Exhibit 10.1



 Exhibit 10.1 

TA THI PARENT, INC. 

2014 STOCK OPTION AND GRANT PLAN 
  

	SECTION 1.	GENERAL PURPOSE OF THE PLAN; DEFINITIONS 

 The name of the plan is the TA THI Parent,
Inc. 2014 Stock Option and Grant Plan (the “Plan”). The purpose of the Plan is to encourage and enable the officers, employees, directors and other key persons (including prospective employees, but conditioned on their employment,
and Consultants) of TA THI Parent, Inc., a Delaware corporation (including any successor entity, the “Company”) and any Subsidiary, upon whose judgment, initiative and efforts the Company largely depends for the successful conduct
of its business, to acquire a proprietary interest in the Company. It is anticipated that providing such persons with a direct stake in the Company’s welfare will assure a closer identification of their interests with those of the Company and
its stockholders, thereby stimulating their efforts on the Company’s behalf and strengthening their desire to remain with the Company. 

The following terms shall be defined as set forth below: 

“Act” means the Securities Act of 1933, as amended, and the rules and regulations thereunder. 

“Award” or “Awards,” except where referring to a particular category of grant under the Plan, shall include
Incentive Stock Options, Non-Qualified Stock Options, Restricted Stock Awards, Unrestricted Stock Awards, Restricted Stock Units or any combination of the foregoing. 

“Award Agreement” means a written or electronic agreement setting forth the terms and provisions applicable to an Award
granted under the Plan. Each Award Agreement may contain terms and conditions in addition to those set forth in the Plan; provided, however, that except to the extent explicitly provided to the contrary, in the event of any conflict in the
terms of the Plan and the Award Agreement, the terms of the Plan shall govern. 
 “Board” means the Board of
Directors of the Company. 
 “Cause” shall have the meaning as set forth in the Award Agreement(s). In the case that any
Award Agreement does not contain a definition of “Cause,” it shall have the meaning as determined in good faith by the Board. 

“Chief Executive Officer” means the Chief Executive Officer of the Company or, if there is no Chief Executive Officer, then
the President of the Company. 
 “Code” means the Internal Revenue Code of 1986, as amended, and any successor Code, and
related rules, regulations and interpretations. 
 “Committee” means the Committee referred to in Section 2. 







 “Consultant” means any natural person that provides bona fide services to the
Company (including a Subsidiary), and such services are not in connection with the offer or sale of securities in a capital-raising transaction and do not directly or indirectly promote or maintain a market for the Company’s securities. 

“Deferral Period” means, with respect to a Restricted Stock Unit, the period of time between the date of grant of such
Restricted Stock Unit and the date on which such Restricted Stock Unit is due to be settled in accordance with its terms. 

“Effective Date” means the date on which the Plan is approved by stockholders as set forth on the final page of the Plan.

 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations thereunder. 

“Fair Market Value” of the Stock on any given date means the fair market value of the Stock determined in good faith by the
Committee based on the reasonable application of a reasonable valuation method not inconsistent with Section 409A of the Code. If the Stock is admitted to quotation on a national securities exchange, the determination shall be made by reference
to market quotations. If the date for which Fair Market Value is determined is the first day when trading prices for the Stock are reported on a national securities exchange, the Fair Market Value shall be the “Price to the Public” (or
equivalent) set forth on the cover page for the final prospectus relating to the Company’s Initial Public Offering. 

“Incentive Stock Option” means any Stock Option designated and qualified as an “incentive stock option” as defined
in Section 422 of the Code. 
 “Initial Public Offering” means the consummation of the first fully underwritten, firm
commitment public offering pursuant to an effective registration statement under the Act covering the offer and sale by the Company of its equity securities, as a result of or following which the Stock shall be publicly held. 

“NASDAQ” means the NASDAQ Stock Market LLC. 

“Non-Qualified Stock Option” means any Stock Option that is not an Incentive Stock Option. 

“Option” or “Stock Option” means any option to purchase shares of Stock granted pursuant to Section 5.

 “Restricted Stock Award” means an Award granted pursuant to Section 6 entitling the recipient to acquire, at such
purchase price (which may be zero) as determined by the Committee, shares of Stock subject to such restrictions and conditions as the Committee may determine at the time of grant, which purchase price shall be payable in cash or other form of
consideration acceptable to the Committee. 
 “Restricted Stock Unit” means an Award of phantom stock units to a grantee,
which may be settled in cash or stock as determined by the Committee, pursuant to Section 8. 







 “Sale Event” shall mean and include any of the following: (a) consummation
of a merger or consolidation of the Company with or into any other corporation or other entity in which holders of the Company’s voting securities immediately prior to such merger or consolidation will not, directly or indirectly, continue to
hold at least a majority of the outstanding voting securities of the Company; (b) a sale, lease, exchange or other transfer (in one transaction or a related series of transactions) of all or substantially all of the Company’s and its
Subsidiaries’ assets on a consolidated basis to an unrelated person or entity; (c) the acquisition by any person or any group of persons, acting together in any transaction or related series of transactions, of such quantity of the
Company’s voting securities as causes such person, or group of persons, to own beneficially, directly or indirectly, as of the time immediately after such transaction or related series of transactions, 50 percent or more of the combined voting
power of the voting securities of the Company other than as a result of (i) an acquisition of securities directly from the Company or (ii) an acquisition of securities by the Company which, by reducing the voting securities outstanding,
increases the proportionate voting power represented by the voting securities owned by any such person or group of persons to 50 percent or more of the combined voting power of such voting securities; or (d) the liquidation or dissolution of
the Company. Notwithstanding anything to the contrary herein, an Initial Public Offering shall not be deemed a Sale Event. 

“Section 409A” means Section 409A of the Code and the regulations and other guidance promulgated thereunder. 

“Stock” means the Common Stock, par value $0.001 per share, of the Company, subject to adjustments pursuant to
Section 3. 
 “Subsidiary” means any corporation or other entity (other than the Company) in which the Company has
more than a 50 percent interest, either directly or indirectly. 
 “Ten Percent Owner” means an employee who owns or is
deemed to own (by reason of the attribution rules of Section 424(d) of the Code) more than 10 percent of the combined voting power of all classes of stock of the Company or any parent of the Company or any Subsidiary. 

“Unrestricted Stock Award” means an Award of shares of Stock, free of any vesting restrictions, granted pursuant to
Section 7. 
  

	SECTION 2.	ADMINISTRATION OF PLAN; COMMITTEE AUTHORITY TO SELECT GRANTEES AND DETERMINE AWARDS 

 (a)
Administration of Plan. The Plan shall be administered by the Board, or at the discretion of the Board, by a committee of the Board, comprised, except as contemplated by Section 2(c), of not less than two Directors. All references herein
to the “Committee” shall be deemed to refer to the group then responsible for administration of the Plan at the relevant time (i.e., either the Board of Directors or a committee or committees of the Board, as applicable). 







 (b) Powers of Committee. The Committee shall have the power and authority to grant Awards
consistent with the terms of the Plan, including the power and authority: 
 (i) to select the individuals to whom Awards may from time to
time be granted; 
 (ii) to determine the time or times of grant, and the amount, if any, of Incentive Stock Options, Non-Qualified Stock Options, Restricted Stock Awards, Unrestricted Stock Awards, Restricted Stock Units, or any combination of the foregoing, granted to any one or more grantees; 

(iii) to determine the number of shares of Stock to be covered by any Award and, subject to the provisions of Section 5(a)(i) below, the
price, exercise price, conversion ratio or other price relating thereto; 
 (iv) to determine and, subject to Section 12, to modify
from time to time the terms and conditions, including restrictions, not inconsistent with the terms of the Plan, of any Award, which terms and conditions may differ among individual Awards and grantees, and to approve the form of written instruments
evidencing the Awards; 
 (v) to accelerate at any time the exercisability or vesting of all or any portion of any Award; 

(vi) to impose any limitations on Awards granted under the Plan, including limitations on transfers, repurchase provisions and the like, and
to exercise repurchase rights or obligations; 
 (vii) subject to any restrictions applicable to Incentive Stock Options, to extend at any
time the period in which Stock Options may be exercised; and 
 (viii) at any time to adopt, alter and repeal such rules, guidelines and
practices for administration of the Plan and for its own acts and proceedings as it shall deem advisable; to interpret the terms and provisions of the Plan and any Award (including related written instruments); to make all determinations it deems
advisable for the administration of the Plan; to decide all disputes arising in connection with the Plan; and to otherwise supervise the administration of the Plan. 

All decisions and interpretations of the Committee shall be binding on all persons, including the Company and Plan grantees. 

(c) Delegation of Authority to Grant Options. Subject to applicable law, the Committee, in its discretion, may delegate to the Chief
Executive Officer of the Company the power to designate officers or employees to be recipients of Options, and to determine the number of such Options to be received by such officers or employees; provided, however, that the resolution
so authorizing the Chief Executive Officer shall specify the total number of Options the Chief Executive Officer may so award and may not delegate to the Chief Executive Officer the authority to set the strike price or the vesting terms of such
Options. Any such delegation by the Committee shall also provide that the Chief Executive Officer may not grant awards to himself or herself (or other members of senior management) without the approval of the Committee. The Committee may revoke or
amend the terms of a delegation at any time but such action shall not invalidate any prior actions of the Committee’s delegate or delegates that were consistent with the terms of the Plan. 







 (d) Award Agreement. Awards under the Plan shall be evidenced by Award Agreements that set
forth the terms, conditions and limitations for each Award and may include, without limitation, the term of an Award, the provisions applicable in the event employment or service terminates, and the Company’s authority to unilaterally or
bilaterally amend, modify, suspend, cancel or rescind an Award. 
 (e) Indemnification. Neither the Board nor the Committee, nor any
member of either or any delegate thereof, shall be liable for any act, omission, interpretation, construction or determination made in good faith in connection with the Plan, and the members of the Board and the Committee (and any delegate thereof)
shall be entitled in all cases to indemnification and reimbursement by the Company in respect of any claim, loss, damage or expense (including, without limitation, reasonable attorneys’ fees) arising or resulting therefrom to the fullest extent
permitted by law and/or under the Company’s governing documents, including its articles or bylaws, or any directors’ and officers’ liability insurance coverage which may be in effect from time to time and/or any indemnification
agreement between such individual and the Company. 
 (f) Foreign Award Recipients. Notwithstanding any provision of the Plan to the
contrary, in order to comply with the laws in other countries in which the Company and any Subsidiary operate or have employees or other individuals eligible for Awards, the Committee, in its sole discretion, shall have the power and authority to:
(i) determine which Subsidiaries, if any, shall be covered by the Plan; (ii) determine which individuals, if any, outside the United States are eligible to participate in the Plan; (iii) modify the terms and conditions of any Award
granted to individuals outside the United States to comply with applicable foreign laws; (iv) establish subplans and modify exercise procedures and other terms and procedures, to the extent the Committee determines such actions to be necessary
or advisable (and such subplans and/or modifications shall be attached to the Plan as appendices); provided, however, that no such subplans and/or modifications shall increase the share limitation contained in Section 3(a) hereof;
and (v) take any action, before or after an Award is made, that the Committee determines to be necessary or advisable to obtain approval or comply with any local governmental regulatory exemptions or approvals. Notwithstanding the foregoing,
the Committee may not take any actions hereunder, and no Awards shall be granted, that would violate the Exchange Act or any other applicable United States securities law, the Code, or any other applicable United States governing statute or law.

 (g) Deferral Arrangement. The Committee may establish rules and procedures, consistent with Section 409A, setting forth the
circumstances under which the distribution or the receipt of Stock and other amounts payable with respect to an Award may be deferred either automatically or at the election of the grantee and whether and to what extent the Company may pay or credit
amounts constituting interest (at rates determined by the Committee) or dividends or deemed dividends on such deferrals. 








	SECTION 3.	STOCK ISSUABLE UNDER THE PLAN; MERGERS AND OTHER TRANSACTIONS; SUBSTITUTION 

 (a)
Stock Issuable. The maximum number of shares of Stock reserved and available for issuance under the Plan shall be 247,903 shares, subject to adjustment as provided in Section 3(b). For purposes of this limitation, the shares of
Stock underlying any Awards that are forfeited, canceled, withheld upon exercise of an Option or settlement of an Award to cover the exercise price or tax withholding, reacquired by the Company prior to vesting, satisfied without the issuance of
Stock or otherwise terminated (other than by exercise), in each case shall be added back to the shares of Stock available for issuance under the Plan. Subject to such overall limitations, shares of Stock may be issued up to such maximum number
pursuant to any type or types of Award, and no more than 247,903 shares may be issued in the form of Incentive Stock Options. The shares available for issuance under the Plan may be authorized but unissued shares of Stock or shares of Stock
reacquired by the Company. 
 (b) Changes in Stock. Subject to Section 3(c) hereof, if, as a result of any reorganization,
recapitalization, reclassification, stock dividend, stock split, reverse stock split or other similar change in the Company’s capital stock, the outstanding shares of Stock are increased or decreased or are exchanged for a different number or
kind of shares or other securities of the Company, or additional shares or new or different shares or other securities of the Company or other non-cash assets are distributed with respect to such shares of Stock or other securities, or, if, as a
result of any merger or consolidation, or sale of all or substantially all of the assets of the Company, the outstanding shares of Stock are converted into or exchanged for securities of the Company or any successor entity (or a parent or subsidiary
thereof), the Committee shall make an appropriate and equitable or proportionate adjustment in (i) the maximum number of shares reserved for issuance under the Plan, (ii) the number and kind of shares or other securities subject to any
then outstanding Awards under the Plan, (iii) the repurchase price, if any, per share subject to each outstanding Restricted Stock Award, and (iv) the exercise price for each share subject to any then outstanding Stock Options under the
Plan, without changing the aggregate exercise price (i.e., the exercise price multiplied by the number of Stock Options) as to which such Stock Options remain exercisable. The adjustment by the Committee shall be final, binding and conclusive. No
fractional shares of Stock shall be issued under the Plan resulting from any such adjustment, but the Committee in its discretion may make a cash payment in lieu of fractional shares. 

(c) Sale Events. 
 (i)
Subject to and effective immediately prior to the consummation of a Sale Event, except as the Committee may otherwise specify with respect to particular Awards in the relevant Award Agreement, all Options that are not exercisable immediately prior
to the effective time of the Sale Event shall become fully exercisable as of the consummation of the Sale Event and all other Awards shall become fully vested and nonforfeitable as of such consummation. In addition, all outstanding Awards granted
hereunder shall terminate (other than any rights in favor of the Company to repurchase any Stock underlying any Award), unless provision is made in connection with the Sale Event in the sole discretion of the parties to the Sale Event for the
assumption or continuation by the successor entity of Awards theretofore granted, or the substitution of such Awards with new awards of the successor entity or parent thereof, with an 







 
equitable or proportionate adjustment as to the number and kind of shares and, if appropriate, the per share exercise prices, as such parties shall agree (after taking into account any
acceleration hereunder). 
 (ii) In the event the Plan and all outstanding Awards terminate in connection with a Sale Event each grantee
shall be permitted, within a specified period of time prior to the consummation of the Sale Event as determined by the Committee, to exercise all outstanding Options held by such grantee, including those that will become exercisable upon the
consummation of the Sale Event; provided, however, that the exercise of Options not exercisable prior to the Sale Event shall be subject to the consummation of the Sale Event. 

(iii) Notwithstanding anything to the contrary herein, the Company shall have the right, but not the obligation in connection with a Sale
Event, to make or provide for a cash payment to grantees holding Options, in exchange for the cancellation thereof, in an amount equal to the difference between (A) the value as determined by the Committee of the consideration payable, or
otherwise to be received by stockholders, per share of Stock pursuant to a Sale Event multiplied by the number of shares of Stock subject to outstanding Options (to the extent then exercisable, including by reason of vesting acceleration, at prices
not in excess of the applicable sale price for the Stock in the Sale Event) and (B) the aggregate exercise price of all such outstanding Options (to the extent then exercisable, including by reason of vesting acceleration, at prices not in
excess of the Sale Price), subject to the other terms and conditions of the Sale Event (such as indemnification obligations and purchase price adjustments) to the extent provided by the parties. 

(d) Substitute Awards. The Committee may grant Awards under the Plan in substitution for stock and similar stock-based awards held by
employees, directors or other key persons of another corporation in connection with the merger or consolidation of the employing corporation with the Company or a Subsidiary or the acquisition by the Company or a Subsidiary of property or stock of
the employing corporation. The Committee may direct that the substitute awards be granted on such terms and conditions as the Committee considers appropriate in the circumstances. Any substitute Awards granted under the Plan shall not count against
the share limitation set forth in Section 3(a). 
  

	SECTION 4.	ELIGIBILITY 

 Grantees under the Plan will be such full or part-time officers and other
employees, directors and key persons (including prospective employees, but conditioned on their employment, and Consultants) of the Company and any Subsidiary who are selected from time to time by the Committee in its sole discretion;
provided, however, that an Incentive Stock Option may be granted only to a person who, at the time the Incentive Stock Option is granted, is an employee of the Company or any Subsidiary. 

 

	SECTION 5.	STOCK OPTIONS 

 Any Stock Option granted under the Plan must be made pursuant to a Stock
Option Award Agreement in such form as the Committee may from time to time approve. Option Award Agreements need not be identical. 







