or Free Writing Prospectus (to the extent prepared by or on
behalf of the Company) as may be necessary so that, as thereafter delivered to the purchasers of such shares, such prospectus shall not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein not misleading or incomplete in the light of the circumstances then existing; 

  
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 (e) Cause all such Registrable Securities registered hereunder to be listed on each securities
exchange on which similar securities issued by the Company are then listed; 
 (f) Provide a transfer agent and registrar for all
Registrable Securities registered pursuant to such registration statement and a CUSIP number for all such Registrable Securities, in each case not later than the effective date of such registration; 

(g) In connection with any underwritten offering pursuant to a registration statement filed pursuant to this Section 1, the Company will
enter into an underwriting agreement reasonably necessary to effect the offer and sale of Common Stock, provided such underwriting agreement contains customary underwriting provisions and provided further that if the underwriter so requests the
underwriting agreement will contain customary contribution provisions; 
 (h) Furnish, at the request of any Holder requesting registration
of Registrable Securities pursuant to this Section 1, on the date that such Registrable Securities are delivered to the underwriters for sale in connection with a registration pursuant to this Section 1, if such securities are being sold
through underwriters, or, if such securities are not being sold through underwriters, on the date that the registration statement with respect to such securities becomes effective, (i) an opinion, dated such date, of the counsel representing
the Company for the purposes of such registration, in form and substance as is customarily given to underwriters in an underwritten public offering, addressed to the underwriters, if any, and to the Holders requesting registration of Registrable
Securities and (ii) a letter dated such date, from the independent certified public accountants of the Company, in form and substance as is customarily given by independent certified public accountants to underwriters in an underwritten public
offering, addressed to the underwriters, if any, and to the Holders requesting registration of Registrable Securities; and 
 (i) Register
and qualify the securities covered by such registration statement under such other securities or blue sky laws of such jurisdictions as shall be reasonably requested by the Holders, provided that the Company shall not be required in connection
therewith or as a condition thereto to qualify to do business or to file a general consent to service of process in any such states or jurisdictions. 

  
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 1.8 Indemnification. 

(a) To the fullest extent permitted by law, the Company will indemnify each Holder, each of its officers, directors, Affiliates and partners,
legal counsel, and accountants and each person controlling such Holder within the meaning of Section 15 of the Securities Act, with respect to which registration, qualification, or compliance has been effected pursuant to this Section 1,
and each underwriter, if any, and each person who controls within the meaning of Section 15 of the Securities Act any underwriter, against all expenses, claims, losses, damages, and liabilities (or actions, proceedings, or settlements in
respect thereof) arising out of or based on (i) any untrue statement (or alleged untrue statement) of a material fact contained in any prospectus, offering circular, or other document (including any related registration statement, notification,
or the like) incident to any such registration, qualification, or compliance, (ii) any omission (or alleged omission) to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, or
(iii) any violation (or alleged violation) by the Company of the Securities Act, any state or other securities laws or any rule or regulation thereunder applicable to the Company and relating to action or inaction required of the Company in
connection with any such registration, qualification, or compliance, and will reimburse each such Holder, each of its officers, directors, Affiliates, partners, legal counsel, and accountants and each person controlling such Holder, each such
underwriter, and each person who controls any such underwriter, for any legal and any other expenses reasonably incurred in connection with investigating and defending or settling any such claim, loss, damage, liability, or action; provided that the
Company will not be liable in any such case to the extent that any such claim, loss, damage, liability, or expense arises out of or is based on any untrue statement or omission based upon written information furnished to the Company by such Holder
or underwriter and stated to be specifically for use therein. It is agreed that the indemnity agreement contained in this Section 1.8(a) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability, or action if such
settlement is effected without the consent of the Company (which consent has not been unreasonably withheld). 
 (b) To the fullest extent
permitted by law, each Holder will, if Registrable Securities held by such Holder are included in the securities as to which such registration, qualification, or compliance is being effected, indemnify the Company, each of its directors, officers,
partners, legal counsel, and accountants and each underwriter, if any, of the Company’s securities covered by such a registration statement, each person who controls the Company or such underwriter within the meaning of Section 15 of the
Securities Act, each other such Holder and Other Stockholder, and each of their officers, directors, and partners, and each person controlling such Holder or Other Stockholder, against all claims, losses, damages and liabilities (or actions in
respect thereof) arising out of or based on (i) any untrue statement (or alleged untrue statement) of a material fact contained in any such registration statement, prospectus, offering circular, or other document, or (ii) any omission (or
alleged omission) to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and will reimburse the Company and such Holders, Other Stockholders, directors, officers, partners, legal
counsel, and accountants, persons, underwriters, or control persons for any legal or any other expenses reasonably incurred in connection with investigating or defending any such claim, loss, damage, liability, or action, in each case to the extent,
but only to the extent, that such untrue statement (or alleged untrue statement) or omission (or alleged omission) is made in such registration statement, prospectus, offering circular, or other document in reliance upon and in conformity with
written information furnished to the Company by such Holder and stated to be specifically for use therein; provided, however, that the obligations of such Holder hereunder shall not apply to amounts paid in settlement of any such claims, losses,
damages, or liabilities (or actions in respect thereof) if such settlement is effected without the consent of such Holder (which consent shall not be unreasonably withheld). 

  
 -13- 

 
In no event shall any indemnity under this Section 1.8(b) exceed the net proceeds from the offering received by such Holder. 

(c) Each party entitled to indemnification under this Section 1.8 (the “Indemnified Party”) shall give notice to the
party required to provide indemnification (the “Indemnifying Party”) promptly after such Indemnified Party has actual knowledge of any claim as to which indemnity may be sought, and shall permit the Indemnifying Party to assume the
defense of such claim or any litigation resulting therefrom, provided that counsel for the Indemnifying Party, who shall conduct the defense of such claim or any litigation resulting therefrom, shall be approved by the Indemnified Party (whose
approval shall not unreasonably be withheld), and the Indemnified Party may participate in such defense at such party’s expense, and provided further that the failure of any Indemnified Party to give notice as provided herein shall relieve the
Indemnifying Party of its obligations under this Section 1, only to the extent such failure is prejudicial. No Indemnifying Party, in the defense of any such claim or litigation, shall, except with the consent of each Indemnified Party, consent
to entry of any judgment or enter into any settlement that does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party of a release from all liability in respect to such claim or litigation.
Each Indemnified Party shall furnish such information regarding itself or the claim in question as an Indemnifying Party may reasonably request in writing and as shall be reasonably required in connection with defense of such claim and litigation
resulting therefrom. 
 (d) If the indemnification provided for in this Section 1.8 is held by a court of competent jurisdiction to be
unavailable to an Indemnified Party with respect to any loss, liability, claim, damage, or expense referred to therein, then the Indemnifying Party, in lieu of indemnifying such Indemnified Party hereunder, shall contribute to the amount paid or
payable by such Indemnified Party as a result of such loss, liability, claim, damage, or expense in such proportion as is appropriate to reflect the relative fault of the Indemnifying Party on the one hand and of the Indemnified Party on the other
in connection with the statements or omissions that resulted in such loss, liability, claim, damage, or expense as well as any other relevant equitable considerations; provided, however, that in no event shall any contribution by a Holder under
subsection (d) of this Section 1.8 (together with any amounts paid pursuant to Section 1.8(b) above) exceed the net proceeds from the offering received by such Holder. The relative fault of the Indemnifying Party and of the Indemnified
Party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information supplied by the Indemnifying Party or by the Indemnified
Party and the parties’ relative intent, knowledge, access to information, and opportunity to correct or prevent such statement or omission. 

(e) Notwithstanding the foregoing, to the extent that the provisions on indemnification and contribution contained in the underwriting
agreement entered into in connection with the underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting agreement shall control; provided that in no event shall any indemnity obligations of any
Holder exceed the net proceeds from the offering received by a such Holder, except in the case of willful misconduct or fraud by such Holder. 

  
 -14- 

 (f) The obligations of the Company and Holders under this Section 1.8 shall survive the
completion of any offering of Registrable Securities in a registration statement under this Section 1, and otherwise. 
 1.9
Information by Holder. Each Holder of Registrable Securities shall furnish to the Company such information regarding such Holder and the distribution proposed by such Holder as the Company may reasonably request in writing and as shall be
reasonably required in connection with any registration, qualification, or compliance referred to in this Section l. 
 1.10 Limitations
on Subsequent Registration Rights. After the date of this Agreement, the Company shall not, without the prior written consent of Holders of sixty percent (60%) of the Registrable Securities, enter into any agreement with any holder or
prospective holder of any securities of the Company giving such holder or prospective holder any registration rights the terms of which are more favorable than or on parity with the registration rights granted to the Holders hereunder, unless, under
the terms of such agreement, such holder or prospective holder may include such securities in any such registration only to the extent that the inclusion of such securities would not reduce the number of Registrable Securities included by the
Holders. 
 1.11 Rule 144 Reporting. With a view to making available the benefits of certain rules and regulations of the Commission
that may permit the sale of the Registrable Securities to the public without registration, the Company agrees to use commercially reasonable efforts to: 

(a) Make and keep public information regarding the Company available, as those terms are understood and defined in Rule 144 under the
Securities Act, at all times from and after ninety (90) days following the effective date of the first registration under the Securities Act filed by the Company for an offering of its securities to the general public; 

(b) File with the Commission in a timely manner all reports and other documents required of the Company under the Securities Act and the
Exchange Act at any time after it has become subject to such reporting requirements; and 
 (c) So long as a Holder owns any Restricted
Securities, furnish to the Holder forthwith upon written request a written statement by the Company as to its compliance with the reporting requirements of Rule 144 (at any time from and after ninety (90) days following the effective date of
the first registration statement filed by the Company for an offering of its securities to the general public), and of the Securities Act and the Exchange Act (at any time after it has become subject to such reporting requirements), a copy of the
most recent annual or quarterly report of the Company, and such other reports and documents so filed as a Holder may reasonably request in availing itself of any rule or regulation of the Commission allowing a Holder to sell any such securities
without registration. 
 1.12 Transfer or Assignment of Registration Rights. The rights to cause the Company to register securities
granted to a Holder by the Company under this Section 1 may be transferred or assigned by (a) a Holder (other than an Institutional Holder) only to a Family Member of such Holder or a trust for the benefit of such Holder or Family
Member made for bona fide estate planning purposes, and (b) an Institutional Holder only to (i) a transferee or assignee who after such transfer or assignment holds not less than 10,000 Registrable Securities (subject to subsequent
adjustments for stock splits, stock dividends, reverse stock splits, and the like); (ii) partners, retired partners, members, retired members or other equity owners or Affiliates of such Institutional Holder or to the estate of any such individuals;
or (iii) a Family Member of such Institutional Holder or a trust for the benefit of such Institutional Holder or Family Member made for bona fide estate planning purposes; provided, however, that in each such case (including with respect to
Holders) the Company is given written notice at the time of or within a reasonable time after such transfer or assignment, stating the name and address of the transferee or assignee and identifying the securities with respect to which such
registration rights are being transferred or assigned, such transfer or assignment is effected in accordance with Section 1.2 hereof, and the transferee or assignee of such rights assumes in writing the obligations of such Holder under this
Agreement. 

  
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 1.13 “Market Stand-Off” Agreement. 

(a) Each Holder agrees that such Holder shall not sell or otherwise transfer, dispose of, make any short sale of, grant any option for the
purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale of, any Common Stock (or other securities) of the Company held by such Holder (other than those included in the registration) during the one
hundred eighty (180) day period following the effective date of the initial registration statement of the Company filed under the Securities Act (or such longer period as the underwriters or the Company shall request in order to facilitate
compliance with FINRA Rule 2711 or NYSE Member Rule 472 or any successor or similar rule or regulation) and during the ninety (90) day period following the effective date of any subsequent registration statement of the Company filed under the
Securities Act (or such longer period as the underwriters or the Company shall request in order to facilitate compliance with FINRA Rule 2711 or NYSE Member Rule 472 or any successor or similar rule or regulation); provided that such restrictions
with respect to any subsequent registration shall terminate one year after the effective date of the Company’s initial registration statement filed under the Securities Act. The foregoing provisions of this Section 1.13 shall not apply to
the sale of any securities to an underwriter pursuant to an underwriting agreement and shall only be applicable to the Holders if all then current officers and directors and greater than one percent (1%) stockholders of the Company enter into
similar agreements. The underwriters in connection with any public offering subject to the provisions of this Section 1.13 are intended third party beneficiaries of this Section 1.13 and shall have the right to enforce the provisions
hereof as though they were a party hereto. Any discretionary waiver or termination of the restrictions of any or all of such agreements by the Company or the underwriters shall apply to all Holders subject to such agreements pro rata based on the
number of securities subject to such agreements, unless waived by the Holders of sixty percent (60%) of the Registrable Securities. 
 (b)
The obligations described in this Section 1.13 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 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 securities subject to the foregoing restriction until the end of the applicable periods. Each Holder agrees to execute a market standoff agreement with the underwriters in customary form consistent with the
provisions of this Section 1.13. 

  
 -16- 

 1.14 Allocation of Registration Opportunities. Except as otherwise provided in this
Agreement, in any circumstance in which all of the Registrable Securities and Other Shares requested to be included in a registration on behalf of the Holders or Other Stockholders cannot be so included as a result of limitations in the aggregate
number of Registrable Securities and Other Shares that may be so included, the number of Registrable Securities and Other Shares (if any) shall be excluded, first by excluding Other Shares, pro rata on the basis of the number of Other Shares held by
such Other Stockholders, and thereafter by excluding Registrable Securities, pro rata on the basis of the number of Registrable Securities held by such Holders, until the aggregate number of Registrable Securities and Other Shares (if any) may be
included in such registration. If any Holder or Other Stockholder does not request inclusion of the maximum number of Registrable Securities and Other Shares allocated to such person pursuant to the above described formula, the remaining portion of
such person’s allocation shall be reallocated among those requesting Holders and/or Other Stockholders whose allocations did not satisfy their requests, pro rata on the same basis as described above, and this procedure shall be repeated until
all of the Registrable Securities and/or Other Shares that may be included in such registration on behalf of the Holders and/or Other Stockholders have been so allocated. For purposes of the preceding sentence concerning apportionment, for any
selling stockholder that is a Holder of Registrable Securities and that is a venture capital fund, partnership or corporation, such Holder together with all partners, retired partners, members, retired members and other equity owners or Affiliates
of such Holder, or the estates and Family Members of any such individuals and any trusts for the benefit of any of the foregoing persons shall be deemed to be a single “selling Holder,” and any pro rata reduction with respect to such
“selling Holder” shall be based upon the aggregate amount of Registrable Securities owned by all such related entities and individuals. 

1.15 Delay of Registration. No Holder shall have any right to take any action to restrain, enjoin, or otherwise delay any registration
as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 1. 
 1.16
Termination of Registration Rights. The right of any Holder to request registration or inclusion in any registration pursuant to Section 1.3, 1.4 or 1.5 hereof shall terminate upon the earlier of (a) such date after the closing of
the Initial Public Offering as all shares of Registrable Securities held or entitled to be held upon conversion by such Holder may immediately be sold under Rule 144 during any ninety (90) day period (provided that if any such exemption
subsequently becomes unavailable to the Holder, such Holder’s rights hereunder shall automatically be reinstated until the expiration of the period set forth in Section 1.16(b)); or (b) the expiration of five (5) years after the
closing of the Initial Public Offering. 
 2. Covenants of the Company. The Company hereby covenants and agrees, so long as a Holder
owns any Registrable Securities, as follows: 
 2.1 Basic Financial Information. The Company will furnish the following reports to
each Major Holder: 

  
 -17- 

 (a) within one hundred twenty (120) days after the end of each fiscal year of the Company,
a consolidated balance sheet of the Company and its subsidiaries, if any, as at the end of such fiscal year, and consolidated statements of income, cash flows and stockholders’ equity of the Company and its subsidiaries, if any, for such fiscal
year, prepared in accordance with generally accepted accounting principles consistently applied, certified by BDO USA LLP or such other independent public accountants of recognized national standing selected by the Company; 

(b) within forty-five (45) days after the end of the first, second and third quarterly accounting periods in each fiscal year of the
Company, an unaudited consolidated balance sheet of the Company and its subsidiaries, if any, as of the end of each such quarterly period, and consolidated statements of income and cash flows of the Company and its subsidiaries, if any, for such
period, prepared in accordance with generally accepted accounting principles consistently applied (except that such financial statements may be subject to normal year-end adjustments and may not contain all
footnotes required by generally accepted accounting principles); 
 (c) at least thirty (30) days prior to the beginning of each
fiscal year, an annual budget and business plan for such fiscal year; and 
 (d) such other information relating to the financial
condition, business, prospects, or corporate affairs of the Company as any Major Holder may from time to time reasonably request; provided, however, that the Company shall not be obligated under this Subsection 2.1(d) to provide information
(i) that the Company reasonably determines in good faith to be a trade secret or confidential information (unless covered by an enforceable confidentiality agreement, in form acceptable to the Company) or (ii) the disclosure of which would
adversely affect the attorney-client privilege between the Company and its counsel. 
 If, for any period, the Company has any subsidiary whose accounts are
consolidated with those of the Company, then in respect of such period the financial statements delivered pursuant to the foregoing sections shall be the consolidated and consolidating financial statements of the Company and all such consolidated
subsidiaries 
 2.2 Inspection Rights. The Company will afford to each Major Holder, and to such Major Holder’s accountants and
counsel, reasonable access during normal business hours to all of the Company’s respective properties, books and records. Each such Major Holder shall have such other access to management and information as is necessary for it to comply with
applicable laws and regulations and reporting obligations. The Company shall not be required to disclose details of contracts with or work performed for specific customers and other business partners where to do so would violate confidentiality
obligations to those parties. 
 2.3 Confidentiality. No Holder by reason of this Agreement shall have access to classified
information of the Company. The Company shall not be required to comply with any information rights of this Section 2 in respect of any Holder that the Board of Directors reasonably and in good faith determines to be a competitor of the Company
or an officer, employee, director or holder of more than ten percent (10%) of the outstanding equity interests of such a competitor; provided that that the mere investment by any Holder or any Affiliate that is a venture capital fund, private equity
fund or financial investment firm or collective investment vehicle in other companies in the Company’s industry or participation on such company’s board of directors shall not, in and of itself, cause such Holder to be deemed, a
competitor, of the Company. 

  
 -18- 

 
Each Holder agrees to hold in confidence and trust and not to misuse or disclose any information furnished pursuant to this Section 2 that the Company identifies as being confidential and to
use the same degree of care as such Holder uses to protect its own confidential information, except that such Holder may disclose such confidential information (i) to any partner, member, employee, director, Affiliate, representative, agent,
subsidiary or parent of such Holder or any of their respective partners, members, employees, directors, Affiliates, representatives, agents, subsidiaries or parents for the purpose of evaluating its investment in the Company as long as such partner,
member, subsidiary or parent is advised of the confidentiality provisions of this Section 2.3, (ii) that enters the public domain through no fault of such Holder, (iii) that is disclosed to such Holder free of any obligation of
confidentiality, (iv) that is developed by such Holder or its agents independently of and without reference to any confidential information disclosed by the Company, (v) to any prospective transferee of such Holder’s Shares as long as
such prospective transferee enters into a customary confidentiality agreement with such Holder in respect of such confidential information or (vi) as may otherwise be required by law, provided that such Holder promptly notifies the Company of
such disclosure and takes reasonable steps to minimize the extent of any such required disclosure. Furthermore, nothing in this Agreement shall prevent any of Accel or Insight or any of their Affiliates from (i) entering into any business,
entering into any agreement with a third party, or investing in or engaging in investment discussions with any other person (whether or not competitive with the Company), provided that neither Accel nor Insight, except as permitted in accordance
with this Section 2.3, discloses or otherwise makes use of any proprietary or confidential information of the Company in connection with such activities, or (ii) making any disclosures required by law, rule, regulation or court or other
governmental order. 
 2.4 Transfer or Assignment of Information Rights. The rights granted pursuant to Sections 2.1 and 2.2 may be
transferred or assigned by (a) a Major Holder (other than a Major Institutional Holder) only to a Family Member of such Major Holder or a trust for the benefit of such Major Holder or Family Member made for bona fide estate planning purposes,
and (b) a Major Institutional Holder only to (i) a transferee or assignee who after such transfer or assignment holds 25,000 Registrable Securities or more (subject to subsequent adjustments for stock splits, stock dividends, reverse stock
splits, and the like); (ii) partners, retired partners, members, retired members or other equity owners or affiliates of such Major Institutional Holder or to the estate of any such individuals; or (iii) a Family Member of such Major
Institutional Holder or a trust for the benefit of such Major Institutional Holder or Family Member made for bona fide estate planning purposes; provided, however, that in each such case (including with respect to a Major Holder) the Company is
given written notice at the time of or within a reasonable time after such transfer or assignment, stating the name and address of the transferee or assignee and the transferee or assignee of such rights assumes in writing the obligations of such
Major Holder under this Agreement. Notwithstanding the foregoing, the rights granted pursuant to Sections 2.1 and 2.2 may not be assigned or otherwise conveyed by the Major Holders or by any subsequent transferee of any such rights to any person or
entity that is reasonably and in good faith determined by the Board of Directors of the Company to be a competitor of the Company; provided that the mere investment by any such prospective transferee that is, or has Affiliates that are, a financial
investment firm or collective investment vehicle (a “Fund Transferee”) in other companies that compete directly with the Company’s business (a “Portfolio Company”) or participation on a Portfolio Company’s
board of directors shall not, in and of itself, cause such prospective Fund Transferee to be deemed a competitor of the Company so long as, in connection with such assignment, the Fund Transferee agrees that no confidential information provided to
such Fund Transferee pursuant to Sections 2.1 and 2.2 shall be distributed to a Portfolio Company. 

  
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 2.5 Directors’ and Officer’s Insurance. The Company shall use commercially
reasonable efforts to maintain at all times directors’ and officer’s insurance in the amount of $5,000,000. 
 2.6 Compensation
Committee. Upon establishment of a Compensation Committee of the Board of Directors, the membership of such committee shall include at least one (1) Series A Director and Series B Director (as such term is defined under the Company’s
Amended and Restated Certificate of Incorporation, as in effect from time to time). All material compensation decisions of the Company shall be made by the Compensation Committee. None of John C. Huffard, Jr., Renaud M. Deraison and Ronald J. Gula
shall participate in any bonus plan established by the Company unless such participation is approved by the Compensation Committee, which approval shall include the affirmative vote of at least one (1) Series A Directos and Series B Director
who are members of the Compensation Committee. 
 2.7 Termination of Covenants. The covenants set forth in this Section 2 shall
terminate and be of no further force and effect upon the earlier to occur of (i) the closing of the Company’s Initial Public Offering, or (ii) the occurrence of a “Liquidation Event,” as such term is defined under the
Company’s Amended and Restated Certificate of Incorporation, as in effect from time to time. The covenants in Section 2.1 and 2.2 hereof shall also terminate and be of no further force and effect at such time as the Company becomes subject
to the periodic reporting provisions of the Exchange Act. 
 3. Right of First Refusal. 