 Stock Options granted under the Plan may be either Incentive Stock Options or Non-Qualified Stock
Options. Incentive Stock Options may be granted only to employees of the Company or any Subsidiary that is a “subsidiary corporation” within the meaning of Section 424(f) of the Code. To the extent that any Option does not qualify as
an Incentive Stock Option, it shall be deemed a Non-Qualified Stock Option. 
 No Incentive Stock Option shall be granted under the Plan
after the date which is ten years from the date the Plan is approved by the Board. 
 (a) Terms of Stock Options. The Committee in
its discretion may grant Stock Options to eligible employees and key persons of the Company or any Subsidiary. Stock Options granted pursuant to this Section 5(a) shall be subject to the following terms and conditions and shall contain such
additional terms and conditions, not inconsistent with the terms of the Plan, as the Committee shall deem desirable. If the Committee so determines, Stock Options may be granted in lieu of cash compensation at the optionee’s election, subject
to such terms and conditions as the Committee may establish. 
 (i) Exercise Price. The exercise price per share for the Stock
covered by a Stock Option granted pursuant to Section 5(a) shall be determined by the Committee at the time of grant but shall not be less than 100 percent of the Fair Market Value on the date of grant in the case of an Incentive Stock Option.
In the case of an Incentive Stock Option that is granted to a Ten Percent Owner, the option price of such Incentive Stock Option shall be not less than 110 percent of the Fair Market Value on the grant date. 

(ii) Option Term. The term of each Stock Option shall be fixed by the Committee, but no Stock Option shall be exercisable more than ten
years after the date the Stock Option is granted. In the case of an Incentive Stock Option that is granted to a Ten Percent Owner, the term of such Stock Option shall be no more than five years from the date of grant. 

(iii) Exercisability; Rights of a Stockholder. Stock Options shall become exercisable at such time or times, whether or not in
installments, as shall be determined by the Committee at or after the grant date. An optionee shall have the rights of a stockholder only as to shares acquired upon the exercise of a Stock Option and not as to unexercised Stock Options. An optionee
shall not be deemed to have acquired any such shares unless and until a Stock Option shall have been exercised pursuant to the terms hereof, the Company shall have issued and delivered a certificate representing the shares to the optionee, and the
optionee’s name shall have been entered on the books of the Company as a stockholder. 
 (iv) Method of Exercise. Stock Options
may be exercised by an optionee in whole or in part, by the optionee giving written notice of exercise to the Company, specifying the number of shares to be purchased. Payment of the purchase price may be made by one or more of the following methods
(or any combination thereof) to the extent provided in the Option Award Agreement: 
 (A) In cash, by certified or bank
check, by wire transfer of immediately available funds, or other instrument acceptable to the Committee; 







 (B) By the optionee delivering to the Company a promissory note, if the Board has
expressly authorized the loan of funds to the optionee for the purpose of enabling or assisting the optionee to effect the exercise of his or her Stock Option; provided, that at least so much of the exercise price as represents the par value
of the Stock shall be paid other than with a promissory note if required by state law; 
 (C) If the Initial Public Offering
has occurred, through the delivery (or attestation to the ownership) of shares of Stock that have been purchased by the optionee on the open market or that are beneficially owned by the optionee and are not then subject to restrictions under any
Company plan. To the extent required to avoid variable accounting treatment under FAS 123R or other applicable accounting rules, such surrendered shares if originally purchased from the Company shall have been owned by the optionee for at least six
months. Such surrendered shares shall be valued at Fair Market Value on the exercise date; 
 (D) If permitted by the
Committee with respect to Stock Options that are not Incentive Stock Options, by a “net exercise” arrangement pursuant to which the Company will reduce the number of shares of Stock issuable upon exercise by the largest whole number of
shares with a Fair Market Value that does not exceed the aggregate exercise price; and 
 (E) If permitted by the Committee,
by the optionee delivering to the Company a properly executed exercise notice together with irrevocable instructions to a broker to promptly deliver to the Company cash or a check payable and acceptable to the Company for the purchase price;
provided that in the event the optionee chooses to pay the purchase price as so provided, the optionee and the broker shall comply with such procedures and enter into such agreements of indemnity and other agreements as the Committee shall
prescribe as a condition of such payment procedure; 
 Payment instruments will be received subject to collection. No certificates for
shares of Stock so purchased will be issued to the optionee until the Company has completed all steps required by law to be taken in connection with the issuance and sale of the shares, including without limitation (i) receipt of a
representation from the optionee at the time of exercise of the Option that the optionee is purchasing the shares for the optionee’s own account and not with a view to any sale or distribution thereof, (ii) the legending of any certificate
representing the shares to evidence the foregoing restrictions, and (iii) obtaining from optionee payment or provision for all withholding taxes due as a result of the exercise of the Option. The delivery of certificates representing the shares
of Stock to be purchased pursuant to the exercise of a Stock Option will be contingent upon receipt from the optionee (or a purchaser acting in his or her stead in accordance with the provisions of the Stock Option) by the Company of the full
purchase price for such shares and the fulfillment of any other requirements contained in the Option Award Agreement or applicable provisions of laws. In the event an optionee chooses to pay the purchase price by previously-owned shares of Stock
through the attestation method, the number of shares of Stock transferred to the optionee upon the exercise of the Stock Option shall be net of the number of shares attested to. 







 (b) Annual Limit on Incentive Stock Options. To the extent required for “incentive
stock option” treatment under Section 422 of the Code, the aggregate Fair Market Value (determined as of the time of grant) of the shares of Stock with respect to which Incentive Stock Options granted under the Plan and any other plan of
the Company or its parent and any Subsidiary that become exercisable for the first time by an optionee during any calendar year shall not exceed $100,000 or such other limit as may be in effect from time to time under Section 422 of the Code.
To the extent that any Stock Option exceeds this limit, it shall constitute a Non-Qualified Stock Option. 
 (c) Non-Transferability of
Stock Options. No Stock Option shall be transferable by the optionee otherwise than by will or by the laws of descent and distribution and all Stock Options shall be exercisable, during the optionee’s lifetime, only by the optionee, or by
the optionee’s legal representative or guardian in the event of the optionee’s incapacity. Notwithstanding the foregoing, the Committee, in its sole discretion, may provide in the Award Agreement regarding a given Option that the optionee
may transfer, without consideration for the transfer, his or her Non-Qualified Stock Options to members of his or her immediate family, to trusts for the benefit of such family members, or to partnerships in which such family members are the only
partners, provided that the transferee agrees in writing with the Company to be bound by all of the terms and conditions of the Plan and the applicable Option. 
  

	SECTION 6.	RESTRICTED STOCK AWARDS 

 (a) Nature of Restricted Stock Awards. The Committee
shall determine the restrictions and conditions applicable to each Restricted Stock Award at the time of grant. Conditions may be based on continuing employment (or other service relationship), achievement of pre-established performance goals and
objectives and/or such other criteria as the Committee may determine. The grant of a Restricted Stock Award is contingent on the grantee executing a Restricted Stock Award Agreement. The terms and conditions of each such Award Agreement shall be
determined by the Committee, and such terms and conditions may differ among individual Awards and grantees, all of whom must be eligible persons under Section 4 hereof. 

(b) Rights as a Stockholder. Upon execution of a Restricted Stock Award Agreement and payment of any applicable purchase price, a
grantee of Restricted Stock shall be considered the record owner of and shall be entitled to vote the Shares of Restricted Stock if, and to the extent, such Shares are entitled to voting rights, subject to such conditions contained in the Restricted
Stock Award Agreement. Except as otherwise provided for in any agreement or waiver letter, the grantee shall be entitled to receive all dividends and any other distributions declared on the Shares; provided, however, that the Company
is under no duty to declare any such dividends or to make any such distribution. The Restricted Stock Award Agreement may require or permit the immediate payment, waiver, deferral or investment of dividends paid on the Restricted Stock. Unless the
Committee shall otherwise determine, certificates evidencing the Restricted Stock shall remain in the possession of the Company until such Restricted Stock is vested as provided in subsection (d) below of this Section, and the grantee shall be
required, as a condition of the grant, to deliver to the Company a stock power endorsed in blank and such other instruments of transfer as the Committee may prescribe. 







 (c) Restrictions. Restricted Stock may not be sold, assigned, transferred, pledged or
otherwise encumbered or disposed of except as specifically provided herein or in the Restricted Stock Award Agreement. Except as may otherwise be provided by the Committee either in the Award Agreement or, subject to Section 12 below, in
writing after the Award Agreement is issued, if any, if a grantee’s employment (or other service relationship) with the Company and any Subsidiary terminates, the Company or its assigns shall have the right, as may be specified in the relevant
instrument, to repurchase some or all of the Shares subject to the Award at such purchase price as is set forth in the Restricted Stock Award Agreement. 

(d) Vesting of Restricted Stock. The Committee at the time of grant shall specify the date or dates and/or the attainment of pre-established performance goals, objectives and other conditions on which Restricted Stock shall become vested, subject to such further rights of the Company or its assigns as may be specified in the Restricted
Stock Award Agreement. 
  

	SECTION 7.	UNRESTRICTED STOCK AWARDS 

 (a) Grant or Sale of Unrestricted Stock. The Committee
may, in its sole discretion, grant (or sell at par value or such higher purchase price determined by the Committee) to an eligible person under Section 4 hereof an Unrestricted Stock Award under the Plan. Unrestricted Stock Awards may be
granted in respect of past services or other valid consideration, or in lieu of cash compensation due to such grantee. 
 (b) Elections
to Receive Unrestricted Stock In Lieu of Compensation. Upon the request of an eligible person under Section 4 hereof and with the consent of the Committee, each such grantee may, pursuant to an advance written election delivered to the
Company no later than the date specified by the Committee, receive a portion of any cash compensation otherwise due to such grantee in the form of shares of Unrestricted Stock either currently or on a deferred basis. 

(c) Restrictions on Transfers. The right to receive shares of Unrestricted Stock on a deferred basis may not be sold, assigned,
transferred, pledged or otherwise encumbered, other than by will or the laws of descent and distribution. 
  

	SECTION 8.	RESTRICTED STOCK UNITS 

 (a) Nature of Restricted Stock Units. The Committee shall
determine the restrictions and conditions applicable to each Restricted Stock Unit at the time of grant. Conditions may be based on continuing employment (or other service relationship), achievement of pre-established performance goals and
objectives and/or other such criteria as the Committee may determine. The grant of Restricted Stock Unit(s) is contingent on the grantee executing a Restricted Stock Unit Award Agreement. The terms and conditions of each such Award Agreement shall
be determined by the Committee, shall be consistent with Section 409A, and such terms and conditions may differ among individual Awards and grantees. At the end of the Deferral Period applicable to any Restricted Stock Unit, such Restricted
Stock Unit(s), to the extent vested, shall be settled in the form of cash or shares of Stock, as specified in the Award Agreement. 
 (b)
Election to Receive Restricted Stock Units in Lieu of Compensation. The Committee may, in its sole discretion, permit a grantee to elect to receive a portion of any future 







 
cash compensation otherwise due to such grantee in the form of a Restricted Stock Unit. Any such election shall be made in writing and shall be delivered to the Company no later than the date
specified by the Committee and in accordance with Section 409A and such other rules and procedures established by the Committee. Upon any such election, any such future cash compensation shall be converted to a fixed number of Restricted Stock
Unit(s) based on the Fair Market Value of Stock on the date the compensation would otherwise have been paid to the grantee if such payment had not been deferred through conversion into the Restricted Stock Unit(s). The Committee shall have the sole
right to determine whether and under what circumstances to permit such elections and to impose such limitations and other terms and conditions thereon as the Committee deems appropriate. 

(c) Rights as a Stockholder. A grantee shall have the rights of a stockholder only as to shares of Stock, if any, acquired upon
settlement of a Restricted Stock Unit. A grantee shall not be deemed to have acquired any such shares unless and until a Restricted Stock Unit shall have been settled in Stock pursuant to the terms hereof, the Company shall have issued and delivered
a certificate representing the shares to the grantee, and the grantee’s name shall have been entered in the books of the Company as a stockholder. 

(d) Termination. Except as may otherwise be provided by the Committee either in the Award Agreement or in writing after the Award
Agreement is issued, a grantee’s right in all Restricted Stock Units that have not vested shall automatically terminate upon the grantee’s termination of employment (or cessation of service relationship) with the Company and any Subsidiary
for any reason. 
  

	SECTION 9.	TAX WITHHOLDING 

 (a) Payment by Grantee. Each grantee shall, no later than the
date as of which the value of an Award or of any Stock or other amounts received thereunder first becomes includable in the gross income of the grantee for Federal income tax purposes, pay to the Company, or make arrangements satisfactory to the
Committee regarding payment of, any Federal, state, or local taxes of any kind required by law to be withheld by the Company with respect to such income. The Company and any Subsidiary shall, to the extent permitted by law, have the right to deduct
any such taxes from any payment of any kind otherwise due to the grantee. The Company’s obligation to deliver stock certificates to any grantee is subject to and conditioned on any such tax withholding obligations being satisfied by the
grantee. 
 (b) Payment in Stock. Subject to approval by the Committee, a grantee may elect to have the Company’s minimum
required tax withholding obligation satisfied, in whole or in part, by authorizing the Company to withhold from shares of Stock to be issued pursuant to any Award a number of shares with an aggregate Fair Market Value (as of the date the withholding
is effected) that would satisfy the minimum withholding amount due. 
  

	SECTION 10.	SECTION 409A AWARDS.  

 To the extent that any Award is determined to constitute
“nonqualified deferred compensation” within the meaning of Section 409A (a “409A Award”), the Award shall be subject to such additional rules and requirements as specified by the Committee from time to








 
time in order to comply with Section 409A. In this regard, if any amount under a 409A Award is payable upon a “separation from service” (within the meaning of Section 409A) to
a grantee who is considered a “specified employee” (within the meaning of Section 409A), then no such payment shall be made prior to the date that is the earlier of (i) six months and one day after the grantee’s date of
separation from service, or (ii) the grantee’s death, but only to the extent such delay is necessary to prevent such payment from being subject to interest, penalties and/or additional tax imposed pursuant to Section 409A. 

 

	SECTION 11.	TRANSFER, LEAVE OF ABSENCE, ETC. 

 For purposes of the Plan, the following events shall
not be deemed a termination of employment: 
 (a) a transfer to the employment of the Company from a Subsidiary or from the Company to a
Subsidiary, or from one Subsidiary to another; or 
 (b) an approved leave of absence for military service, sickness or disability, or for
any other purpose approved by the Company, if the employee’s right to re-employment is guaranteed either by a statute or by contract or under the policy pursuant to which the leave of absence was granted or if the Committee otherwise so
provides in writing. 
  

	SECTION 12.	AMENDMENTS AND TERMINATION 

 The Board may, at any time, amend or discontinue the Plan
and the Committee may, at any time, amend or cancel any outstanding Award (or provide substitute Awards at the same or a reduced exercise or purchase price or with no exercise or purchase price in a manner not inconsistent with the terms of the
Plan; provided, that such price, if any, must satisfy the requirements which would apply to the substitute or amended Award if it were then initially granted under the Plan for the purpose of satisfying changes in law or for any other lawful
purpose), but no such action shall adversely affect rights under any outstanding Award without the consent of the holder of the Award. The Committee may exercise its discretion to reduce the exercise price of outstanding Stock Options or effect
repricing through cancellation of outstanding Awards and by granting such holders new Awards in replacement of the cancelled Awards. To the extent determined by the Committee to be required either by the Code to ensure that Incentive Stock Options
granted under the Plan are qualified under Section 422 of the Code or otherwise, Plan amendments shall be subject to approval by the Company stockholders entitled to vote at a meeting of stockholders. Nothing in this Section 12 shall limit
the Board’s or Committee’s authority to take any action permitted pursuant to Section 3(c). 
  

	SECTION 13.	STATUS OF PLAN 

 With respect to the portion of any Award that has not been exercised and
any payments in cash, Stock or other consideration not received by a grantee, a grantee shall have no rights greater than those of a general creditor of the Company unless the Committee shall otherwise expressly so determine in connection with any
Award or Awards. In its sole discretion, the Committee may authorize the creation of trusts or other arrangements to meet the Company’s obligations to deliver Stock or make payments with respect to Awards hereunder; provided, that the
existence of such trusts or other arrangements is consistent with the foregoing sentence. 








	SECTION 14.	GENERAL PROVISIONS 

 (a) No Distribution; Compliance with Legal Requirements. The
Committee may require each person acquiring Stock pursuant to an Award to represent to and agree with the Company in writing that such person is acquiring the shares of Stock without a view to distribution thereof. No shares of Stock shall be issued
pursuant to an Award until all applicable securities law and other legal and stock exchange or similar requirements have been satisfied. The Committee may require the placing of such stop-orders and restrictive legends on certificates for Stock and
Awards as it deems appropriate. 
 (b) Delivery of Stock Certificates. Stock certificates to grantees under the Plan shall be deemed
delivered for all purposes when the Company or a stock transfer agent of the Company shall have mailed such certificates in the United States mail, addressed to the grantee, at the grantee’s last known address on file with the Company. 

(c) Other Compensation Arrangements; No Employment Rights. Nothing contained in the Plan shall prevent the Board from adopting
other or additional compensation arrangements, including trusts, and such arrangements may be either generally applicable or applicable only in specific cases. The adoption of the Plan and the grant of Awards do not confer upon any employee any
right to continued employment or service relationship with the Company or any Subsidiary. 
 (d) Trading Policy Restrictions. Option
exercises and other Awards under the Plan shall be subject to such Company’s insider trading policy-related restrictions, terms and conditions as may be established by the Committee, or in accordance with policies set by the Committee, from
time to time. 
 (e) Loans to Award Recipients. The Company shall have the authority, to the extent permitted by law, to make loans
to recipients of Awards hereunder (including to facilitate the purchase of shares) and shall further have the authority to issue shares for promissory notes hereunder. 

(f) Designation of Beneficiary. Each grantee to whom an Award has been made under the Plan may designate a beneficiary or beneficiaries
to exercise any Award on or after the grantee’s death or receive any payment under any Award payable on or after the grantee’s death. Any such designation shall be on a form provided for that purpose by the Committee and shall not be
effective until received by the Committee. If no beneficiary has been designated by a deceased grantee, or if the designated beneficiaries have predeceased the grantee, the beneficiary shall be the grantee’s estate. 

(g) Legend. Any certificate(s) representing the Issued Shares shall carry substantially the following legend: 

The transferability of this certificate and the shares of stock represented hereby are subject to the restrictions, terms and conditions
(including repurchase and restrictions against transfers) contained in the TA THI Parent, Inc. 2014 Stock Option and Grant Plan and any agreement entered into thereunder by and between the company and the holder of this certificate (a copy of which
is available at the offices of the company for examination). 








	SECTION 15.	EFFECTIVE DATE OF PLAN 

 The Plan shall become effective upon approval of stockholders in
accordance with applicable state law and the Company’s bylaws and articles of incorporation. Subject to such approval by the stockholders and to the requirement that no Stock may be issued hereunder prior to such approval, Stock Options and
other Awards may be granted hereunder on and after adoption of the Plan by the Board. No grants of Stock Options and other Awards may be made hereunder after the tenth anniversary of the Effective Date and no grants of Incentive Stock Options may be
made hereunder after the tenth anniversary of the date the Plan is approved by the Board. 
  

	SECTION 16.	GOVERNING LAW 

 This Plan, all Awards and any controversy arising out of or relating to
this Plan and all Awards shall be governed by and construed in accordance with the General Corporation Law of the State of Delaware as to matters within the scope thereof, and as to all other matters shall be governed by and construed in accordance
with the internal laws of Michigan, without regard to conflict of law principles that would result in the application of any law other than the law of the State of Michigan. 

DATE APPROVED BY THE BOARD OF DIRECTORS: July 28, 2014 

DATE APPROVED BY THE STOCKHOLDERS:             August 7, 2014 







 RESTRICTED STOCK AGREEMENT 

UNDER THE TA THI PARENT, INC. 

2014 STOCK OPTION AND GRANT PLAN 
  

			
	Name of Grantee:	  	                    
                     (the “Grantee”)
		
	No. of Shares:	  	                 Shares of Common Stock
		
	Grant Date:	  	            ,          (the “Grant Date”)
		
	Vesting Commencement Date:	  	            ,          (the “Vesting Commencement Date”)
		
	Per Share Purchase Price:	  	$             (the “Per Share Purchase Price”)

 Pursuant to the TA THI Parent, Inc. 2014 Stock Option and Grant Plan (the “Plan”), TA THI
Parent, Inc., a Delaware corporation (together with its successors, the “Company”), hereby grants, sells and issues to the individual named above, who is an officer, employee, director, consultant or other key person of the Company or any
of the Subsidiaries, the Shares (as defined below) at the Per Share Purchase Price, which represents the Fair Market Value per share on the Grant Date, subject to the terms and conditions set forth herein and in the Plan. The Grantee agrees to the
provisions set forth herein and acknowledges that each such provision is a material condition of the Company’s agreement to issue and sell the Shares to him or her. The Company hereby acknowledges receipt of
$[        ] in full payment for the Shares. All references to share prices and amounts herein shall be equitably adjusted to reflect stock splits, stock dividends, recapitalizations, mergers,
reorganizations and similar changes affecting the capital stock of the Company, and any shares of capital stock of the Company received on or in respect of Shares in connection with any such event (including any shares of capital stock or any right,
option or warrant to receive the same or any security convertible into or exchangeable for any such shares or received upon conversion of any such shares) shall be subject to this Agreement on the same basis and extent at the relevant time as the
Shares in respect of which they were issued, and shall be deemed Shares as if and to the same extent they were issued at the date hereof. 

1. Definitions. For the purposes of this Agreement, the following terms shall have the following respective meanings. All capitalized
terms used herein and not otherwise defined shall have the respective meanings set forth in the Plan. 
 An “Affiliate” of
any Person means a Person that directly or indirectly, through one or more intermediaries, controls, is controlled by or is under common control with the first mentioned Person. A Person shall be deemed to control another Person if such first Person
possesses directly or indirectly the power to direct, or cause the direction of, the management and policies of the second Person, whether through the ownership of voting securities, by contract or otherwise. 







 “Cause” means (i) conduct by the Grantee constituting a material act of
misconduct in connection with the performance of his duties, including, without limitation, misappropriation of funds or property of the Company or any of its Subsidiaries or Affiliates other than the occasional, customary and de minimis use of
Company property for personal purposes; (ii) the commission by the Grantee of any felony or a misdemeanor involving moral turpitude, deceit, dishonesty or fraud, or any conduct by the Grantee that would reasonably be expected to result in
material injury or reputational harm to the Company or any of its Subsidiaries and Affiliates if he were retained in his position; (iii) continued non-performance by the Grantee of his duties to the Company or any of its Subsidiaries or
Affiliates (other than by reason of the Grantee’s physical or mental illness, incapacity or disability) which has continued for more than thirty (30) days following written notice of such non-performance from the Board; (iv) a breach
by the Grantee of any agreement(s) between the Grantee and the Company or any of its Subsidiaries or Affiliates relating to noncompetition, nonsolicitation, nondisclosure and/or assignment of inventions; (v) a material violation by the Grantee
of the Company’s written employment policies in effect from time to time; or (vi) failure to cooperate with a bona fide internal investigation or an investigation by regulatory or law enforcement authorities, after being instructed by the
Company to cooperate, or the willful destruction or failure to preserve documents or other materials known to be relevant to such investigation or the inducement of others to fail to cooperate or to produce documents or other materials in connection
with such investigation. In the event the Grantee is a party to an employment agreement with the Company or any Subsidiary or Affiliate or successor entity that contains a different definition of “cause,” the definition set forth in such
other agreement shall be applicable to the Grantee for purposes of this Agreement and not this definition. 
 “Permitted
Transferees” shall mean any of the following to whom the Grantee may transfer Shares hereunder (as set forth in Section 4): the Grantee’s spouse, children (natural or adopted), stepchildren or a trust for their sole benefit of
which the Grantee is the settlor; provided, however, that any such trust does not require or permit distribution of any Shares during the term of this Agreement unless subject to its terms. Upon the death of the Grantee (or a Permitted
Transferee to whom shares have been transferred hereunder), the term Permitted Transferees shall also include such deceased Grantee’s (or such deceased Permitted Transferee’s) estate, executions, administrations, personal representations,
heirs, legatees and distributees, as the case may be. 
 “Person” shall mean any individual, corporation, partnership
(limited or general), limited liability company, limited liability partnership, association, trust, joint venture, unincorporated organization or any similar entity. 

“Restricted Shares” shall initially mean all of the Shares being purchased by the Grantee on the date hereof. Subject to any
acceleration of vesting, as provided for in Section 3(d), below, the Shares shall become Vested Shares over five (5) years, with 20 percent of the Shares shall become Vested Shares on the first anniversary of the Vesting Commencement Date,
an additional 20 percent of the Shares shall become Vested Shares on the second anniversary of the Vesting Commencement Date and the remaining 60 percent of the Shares shall vest in quarterly installments thereafter, if Grantee remains an employee
on each such date. 







 “Shares” shall mean the number of shares of Common Stock being purchased by the
Grantee on the date hereof and any additional shares of Common Stock or other securities received in respect of the Shares, as a dividend on, or otherwise on account of, the Shares. 

“Termination Event” shall mean (i) the termination of the Grantee’s employment with the Company and any Subsidiary
for any reason whatsoever, regardless of the circumstances thereof, and including without limitation upon death, disability, retirement or discharge or resignation for any reason, whether voluntary or involuntary, and (ii) upon the occurrence
of a Sale Event (as defined in the Plan) where the Grantee’s Restricted Shares are not assumed or continued. For purposes hereof, the Committee’s determination of the reason for termination of the Grantee’s employment shall be
conclusive and binding on the Grantee and the Grantee’s representatives or legatees. Upon a Termination Event, the Grantee shall cease to vest in any Restricted Shares. 

“Vested Shares” shall mean all Shares which are not Restricted Shares. 

2. Purchase and Sale of Shares; Investment Representations. 

(a) Purchase and Sale. On the date hereof, the Company hereby sells to the Grantee, and the Grantee hereby purchases from the Company,
the number of Shares set forth above for the Per Share Purchase Price. 
 (b) Investment Representations. In connection with the
purchase and sale of the Shares contemplated by Section 2(a) above, the Grantee hereby represents and warrants to the Company as follows: 

(i) The Grantee is purchasing the Shares for the Grantee’s own account for investment only, and not for resale or with a view to the
distribution thereof. 
 (ii) The Grantee has had such an opportunity as he or she has deemed adequate to obtain from the Company such
information as is necessary to permit him or her to evaluate the merits and risks of the Grantee’s investment in the Company and has consulted with the Grantee’s own advisers with respect to the Grantee’s investment in the Company.

 (iii) The Grantee has sufficient experience in business, financial and investment matters to be able to evaluate the risks involved in
the purchase of the Shares and to make an informed investment decision with respect to such purchase. 
 (iv) The Grantee can afford a
complete loss of the value of the Shares and is able to bear the economic risk of holding such Shares for an indefinite period. 
 (v) The
Grantee understands that the Shares are not registered under the Act (it being understood that the Shares are being issued and sold in reliance on the exemption provided in Rule 701 thereunder) or any applicable state securities or “blue
sky” laws and may not be sold or otherwise transferred or disposed of in the absence of an effective registration statement under the Act and under any applicable state securities or “blue sky” laws (or exemptions from the
registration requirements thereof). The Grantee further acknowledges that certificates representing the Shares will bear restrictive legends reflecting the foregoing. 







 3. Repurchase Right. 

(a) Right of Repurchase. The Company or its assigns shall have the right (the “Repurchase Right”) upon the occurrence
of any of the events specified in Section 3(b) below (the “Repurchase Event”) to repurchase from the Grantee (or any Permitted Transferee) some or all (as determined by the Company) of the Shares held by the Grantee (or any
Permitted Transferee) at the price per share specified below (the “Repurchase Price”). The Repurchase Right may be exercised by the Company within the later of (i) six months following the date of such Repurchase Event or
(ii) seven months after the Shares became vested (the “Repurchase Period”). The Repurchase Right shall be exercised by the Company by giving the Grantee or any Permitted Transferee written notice on or before the last day of
the Repurchase Period of its intention to exercise the Repurchase Right, and, together with such notice, tendering to the Grantee or any Permitted Transferee an amount equal to the Repurchase Price for the Shares being repurchased. The Company may
assign the Repurchase Right to one or more Persons. Upon such notification, the Grantee and any Permitted Transferees shall promptly surrender to the Company any certificates representing the Shares being repurchased, together with a duly executed
stock power for the transfer of such Shares to the Company or the Company’s assignee or assignees. Upon the Company’s or its assignee’s receipt of the certificates from the Grantee or any Permitted Transferees (or at such later date
as is determined necessary by the Committee to avoid any breach by the Company of any agreement to which it is a party), the Company or its assignee or assignees shall deliver to him, her or them a check for the Repurchase Price of the Shares being
purchased; provided, however, that the Company may pay the Repurchase Price for such shares by offsetting and canceling any indebtedness then owed by the Grantee to the Company. The Repurchase Right with respect to Vested Shares shall
terminate in accordance with Section 10(b). The Repurchase Right with respect to Restricted Shares shall survive and remain in effect following and notwithstanding any public offering by or merger or other transaction involving the Company and
certificates representing such Restricted Shares shall bear legends to such effect. 
 (b) Company’s Right to Exercise Repurchase
Right. The Company shall have the Repurchase Right in the event of a Termination Event. 
 (c) Repurchase Price. The Repurchase
Price for any Issued Shares being repurchased hereunder shall be, subject to adjustment as provided in the Plan (i) in the case of Shares which are Vested Shares as of the date of the Repurchase Event giving rise to the repurchase, the Fair
Market Value of such Vested Shares as of such date as determined by the Board, and (ii) in the case of Restricted Shares, the Per Share Purchase Price. 

(d) Acceleration of Vesting Upon a Sale Event. Upon the occurrence of any Sale Event (as defined in the Plan), all of the then
outstanding Restricted Shares shall immediately vest and become Vested Shares. 
 (e) True-Up Payment. In the event that (i) the
Company terminates the Grantee’s employment without Cause and the Company repurchases the Grantee’s Vested Shares for fair market value (the “Post-Termination Repurchase Price”); (ii) a Sale Event (as defined in the
Plan) occurs within six months following such termination without Cause, and (iii) the Fair Market Value as of the date of the Sale Event exceeds the Post-Termination Repurchase Price, 







 
Grantee shall receive a payment equal to the excess of the Fair Market Value as of the Sale Event over the Post-Termination Repurchase Price. Such payment shall be made on or within 30 days
following such Sale Event. 
 4. Restrictions on Transfer of Shares. None of the Shares now owned or hereafter acquired shall be
sold, assigned, transferred, pledged, hypothecated, given away or in any other manner disposed of or encumbered, whether voluntarily or by operation of law, unless such transfer is in compliance with all applicable securities laws (including,
without limitation, the Act), and such disposition is in accordance with the terms and conditions of this Section 4 and such disposition does not cause the Company to become subject to the reporting requirements of the Securities Exchange Act
of 1934, as amended. In connection with any transfer of Shares, the Company may require the transferor to provide at the Grantee’s own expense an opinion of counsel to the transferor, satisfactory to the Company, that such transfer is in
compliance with all foreign, federal and state securities laws (including, without limitation, the Act). Any attempted disposition of Shares not in accordance with the terms and conditions of this Section 4 shall be null and void, and the
Company shall not reflect on its records any change in record ownership of any Shares as a result of any such disposition, shall otherwise refuse to recognize any such disposition and shall not in any way give effect to any such disposition of any
Shares. Subject to the foregoing general provisions, Shares may be transferred pursuant to the following specific terms and conditions: 

(a) Transfers to Permitted Transferees. The Grantee (but not any transferee thereof) may sell, assign, transfer or give away any or all
of the Shares to Permitted Transferees; provided, however, that such Permitted Transferee(s) shall, as a condition to any such transfer, agree to be subject to the provisions of this Agreement (including, without limitation, the
provisions of Sections 3, 4, 5 and 10(a)) and shall have delivered a written acknowledgment to that effect to the Company. 
 (b)
Transfers Upon Death. Upon the death of the Grantee, all Restricted Shares shall be subject to the Repurchase Right and all Vested Shares shall be and remain subject to Section 4(c), if applicable, and the Grantee’s estate,
executors, administrators, personal representatives, heirs, legatees and distributees shall be obligated to convey such Shares to the Company or its assigns under the terms contemplated hereby. 

(c) Other Transfers; Notice; Right of First Refusal. In the event that the Grantee (or any Permitted Transferee holding Shares subject
to this Section 4(c)) desires to sell or otherwise transfer all or any part of the Vested Shares (but in no event Restricted Shares, which shall not be sold or transferred except as contemplated by Section 3(a), 3(c) or 4(a) or 4(b)), the
Grantee (or Permitted Transferee) first shall give written notice to the Company of the Grantee’s (or Permitted Transferee’s) intention to make such transfer. Such notice shall state the number of Vested Shares which the Grantee (or
Permitted Transferee) proposes to sell (the “Offered Shares”), the price and the terms at which the proposed sale is to be made and the name and address of the proposed transferee. At any time within 30 days after the receipt of
such notice by the Company, the Company or its assigns may elect to purchase all or any portion of the Offered Shares at the price and on the terms offered by the proposed transferee and specified in the notice. The Company or its assigns shall
exercise this right by mailing or delivering written notice to the Grantee (or Permitted Transferee) within the foregoing 30-day period. If the 







 
Company or its assigns elect to exercise its purchase rights under this Section 4(c), the closing for such purchase shall, in any event, take place within 45 days after the receipt by the
Company of the initial notice from the Grantee (or Permitted Transferee). In the event that the Company or its assigns do not elect to exercise such purchase right, the Grantee (or Permitted Transferee) may, within 60 days thereafter, sell the
Offered Shares to the proposed transferee and at the same price and on the same terms as specified in the Grantee’s (or Permitted Transferee’s) notice. Any Shares purchased by such proposed transferee shall be deemed held by a Permitted
Transferee and accordingly shall remain subject to the terms of this Agreement, including without limitation, the provisions of Sections 3, 4, 5 and 10(a) to the same extent as if the Grantee continued to hold them. Any Shares not sold to the
proposed transferee shall remain subject to this Agreement. Notwithstanding the foregoing, the restrictions on Vested Shares under this Section 4(c) shall terminate in accordance with Section 10(b). 