3.1 Right of First Refusal. The Company hereby grants to each Major Holder the right of first refusal to purchase a pro rata share of
New Securities (as defined in this Section 3.1) which the Company may, from time to time, propose to sell and issue. A Major Holder’s pro rata share, for purposes of this right of first refusal, is the ratio of the number of shares of
Common Stock owned by such Major Holder immediately prior to the issuance of New Securities, assuming full conversion of the Shares and full conversion and exercise of all other convertible securities, rights, options and warrants to acquire Common
Stock owned by such Major Holder, to the total number of shares of Common Stock outstanding immediately prior to the issuance of New Securities, assuming full conversion of the Shares and full conversion and exercise of all outstanding convertible
securities, rights, options and warrants to acquire Common Stock of the Company. For purposes of this Section 3.1, the term “Major Holder” includes any Affiliates of a Major Holder. A Major Holder shall be entitled to apportion the
right of first refusal hereby granted it among itself and its Affiliates in such proportions as it deems appropriate. This right of first refusal shall be subject to the following provisions: 

  
 -20- 

 (a) “New Securities” shall mean any capital stock (including Common Stock
and/or Preferred Stock) of the Company whether now authorized or not, and rights, options or warrants to purchase such capital stock, and securities of any type whatsoever that are, or may become, convertible into capital stock; provided that the
term “New Securities” does not include (i) securities issued or issuable upon the conversion or exercise of convertible or exercisable securities; (ii) securities issued or issuable to employees, directors and officers of, or
consultants or advisors to, the Company pursuant to stock grants, stock option, stock bonus, stock purchase or other employee incentive programs, plans or agreements approved by the Board of Directors, including at least one (1) Series A
Director and Series B Director; (iii) securities issued or issuable in connection with any stock split, stock dividend or recapitalization of the Company; (iv) securities issued or issuable as a dividend or distribution on the Shares;
(v) securities issued or issuable as consideration for (and not for the purpose of capital raising to finance the transaction) bona fide acquisitions of other businesses or technologies by the Company by merger, consolidation, acquisition of
stock or assets or otherwise approved by the Board of Directors of the Company, including at least one (1) Series A Director and Series B Director; (vi) securities issued or issuable to banks or other financial institutions in connection
with bona fide leases, loans, credit lines, guaranties of indebtedness, cash price reductions, debt financings or similar transactions (but excluding capital stock financings) with such banks or financial institutions, in each case, approved by the
Board of Directors of the Company, including at least one (1) Series A Director and Series B Director; (vii) in connection with research, collaboration, manufacturing, supply, licensing, development, OEM, distribution, marketing or other
similar strategic transactions or joint ventures, provided that such transactions are entered into for primarily non-equity financing purposes and are approved by the Board, including at least one
(1) Series A Director and Series B Director; (viii) securities issued or issuable in connection with an Initial Public Offering pursuant to which all outstanding Shares are automatically converted into Common Stock; (ix) securities
issued or issuable in connection with the Series B Purchase Agreement or any contribution agreement pursuant to which any Person acquires Common Stock or Shares as contemplated by the Merger Agreement, dated as of the date hereof, by and between the
Company, Tenable Network Security, Inc., and the other parties thereto; and (x) securities issued in connection with any other transaction in which exemption or waiver of the provisions of this Section 3.1 is approved by the affirmative
vote of at least sixty percent (60%) of the then-outstanding Registrable Securities held by the Major Holders. 
 (b) If the Company
proposes to undertake an issuance of New Securities, it shall give each Major Holder written notice of its intention, describing the type of New Securities, and their price and the general terms upon which the Company proposes to issue the same.
Each Major Holder shall have twenty (20) days after any such notice is given to agree to purchase such Major Holder’s pro rata share of such New Securities for the price and upon the terms specified in the notice by giving written notice
to the Company and stating therein the quantity of New Securities to be purchased. The Company shall promptly, in writing, inform each Major Holder that elects to purchase all of the New Securities available to it (a “Fully-Exercising
Investor”) of any other Major Holder’s failure to do likewise. During the ten (10) day period commencing after such information is given, each Fully-Exercising Investor may elect to purchase that portion of the New Securities for
which Major Holders were entitled to subscribe but which were not subscribed for by the Major Holders that is equal to the proportion that the number of shares of Common Stock owned by such Fully-Exercising Investor, assuming full conversion of the
Shares and full conversion and exercise of all other convertible securities, rights, options and warrants to acquire Common Stock, bears to the total number of shares of Common Stock owned by all Fully-Exercising Investor who wish to purchase some
of the unsubscribed New Securities, assuming full conversion of the Shares and full conversion and exercise of all other convertible securities, rights, options and warrants to acquire Common Stock, or such greater amount of such New Securities as
may be available as a result of any Fully-Exercising Investor not fully exercising their right to acquire additional New Securities. 

  
 -21- 

 (c) If the Major Holders fail to exercise fully the right of first refusal within the periods
provided in Section 3.1(b) hereof, the Company shall have ninety (90) days thereafter to sell or enter into an agreement (pursuant to which the sale of New Securities covered thereby shall be closed, if at all, within thirty (30) days
from the date of such agreement) to sell the New Securities with respect to which the Major Holders’ right of first refusal set forth in this Section 3.1 was not exercised, at a price and upon terms no more favorable to the purchasers
thereof than specified in the Company’s notice to the Major Holders pursuant to Section 3.1(b) hereof. If the Company has not sold the New Securities within the times specified in the prior sentence, the Company shall not thereafter issue
or sell any New Securities without first again offering such securities to the Major Holders in the manner provided in Section 3.1(b) hereof. 

3.2 Transfer or Assignment of Right of First Refusal. The rights granted pursuant to Sections 3.1 may be transferred or assigned by
(a) a Major Holder (other than a Major Institutional Holder) only to a Family Member of such Major Holder or a trust for the benefit of such Major Holder or Family Member made for bona fide estate planning purposes, and (b) a Major
Institutional Holder only to (i) a transferee or assignee who after such transfer or assignment holds not less than 25,000 Registrable Securities (subject to subsequent adjustments for stock splits, stock dividends, reverse stock splits, and
the like); (ii) partners, retired partners, members, retired members or other equity owners or Affiliates of such Major Institutional Holder or to the estate of any such individuals; or (iii) a Family Member of such Major Institutional Holder
or a trust for the benefit of such Major Institutional Holder or Family Member made for bona fide estate planning purposes; provided, however, that in each such case (including with respect to a Major Holder) the Company is given written notice at
the time of or within a reasonable time after such transfer or assignment, stating the name and address of the transferee or assignee and the transferee or assignee of such rights assumes in writing the obligations of such Major Holder under this
Agreement. Notwithstanding the forgoing, the rights granted pursuant to Section 3.1 may not be assigned or otherwise conveyed by the Major Holders or by any subsequent transferee of any such rights to any person or entity that is reasonably and
in good faith determined by the Board of Directors of the Company to be a competitor of the Company; provided that the mere investment by any such prospective transferee that is a Fund Transferee in a Portfolio Company or participation on a
Portfolio Company’s board of directors shall not, in and of itself, cause such prospective Fund Transferee to be deemed a competitor of the Company so long as, in connection with such assignment, the Fund Transferee agrees that no confidential
information provided to such Fund Transferee pursuant to Sections 2.1 and 2.2 shall be distributed to a Portfolio Company. 

  
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 3.3 Termination. The right of first refusal set forth in Section 3.1 hereof shall
terminate and be of no further force and effect upon, the earlier to occur of (a) the closing of the Company’s Initial Public Offering, (b) the occurrence of a Liquidation Event, or (c) at such time as the Company becomes subject
to the periodic reporting provisions of the Exchange Act. 
 4. Miscellaneous 

4.1 Governing Law. This Agreement shall be governed by and construed under the laws of the State of Delaware as applied to agreements
among Delaware residents entered into and to be performed entirely within Delaware. With respect to any disputes arising out of or related to this Agreement, the parties consent to the exclusive jurisdiction of, and venue in, the state and federal
courts located in Delaware. EACH OF THE PARTIES HERETO HEREBY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY WITH RESPECT TO ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN
CONNECTION WITH THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY. Each of the parties hereto (i) certifies that no representative, agent or attorney of any other party has represented, expressly or otherwise, that such other party would
not, in the event of litigation, seek to enforce that foregoing waiver and (ii) acknowledges that it and the other parties hereto have been induced to enter into this Agreement and the transactions contemplated hereby, by, among other things,
the mutual waivers and certifications in this Section 4.1. 
 4.2 Successors and Assigns. Except as otherwise provided herein,
the terms and conditions of this Agreement shall inure to the benefit of and be binding upon the respective successors and assigns of the parties (including permitted transferees of any Registrable Securities). Nothing in this Agreement, express or
implied, is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as expressly provided in this
Agreement. 
 4.3 Entire Agreement; Amendment; Waiver. This Agreement constitutes the entire agreement among the parties with respect
to the subject matter hereof, and no party shall be liable or bound to any other party in any manner by any warranties, representations or covenants except as specifically set forth herein or therein. Any term of this Agreement may be amended,
waived or terminated (either generally or in a particular instance and either retroactively or prospectively) only with the written consent of the Company and holders of sixty percent (60%) of the Registrable Securities (or, in the case of
provisions that grant rights to the Major Holders, sixty percent (60%) of the Registrable Securities held by Major Holders); provided, however, that if any amendment, waiver or termination operates in a manner that materially, disproportionately
(relative to all other Holders) and adversely effects the rights of a Holder, the consent of such Holder shall also be required for such amendment, waiver or termination. Any such amendment, waiver or termination shall be binding on all Holders. In
addition, the Company may waive performance of any obligation owing to it other than the market stand-off obligations under Section 1.13 hereof, as to some or all of the Holders, or agree to accept
alternatives to such performance, without obtaining the consent of any Holder. 

  
 -23- 

 4.4 Notices. Unless otherwise provided, any notice required or permitted under this
Agreement shall be given in writing, addressed (a) if to an Investor, as indicated on the List of Investors attached hereto as Schedule A, or at such other address as such Investor shall have furnished to the Company in writing at least
ten (10) days prior to any notice to be given hereunder, or (b) if to the Company, at its principal office, Attention: Chief Executive Officer, or at such other address as the Company shall furnish to each Investor in writing at least ten
(10) days prior to any notice to be given hereunder. All such notices and other written communications shall be deemed effectively given upon personal delivery to the party to be notified (or upon the date of attempted delivery where delivery
is refused) or, when sent, if sent by electronic mail or facsimile during normal business hours of the recipient, and it not sent during normal business hours, then on the recipient’s next business day, or, if sent by mail, five (5) days after
deposit with the United States Postal Service by certified mail, return receipt requested, postage prepaid, or, if sent by air courier, one (1) day after deposit with a next day air courier, with postage and fees prepaid and addressed to the
party entitled to such notice. If notice is given to the Company or any Investor, a copy shall also be sent to Willkie Farr & Gallagher LLP, 787 Seventh Avenue, New York, NY 10019, Attn: Matthew Guercio. 

4.5 Delays or Omissions. No delay or omission to exercise any right, power or remedy accruing to any party to this Agreement, upon any
breach or default of any other party under this Agreement shall impair any such right, power or remedy of such non-defaulting party, nor shall it be construed to be a waiver of any such breach or default, or
an acquiescence therein, or of or in any similar breach or default thereafter occurring; nor shall any waiver of any single breach or default be deemed a waiver of any other breach or default therefore or thereafter occurring. All remedies, either
under this Agreement or by law or otherwise afforded to any party, shall be cumulative and not alternative. 
 4.6 Severability.
Unless otherwise expressly provided herein, a Holder’s rights hereunder are several rights, not rights jointly held with any of the other Holders. If any provision of this Agreement is held to be illegal or unenforceable under applicable law,
such provision shall be excluded from this Agreement and the balance of the Agreement shall be interpreted as if such provision were so excluded and shall be enforceable in accordance with its terms. 

4.7 Titles and Subtitles. The titles and subtitles used in this Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement. 
 4.8 Counterparts; Facsimile Signatures. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. This Agreement may be executed and delivered by facsimile and upon such delivery the facsimile signature shall be deemed
to have the same effect as if the original signature had been delivered to the other party. 
 4.9 Aggregation of Stock. All
Registrable Securities held or acquired by Affiliates shall be aggregated together for the purpose of determining the availability of any rights under this Agreement. 

  
 -24- 

 4.10 Attorneys’ Fees. If any action at law or in equity is necessary to enforce or
interpret the terms of this Agreement, the prevailing party shall be entitled to reasonable attorneys’ fees, costs and disbursements in addition to any other relief to which such party may be entitled. 

4.11 Third-Party Beneficiaries. The parties hereto acknowledge and agree that all rights and privileges (including approvals and
consents and rights to provide or withhold approval or consent) that may be exercised hereunder by the Investors or some group of Investors or the holders of some requisite percentage or amount of the Shares or Registrable Securities may be
exercised by and for the benefit of any member of Insight or Accel, as applicable, and for their own accounts to the same extent as if such member of Insight or Accel, as applicable, were a party hereto (unless otherwise agreed by each such member,
as applicable). Notwithstanding anything to the contrary in this Agreement, this Section 4.11 may not be amended or modified without the prior written consent of Insight, as it pertains to Insight, or Accel, as it pertains to Accel. 

4.12 Renunciation of Corporate Opportunities. The Company acknowledges that each Accel Director is affiliated with Accel and that each
Insight Director is affiliated with the Insight and that each of Accel and Insight and their respective Affiliates are in the business of making investments in, and have investments in, other corporations, general and limited partnerships, joint
ventures, limited liability companies and other entities, including other businesses similar to (and that may compete with) the Company’s businesses (“Other Businesses”) and, in connection therewith, may have interests in,
participate with, aid and maintain seats on the board of directors of, other such entities. In connection with these activities, a Accel Director or Insight Director may develop opportunities for such other entities and/or encounter business
opportunities that the Company may desire to pursue. The Company hereby agrees that any Accel Director and Insight Director, along with Insight and Accel, shall have the unfettered right to make additional investments in or have relationships with
other entities or businesses, including Other Businesses, independent of their investments in the Company or roles as a director of the Company. To the fullest extent permitted by applicable law, the Company hereby renounces any interest or
expectancy of the Company in, or in being offered an opportunity to participate in, any and all business opportunities that are presented to any Accel Director or Insight Director or to Accel or Insight. 

[Remainder of page intentionally left blank] 

  
 -25- 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement effective as of the day and
year first above written. 
 COMPANY 
 TENABLE
HOLDINGS, INC. 
  

			
	 By
	 	 /s/ Ronald J. Gula

	 Name:
	 	Ronald J. Gula
	 Title:
	 	Chief Executive Officer
		
	Address:	 	7021 Columbia Gateway Drive, Suite 500
		 	Columbia, MD 21046

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 INVESTORS: 
  

			
	 ACCEL GROWTH FUND II L.P.

	
	 By: Accel Growth Fund II Associates L.L.C.

	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	 ACCEL GROWTH FUND II STRATEGIC

	 PARTNERS L.P.

	
	 By: Accel Growth Fund II Associates L.L.C.

	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	
ACCEL GROWTH FUND INVESTORS 2012

	 L.L.C.

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	 ACCEL GROWTH FUND III L.P.

	
	 By: Accel Growth Fund III Associates L.L.C.

	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 ACCEL GROWTH FUND III STRATEGIC

	 PARTNERS L.P.

		
	By:	 	Accel Growth Fund III Associates L.L.C.
	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	
ACCEL GROWTH FUND INVESTORS 2014 L.L.C.

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	 ACCEL XI L.P.

	
	 By: Accel XI Associates L.L.C.

	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact
	
	 ACCEL XI STRATEGIC PARTNERS L.P.

	
	 By: Accel XI Associates L.L.C.

	 Its General Partner

		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	ACCEL INVESTORS 2013 L.L.C.
		
	By:	 	 /s/ Tracy L. Sedlock

		 	Attorney in Fact

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 INVESTORS: 

 

			
	 INSIGHT VENTURE PARTNERS IX, L.P.

	
	 By: Insight Venture Associates IX, L.P., its

	 General Partner

	 By: Insight Venture Associates IX, Ltd., its

	 General Partner

 
			
		
	By:	 	 /s/ Blair Flicker

	Name:	 	
	Title:	 	

 
			
	
	
INSIGHT VENTURE PARTNERS (CAYMAN) IX,

	 L.P.

	
	 By: Insight Venture Associates IX, L.P., its

	 General Partner

	 By: Insight Venture Associates IX, Ltd., its

	 General Partner

 
			
		
	By:	 	 /s/ Blair Flicker

	Name:	 	
	Title:	 	

 
			
	
	
INSIGHT VENTURE PARTNERS (DELAWARE) IX,

	 L.P.

	
	 By: Insight Venture Associates IX, L.P., its

	 General Partner

	 By: Insight Venture Associates IX, Ltd., its

	 General Partner

 
			
		
	By:	 	 /s/ Blair Flicker

	Name:	 	
	Title:	 	

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 INSIGHT VENTURE PARTNERS IX (CO-

	 INVESTORS), L.P. 

	
	 By: Insight Venture Associates IX, L.P., its

	 General Partner

	 By: Insight Venture Associates IX, Ltd., its

	 General Partner

 
			
		
	By:	 	 /s/ Blair Flicker

		 	

 
			
	
	 INSIGHT VENTURE PARTNERS GROWTH-

	 BUYOUT COINVESTMENT FUND, L.P. 

	
	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, L.P., its general partner

	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, Ltd., its general partner

			
		
	By:	 	 /s/ Blair Flicker

 

			
	
	 INSIGHT VENTURE PARTNERS GROWTH-

	
BUYOUT COINVESTMENT FUND (CAYMAN), L.P.

	
	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, L.P., its general partner

	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, Ltd., its general partner

			
		
	By:	 	 /s/ Blair Flicker

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 INSIGHT VENTURE PARTNERS GROWTH-

	
BUYOUT COINVESTMENT FUND (DELAWARE),

	 L.P.

	
	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, L.P., its general partner

	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, Ltd., its general partner

			
		
	By:	 	 /s/ Blair Flicker

	
	 INSIGHT VENTURE PARTNERS GROWTH-

	 BUYOUT COINVESTMENT FUND (B), L.P.

	
	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, L.P., its general partner

	 By: Insight Venture Associates Growth-Buyout

	 Coinvestment, Ltd., its general partner

			
		
	By:	 	 /s/ Blair Flicker

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
	
	FOUNDING OWNERS:
	
	 /s/ Ronald J. Gula

	Ronald J. Gula

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
	
	FOUNDING OWNERS:
	
	 /s/ Renaud M. Deraison

	Renaud M. Deraison

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	FOUNDING OWNERS:
	
	THE THREE SUNS IRREVOCABLE TRUST
	DATED MARCH 2, 2012
		
	By	 	 /s/ Mary Kathryn Braden Huffard

	Name:	 	Mary Kathryn Braden Huffard
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
	
	FOUNDING OWNERS:
	
	 /s/ Mary Kathryn Braden Huffard

	Mary Kathryn Braden Huffard

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	THE POLISH LILAC TRUST DATED
	DECEMBER 27, 2011
		
	 By
	 	 /s/ Cynthia Y. Gula

	 Name:
	 	 Cynthia Y. Gula

	 Title:
	 	 Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE RONALD J. GULA 2013 GRANTOR

RETAINED ANNUITY TRUST DATED
 NOVEMBER 22, 2013

		
	 By
	 	 /s/ Cynthia Y. Gula

	Name:	 	Cynthia Y. Gula
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE RONALD J. GULA 2015 GRANTOR

	 RETAINED ANNUITY TRUST #4 DATED

	 MARCH 31, 2015

		
	By	 	 /s/ Cynthia Y. Gula

	Name:	 	Cynthia Y. Gula
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE RONALD J. GULA 2012 GRANTOR

	 RETAINED ANNUITY TRUST

		
	By	 	 /s/ Cynthia Y. Gula

	Name:	 	Cynthia Y. Gula
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE RENAUD DERAISON 2013 GRANTOR

	 RETAINED ANNUITY TRUST DATED APRIL 5,
2013

 
			
		
	By	 	 /s/ Renaud Deraison

	Name:	 	Renaud Deraison
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE CYNTHIA Y. GULA 2013 GRANTOR

	 RETAINED ANNUITY TRUST DATED

	 DECEMBER 11, 2013

 
			
		
	By	 	 /s/ Ronald J. Gula

	Name:	 	Ronald J. Gula
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 
			
	 FOUNDING OWNERS:

	
	 THE CYNTHIA Y. GULA 2015 GRANTOR

	 RETAINED ANNUITY TRUST #2 DATED

	 MARCH 31, 2015

 
			
		
	By	 	 /s/ Ronald J. Gula

	Name:	 	Ronald J. Gula
	Title:	 	Trustee

  
 TENABLE
HOLDINGS, INC. 
 INVESTORS’ RIGHTS AGREEMENT 

SIGNATURE PAGE 

 SCHEDULE A 

LIST OF INVESTORS (OTHER THAN FOUNDER OWNERS) 
  

	
	 Name and Address

	 Accel Growth Fund II L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel Growth Fund II Strategic

	 Partners L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel Growth Fund Investors 2012

	 L.L.C. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

  
 SA-1 

	
	 Accel Growth Fund III L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel Growth Fund III Strategic

	 Partners L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel Growth Fund Investors 2014,

	 L.L.C. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel XI L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Accel XI Strategic Partners L.P. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

  
 SA-2 

	
	 Accel Investors 2013 L.L.C. 

	 c/o Accel Partners

	 428 University Avenue

	 Palo Alto, CA 94301

	 P: (650) 330-4250

	 F: (650) 330-0750

	 Attention: Rich Zamboldi

	
	 Insight Venture Partners IX, L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners (Cayman) IX, L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners (Delaware) IX, L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners IX (Co-Investors), L.P.

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners Growth-Buyout Coinvestment Fund, L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

  
 SA-3 

	
	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners Growth-Buyout Coinvestment Fund (Cayman), L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners Growth-Buyout Coinvestment Fund (Delaware), L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

	
	 Insight Venture Partners Growth-Buyout Coinvestment Fund (B), L.P. 

	 1114 Avenue of the Americas, 36th Floor

	 New York, NY 10036

	 P: (212) 230-9200

	 F: (212) 230-9272

	 Attention: Michael Triplett

  
 SA-4EX-10.1

 Exhibit 10.1 

TENABLE HOLDINGS, INC. 

2016 STOCK INCENTIVE PLAN 

(Amended and Restated as of January 18, 2017) 

(Amended on February 23, 2017) 

(Amended on February 21, 2018) 
  

	 	1.	PURPOSE. 

 The purpose of the Plan is to assist the Company in attracting,
retaining, motivating, and rewarding certain key employees, officers, directors, and consultants of the Company Group and promoting the creation of long-term value for stockholders of the Company by closely aligning the interests of such individuals
with those of such stockholders. The Plan authorizes the award of Stock-based incentives to Eligible Persons to encourage such persons to expend maximum effort in the creation of stockholder value. 

The Plan replaces the Prior Plans for Awards granted on or after the Effective Date. Awards may not be granted under the Prior Plans beginning
on the Effective Date, but the adoption and effectiveness of the Plan will not affect the terms or conditions of any outstanding grants under the Prior Plans for Awards prior to the Effective Date. The Plan was originally adopted by the Company on
the Effective Date. The current version of the Plan is an amendment and restatement of the Plan, which was approved by the Board on January 18, 2017 (the “Restatement Effective Date”). On February 23, 2017, the Board
approved an amendment to the Plan to increase the number of shares of Stock subject to and reserved for issuance pursuant to the Plan by 2,000,000 shares. On February 21, 2018, the Board approved an amendment to the Plan to increase the number
of shares of Stock subject to and reserved for issuance pursuant to the Plan by 3,000,000 shares. 
  

	 	2.	DEFINITIONS. 

 For purposes of the Plan, the following terms shall be
defined as set forth below: 
 (a) “280G Payments” has the meaning set forth in Section 12 hereof. 

(b) “Award” means any Option, Restricted Stock, or other Stock-based award granted under the Plan. 

(c) “Award Agreement” means an Option Agreement, a Restricted Stock Agreement, or an agreement governing the grant of any
other Stock-based award granted under the Plan. 
 (d) “Board” means the Board of Directors of the Company. 

(e) “Cause” means, with respect to any Participant and in the absence of an Award Agreement or Participant Agreement
otherwise defining Cause, (1) the Participant’s conviction of or indictment for any crime (whether or not involving the Company Group) (A) constituting a felony or (B) that has, or could reasonably be expected to result in, an
adverse impact on the performance of the Participant’s duties to the Service Recipient, or otherwise has, 

 
or could reasonably be expected to result in, an adverse impact on the business or reputation of any member of the Company Group; (2) conduct of the Participant, in connection with his or
her employment or service, that has resulted, or could reasonably be expected to result, in material injury to the business or reputation of any member of the Company Group; (3) any material violation of the policies of the Service Recipient,
including, but not limited to, those relating to sexual harassment or the disclosure or misuse of confidential information, or those set forth in the manuals or statements of policy of the Service Recipient; (4) the Participant’s act(s) of
gross negligence or willful misconduct in the course of his or her employment or service with the Service Recipient; (5) misappropriation by the Participant of any material assets or any business opportunities of any member of the Company
Group; (6) embezzlement or fraud committed by the Participant, at the Participant’s direction, or with the Participant’s prior actual knowledge; or (7) willful neglect in the performance of the Participant’s duties for the
Service Recipient or willful or repeated failure or refusal to perform such duties; provided, however, that with respect to any Termination for Cause relying on clause (2), (3) or (7) of this sentence, to the extent that such act or acts
or failure or failures to act are curable, the Participant shall be given not less than ten (10) days’ written notice of the Service Recipient’s intention to terminate the Participant for Cause, such notice to state in detail the
particular act or acts or failure or failures to act that constitute the grounds on which the proposed Termination for Cause is based, and such Termination shall be effective at the expiration of such ten (10) day notice period unless the
Committee determines in its sole discretion that the Participant has cured or taken steps designed to result in cure of such act or acts or failure or failures to act that give rise to Cause during such period. If, within ninety (90) days
subsequent to the Termination of a Participant for any reason other than by the Service Recipient for Cause, it is discovered that the Participant’s employment or service could have been terminated for Cause pursuant to clause (5) or (6)
of the immediately preceding sentence, such Participant’s employment or service shall, at the discretion of the Committee, be deemed to have been terminated by the Service Recipient for Cause for all purposes under the Plan, and the Participant
shall be required to repay to the Company all amounts received by him or her in connection with Awards following such Termination that would have been forfeited under the Plan had such Termination been by the Service Recipient for Cause. In the
event that there is an Award Agreement or Participant Agreement otherwise defining Cause, “Cause” shall have the meaning provided in such agreement, and a Termination by the Service Recipient for Cause hereunder shall not be deemed
to have occurred unless all applicable notice and cure periods in such Award Agreement or Participant Agreement are complied with. 
 (f)
“Change in Control” means (1) a change in ownership or control of the Company effected through a transaction or series of transactions (other than an offering of Stock to the general public through a registration statement
filed with the Securities and Exchange Commission or similar non–United States regulatory agency) whereby any Person or Group directly or indirectly acquires “beneficial ownership” (within the meaning of Rule 13d-3 under the Exchange Act) of securities of the Company possessing more than fifty percent (50%) of the total combined voting power of the Company’s securities outstanding immediately after such acquisition
and pursuant to which the Investors cease to own, directly or indirectly, at least fifty percent (50%) of the Company Securities issued to the Investors on or before the Effective Date; or (2) the sale or disposition, in one or a series of
related transactions, of all or substantially all of the assets of the Company to any Person or Group. 