5. Drag Along Right. In the event the holders of a majority of the Company’s equity securities then outstanding (the
“Majority Shareholders”) determine to sell or otherwise dispose of all or substantially all of the assets of the Company or all or 50 percent or more of the capital stock of the Company in each case in a transaction constituting a
change in control of the Company, to any non-Affiliate(s) of the Company or any of the Majority Shareholders, or to cause the Company to merge with or into or consolidate with any non-Affiliate(s) of the
Company or any of the Majority Shareholders (in each case, the “Buyer”) in a bona fide negotiated transaction (a “Sale”), the Grantee, including any of his or her successors as contemplated herein, shall be
obligated to and shall upon the written request of a Majority Shareholders: (a) sell, transfer and deliver, or cause to be sold, transferred and delivered, to the Buyer, his or her Shares on substantially the same terms applicable to the
Majority Shareholders (with appropriate adjustments to reflect the conversion of convertible securities, the redemption of redeemable securities and the exercise of exercisable securities as well as the relative preferences and priorities of
preferred stock); (b) execute and deliver such instruments of conveyance and transfer and take such other action, including voting (in person, by proxy or by action by written consent, as applicable) such Shares in favor of any Sale proposed by
the Majority Shareholders and executing any purchase agreement, merger agreement, indemnity agreement, escrow agreement, consent, waiver, governmental filing, share certificates duly endorsed for transfer (free any clear of impermissible liens,
claims and encumbrances) and any similar or related documents as the Majority Shareholders or the Buyer may reasonably require in order to carry out the terms and provisions of this Section 5; (c) vote in opposition to any and all other
proposals that could delay or impair the ability of the Company to consummate such Sale; (d) agree not to subject any Shares to any arrangement or agreement with respect to the voting of such Shares, unless specifically requested to do so by
the acquirer in connection with a Sale; and (e) refrain from exercising any dissenters’ rights or rights of appraisal under applicable law at any time with respect to such Sale. The obligations under this Section 5 shall terminate in
accordance with Section 10(b). 
 6. Legend. Any certificate(s) representing the Shares shall carry substantially the following
legend: 
 The transferability of this certificate and the shares of stock represented hereby are subject to the
restrictions, terms and conditions (including repurchase and restrictions against transfers) 







 
contained in a certain Restricted Stock Agreement dated              , 201   between the Company and the holder of this
certificate (a copy of which is available at the offices of the Company for examination). 
 The shares represented by this
certificate have not been registered under the Securities Act of 1933 or the securities laws of any state. The shares may not be sold or transferred in the absence of such registration or an exemption from registration. 

7. Escrow Arrangement. 

(a) Escrow. In order to carry out the provisions of Sections 3, 4 and 5 of this Agreement more effectively, the Company shall hold the
Shares in escrow together with separate stock powers executed by the Grantee in blank for transfer, and any Permitted Transferee shall, as an additional condition to any transfer of Shares, execute a like stock power as to such Shares. The Company
shall not dispose of the Shares except as otherwise provided in this Agreement. In the event of any repurchase by the Company (or any of its assigns), the Company is hereby authorized by the Grantee and any Permitted Transferee, as the
Grantee’s and each such Permitted Transferee’s attorney-in-fact, to date and complete the stock powers necessary for the transfer of the Shares being purchased and to transfer such Shares in accordance with the terms hereof. At such time
as any Shares are no longer subject to the Company’s Repurchase Right, and right of first refusal and drag along rights, the Company shall, at the written request of the Grantee, deliver to the Grantee (or the relevant Permitted Transferee) a
certificate representing such Shares with the balance of the Shares (if any) to be held in escrow pursuant to this Section 7. 
 (b)
Remedy. Without limitation of any other provision of this Agreement or other rights, in the event that the Grantee, any Permitted Transferees or any other person or entity is required to sell the Grantee’s Shares pursuant to the
provisions of Section 3, 4 and 5 of this Agreement and in the further event that he or she refuses or for any reason fails to deliver to the designated purchaser of such Shares the certificate or certificates evidencing such Shares together
with a related stock power, such designated purchaser may deposit the applicable purchase price for such Shares with a bank designated by the Company, or with the Company’s independent public accounting firm, as agent or trustee, or in escrow,
for the Grantee, any Permitted Transferees or other person or entity, to be held by such bank or accounting firm for the benefit of and for delivery to him, her, them or it, and/or, in its discretion, pay such purchase price by offsetting any
indebtedness then owed by the Grantee as provided above. Upon any such deposit and/or offset by the designated purchaser of such amount and upon notice to the person or entity who was required to sell the Shares to be sold pursuant to the provisions
of Section 3, 4 and 5, such Shares shall at such time be deemed to have been sold, assigned, transferred and conveyed to such purchaser, the holder thereof shall have no further rights thereto (other than the right to withdraw the payment
thereof held in escrow, if applicable), and the Company shall record such transfer in its stock transfer book or in any appropriate manner. 

8. Withholding Taxes. The Grantee acknowledges and agrees that the Company or any of its Subsidiaries have the right to deduct from
payments of any kind otherwise due to the 







 
Grantee, or from the Shares held pursuant to Section 7 hereof, the minimum federal, state or local taxes of any kind required by law to be withheld with respect to the purchase of the Shares
by the Grantee. In furtherance of the foregoing the Grantee agrees to elect, in accordance with Section 83(b) of the Internal Revenue Code of 1986, as amended, to recognize ordinary income in the year of acquisition of the Shares, and to pay to
the Company all withholding taxes shown as due on his or her Section 83(b) election form, or otherwise ultimately determined to be due with respect to such election, based on the excess, if any, of the Fair Market Value of such Shares as of the
date of the purchase of such Shares by the Grantee over the purchase price for such Shares. The Grantee represents that he has received tax advice from his own personal tax advisor on the consequences of the purchase of the Shares. The Grantee
understands the tax consequences of filing (or not filing) a Section 83(b) election and agrees that any filing of a Section 83(b) election is solely the Grantee’s responsibility. 

9. Assignment. At the discretion of the Board, the Company shall have the right to assign the right to exercise its rights with respect
to the Repurchase or pursuant to Section 4(c) to any Person or Persons, in whole or in part in any particular instance, upon the same terms and conditions applicable to the exercise thereof by the Company, and such assignee or assignees of the
Company shall then take and hold any Shares so acquired subject to such terms as may be specified by the Company in connection with any such assignment. 

10. Miscellaneous Provisions. 

(a) Lockup provision. The Grantee and each Permitted Transferee agrees, if requested by the Company and any underwriter engaged by the
Company, not to sell or otherwise transfer or dispose of any securities of the Company (including, without limitation pursuant to Rule 144 under the Act) held by him or her for (a) 180 days following the effective date of the relevant
registration statement filed under the Act in connection with the Company’s Initial Public Offering, or (b) 90 days following the effective date of the relevant registration statement in connection with any other public offering of Common
Stock, as the Company and such underwriter shall specify reasonably and in good faith. Notwithstanding the foregoing, if: (x) during the last 17 days of the foregoing 180-day period or 90-day period, as applicable, the Company issues an
earnings release or material news or a material event relating to the Company occurs; or (y) prior to the expiration of the 180-day period or 90-day period, as applicable, the Company announces that it will release earnings results during the
16-day period beginning on the last day of the period, then the restrictions described above shall continue to apply until the expiration of any 18-day period beginning on the issuance of the earnings release or the occurrence of the material news
or material event. The Grantee agrees, if requested by the underwriter engaged by the Company, to execute a separate letter reflecting the agreement set forth in this Section 10(a). 

(b) Termination. The Repurchase Right with respect to Vested Shares under Section 3(a), the restrictions on transfer of Vested
Shares under Section 4(c) and the Grantee’s Drag Along obligations under Section 5 shall terminate upon the closing of the Company’s Initial Public Offering or upon consummation of any Sale Event, in either case as a result of
which shares of the Company (or successor entity) of the same class as the Shares are registered under Section 12 of the Securities Exchange Act of 1934 and publicly traded on NASDAQ/NMS or any national security exchange; provided,
however, that all other provisions shall remain in effect following the same until all of the Shares have become Vested Shares. 







 (c) Record Owner; Dividends. The Grantee and any Permitted Transferees, during the
duration of this Agreement, shall be considered the record owners of and shall be entitled to vote the Shares if and to the extent the Shares are entitled to voting rights. The Grantee and any Permitted Transferees shall be entitled to receive all
dividends and any other distributions declared on the Shares; provided, however, that the Company is under no duty to declare any such dividends or to make any such distribution. 

(d) Equitable Relief. The parties hereto agree and declare that legal remedies are inadequate to enforce the provisions of this
Agreement and that equitable relief, including specific performance and injunctive relief, may be used to enforce the provisions of this Agreement. 

(e) Change and Modifications. This Agreement may not be orally changed, modified or terminated, nor shall any oral waiver of any of its
terms be effective. This Agreement may be changed, modified or terminated only by an agreement in writing signed by the Company and the Grantee. 

(f) Governing Law. This Agreement shall be governed by and construed in accordance with the General Corporation Law of the State of
Delaware as to matters within the scope hereof, and as to all other matters shall be governed by and construed in accordance with the internal laws of Michigan, without regard to conflict of law principles that would result in the application of any
law other than the law of the State of Michigan. 
 (g) Headings. The headings are intended only for convenience in finding the
subject matter and do not constitute part of the text of this Agreement and shall not be considered in the interpretation of this Agreement. 

(h) Saving Clause. If any provision(s) of this Agreement shall be determined to be illegal or unenforceable, such determination shall
in no manner affect the legality or enforceability of any other provision hereof. 
 (i) Notices. All notices, requests, consents and
other communications shall be in writing and be deemed given when delivered personally, by telex or facsimile transmission or when received if mailed by first class registered or certified mail, postage prepaid. Notices to the Company or the Grantee
shall be addressed as set forth underneath their signatures below, or to such other address or addresses as may have been furnished by such party in writing to the other. Notices to any holder of the Shares other than the Grantee shall be addressed
to the address furnished by such holder to the Company. 
 (j) Benefit and Binding Effect. This Agreement shall be binding upon and
shall inure to the benefit of the parties hereto, their respective successors, assigns, and legal representatives. Without limitation of the foregoing, upon any stock-for-stock merger in which the Company is not the surviving entity, shares of the
Company’s successor issued in respect of the Shares shall remain subject to vesting and, if such successor does not have any class of equity securities registered pursuant to Sections 12 or 15 of the Securities Exchange Act of 1934,








 
subject to the Repurchase Right in Section 3, the right of first refusal under Section 4(c), the drag-along under Section 5 and the lock-up provision under Section 10(a). The
Company has the right to assign this Agreement, and such assignee shall become entitled to all the rights of the Company hereunder to the extent of such assignment. 

(k) Dispute Resolution. Except as provided below, any dispute arising out of or relating to this Agreement or the breach, termination
or validity hereof shall be finally settled by binding arbitration conducted expeditiously in accordance with the J.A.M.S./Endispute Comprehensive Arbitration Rules and Procedures (the “J.A.M.S. Rules”). The arbitration shall be governed
by the United States Arbitration Act, 9 U.S.C. §§1-16, and judgment upon the award rendered by the arbitrators may be entered by any court having jurisdiction thereof. The place of arbitration shall
be Boston, Massachusetts. 
 The parties covenant and agree that the arbitration shall commence within 60 days of the date on which a
written demand for arbitration is filed by any party hereto. In connection with the arbitration proceeding, the arbitrator shall have the power to order the production of documents by each party and any third-party witnesses. In addition, each party
may take up to three depositions as of right, and the arbitrator may in his or her discretion allow additional depositions upon good cause shown by the moving party. However, the arbitrator shall not have the power to order the answering of
interrogatories or the response to requests for admission. In connection with any arbitration, each party shall provide to the other, no later than seven business days before the date of the arbitration, the identity of all persons that may testify
at the arbitration and a copy of all documents that may be introduced at the arbitration or considered or used by a party’s witness or expert. The arbitrator’s decision and award shall be made and delivered within six months of the
selection of the arbitrator. The arbitrator’s decision shall set forth a reasoned basis for any award of damages or finding of liability. The arbitrator shall not have power to award damages in excess of actual compensatory damages and shall
not multiply actual damages or award punitive damages or any other damages that are specifically excluded under this Agreement, and each party hereby irrevocably waives any claim to such damages. 

The parties covenant and agree that they will participate in the arbitration in good faith. This Section 10(k) applies equally to
requests for temporary, preliminary or permanent injunctive relief, except that in the case of temporary or preliminary injunctive relief any party may proceed in court without prior arbitration for the limited purpose of avoiding immediate and
irreparable harm. 
 Each of the parties hereto (i) hereby irrevocably submits to the jurisdiction of any United States District Court
of competent jurisdiction for the purpose of enforcing the award or decision in any such proceeding, (ii) hereby waives, and agrees not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim
that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution (except as protected by applicable law), that the suit,
action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court, and hereby waives and agrees not to
seek any review by any court of any other jurisdiction which may be called upon to grant an enforcement of the judgment of any such court. Each of the parties hereto hereby consents to service of process by registered mail at the address to which








 
notices are to be given. Each of the parties hereto agrees that its, his or her submission to jurisdiction and its, his or her consent to service of process by mail is made for the express
benefit of the other parties hereto. Final judgment against any party hereto in any such action, suit or proceeding may be enforced in other jurisdictions by suit, action or proceeding on the judgment, or in any other manner provided by or pursuant
to the laws of such other jurisdiction. 
 (l) Counterparts. For the convenience of the parties and to facilitate execution, this
Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which shall constitute one and the same document. 

[SIGNATURE PAGE FOLLOWS] 







 IN WITNESS WHEREOF, the Company and the Grantee have executed this Restricted Stock Agreement as
of the date first above written. 
  

			
	TA THI Parent, Inc.
		
	By:	 	  

	Name:	 	
	Title:	 	


 [Signature Page to Restricted Stock Agreement] 







 IN WITNESS WHEREOF, the Company and the Grantee have executed this Restricted Stock Agreement as
of the date first above written. 
  

			
	GRANTEE:
	
	  

	Name:	 	
		
	Address:	 	
	
	  

	  

	  



  

	
	 SPOUSE’S CONSENT
 I acknowledge that I have
read the foregoing Restricted Stock Agreement and understand the contents thereof.

	
	  









 NON-QUALIFIED STOCK OPTION AGREEMENT 

UNDER THE TA THI PARENT, INC. 

2014 STOCK OPTION AND GRANT PLAN 
  

			
	 Name of Optionee:
	  	                    
                     (the “Optionee”)
		
	 No. of Option Shares:
	  	                 Shares of Common Stock
		
	 Grant Date:
	  	                     (the “Grant Date”)
		
	 Vesting Commencement Date:
	  	             ,          (the “Vesting Commencement Date”)
		
	 Expiration Date:
	  	                     (the “Expiration Date”)
		
	 Option Exercise Price/Share:
	  	$              (the “Option Exercise Price”)

 Pursuant to the TA THI Parent, Inc. 2014 Stock Option and Grant Plan (the “Plan”), TA THI Parent,
Inc., a Delaware corporation (together with all successors thereto, the “Company”), hereby grants to the Optionee, who is an officer, employee, director, consultant or other key person of the Company or any of its Subsidiaries, an
option (the “Stock Option”) to purchase on or prior to the Expiration Date, or such earlier date as is specified herein, all or any part of the number of shares of Common Stock, par value $0.001 per share (“Common Stock”), of the
Company indicated above (the “Option Shares,” and such shares once issued shall be referred to as the “Issued Shares”), at the Option Exercise Price per share, subject to the terms and conditions set forth in this Non-Qualified Stock Option Agreement (this “Agreement”) and in the Plan. This Stock Option is not intended to qualify as an “incentive stock option” as defined in Section 422(b) of the
Internal Revenue Code of 1986, as amended from time to time (the “Code”). To the extent that any portion of the Stock Option does not so qualify, it shall be deemed a non-qualified stock option. 

1. Definitions. For the purposes of this Agreement, the following terms shall have the following respective meanings. All capitalized
terms used herein and not otherwise defined shall have the respective meanings set forth in the Plan. 
 An “Affiliate”
shall mean with respect to a Person, a Person that directly or indirectly, through one or more intermediaries, controls, is controlled by or is under common control with the first mentioned Person. A Person shall be deemed to control another Person
if such first Person possesses directly or indirectly the power to direct, or cause the direction of, the management and policies of the second Person, whether through the ownership of voting securities, by contract or otherwise. 

“Bankruptcy” shall mean (i) the filing of a voluntary petition under any bankruptcy or insolvency law, or a petition for
the appointment of a receiver or the making of an assignment for the benefit of creditors, with respect to the Optionee or any Permitted Transferee, as the case may be, or (ii) the Optionee or any Permitted Transferee, as the case may be, being
subjected involuntarily to such a petition or assignment or to an attachment or other legal or 







 
equitable interest with respect to the Optionee’s or such Permitted Transferee’s assets, which involuntary petition or assignment or attachment is not discharged within 60 days after
its date, and (iii) the Optionee or any Permitted Transferee being subject to a transfer of the Stock Option or the Issued Shares by operation of law (including by divorce, even if not insolvent), except by reason of death. 

“Cause” means (i) conduct by the Optionee constituting a material act of misconduct in connection with the performance
of his duties, including, without limitation, misappropriation of funds or property of the Company or any of its Subsidiaries or Affiliates other than the occasional, customary and de minimis use of Company property for personal purposes;
(ii) the commission by the Optionee of any felony or a misdemeanor involving moral turpitude, deceit, dishonesty or fraud, or any conduct by the Optionee that would reasonably be expected to result in material injury or reputational harm to the
Company or any of its Subsidiaries and Affiliates if he were retained in his position; (iii) continued non-performance by the Optionee of his duties to the Company or any of its Subsidiaries or Affiliates (other than by reason of the
Optionee’s physical or mental illness, incapacity or disability) which has continued for more than thirty (30) days following written notice of such non-performance from the Board; (iv) a breach by the Optionee of any agreement(s)
between the Optionee and the Company or any of its Subsidiaries or Affiliates relating to noncompetition, nonsolicitation, nondisclosure and/or assignment of inventions; (v) a material violation by the Optionee of the Company’s written
employment policies in effect from time to time; or (vi) failure to cooperate with a bona fide internal investigation or an investigation by regulatory or law enforcement authorities, after being instructed by the Company to cooperate, or the
willful destruction or failure to preserve documents or other materials known to be relevant to such investigation or the inducement of others to fail to cooperate or to produce documents or other materials in connection with such investigation. In
the event the Optionee is a party to an employment agreement with the Company or any Subsidiary that contains a different definition of “cause,” the definition set forth in such other agreement shall be applicable to the Optionee for
purposes of this Agreement and not this definition. 
 “Fair Market Value” of the Common Stock on any given date means the
fair market value of the Stock determined in good faith by the Committee based on the reasonable application of a reasonable valuation method not inconsistent with Section 409A of the Code. If the Common Stock is admitted to quotation on a
national securities exchange, the determination shall be made by reference to market quotations. If there are no market quotations for such date, the determination shall be made by reference to the last date preceding such date for which there are
market quotations; provided further, however, that if the date for which Fair Market Value is determined is the first day when trading prices for the Common Stock are reported on a national securities exchange, the Fair Market Value shall be the
“Price to the Public” (or equivalent) set forth on the cover page for the final prospectus relating to the Company’s Initial Public Offering. 

“Permitted Transferees” shall mean any of the following Persons to whom the Optionee may transfer Issued Shares hereunder (as
set forth in Section 8): the Optionee’s spouse, children (natural or adopted), stepchildren or a trust for their sole benefit of which the Optionee is the settlor; provided, however, that any such trust does not require or
permit distribution of any Issued Shares during the term of this Agreement unless subject to its terms. Upon the death of the Optionee (or a Permitted Transferee to whom shares have been transferred 








 
hereunder), the term Permitted Transferees shall also include such deceased Optionee’s (or such deceased Permitted Transferee’s) estate, executors, administrators, personal
representatives, heirs, legatees and distributees, as the case may be. 
 “Person” shall mean any individual, corporation,
partnership (limited or general), limited liability company, limited liability partnership, association, trust, joint venture, unincorporated organization or any similar entity. 

“Service Relationship” shall mean any relationship as an employee, part-time employee, director or other key person
(including consultants) of the Company or any Subsidiary or any successor entity such that, for example, a Service Relationship shall be deemed to continue without interruption in the event the Optionee’s status changes from full-time employee
to part-time employee or consultant. 
 “Subsidiary” means any corporation or other entity (other than the Company) in
which the Company has at least a 50 percent interest, either directly or indirectly. 
 2. Vesting, Exercisability and Termination.

 (a) No portion of this Stock Option may be exercised until such portion shall have vested. 

(b) Except as set forth below, and subject to the determination of the Committee in its sole discretion to accelerate the vesting schedule
hereunder, this Stock Option shall be vested and exercisable with respect to the Option Shares, the Stock Option shall become vested and exercisable over [five (5) years, with 20 percent of the Stock Option vesting and becoming exercisable on
the first anniversary of the Vesting Commencement Date, an additional 20 percent of the Stock Option vesting and becoming exercisable on the second anniversary of the Vesting Commencement Date and the remaining 60 percent of the Stock Option vesting
and becoming exercisable in quarterly installments thereafter, if Optionee remains an employee on each such date.] 
 Notwithstanding
anything herein to the contrary, but without limitation of Section 6, subject to and effective immediately prior to the consummation of a Sale Event (as defined in the Plan), this Stock Option shall be deemed vested and exercisable in full.

 (c) Termination. Except as may otherwise be provided by the Committee, if the Optionee’s Service Relationship is terminated,
the period within which to exercise this Stock Option will be subject to earlier termination as set forth below (and if not exercised within such period, shall thereafter terminate): 

(i) Termination Due to Death or Disability. If the Optionee’s Service Relationship terminates by reason of such Optionee’s
death or disability (as defined in Section 422(c) of the Code), this Stock Option may be exercised, to the extent exercisable on the date of such termination, by the Optionee, the Optionee’s legal representative or legatee for a period of
12 months from the date of death or disability or until the Expiration Date, if earlier. 







 (ii) Other Termination. If the Optionee’s Service Relationship terminates for any
reason other than death or disability (as defined in Section 422(c) of the Code), and unless otherwise determined by the Committee, this Stock Option may be exercised, to the extent exercisable on the date of termination, for a period of 90
days from the date of termination or until the Expiration Date or other termination date, if earlier; provided however, if the Optionee’s Service Relationship is terminated for Cause, this Stock Option shall terminate immediately
upon the date of such termination. 
 For purposes hereof, the Committee’s determination of the reason for termination of the
Optionee’s employment shall be conclusive and binding on the Optionee and his or her representatives or legatees or Permitted Transferees. Any portion of this Stock Option that is not exercisable on the date of termination of the employment
shall terminate immediately and be null and void. 
 3. Exercise of Stock Option. 

(a) The Optionee may exercise this Stock Option only in the following manner: Prior to the Expiration Date, the Optionee may deliver a Stock
Option exercise notice (an “Exercise Notice”) in the form of Appendix A hereto indicating his or her election to purchase some or all of the Option Shares with respect to which this Stock Option is exercisable at the time of
such notice. Such notice shall specify the number of Option Shares to be purchased. Payment of the purchase price may be made by one or more of the methods described below (payment instruments will be received subject to collection): 

(i) In cash, by certified or bank check, by wire transfer of immediately available funds, or other instrument acceptable to the Committee in
U.S. funds payable to the order of the Company in an amount equal to the purchase price of such Option Shares; 
 (ii) By the Optionee
delivering to the Company a promissory note if the Board has expressly authorized the loan of funds to the Optionee for the purpose of enabling or assisting the Optionee to effect the exercise of his or her Stock Option; provided, that at
least so much of the exercise price as represents the par value of the Stock shall be paid other than with a promissory note if otherwise required by state law; or 

(iii) if the Initial Public Offering has occurred, then (A) through the delivery (or attestation to ownership) of shares of Stock that
have been purchased by the Optionee on the open market or that are beneficially owned by the Optionee and are not subject to restrictions under any plan of the Company, provided that, to the extent required to avoid variable accounting
treatment under ASC 718 or other applicable accounting rules, such surrendered shares shall have been owned by the Optionee for at least six months, and in any event with an aggregate Fair Market Value (as of the date of such exercise) equal to the
option purchase price, (B) by the Optionee delivering to the Company a properly executed Exercise Notice together with irrevocable instructions to a broker to promptly deliver to the Company cash or a check payable and acceptable to the Company
to pay the option purchase price, provided that in the event the Optionee chooses to pay the option purchase price as so provided, the Optionee and the broker shall comply with such procedures and enter into such agreements of indemnity and other
agreements as the Committee shall prescribe as a condition of such payment procedure, or (C) a combination of (i), (ii), (iii)(A) and (iii)(B) above. 







 (b) Certificates for the Option Shares so purchased will be issued and delivered to the Optionee
upon compliance to the satisfaction of the Committee with all requirements under applicable laws or regulations in connection with such issuance. Until the Optionee shall have complied with the requirements hereof and of the Plan, the Company shall
be under no obligation to issue the Option Shares subject to this Stock Option, and the determination of the Committee as to such compliance shall be final and binding on the Optionee. The Optionee shall not be deemed to be the holder of, or to have
any of the rights of a holder with respect to, any shares of Common Stock subject to this Stock Option unless and until this Stock Option shall have been exercised pursuant to the terms hereof, the Company shall have issued and delivered the Issued
Shares to the Optionee, and the Optionee’s name shall have been entered as a stockholder of record on the books of the Company. Thereupon, the Optionee shall have full dividend and other ownership rights with respect to such Issued Shares,
subject to the terms of this Agreement. 
 (c) Notwithstanding any other provision hereof or of the Plan, no portion of this Stock Option
shall be exercisable after the Expiration Date. 
 4. Incorporation of Plan. Notwithstanding anything herein to the contrary, this
Stock Option shall be subject to and governed by all the terms and conditions of the Plan. 
 5. Transferability of Stock Option.
This Agreement is personal to the Optionee and is not transferable by the Optionee in any manner other than by will or by the laws of descent and distribution. The Stock Option may be exercised during the Optionee’s lifetime only by the
Optionee (or by the Optionee’s guardian or personal representative in the event of the Optionee’s incapacity). The Optionee may elect to designate a beneficiary by providing written notice of the name of such beneficiary to the Company,
and may revoke or change such designation at any time by filing written notice of revocation or change with the Company; such beneficiary may exercise the Optionee’s Stock Option in the event of the Optionee’s death to the extent provided
herein. If the Optionee does not designate a beneficiary, or if the designated beneficiary predeceases the Optionee, the legal representative of the Optionee may exercise this Stock Option to the extent provided herein in the event of the
Optionee’s death. 
 6. Effect of Certain Transactions. In the case of a Sale Event (as defined in the Plan), this Stock Option
shall terminate upon the effective time of such Sale Event unless provision is made in connection with such transaction, in the sole discretion of the parties thereto, for the continuation or assumption of this Stock Option heretofore granted, or
the substitution of this Stock Option with a new Stock Option of the successor entity or a parent thereof, with such adjustment to the number and kind of shares and the per share exercise prices as such parties shall agree. In the event of such a
termination, the Optionee shall be permitted, for a specified period of time prior to the consummation of the Sale Event as determined by the Committee, to exercise all portions of the Stock Option which are then exercisable. 

7. Withholding Taxes. The Optionee shall, not later than the date as of which the exercise of this Stock Option becomes a taxable event
for federal income tax purposes, pay to the 







 
Company or make arrangements satisfactory to the Committee for payment of any federal, state and local taxes required by law to be withheld on account of such taxable event. Subject to approval
by the Committee, the Optionee may elect to have the minimum tax withholding obligation satisfied, in whole or in part, by authorizing the Company to withhold from shares of Common Stock to be issued or transferring to the Company, a number of
shares of Common Stock with an aggregate Fair Market Value that would satisfy the minimum withholding amount due. The Optionee acknowledges and agrees that the Company or any Subsidiary of the Company has the right to deduct from payments of any
kind otherwise due to the Optionee, or from the Option Shares to be issued in respect of an exercise of this Stock Option, any federal, state or local taxes of any kind required by law to be withheld with respect to the issuance of Option Shares to
the Optionee. 
 8. Restrictions on Transfer of Issued Shares. None of the Issued Shares acquired upon exercise of the Stock Option
shall be sold, assigned, transferred, pledged, hypothecated, given away or in any other manner disposed of or encumbered, whether voluntarily or by operation of law, unless such transfer is in compliance with all applicable securities laws
(including, without limitation, the Act, and such disposition is in accordance with the terms and conditions of Sections 8 and 9 hereof and such disposition does not cause the Company to become subject to the reporting requirements of the Exchange
Act. In connection with any transfer of Issued Shares, the Company may require the transferor to provide at the Optionee’s own expense an opinion of counsel to the transferor, satisfactory to the Company, that such transfer is in compliance
with all foreign, federal and state securities laws (including, without limitation, the Act). Any attempted disposition of Issued Shares not in accordance with the terms and conditions of Sections 8 and 9 hereof shall be null and void, and the
Company shall not reflect on its records any change in record ownership of any Issued Shares as a result of any such disposition, shall otherwise refuse to recognize any such disposition and shall not in any way give effect to any such disposition
of any Issued Shares. Subject to the foregoing general provisions, Issued Shares may be transferred pursuant to the following specific terms and conditions: 

(a) Transfers to Permitted Transferees. The Optionee may sell, assign, transfer or give away any or all of the Issued Shares to
Permitted Transferees; provided, however, that such Permitted Transferee(s) shall, as a condition to any such transfer, agree to be subject to the provisions of this Agreement to the same extent as the Optionee (including, without
limitation, the provisions of Sections 8, 9, 11 and 12) and shall have delivered a written acknowledgment to that effect to the Company. 

(b) Transfers Upon Death. Upon the death of the Optionee, any Issued Shares then held by the Optionee at the time of such death and any
Issued Shares acquired thereafter by the Optionee’s legal representative pursuant to this Agreement shall be subject to the provisions of Sections 8, 9, 10, 11 and 12, if applicable, and the Optionee’s estate, executors, administrators,
personal representatives, heirs, legatees and distributees shall be obligated to convey such Issued Shares to the Company or its assigns under the terms contemplated hereby. 

(c) Company’s Right of First Refusal. In the event that the Optionee (or any Permitted Transferee holding Issued Shares subject to
this Section 8(c)) desires to sell or otherwise transfer all or any part of the Issued Shares, the Optionee (or Permitted Transferee) 







 
first shall give written notice to the Company of the Optionee’s (or Permitted Transferee’s) intention to make such transfer. Such notice shall state the number of Issued Shares which
the Optionee (or Permitted Transferee) proposes to sell (the “Offered Shares”), the price and the terms at which the proposed sale is to be made and the name and address of the proposed transferee. At any time within 30 days after the
receipt of such notice by the Company, the Company or its assigns may elect to purchase all or any portion of the Offered Shares at the price and on the terms offered by the proposed transferee and specified in the notice. The Company or its assigns
shall exercise this right by mailing or delivering written notice to the Optionee (or Permitted Transferee) within the foregoing 30-day period. If the Company or its assigns elect to exercise its purchase rights under this Section 8(c), the
closing for such purchase shall, in any event, take place within 45 days after the receipt by the Company of the initial notice from the Optionee (or Permitted Transferee). In the event that the Company or its assigns do not elect to exercise such
purchase right, the Optionee (or Permitted Transferee) may, within 60 days thereafter, sell the Offered Shares to the proposed transferee and at the same price and on the same terms as specified in the Optionee’s (or Permitted
Transferee’s) notice. Any Shares purchased by such proposed transferee shall be deemed held by a Permitted Transferee and accordingly shall remain subject to the terms of this Agreement, including without limitation, the provisions of Sections
8, 9, 10, 11 and 12 below to the same extent as if the Optionee continued to hold them. Any Shares not sold to the proposed transferee shall remain subject to this Agreement. Notwithstanding the foregoing, the restrictions under this
Section 8(c) shall terminate in accordance with Section 13(a). 
 9. Company’s Right of Repurchase. 

(a) Right of Repurchase. The Company shall have the right (the “Repurchase Right”) upon the occurrence of any of the events
specified in Section 9(b) below (the “Repurchase Event”) to repurchase from the Optionee (or any Permitted Transferee) some or all (as determined by the Company) of the Issued Shares held or subsequently acquired upon exercise of this
Stock Option in accordance with the terms hereof by the Optionee (or any Permitted Transferee) at the price per share specified below (the “Repurchase Price”). The Repurchase Right may be exercised by the Company within the later of
(i) six months following the date of such event or (ii) seven months after the exercise of this Stock Option (the “Repurchase Period”). The Repurchase Right shall be exercised by the Company by giving the Optionee or any
Permitted Transferee written notice on or before the last day of the Repurchase Period of its intention to exercise the Repurchase Right, and, together with such notice, tendering to the Optionee or any Permitted Transferee the Repurchase Price for
the shares being repurchased. The Company may assign the Repurchase Right to one or more Persons. Upon such notification, the Optionee and any Permitted Transferees shall promptly surrender to the Company any certificates representing the Issued
Shares being repurchased, together with a duly executed stock power for the transfer of such Issued Shares to the Company or the Company’s assignee or assignees. Upon the Company’s or its assignee’s receipt of the certificates from
the Optionee or any Permitted Transferees (or at such later date as is determined necessary by the Committee to avoid any breach by the Company of any agreement to which it is a party), the Company or its assignee or assignees shall deliver to him,
her or them a check for the Repurchase Price of the Issued Shares being purchased; provided, however, that the Company may pay the Repurchase Price for such shares by offsetting and canceling any indebtedness then owed by the Optionee
to the Company. The Repurchase Right shall terminate in accordance with Section 13(a). 