  
 2 

 (g) “Code” means the Internal Revenue Code of 1986, as amended from time to
time, including regulations thereunder and successor provisions and regulations thereto. 
 (h) “Committee” means the Board
or such committee thereof consisting of two or more individuals appointed by the Board to administer the Plan. 
 (i)
“Company” means Tenable Holdings, Inc., a Delaware corporation. 
 (j) “Company Group” means the Company,
together with each direct or indirect subsidiary of the Company. 
 (k) “Company Securities” means equity securities of the
Company acquired by the Investors from time to time. 
 (l) “Competitive Activity” means, with respect to any Participant
and in the absence of an Award Agreement or Participant Agreement containing covenants relating to competition with the Service Recipient of the Participant, without the prior written consent of the applicable member(s) of the Company Group,
engaging in any business activity (whether as a principal, partner, joint venturer, agent, employee, salesperson, consultant, independent contractor, director or officer) with any business or entity that, at any time during the six (6) month
period following the Participant’s Termination, provides or seeks to provide, any products or services similar to or related to any products sold or any services provided by the Company Group (including those services or products being
researched or developed during Participant’s employment or other service with the Company Group), where such activity would involve the applicable Participant developing, providing, or performing services that are similar to any services that
such Participant provided to or performed for the Company Group during his or her employment or other service relationship with the Company Group. If a Participant’s Award Agreement or effective Participant Agreement contains covenants relating
to restrictions on competition, engaging in “Competitive Activity” with respect to such Participant shall mean the breach of such restrictive covenants. 

(m) “Corporate Event” has the meaning set forth in Section 11(b) hereof. 

(n) “Data” has the meaning set forth in Section 21(h) hereof. 

(o) “Disability” means, in the absence of an Award Agreement or Participant Agreement otherwise defining Disability, the
permanent and total disability of such Participant within the meaning of Section 22(e)(3) of the Code. In the event that there is an Award Agreement or Participant Agreement defining Disability, “Disability” shall have the
meaning provided in such agreement, and a Termination by reason of a Disability hereunder shall not be deemed to have occurred unless all applicable notice periods in such Award Agreement or Participant Agreement are complied with. 

(p) “Drag-Along Notice” has the meaning set forth in Section 8(b) hereof. 

(q) “Drag-Along Right” has the meaning set forth in Section 8(b) hereof. 

  
 3 

 (r) “Effective Date” means May 13, 2016, the original effective date of the
Plan. 
 (s) “Eligible Person” means (1) each employee of any member of the Company Group, including each such person
who may also be a director of any member of the Company Group, (2) each non-employee director of any member of the Company Group, (3) each other natural person who provides substantial services to
any member of the Company Group, and (4) any natural person who has been offered employment by any member of the Company Group; provided, that such prospective employee may not receive any payment or exercise any right relating to an
Award until such person has commenced employment with any member of the Company Group. An employee on an approved leave of absence may be considered as still in the employ of a member of the Company Group for purposes of eligibility for
participation in the Plan. 
 (t) “Exchange Act” means the Securities Exchange Act of 1934, as amended from time to time,
including rules and regulations thereunder and successor provisions and rules and regulations thereto. 
 (u) “Excise Tax”
has the meaning set forth in Section 12 hereof. 
 (v) “Expiration Date” means, with respect to any Option, the date
upon which the term of such Option expires, as determined under Section 5(b) hereof. 
 (w) “Fair Market Value” means,
as of any date when the Stock is listed on one or more national securities exchanges, the closing price reported on the principal national securities exchange on which such Stock is listed and traded on the date immediately prior to the date of
determination, or, if the closing price is not reported on such date, the closing price on the most recent date on which such closing price is reported. If the Stock is not listed on a national securities exchange, the Fair Market Value shall mean
the amount determined by the Committee in good faith to be the fair market value per share of Stock. For purposes of determining the Fair Market Value of any Stock Equivalents, the Fair Market Value shall be determined in accordance with the
previous two sentences and such value shall be reduced by the applicable exercise or strike price applicable to such Stock Equivalent. 

(x) “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. 
 (y) “Investors” means, collectively, each investment
fund managed by or affiliated with either Insight Venture Management, LLC or Accel Management Co. Inc. or any of their respective affiliates. 

(z) “IPO” means an initial underwritten public offering of the Company’s equity securities pursuant to an effective Form
S-1 or Form F-1 registration statement filed under the Securities Act or similar law or regulation governing the offering and sale of securities in a jurisdiction other
than the United States. 

  
 4 

 (aa) “IPO Date” means the effective date of the registration statement for the
IPO. 
 (bb) “Lock-Up Period” has the meaning set forth in Section 8(a)
hereof. 
 (cc) “Nonstatutory Stock Option” means an Option that by its terms does not qualify or is not intended to
qualify as an Incentive Stock Option. 
 (dd) “Notice” has the meaning set forth in Section 8(d) hereof. 

(ee) “Option” means a conditional right, granted to a Participant under Section 5 hereof, to purchase Stock at a
specified price during a specified time period. 
 (ff) “Option Agreement” means a written agreement between the Company
and a Participant evidencing the terms and conditions of an individual Option grant. 
 (gg) “Parent” means a “parent
corporation,” whether now or hereafter existing, as defined in Section 424(e) of the Code. 
 (hh) “Participant”
means an Eligible Person who has been granted an Award under the Plan or, if applicable, such other person or entity who holds an Award. 

(ii) “Participant Agreement” means an employment or services agreement between a Participant and the Service Recipient that
describes the terms and conditions of such Participant’s employment or service with the Service Recipient and is effective on the applicable date of grant with respect to any Award. 

(jj) “Per Share Drag-Along Purchase Price” has the meaning set forth in Section 8(b)(1) hereof. 

(kk) “Permitted Transfer” means any transfer by a Participant of all or any portion of his or her (1) shares of Stock or
Stock Equivalents (other than any Incentive Stock Options) to (A) any trust established for the sole benefit of such Participant or such Participant’s spouse or direct lineal descendants, (B) any other entity (including an Individual
Retirement Account or similar investment account) in which the direct and beneficial owner of all voting securities of such entity is held by such Participant, (C) such Participant’s heirs, executors, administrators, or personal
representatives upon the death, incompetency, or Disability of such Participant, or (D) subject to approval of the Company or a duly authorized officer of any member of the Company Group, to a person or persons who acquire a proprietary
interest in shares of Stock or Stock Equivalents pursuant to the terms of a domestic relations order, official marital settlement agreement or other divorce or separation instrument as permitted by Treasury Regulation
Section 1.421-1(b)(2), or (2) Incentive Stock Options, for purposes of Section 5(f) below, to any trust if, under Section 671 of the Code and applicable law, the Participant is considered
the sole beneficial owner of the Incentive Stock Options while they are held in the trust. 
 (ll) “Person or Group” means
any “person” (as defined in Section 3(a)(9) of the Exchange Act) or any two or more persons deemed to be one “person” (as used in 

  
 5 

 
Sections 13(d)(3) and 14(d)(2) of the Exchange Act), in each case, other than the Investors, any member of the Company Group, or an employee benefit plan maintained by any member of the Company
Group. 
 (mm) “Plan” means this Tenable Holdings, Inc. 2016 Stock Incentive Plan, as amended from time to time. 

(nn) “Prime Rate” means the rate from time to time published in the “Money Rates” section of The Wall Street
Journal as being the “Prime Rate” (or, if more than one rate is published as the Prime Rate, then the highest of such rates). 

(oo) “Prior Plans” means Company’s 2012 Stock Incentive Plan and the Company’s 2002 Stock Incentive Plan. 

(pp) “Prohibition Event” has the meaning set forth in Section 9(c) hereof. 

(qq) Qualifying Transaction” means a transaction that results in a change in ownership or effective control of a corporation or in
the ownership of a substantial portion of the assets of a corporation, as described in Section 280G(b)(2)(A)(i) of the Code. 
 (rr)
“Repurchase Price” means — 
 (1) on or following the Termination of a Participant other than by the
Service Recipient for Cause, an amount equal to the Fair Market Value of the Stock or Stock Equivalents, as applicable, on the date that the written notice of repurchase is delivered pursuant to Section 9(a) hereof; 

(2) on or following the Termination of a Participant by the Service Recipient for Cause, the lesser of (A) the original
purchase price paid for such shares of Stock or Stock Equivalents, as applicable (as adjusted for any subsequent changes in the outstanding Stock or in the capital structure of the Company) less any dividends or other distributions or bonus
received (or to be received) by the Participant (or any transferee) in respect of the shares of Stock or Stock Equivalents, as applicable (including any cash bonus paid in lieu of an adjustment to an Option) prior to the date of repurchase and
(B) the Fair Market Value of the Stock or the Stock Equivalents, as applicable, on the date that the written notice of repurchase is delivered pursuant to Section 9(a) hereof; provided, however, that if (x) such Termination
occurs after the ten (10) year anniversary of the date of grant of the Award to which the shares of Stock or Stock Equivalents, as applicable, subject to the Repurchase Right relate, and (y) the Award to which the shares of Stock or Stock
Equivalents, as applicable, subject to the Repurchase Right relate is intended to qualify as a “stock right” that does not provide for a “deferral of compensation” within the meaning of Section 409A of the Code, the
Repurchase Price shall instead be the Fair Market Value of the Stock or Stock Equivalents, as applicable, on the date of repurchase; or 

(3) notwithstanding anything contained within clause (1) or (2) above, if a Participant has violated any restrictive
covenant to which he or she is subject to with any member of the Company Group, the Repurchase Price shall be the lesser of (A) the 

  
 6 

 
original purchase price paid for such shares of Stock or Stock Equivalents, as applicable (as adjusted for any subsequent changes in the outstanding shares of Stock or in the capital structure of
the Company) less any dividends or other distributions or bonus received (or to be received) by the Participant (or any transferee) in respect of the shares of Stock or Stock Equivalents, as applicable (including any cash bonus paid in lieu
of an adjustment to an Option) prior to the date of repurchase and (B) the Fair Market Value of the shares of Stock or Stock Equivalents, as applicable, on the date that the written notice of repurchase is delivered pursuant to
Section 9(a) hereof. 
 (ss) “Repurchase Right” has the meaning set forth in Section 9 hereof. 

(tt) “Repurchase Right Exercise Period” means the period commencing on the date of Termination of a Participant with the
Service Recipient for any reason and ending on the IPO Date. 
 (uu) “Repurchase Right Lapse Date” means the earlier to
occur of (1) the IPO Date and (2) a Change in Control resulting in the listing of the Stock on a national securities exchange. 

(vv) “Restricted Stock” means Stock granted to a Participant under Section 6 hereof that is subject to certain
restrictions and to a risk of forfeiture, or issued pursuant to the early exercise of Options. 
 (ww) “Restricted Stock
Agreement” means a written agreement between the Company and a Participant evidencing the terms and conditions of an individual Restricted Stock grant. 

(xx) “Right of First Refusal” has the meaning set forth in Section 8(d) hereof. 

(yy) “Section 280G Approval” means the stockholder approval required pursuant to Section 280G(b)(5)(B) of the Code.

 (zz) “Securities Act” means the Securities Act of 1933, as amended from time to time, including rules and regulations
thereunder and successor provisions and rules and regulations thereto. 
 (aaa) “Service Recipient” means, with respect to
a Participant holding a given Award, the applicable member of the Company Group by which the Participant is, or following a Termination was most recently, principally employed or to which the Participant provides, or following a Termination was most
recently providing, services, as applicable. 
 (bbb) “Stock” means the Company’s common stock, par value $0.01 per
share, and such other securities as may be substituted for such common stock pursuant to Section 11 hereof. 
 (ccc) “Stock
Equivalent” means any shares, warrants, rights, units, calls, options or other securities exchangeable or exercisable for, or convertible into, directly or indirectly, shares of Stock, which, for the avoidance of doubt, includes Options
granted pursuant to Section 5 hereof. 

  
 7 

 (ddd) “Stockholder Representative” has the meaning set forth in
Section 8(b) hereof. 
 (eee) “Subject Shares” has the meaning set forth in Section 8(b) hereof. 

(fff) “Subsidiary” means a “subsidiary corporation,” whether now or hereafter existing, as defined in
Section 424(f) of the Code. 
 (ggg) “Termination” means the termination of a Participant’s employment or
service, as applicable, with the Service Recipient; provided, however, that, if so determined by the Committee at the time of any change in status in relation to the Service Recipient (e.g., a Participant ceases to be an employee and
begins providing services as a consultant, or vice versa), such change in status will not be deemed to be a Termination hereunder. Notwithstanding anything herein to the contrary, a Participant’s change in status in relation to the Service
Recipient (for example, a change from employee to consultant) shall not be deemed a Termination hereunder with respect to any Awards constituting nonqualified deferred compensation subject to Section 409A of the Code that are payable upon a
Termination unless such change in status constitutes a “separation from service” within the meaning of Section 409A of the Code. Unless otherwise determined by the Committee, in the event that any Service Recipient ceases to be a
member of the Company Group (by reason of sale, divestiture, spin-off, or other similar transaction), each Participant that is employed by or provides services to such Service Recipient shall be deemed to have
suffered a Termination hereunder as of the date of the consummation of such transaction, unless the Participant’s employment or service is transferred to another entity that would constitute a Service Recipient immediately following such
transaction. For the avoidance of doubt, in the event that a Participant provides notice of his or her intention to resign at a future date, the Service Recipient may, in its sole and absolute discretion, accelerate such date of Termination without
changing the characterization of such Termination as a resignation by the Participant. 
  

	 	3.	ADMINISTRATION. 

 (a) Authority of the Committee. Except as
otherwise provided below, the Plan shall be administered by the Committee. The Committee shall have full and final authority, in each case subject to and consistent with the provisions of the Plan, to (1) select Eligible Persons to become
Participants, (2) grant Awards, (3) determine the type, number of shares of Stock subject to, other terms and conditions of, and all other matters relating to, Awards, (4) prescribe Award Agreements (which need not be identical for
each Participant) and rules and regulations for the administration of the Plan, (5) construe and interpret the Plan and Award Agreements and correct defects, supply omissions, and reconcile inconsistencies therein, (6) suspend the right to
exercise Awards during any period that the Committee deems appropriate to comply with applicable securities laws, and thereafter extend the exercise period of an Award by an equivalent period of time or such shorter period required by applicable
law, including Section 409A of the Code, and (7) make all other decisions and determinations as the Committee may deem necessary or advisable for the administration of the Plan. Any action of

  
 8 

 
the Committee shall be final, conclusive, and binding on all persons, including, without limitation, each member of the Company Group, Eligible Persons, Participants, and beneficiaries of
Participants. For the avoidance of doubt, the Board shall have the authority to take all actions under the Plan that the Committee is permitted to take. 

(b) Delegation. To the extent permitted by applicable law, the Committee may delegate to officers or employees of any member of the
Company Group, or committees thereof, the authority, subject to such terms as the Committee shall determine, to perform such functions under the Plan, including, but not limited to, administrative functions, as the Committee may determine
appropriate. The Committee may appoint agents to assist it in administering the Plan. Any actions taken by an officer or employee delegated authority pursuant to this Section 3(b) within the scope of such delegation shall, for all purposes
under this Plan, be deemed to be an action taken by the Committee. Notwithstanding the foregoing or any other provision of the Plan to the contrary: (i) any Award granted under the Plan to any Eligible Person who is not an employee of any
member of the Company Group (including any non-employee director of any member of the Company Group) must be expressly approved by the Committee; (ii) no officer may grant an Award to himself or herself;
and (iii) the Committee may not delegate authority to an officer who is acting solely in the capacity of an officer (and not also as a director of the Company) to determine the Fair Market Value pursuant to Section 2(w) hereof. 

(c) Sections 409A and 457A. The Committee shall take into account compliance with Sections 409A and 457A of the Code in connection with
any grant of an Award under the Plan, to the extent applicable. Any payments in respect of an Award constituting nonqualified deferred compensation subject to Section 409A of the Code that are payable upon a Termination shall be delayed for
such period as may be necessary to meet the requirements of Section 409A(a)(2)(B)(i) of the Code. On the first business day following the expiration of such period, the Participant shall be paid, in a single lump sum without interest, an amount
equal to the aggregate amount of all payments delayed pursuant to the preceding sentence, and any remaining payments not so delayed shall continue to be paid pursuant to the payment schedule applicable to such Award. While the Awards granted
hereunder are intended to be structured in a manner to avoid the imposition of any penalty taxes under Sections 409A and 457A of the Code, in no event whatsoever shall the Company Group be liable for any additional tax, interest, or penalties that
may be imposed on a Participant as a result of Section 409A or Section 457A of the Code or any damages for failing to comply with Section 409A or Section 457A of the Code or any similar state or local laws (other than for
withholding obligations or other obligations applicable to employers, if any, under Section 409A or Section 457A of the Code). 
  

	 	4.	SHARES AVAILABLE UNDER THE PLAN. 

(a) Number of Shares Available for Delivery. Subject to adjustment as provided in Section 11 hereof, the total number of shares of
Stock reserved and available for delivery in connection with Awards under the Plan shall be equal to the sum of (1) 14,700,000 plus (2) to the extent that an award outstanding under the Prior Plans as of the Effective Date expires or is
canceled, forfeited, settled in cash, or otherwise terminated without a delivery to the grantee of the full number of shares to which the award related, the number of shares that are cancelled, forfeited or undelivered. Shares of Stock delivered
under the Plan shall consist of 

  
 9 

 
authorized and unissued shares or previously issued shares of Stock reacquired by the Company on the open market or by private purchase. Notwithstanding any other provision of the Plan to the
contrary, the maximum aggregate number of shares of Stock that may be issued under the Plan pursuant to Incentive Stock Options is 188,232, subject to adjustment as provided in Section 11 hereof. 

(b) Share Counting Rules. The Committee may adopt reasonable counting procedures to ensure appropriate counting, avoid double-counting
(as, for example, in the case of tandem or substitute Awards) and make adjustments if the number of shares of Stock actually delivered differs from the number of shares previously counted in connection with an Award. To the extent that an Award
expires or is canceled, forfeited, settled in cash, or otherwise terminated without delivery to the Participant of the full number of shares of Stock to which the Award related, the undelivered shares will again be available for delivery under the
Plan. Shares withheld in payment of the exercise price or taxes relating to an Award and shares equal to the number surrendered in payment of any exercise price or taxes relating to an Award shall not be deemed to constitute shares delivered to the
Participant and shall be deemed to again be available for delivery under the Plan. 
  

	 	5.	OPTIONS. 

 (a) General. Nonstatutory Stock Options may be granted
to Eligible Persons, Incentive Stock Options may be granted only to employees of the Company or any Parent or Subsidiary of the Company. Options may be granted in such form and having such terms and conditions as the Committee shall deem
appropriate. The provisions of Options shall be set forth in Option Agreements, which agreements need not be identical. 
 (b) Term.
The term of each Option shall be set by the Committee at the time of grant; provided, however, that no Option granted hereunder shall be exercisable after, and each Option shall expire, ten (10) years from the date it was granted. In the
case of an Incentive Stock Option granted to a Participant who, at the time the Incentive Stock Option is granted, owns (or is treated as owning under Section 424 of the Code) stock representing more than ten percent (10%) of the total combined
voting power of all classes of stock of the Company (or any Parent or Subsidiary of the Company), the term of the Incentive Stock Option will be five (5) years from the date of grant or such shorter term as may be provided in the Option
Agreement. 
 (c) Exercise Price. The exercise price per share of Stock for each Option shall be set by the Committee at the time of
grant; provided, however, that if an Option is intended to qualify as a “stock right” that does not provide for a “deferral of compensation” within the meaning of Section 409A of the Code, then the applicable exercise
price shall not be less than the Fair Market Value on the date of grant. In addition, in the case of an Incentive Stock Option granted to a Participant who, at the time the Incentive Stock Option is granted, owns (or is treated as owning under
Section 424 of the Code) stock representing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company (or any Parent or Subsidiary of the Company), the applicable exercise price shall not be less than
one hundred ten percent (110%) of the Fair Market Value on the date of grant. Notwithstanding the foregoing provisions of this Section 5(c), Options may be granted with an exercise price of less than one hundred percent (100%) of the Fair
Market Value on the date of grant pursuant to a transaction described in, and in a manner consistent with, Section 424(a) of the Code. 

  
 10 

 (d) Payment for Stock. Payment for shares of Stock acquired pursuant to an Option granted
hereunder shall be made in full upon exercise of the Option in a manner approved by the Committee, which may include any of the following payment methods: (1) in immediately available funds in United States dollars, or by certified or bank
cashier’s check, (2) by delivery of a notice of “net exercise” to the Company, pursuant to which the Participant shall receive the number of shares of Stock underlying the Option so exercised reduced by the number of shares of
Stock equal to the aggregate exercise price of the Option divided by the Fair Market Value on the date of exercise, (3) by delivery of shares of Stock having a Fair Market Value equal to the exercise price, or (4) by any other means
approved by the Committee. Anything herein to the contrary notwithstanding, if the Committee determines that any form of payment available hereunder would be in violation of Section 402 of the Sarbanes-Oxley Act of 2002, such form of payment
shall not be available on or following the date on which the Company (or any of its affiliates) files an initial registration statement for an IPO. 

(e) Vesting. Options shall vest and become exercisable in such manner, on such date or dates, or upon the achievement of performance or
other conditions, in each case, as may be determined by the Committee and set forth in an Option Agreement; provided, however, that notwithstanding any such vesting dates, the Committee may in its sole discretion accelerate the vesting of any
Option at any time and for any reason. Unless otherwise specifically determined by the Committee, the vesting of an Option shall occur only while the Participant is employed by or rendering services to the Service Recipient, and all vesting shall
cease upon the Termination of a Participant for any reason. Notwithstanding the foregoing, the Committee may provide in the Option Agreement that the Participant may elect to exercise all or a portion of an Option before it has otherwise become
exercisable; provided, however, that any shares of Stock so purchased shall be Restricted Stock and shall be subject to (x) a repurchase in favor of the Company during a specified restricted period, with the repurchase price equal to the
lesser of (i) the original purchase price paid for such Stock and (ii) the Fair Market Value of the Stock at the time of repurchase, and (y) such other restrictions as the Committee deems appropriate. 

(f) Transferability of Options. Except in connection with a Permitted Transfer of vested Options, an Option shall not be transferable
except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Participant only by the Participant. To the extent that a Participant wishes to make a Permitted Transfer of vested Options, it shall be a
condition of each such Permitted Transfer that (1) the transferee agrees to be bound by the terms of the Plan and the applicable Option Agreement as though no such transfer had taken place, and (2) the Participant has complied with all
applicable law in connection with such transfer. The Participant and the transferee shall execute any documents reasonably required by the Committee to effectuate such Permitted Transfer. 

(g) Termination of Employment or Service. Except as provided by the Committee in an Option Agreement or otherwise: 

(1) In the event of the Termination of a Participant prior to the Expiration Date for any reason other than (A) by the
Service Recipient for Cause or 

  
 11 

 
(B) by reason of the Participant’s death or Disability, (i) all vesting with respect to such Participant’s Options shall cease, (ii) all of such Participant’s unvested
Options shall terminate as of the date of such Termination, and (iii) each of such Participant’s vested Options shall terminate on the earlier of the applicable Expiration Date and the date that is ninety (90) days after the date of
such Termination. 
 (2) In the event of the Termination of a Participant prior to the Expiration Date by reason of such
Participant’s death or Disability, (A) all vesting with respect to such Participant’s Options shall cease, (B) all of such Participant’s unvested Options shall terminate as of the date of such Termination, and (C) each
of such Participant’s vested Options shall terminate on the earlier of the applicable Expiration Date and the date that is twelve (12) months after the date of such Termination. In the event of a Participant’s death, such
Participant’s Options shall remain exercisable by the person or persons to whom a Participant’s rights under the Options pass by will or by the applicable laws of descent and distribution until the applicable Expiration Date, but only to
the extent that the Options were vested at the time of such Termination. 
 (3) In the event of the Termination of a
Participant prior to the Expiration Date by the Service Recipient for Cause, all of such Participant’s Options (whether or not vested) shall immediately terminate as of the date of such Termination. 