 (b) Company’s Right to Exercise Repurchase Right. The Company shall have the
Repurchase Right in the event that any of the following events shall occur: 
 (i) The termination of the Optionee’s Service
Relationship for any reason whatsoever, regardless of the circumstances thereof, and including without limitation upon death, disability, retirement, discharge or resignation for any reason, whether voluntarily or involuntarily; or 

(ii) The Optionee’s or Permitted Transferee’s Bankruptcy. 

(c) Repurchase Price. The Repurchase Price for any Issued Shares being repurchased hereunder shall be, subject to adjustment as
provided in the Plan (i) in the case of a repurchase following a termination of the Optionee’s Service Relationship by the Company or any Subsidiary for Cause or by Optionee at a time where Optionee’s Service Relationship could have
been terminated by the Company for Cause, the lesser of the Per Share Purchase Price and the Fair Market Value of such Issued Shares as of such date or (ii) in the case of termination of the Optionee’s Service Relationship with the Company
or any Subsidiary without Cause, by Optionee at a time where Optionee’s Service Relationship could not have been terminated by the Company for Cause, or upon Optionee’s death or disability, the Fair Market Value of such Issued Shares as of
such date as determined by the Board. 
 (d) Determination of Fair Market Value. The Fair Market Value of the Issued Shares shall be,
for purposes of this Section 9, determined by the Board as of the date the Board elects to exercise its repurchase rights in connection with a Repurchase Event. 

10. Escrow Arrangement. 

(a) Escrow. In order to carry out the provisions of Sections 8, 9 and 11 of this Agreement more effectively, the Company shall hold any
Issued Shares in escrow together with separate stock powers executed by the Optionee in blank for transfer, and any Permitted Transferee shall, as an additional condition to any transfer of Issued Shares, execute a like stock power as to such Issued
Shares. The Company shall not dispose of the Issued Shares except as otherwise provided in this Agreement. In the event of any repurchase by the Company (or any of its assigns), the Company is hereby authorized by the Optionee and any Permitted
Transferee, as the Optionee’s and each such Permitted Transferee’s attorney-in-fact, to date and complete the stock powers necessary for the transfer of the Issued Shares being purchased and to transfer such Issued Shares in accordance
with the terms hereof. At such time as any Issued Shares are no longer subject to the Company’s repurchase, first refusal and drag along rights, the Company shall, at the written request of the Optionee, deliver to the Optionee (or the relevant
Permitted Transferee) a certificate representing such Issued Shares with the balance of the Issued Shares to be held in escrow pursuant to this Section 10. 

(b) Remedy. Without limitation of any other provision of this Agreement or other rights, in the event that the Optionee, any Permitted
Transferees or any other person or entity is required to sell the Optionee’s Issued Shares pursuant to the provisions of Section 8, 9 and 11 of this Agreement and in the further event that he or she refuses or for any reason fails to
deliver to 







 
the Company or its designated purchaser of such Issued Shares the certificate or certificates evidencing such Issued Shares together with a related stock power, the Company or such designated
purchaser may deposit the applicable purchase price for such Issued Shares with a bank designated by the Company, or with the Company’s independent public accounting firm, as agent or trustee, or in escrow, for the Optionee, any Permitted
Transferees or other person or entity, to be held by such bank or accounting firm for the benefit of and for delivery to him, her, them or it, and/or, in its discretion, pay such purchase price by offsetting any indebtedness then owed by the
Optionee as provided above. Upon any such deposit and/or offset by the Company or its designated purchaser of such amount and upon notice to the person or entity who was required to sell the Issued Shares to be sold pursuant to the provisions of
Sections 8, 9 and 11, such Issued Shares shall at such time be deemed to have been sold, assigned, transferred and conveyed to such purchaser, the holder thereof shall have no further rights thereto (other than the right to withdraw the payment
thereof held in escrow, if applicable), and the Company shall record such transfer in its stock transfer book or in any appropriate manner. 

11. Drag Along Right. In the event the holders of a majority of the Company’s equity securities then outstanding (the
“Majority Shareholders”) determine to sell or otherwise dispose of all or substantially all of the assets of the Company or all or 50 percent or more of the capital stock of the Company in each case in a transaction constituting a change
in control of the Company, to any non-Affiliate(s) of the Company or any of the Majority Shareholders, or to cause the Company to merge with or into or consolidate with any non-Affiliate(s) of the Company or
any of the Majority Shareholders (in each case, the “Buyer”) in a bona fide negotiated transaction (a “Sale”), the Optionee, including any Permitted Transferees, shall be obligated to and shall upon the written request of
a Majority Shareholders (subject to Section 6): (a) sell, transfer and deliver, or cause to be sold, transferred and delivered, to the Buyer, his or her Issued Shares (including for this purpose all of such Optionee’s or his or her
Permitted Transferee’s Issued Shares that presently or as a result of any such transaction may be acquired upon the exercise of options (following the payment of the exercise price therefor)) on substantially the same terms applicable to the
Majority Shareholders (with appropriate adjustments to reflect the conversion of convertible securities, the redemption of redeemable securities and the exercise of exercisable securities as well as the relative preferences and priorities of
preferred stock); (b) execute and deliver such instruments of conveyance and transfer and take such other action, including voting (in person, by proxy or by action by written consent, as applicable) such Issued Shares in favor of any Sale
proposed by the Majority Shareholders and executing any purchase agreement, merger agreement, indemnity agreement, escrow agreement, consent, waiver, governmental filing, share certificates duly endorsed for transfer (free any clear of impermissible
liens, claims and encumbrances) and any similar or related documents as the Majority Shareholders or the Buyer may reasonably require in order to carry out the terms and provisions of this Section 11; (c) vote in opposition to any and all
other proposals that could delay or impair the ability of the Company to consummate such Sale; (d) agree not to subject any Shares to any arrangement or agreement with respect to the voting of such Shares, unless specifically requested to do so
by the acquirer in connection with a Sale; and (e) refrain from exercising any dissenters’ rights or rights of appraisal under applicable law at any time with respect to such Sale. The obligations under this Section 11 shall terminate
in accordance with Section 13(a). 







 12. Lockup Provision. The Optionee agrees, if requested by the Company and any underwriter
engaged by the Company, not to sell or otherwise transfer or dispose of any securities of the Company (including, without limitation, pursuant to Rule 144 under the Act) held by him or her for (a) 180 days following the effective date of the
relevant registration statement filed under the Act in connection with the Company’s Initial Public Offering, or (b) 90 days following the effective date of the relevant registration statement in connection with any other public offering
of Stock, as the Company and such underwriter shall specify reasonably and in good faith. Notwithstanding the foregoing, if: (x) during the last 17 days of the foregoing 180-day period or 90-day period, as applicable, the Company issues an
earnings release or material news or a material event relating to the Company occurs; or (y) prior to the expiration of the 180-day period or 90-day period, as applicable, the Company announces that it will release earnings results during the
16-day period beginning on the last day of the period, then the restrictions described above shall continue to apply until the expiration of an 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or
material event. The Optionee agrees, if requested by the underwriter engaged by the Company, to execute a separate letter reflecting the agreement set forth in this Section 12. 

13. Miscellaneous Provisions. 

(a) Termination. The Company’s repurchase rights under Section 9, the restrictions on transfer of Issued Shares under
Section 8(c) and the Drag Along obligations under Section 11 shall terminate upon the closing of the Company’s Initial Public Offering or upon consummation of any Sale Event (as defined in the Plan), in either case as a result of
which shares of the Company (or successor entity) of the same class as the Issued Shares are registered under Section 12 of the Exchange Act and publicly traded on any national securities exchange. 

(b) Equitable Relief. The parties hereto agree and declare that legal remedies may be inadequate to enforce the provisions of this
Agreement and that equitable relief, including specific performance and injunctive relief, may be used to enforce the provisions of this Agreement. 

(c) Adjustments for Changes in Capital Structure. If, as a result of any reorganization, recapitalization, reincorporation,
reclassification, stock dividend, stock split, reverse stock split or other similar change in the Common Stock, the outstanding shares of Common Stock are increased or decreased or are exchanged for a different number or kind of shares of the
Company’s stock, the restrictions contained in this Agreement shall apply with equal force to additional and/or substitute securities, if any, received by the Optionee in exchange for, or by virtue of his or her ownership of, Issued Shares.

 (d) Change and Modifications. This Agreement may not be orally changed, modified or terminated, nor shall any oral waiver of any
of its terms be effective. This Agreement may be changed, modified or terminated only by an agreement in writing signed by the Company and the Optionee. 

(e) Governing Law. This Agreement shall be governed by and construed in accordance with the General Corporation Law of the State of
Delaware as to matters within the scope hereof, and as to all other matters shall be governed by and construed in accordance with the internal laws of Michigan, without regard to conflict of law principles that would result in the application of any
law other than the law of the State of Michigan. 







 (f) Headings. The headings are intended only for convenience in finding the subject matter
and do not constitute part of the text of this Agreement and shall not be considered in the interpretation of this Agreement. 
 (g)
Saving Clause. If any provision(s) of this Agreement shall be determined to be illegal or unenforceable, such determination shall in no manner affect the legality or enforceability of any other provision hereof. 

(h) Notices. All notices, requests, consents and other communications shall be in writing and be deemed given when delivered
personally, by telex or facsimile transmission or when received if mailed by first class registered or certified mail, postage prepaid. Notices to the Company or the Optionee shall be addressed as set forth underneath their signatures below, or to
such other address or addresses as may have been furnished by such party in writing to the other. 
 (i) Benefit and Binding Effect.
This Agreement shall be binding upon and shall inure to the benefit of the parties hereto, their respective successors, permitted assigns, and legal representatives. The Company has the right to assign this Agreement, and such assignee shall become
entitled to all the rights of the Company hereunder to the extent of such assignment. 
 (j) Dispute Resolution. Except as provided
below, any dispute arising out of or relating to this Agreement or the breach, termination or validity hereof shall be finally settled by binding arbitration conducted expeditiously in accordance with the J.A.M.S./Endispute Comprehensive Arbitration
Rules and Procedures (the “J.A.M.S. Rules”). The arbitration shall be governed by the United States Arbitration Act, 9 U.S.C. §§1-16, and judgment upon the award rendered by the arbitrators
may be entered by any court having jurisdiction thereof. The place of arbitration shall be Boston, Massachusetts. 
 The parties covenant
and agree that the arbitration shall commence within 60 days of the date on which a written demand for arbitration is filed by any party hereto. In connection with the arbitration proceeding, the arbitrator shall have the power to order the
production of documents by each party and any third-party witnesses. In addition, each party may take up to three depositions as of right, and the arbitrator may in his or her discretion allow additional depositions upon good cause shown by the
moving party. However, the arbitrator shall not have the power to order the answering of interrogatories or the response to requests for admission. In connection with any arbitration, each party shall provide to the other, no later than seven
business days before the date of the arbitration, the identity of all persons that may testify at the arbitration and a copy of all documents that may be introduced at the arbitration or considered or used by a party’s witness or expert. The
arbitrator’s decision and award shall be made and delivered within six months of the selection of the arbitrator. The arbitrator’s decision shall set forth a reasoned basis for any award of damages or finding of liability. The arbitrator
shall not have power to award damages in excess of actual compensatory damages and shall not multiply actual damages or award punitive damages or any other damages that are specifically excluded under this Agreement, and each party hereby
irrevocably waives any claim to such damages. 







 The parties covenant and agree that they will participate in the arbitration in good faith. This
Section 13(j) applies equally to requests for temporary, preliminary or permanent injunctive relief, except that in the case of temporary or preliminary injunctive relief any party may proceed in court without prior arbitration for the limited
purpose of avoiding immediate and irreparable harm. 
 Each of the parties hereto (i) hereby irrevocably submits to the jurisdiction of
any United States District Court of competent jurisdiction for the purpose of enforcing the award or decision in any such proceeding, (ii) hereby waives, and agrees not to assert, by way of motion, as a defense, or otherwise, in any such suit,
action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution (except as protected by
applicable law), that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court, and
hereby waives and agrees not to seek any review by any court of any other jurisdiction which may be called upon to grant an enforcement of the judgment of any such court. Each of the parties hereto hereby consents to service of process by registered
mail at the address to which notices are to be given. Each of the parties hereto agrees that its, his or her submission to jurisdiction and its, his or her consent to service of process by mail is made for the express benefit of the other parties
hereto. Final judgment against any party hereto in any such action, suit or proceeding may be enforced in other jurisdictions by suit, action or proceeding on the judgment, or in any other manner provided by or pursuant to the laws of such other
jurisdiction. 
 (k) Counterparts. For the convenience of the parties and to facilitate execution, this Agreement may be executed in
two or more counterparts, each of which shall be deemed an original, but all of which shall constitute one and the same document. 

[SIGNATURE PAGE FOLLOWS] 







 The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to
by the undersigned as of the date first above written. 
  

			
	TA THI PARENT, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	
		
	Address:	 	
	
	  

	  

	  



 The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the
undersigned as of the date first above written. 
  

			
	 OPTIONEE:
  

	Name:	 	
		
	Address:	 	
	
	  

	  

	  



 SPOUSE’S CONSENT 
 I
acknowledge that I have read the 
 foregoing Non-Qualified Stock Option Agreement 

and understand the contents thereof. 
  

	
	   










 
			
	DESIGNATED BENEFICIARY:
	
	  

	
	Beneficiary’s Address:
	
	  

	  

	  










 Appendix A 

STOCK OPTION EXERCISE NOTICE 
  

			
	TA THI Parent, Inc.
	Attention:	 	  

	  

	  


 Pursuant to the terms of my stock option agreement dated
                     (the “Agreement”) under the TA THI Parent, Inc. 2014 Stock Option and Grant Plan, I, [Insert Name]
                                         , hereby
[Circle One] partially/fully exercise such option by including herein payment in the amount of $         representing the purchase price for [Fill in number of Option Shares]
                 option shares. I have chosen the following form(s) of payment: 

 

					
	 ̈	    	1.	    	Cash
	 ̈	    	2.	    	Certified or bank check payable to TA THI Parent, Inc.
	 ̈	    	3.	    	Other (as described in the Agreement (please describe))
		    		    	                                     
                                         
                                         
                                         
            .


 In connection with my exercise of the option as set forth above, I hereby represent and warrant to TA
THI Parent, Inc. as follows: 
 (i) I am purchasing the option shares for my own account for investment only, and not for resale or with a
view to the distribution thereof. 
 (ii) I have had such an opportunity as I have deemed adequate to obtain from TA THI Parent, Inc. such
information as is necessary to permit me to evaluate the merits and risks of my investment in TA THI Parent, Inc. and have consulted with my own advisers with respect to my investment in TA THI Parent, Inc. 

(iii) I have sufficient experience in business, financial and investment matters to be able to evaluate the risks involved in the purchase of
the option shares and to make an informed investment decision with respect to such purchase. 
 (iv) I can afford a complete loss of the
value of the option shares and am able to bear the economic risk of holding such option shares for an indefinite period of time. 
 (v) I
understand that the option shares may not be registered under the Securities Act of 1933 (it being understood that the option shares are being issued and sold in reliance on the exemption provided in Rule 701 thereunder) or any applicable state
securities or “blue sky” laws and may not be sold or otherwise transferred or disposed of in the absence of an effective registration statement under the Securities Act of 1933 and under any applicable state securities or “blue
sky” laws (or exemptions from the registration requirement thereof). I further acknowledge that certificates representing option shares will bear restrictive legends reflecting the foregoing. 







 
			
	Sincerely yours,
	
	  

	Name:	 	
		
	Address:	 	
	
	  

	  

	  










 INCENTIVE STOCK OPTION AGREEMENT 

UNDER THE TA THI PARENT, INC. 

2014 STOCK OPTION AND GRANT PLAN 
  

			
	Name of Optionee:	  	                    
                     (the “Optionee”)
		
	No. of Option Shares:	  	                 Shares of Common Stock
		
	Grant Date:	  	                     (the “Grant Date”)
		
	Vesting Commencement Date:	  	             ,                  (the “Vesting Commencement Date”)
		
	Expiration Date:	  	                     (the “Expiration Date”)
		
	Option Exercise Price/Share:	  	$             (the “Option Exercise Price”)

 Pursuant to the TA THI Parent, Inc. 2014 Stock Option and Grant Plan (the “Plan”), TA THI Parent,
Inc., a Delaware corporation (together with all successors thereto, the “Company”), hereby grants to the Optionee, who is an employee of the Company or any of its Subsidiaries, an option (the “Stock Option”) to purchase on or
prior to the Expiration Date, or such earlier date as is specified herein, all or any part of the number of shares of Common Stock, par value $0.001 per share (“Common Stock”), of the Company indicated above (the “Option Shares,”
and such shares once issued shall be referred to as the “Issued Shares”), at the Option Exercise Price per share, subject to the terms and conditions set forth in this Incentive Stock Option Agreement (this “Agreement”) and in
the Plan. This Stock Option is intended to qualify as an “incentive stock option” as defined in Section 422(b) of the Internal Revenue Code of 1986, as amended from time to time (the “Code”). To the extent that any portion
of the Stock Option does not so qualify, it shall be deemed a non-qualified stock option. 
 1.
Definitions. For the purposes of this Agreement, the following terms shall have the following respective meanings. All capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Plan. 

An “Affiliate” shall mean with respect to a Person, a Person that directly or indirectly, through one or more intermediaries,
controls, is controlled by or is under common control with the first mentioned Person. A Person shall be deemed to control another Person if such first Person possesses directly or indirectly the power to direct, or cause the direction of, the
management and policies of the second Person, whether through the ownership of voting securities, by contract or otherwise. 

“Bankruptcy” shall mean (i) the filing of a voluntary petition under any bankruptcy or insolvency law, or a petition for
the appointment of a receiver or the making of an assignment for the benefit of creditors, with respect to the Optionee or any Permitted Transferee, as the case may be, or (ii) the Optionee or any Permitted Transferee, as the case may be, being
subjected involuntarily to such a petition or assignment or to an attachment or other legal or equitable interest with respect to the Optionee’s or such Permitted Transferee’s assets, which








 
involuntary petition or assignment or attachment is not discharged within 60 days after its date, and (iii) the Optionee or any Permitted Transferee being subject to a transfer of the Stock
Option or the Issued Shares by operation of law (including by divorce, even if not insolvent), except by reason of death. 

“Cause” means (i) conduct by the Optionee constituting a material act of misconduct in connection with the performance
of his duties, including, without limitation, misappropriation of funds or property of the Company or any of its Subsidiaries or Affiliates other than the occasional, customary and de minimis use of Company property for personal purposes;
(ii) the commission by the Optionee of any felony or a misdemeanor involving moral turpitude, deceit, dishonesty or fraud, or any conduct by the Optionee that would reasonably be expected to result in material injury or reputational harm to the
Company or any of its Subsidiaries and Affiliates if he were retained in his position; (iii) continued non-performance by the Optionee of his duties to the Company or any of its Subsidiaries or Affiliates (other than by reason of the
Optionee’s physical or mental illness, incapacity or disability) which has continued for more than thirty (30) days following written notice of such non-performance from the Board; (iv) a breach by the Optionee of any agreement(s)
between the Optionee and the Company or any of its Subsidiaries or Affiliates relating to noncompetition, nonsolicitation, nondisclosure and/or assignment of inventions; (v) a material violation by the Optionee of the Company’s written
employment policies in effect from time to time; or (vi) failure to cooperate with a bona fide internal investigation or an investigation by regulatory or law enforcement authorities, after being instructed by the Company to cooperate, or the
willful destruction or failure to preserve documents or other materials known to be relevant to such investigation or the inducement of others to fail to cooperate or to produce documents or other materials in connection with such investigation.In
the event the Optionee is a party to an employment agreement with the Company or any Subsidiary that contains a different definition of “cause,” the definition set forth in such other agreement shall be applicable to the Optionee for
purposes of this Agreement and not this definition. 
 “Fair Market Value” of the Common Stock on any given date means the
fair market value of the Stock determined in good faith by the Committee based on the reasonable application of a reasonable valuation method not inconsistent with Section 409A of the Code. If the Common Stock is admitted to quotation on a
national securities exchange, the determination shall be made by reference to market quotations. If there are no market quotations for such date, the determination shall be made by reference to the last date preceding such date for which there are
market quotations; provided further, however, that if the date for which Fair Market Value is determined is the first day when trading prices for the Common Stock are reported on a national securities exchange, the Fair Market Value shall be the
“Price to the Public” (or equivalent) set forth on the cover page for the final prospectus relating to the Company’s Initial Public Offering. 

“Permitted Transferees” shall mean any of the following Persons to whom the Optionee may transfer Issued Shares hereunder (as
set forth in Section 8): the Optionee’s spouse, children (natural or adopted), stepchildren or a trust for their sole benefit of which the Optionee is the settlor; provided, however, that any such trust does not require or
permit distribution of any Issued Shares during the term of this Agreement unless subject to its terms. Upon the death of the Optionee (or a Permitted Transferee to whom shares have been transferred hereunder), the term Permitted Transferees shall
also include such deceased Optionee’s (or such deceased Permitted Transferee’s) estate, executors, administrators, personal representatives, heirs, legatees and distributees, as the case may be. 







 “Person” shall mean any individual, corporation, partnership (limited or
general), limited liability company, limited liability partnership, association, trust, joint venture, unincorporated organization or any similar entity. 

“Service Relationship” shall mean any relationship as an employee, part-time employee, director or other key person
(including consultants) of the Company or any Subsidiary or any successor entity such that, for example, a Service Relationship shall be deemed to continue without interruption in the event the Optionee’s status changes from full-time employee
to part-time employee or consultant. 
 “Subsidiary” means any corporation or other entity (other than the Company) in
which the Company has at least a 50 percent interest, either directly or indirectly. 
 2. Vesting, Exercisability and Termination.

 (a) No portion of this Stock Option may be exercised until such portion shall have vested. 

(b) Except as set forth below, and subject to the determination of the Committee in its sole discretion to accelerate the vesting schedule
hereunder, this Stock Option shall be vested and exercisable with respect to the Option Shares, the Stock Option shall become vested and exercisable over [five (5) years, with 20 percent of the Stock Option vesting and becoming exercisable on
the first anniversary of the Vesting Commencement Date, an additional 20 percent of the Stock Option vesting and becoming exercisable on the second anniversary of the Vesting Commencement Date and the remaining 60 percent of the Stock Option vesting
and becoming exercisable in quarterly installments thereafter, if Optionee remains an employee on each such date.] 
 Notwithstanding
anything herein to the contrary, but without limitation of Section 6, subject to and effective immediately prior to the consummation of a Sale Event (as defined in the Plan), this Stock Option shall be deemed vested and exercisable in full.

 (c) Termination. Except as may otherwise be provided by the Committee, if the Optionee’s Service Relationship is terminated,
the period within which to exercise this Stock Option will be subject to earlier termination as set forth below (and if not exercised within such period, shall thereafter terminate): 

(i) Termination Due to Death or Disability. If the Optionee’s Service Relationship terminates by reason of such Optionee’s
death or disability (as defined in Section 422(c) of the Code), this Stock Option may be exercised, to the extent exercisable on the date of such termination, by the Optionee, the Optionee’s legal representative or legatee for a period of
12 months from the date of death or disability or until the Expiration Date, if earlier. 
 (ii) Other Termination. If the
Optionee’s Service Relationship terminates for any reason other than death or disability (as defined in Section 422(c) of the Code), and unless 







 
otherwise determined by the Committee, this Stock Option may be exercised, to the extent exercisable on the date of termination, for a period of 90 days from the date of termination or until the
Expiration Date or other termination date, if earlier; provided however, if the Optionee’s Service Relationship is terminated for Cause, this Stock Option shall terminate immediately upon the date of such termination. 

For purposes hereof, the Committee’s determination of the reason for termination of the Optionee’s employment shall be conclusive
and binding on the Optionee and his or her representatives or legatees or Permitted Transferees. Any portion of this Stock Option that is not exercisable on the date of termination of the employment shall terminate immediately and be null and void.

 (d) It is understood and intended that this Stock Option is intended to qualify as an “incentive stock option” as defined in
Section 422 of the Code to the extent permitted under applicable law. Accordingly, the Optionee understands that in order to obtain the benefits of an incentive stock option under Section 422 of the Code, no sale or other disposition may
be made of Issued Shares for which incentive stock option treatment is desired within the one-year period beginning on the day after the day of the transfer of such Issued Shares to him or her, nor within the two-year period beginning on the day after the grant of this Stock Option and further that this Stock Option must be exercised within three months after termination of employment as an employee (or 12 months in the
case of death or disability) to qualify as an incentive stock option. If the Optionee disposes (whether by sale, gift, transfer or otherwise) of any such Issued Shares within either of these periods, he or she will notify the Company within 30 days
after such disposition. The Optionee also agrees to provide the Company with any information concerning any such dispositions required by the Company for tax purposes. Further, to the extent Option Shares and any other incentive stock options of the
Optionee having an aggregate Fair Market Value in excess of $100,000 (determined as of the Grant Date) vest in any year, such options will not qualify as incentive stock options. 

3. Exercise of Stock Option. 

(a) The Optionee may exercise this Stock Option only in the following manner: Prior to the Expiration Date, the Optionee may deliver a Stock
Option exercise notice (an “Exercise Notice”) in the form of Appendix A hereto indicating his or her election to purchase some or all of the Option Shares with respect to which this Stock Option is exercisable at the time of
such notice. Such notice shall specify the number of Option Shares to be purchased. Payment of the purchase price may be made by one or more of the methods described below (payment instruments will be received subject to collection): 

(i) In cash, by certified or bank check, by wire transfer of immediately available funds, or other instrument acceptable to the Committee in
U.S. funds payable to the order of the Company in an amount equal to the purchase price of such Option Shares; 
 (ii) By the Optionee
delivering to the Company a promissory note if the Board has expressly authorized the loan of funds to the Optionee for the purpose of enabling or assisting the Optionee to effect the exercise of his or her Stock Option; provided, that at
least so much of the exercise price as represents the par value of the Stock shall be paid other than with a promissory note if otherwise required by state law; or 







 (iii) if the Initial Public Offering has occurred, then (A) through the delivery (or
attestation to ownership) of shares of Stock that have been purchased by the Optionee on the open market or that are beneficially owned by the Optionee and are not subject to restrictions under any plan of the Company, provided that, to the
extent required to avoid variable accounting treatment under ASC 718 or other applicable accounting rules, such surrendered shares shall have been owned by the Optionee for at least six months, and in any event with an aggregate Fair Market Value
(as of the date of such exercise) equal to the option purchase price, (B) by the Optionee delivering to the Company a properly executed Exercise Notice together with irrevocable instructions to a broker to promptly deliver to the Company cash
or a check payable and acceptable to the Company to pay the option purchase price, provided that in the event the Optionee chooses to pay the option purchase price as so provided, the Optionee and the broker shall comply with such procedures and
enter into such agreements of indemnity and other agreements as the Committee shall prescribe as a condition of such payment procedure, or (C) a combination of (i), (ii), (iii)(A) and (iii)(B) above. 

(b) Certificates for the Option Shares so purchased will be issued and delivered to the Optionee upon compliance to the satisfaction of the
Committee with all requirements under applicable laws or regulations in connection with such issuance. Until the Optionee shall have complied with the requirements hereof and of the Plan, the Company shall be under no obligation to issue the Option
Shares subject to this Stock Option, and the determination of the Committee as to such compliance shall be final and binding on the Optionee. The Optionee shall not be deemed to be the holder of, or to have any of the rights of a holder with respect
to, any shares of Common Stock subject to this Stock Option unless and until this Stock Option shall have been exercised pursuant to the terms hereof, the Company shall have issued and delivered the Issued Shares to the Optionee, and the
Optionee’s name shall have been entered as a stockholder of record on the books of the Company. Thereupon, the Optionee shall have full dividend and other ownership rights with respect to such Issued Shares, subject to the terms of this
Agreement. 
 (c) Notwithstanding any other provision hereof or of the Plan, no portion of this Stock Option shall be exercisable after the
Expiration Date. 
 4. Incorporation of Plan. Notwithstanding anything herein to the contrary, this Stock Option shall be subject to
and governed by all the terms and conditions of the Plan. 
 5. Transferability of Stock Option. This Agreement is personal to the
Optionee and is not transferable by the Optionee in any manner other than by will or by the laws of descent and distribution. The Stock Option may be exercised during the Optionee’s lifetime only by the Optionee (or by the Optionee’s
guardian or personal representative in the event of the Optionee’s incapacity). The Optionee may elect to designate a beneficiary by providing written notice of the name of such beneficiary to the Company, and may revoke or change such
designation at any time by filing written notice of revocation or change with the Company; such beneficiary may exercise the Optionee’s Stock Option in the event of the Optionee’s death to the extent provided herein. If the Optionee does
not designate a beneficiary, or if the designated beneficiary predeceases the Optionee, the legal representative of the Optionee may exercise this Stock Option to the extent provided herein in the event of the Optionee’s death. 







 6. Effect of Certain Transactions. In the case of a Sale Event (as defined in the Plan),
this Stock Option shall terminate upon the effective time of such Sale Event unless provision is made in connection with such transaction, in the sole discretion of the parties thereto, for the continuation or assumption of this Stock Option
heretofore granted, or the substitution of this Stock Option with a new Stock Option of the successor entity or a parent thereof, with such adjustment to the number and kind of shares and the per share exercise prices as such parties shall agree. In
the event of such a termination, the Optionee shall be permitted, for a specified period of time prior to the consummation of the Sale Event as determined by the Committee, to exercise all portions of the Stock Option which are then exercisable.

 7. Withholding Taxes. The Optionee shall, not later than the date as of which the exercise of this Stock Option becomes a taxable
event for federal income tax purposes, pay to the Company or make arrangements satisfactory to the Committee for payment of any federal, state and local taxes required by law to be withheld on account of such taxable event. Subject to approval by
the Committee, the Optionee may elect to have the minimum tax withholding obligation satisfied, in whole or in part, by authorizing the Company to withhold from shares of Common Stock to be issued or transferring to the Company, a number of shares
of Common Stock with an aggregate Fair Market Value that would satisfy the minimum withholding amount due. The Optionee acknowledges and agrees that the Company or any Subsidiary of the Company has the right to deduct from payments of any kind
otherwise due to the Optionee, or from the Option Shares to be issued in respect of an exercise of this Stock Option, any federal, state or local taxes of any kind required by law to be withheld with respect to the issuance of Option Shares to the
Optionee. 
 8. Restrictions on Transfer of Issued Shares. None of the Issued Shares acquired upon exercise of the Stock Option shall
be sold, assigned, transferred, pledged, hypothecated, given away or in any other manner disposed of or encumbered, whether voluntarily or by operation of law, unless such transfer is in compliance with all applicable securities laws (including,
without limitation, the Act, and such disposition is in accordance with the terms and conditions of Sections 8 and 9 hereof and such disposition does not cause the Company to become subject to the reporting requirements of the Exchange Act. In
connection with any transfer of Issued Shares, the Company may require the transferor to provide at the Optionee’s own expense an opinion of counsel to the transferor, satisfactory to the Company, that such transfer is in compliance with all
foreign, federal and state securities laws (including, without limitation, the Act). Any attempted disposition of Issued Shares not in accordance with the terms and conditions of Sections 8 and 9 hereof shall be null and void, and the Company shall
not reflect on its records any change in record ownership of any Issued Shares as a result of any such disposition, shall otherwise refuse to recognize any such disposition and shall not in any way give effect to any such disposition of any Issued
Shares. Subject to the foregoing general provisions, Issued Shares may be transferred pursuant to the following specific terms and conditions: 

(a) Transfers to Permitted Transferees. The Optionee may sell, assign, transfer or give away any or all of the Issued Shares to
Permitted Transferees; provided, however, that such 







 
Permitted Transferee(s) shall, as a condition to any such transfer, agree to be subject to the provisions of this Agreement to the same extent as the Optionee (including, without limitation, the
provisions of Sections 8, 9, 11 and 12) and shall have delivered a written acknowledgment to that effect to the Company. 
 (b) Transfers
Upon Death. Upon the death of the Optionee, any Issued Shares then held by the Optionee at the time of such death and any Issued Shares acquired thereafter by the Optionee’s legal representative pursuant to this Agreement shall be subject
to the provisions of Sections 8, 9, 10, 11 and 12, if applicable, and the Optionee’s estate, executors, administrators, personal representatives, heirs, legatees and distributees shall be obligated to convey such Issued Shares to the Company or
its assigns under the terms contemplated hereby. 
 (c) Company’s Right of First Refusal. In the event that the Optionee (or any
Permitted Transferee holding Issued Shares subject to this Section 8(c)) desires to sell or otherwise transfer all or any part of the Issued Shares, the Optionee (or Permitted Transferee) first shall give written notice to the Company of the
Optionee’s (or Permitted Transferee’s) intention to make such transfer. Such notice shall state the number of Issued Shares which the Optionee (or Permitted Transferee) proposes to sell (the “Offered Shares”), the price and the
terms at which the proposed sale is to be made and the name and address of the proposed transferee. At any time within 30 days after the receipt of such notice by the Company, the Company or its assigns may elect to purchase all or any portion of
the Offered Shares at the price and on the terms offered by the proposed transferee and specified in the notice. The Company or its assigns shall exercise this right by mailing or delivering written notice to the Optionee (or Permitted Transferee)
within the foregoing 30-day period. If the Company or its assigns elect to exercise its purchase rights under this Section 8(c), the closing for such purchase shall, in any event, take place within 45 days after the receipt by the Company of
the initial notice from the Optionee (or Permitted Transferee). In the event that the Company or its assigns do not elect to exercise such purchase right, the Optionee (or Permitted Transferee) may, within 60 days thereafter, sell the Offered Shares
to the proposed transferee and at the same price and on the same terms as specified in the Optionee’s (or Permitted Transferee’s) notice. Any Shares purchased by such proposed transferee shall be deemed held by a Permitted Transferee and
accordingly shall remain subject to the terms of this Agreement, including without limitation, the provisions of Sections 8, 9, 10, 11 and 12 below to the same extent as if the Optionee continued to hold them. Any Shares not sold to the proposed
transferee shall remain subject to this Agreement. Notwithstanding the foregoing, the restrictions under this Section 8(c) shall terminate in accordance with Section 13(a). 