(h) Incentive Stock Option Limitations. Each Option will be designated in the Option Agreement as either an Incentive Stock Option or a
Nonstatutory Stock Option. Notwithstanding such designation, however, to the extent that the aggregate Fair Market Value (determined as of the time of grant) of the shares of Stock with respect to which Incentive Stock Options are exercisable for
the first time by the Participant during any calendar year (under the Plan and/or any other stock option plan of the Company or any Parent or Subsidiary of the Company) exceeds one hundred thousand dollars ($100,000), such Options will be treated as
Nonstatutory Stock Options. For purposes of this Section 5(h), Incentive Stock Options will be taken into account in the order in which they were granted, the Fair Market Value of the shares will be determined as of the time the Option with
respect to such shares is granted, and such calculations will be performed in accordance with Section 422 of the Code. In addition, if an Eligible Person does not remain employed by the Company or any Parent or Subsidiary of the Company at all
times from the time an Incentive Stock Option is granted until three months prior to the date of exercise thereof (or such other period as required by applicable law), such Option shall be treated as a Nonstatutory Stock Option. Neither the Company
nor the Committee shall have any liability to a Participant or any other party, (1) if an Option (or any part thereof) which is intended to qualify as an Incentive Stock Option fails to qualify as an Incentive Stock Option or (2) for any
action or omission by the Committee that causes an Option not to qualify as an Incentive Stock Option, including without limitation, the conversion of an Incentive Stock Option to a Nonstatutory Stock Option or the grant of an Option intended as an
Incentive Stock Option that fails to satisfy the requirements under the Code applicable to an Incentive Stock Option. 

  
 12 

	 	6.	RESTRICTED STOCK. 

 (a) General. Restricted Stock
may be granted to Eligible Persons in such form and having such terms and conditions as the Committee shall deem appropriate. The provisions of separate Awards of Restricted Stock shall be set forth in separate Restricted Stock Agreements, which
agreements need not be identical. Subject to the restrictions set forth in Section 6(b) hereof, and except as otherwise set forth in the applicable Restricted Stock Agreement, the Participant shall generally have the rights and privileges of a
stockholder as to such Restricted Stock, including the right to vote such Restricted Stock. Unless otherwise set forth in a Participant’s Restricted Stock Agreement, cash dividends and stock dividends, if any, with respect to the Restricted
Stock shall be withheld by the Company for the Participant’s account, and shall be subject to forfeiture to the same degree as the shares of Restricted Stock to which such dividends relate. Except as otherwise determined by the Committee, no
interest will accrue or be paid on the amount of any cash dividends withheld. 
 (b) Vesting and Restrictions on Transfer. Restricted
Stock shall vest in such manner, on such date or dates, or upon the achievement of performance or other conditions, in each case as may be determined by the Committee and set forth in a Restricted Stock Agreement; provided, however, that
notwithstanding any such vesting dates, the Committee may in its sole discretion accelerate the vesting of any Award of Restricted Stock at any time and for any reason. Unless otherwise specifically determined by the Committee, the vesting of an
Award of Restricted Stock shall occur only while the Participant is employed by or rendering services to the Service Recipient, and all vesting shall cease upon the Termination of a Participant for any reason. In addition to any other restrictions
set forth in a Participant’s Restricted Stock Agreement, the Participant shall not be permitted to sell, transfer, pledge, or otherwise encumber the Restricted Stock prior to the time the Restricted Stock has vested pursuant to the terms of the
Restricted Stock Agreement. 
 (c) Termination of Employment or Service. Except as provided by the Committee in a Restricted Stock
Agreement or otherwise, in the event of the Termination of a Participant for any reason prior to the time that such Participant’s Restricted Stock has vested, (i) all vesting with respect to such Participant’s Restricted Stock shall
cease, and (ii) as soon as practicable following such Termination, the Company shall repurchase from the Participant, and the Participant shall sell, all of such Participant’s unvested shares of Restricted Stock at a purchase price equal
to the original purchase price paid for the Restricted Stock; provided that, if the original purchase price paid for the Restricted Stock is equal to zero dollars ($0), such unvested shares of Restricted Stock shall be forfeited to the Company by
the Participant for no consideration as of the date of such Termination. 
  

	 	7.	OTHER STOCK-BASED AWARDS. 

The Committee is authorized, subject to limitations under applicable law, to grant to Participants such other Awards that may be denominated or
payable in, valued in whole or in part by reference to, or otherwise based upon, or related to, Stock, as deemed by the Committee to be consistent with the purposes of the Plan. The Committee may also grant Stock as a bonus (whether or not subject
to any vesting requirements or other restrictions on transfer), and may grant other awards in lieu of obligations of any member of the Company Group to pay cash or 

  
 13 

 
deliver other property under the Plan or under other plans or compensatory arrangements, subject to such terms as shall be determined by the Committee. The terms and conditions applicable to such
Awards shall be determined by the Committee and evidenced by Award Agreements, which agreements need not be identical. 
  

	 	8.	RESTRICTIONS ON STOCK; PROXY. 

(a) Prohibition on Transfers. Except (1) as otherwise approved by the Committee, (2) pursuant to subsection (b), (c) or
(d) of this Section 8, or (3) pursuant to Section 9 hereof, shares of Stock acquired by a Participant pursuant to the issuance, vesting, exercise, or settlement of any Award granted hereunder may not be sold, transferred, hedged,
pledged or otherwise disposed of prior to the six (6) month anniversary following the IPO Date (the “Lock-Up Period”). If requested by the underwriters managing any public offering, each
Participant shall execute a separate agreement to the foregoing effect. The Company may impose stop-transfer instructions with respect to the Stock (or securities) subject to the foregoing restriction until the end of such Lock-Up Period. 
 (b) Drag-Along Rights. 

(1) If at any time and from time to time, the Investors desire to (A) sell at least a majority of the Company Securities
beneficially owned by them to one or more third parties, (B) approve any merger, amalgamation, or consolidation of the Company with or into one or more third parties, or (C) approve any sale of all or substantially all of the
Company’s assets to one or more third parties, the Investors shall have the right (the “Drag-Along Right”), but not the obligation, to require each Participant (x) in the case of a transfer of the type referred to in
clause (A), to sell in such sale, in accordance with the terms set forth herein, an equivalent percentage of such Participant’s shares of Stock received in connection with Awards granted hereunder (the “Subject Shares”) for the
Per Share Drag-Along Purchase Price (as defined below), or (y) in the case of a merger, amalgamation, or consolidation or sale of assets or other transaction, referred to in clause (B) or (C), to vote (or act by written consent with
respect to) all of such Participant’s Subject Shares in favor of such transaction and to waive any dissenters’ rights, appraisal rights, or similar rights that such Participant may have under applicable law. Each Participant agrees to take
all steps necessary to enable such Participant to comply with the provisions of this Section 8(b) to facilitate the Investors’ exercise of a Drag-Along Right. As used herein, “Per Share Drag-Along Purchase Price” means the same
consideration per share of Stock as is received by the Investors with respect to their shares of Company Securities in the proposed transaction, including equivalent rights to receive (when and if paid) a proportionate share of any deferred
consideration, earn-out, or escrow funds that may become available to the Investors in connection with such transaction (less, in the case of Options, warrants, or other convertible securities, the exercise or
purchase price thereof and less any applicable employment taxes or withholding obligations); provided, however, that if the Company Securities include preferred stock of the Company, such
per-share price shall be calculated based upon the implied equity value of each share of Stock (less, in the case of Options, warrants, or other convertible securities, the exercise or purchase price thereof)
determined by reference to the per-share price being paid for the preferred stock and after giving effect 

  
 14 

 
to all amounts payable to the holders of preferred stock prior and in preference to the Stock pursuant to the liquidation preference provisions of the Company’s certificate of incorporation
or other applicable organizational documents; provided, further, that if the per-share price being paid for such preferred stock includes any rights to receive a proportionate share of any
deferred consideration, earn-out, or escrow funds that may become available to the holders of preferred stock in connection with the transaction, such amounts shall be considered when determining the implied
equity price of each share of Stock, but any portion of such amount included in the implied equity price of each share of Stock shall not be paid to Participants required to sell Subject Shares pursuant to this Section 8(b) unless and until the
portions of such amount included in the price per share being paid for the preferred stock are paid to the holders of the preferred stock and only to the extent that the holders of the preferred stock have received all amounts payable to the holders
of preferred stock prior and in preference to the Stock pursuant to the liquidation preference provisions of the Company’s certificate of incorporation. 

(2) To exercise the rights granted under this Section 8(b), the Investors shall give each Participant a written notice (a
“Drag-Along Notice”) containing the proposed Per Share Drag-Along Purchase Price with respect to the Subject Shares and the terms of payment and other material terms and conditions of the offer of the proposed transferee(s). Each
Participant shall thereafter be obligated to sell his or her Subject Shares to the proposed transferee(s) or vote (or act by written consent with respect to) his or her Subject Shares in favor of the proposed transaction, as the case may be, in
accordance with Section 8(b)(1) hereof. 
 (3) Each Participant shall execute and deliver such instruments of conveyance
and transfer and take such other actions, including executing any purchase agreement, merger agreement, amalgamation agreement, consolidation agreement, indemnity agreement, escrow agreement, or related documents, as may be reasonably required by
the Investors or the Company in order to carry out the terms and provisions of this Section 8(b). Without limiting the foregoing, in the event that the Investors, in connection with the transaction contemplated by such Drag-Along Right, appoint
a stockholder representative (the “Stockholder Representative”) under the applicable definitive transaction agreements, each Participant shall, (x) consent to (i) the appointment of such Stockholder Representative,
(ii) the establishment of any applicable escrow, expense or similar fund in connection with any indemnification or similar obligations, and (iii) the payment of such Participation’s pro rata portion (from the applicable escrow or
expense fund or otherwise) of any and all reasonable fees and expenses to such Stockholder Representative in connection with such Stockholder Representative’s services and duties in connection with such transaction and its related service as
the representative of the stockholders, and (y) agree to not assert any claim or commence any suit against the Stockholder Representative or any other stockholder with respect to any action or inaction taken or failed to be taken by the
Stockholder Representative in connection with its service as the Stockholder Representative, absent fraud or willful misconduct. 

  
 15 

 (4) Each Participant acknowledges the rights of the Investors to act on behalf of
such Participant pursuant to Section 8(b). At the closing of the proposed transaction, each such Participant shall deliver, against receipt of the consideration payable in such transaction, certificates representing the Subject Shares,
together with executed stock powers or other instruments of transfer acceptable to the Investors and the transferee of such Subject Shares. 

(5) Notwithstanding anything contained in this Section 8(b), in the event that all or a portion of the purchase price for
the Subject Shares being purchased consists of securities, and the sale of such securities to a Participant would require either a registration under the Securities Act or the preparation of a disclosure document pursuant to Regulation D under the
Securities Act (or any successor regulation) or any similar requirement under similar provision of any state or non–United States securities law, then, at the option of the Investors, such Participants may proportionately receive, in lieu of
such securities, the Fair Market Value of some or all of such securities in cash, as determined in good faith by the Board. 

(6) The rights provided in this Section 8(b) shall expire upon the IPO Date. 

(c) Permitted Transfers. Stock acquired upon issuance, vesting, exercise, or settlement of an Award may be transferred in connection
with a Permitted Transfer; provided, however, that it shall be a condition of each such Permitted Transfer that (1) the transferee agrees to be bound by the terms of the Plan and the applicable Award Agreement as though no such transfer
had taken place, and (2) the Participant has complied with all applicable laws in connection with such transfer. The Participant and the transferee shall execute any documents reasonably required by the Committee to effectuate such Permitted
Transfer. 
 (d) Right of First Refusal. Any shares of Stock acquired by a Participant pursuant to the issuance, vesting, exercise,
or settlement of any Award granted hereunder may be sold or transferred prior to the IPO Date, provided that, such shares shall first be offered to the Company as follows (the “Right of First Refusal”): 

(1) The Participant shall promptly deliver a notice (“Notice”) to the Company stating (i) the
Participant’s bona fide intention to sell or transfer such shares of Stock, (ii) the number of such shares of Stock to be sold or transferred, and the basic terms and conditions of such sale or transfer, (iii) the price for which the
Participant proposes to sell or transfer such shares of Stock, (iv) the name of the proposed purchaser or transferee, and (v) proof satisfactory to the Company that the proposed sale or transfer will not violate any applicable U.S.
federal, state or foreign securities laws. The Notice shall be signed by both the Participant and the proposed purchaser or transferee and must constitute a binding commitment subject to the Company’s Right of First Refusal as set forth herein.

 (2) Within thirty (30) days after receipt of the Notice, the Company may elect to purchase all or any portion of the
shares of Stock to which the Notice refers, at the price per share specified in the Notice. If the Company elects not to purchase all or 

  
 16 

 
any portion of the shares of Stock, the Company may assign its right to purchase all or any portion of the shares of Stock. The assignees may elect within thirty (30) days after receipt by
the Company of the Notice to purchase all or any portion of the shares of Stock to which the Notice refers, at the price per share of Stock specified in the Notice. An election to purchase shall be made by written notice to the Participant. Payment
for shares of Stock purchased pursuant to this Section 8(d) shall be made within thirty (30) days after receipt by the Company of the Notice and, at the option of the Company, may be made by cancellation of all or a portion of outstanding
indebtedness, if any, or in cash or both. 
 (3) If all or any portion of the shares of Stock to which the Notice refers are
not elected to be purchased, as provided in Section 8(d)(2), the Participant may sell those shares of Stock to any person named in the Notice at the price specified in the Notice, provided that such sale or transfer complies with
Section 8(d)(7) hereof and is consummated within sixty (60) days of the date of said Notice to the Company, and provided, further, that any such sale is made in compliance with applicable U.S. federal, state and foreign securities laws and
not in violation of any other contractual restrictions to which the Participant is bound. The third-party purchaser shall be bound by, and shall acquire the shares of Stock subject to, the provisions of this Plan and the applicable Award Agreement
as though no such transfer had taken place, including the Company’s Drag-Along Rights, Right of First Refusal and Repurchase Right. 

(4) Any proposed transfer on terms and conditions different from those set forth in the Notice, as well as any subsequent
proposed transfer shall again be subject to the Company’s Right of First Refusal and shall require compliance with the procedures described in this Section 8(d). 

(5) The Participant agrees to cooperate affirmatively with the Company, to the extent reasonably requested by the Company, to
enforce rights and obligations pursuant to this Plan. 
 (6) Notwithstanding the above, neither the Company nor any assignee
of the Company under this Section 8(d) shall have any right under this Section 8(d) at any time subsequent to the IPO Date. 

(7) The Company may object to the proposed transfer of the Participant’s shares of Stock to a proposed purchaser or
transferee for the following reasons: (i) the Participant’s sale will be to a direct competitor of the Company or to any of its shareholders; or (ii) the proposed transfer will jeopardize or compromise the Company’s position with
regard to any existing or proposed agreements or contracts or renewals thereof. 
 (8) This Section 8(d) shall not apply
to any Permitted Transfer. 
 (e) Grant of Irrevocable Proxy. As a condition of the grant of any Award under the Plan, each
Participant shall grant to the Investors, acting jointly, the Participant’s irrevocable proxy, and appoint the Investors, or any designee or nominee of the Investors, as the 

  
 17 

 
Participant’s attorney-in-fact (with full power of substitution and resubstitution), for and in his or her
name, place, and stead, to (1) vote or act by written consent with respect to the Subject Shares (whether or not vested) now or hereafter owned by the Participant (or any transferee), including the right to sign such Participant’s name, as
a stockholder, to any consent, certificate, or other document relating to the Company that applicable law may require, in connection with any and all matters (other than any amendment to the Plan that would require stockholder approval), including,
without limitation, the election of directors and the sale or transfer of any Subject Shares as contemplated by this Section 8, and (2) take any and all action necessary to sell or otherwise transfer any Subject Shares as contemplated by
this Section 8. Such proxy shall be coupled with an interest, and the Participant will take such further action or execute such other instruments as may be necessary to effectuate the intent of this proxy. In the event that any or all
provisions of this Section 8(d) are determined to be unenforceable, each Participant shall grant a proxy that, to the fullest extent permitted by applicable law, preserves the intent of and provides the Investors with substantially the same
benefits of this Section 8(d). The proxy described in this subsection (d) shall terminate upon the IPO Date. 
 (f)
Stockholders’ or Similar Agreement. Except as provided by the Committee in an Award Agreement or otherwise, in the event that a Participant is a party to any stockholders’ or similar agreement with the Company and/or the Investors
containing similar provisions to those set forth in this Section 8, the provisions of this Section 8 shall continue to apply to such Participant and any shares of Stock acquired pursuant to any Award hereunder, and shall be in addition to,
and not in lieu of, the terms and conditions of such stockholders’ or similar agreement. 
  

	 	9.	REPURCHASE RIGHTS UPON TERMINATION. 

(a) Company Repurchase Right. If, prior to the Repurchase Right Lapse Date, a Participant undergoes a Termination with the Service
Recipient for any reason, then at any time during the Repurchase Right Exercise Period, in addition to any repurchase right or obligation of the Company with respect to unvested shares of Restricted Stock as provided in Section 6 hereof, the
Company shall have the right to repurchase the shares of Stock and Stock Equivalents received by the Participant pursuant to Awards granted hereunder at a per-share price equal to the Repurchase Price (the
“Repurchase Right”). The Repurchase Right shall be exercisable upon written notice to the Participant indicating the number of shares of Stock and/or Stock Equivalents to be repurchased and the date on which the repurchase is to be
effected, such date to be not more than thirty (30) days after the date of such notice; provided, however, that except in extraordinary circumstances, as determined by the Committee, the Company shall not exercise the Repurchase Right
with respect to Stock acquired pursuant to an Award or Stock Equivalents prior to (1) the six (6) month anniversary of the date an Award not subject to exercise or deferred settlement vests or (2) the six (6) month anniversary of
the date an Award that is subject to exercise or deferred settlement is exercised or settled. To the extent not otherwise held in book entry form by the Company, the certificates representing the shares of Stock and/or Stock Equivalents to be
repurchased shall be delivered to the Company prior to the close of business on the date specified for the repurchase. 

  
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 (b) Payment of Repurchase Price. 

(1) If the Company exercises the Repurchase Right following the Termination of a Participant other than by the Service
Recipient for Cause, the aggregate Repurchase Price shall be paid in a lump sum at the time of repurchase. 
 (2) If the
Company exercises the Repurchase Right following the Termination of a Participant by the Service Recipient for Cause, the Company shall be permitted to issue a promissory note equal to the aggregate Repurchase Price in lieu of a cash payment;
provided, however, that such promissory note shall have a maturity date that does not exceed three (3) years from the date of such repurchase, shall bear simple interest of not less than the Prime Rate in effect on the date of such
repurchase, and shall be payable as to interest in equal monthly installments during the term of the note and as to principal on the maturity date. 

(c) Delay of Repurchase. Notwithstanding anything contained in this Section 9 to the contrary, in the event that any repurchase
described herein would result in a default under any applicable financing documents of any member of the Company Group, or would otherwise be prohibited by applicable law (as applicable, a “Prohibition Event”), commencement of the
applicable Repurchase Right Exercise Period shall be delayed until the Prohibition Event ceases to exist, but in no event shall such delay extend for more than eighteen (18) months. Without limiting the foregoing, at any time prior to the
Repurchase Right Lapse Date, the Company shall be permitted to assign the Repurchase Right to the Investors. 
 (d) Participant
Representations. In connection with any repurchase of shares of Stock or Stock Equivalents pursuant to this Section 9, the Company will be entitled to receive customary representations and warranties from the Participant regarding the
repurchase of such shares of Stock or Stock Equivalents as may be reasonably requested by the Company, including, but not limited to, the representation that the Participant has good and marketable title to such shares of Stock or Stock Equivalents
to be transferred free and clear of all liens, claims, and other encumbrances. 
  

	 	10.	COMPETITIVE ACTIVITIES. 

 Notwithstanding anything
contained in the Plan to the contrary and to the extent permitted by applicable law, except as otherwise provided by the Committee in an Award Agreement or otherwise, in the event that a Participant engages in any Competitive Activity during the
term of such Participant’s employment or service with the Service Recipient or during the six (6) month period following the Termination of such Participant for any reason, the Committee may determine, in its sole discretion, to
(a) require all Awards held by such Participant to be immediately forfeited and returned to the Company without additional consideration, (b) require all shares of Stock acquired upon the issuance, vesting, exercise, or settlement of
Awards within the twelve (12) month period prior to the date of such Competitive Activity to be immediately forfeited and returned to the Company without additional consideration, and (c) to the extent that such Participant received any
profit from the sale of any Stock underlying an Award within the twelve (12) month period prior to the date of such Competitive Activity, require that such Participant promptly repay to the Company any profit received pursuant to such sale.

  
 19 

	 	11.	ADJUSTMENT FOR RECAPITALIZATION, MERGER, ETC. 

(a) Capitalization Adjustments. The aggregate number of shares of Stock that may be delivered in connection with Awards (as set forth in
Section 4 hereof), the number of shares of Stock covered by each outstanding Award, and the price per share of Stock underlying each such Award shall be equitably and proportionally adjusted or substituted, as determined by the Committee, as to
the number, price, or kind of a share of Stock or other consideration subject to such Awards (1) in the event of changes in the outstanding Stock or in the capital structure of the Company by reason of stock dividends, stock splits, reverse
stock splits, recapitalizations, reorganizations, mergers, amalgamations, consolidations, combinations, exchanges, or other relevant changes in capitalization occurring after the date of grant of any such Award (including any Corporate Event); (2)
in connection with any extraordinary dividend declared and paid in respect of shares of Stock, whether payable in the form of cash, stock, or any other form of consideration; or (3) in the event of any change in applicable laws or circumstances
that results in or could result in, in either case, as determined by the Committee in its sole discretion, any substantial dilution or enlargement of the rights intended to be granted to, or available for, Participants in the Plan. In no event shall
any adjustments be made in connection with the conversion of one or more outstanding shares of preferred stock of the Company into shares of Stock. 

(b) Corporate Events. Notwithstanding the foregoing, except as provided by the Committee in an Award Agreement or otherwise, in
connection with (1) a merger, amalgamation, or consolidation involving the Company in which the Company is not the surviving corporation, (2) a merger, amalgamation, or consolidation involving the Company in which the Company is the
surviving corporation but the holders of shares of Stock receive securities of another corporation or other property or cash, (3) a Change in Control, or (4) the reorganization or liquidation of the Company (each, a “Corporate
Event”), the Committee may, in its discretion, provide for any one or more of the following: 
 (1) The assumption
or substitution of any or all Awards in connection with such Corporate Event, in which case the Awards shall be subject to the adjustment set forth in subsection (a) above, and to the extent that such Awards vest subject to the achievement of
performance objectives or criteria, such objectives or criteria shall be adjusted appropriately to reflect the Corporate Event; 

(2) The acceleration of vesting of any or all Awards, subject to the consummation of such Corporate Event; 

(3) The cancellation of any or all Awards (whether vested or unvested) as of the consummation of such Corporate Event, together
with the payment to the Participants holding vested Awards (including any Awards that would vest upon the Corporate Event but for such cancellation) so canceled of an amount in respect of cancellation based upon the
per-share consideration being paid for the Stock in connection with such Corporate Event, less, in the case of Options and other Awards subject to exercise, the applicable exercise price; provided,
however, that holders of Options and other Awards subject to exercise shall be entitled to consideration in respect of cancellation of such Awards only if the per-share consideration less the applicable
exercise price is greater than zero dollars ($0), and to the extent that the per-share consideration is less than or equal to the applicable exercise price, such Awards shall be canceled for no consideration;

  
 20 

 (4) The cancellation of any or all Options and other Awards subject to exercise
(whether vested or unvested) as of the consummation of such Corporate Event; provided, that, all Options and other Awards to be so cancelled pursuant to this paragraph (4) shall first become exercisable for a period of at least ten
(10) days prior to such Corporate Event, with any exercise during such period of any unvested Options or other Awards to be (A) contingent upon and subject to the occurrence of the Corporate Event, and (B) effectuated by such means as
are approved by the Committee; and 
 (5) The replacement of any or all Awards (other than Awards that are intended to
qualify as “stock rights” that do not provide for a “deferral of compensation” within the meaning of Section 409A of the Code) with a cash incentive program that preserves the value of the Awards so replaced (determined as
of the consummation of the Corporate Event), with subsequent payment of cash incentives subject to the same vesting conditions as applicable to the Awards so replaced and payment to be made within thirty (30) days of the applicable vesting
date. 
 Payments to holders pursuant to paragraph (3) above shall be made in cash or, in the sole discretion of the Committee, in the form of such
other consideration necessary for a Participant to receive property, cash, or securities (or a combination thereof) as such Participant would have been entitled to receive upon the occurrence of the transaction if the Participant had been,
immediately prior to such transaction, the holder of the number of shares of Stock covered by the Award at such time (less any applicable exercise price). In addition, in connection with any Corporate Event, prior to any payment or adjustment
contemplated under this subsection (b), the Committee may require a Participant to (A) represent and warrant as to the unencumbered title to his or her Awards, (B) bear such Participant’s
pro-rata share of any post-closing indemnity obligations and be subject to the same post-closing purchase price adjustments, escrow terms, offset rights, holdback terms, and similar conditions as the other
holders of Stock, and (C) deliver customary transfer documentation as reasonably determined by the Committee. 
 The Committee need not take the same
action or actions with respect to all Awards or portions thereof or with respect to all Participants. The Committee may take different actions with respect to the vested and unvested portions of an Award. 

(c) Fractional Shares. Any adjustment provided under this Section 11 may, in the Committee’s discretion, provide for the
elimination of any fractional share that might otherwise become subject to an Award. 
  

	 	12.	SECTION 280G OF THE CODE; STOCKHOLDER APPROVAL. 

Notwithstanding anything herein to the contrary, unless the Section 280G Approval has been obtained, if in connection with a Qualifying
Transaction a Participant becomes entitled to benefits under the Plan (including, but not limited to, with respect to any vesting, settlement, or payment of an Award) that would result in a “parachute payment” (as defined in

  
 21 

 
Section 280G(b)(2) of the Code), after taking into account any other payments in the nature of compensation that a Participant would have a right to receive from the Company and any other
“person” (as defined in Section 3(a)(9) of the Exchange Act) that are contingent upon such Qualifying Transaction (collectively, the “280G Payments”) and such 280G Payments will be subject to the tax (the
“Excise Tax”) imposed by Section 4999 of the Code, the Company shall pay to the Participant the greatest of the following, whichever gives the Participant the highest net after-tax amount
(after taking into account federal, state, local and social security taxes at the maximum marginal rates (including the Excise Tax)): (x) the full value of such 280G Payments or (y) one dollar less than the amount of any 280G Payments that
would subject the Participant to the Excise Tax. 
 Prior to the occurrence of a Qualifying Transaction, the Company shall use its
commercially reasonable best efforts to submit to stockholders for Section 280G Approval the acceleration of vesting, settlement, or payments that would not occur pursuant to the previous sentence absent such Section 280G Approval. 

 

	 	13.	USE OF PROCEEDS. 

 The proceeds received
from the sale of Stock pursuant to the Plan shall be used for general corporate purposes. 
  

	 	14.	RIGHTS AND PRIVILEGES AS A STOCKHOLDER. 

Except as otherwise specifically provided in the Plan, no person shall be entitled to the rights and privileges of Stock ownership in respect
of shares of Stock that are subject to Awards hereunder until such shares have been issued to that person. 
  

	 	15.	EMPLOYMENT OR SERVICE RIGHTS. 

No individual shall have any claim or right to be granted an Award under the Plan or, having been selected for the grant of an Award, to be
selected for the grant of any other Award. Neither the Plan nor any action taken hereunder shall be construed as giving any individual any right to be retained in the employ or service of any member of the Company Group. 

 

	 	16.	COMPLIANCE WITH LAWS. 

 (a) Delivery of
shares of Stock. The obligation of the Company to deliver Stock upon issuance, vesting, exercise, or settlement of any Award shall be subject to all applicable laws, rules, and regulations, and to such approvals by governmental agencies as may
be required. Notwithstanding any terms or conditions of any Award to the contrary, the Company shall be under no obligation to offer to sell or to sell, and shall be prohibited from offering to sell or selling, any shares of Stock pursuant to an
Award unless such shares have been properly registered for sale with the Securities and Exchange Commission pursuant to the Securities Act (or with a similar non–United States regulatory agency pursuant to a similar law or regulation) or unless
the Company has received an opinion of counsel, satisfactory to the Company, that such shares may be offered or sold without such registration pursuant to an available exemption therefrom and the terms and conditions of such exemption have been
fully complied with. The Company shall be under no obligation to register for sale or resale under the 

  
 22 

 
Securities Act any of the shares of Stock to be offered or sold under the Plan or any shares of Stock to be issued upon exercise or settlement of Awards. If the shares of Stock offered for sale
or sold under the Plan are offered or sold pursuant to an exemption from registration under the Securities Act, the Company may restrict the transfer of such shares and may legend the Stock certificates representing such shares in such manner as it
deems advisable to ensure the availability of any such exemption. 
 (b) Investment Assurances. The Committee may require a
Participant, as a condition of exercising or acquiring Stock under any Award, (1) to give written assurances satisfactory to the Committee as to the Participant’s knowledge and experience in financial and business matters and/or to employ
a purchaser representative reasonably satisfactory to the Committee who is knowledgeable and experienced in financial and business matters and that he or she is capable of evaluating, alone or together with the purchaser representative, the merits
and risks of exercising the Award; and (2) to give written assurances satisfactory to the Committee stating that the Participant is acquiring Stock subject to the Award for the Participant’s own account and not with any present intention
of selling or otherwise distributing the Stock. The foregoing requirements, and any assurances given pursuant to such requirements, will be inoperative (A) following the IPO Date, or (B) if, as to any particular requirement, a
determination is made by counsel for the Company that such requirement need not be met in the circumstances under the then applicable securities laws. 
  

	 	17.	WITHHOLDING OBLIGATIONS. 

 As a condition to
the issuance, vesting, exercise, or settlement of any Award, the Committee may require that a Participant satisfy, through deduction or withholding from any payment of any kind otherwise due to the Participant, or through such other arrangements as
are satisfactory to the Committee, the amount of all federal, state, and local income and other taxes of any kind required or permitted to be withheld in connection with such issuance, vesting, exercise, or settlement. The Committee, in its
discretion, may permit shares of Stock to be used to satisfy tax withholding requirements, and such shares shall be valued at their Fair Market Value as of the issuance, vesting, exercise, or settlement date of the Award, as applicable; provided,
however, that the aggregate Fair Market Value of the number of shares of Stock that may be used to satisfy tax withholding requirements may not exceed the minimum statutorily required withholding amount with respect to such Award. 

 

	 	18.	AMENDMENT OF THE PLAN OR AWARDS. 

(a) Amendment of Plan. The Board may amend the Plan at any time and from time to time. 

(b) Amendment of Awards. The Board or the Committee may amend the terms of any one or more Awards at any time and from time to time.

 (c) Addenda. The Board may approve such addenda to the Plan as it may consider necessary or appropriate for the purpose of granting
Awards to Eligible Persons, which Awards may contain such terms and conditions as the Board deems necessary or appropriate to accommodate differences in local law, tax policy or custom, which, if so required under

  
 23 

 
applicable laws, may deviate from the terms and conditions set forth in the Plan. The terms of any such addenda shall supersede the terms of the Plan to the extent necessary to accommodate such
differences but shall not otherwise affect the terms of the Plan as in effect for any other purpose. 
 (d) Stockholder Approval; No
Impairment. Notwithstanding anything herein to the contrary, no amendment to the Plan or any Award shall be effective without stockholder approval to the extent that such approval is required pursuant to applicable law or the applicable rules of
each national securities exchange on which the Stock is listed. Additionally, no amendment to the Plan or any Award shall materially and disproportionately impair a Participant’s rights under any Award unless the Participant consents in writing
(it being understood that no action taken by the Board or the Committee that is expressly permitted under the Plan, including, without limitation, any actions described in Section 11 hereof, shall constitute an amendment to the Plan or an Award
for such purpose). Notwithstanding the foregoing, subject to the limitations of applicable law, if any, and without an affected Participant’s consent, the Board or the Committee may amend the terms of the Plan or any one or more Awards from
time to time as necessary to bring such Awards into compliance with applicable law, including, without limitation, Section 409A of the Code. 

(e) Repricing of Awards Without Stockholder Approval. The repricing of Awards shall be expressly permitted without stockholder
approval. For this purpose, a “repricing” means any of the following (or any other action that has the same effect as any of the following): (1) changing the terms of an Award to lower its exercise price (other than on account of capital
adjustments resulting from share splits, etc., as described in Section 11(a) hereof), (2) any other action that is treated as a repricing under generally accepted accounting principles, and (3) repurchasing for cash or canceling an Award
in exchange for another Award at a time when its exercise price is greater than the Fair Market Value of the underlying Stock, unless the cancellation and exchange occurs in connection with an event set forth in Section 11(b) hereof. 

 

	 	19.	TERMINATION OR SUSPENSION OF THE PLAN. 

The Board may suspend or terminate the Plan at any time. Unless sooner terminated, the Plan shall terminate on the day before the tenth (10th) anniversary of the latest to occur of (a) the date the Plan is adopted by the Board, (b) the date the Plan is approved by the Company’s stockholders, to the extent applicable,
(c) the most recent date on which an increase to the number of shares of Stock reserved for issuance pursuant to Section 4(a) hereof is adopted by the Board, and (d) the most recent date on which an increase to the number of shares of
Stock reserved for issuance pursuant to Section 4(a) hereof is approved by the Company’s stockholders, to the extent applicable. No Awards may be granted under the Plan while the Plan is suspended or after it is terminated; provided,
however, that following any suspension or termination of the Plan, the Plan shall remain in effect for the purpose of governing all Awards then outstanding hereunder until such time as all Awards under the Plan have been terminated, forfeited,
or otherwise canceled, or earned, exercised, settled, or otherwise paid out in accordance with their terms. 

  
 24 

	 	20.	EFFECTIVE DATE OF THE PLAN. 

The Plan is effective as of the Effective Date. 
  

	 	21.	MISCELLANEOUS. 

 (a) Certificates. Stock acquired pursuant to
Awards granted under the Plan may be evidenced in such a manner as the Committee shall determine. If certificates representing Stock are registered in the name of the Participant, the Committee may require that (1) such certificates bear an
appropriate legend referring to the terms, conditions, and restrictions applicable to such Stock, (2) the Company retain physical possession of the certificates, and (3) the Participant deliver a stock power to the Company, endorsed in
blank, relating to the Stock. Notwithstanding the foregoing, unless otherwise determined by the Committee, in its sole discretion, the Stock shall be held in book-entry form rather than delivered to the Participant pending the release of any
applicable restrictions. 
 (b) Corporate Action Constituting Grant of Awards. Corporate action constituting a grant by the Company
of an Award to any Participant will be deemed completed as of the date of such corporate action, unless otherwise determined by the Committee, regardless of when the instrument, certificate, or letter evidencing the Award is communicated to, or
actually received or accepted by, the Participant. In the event that the corporate records (e.g., Committee consents, resolutions or minutes) documenting the corporate action constituting the grant contain terms (e.g., exercise price,
vesting schedule or number of shares of Stock) that are inconsistent with those in the Award Agreement as a result of a clerical error in connection with the preparation of the Award Agreement, the corporate records will control and the Participant
will have no legally binding right to the incorrect term in the Award Agreement. 
 (c) Clawback/Recoupment Policy. Notwithstanding
anything contained herein to the contrary, all Awards granted under the Plan shall be subject to any incentive compensation clawback or recoupment policy as may be adopted by the Board in connection with or following an IPO to comply with applicable
law or the rules and regulations of the stock exchange to which the Company is subject or which it is reasonably expected to become subject (including for this purpose proposed rules and regulations), as may be amended from time to time. No such
policy, adoption, or amendment shall in any event require the prior consent of any Participant. No recovery of compensation under such a clawback policy will be an event giving rise to a right to resign for “good reason” or
“constructive termination” (or similar term) under any agreement with any member of the Company Group. 
 (d) Participants
Outside of the United States. The Committee may modify the terms of any Award under the Plan made to or held by a Participant who is then a resident, or is primarily employed or providing services, outside of the United States in any manner
deemed by the Committee to be necessary or appropriate in order that such Award shall conform to laws, regulations, and customs of the country in which the Participant is then a resident or primarily employed or providing services, or so that the
value and other benefits of the Award to the Participant, as affected by non–United States tax laws and other restrictions applicable as a result of the Participant’s residence, employment, or providing services abroad, shall be comparable
to the value of such Award to a Participant who is a resident, or is primarily employed or providing 

  
 25 

 
services, in the United States. An Award may be modified under this Section 21(d) in a manner that is inconsistent with the express terms of the Plan, so long as such modifications will not
contravene any applicable law or regulation. Additionally, the Committee may adopt such procedures and sub-plans as are necessary or appropriate to permit participation in the Plan by Eligible Persons who are
non–United States nationals or are primarily employed or providing services outside the United States. 
 (e) Change in Time
Commitment. In the event a Participant’s regular level of time commitment in the performance of his or her services for the Company or any member of the Company Group is reduced (for example, and without limitation, if the Participant is an
employee of the Company and the employee has a change in status from a full-time employee to a part-time employee) after the date of grant of any Award to the Participant, the Committee has the right, in its sole discretion, to (i) make a
corresponding reduction in the number of shares of Stock subject to any portion of such Award that is scheduled to vest or become payable after the date of such change in time commitment, and (ii) in lieu of or in combination with such a
reduction, extend the vesting or payment schedule applicable to such Award. In the event of any such reduction, the Participant will have no right with respect to any portion of the Award that is so reduced or extended. 

(f) Electronic Delivery. Any reference herein to a “written” agreement or document will include any agreement or document
delivered electronically or posted on the Company’s intranet (or other shared electronic medium controlled by the Company to which the Participant has access). 

(g) Non-Exempt Employees. If an Option is granted to an employee of the Company Group in the
United States who is a non-exempt employee for purposes of the Fair Labor Standards Act of 1938, as amended, the Option will not be first exercisable for any shares of Stock until at least six (6) months
following the date of grant of the Option (although the Option may vest prior to such date). Consistent with the provisions of the Worker Economic Opportunity Act, (1) if such non-exempt employee of the
Company Group dies or suffers a Disability, (2) upon a Corporate Event in which such Option is not assumed, continued, or substituted, (3) upon a Change in Control, or (4) upon the Participant’s retirement (as such term may be
defined in the applicable Award Agreement or a Participant Agreement, or, if no such definition exists, in accordance with the Company’s then current employment policies and guidelines), the vested portion of any Options may be exercised
earlier than six (6) months following the date of grant. The foregoing provision is intended to operate so that any income derived by a non-exempt employee in connection with the exercise or vesting of an
Option will be exempt from his or her regular rate of pay. To the extent permitted and/or required for compliance with the Worker Economic Opportunity Act to ensure that any income derived by a non-exempt
employee in connection with the exercise, vesting or issuance of any shares under any other Award will be exempt from the employee’s regular rate of pay, the provisions of this Section 21(g) will apply to all Awards. 

(h) Data Privacy. As a condition of receipt of any Award, each Participant explicitly and unambiguously consents to the collection,
use, and transfer, in electronic or other form, of personal data as described in this subsection by and among, as applicable, the Company Group for the exclusive purpose of implementing, administering, and managing the Plan and

  
 26 

 
Awards and the Participant’s participation in the Plan. In furtherance of such implementation, administration, and management, the Company Group may hold certain personal information about a
Participant, including, but not limited to, the Participant’s name, home address, telephone number, date of birth, social security or insurance number or other identification number, salary, nationality, job title(s), information regarding any
securities of the Company Group held by such Participant, and details of all Awards (the “Data”). In addition to transferring the Data amongst themselves as necessary for the purpose of implementation, administration, and management
of a Participant’s participation in the Plan, each member of the Company Group may transfer the Data to any third parties assisting the Company in the implementation, administration, and management of the Plan and Awards and the
Participant’s participation in the Plan. Recipients of the Data may be located in the Participant’s country or elsewhere, and the Participant’s country and any given recipient’s country may have different data privacy laws and
protections. By accepting an Award, each Participant authorizes such recipients to receive, possess, use, retain, and transfer the Data, in electronic or other form, for the purposes of assisting the Company in the implementation, administration,
and management of the Plan and Awards and such 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 the Company or the Participant may elect to
deposit any shares of Stock. The Data related to a Participant will be held only as long as is necessary to implement, administer, and manage the Plan and Awards and the Participant’s participation in the Plan. A Participant may, at any time,
view the Data held by the Company with respect to such Participant, request additional information about the storage and processing of the Data with respect to such Participant, recommend any necessary corrections to the Data with respect to the
Participant, or refuse or withdraw the consents herein in writing, in any case without cost, by contacting his or her local human resources representative. The Company may cancel the Participant’s eligibility to participate in the Plan, and, in
the Committee’s discretion, the Participant may forfeit any outstanding Awards if the Participant refuses or withdraws the consents described herein. For more information on the consequences of refusal to consent or withdrawal of consent,
Participants may contact their local human resources representative. 
 (i) No Liability of Committee Members. No member of the
Committee (nor any employee or director delegated authority pursuant to Section 3(b) hereof) shall be personally liable by reason of any contract or other instrument executed by such member or on his or her behalf in his or her capacity as a
member of the Committee or for any mistake of judgment made in good faith, and the Company shall indemnify and hold harmless each member of the Committee and each other employee, officer, or director of the Company to whom any duty or power relating
to the administration or interpretation of the Plan may be allocated or delegated, against all costs and expenses (including counsel fees) and liabilities (including sums paid in settlement of a claim) arising out of any act or omission to act in
connection with the Plan, unless arising out of such person’s own fraud or willful misconduct; provided, however, that approval of the Board shall be required for the payment of any amount in settlement of a claim against any such
person. The foregoing right of indemnification shall not be exclusive of any other rights of indemnification to which such persons may be entitled under the Company’s certificate or articles of incorporation or bylaws, each as may be amended
from time to time, as a matter of law, or otherwise, or any power that the Company may have to indemnify them or hold them harmless. 

  
 27 

 (j) Payments Following Accidents or Illness. If the Committee shall find that any person
to whom any amount is payable under the Plan is unable to care for his or her affairs because of illness or accident, or is a minor, or has died, then any payment due to such person or his or her estate (unless a prior claim therefor has been made
by a duly appointed legal representative) may, if the Committee so directs the Company, be paid to his or her spouse, child, relative, an institution maintaining or having custody of such person, or any other person deemed by the Committee to be a
proper recipient on behalf of such person otherwise entitled to payment. Any such payment shall be a complete discharge of the liability of the Committee and the Company therefor. 

(k) Governing Law. The Plan shall be governed by and construed in accordance with the internal laws of the State of Delaware without
reference to the principles of conflicts of laws thereof. 
 (l) Arbitration. All disputes and claims of any nature that a
Participant (or such Participant’s transferee or estate), the Company or any other member of the Company Group may have arising out of or in any way related to the Plan or any Award Agreement must be submitted solely and exclusively to binding
arbitration in accordance with the then-current employment arbitration rules and procedures of the American Arbitration Association (AAA) to be held in Howard County, Maryland. All information regarding the dispute or claim and arbitration
proceedings, including any settlement, shall not be disclosed by the Participant or any arbitrator to any third party without the written consent of the Company, except with respect to judicial enforcement of any arbitration award. Any arbitration
claim must be brought solely in the Participant’s (or such Participant’s transferee’s or estate’s) individual capacity and not as a claimant or class member (or similar capacity) in any purported multiple-claimant, class,
collective, representative or similar proceeding, and the arbitrator may not permit joinder of any multiple claimants and their claims without the express written consent of the Company. Any arbitrator selected to adjudicate the claim must be
knowledgeable in the industry standards and practices, and, by signing an Award Agreement, each Participant will be deemed to agree that any claims pursuant to the Plan or an Award Agreement is inherently a matter involving interstate commerce and
thus, notwithstanding the choice of law provision included herein, the Federal Arbitration Act shall govern the interpretation and enforcement of this arbitration provision. The arbitrator shall not be permitted to award any punitive or similar
damages, but may award attorney’s fees and expenses to the prevailing party in any arbitration. Any decision by the arbitrator shall be binding on all parties to the arbitration. 

(m) Statute of Limitations. A Participant or any other person filing a claim for benefits under the Plan must file the claim within one
(1) year of the date the Participant or other person knew or should have known of the facts giving rise to the claim. This one-year statute of limitations will apply in any forum where a Participant or
any other person may file a claim and, unless the Company waives the time limits set forth above in its sole discretion, any claim not brought within the time periods specified shall be waived and forever barred. 

(n) Funding. No provision of the Plan shall require the Company, for the purpose of satisfying any obligations under the Plan, to
purchase assets or place any assets in a trust or other entity to which contributions are made or otherwise to segregate any assets, nor shall the Company be required to maintain separate bank accounts, books, records, or other

  
 28 

 
evidence of the existence of a segregated or separately maintained or administered fund for such purposes. Participants shall have no rights under the Plan other than as unsecured general
creditors of the Company, except that insofar as they may have become entitled to payment of additional compensation by performance of services, they shall have the same rights as other employees and service providers under general law. 

(o) Reliance on Reports. Each member of the Committee and each member of the Board shall be fully justified in relying, acting, or
failing to act, and shall not be liable for having so relied, acted, or failed to act, in good faith, upon any report made by any independent public accountant of any member of the Company Group and upon any other information furnished in connection
with the Plan by any person or persons other than such member. 
 (p) Titles and Headings. The titles and headings of the sections in
the Plan are for convenience of reference only, and in the event of any conflict, the text of the Plan, rather than such titles or headings, shall control. 

(q) Stockholder Approval. Within the twelve (12) month period following the Restatement Effective Date, the Plan shall be approved
by the stockholders of the Company in accordance with the requirements of Section 422 of the Code. 

*        *        * 

The Plan was approved by the Board on May 13, 2016. 
 The
Plan was approved by the Company’s stockholders on May 17, 2016. 
 The Plan, as amended and restated, was approved by the Board on
January 18, 2017. 
 On February 23, 2017, the Board approved an amendment to the Plan to increase the number of shares of Stock subject to and
reserved for issuance pursuant to the Plan by 2,000,000 shares. Such increase is reflected in the 11,700,000 shares set forth in Section 4(a) of the Plan. 

The Plan, as amended and restated, and the increase in the number of shares of Stock subject to and reserved for issuance pursuant to the Plan by 2,000,000
shares, was approved by the Company’s stockholders on March 10, 2017. 
 On February 21, 2018, the Board approved an amendment to the Plan to
increase the number of shares of Stock subject to and reserved for issuance pursuant to the Plan by 3,000,000 shares. Such increase is reflected in the 14,700,000 shares set forth in Section 4(a) of the Plan. 

The Plan, as amended and restated, and the increase in the number of shares of Stock subject to and reserved for issuance pursuant to the Plan by 3,000,000
shares, was approved by the Company’s stockholders on March 13, 2018. 

  
 29 

 APPENDIX A 

TO 
 TENABLE HOLDINGS,
INC. 2016 STOCK INCENTIVE PLAN 
 (for California residents only, to the extent required by 

California Corporations Code Section 25102(o)) 

This Appendix A to the Tenable Holdings, Inc. 2016 Stock Incentive Plan (the “Plan”) shall apply only to the Participants who
are residents of the State of California and who are receiving an Award under the Plan in reliance on California Corporations Code Section 25102(o) only. Capitalized terms contained herein shall have the same meanings given to them in the Plan,
unless otherwise provided by this Appendix A. Notwithstanding any provisions contained in the Plan to the contrary and to the extent required by applicable laws, the following terms shall apply to all Awards granted to residents of the State of
California, until the earlier to occur of (i) the IPO Date, (ii) such time as the Committee amends this Appendix A or (iii) at such time as the Committee otherwise provides. 

(a) The term of each Option shall be stated in the Option Agreement, provided, however, that the exercise period shall not be
more than one hundred twenty (120) months from the date of grant thereof. 
 (b) Unless determined otherwise by the Committee, Awards
may not be sold, pledged, assigned, hypothecated, or otherwise transferred in any manner other than by will or by the laws of descent and distribution, and may be exercised, during the lifetime of the Participant, only by the Participant. If the
Committee makes an Award transferable, such Award may only be transferred (i) by will, (ii) by the laws of descent and distribution, (iii) to a revocable trust, or (iv) as permitted by Rule 701 of the Securities Act. 

(c) In the event of the Termination of a Participant prior to the Expiration Date for any reason other than (i) by the Service Recipient
for Cause or (ii) by reason of the Participant’s death or Disability, such Participant may exercise his or her Options within such period of time as specified in the Plan, which period shall not be less than thirty (30) days following
the date of such Termination, to the extent that such Options are exercisable on the date of such Termination (but in no event later than the Expiration Date of such Options as set forth in the Award Agreement and/or the Plan). 

(d) In the event of the Termination of a Participant prior to the Expiration Date by reason of the Participant’s Disability, the
Participant may exercise his or her Options within such period of time as specified in the Plan, which period shall not be less than six (6) months following the date of such Termination, to the extent such Options are exercisable on the date
of such Termination (but in no event later than the Expiration Date of such Options as set forth in the Award Agreement and/or the Plan). 

(e) In the event of the Termination of a Participant prior to the Expiration Date by reason of the Participant’s death, any Options held
by the Participant as of the date of such Termination may be exercised within such period of time as specified in the Plan, which 

  
 A-1 

 
period shall not be less than six (6) months following the date of such Termination, to the extent such Options are exercisable on the date of such Termination (but in no event later than
the Expiration Date of such Options as set forth in the Award Agreement and/or the Plan) by the person or persons to whom the Participant’s rights under such Options pass by will or by the applicable laws of descent and distribution. 

(f) No Award shall be granted, nor shall any shares of Stock be issued upon the exercise, vesting or settlement of any Award, to a resident of
California more than ten (10) years after the earlier of the date of adoption of the Plan or the date the Plan is approved by the Company’s security holders. 

(g) The Plan must be approved by a majority of the outstanding securities of the Company entitled to vote by the later of (1) within
twelve (12) months before or after the date the Plan is adopted or (2) prior to or within twelve (12) months of the granting of any Option or issuance of any security under the Plan in California. Any Option granted to any person in
California that is exercised before security holder approval is obtained and any issuance of securities purchased before security holder approval is obtained must be rescinded if security holder approval is not obtained in the manner described in
the preceding sentence. Such securities shall not be counted in determining whether such approval is obtained. 
 (h) In the event of a
stock split, reverse stock split, stock dividend, recapitalization, combination, reclassification or other distribution of the Company’s equity securities without the receipt of consideration by the Company, of or on the Company’s class of
securities subject to the purchase right or underlying an Option, the Committee will make a proportionate adjustment of the number of securities purchasable under an Award and the exercise price thereof under an Option; provided, however,
that the Committee will make such proportionate adjustments to an Award in the event of or as required by Section 25102(o) of the California Corporations Code to the extent the Company is relying upon the exemption afforded thereby with respect
to the Award. 
 (i) This Appendix A shall be deemed to be part of the Plan and the Committee shall have the authority to amend this
Appendix A in accordance with Section 18 of the Plan. 

*        *        * 

  
 A-2 

 TENABLE HOLDINGS, INC. 

AMENDED AND RESTATED 2016 STOCK INCENTIVE PLAN (“the PLAN”) 

IRISH SUPPLEMENT 

(Current as at 23 May 2017) 

Capitalized terms not explicitly defined in this Irish Supplement but defined in the Plan shall have the same definitions as in the Plan, unless the context
otherwise requires. 
  

	1.	Purpose and Eligibility 

 The purpose of this supplement to the Plan (the “Irish
Supplement”) is to enable the Committee to grant awards, including any Option, Restricted Stock, other Stock-based award or any combination of the foregoing, (the “Award” or “Awards”), to certain employees,
directors and contractors of the Company Group who are based in Ireland. The Irish Supplement should be read and construed as one document with the Plan. Awards (which in the case of Options will be unapproved for Irish tax purposes) may only be
granted under the Irish Supplement to employees, directors and contractors of the Company Group. Any person to whom an Award has been granted under the Irish Supplement is a “Participant” for the purposes of the Plan. 

The tax and social security consequences of participating in the Plan are based on complex tax and social security laws, which may be subject
to varying interpretations, and the application of such laws may depend, in large part, on the surrounding facts and circumstances. Therefore, we recommend that the Participant consults with their own tax advisor regularly to determine the
consequences of taking or not taking any action concerning their participation in the Plan and to determine how the tax, social security or other laws in Ireland (or elsewhere) apply to their specific situation. 

 

	2.	Terms 

 Awards granted pursuant to the Plan shall be governed by the terms of the Plan,
subject to any such amendments set out herein and as are necessary to give effect to Section 1 of the Irish Supplement, and by the terms of the individual Award Agreement entered into between the Company and the Participant. To the extent that
there is a conflict between the rules of the Plan and the Irish Supplement, the provisions of the Irish Supplement shall prevail. 
  

	3.	Taxes 

 The references in the Plan to “Withholding Obligations” includes any
and all taxes, charges, levies and contributions in Ireland or elsewhere, to include, in particular, Universal Social Charge (USC) and Pay Related Social Insurance (PRSI) (“Taxes”). 

 

	4.	Tax Indemnity 

  

	4.1	The Participant shall be accountable for any Taxes, which are chargeable on any assessable income deriving from the grant, exercise, purchase, or vesting of, or other dealing in Awards, or Stock issued pursuant to an
Award. The Company Group shall not become liable for any Taxes, as a result of the Participant’s participation in the Plan. In respect of such assessable income, the Participant shall indemnify the Company and (at the direction of the Company)
any entity of the Company Group, which is or may be treated as the employer of the Participant in respect of the Taxes (the “Tax Liabilities”). 

 

	4.2	Pursuant to the indemnity referred to in Section 4.1, where necessary, the Participant shall make such arrangements, as the Company Group requires to meet the cost of the Tax Liabilities, including at the direction
of the Company any of the following: 

  

	 	(a)	 making a cash payment of an appropriate amount to the relevant company whether by cheque, banker’s draft or
deduction from salary in time to enable the Company 

  
 1 

	 	Group to remit such amount to the Irish Revenue Commissioners before the 14th day following the end of the month in which the event giving rise to the Tax Liabilities occurred; or 

 

	 	(b)	appointing the Company as agent and / or attorney for the sale of sufficient shares of Stock acquired pursuant to the grant, exercise, purchase or vesting of, or other dealing in Awards, or Stock issued pursuant to an
Award to cover the Tax Liabilities and authorising the payment to the relevant company of the appropriate amount (including all reasonable fees, commissions and expenses incurred by the relevant company in relation to such sale) out of the net
proceeds of sale of the shares of Stock. 

  

	5.	Employment Rights 

  

	5.1	The Participant acknowledges that his or her terms of employment shall not be affected in any way by his or her participation in the Plan which shall not form part of such terms (either expressly or impliedly). The
Participant acknowledges that his or her participation in the Plan shall be subject at all times to the rules of the Plan as may be amended from time to time (including, but not limited to, any clawback provisions). If on termination of the
Participant’s employment (whether lawfully, unlawfully, or in breach of contract) he or she loses any rights or benefits under the Plan (including any rights or benefits which he or she would not have lost had his or her employment not been
terminated), the Participant hereby acknowledges that he or she shall not be entitled to (and hereby waives) any compensation for the loss of any rights or benefits under the Plan, or any replacement or successor plan. 

 

	5.2	The Plan is entirely discretionary and may be suspended or terminated by the Board at any time for any reason. Participation in the Plan is entirely discretionary and does not create any contractual or other right to
receive future grants of Awards, or benefits in lieu of Awards. All determinations with respect to future grants will be at the sole discretion of the Board. Rights under the Plan are not pensionable. 

 

	6.	Data Protection 

  

	6.1	The Participant authorises and directs the Company Group to collect, use, disclose, transfer and otherwise process in electronic or other form, any personal data (the “Data”) regarding the
Participant’s employment, the nature of the Participant’s salary and benefits and the details of the Participant’s participation in the Plan (including but not limited to) the Participant’s home address, telephone number, date of
birth, personal public service number, salary, nationality, job title, entitlements under an Award, and number of shares of Stock, which were granted, exercised, purchased, vested or dealt with under an Award, or issued pursuant to an Award, to the
extent required for the purposes of implementing, administering and managing the Participant’s participation in the Plan. 

  

	6.2	In connection with such purpose, the Company Group may disclose and transfer Data to any entity of the Company Group and to any third party involved with the implementation, administration and management of the Plan,
including any requisite transfer to a broker or other third party assisting with the grant, exercise, purchase or vesting of, or dealing with Awards or Stock issued pursuant to an Award, or with whom the Shares may be deposited. Furthermore, the
Participant understands that the transfer of Data to such third parties is necessary to facilitate the Participant’s participation in the Plan. 

  

	6.3	The Participant understands that some recipients of Data may be located in countries outside the European Union and that those countries may have data protection laws which do not provide the same level of protection as
those in Ireland and other European Union countries. However, in the case of transfer to such non-European Union countries, the Company Group will ensure that Data will be treated with appropriate security
measures through the implementation of model clauses or other lawful methods. 

  
 2 

	6.4	Additional terms regarding data protection are set forth in section 21(h) (Data Privacy) of the Plan. However, to the extent the terms of this section 6 conflict with the terms of section 21(h) of the Plan, the terms of
this section 6 shall prevail. 

 Adopted by the Committee of the Company on 

May 23, 2017 

  
 3 

 OPTION GRANT NOTICE AND AGREEMENT 

Tenable Holdings, Inc. (the “Company”), pursuant to its 2016 Stock Incentive Plan, as adopted on May 13, 2016 and
amended on January 18, 2017, and as may be further amended from time to time (the “Plan”), hereby grants to the Holder the number of Options set forth below, each Option representing the right to purchase one share of Stock at
the applicable Exercise Price (set forth below). The Options are subject to all of the terms and conditions set forth in this Option Grant Notice and Agreement (this “Award Agreement”), as well as all of the terms and conditions of
the Plan, all of which are incorporated herein in their entirety. Capitalized terms not otherwise defined herein shall have the same meaning as set forth in the Plan. 
  

			
	 Holder:
	  	
		
	 Date of Grant:
	  	
		
	 Vesting Commencement Date:
	  	
		
	 Number of Options:
	  	
		
	 Exercise Price:
	  	 $

		
	 Expiration Date:
	  	
		
	 Type of Option:
	  	 Nonqualified Stock Option

		
	 Vesting Schedule:
	  	Provided that the Holder has not undergone a Termination prior to the applicable vesting date, twenty five percent (25%) of the Options shall vest on each twelve (12) month anniversary of the Vesting Commencement Date,
rounded down to the nearest whole share; provided, that with respect to the last such yearly installment, the number of Options that vest in the installment shall be such that the Holder will be fully vested in the total number of Options
listed above as of the applicable yearly anniversary.
		
	Exercise of Options:	  	To exercise vested Options, the Holder (or his or her authorized representative) must give written notice to the Company, using the form of Option Exercise Notice attached hereto as Exhibit A, stating the number of
Options which he or she intends to exercise. The Company will issue the shares of Stock with respect to which the Options are exercised upon payment of the shares of Stock acquired in accordance with Section 5(d) of the Plan, which
Section 5(d) is incorporated herein by reference and made a part hereof; provided, however, that if the Holder wishes to use any method of exercise other than in immediately available funds in United States dollars, or by
certified or bank cashier’s check, the Holder shall have received the prior written approval of the Committee or its designee approving such method of exercise.

			
		  	Upon exercise of Options, the Holder will be required to satisfy applicable withholding tax obligations as provided in Section 17 of the Plan.
		
	Termination:	  	Section 5(g) of the Plan regarding treatment of Options upon Termination is incorporated herein by reference and made a part hereof. Following any such Termination, shares acquired upon exercise of any Options shall remain
subject to Sections 8 and 9 of the Plan.
		
	Restrictions on Stock:	  	Stock acquired upon exercise of any Options hereunder shall be subject to the restrictions set forth in Section 8 and 9 of the Plan.
		
	Voting Proxy:	  	As a condition of the grant of Options hereunder, the Holder hereby grants to the Investors, acting jointly, the Holder’s irrevocable proxy, and appoints the Investors, or any designee or nominee of the Investors, as the
Holder’s attorney-in-fact (with full power of substitution and resubstitution), for and in its name, place, and stead, to (i) vote or act by written consent
with respect to the Subject Shares (whether or not vested) now or hereafter owned by the Holder (or any transferee), including the right to sign the Holder’s name, as a stockholder, to any consent, certificate, or other document relating to the
Company that applicable law may require, in connection with any and all matters (other than any amendment to the Plan that would require stockholder approval), including, without limitation, the election of directors and the sale or transfer of any
Subject Shares as contemplated in Section 8 of the Plan, and (ii) take any and all action necessary to sell or otherwise transfer any Subject Shares as contemplated by Section 8 of the Plan. This proxy shall be coupled with an
interest, and the Holder agrees to take such further action or execute such other instruments as may be necessary to effectuate the intent of this proxy. In the event that any or all provisions of the proxy described hereunder are determined to be
unenforceable, the Holder shall grant a proxy that, to the fullest extent permitted by applicable law, preserves the intent of and provides the Investors with substantially the same benefits of the proxy described hereunder. The proxy described
hereunder shall terminate upon the IPO Date.
	Non-Interference	  	
	Agreement:	  	As a condition of the grant of Options hereunder, the Holder hereby affirms all confidentiality, non-interference, invention assignment or similar covenants previously made by the Holder in
favor of the Company Group and acknowledges that such covenants are independent obligations of the Holder (such

  
 -2- 

			
		  	covenants, the “Non-Interference Agreement”). The Holder hereby acknowledges and agrees that this Award Agreement and the
Non-Interference Agreement will be considered separate contracts, and the Non-Interference Agreement will survive the termination of this Award Agreement for any
reason.
		
	Additional Terms:	  	 Options shall be subject to the following additional terms:

		
		  	 •   Options shall be exercisable in whole shares of Stock
only.

		
		  	 •   Each Option shall cease to be exercisable as to any share of Stock
when the Holder purchases the share of Stock or when the Option otherwise expires or is forfeited.

		
		  	 •   The Stock issued upon the exercise of any Options hereunder shall be
registered in the Holder’s name on the books of the Company during the Lock-Up Period and for such additional time as the Committee determines appropriate in its reasonable discretion. Any certificates
representing the Stock delivered to the Holder shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of the Securities and Exchange Commission,
any stock exchange upon which such shares are listed, and any applicable federal or state laws, and the Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions as the Committee
deems appropriate.

		
		  	 •   The Holder shall be the record owner of the Stock issued in respect of
the Options, and as record owner shall generally be entitled to all rights of a stockholder with respect to the Stock issued in respect of the Options.

		
		  	 •   This Award Agreement does not confer upon the Holder any right to
continue as an employee or service provider of the Service Recipient or any other member of the Company Group.

		
		  	 •   This Award Agreement shall be construed and interpreted in accordance
with the laws of the State of Delaware, without regard to the principles of conflicts of law thereof.

		
		  	 •   The Holder and the Company acknowledge that the Options are intended
to be exempt from Sections 409A and 457A of the Code, with the Exercise Price intended to be at least equal to the Fair Market Value per share of Stock on the Date of Grant. Since the Stock is not traded on an established securities market, the
Exercise Price has been based upon the determination of Fair Market Value by the Committee in a manner consistent with the terms of the Plan.

  
 -3- 

			
		  	 The Holder acknowledges that there is no guarantee that the Internal Revenue Service will agree with this valuation,
and agrees not to make any claim against the Company, the Committee, the Company’s officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low or that the Options are not otherwise exempt from
Section 409A of the Code.

		
		  	 •   The Holder agrees that the Company may deliver by email all documents
relating to the Plan or the Options (including, without limitation, a copy of the Plan) and all other documents that the Company is required to deliver to its security holders (including, without limitation, disclosures that may be required by the
Securities and Exchange Commission). The Holder also agrees that the Company may deliver these documents by posting them on a website maintained by the Company or by a third party under contract with the Company. If the Company posts these documents
on a website, it shall notify the Holder by email or such other reasonable manner as then determined by the Company.

		
		  	 •   This Award Agreement and the Plan constitute the entire understanding
and agreement of the parties hereto and supersede all prior negotiations, discussions, correspondence, communications, understandings, and agreements (whether oral or written and whether express or implied) between the Company and the Holder
relating to the subject matter of this Award Agreement. Without limiting the foregoing, to the extent the Holder has entered into an employment or similar agreement with the Company or any of its affiliates, and the terms noted in such employment or
similar agreement are inconsistent with or conflict with this Award Agreement, then the terms of this Award Agreement will supersede and be deemed to amend and modify the inconsistent or conflicting terms set forth in such employment or similar
agreement.

		
	Representations and	  	
	Warranties of the	  	
	Holder:	  	The Holder hereby represents and warrants to the Company that:

  
 -4- 

			
		  	 •   The Holder understands that the Stock has not been registered under
the Securities Act, nor qualified under any state securities laws, and that it is being offered and sold pursuant to, and in reliance upon, the exemption from such registration provided by Rule 701 promulgated under the Securities Act for security
issuances under compensatory benefit plans such as the Plan;

		
		  	 •   The Holder has been informed that the shares of Stock are restricted
securities under the Securities Act and may not be resold or transferred unless the shares of Stock are first registered under the federal securities laws or unless an exemption from such registration is available; and

		
		  	 •   The Holder is prepared to hold the shares of Stock for an indefinite
period and that the Holder is aware that Rule 144 as promulgated under the Securities Act, which exempts certain resales of restricted securities, is not presently available to exempt the resale of the shares of Stock from the registration
requirements of the Securities Act.

 *    *     * 

  
 -5- 

 THE UNDERSIGNED HOLDER ACKNOWLEDGES RECEIPT OF THIS AWARD AGREEMENT AND THE PLAN, AND, AS AN EXPRESS CONDITION
TO THE GRANT OF OPTIONS UNDER THIS AWARD AGREEMENT, AGREES TO BE BOUND BY THE TERMS OF BOTH THIS AWARD AGREEMENT AND THE PLAN. 
  

			
	 TENABLE HOLDINGS, INC.
	  	HOLDER

			
	

 

 
 Date:
                                        
             

  
 [Signature Page to
Option Grant Notice and Agreement] 

 OPTION GRANT NOTICE AND AGREEMENT 

Tenable Holdings, Inc. (the “Company”), pursuant to its 2016 Stock Incentive Plan, as adopted on May 13, 2016 and amended
on January 18, 2017, and as may be further amended from time to time (the “Plan”), hereby grants to the Holder the number of Options set forth below, each Option representing the right to purchase one share of Stock at the
applicable Exercise Price (set forth below). The Options are subject to all of the terms and conditions set forth in this Option Grant Notice and Agreement (this “Award Agreement”), as well as all of the terms and conditions of the
Plan, all of which are incorporated herein in their entirety. Capitalized terms not otherwise defined herein shall have the same meaning as set forth in the Plan. 
  

			
	 Holder:
	  	
		
	 Date of Grant:
	  	
		
	 Vesting Commencement Date:
	  	
		
	 Number of Options:
	  	
		
	 Exercise Price:
	  	$
		
	 Expiration Date:
	  	
		
	 Type of Option:
	  	Nonqualified Stock Option
		
	 Vesting Schedule:
	  	Provided that the Holder has not undergone a Termination prior to the applicable vesting date, twenty five percent (25%) of the Options shall vest on each twelve (12) month anniversary of the Vesting Commencement Date,
rounded down to the nearest whole share; provided, that with respect to the last such yearly installment, the number of Options that vest in the installment shall be such that the Holder will be fully vested in the total number of Options
listed above as of the applicable yearly anniversary.
		
	 Acceleration:
	  	If at any time between the date of a definitive agreement providing for a Change of Control (as defined below) is entered into and the date which is twelve (12) months after the closing of such Change of Control, the Holder
is either terminated without Cause (as defined in the Plan) or resigns for Good Reason (as defined below), then the remaining unvested portion of the Option will accelerate and be deemed at such time to be vested in full. If at the time of the
Change of Control the Option is not yet 100% vested, and the Option is continued, assumed or a substituted option is granted as permitted by Section 11 of the Plan (collectively a “Continued Option”), then such Continued Option
shall become 100% vested if and when provided for under this paragraph, and if there is not a Continued Option, then the property or money which would otherwise be received for the unvested portion of the Option if it had been vested shall be
deferred and delivered to the Holder if and when the Holder becomes 100% vested in the Option under this paragraph.

  

			
		
	 Exercise of Options:
	  	To exercise vested Options, the Holder (or his or her authorized representative) must give written notice to the Company, using the form of Option Exercise Notice attached hereto as Exhibit A, stating the number of
Options which he or she intends to exercise. The Company will issue the shares of Stock with respect to which the Options are exercised upon payment of the shares of Stock acquired in accordance with Section 5(d) of the Plan, which
Section 5(d) is incorporated herein by reference and made a part hereof; provided, however, that if the Holder wishes to use any method of exercise other than in immediately available funds in United States dollars, or by
certified or bank cashier’s check, the Holder shall have received the prior written approval of the Committee or its designee approving such method of exercise.
		
		  	Upon exercise of Options, the Holder will be required to satisfy applicable withholding tax obligations as provided in Section 17 of the Plan.
		
	 Termination:
	  	Section 5(g) of the Plan regarding treatment of Options upon Termination is incorporated herein by reference and made a part hereof. Following any such Termination, shares acquired upon exercise of any Options shall remain
subject to Sections 8 and 9 of the Plan.
		
	 Restrictions on Stock:
	  	Stock acquired upon exercise of any Options hereunder shall be subject to the restrictions set forth in Section 8 and 9 of the Plan.
		
	 Voting Proxy:
	  	As a condition of the grant of Options hereunder, the Holder hereby grants to the Investors, acting jointly, the Holder’s irrevocable proxy, and appoints the Investors, or any designee or nominee of the Investors, as the
Holder’s attorney-in-fact (with full power of substitution and resubstitution), for and in its name, place, and stead, to (i) vote or act by written consent
with respect to the Subject Shares (whether or not vested) now or hereafter owned by the Holder (or any transferee), including the right to sign the Holder’s name, as a stockholder, to any consent, certificate, or other document relating to the
Company that applicable law may require, in connection with any and all matters (other than any amendment to the Plan that would require stockholder approval), including, without limitation, the election of directors and the sale or transfer of any
Subject Shares as contemplated in Section 8 of the Plan, and (ii) take any and all action necessary to sell or otherwise transfer any Subject Shares as contemplated by Section 8 of the Plan.

  
 -2- 

			
		  	This proxy shall be coupled with an interest, and the Holder agrees to take such further action or execute such other instruments as may be necessary to effectuate the intent of this proxy. In the event that any or all provisions
of the proxy described hereunder are determined to be unenforceable, the Holder shall grant a proxy that, to the fullest extent permitted by applicable law, preserves the intent of and provides the Investors with substantially the same benefits of
the proxy described hereunder. The proxy described hereunder shall terminate upon the IPO Date.
		
	 Non-Interference Agreement:
	  	As a condition of the grant of Options hereunder, the Holder hereby affirms all confidentiality, non-interference, invention assignment or similar covenants previously made by the Holder in
favor of the Company Group and acknowledges that such covenants are independent obligations of the Holder (such covenants, the “Non-Interference Agreement”). The Holder hereby
acknowledges and agrees that this Award Agreement and the Non-Interference Agreement will be considered separate contracts, and the Non-Interference Agreement will
survive the termination of this Award Agreement for any reason.
		
	 Additional Terms:
	  	Options shall be subject to the following additional terms:
		
		  	 •   Options shall be exercisable in whole shares of Stock
only.

		
		  	 •   Each Option shall cease to be exercisable as to any share of Stock
when the Holder purchases the share of Stock or when the Option otherwise expires or is forfeited.

		
		  	 •   The Stock issued upon the exercise of any Options hereunder shall be
registered in the Holder’s name on the books of the Company during the Lock-Up Period and for such additional time as the Committee determines appropriate in its reasonable discretion. Any certificates
representing the Stock delivered to the Holder shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of the Securities and Exchange Commission,
any stock exchange upon which such shares are listed, and any applicable federal or state laws, and the Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions as the Committee
deems appropriate.

  
 -3- 

			
		  	 •   The Holder shall be the record owner of the Stock issued in respect of
the Options, and as record owner shall generally be entitled to all rights of a stockholder with respect to the Stock issued in respect of the Options.

		
		  	 •   This Award Agreement does not confer upon the Holder any right to
continue as an employee or service provider of the Service Recipient or any other member of the Company Group.

		
		  	 •   This Award Agreement shall be construed and interpreted in accordance
with the laws of the State of Delaware, without regard to the principles of conflicts of law thereof.

		
		  	 •   The Holder and the Company acknowledge that the Options are intended to
be exempt from Sections 409A and 457A of the Code, with the Exercise Price intended to be at least equal to the Fair Market Value per share of Stock on the Date of Grant. Since the Stock is not traded on an established securities market, the
Exercise Price has been based upon the determination of Fair Market Value by the Committee in a manner consistent with the terms of the Plan. The Holder acknowledges that there is no guarantee that the Internal Revenue Service will agree with this
valuation, and agrees not to make any claim against the Company, the Committee, the Company’s officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low or that the Options are not otherwise
exempt from Section 409A of the Code.

		
		  	 •   The Holder agrees that the Company may deliver by email all documents
relating to the Plan or the Options (including, without limitation, a copy of the Plan) and all other documents that the Company is required to deliver to its security holders (including, without limitation, disclosures that may be required by the
Securities and Exchange Commission). The Holder also agrees that the Company may deliver these documents by posting them on a website maintained by the Company or by a third party under contract with the Company. If the Company posts these documents
on a website, it shall notify the Holder by email or such other reasonable manner as then determined by the Company.

		
		  	 •   This Award Agreement and the Plan constitute the entire understanding
and agreement of the parties hereto and supersede all prior negotiations, discussions, correspondence, communications, understandings, and agreements (whether oral or written and whether express or implied) between the Company and the Holder
relating to the subject matter of this Award Agreement.

  
 -4- 

			
		  	 Without limiting the foregoing, to the extent the Holder has entered into an employment or similar agreement with the
Company or any of its affiliates, and the terms noted in such employment or similar agreement are inconsistent with or conflict with this Award Agreement, then the terms of this Award Agreement will supersede and be deemed to amend and modify the
inconsistent or conflicting terms set forth in such employment or similar agreement.

		
		  	 •   “Change of Control” will mean: (A) one or more
individuals, persons, general partnerships, limited partnerships, limited liability partnerships, limited liability companies, corporations, joint ventures, trusts, business trusts, cooperatives, associations, foreign trusts, foreign business
organizations or other entities, acting individually or as a group (within the meaning of Section 13(d) of the Securities Exchange Act of 1934) (other than (w) the Company, (x) any trustee or other fiduciary holding securities under
an employee benefit plan of the Company, (y) the Investors, or (z) a shareholder of the Company as of the date of this Agreement, an immediate family member of such shareholder or a trust or other entity owned solely by or for the benefit
of any such persons) (a “Person”) acquires (other than solely by reason of a repurchase of voting securities by the Company) more than 50% of the combined voting power of the Company’s then total outstanding voting securities;
(B) there is consummated a merger or consolidation of the Company with any other corporation or other entity, other than (1) a merger or consolidation which results in the voting securities of the Company outstanding immediately prior to
such merger or consolidation continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or any parent thereof) at least 50% of the combined voting power of the securities of the
Company or such surviving entity or any direct or indirect parent thereof outstanding immediately after such merger or consolidation or (2) a merger or consolidation effected to implement a recapitalization of the Company (or similar
transaction) in which no Person is or becomes the beneficial owner, directly or indirectly, of securities of the Company (meaning that such Person is entitled to the benefits of ownership although such Person does have possession of or title to such
securities) (not including in the securities beneficially owned by such Person any securities acquired directly from the Company or its affiliates) representing 50% or more of the combined voting power of the Company’s then outstanding
securities; (C) the consummation of a sale, lease exclusive license or other disposition of all or substantially all of the assets of the Company; or (D) the stockholders of the Company approve a plan of complete liquidation or
dissolution; provided, however, that in no event shall an initial public offering of the capital stock of the Company constitute a Change of Control for purposes of this Agreement.

  
 -5- 

			
		
		  	 •   “Good Reason” is defined as the Holder’s
resignation as a result of (A) an involuntary reduction in the Holder’s base salary, other than in a broad based reduction similarly affecting all other members of Company’s executive management, (B) a failure of a successor of
the Company to assume the obligations under this Agreement in all material respects, (C) the relocation of the Holder’s principal place of employment more than fifty (50) miles from its current location, without the Holder’s
consent, (D) the Company’s failure to comply with its material obligations under this Agreement or under any other written agreement with the Holder, (E) a substantial diminution of the Holder’s duties, authority or
responsibilities. Notwithstanding the foregoing, the Holder must provide written notice to the Company within thirty (30) days of learning of the occurrence of an event which constitutes Good Reason or will constitute Good Reason and the
Company has thirty (30) days following receipt of such written notice to cure any or all of the foregoing. In order for a resignation to qualify as a resignation for Good Reason, the Holder must resign within sixty (60) days after the end
of such thirty (30) day cure period.

		
	Representations and	  	
	Warranties of the Holder:	  	The Holder hereby represents and warrants to the Company that:
		
		  	 •   The Holder understands that the Stock has not been registered under
the Securities Act, nor qualified under any state securities laws, and that it is being offered and sold pursuant to, and in reliance upon, the exemption from such registration provided by Rule 701 promulgated under the Securities Act for security
issuances under compensatory benefit plans such as the Plan;

  
 -6- 

			
		 	 •   The Holder has been informed that the shares of Stock are restricted
securities under the Securities Act and may not be resold or transferred unless the shares of Stock are first registered under the federal securities laws or unless an exemption from such registration is available; and

		
		 	 •   The Holder is prepared to hold the shares of Stock for an indefinite
period and that the Holder is aware that Rule 144 as promulgated under the Securities Act, which exempts certain resales of restricted securities, is not presently available to exempt the resale of the shares of Stock from the registration
requirements of the Securities Act.

 *        *        * 

  
 -7- 

 THE UNDERSIGNED HOLDER ACKNOWLEDGES RECEIPT OF THIS AWARD AGREEMENT AND THE PLAN, AND, AS AN EXPRESS CONDITION
TO THE GRANT OF OPTIONS UNDER THIS AWARD AGREEMENT, AGREES TO BE BOUND BY THE TERMS OF BOTH THIS AWARD AGREEMENT AND THE PLAN. 
  

			
	 TENABLE HOLDINGS, INC.
	  	 HOLDER

			
	
	 

Date:                       
                  
 [Signature Page to Option Grant
Notice and Agreement] 

 OPTION GRANT NOTICE AND AGREEMENT 

Tenable Holdings, Inc. (the “Company”), pursuant to its 2016 Stock Incentive Plan, as adopted on May 13, 2016 and
amended on January 18, 2017, and as may be further amended from time to time (the “Plan”), hereby grants to the Holder the number of Options set forth below, each Option representing the right to purchase one share of Stock at
the applicable Exercise Price (set forth below). The Options are subject to all of the terms and conditions set forth in this Option Grant Notice and Agreement (this “Award Agreement”), as well as all of the terms and conditions of
the Plan, all of which are incorporated herein in their entirety. Capitalized terms not otherwise defined herein shall have the same meaning as set forth in the Plan. 
  

			
	 Holder:
	  	
		
	 Date of Grant:
	  	
		
	 Vesting Commencement Date:
	  	
		
	 Number of Options:
	  	
		
	 Exercise Price:
	  	$
		
	 Expiration Date:
	  	
		
	 Type of Option:
	  	Nonqualified Stock Option
		
	 Vesting Schedule:
	  	Provided that the Holder has not undergone a Termination prior to the applicable vesting date, twenty five percent (25%) of the Options shall vest on each twelve (12) month anniversary of the Vesting Commencement Date,
rounded down to the nearest whole share; provided, that with respect to the last such yearly installment, the number of Options that vest in the installment shall be such that the Holder will be fully vested in the total number of Options
listed above as of the applicable yearly anniversary.
		
	 Acceleration:
	  	Should you be terminated by the Company without Cause (as defined in the Plan) or should you resign for Good Reason (as defined below) and other than due to death or disability, effective after the first anniversary of the
Vesting Commencement Date, and as of the date of your termination the Option has not already become fully vested, you will be credited with an additional vesting percentage equal to 25% multiplied by a fraction, the numerator of which is equal to
the number of completed months of Continuous Service elapsed since the preceding anniversary of the Vesting Commencement Date on which additional vesting was

			
		  	received and the denominator of which is twelve (12). For avoidance of doubt if the effective date of termination without Cause or for Good Reason occurs on an anniversary date of the Vesting Commencement Date, no additional
vesting for a partial year will be provided under the preceding sentence. In addition to the foregoing, if at any time between the date of a definitive agreement providing for a Change of Control (as defined below) is entered into and the date which
is twelve (12) months after the closing of such Change of Control, the Holder is either terminated without Cause or resigns for Good Reason, then the remaining unvested portion of the Option will accelerate and be deemed at such time to be
vested in full. If at the time of the Change of Control the Option is not yet 100% vested, and the Option is continued, assumed or a substituted option is granted as permitted by Section 11 of the Plan (collectively a “Continued
Option”), then such Continued Option shall become 100% vested if and when provided for under this paragraph, and if there is not a Continued Option, then the property or money which would otherwise be received for the unvested portion of
the Option if it had been vested shall be deferred and delivered to the Holder if and when the Holder becomes 100% vested in the Option under this paragraph.
		
	Exercise of Options:	  	To exercise vested Options, the Holder (or his or her authorized representative) must give written notice to the Company, using the form of Option Exercise Notice attached hereto as Exhibit A, stating the number of
Options which he or she intends to exercise. The Company will issue the shares of Stock with respect to which the Options are exercised upon payment of the shares of Stock acquired in accordance with Section 5(d) of the Plan, which
Section 5(d) is incorporated herein by reference and made a part hereof; provided, however, that if the Holder wishes to use any method of exercise other than in immediately available funds in United States dollars, or by
certified or bank cashier’s check, the Holder shall have received the prior written approval of the Committee or its designee approving such method of exercise.
		
		  	Upon exercise of Options, the Holder will be required to satisfy applicable withholding tax obligations as provided in Section 17 of the Plan.
		
	Termination:	  	Section 5(g) of the Plan regarding treatment of Options upon Termination is incorporated herein by reference and made a part hereof. Following any such Termination, shares acquired upon exercise of any Options shall remain
subject to Sections 8 and 9 of the Plan, except as described in the following paragraph.

  
 -2- 

			
	Restrictions on Stock:	  	Stock acquired upon exercise of any Options hereunder shall be subject to the restrictions set forth in Section 8 and 9 of the Plan, except for the Irrevocable Proxy pursuant to Section 8(e) of the Plan. The Repurchase
Right pursuant to Section 9 of the Plan will only apply if Holder is terminated for Cause.
		
	Drag Along Rights:	  	In lieu of the Drag Along Rights specified in Section 8(b) of the Plan, the following will apply. Notwithstanding any provision of this Award Agreement to the contrary, if at any time the Board of Directors approves a sale
of the Company, Holder agrees that he or she will consent to and raise no objections against the sale of the Company, and if the sale of the Company is structured as (i) a merger or consolidation of the Company, or a sale of all or
substantially all of the assets of the Company, Holder will waive any dissenters’ rights, appraisal rights or similar rights in connection with such merger, consolidation or asset sale, or (ii) a sale of all or substantially all of the
common stock of the Company, Holder agrees to sell all of his or her shares of common stock acquired under the Plan in the sale of the Company, on the terms and conditions approved by the Board of Directors. Holder hereby agrees to take all
necessary and desirable actions approved by the Board of Directors in connection with the consummation of the sale of the Company, including voting for, giving written consent to the sale of the Company and executing such agreements and such
instruments and completing other actions reasonably necessary to (x) subject to the last sentence of this Section, provide customary representations, warranties, indemnities, and escrow arrangements relating to such sale of the Company and
(y) effectuate the allocation and distribution of the aggregate consideration upon the sale of the Company. In connection with such sale of the Company, (1) Holder’s representations and warranties shall be limited to ownership and
authority to vote and/or transfer the common stock (the “Individual Representations and Warranties”), and (2) except in the case of a breach of Holder’s Individual Representations and Warranties, Holder’s liability for
indemnification obligations in excess of any escrow amounts shall be several (and not joint) and shall not exceed Holder’s pro rata portion of the total consideration received by the Company’s shareholders in such transaction.
		
	Sale Rights	  	If at any time prior to the second annual anniversary of the Holder’s termination of employment from the Company, one or more members of the Key Shareholder Group shall in the aggregate in a single or related series of
transactions sell twenty-five percent (25%) or more of the total number of shares of common stock of the Company held by the Key Shareholder Group (“Liquidity Sale”) and the Holder is not offered the opportunity to participate on a pro-rata basis in such Liquidity Sale, then Holder shall have the sale rights provided herein.

  
 -3- 

			
		 	The Holder shall be treated as having been offered the opportunity to participate in the Liquidity Sale if the Holder is offered the right to sell his pro-rata share in the Liquidity Sale on
the same (or no less favorable) terms and conditions as the selling shareholders of the Key Shareholder Group, the Purchaser is given at least ten (10) days’ notice of such opportunity and information regarding the material terms and
conditions of the Liquidity Sale, or if a shareholder of the Company with co-sale rights with respect to such Liquidity Sale assigns to Holder the right to exercise such assigning shareholder’s co-sale rights and which entitles the Holder to sell his pro-rata share in the Liquidity Sale on the same (or no less favorable) terms and conditions as the selling
shareholders of the Key Shareholder Group. The Holder shall be treated as being offered the right to exercise the assigning shareholder’s co-sale rights if (i) the Company or such assigning
shareholder provides written notice to the Holder as soon as practical after the period for electing to participate in such co-sale becomes known to the Company or assigning shareholder, (ii) such written
notice identifies the acquiring party or parties in the Liquidity Sale and sets forth the material terms and conditions of the Liquidity Sale, and (iii) the Holder is provided no less than a fifteen (15) day period to elect to exercise the
co-sale rights assigned to the Holder. Holder’s pro-rata share shall mean a number of shares of common stock equal to the product obtained by multiplying
(i) the number of shares of common stock and outstanding vested stock options for common stock of the Company held by the Holder by (ii) a fraction, the numerator of which is the number of shares of common stock (including shares of common
stock issuable upon exercise or conversion of equity securities) being sold by the Key Shareholder Group in the Liquidity Sale and the denominator of which is the total number of shares of common stock (including shares of common stock issuable upon
the exercise or conversion of equity securities) by the Key Shareholder Group immediately prior to the Liquidity Sale. If the Holder is not so offered the opportunity to participate on a pro-rata basis in the
Liquidity Sale, then the Holder shall have the right for a fifteen (15) day period following the closing of the Liquidity Sale to notify the Company in writing of its intent to sell (the “Sale Notice”) and the Company shall
have the obligation to purchase from Holder that number of shares of common stock equal to Shareholders pro-rata share. Such purchase shall be at the price and under terms no less favorable to Holder as were
provided for in connection with the Liquidity Sale. The Company shall promptly provide notice to Holder of a Liquidity Sale by the Key Shareholder Group pursuant to which Holder is entitled to rights under this paragraph.

  
 -4- 

			
		  	The Company shall use commercially reasonable efforts following the receipt of a Sale Notice to remove any impediments, such as loan covenant or other restrictions, which would preclude the Company from completing the purchase
under this paragraph. Closing of such purchase shall be made within thirty (30) days after the date the Company receives the Sale Notice. Holder’s rights under this paragraph shall, in the event of Holder’s death be provided to
Holder’s heirs or estate which succeed to the Holder’s shares of common stock subject to this Agreement. In the event a shareholder shall prior to a sale of shares by the Key Shareholder Group, assign to or otherwise provide to Holder (and
Holder’s heirs or estate in the event of Holder’s death) with a contractual right to exercise the co-sale rights which are available to such shareholder in connection with a future sale by the Key
Shareholder Group and which are exercisable upon such events and on such terms and conditions which are no less favorable to Holder (or his heirs or estate as applicable) than provided for in this paragraph, then the sale rights otherwise provided
in this paragraph shall terminate. Notwithstanding the above, the Holder’s rights under this paragraph shall terminate subsequent to the closing of a public offering of the common stock of the Company pursuant to a registration statement
declared effective under the Securities Act.
		
	Non-Interference Agreement:	  	As a condition of the grant of Options hereunder, the Holder hereby affirms all confidentiality, non-interference, invention assignment or similar covenants previously made by the Holder in
favor of the Company Group and acknowledges that such covenants are independent obligations of the Holder (such covenants, the “Non-Interference Agreement”). The Holder hereby
acknowledges and agrees that this Award Agreement and the Non-Interference Agreement will be considered separate contracts, and the Non-Interference Agreement will
survive the termination of this Award Agreement for any reason.
		
	Additional Terms:	  	Options shall be subject to the following additional terms:
		
		  	 •   Options shall be exercisable in whole shares of Stock
only.

		
		  	 •   Each Option shall cease to be exercisable as to any share of Stock
when the Holder purchases the share of Stock or when the Option otherwise expires or is forfeited.

		
		  	 •   The Stock issued upon the exercise of any Options hereunder shall be
registered in the Holder’s name on the books of the Company during the Lock-Up Period and for such additional time as the Committee determines appropriate in its reasonable discretion.

  
 -5- 

			
		 	 Any certificates representing the Stock delivered to the Holder shall be subject to such stop transfer orders and other
restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of the Securities and Exchange Commission, any stock exchange upon which such shares are listed, and any applicable federal or state laws, and the
Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions as the Committee deems appropriate.

		
		 	 •   The Holder shall be the record owner of the Stock issued in respect of
the Options, and as record owner shall generally be entitled to all rights of a stockholder with respect to the Stock issued in respect of the Options.

		
		 	 •   This Award Agreement does not confer upon the Holder any right to
continue as an employee or service provider of the Service Recipient or any other member of the Company Group.

		
		 	 •   This Award Agreement shall be construed and interpreted in accordance
with the laws of the State of Delaware, without regard to the principles of conflicts of law thereof.

		
		 	 •   The Holder and the Company acknowledge that the Options are intended to
be exempt from Sections 409A and 457A of the Code, with the Exercise Price intended to be at least equal to the Fair Market Value per share of Stock on the Date of Grant. Since the Stock is not traded on an established securities market, the
Exercise Price has been based upon the determination of Fair Market Value by the Committee in a manner consistent with the terms of the Plan. The Holder acknowledges that there is no guarantee that the Internal Revenue Service will agree with this
valuation, and agrees not to make any claim against the Company, the Committee, the Company’s officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low or that the Options are not otherwise
exempt from Section 409A of the Code.

		
		 	 •   The Holder agrees that the Company may deliver by email all documents
relating to the Plan or the Options (including, without limitation, a copy of the Plan) and all other documents that the Company is required to deliver to its security holders (including, without limitation, disclosures that may be required by the
Securities and Exchange Commission).

  
 -6- 

			
		 	 The Holder also agrees that the Company may deliver these documents by posting them on a website maintained by the
Company or by a third party under contract with the Company. If the Company posts these documents on a website, it shall notify the Holder by email or such other reasonable manner as then determined by the Company.

		
		 	 •   This Award Agreement and the Plan constitute the entire understanding
and agreement of the parties hereto and supersede all prior negotiations, discussions, correspondence, communications, understandings, and agreements (whether oral or written and whether express or implied) between the Company and the Holder
relating to the subject matter of this Award Agreement. To the extent this Award Agreement conflicts with the terms of the Plan, the terms of this Award Agreement will control as applied to the Option held by the Holder. Without limiting the
foregoing, to the extent the Holder has entered into an employment or similar agreement with the Company or any of its affiliates, and the terms noted in such employment or similar agreement are inconsistent with or conflict with this Award
Agreement, then the terms of this Award Agreement will supersede and be deemed to amend and modify the inconsistent or conflicting terms set forth in such employment or similar agreement.

		
		 	 •   “Affiliate” means any custodian or trustee of any
trust, or any partnership, limited liability company or other entity wholly for the benefit of, or the ownership interests of which are owned wholly by, a Key Shareholder and/or any Family Member of a Key Shareholder.

		
		 	 •   “Change of Control” will mean: (A) one or more
individuals, persons, general partnerships, limited partnerships, limited liability partnerships, limited liability companies, corporations, joint ventures, trusts, business trusts, cooperatives, associations, foreign trusts, foreign business
organizations or other entities, acting individually or as a group (within the meaning of Section 13(d) of the Securities Exchange Act of 1934) (other than (w) the Company, (x) any trustee or other fiduciary holding securities under
an employee benefit plan of the Company, (y) the Investors, or (z) a shareholder of the Company as of the date of this Agreement, an immediate family member of such shareholder or a trust or other entity owned solely by or for the benefit
of any such persons) (a “Person”) acquires (other than solely by reason of a repurchase of voting securities by the Company) more than 50% of the combined voting power of the Company’s then total outstanding voting securities;
(B) there is consummated a merger or consolidation of the Company with any other corporation or other entity, other than (1) a merger or consolidation which results in the voting securities of the Company outstanding immediately prior to
such merger or consolidation continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or any parent thereof) at least 50% of the combined voting power of the securities of the
Company or such surviving entity or any direct or indirect parent thereof outstanding immediately after such merger or consolidation or (2) a merger or consolidation effected to implement a recapitalization of the Company (or similar
transaction) in which no Person is or becomes the beneficial owner, directly or indirectly, of securities of the Company (meaning that such Person is entitled to the benefits of ownership although such Person does have possession of or title to such
securities) (not including in the securities beneficially owned by such Person any securities acquired directly from the Company or its affiliates) representing 50% or more of the combined voting power of the Company’s then outstanding
securities; (C) the consummation of a sale, lease exclusive license or other disposition of all or substantially all of the assets of the Company; or (D) the stockholders of the Company approve a plan of complete liquidation or
dissolution; provided, however, that in no event shall an initial public offering of the capital stock of the Company constitute a Change of Control for purposes of this Agreement.

  
 -7- 

			
		
		 	 •  “Family Member” means a child, stepchild, grandchild, parent,
stepparent, grandparent, spouse, domestic partner, sibling, niece, nephew, mother-in-law,
father-in-law, son-in-law, daughter-in-law, brother-in-law or
sister-in-law, including adoptive relationships.

		
		 	 •  “Good Reason” is defined as the Holder’s resignation as
a result of (A) an involuntary reduction in the Holder’s base salary, other than in a broad based reduction similarly affecting all other members of Company’s executive management, (B) a failure of a successor of the Company to
assume the obligations under this Agreement in all material respects, (C) the relocation of the Holder’s principal place of employment more than fifty (50) miles from its current location, without the Holder’s consent,
(D) the Company’s failure to comply with its material obligations under this Agreement or under any other written agreement with the Holder, (E) a substantial diminution of the Holder’s duties, authority or
responsibilities.

  
 -8- 

			
		  	 Notwithstanding the foregoing, the Holder must provide written notice to the Company within thirty (30) days of
learning of the occurrence of an event which constitutes Good Reason or will constitute Good Reason and the Company has thirty (30) days following receipt of such written notice to cure any or all of the foregoing. In order for a resignation to
qualify as a resignation for Good Reason, the Holder must resign within sixty (60) days after the end of such thirty (30) day cure period.

		
		  	 •   “Key Shareholder” means Ronald J. Gula, John C.
Huffard, Jr., and Renaud M. Deraison.

		
		  	 •   “Key Shareholder Group” means the Key Shareholders,
their Family Members and Affiliates of the Key Shareholders and/or their Family Members.

		
	Representations and	  	
	Warranties of the Holder:	  	The Holder hereby represents and warrants to the Company that:
		
		  	 •   The Holder understands that the Stock has not been registered under
the Securities Act, nor qualified under any state securities laws, and that it is being offered and sold pursuant to, and in reliance upon, the exemption from such registration provided by Rule 701 promulgated under the Securities Act for security
issuances under compensatory benefit plans such as the Plan;

		
		  	 •   The Holder has been informed that the shares of Stock are restricted
securities under the Securities Act and may not be resold or transferred unless the shares of Stock are first registered under the federal securities laws or unless an exemption from such registration is available; and

		
		  	 •   The Holder is prepared to hold the shares of Stock for an indefinite
period and that the Holder is aware that Rule 144 as promulgated under the Securities Act, which exempts certain resales of restricted securities, is not presently available to exempt the resale of the shares of Stock from the registration
requirements of the Securities Act.

 *        *         *

  
 -9- 

 THE UNDERSIGNED HOLDER ACKNOWLEDGES RECEIPT OF THIS AWARD AGREEMENT AND THE PLAN, AND, AS AN EXPRESS CONDITION
TO THE GRANT OF OPTIONS UNDER THIS AWARD AGREEMENT, AGREES TO BE BOUND BY THE TERMS OF BOTH THIS AWARD AGREEMENT AND THE PLAN. 
  

			
	 TENABLE HOLDINGS, INC.
	  	HOLDER

			
	
	 

 Date:
                                         
        
 [Signature Page to Option Grant Notice and Agreement] 

  

 OPTION GRANT NOTICE AND AGREEMENT 

Tenable Holdings, Inc. (the “Company”), pursuant to its 2016 Stock Incentive Plan, as adopted on May 13, 2016 and amended
on January 18, 2017, and as may be further amended from time to time (the “Plan”), hereby grants to the Holder the number of Options set forth below, each Option representing the right to purchase one share of Stock at the
applicable Exercise Price (set forth below). The Options are subject to all of the terms and conditions set forth in this Option Grant Notice and Agreement (this “Award Agreement”), as well as all of the terms and conditions of the
Plan, all of which are incorporated herein in their entirety. Capitalized terms not otherwise defined herein shall have the same meaning as set forth in the Plan. 
  

			
	Holder:	  	
		
	Date of Grant:	  	
		
	Vesting Commencement Date:	  	
		
	Number of Options:	  	
		
	Exercise Price:	  	$
		
	Expiration Date:	  	
		
	Type of Option:	  	Nonqualified Stock Option
		
	Vesting Schedule:	  	Provided that the Holder has not undergone a Termination prior to the applicable vesting date, twenty five percent (25%) of the Options shall vest on each twelve (12) month anniversary of the Vesting Commencement Date,
rounded down to the nearest whole share; provided, that with respect to the last such yearly installment, the number of Options that vest in the installment shall be such that the Holder will be fully vested in the total number of Options
listed above as of the applicable yearly anniversary.
		
	Exercise of Options:	  	To exercise vested Options, the Holder (or his or her authorized representative) must give written notice to the Company, using the form of Option Exercise Notice attached hereto as Exhibit A, stating the number of Options
which he or she intends to exercise. The Company will issue the shares of Stock with respect to which the Options are exercised upon payment of the shares of Stock acquired in accordance with Section 5(d) of the Plan, which Section 5(d) is
incorporated herein by reference and made a part hereof; provided, however, that if the Holder wishes to use any method of exercise other than in immediately available funds in United States dollars, or by certified or bank
cashier’s check, the Holder shall have received the prior written approval of the Committee or its designee approving such method of exercise.

			
		
		  	Upon exercise of Options, the Holder will be required to satisfy applicable withholding tax obligations as provided in Section 17 of the Plan.
		
	Termination:	  	Section 5(g) of the Plan regarding treatment of Options upon Termination is incorporated herein by reference and made a part hereof. Following any such Termination, shares acquired upon exercise of any Options shall remain
subject to Sections 8 and 9 of the Plan.
		
	Restrictions on Stock:	  	Stock acquired upon exercise of any Options hereunder shall be subject to the restrictions set forth in Section 8 and 9 of the Plan.
		
	Voting Proxy:	  	As a condition of the grant of Options hereunder, the Holder hereby grants to the Investors, acting jointly, the Holder’s irrevocable proxy, and appoints the Investors, or any designee or nominee of the Investors, as the
Holder’s attorney-in-fact (with full power of substitution and resubstitution), for and in its name, place, and stead, to (i) vote or act by written consent
with respect to the Subject Shares (whether or not vested) now or hereafter owned by the Holder (or any transferee), including the right to sign the Holder’s name, as a stockholder, to any consent, certificate, or other document relating to the
Company that applicable law may require, in connection with any and all matters (other than any amendment to the Plan that would require stockholder approval), including, without limitation, the election of directors and the sale or transfer of any
Subject Shares as contemplated in Section 8 of the Plan, and (ii) take any and all action necessary to sell or otherwise transfer any Subject Shares as contemplated by Section 8 of the Plan. This proxy shall be coupled with an
interest, and the Holder agrees to take such further action or execute such other instruments as may be necessary to effectuate the intent of this proxy. In the event that any or all provisions of the proxy described hereunder are determined to be
unenforceable, the Holder shall grant a proxy that, to the fullest extent permitted by applicable law, preserves the intent of and provides the Investors with substantially the same benefits of the proxy described hereunder. The proxy described
hereunder shall terminate upon the IPO Date.
		
	Non-Interference Agreement:	  	As a condition of the grant of Options hereunder, the Holder hereby affirms all confidentiality, non-interference, invention assignment or similar covenants previously made by the Holder in
favor of the Company Group and acknowledges that such covenants are independent obligations of the Holder (such covenants, the “Non-Interference Agreement”).

  
 -2- 

			
		  	The Holder hereby acknowledges and agrees that this Award Agreement and the Non-Interference Agreement will be considered separate contracts, and the
Non-Interference Agreement will survive the termination of this Award Agreement for any reason.
		
	Additional Terms:	  	Options shall be subject to the following additional terms:
		
		  	 •   Options shall be exercisable in whole shares of Stock
only.

		
		  	 •   Each Option shall cease to be exercisable as to any share of Stock
when the Holder purchases the share of Stock or when the Option otherwise expires or is forfeited.

		
		  	 •   The Stock issued upon the exercise of any Options hereunder shall be
registered in the Holder’s name on the books of the Company during the Lock-Up Period and for such additional time as the Committee determines appropriate in its reasonable discretion. Any certificates
representing the Stock delivered to the Holder shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of the Securities and Exchange Commission,
any stock exchange upon which such shares are listed, and any applicable federal or state laws, and the Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions as the Committee
deems appropriate.

		
		  	 •   The Holder shall be the record owner of the Stock issued in respect
of the Options, and as record owner shall generally be entitled to all rights of a stockholder with respect to the Stock issued in respect of the Options.

		
		  	 •   This Award Agreement does not confer upon the Holder any right to
continue as an employee or service provider of the Service Recipient or any other member of the Company Group.

		
		  	 •   This Award Agreement shall be construed and interpreted in
accordance with the laws of the State of Delaware, without regard to the principles of conflicts of law thereof.

		
		  	 •   The Holder and the Company acknowledge that the Options are intended
to be exempt from Sections 409A and 457A of the Code, with the Exercise Price intended to be at least equal to the Fair Market Value per share of Stock on the Date of Grant.

  
 -3- 

			
		  	 Since the Stock is not traded on an established securities market, the Exercise Price has been based upon the
determination of Fair Market Value by the Committee in a manner consistent with the terms of the Plan. The Holder acknowledges that there is no guarantee that the Internal Revenue Service will agree with this valuation, and agrees not to make any
claim against the Company, the Committee, the Company’s officers or employees in the event that the Internal Revenue Service asserts that the valuation was too low or that the Options are not otherwise exempt from Section 409A of the
Code.

		
		  	 •   The Holder agrees that the Company may deliver by email all
documents relating to the Plan or the Options (including, without limitation, a copy of the Plan) and all other documents that the Company is required to deliver to its security holders (including, without limitation, disclosures that may be
required by the Securities and Exchange Commission). The Holder also agrees that the Company may deliver these documents by posting them on a website maintained by the Company or by a third party under contract with the Company. If the Company posts
these documents on a website, it shall notify the Holder by email or such other reasonable manner as then determined by the Company.

		
		  	 •   This Award Agreement and the Plan constitute the entire
understanding and agreement of the parties hereto and supersede all prior negotiations, discussions, correspondence, communications, understandings, and agreements (whether oral or written and whether express or implied) between the Company and the
Holder relating to the subject matter of this Award Agreement. Without limiting the foregoing, to the extent the Holder has entered into an employment or similar agreement with the Company or any of its affiliates, and the terms noted in such
employment or similar agreement are inconsistent with or conflict with this Award Agreement, then the terms of this Award Agreement will supersede and be deemed to amend and modify the inconsistent or conflicting terms set forth in such employment
or similar agreement.

		
	Representations and	  	
	Warranties of the	  	
	Holder:	  	The Holder hereby represents and warrants to the Company that:

  
 -4- 

			
		 	 •   The Holder understands that the Stock has not been registered under the
United States Securities Act of 1933 (the “Securities Act”), nor qualified under any state securities laws, and that it is being offered and sold pursuant to, and in reliance upon, the exemption from such registration provided by
Regulation S (Rules 901 through 905 and notes) under the Securities Act for offers and sales of securities made outside the United States. The Stock may not be offered, sold or transferred to a U.S. Person (or for the account or benefit of a U.S.
Person) or into the United States, except if such transfer is effected: In a transaction meeting the requirements of Regulation S, pursuant to an effective registration under the Securities Act; or pursuant to an exemption from the registration
requirements of the Securities Act that has been opined applicable by U.S. counsel on whose determination the Company can rely. No hedging transactions may be conducted in connection with the Stock, unless in compliance with the Securities Act. For
this purpose, a “U.S. Person” is defined by reference to Regulation S under the Securities Act, including but not limited to any natural person resident in the United States, any partnership or corporation organized or incorporated under
the laws of the United States and any account held by a dealer or fiduciary for the benefit of a U.S. Person;

		
		 	 •   The Holder has been informed that the shares of Stock are restricted
securities under the Securities Act and may not be resold or transferred unless the shares of Stock are first registered under the federal securities laws or unless an exemption from such registration is available; and

		
		 	 •   The Holder is prepared to hold the shares of Stock for an indefinite
period and that the Holder is aware that Rule 144 as promulgated under the Securities Act, which exempts certain resales of restricted securities, is not presently available to exempt the resale of the shares of Stock from the registration
requirements of the Securities Act.

 *        *        * 

  
 -5- 

 THE UNDERSIGNED HOLDER ACKNOWLEDGES RECEIPT OF THIS AWARD AGREEMENT AND THE PLAN, AND, AS AN EXPRESS CONDITION
TO THE GRANT OF OPTIONS UNDER THIS AWARD AGREEMENT, AGREES TO BE BOUND BY THE TERMS OF BOTH THIS AWARD AGREEMENT AND THE PLAN. 
  

			
	     TENABLE HOLDINGS, INC.
	  	 HOLDER

			
	
	 

 Date:
                                         

[Signature Page to Option Grant Notice and Agreement] 

             
        , 20         
 Tenable Holdings, Inc. 

7021 Columbia Gateway Drive, Ste 500 
 Columbia, MD 21046 

Attn: Legal Department 
  

	Re:	Notice of Exercise 

  

	1.	By delivery of this Notice of Exercise, I am irrevocably electing to exercise options to purchase shares of common stock, par value $0.01 per share (“Shares”) of Tenable Holdings, Inc. (the
“Company”) granted to me under the Company’s 2016 Stock Incentive Plan (the “Plan”). 

  

	2.	The number of Shares I wish to purchase by exercising my options is                     . 

 

	3.	The applicable purchase price (or exercise price) is $             per Share, resulting in an aggregate purchase price of
$         (the “Aggregate Purchase Price”). 

  

	4.	I am satisfying my obligation to pay the Aggregate Purchase Price by delivering to the Company, with this Notice of Exercise, an amount equal to the Aggregate Purchase Price in immediately available United States
dollars, or by certified or bank cashier’s check. 

  

	5.	To satisfy the applicable withholding taxes, I have enclosed an amount equal to the applicable withholding taxes in immediately available United States dollars, or by certified or bank cashier’s check.

  

	6.	I hereby agree to be bound by all of the terms and conditions set forth in the Plan and any award agreement to which the options were granted under. If I am not the person to whom the options were granted by the
Company, proof of my right to purchase the Shares of the Company is enclosed. 

  

	7.	I have been advised to consult with any legal, tax or financial advisors I have chosen in connection with the purchase of the Shares. 

[Signature Page Follows] 

  
 - 1 - 

							
	Dated: 	 		 		  	
				
	*                                     
                                         
                                      	 		 		  	
	(Optionee’s signature)	 		 		  	  
 (Additional signature, if
necessary)

		 		 		  	
	  
 (Print name)
	 		 		  	  
 (Print name)

		 		 		  	
	  
  
	 		 		  	  
  

	  
 (Full address)
	 		 		  	  
 (Full address)

  

	*	Each person in whose name Shares are to be registered must sign this Notice of Exercise. (If more than one name is listed, specify whether the owners will hold the Shares as community property or as joint tenants with
the right of survivorship). 

 RESTRICTED STOCK GRANT NOTICE AND AGREEMENT 

Tenable Holdings, Inc. (the “Company”), pursuant to its 2016 Stock Incentive Plan, as adopted on May 13, 2016, as
amended on January 18, 2017, and as further amended and amended and restated from time to time (the “Plan”), hereby grants to the Holder the number of shares of Restricted Stock set forth below. The shares of Restricted Stock
are subject to all of the terms and conditions set forth in this Restricted Stock Grant Notice and Agreement (this “Award Agreement”), as well as all of the terms and conditions of the Plan, all of which are incorporated herein in
their entirety. The shares of Restricted Stock granted hereby are in satisfaction of the obligation to grant the Holder equity under his employment letter with the Company, dated October 23, 2016, as may be amended, restated or otherwise
modified from time to time (the “Employment Letter”). Capitalized terms not otherwise defined herein shall have the same meaning as set forth in the Plan. 
  

			
	Holder:	  	
		
	Date of Grant:	  	
		
	Vesting Commencement Date:	  	
		
	Number of Shares of Restricted Stock:	  	
		
	Vesting Schedule:	  	Provided that the Holder has not undergone a Termination prior to the applicable vesting date, and except as otherwise provided herein, twenty-five percent (25%) of the shares of Restricted Stock shall vest on the twelve
(12) month anniversary of the Vesting Commencement Date, and the remainder shall vest in substantially equal quarterly installments, rounded down to the nearest whole share, on each quarterly anniversary of the Vesting Commencement Date for a
period of twelve (12) quarters thereafter; provided, that with respect to the last such quarterly installment, the number of shares of Restricted Stock that vest in the installment shall be such that the Holder will be fully vested in
the total number of shares of Restricted Stock listed above as of the fourth anniversary of the Vesting Commencement Date.
		
	Acceleration:	  	Notwithstanding the foregoing, (A) if the Holder’s employment orservice with the Service Recipient is terminated by the Service Recipient (other than for Cause (as defined in the Employment Letter)) or on account of the
Holder’s death or Disability or by the Holder for Good Reason (as defined in the Employment Letter) at any time following the first anniversary of the Vesting Commencement Date, and if as of the effective date of the Termination the Restricted
Stock has not already become fully

			
		  	vested, Holder shall be credited with an additional vesting percentage equal to the product of 6.25% multiplied by a fraction, the numerator of which is equal to the number of completed months of continuous service with the
Service Recipient that have elapsed since the quarterly anniversary of the Vesting Commencement Date and the denominator of which is three (3), subject to the Holder’s execution of the Company’s standard form of release agreement not later
than forty-five (45) days following the effective date of such Termination (in which the Holder releases any and all known and unknown claims the Holder may have against the Company Group and its affiliates); and (B) if the Holder’s
employment or service with the Service Recipient is terminated by the Service Recipient (other than for Cause) or on account of the Holder’s death or Disability or by the Holder for Good Reason during the twelve (12) months following the
consummation of a Change in Control (as defined in the Employment Letter), any Restricted Stock that has not previously vested shall vest immediately as of the effective date of such Termination, provided, that if the Holder’s employment with
the Service Recipient is terminated by the Service Recipient (other than for Cause) or on account of Holder’s death or Disability or by the Holder for Good Reason, any then-unvested Restricted Stock shall remain outstanding but will not vest
and will be repurchased in accordance with Section 6(c) of the Plan on the ninety (90) day anniversary of such Termination unless the Company enters into a definitive agreement providing for a Change in Control within such ninety
(90) day period, in which case such Restricted Stock shall immediately accelerate and become vested as of the Change in Control, in each case, subject to the Holder’s execution of the Company’s standard form of release agreement not
later than forty-five (45) days following the Holder’s Termination (in which the Holder releases any and all known and unknown claims the Holder may have against the Company Group and its affiliates). For avoidance of doubt and with
respect to any vesting acceleration under clause (A) above, if the effective date of a Termination without Cause or for Good Reason occurs before the first anniversary date of the Vesting Commencement Date, no additional vesting for a partial
year will be provided under clause (A) of the preceding sentence.
		
	 Termination:
	  	Section 6(c) of the Plan regarding treatment of Restricted Stock upon Termination is incorporated herein by reference and made a part hereof. Following any such Termination, the provisions of Sections 8 of the Plan shall apply to
all shares of Restricted Stock that have vested on or prior to such Termination, except as provided in the following paragraph.

  
 -2- 

			
	Restrictions on Stock:	  	Stock acquired hereunder shall be subject to the restrictions set forth in Sections 8 of the Plan; provided, that Section 8(e) of the Plan shall not apply to the Stock acquired hereunder.
		
	Adjustment of Shares:	  	Subject to the provisions of the Articles of Incorporation of the Company, if (a) there is any stock dividend or liquidating dividend of cash and/or property, stock split or other change in the character or amount of any of
the outstanding securities of the Company, or (b) there is any consolidation, merger or sale of all or substantially all of the assets of the Company, then, in such event, any and all new, substituted or additional securities or other cash or
property to which Holder is entitled by reason of Holder’s ownership of shares of Stock acquired hereunder shall be immediately subject to the terms of this Award Agreement, with the same force and effect as the shares of Stock subject to such
provisions. Appropriate adjustments shall be made to the number and/or class of shares subject to the terms of this Award Agreement to reflect the exchange or distribution of such securities. In the event of a merger or consolidation of the Company
with or into another entity or any other corporate reorganization, the Company’s rights may be exercised by the Company’s successor.
		
	Drag-Along Rights:	  	 In lieu of the Drag-Along Rights specified in Section 8(b) of the Plan, the following will apply to the shares of Stock acquired
hereunder. Notwithstanding any provision of this Award Agreement to the contrary, if at any time the Board approves a sale of the Company, Holder agrees that he or she will consent to and raise no objections against the sale of the Company, and if
the sale of the Company is structured as (i) a merger or consolidation of the Company, or a sale of all or substantially all of the assets of the Company, Holder will waive any dissenters’ rights, appraisal rights or similar rights in
connection with such merger, consolidation or asset sale, or (ii) a sale of all or substantially all of the Stock of the Company, Holder agrees to sell all of his shares of Stock acquired under the Plan in the sale of the Company, on the terms
and conditions approved by the Board. Holder hereby agrees to take all necessary and desirable actions approved by the Board in connection with the consummation of the sale of the Company, including voting for, giving written consent to the sale of
the Company and executing such agreements and such instruments and completing other actions reasonably necessary to (x) subject to the last sentence of this paragraph, provide customary representations, warranties, indemnities, and escrow
arrangements relating to such sale of the Company and (y) effectuate the allocation and distribution of the aggregate consideration upon the sale of the Company. In connection with such sale of the Company, (1) Holder’s
representations and warranties shall be limited to ownership and authority to vote and/or transfer the shares of Stock

  
 -3- 

			
		  	(the “Individual Representations and Warranties”), and (2) except in the case of a breach of Holder’s Individual Representations and Warranties, Holder’s liability for indemnification obligations
in excess of any escrow amounts shall be several (and not joint) and shall not exceed Holder’s pro-rata portion of the total consideration received by the Company’s shareholders in such
transaction.
		
	 Non-Interference Agreement:
	  	As a condition of the grant of Restricted Stock hereunder, the Holder hereby affirms the confidentiality, invention assignment, non-solicit and
non-competition covenants previously made by the Holder in favor of the Company Group pursuant to that certain Intellectual Property, Non-Disclosure, Non-Solicitation, and Non- Competition Agreement entered into by and between the Service Recipient and the Holder dated as of January 2, 2017 and acknowledges that such
covenants are independent obligations of the Holder (such covenants, the “Non-Interference Agreement”). The Holder hereby acknowledges and agrees that this Award Agreement and the Non-Interference Agreement will be considered separate contracts, and the Non-Interference Agreement will survive the termination of this Award Agreement for any
reason.
		
	 Golden Parachute Considerations:
	  	Section 6 of the Employment Letter shall apply to the shares of Restricted Stock granted pursuant to this Award Agreement instead of Section 12 of the Plan.
		
	Additional Terms:	  	The shares of Restricted Stock shall be subject to the following additional terms:
		
		  	 •   Section 9, Section 10 and the penultimate sentence of Section 21(h) of
the Plan shall not apply to this Award Agreement.

		
		  	 •   The shares of Restricted Stock granted hereunder shall be registered
in the Holder’s name on the books of the Company during the Lock-Up Period and for such additional time as the Committee determines appropriate in its reasonable discretion. Any certificates representing the vested shares of Restricted Stock
delivered to the Holder shall be subject to such stop transfer orders and other restrictions as the Committee may deem advisable under the rules, regulations, and other requirements of the Securities and Exchange Commission, any stock exchange upon
which such shares are listed, and any applicable federal or state laws, and the Committee may cause a 

  
 -4- 

			
		  	 •   legend or legends to be put on any such certificates to make
appropriate reference to such restrictions as the Committee deems appropriate.

		
		  	 •   The Holder shall be the record owner of the shares of Restricted
Stock until or unless such shares of Restricted Stock are forfeited or repurchased, or otherwise sold or transferred in accordance with the terms of the Plan, and as record owner shall generally be entitled to all rights of a stockholder with
respect to the shares of Restricted Stock; provided, however, that the Company will retain custody of all dividends and distributions, if any (“Retained Distributions”), made or declared on the shares of Restricted
Stock (and such Retained Distributions shall be subject to forfeiture and the same restrictions, terms and vesting and other conditions as are applicable to the shares of Restricted Stock) until such time, if ever, as the shares of Restricted Stock
with respect to which such Retained Distributions shall have been made, paid or declared shall have become vested, and such Retained Distributions shall not bear interest or be segregated in a separate account. As soon as practicable following each
applicable vesting date any applicable Retained Distributions shall be delivered to the Holder.

		
		  	 •   Upon vesting of the shares of Restricted Stock (or such other time
that the shares of Restricted Stock are taken into income), the Holder will be required to satisfy applicable withholding tax obligations, if any, as provided in the Plan.

		
		  	 •   This Award Agreement does not confer upon the Holder any right to
continue as an employee or service provider of the Service Recipient or any other member of the Company Group.

		
		  	 •   This Award Agreement shall be construed and interpreted in
accordance with the laws of the State of Delaware, without regard to the principles of conflicts of law thereof.

		
		  	 •   The Holder agrees that the Company may deliver by email all
documents relating to the Plan or the shares of Restricted Stock (including, without limitation, a copy of the Plan) and all other documents that the Company is required to deliver to its security holders (including, without limitation, disclosures
that may be required by the Securities and Exchange Commission). The Holder also agrees that the Company may deliver these documents by

  
 -5- 

			
		  	 posting them on a website maintained by the Company or by a third party under contract with the Company. If the
Company posts these documents on a website, it shall notify the Holder by email or such other reasonable manner as then determined by the Company.

		
		  	 •   This Award Agreement, the Employment Letter and the Plan constitute
the entire understanding and agreement of the parties hereto and supersede all prior negotiations, discussions, correspondence, communications, understandings, and agreements (whether oral or written and whether express or implied) between the
Company and the Holder relating to the subject matter of this Award Agreement. To the extent this Award Agreement conflicts with the terms of the Plan, the terms of this Award Agreement will control as applied to the Restricted Stock. Without
limiting the foregoing, to the extent the Holder has entered into an employment or similar agreement with the Company or any of its affiliates, and the terms noted in such employment or similar agreement are inconsistent with or conflict with this
Award Agreement, then the terms of this Award Agreement will supersede and be deemed to amend and modify the inconsistent or conflicting terms set forth in such employment or similar agreement.

		
	Representations and Warranties of the Holder:	  	The Holder hereby represents and warrants to the Company that:
		
		  	 •   The Holder understands that the Stock has not been registered under
the Securities Act, nor qualified under any state securities laws, and that it is being offered and sold pursuant to an exemption from such registration and qualification based in part upon the Holder’s representations contained herein; the
Stock is being issued to the Holder hereunder in reliance upon the exemption from such registration provided by Section 4(a)(2) of the Securities Act for transactions by an issuer not involving any public offering, and in connection therewith,
the Holder acknowledges the Holder’s status as an “accredited investor” within the meaning of Rule 501 promulgated under the Securities Act;

		
		  	 •   The Holder is an “accredited investor” as such term is
defined in Rule 501(a) of the Securities Act and has such knowledge and experience in financial and business matters that the Holder is capable of evaluating the merits and risks

  
 -6- 

			
		  	 of the investment contemplated by this Award Agreement; and the Holder is able to bear the economic risk of this
investment in the Company (including a complete loss of this investment);

		
		  	 •   Except as specifically provided herein or in the Plan, the Holder has
no contract, undertaking, understanding, agreement or arrangement, formal or informal, with any person to sell, transfer or pledge all or any portion of his, her or its Stock, and has no current plans to enter into any such contract, undertaking,
understanding, agreement or arrangement;

		
		  	 •   The Holder has not seen, received, been presented with, or been
solicited by any leaflet, public promotional meeting, article or any other form of advertising or general solicitation as to the Company’s sale to the Holder of his, her or its Stock;

		
		  	 •   The Holder is familiar with the business and operations of the Company
and has been afforded an opportunity to ask such questions of the Company’s agents, accountants and other representatives concerning the Company’s proposed business, operations, financial condition, assets, liabilities and other relevant
matters as he has deemed necessary or desirable, in order to evaluate the merits and risks of the investment contemplated herein;

		
		  	 •   The Holder has been informed that the shares of Stock are restricted
securities under the Securities Act and may not be resold or transferred unless the shares of Stock are first registered under the federal securities laws or unless an exemption from such registration is available; and

		
		  	 •   The Holder is prepared to hold the shares of Stock for an indefinite
period and that the Holder is aware that Rule 144 as promulgated under the Securities Act, which exempts certain resales of restricted securities, is not presently available to exempt the resale of the shares of Stock from the registration
requirements of the Securities Act.

		
		  	* * *

  
 -7- 

 EXECUTION COPY 

THE UNDERSIGNED HOLDER ACKNOWLEDGES RECEIPT OF THIS AWARD AGREEMENT AND THE PLAN, AND, AS AN EXPRESS CONDITION TO THE GRANT OF RESTRICTED STOCK UNDER THIS
AWARD AGREEMENT, AGREES TO BE BOUND BY THE TERMS OF BOTH THIS AWARD AGREEMENT AND THE PLAN. 
  

							
	TENABLE HOLDINGS, INC.	 	              HOLDER

									
				
	By:	  	  
	  		 	                                   
                                         
                 
		  	 Signature
	  		 		 	Signature
	Title: 	  	  
	  		 	Date: 
	Date:

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00285-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00285-of-00352.parquet"}]]