9. Company’s Right of Repurchase. 

(a) Right of Repurchase. The Company shall have the right (the “Repurchase Right”) upon the occurrence of any of the events
specified in Section 9(b) below (the “Repurchase Event”) to repurchase from the Optionee (or any Permitted Transferee) some or all (as determined by the Company) of the Issued Shares held or subsequently acquired upon exercise of this
Stock Option in accordance with the terms hereof by the Optionee (or any Permitted Transferee) at the price per share specified below (the “Repurchase Price”). The Repurchase Right may be exercised by the Company within the later of
(i) six months following the date of such event or (ii) seven months after the exercise of this Stock Option (the “Repurchase Period”). 







 
The Repurchase Right shall be exercised by the Company by giving the Optionee or any Permitted Transferee written notice on or before the last day of the Repurchase Period of its intention to
exercise the Repurchase Right, and, together with such notice, tendering to the Optionee or any Permitted Transferee the Repurchase Price for the shares being repurchased. The Company may assign the Repurchase Right to one or more Persons. Upon such
notification, the Optionee and any Permitted Transferees shall promptly surrender to the Company any certificates representing the Issued Shares being repurchased, together with a duly executed stock power for the transfer of such Issued Shares to
the Company or the Company’s assignee or assignees. Upon the Company’s or its assignee’s receipt of the certificates from the Optionee or any Permitted Transferees (or at such later date as is determined necessary by the Committee to
avoid any breach by the Company of any agreement to which it is a party), the Company or its assignee or assignees shall deliver to him, her or them a check for the Repurchase Price of the Issued Shares being purchased; provided,
however, that the Company may pay the Repurchase Price for such shares by offsetting and canceling any indebtedness then owed by the Optionee to the Company. The Repurchase Right shall terminate in accordance with Section 13(a). 

(b) Company’s Right to Exercise Repurchase Right. The Company shall have the Repurchase Right in the event that any of the
following events shall occur: 
 (i) The termination of the Optionee’s Service Relationship for any reason whatsoever, regardless of
the circumstances thereof, and including without limitation upon death, disability, retirement, discharge or resignation for any reason, whether voluntarily or involuntarily; or 

(ii) The Optionee’s or Permitted Transferee’s Bankruptcy. 

(c) Repurchase Price. The Repurchase Price for any Issued Shares being repurchased hereunder shall be, subject to adjustment as
provided in the Plan (i) in the case of a repurchase following a termination of the Optionee’s Service Relationship by the Company or any Subsidiary for Cause or by Optionee at a time where Optionee’s Service Relationship could have
been terminated by the Company for Cause, the lesser of the Per Share Purchase Price and the Fair Market Value of such Issued Shares as of such date or (ii) in the case of termination of the Optionee’s Service Relationship with the Company
or any Subsidiary without Cause, by Optionee at a time where Optionee’s Service Relationship could not have been terminated by the Company for Cause, or upon Optionee’s death or disability, the Fair Market Value of such Issued Shares as of
such date as determined by the Board. 
 (d) Determination of Fair Market Value. The Fair Market Value of the Issued Shares shall be,
for purposes of this Section 9, determined by the Board as of the date the Board elects to exercise its repurchase rights in connection with a Repurchase Event. 

10. Escrow Arrangement. 

(a) Escrow. In order to carry out the provisions of Sections 8, 9 and 11 of this Agreement more effectively, the Company shall hold any
Issued Shares in escrow together with separate stock powers executed by the Optionee in blank for transfer, and any Permitted Transferee shall, as an additional condition to any transfer of Issued Shares, execute a like stock








 
power as to such Issued Shares. The Company shall not dispose of the Issued Shares except as otherwise provided in this Agreement. In the event of any repurchase by the Company (or any of its
assigns), the Company is hereby authorized by the Optionee and any Permitted Transferee, as the Optionee’s and each such Permitted Transferee’s attorney-in-fact, to date and complete the stock powers necessary for the transfer of the
Issued Shares being purchased and to transfer such Issued Shares in accordance with the terms hereof. At such time as any Issued Shares are no longer subject to the Company’s repurchase, first refusal and drag along rights, the Company shall,
at the written request of the Optionee, deliver to the Optionee (or the relevant Permitted Transferee) a certificate representing such Issued Shares with the balance of the Issued Shares to be held in escrow pursuant to this Section 10. 

(b) Remedy. Without limitation of any other provision of this Agreement or other rights, in the event that the Optionee, any Permitted
Transferees or any other person or entity is required to sell the Optionee’s Issued Shares pursuant to the provisions of Section 8, 9 and 11 of this Agreement and in the further event that he or she refuses or for any reason fails to
deliver to the Company or its designated purchaser of such Issued Shares the certificate or certificates evidencing such Issued Shares together with a related stock power, the Company or such designated purchaser may deposit the applicable purchase
price for such Issued Shares with a bank designated by the Company, or with the Company’s independent public accounting firm, as agent or trustee, or in escrow, for the Optionee, any Permitted Transferees or other person or entity, to be held
by such bank or accounting firm for the benefit of and for delivery to him, her, them or it, and/or, in its discretion, pay such purchase price by offsetting any indebtedness then owed by the Optionee as provided above. Upon any such deposit and/or
offset by the Company or its designated purchaser of such amount and upon notice to the person or entity who was required to sell the Issued Shares to be sold pursuant to the provisions of Sections 8, 9 and 11, such Issued Shares shall at such time
be deemed to have been sold, assigned, transferred and conveyed to such purchaser, the holder thereof shall have no further rights thereto (other than the right to withdraw the payment thereof held in escrow, if applicable), and the Company shall
record such transfer in its stock transfer book or in any appropriate manner. 
 11. Drag Along Right. In the event the holders of a
majority of the Company’s equity securities then outstanding (the “Majority Shareholders”) determine to sell or otherwise dispose of all or substantially all of the assets of the Company or all or 50 percent or more of the capital
stock of the Company in each case in a transaction constituting a change in control of the Company, to any non-Affiliate(s) of the Company or any of the Majority Shareholders, or to cause the Company to merge
with or into or consolidate with any non-Affiliate(s) of the Company or any of the Majority Shareholders (in each case, the “Buyer”) in a bona fide negotiated transaction (a “Sale”), the Optionee, including any Permitted
Transferees, shall be obligated to and shall upon the written request of a Majority Shareholders (subject to Section 6): (a) sell, transfer and deliver, or cause to be sold, transferred and delivered, to the Buyer, his or her Issued Shares
(including for this purpose all of such Optionee’s or his or her Permitted Transferee’s Issued Shares that presently or as a result of any such transaction may be acquired upon the exercise of options (following the payment of the exercise
price therefor)) on substantially the same terms applicable to the Majority Shareholders (with appropriate adjustments to reflect the conversion of convertible securities, the redemption of redeemable securities and the exercise of exercisable
securities as well as the relative preferences and priorities of preferred stock); (b) execute and deliver such instruments of conveyance and 







 
transfer and take such other action, including voting (in person, by proxy or by action by written consent, as applicable) such Issued Shares in favor of any Sale proposed by the Majority
Shareholders and executing any purchase agreement, merger agreement, indemnity agreement, escrow agreement, consent, waiver, governmental filing, share certificates duly endorsed for transfer (free any clear of impermissible liens, claims and
encumbrances) and any similar or related documents as the Majority Shareholders or the Buyer may reasonably require in order to carry out the terms and provisions of this Section 11; (c) vote in opposition to any and all other proposals
that could delay or impair the ability of the Company to consummate such Sale; (d) agree not to subject any Shares to any arrangement or agreement with respect to the voting of such Shares, unless specifically requested to do so by the acquirer
in connection with a Sale; and (e) refrain from exercising any dissenters’ rights or rights of appraisal under applicable law at any time with respect to such Sale. The obligations under this Section 11 shall terminate in accordance
with Section 13(a). 
 12. Lockup Provision. The Optionee agrees, if requested by the Company and any underwriter engaged by the
Company, not to sell or otherwise transfer or dispose of any securities of the Company (including, without limitation, pursuant to Rule 144 under the Act) held by him or her for (a) 180 days following the effective date of the relevant
registration statement filed under the Act in connection with the Company’s Initial Public Offering, or (b) 90 days following the effective date of the relevant registration statement in connection with any other public offering of Stock,
as the Company and such underwriter shall specify reasonably and in good faith. Notwithstanding the foregoing, if: (x) during the last 17 days of the foregoing 180-day period or 90-day period, as applicable, the Company issues an earnings
release or material news or a material event relating to the Company occurs; or (y) prior to the expiration of the 180-day period or 90-day period, as applicable, the Company announces that it will release earnings results during the 16-day
period beginning on the last day of the period, then the restrictions described above shall continue to apply until the expiration of an 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or
material event. The Optionee agrees, if requested by the underwriter engaged by the Company, to execute a separate letter reflecting the agreement set forth in this Section 12. 

13. Miscellaneous Provisions. 

(a) Termination. The Company’s repurchase rights under Section 9, the restrictions on transfer of Issued Shares under
Section 8(c) and the Drag Along obligations under Section 11 shall terminate upon the closing of the Company’s Initial Public Offering or upon consummation of any Sale Event (as defined in the Plan), in either case as a result of
which shares of the Company (or successor entity) of the same class as the Issued Shares are registered under Section 12 of the Exchange Act and publicly traded on any national securities exchange. 

(b) Equitable Relief. The parties hereto agree and declare that legal remedies may be inadequate to enforce the provisions of this
Agreement and that equitable relief, including specific performance and injunctive relief, may be used to enforce the provisions of this Agreement. 

(c) Adjustments for Changes in Capital Structure. If, as a result of any reorganization, recapitalization, reincorporation,
reclassification, stock dividend, stock split, 







 
reverse stock split or other similar change in the Common Stock, the outstanding shares of Common Stock are increased or decreased or are exchanged for a different number or kind of shares of the
Company’s stock, the restrictions contained in this Agreement shall apply with equal force to additional and/or substitute securities, if any, received by the Optionee in exchange for, or by virtue of his or her ownership of, Issued Shares.

 (d) Change and Modifications. This Agreement may not be orally changed, modified or terminated, nor shall any oral waiver of any
of its terms be effective. This Agreement may be changed, modified or terminated only by an agreement in writing signed by the Company and the Optionee. 

(e) Governing Law. This Agreement shall be governed by and construed in accordance with the General Corporation Law of the State of
Delaware as to matters within the scope hereof, and as to all other matters shall be governed by and construed in accordance with the internal laws of Michigan, without regard to conflict of law principles that would result in the application of any
law other than the law of the State of Michigan. 
 (f) Headings. The headings are intended only for convenience in finding the
subject matter and do not constitute part of the text of this Agreement and shall not be considered in the interpretation of this Agreement. 

(g) Saving Clause. If any provision(s) of this Agreement shall be determined to be illegal or unenforceable, such determination shall
in no manner affect the legality or enforceability of any other provision hereof. 
 (h) Notices. All notices, requests, consents and
other communications shall be in writing and be deemed given when delivered personally, by telex or facsimile transmission or when received if mailed by first class registered or certified mail, postage prepaid. Notices to the Company or the
Optionee shall be addressed as set forth underneath their signatures below, or to such other address or addresses as may have been furnished by such party in writing to the other. 

(i) Benefit and Binding Effect. This Agreement shall be binding upon and shall inure to the benefit of the parties hereto, their
respective successors, permitted assigns, and legal representatives. The Company has the right to assign this Agreement, and such assignee shall become entitled to all the rights of the Company hereunder to the extent of such assignment. 

(j) Dispute Resolution. Except as provided below, any dispute arising out of or relating to this Agreement or the breach, termination
or validity hereof shall be finally settled by binding arbitration conducted expeditiously in accordance with the J.A.M.S./Endispute Comprehensive Arbitration Rules and Procedures (the “J.A.M.S. Rules”). The arbitration shall be governed
by the United States Arbitration Act, 9 U.S.C. §§1-16, and judgment upon the award rendered by the arbitrators may be entered by any court having jurisdiction thereof. The place of arbitration shall
be Boston, Massachusetts. 
 The parties covenant and agree that the arbitration shall commence within 60 days of the date on which a
written demand for arbitration is filed by any party hereto. In connection with the arbitration proceeding, the arbitrator shall have the power to order the production of documents by each party and any third-party witnesses. In addition, each party
may take up to 







 
three depositions as of right, and the arbitrator may in his or her discretion allow additional depositions upon good cause shown by the moving party. However, the arbitrator shall not have the
power to order the answering of interrogatories or the response to requests for admission. In connection with any arbitration, each party shall provide to the other, no later than seven business days before the date of the arbitration, the identity
of all persons that may testify at the arbitration and a copy of all documents that may be introduced at the arbitration or considered or used by a party’s witness or expert. The arbitrator’s decision and award shall be made and delivered
within six months of the selection of the arbitrator. The arbitrator’s decision shall set forth a reasoned basis for any award of damages or finding of liability. The arbitrator shall not have power to award damages in excess of actual
compensatory damages and shall not multiply actual damages or award punitive damages or any other damages that are specifically excluded under this Agreement, and each party hereby irrevocably waives any claim to such damages. 

The parties covenant and agree that they will participate in the arbitration in good faith. This Section 13(j) applies equally to
requests for temporary, preliminary or permanent injunctive relief, except that in the case of temporary or preliminary injunctive relief any party may proceed in court without prior arbitration for the limited purpose of avoiding immediate and
irreparable harm. 
 Each of the parties hereto (i) hereby irrevocably submits to the jurisdiction of any United States District Court
of competent jurisdiction for the purpose of enforcing the award or decision in any such proceeding, (ii) hereby waives, and agrees not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim
that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution (except as protected by applicable law), that the suit,
action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court, and hereby waives and agrees not to
seek any review by any court of any other jurisdiction which may be called upon to grant an enforcement of the judgment of any such court. Each of the parties hereto hereby consents to service of process by registered mail at the address to which
notices are to be given. Each of the parties hereto agrees that its, his or her submission to jurisdiction and its, his or her consent to service of process by mail is made for the express benefit of the other parties hereto. Final judgment against
any party hereto in any such action, suit or proceeding may be enforced in other jurisdictions by suit, action or proceeding on the judgment, or in any other manner provided by or pursuant to the laws of such other jurisdiction. 

(k) Counterparts. For the convenience of the parties and to facilitate execution, this Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which shall constitute one and the same document. 
 [SIGNATURE PAGE
FOLLOWS] 







 The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to
by the undersigned as of the date first above written. 
  

			
	TA THI PARENT, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	Address:
	
	  

	  

	  



 The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the
undersigned as of the date first above written. 
  

			
	OPTIONEE:
	
	  

	Name:	 	
	
	Address:
	
	  

	  

	  



 SPOUSE’S CONSENT 
 I
acknowledge that I have read the 
 foregoing Incentive Stock Option Agreement 

and understand the contents thereof. 
  

	
	  










 
	
	DESIGNATED BENEFICIARY:
	
	  

	
	Beneficiary’s Address:
	
	  

	  

	  










 Appendix A 

STOCK OPTION EXERCISE NOTICE 
  

			
	TA THI Parent, Inc.
	Attention:	 	  

	  

	  

	  


 Pursuant to the terms of my stock option agreement dated
                     (the “Agreement”) under the TA THI Parent, Inc. 2014 Stock Option and Grant Plan, I, [Insert Name]
                    , hereby [Circle One] partially/fully exercise such option by including herein payment in the amount of
$         representing the purchase price for [Fill in number of Option Shares]                  option shares. I have chosen the
following form(s) of payment: 
  

					
	 ̈	    	1.	    	Cash
	 ̈	    	2.	    	Certified or bank check payable to TA THI Parent, Inc.
	 ̈	    	3.	    	 Other (as described in the Agreement (please describe))

                          
                                         
                                         
                                         
               .



 In connection with my exercise of the option as set forth above, I hereby represent and warrant to TA
THI Parent, Inc. as follows: 
 (i) I am purchasing the option shares for my own account for investment only, and not for resale or with a
view to the distribution thereof. 
 (ii) I have had such an opportunity as I have deemed adequate to obtain from TA THI Parent, Inc. such
information as is necessary to permit me to evaluate the merits and risks of my investment in TA THI Parent, Inc. and have consulted with my own advisers with respect to my investment in TA THI Parent, Inc. 

(iii) I have sufficient experience in business, financial and investment matters to be able to evaluate the risks involved in the purchase of
the option shares and to make an informed investment decision with respect to such purchase. 
 (iv) I can afford a complete loss of the
value of the option shares and am able to bear the economic risk of holding such option shares for an indefinite period of time. 
 (v) I
understand that the option shares may not be registered under the Securities Act of 1933 (it being understood that the option shares are being issued and sold in reliance on the exemption provided in Rule 701 thereunder) or any applicable state
securities or “blue sky” laws and may not be sold or otherwise transferred or disposed of in the absence of an effective registration statement under the Securities Act of 1933 and under any applicable state securities or “blue
sky” laws (or exemptions from the registration requirement thereof). I further acknowledge that certificates representing option shares will bear restrictive legends reflecting the foregoing. 







 
			
	Sincerely yours,
	
	  

	Name:	 	
		
	Address: