Document:

EX-10.11

 Exhibit 10.11 

ST FINANCIAL GROUP, INC. 

2017 STOCK INCENTIVE PLAN 

 ST FINANCIAL GROUP, INC. 

2017 STOCK INCENTIVE PLAN 

TABLE OF CONTENTS 
  

					
	 SECTION 1. DEFINITIONS
	  	 	1	 
		
	 1.1 Definitions
	  	 	1	 
		
	SECTION 2. THE STOCK INCENTIVE PLAN	  	 	4	 
		
	 2.1 Stock Subject to the Plan
	  	 	4	 
		
	 2.2 Administration of the Plan
	  	 	4	 
		
	 2.3 Eligibility
	  	 	4	 
		
	 SECTION 3. TERMS OF STOCK INCENTIVES
	  	 	5	 
		
	 3.1 Terms and Conditions of All Stock Incentives
	  	 	5	 
		
	 3.2 Terms and Conditions of Options
	  	 	7	 
		
	 3.3 Terms and Conditions of Stock Appreciation Rights
	  	 	8	 
		
	 3.4 Terms and Conditions of Stock Awards
	  	 	9	 
		
	 3.5 Terms and Conditions of Dividend Equivalent Rights
	  	 	9	 
		
	 3.6 Terms and Conditions of Performance Unit Awards
	  	 	9	 
		
	 3.7 Terms and Conditions of Restricted Stock Units
	  	 	10	 
		
	 3.8 Treatment of Awards Upon Termination of Employment
	  	 	11	 
		
	 SECTION 4. RESTRICTIONS ON STOCK
	  	 	11	 
		
	 4.1 Custody of Shares
	  	 	11	 
		
	 4.2 Restrictions on Transfer
	  	 	11	 
		
	 SECTION 5. GENERAL PROVISIONS
	  	 	11	 
		
	 5.1 Withholding
	  	 	11	 
		
	 5.2 Changes in Capitalization; Merger; Liquidation
	  	 	11	 
		
	 5.3 Cash Awards
	  	 	13	 

  
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	 5.4 Compliance with Code
	  	 	14	 
		
	 5.5 Right to Terminate Employment or Service; No Shareholder Rights
	  	 	14	 
		
	 5.6 Non-Alienation of Benefits
	  	 	14	 
		
	 5.7 Restrictions on Delivery and Sale of Shares; Legends; Shareholders Agreement
	  	 	14	 
		
	 5.8 Listing and Legal Compliance
	  	 	15	 
		
	 5.9 Inability to Obtain Authority
	  	 	15	 
		
	 5.10 Termination and Amendment of the Plan
	  	 	15	 
		
	 5.11 Incentive Stock Option Approval
	  	 	15	 
		
	 5.12 Choice of Law
	  	 	15	 
		
	 5.13 Effective Date of Plan
	  	 	16	 

  
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 ST FINANCIAL GROUP, INC. 

2017 STOCK INCENTIVE PLAN 

PURPOSE 
 The 2017 Stock
Incentive Plan for ST Financial Group, Inc. is intended to (a) provide incentives to certain officers, employees, directors, and other service providers of the Company and its Affiliates to stimulate their efforts toward the continued success
of the Company and to operate and manage the business in a manner that will provide for the long-term growth and profitability of the Company; (b) encourage stock ownership by certain officers, employees, directors, and other service providers
by providing them with a means to acquire a proprietary interest in the Company, acquire shares of Stock, or to receive compensation which is based upon appreciation in the value of Stock; and (c) provide a means of obtaining, rewarding and
retaining officers, employees, directors, and other service providers. 
 SECTION 1. DEFINITIONS 

1.1 Definitions. Whenever used herein, the masculine pronoun will be deemed to include the feminine, and the singular to include the
plural, unless the context clearly indicates otherwise, and the following capitalized words and phrases are used herein with the meaning thereafter ascribed: 

(a) “Affiliate” means: 

(1) Any Subsidiary or Parent, 

(2) An entity that directly or through one or more intermediaries controls, is controlled by, or is under common control with
the Company, as determined by the Company, or 
 (3) Any entity in which the Company has such a significant interest that
the Company determines it should be deemed an “Affiliate”, as determined in the sole discretion of the Company. 
 (b)
“Board of Directors” means the board of directors of the Company. 
 (c) “Code” means the Internal Revenue
Code of 1986, as amended. 
 (d) “Committee” means the committee appointed by the Board of Directors to administer the
Plan. If the Stock becomes subject to registration under the Exchange Act and publicly traded, the Committee shall consist solely of two or more members of the Board of Directors who are both “outside directors” as defined in Treas. Reg.
§ 1.162-27(e) as promulgated by the Internal Revenue Service and “non-employee directors” as defined in Rule
16b-3(b)(3) as promulgated under the Exchange Act. Further, the membership of the Committee shall satisfy the requirements of any national securities exchange or nationally recognized quotation or market
system on which the Stock is then traded. If no such Committee appointment is in effect at any time, “Committee” shall mean the Board of Directors. 

  
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 (e) “Company” means ST Financial Group, Inc., a Texas corporation. 

(f) “Disability” has the same meaning as provided in the long-term disability plan or policy maintained or, if applicable,
most recently maintained, by the Company or, if applicable, any Affiliate of the Company for the Participant. If no long-term disability plan or policy was ever maintained on behalf of the Participant or, if the determination of Disability relates
to an Incentive Stock Option, Disability means that condition described in Code Section 22(e)(3), as amended from time to time. In the event of a dispute, the determination of Disability will be made by the Committee. 

(g) “Dividend Equivalent Rights” means certain rights to receive cash payments as described in
Section 3.5. 
 (h) “Exchange Act” means the Securities Exchange Act of 1934, as amended from
time to time. 
 (i) “Fair Market Value” refers to the determination of the value of a share of Stock as of a date,
determined as follows (except as otherwise specified in a Stock Incentive Agreement): 
 (1) if the shares of Stock are
traded on any national securities exchange or any nationally recognized quotation or market system, Fair Market Value shall mean the closing price of a share of Stock as of the relevant date, as reported by any such exchange or system on which the
shares of Stock are then traded; or 
 (2) if the shares of Stock are not actively traded or reported on any exchange or
system on such date or on the business day immediately preceding such date, Fair Market Value shall mean the fair market value of a share of Stock as determined by the Committee in its sole discretion. 

Notwithstanding the foregoing, for purposes of granted Non-Qualified Stock Options or Stock Appreciation Rights, Fair
Market Value of Stock shall be determined in accordance with the requirements of Code Section 409A, and for purposes of granting Incentive Stock Options, Fair Market Value of Stock shall be determined in accordance with the requirements of Code
Section 422. 
 (j) “Incentive Stock Option” means an incentive stock option within the meaning of Section 422 of
the Internal Revenue Code. 
 (k) “Option” means a Non-Qualified Stock Option or an
Incentive Stock Option. 
 (l) “Over 10% Owner” means an individual who at the time an Incentive Stock Option to such
individual is granted owns Stock possessing more than 10% of the total combined voting power of the Company or one of its Subsidiaries, determined by applying the attribution rules of Code Section 424(d). 

  
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 (m) “Non-Qualified Stock Option” means a
stock option that is not an Incentive Stock Option. 
 (n) “Parent” means any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company if, with respect to Incentive Stock Options, at the time of the granting of the Option, each of the corporations other than the Company owns stock possessing 50% or more of the total combined
voting power of all classes of stock in one of the other corporations in such chain. A Parent shall include any entity other than a corporation to the extent permissible under Section 424(f) of the Code or regulations and rulings thereunder.

 (o) “Participant” means an individual who receives a Stock Incentive hereunder. 

(p) “Performance Unit Award” refers to a performance unit award as described in Section 3.6. 

(q) “Plan” means the ST Financial Group, Inc. 2017 Stock Incentive Plan, as amended. 

(r) “Restricted Stock Units” refers to the rights described in Section 3.7. 

(s) “Stock” means the Company’s common stock. 

(t) “Stock Appreciation Right” means a stock appreciation right described in Section 3.3. 

(u) “Stock Award” means a stock award described in Section 3.4. 

(v) “Stock Incentive Agreement” means an agreement between the Company and a Participant or other documentation evidencing an
award of a Stock Incentive. 
 (w) “Stock Incentive Program” means a written program established by the Committee, pursuant
to which Stock Incentives are awarded under the Plan under uniform terms, conditions and restrictions set forth in such written program. 

(x) “Stock Incentives” means, collectively, Dividend Equivalent Rights, Incentive Stock Options, Non-Qualified Stock Options, Performance Unit Awards, Restricted Stock Units, Stock Appreciation Rights and Stock Awards. 

(y) “Subsidiary” means any corporation (other than the Company) in an unbroken chain of corporations beginning with the
Company if, at the time of the granting of the Option, each of the corporations other than the last corporation in the unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other
corporations in the chain. A “Subsidiary” shall include any entity other than a corporation to the extent permissible under Section 424(f) of the Code or regulations or rulings thereunder. 

  
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 (z) “Termination of Employment” means the termination of the employment or
other service relationship between a Participant and the Company and its Affiliates, regardless of whether severance or similar payments are made to the Participant, for any reason, including, but not by way of limitation, a termination by
resignation, discharge, death, Disability or retirement. The Committee will, in its absolute discretion, determine the effect of all matters and questions relating to a Termination of Employment as it affects a Stock Incentive, including, but not by
way of limitation, the question of whether a leave of absence constitutes a Termination of Employment and the treatment of awards upon Termination of Employment, as provided in Section 3.8. 

SECTION 2. THE STOCK INCENTIVE PLAN 

2.1 Stock Subject to the Plan. Subject to adjustment in accordance with Section 5.2, 2,000,0001 shares of Stock (the “Maximum Plan Shares”) are hereby reserved exclusively for issuance upon exercise or payment pursuant to Stock Incentives, all or any of which may be pursuant to
any one or more Stock Incentive, including without limitation, Incentive Stock Options. Subject to adjustment as provided in Section 5.2, the maximum number of shares of Stock with respect to which a Participant may be
granted Stock Incentives under the Plan during any calendar year is 500,0002 shares of Stock. The shares of Stock attributable to the nonvested, unpaid, unexercised, unconverted or otherwise
unsettled portion of any Stock Incentive that is forfeited or cancelled or expires or terminates for any reason without becoming vested, paid, exercised, converted or otherwise settled in full will again be available for purposes of the Plan. Shares
of Stock withheld as full or partial payment to the Company for the purchase or exercise price relating to a Stock Incentive, or to satisfy tax withholding obligations, shall again be available for grant under the Plan. 

2.2 Administration of the Plan. The Plan is administered by the Committee. The Committee has full authority in its discretion to
determine the officers, employees, directors and other service providers of the Company or its Affiliates to whom Stock Incentives will be granted and the terms and provisions of Stock Incentives, subject to the Plan. Subject to the provisions of
the Plan, the Committee has full and conclusive authority to interpret the Plan; to prescribe, amend and rescind rules and regulations relating to the Plan; to determine the terms and provisions of the respective Stock Incentive Agreements and to
make all other determinations necessary or advisable for the proper administration of the Plan. The Committee’s determinations under the Plan need not be uniform and may be made by it selectively among persons who receive, or are eligible to
receive, awards under the Plan (whether or not such persons are similarly situated). The Committee’s decisions are final and binding on all Participants. 

2.3 Eligibility. Stock Incentives may be granted pursuant to this Plan only to officers, employees, directors, and other service
providers of the Company or any Affiliate of the Company; provided, however, that an Incentive Stock Option may only be granted to an employee of the Company or any Parent or Subsidiary. In the case of Incentive Stock Options, the aggregate Fair
Market Value (determined as of the date an Incentive Stock Option is granted) of Stock with respect to which stock options intended to meet the requirements of Code Section 422 become exercisable for the first time by an individual during any
calendar year under all plans of the Company and its Subsidiaries may not exceed $100,000; provided further, that if the limitation is exceeded, the Incentive Stock Option(s) which cause the limitation to be exceeded will be treated as Non-Qualified Stock Option(s). 
  

 

	1 	Amounts are prior to giving effect to the one-for-two reverse stock split to be approved by the Company’s shareholders on the same
date the Company’s shareholders approve this Plan. 

	2 	See footnote (1) above. 

  
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 SECTION 3. TERMS OF STOCK INCENTIVES 

3.1 Terms and Conditions of All Stock Incentives. 

(a) The number of shares of Stock as to which a Stock Incentive may be granted will be determined by the Committee in its sole discretion,
subject to the provisions of Section 2.1 as to the total number of shares available for grants under the Plan and subject to the limits in Section 2.3. Each Stock Incentive shall contain a vesting
period of at least one year; provided, that the Committee shall have discretion to set any vesting period for full-value Stock Incentives covering shares of Stock not to exceed five percent (5%) of the maximum number of shares of Stock authorized
under the Plan under Section 2.1. 
 (b) Each Stock Incentive will either be evidenced by a Stock Incentive
Agreement in such form and containing such terms, conditions and restrictions as the Committee may determine to be appropriate or be made subject to the terms of a Stock Incentive Program, containing such terms, conditions and restrictions as the
Committee may determine to be appropriate. Each Stock Incentive Agreement or Stock Incentive Program is subject to the terms of the Plan and any provisions contained in the Stock Incentive Agreement or Stock Incentive Program that are inconsistent
with the Plan are null and void. The Committee may, but is not required to, structure any Stock Incentive so as to qualify as performance-based compensation under Code Section 162(m). 

(c) The date as of which a Stock Incentive is granted will be the date on which the Committee has approved the terms and conditions of the
Stock Incentive and has determined the recipient of the Stock Incentive and the number of shares, if any, covered by the Stock Incentive, and has taken all such other actions necessary to complete the grant of the Stock Incentive; provided, that, in
the case of a Stock Incentive granted to a non-employee director, the date as of which a Stock Incentive is granted shall be the date on which it is approved by the Board or the Committee. 

(d) Any Stock Incentive may be granted in connection with all or any portion of a tandem Stock Incentive. Exercise or vesting of a Stock
Incentive granted in connection with another Stock Incentive may result in a pro rata surrender or cancellation of any related Stock Incentive, as specified in the applicable Stock Incentive Agreement or Stock Incentive Program. 

(e) Stock Incentives are not transferable or assignable except by will or by the laws of descent and distribution and are exercisable, during
the Participant’s lifetime, only by the Participant; or in the event of the Disability of the Participant, by the legal representative of the Participant; or in the event of death of the Participant, by the legal representative of the
Participant’s estate or if no legal representative has been appointed, by the successor in interest determined under the Participant’s will; except to the extent that the Committee may provide otherwise as to any Stock Incentives other
than Incentive Stock Options. 

  
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 (f) After the date of grant of a Stock Incentive, the Committee may, in its sole discretion,
modify the terms and conditions of a Stock Incentive, except to the extent that such modification is prohibited under Section 5.10 or would be inconsistent with other provisions of the Plan or would materially adversely
affect the rights of a Participant under the Stock Incentive (except as otherwise permitted under the Plan), or to the extent that the mere possession (as opposed to the exercise) of such power would result in adverse tax consequences to any
Participant under Code Section 409A. 
 (g) To the extent any performance based Stock Incentives are awarded under the Plan, the
performance goals (the “Performance Goals”) shall consist of any of (or any combination of) the following: growth in interest income and expense; net income; net interest margin; efficiency ratio; reduction in non-accrual loans and non-interest expense; growth in non-interest income and ratios to earnings assets; net revenue growth and ratio
to earning assets; capital ratios; asset or liability interest rate sensitivity and gap; effective tax rate; deposit growth and composition; liquidity management; securities portfolio (value, yield, spread, maturity, or duration); earning asset
growth and composition (loans, securities); non-interest income (e.g., fees, premiums and commissions, loans, wealth management, treasury management, insurance, funds management); overhead ratios, productivity
ratios; credit quality measures; return on assets; return on equity; economic value of equity; compliance and regulatory ratings; internal controls; enterprise risk measures (e.g., interest rate, loan concentrations, portfolio composition, credit
quality, operational measures, compliance ratings, balance sheet, liquidity, insurance); volume in production or loans; cash flow; cost; revenues; sales; ratio of debt to debt plus equity; net borrowing, credit quality or debt ratings; profit before
tax; economic profit; earnings before interest and taxes; earnings before interest, taxes, depreciation and amortization; gross margin; profit margin; earnings per share; operating earnings; capital expenditures; expenses or expense levels; economic
value added; ratio of operating earnings to capital spending or any other operating ratios; free cash flow; net profit; net sales; net asset value per share; the accomplishment of mergers, acquisitions, dispositions, securities offerings or similar
extraordinary business transactions; sales growth; price of the Company’s common shares; return on investment; return on assets, equity or shareholders’ equity; market share; inventory levels, inventory turn or shrinkage; customer
satisfaction; or total return to shareholders. The Performance Goals shall be computed in accordance with generally accepted accounting principles or under a methodology established by the Committee at the time a Stock Incentive is granted and in
accordance with Code Section 162(m). The Committee may provide in any Stock Incentive intended to qualify as performance-based compensation under Section 162(m) of the Code that any evaluation of performance may include or exclude the
impact, if any, on reported financial results of any of the following events that occurs during a performance period: (a) asset write-downs, (b) litigation or claim judgments or settlements, (c) changes in tax laws, accounting
principles or other laws or provisions, (d) reorganization or restructuring programs, (e) acquisitions and divestitures, (f) foreign exchange gains or losses, or (g) gains and losses that are treated as unusual in nature or that
occur infrequently under Accounting Standards Codification Topic 225. Such inclusions or exclusions shall be prescribed in a form and at a time that meets the requirements of Code Section 162(m) for qualification of the Stock Incentive as
performance-based compensation. 
 (h) Notwithstanding any provision of this Plan, any Stock Incentive Agreement or any Stock Incentive
Program to the contrary, any Stock Incentive received by the Participant, issued hereunder, and/or any amount received with respect to any sale of any Stock issued hereunder, or cash paid, shall be subject to potential cancellation, recoupment,
rescission, payback or other action in accordance with the terms of the Company’s Clawback Policy, if any, as it may 

  
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be amended from time to time (the “Policy”). The Participant agrees and consents to the Company’s application, implementation and enforcement of (a) the Policy or any
similar policy established by the Company that may apply to the Participant and (b) any provision of applicable law relating to cancellation, rescission, payback or recoupment of compensation, and expressly agrees that the Company may take such
actions as are necessary to effectuate the Policy, any similar policy (as applicable to the Participant) or applicable law without further consent or action being required by the Participant. To the extent that the terms of this Plan, any Stock
Incentive Agreement or any Stock Incentive Program, on the one hand, and the Policy or any similar policy, on the other, conflict, then the terms of such Policy or similar policy shall prevail. 

(i) No fractional shares of Stock shall be granted or delivered pursuant to the Plan or any Stock Incentive. In the event a Stock Incentive
would result in a fractional share of Stock, the number of shares of Stock will be rounded down and the value of the fractional share of Stock shall be paid to the Participant in cash. 

3.2 Terms and Conditions of Options. Each Option granted under the Plan must be evidenced by a Stock Incentive Agreement. At the time
any Option is granted, the Committee will determine whether the Option is to be an Incentive Stock Option or a Non-Qualified Stock Option, and the Option must be clearly identified as to its status as an
Incentive Stock Option or a Non-Qualified Stock Option. Incentive Stock Options may only be granted to employees of the Company or any Subsidiary or Parent. At the time any Incentive Stock Option granted under
the Plan is exercised, the Company will be entitled to legend the certificates representing the shares of Stock purchased pursuant to the Option to clearly identify them as representing the shares purchased upon the exercise of an Incentive Stock
Option. An Incentive Stock Option may only be granted within ten (10) years from the date the Plan is adopted or approved by the Company’s shareholders. 

(a) Option Price. Subject to adjustment in accordance with Section 5.2 and the other provisions of
this Section 3.2, the exercise price (the “Exercise Price”) of the Option shall be no less than 100% of the Fair Market Value of the underlying Stock on the date the Option is granted. With respect to each
grant of an Incentive Stock Option to a Participant who is an Over 10% Owner, the Exercise Price may not be less than 110% of the Fair Market Value on the date the Option is granted. 

(b) Option Term. Any Incentive Stock Option granted to a Participant who is not an Over 10% Owner and any Non-Qualified Stock Option is not exercisable after the expiration of ten (10) years after the date the Option is granted. Any Incentive Stock Option granted to an Over 10% Owner is not exercisable after the
expiration of five (5) years after the date the Option is granted. The term of any Option shall be as specified in the applicable Stock Incentive Agreement. 

(c) Payment. Except as otherwise provided in a Stock Incentive Agreement, payment of the Exercise Price will be made in cash or in
other consideration acceptable to the Committee. No shares may be issued or delivered upon exercise of an Option and the holder of the Option shall not have the rights of a shareholder with respect to the shares of Stock covered thereby until full
payment has been made. 

  
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 (d) Conditions to the Exercise of an Option. Each Option granted under the Plan is
exercisable on the terms specified in the Stock Incentive and set forth in the Stock Incentive Agreement. Subsequent to the grant of an Option, the Committee, at any time before complete termination of such Option, may modify the terms of an Option
to the extent not prohibited by the terms of the Plan, including, without limitation, accelerating the time or times at which such Option may be exercised in whole or in part; provided, however, that the Committee may not modify an Option in
a manner that would result in adverse tax consequences to any Participant under Code Section 409A. 
 (e) Termination of Stock
Options. The termination of the right to exercise an Option shall be specified in the respective Stock Incentive Agreement for such Option. In addition, with respect to an Incentive Stock Option, in the event of Termination of Employment of a
Participant, the Option or portion thereof held by the Participant which is unexercised will expire, terminate, and become unexercisable no later than the expiration of three (3) months after the date of Termination of Employment; provided,
however, that in the case of a holder whose Termination of Employment is due to death or Disability, up to one (1) year may be substituted for such three (3) month period. For purposes of this Subsection (e), Termination of Employment of
the Participant will not be deemed to have occurred if the Participant is employed by another corporation (or a parent or subsidiary corporation of such other corporation) which has assumed the Incentive Stock Option of the Participant in a
transaction to which Code Section 424(a) is applicable. 
 (f) Special Provisions for Certain Substitute Options.
Notwithstanding anything to the contrary in this Section 3.2, any Option issued in substitution for an option previously issued by another entity, which substitution occurs in connection with a transaction to which Code
Section 424(a) is applicable, may provide for an exercise price computed in accordance with such Code Section and the regulations thereunder and may contain such other terms and conditions as the Committee may prescribe to cause such substitute
Option to contain as nearly as possible the same terms and conditions (including the applicable vesting and termination provisions) as those contained in the previously issued option being replaced thereby. 

3.3 Terms and Conditions of Stock Appreciation Rights. Each Stock Appreciation Right granted under the Plan must be evidenced by a
Stock Incentive Agreement. A Stock Appreciation Right entitles the Participant to receive the excess of (1) the Fair Market Value of a specified or determinable number of shares of the Stock at the time of payment or exercise over (2) a
specified or determinable price which may not be less than the Fair Market Value of the Stock on the date of grant. A Stock Appreciation Right granted in connection with another Stock Incentive may only be exercised to the extent that the related
Stock Incentive has not been exercised, paid or otherwise settled. 
 (a) Term. Any Stock Appreciation Right is not exercisable after
the expiration of ten (10) years after the date the Stock Appreciation Right is granted. 
 (b) Settlement. Upon settlement of a
Stock Appreciation Right, the Company must pay to the Participant the appreciation in cash or shares of Stock (valued at the aggregate Fair Market Value on the date of payment or exercise) as provided in the Stock Incentive Agreement or, in the
absence of such provision, as the Committee may determine. 

  
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 (c) Conditions to Exercise. Each Stock Appreciation Right granted under the Plan is
exercisable or payable at such time or times, or upon the occurrence of such event or events, and in such amounts, as the Committee specifies in the Stock Incentive Agreement; provided, however, that subsequent to the grant of a Stock Appreciation
Right, the Committee, at any time before complete termination of such Stock Appreciation Right, may accelerate the time or times at which such Stock Appreciation Right may be exercised or paid in whole or in part. 

3.4 Terms and Conditions of Stock Awards. The number of shares of Stock subject to a Stock Award and restrictions or conditions on such
shares, if any (including but not limited to those based on Performance Goals), will be as the Committee determines, and the certificate for such shares will bear evidence of any such restrictions or conditions. Subsequent to the date of the grant
of the Stock Award, the Committee has the power to permit, in its discretion, an acceleration of the expiration of an applicable restriction period with respect to any part or all of the shares awarded to a Participant. The Committee may require a
cash payment from the Participant in an amount no greater than the aggregate Fair Market Value of the shares of Stock awarded determined at the date of grant in exchange for the grant of a Stock Award or may grant a Stock Award without the
requirement of a cash payment. 
 3.5 Terms and Conditions of Dividend Equivalent Rights. A Dividend Equivalent Right entitles the
Participant to receive payments from the Company in an amount determined by reference to any cash dividends paid on a specified number of shares of Stock to Company shareholders of record during the period such rights are effective. The Committee
may impose such restrictions and conditions on any Dividend Equivalent Right as the Committee in its discretion shall determine, including the date any such right shall terminate and may reserve the right to terminate, amend or suspend any such
right at any time. 
 (a) Payment. Payment in respect of a Dividend Equivalent Right may be made by the Company in cash or shares of
Stock (valued at Fair Market Value as of the date payment is owed) as provided in the Stock Incentive Agreement or Stock Incentive Program, or, in the absence of such provision, as the Committee may determine. To the extent a Dividend Equivalent
Right is granted in connection with a Stock Incentive that is subject to vesting conditions, such Dividend Equivalent Right will vest and be eligible for payment on the same terms and conditions that apply to the vesting of the underlying Stock
Incentive. 
 (b) Conditions to Payment. Each Dividend Equivalent Right granted under the Plan is payable at such time or times, or
upon the occurrence of such event or events, and in such amounts, as the Committee specifies in the applicable Stock Incentive Agreement or Stock Incentive Program; provided, however, that subsequent to the grant of a Dividend Equivalent Right, the
Committee, at any time before complete termination of such Dividend Equivalent Right, may accelerate the time or times at which such Dividend Equivalent Right may be paid in whole or in part; provided, however, that the Committee shall not have such
power to the extent that the mere possession (as opposed to the exercise) of such power would result in adverse tax consequences to any Participant under Code Section 409A. 

3.6 Terms and Conditions of Performance Unit Awards. A Performance Unit Award shall entitle the Participant to receive, at a specified
future date, payment of an amount equal to all or a portion of the value of a specified or determinable number of units (stated in terms of a 

  
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designated or determinable dollar amount per unit) granted by the Committee. At the time of the grant, the Committee must determine the base value of each unit, the number of units subject to a
Performance Unit Award, and the Performance Goals applicable to the determination of the ultimate payment value of the Performance Unit Award. The Committee may provide for an alternate base value for each unit under certain specified conditions.

 (a) Payment. Payment in respect of Performance Unit Awards may be made by the Company in cash or shares of Stock (valued at Fair
Market Value as of the date payment is owed) as provided in the applicable Stock Incentive Agreement or Stock Incentive Program or, in the absence of such provision, as the Committee may determine. 

(b) Conditions to Payment. Each Performance Unit Award granted under the Plan shall be payable at such time or times, or upon the
occurrence of such event or events, and in such amounts, as the Committee may specify in the applicable Stock Incentive Agreement or Stock Incentive Program; provided, however, that subsequent to the grant of a Performance Unit Award, the Committee,
at any time before complete termination of such Performance Unit Award, may accelerate the time or times at which such Performance Unit Award may be paid in whole or in part; provided, however, that the Committee shall not have such power to the
extent that the mere possession (as opposed to the exercise) of such power would result in adverse tax consequences to any Participant under Code Section 409A. 

3.7 Terms and Conditions of Restricted Stock Units. Restricted Stock Units shall entitle the Participant to receive, at a specified
future date or event, payment of an amount equal to all or a portion of the Fair Market Value of a specified number of shares of Stock at the end of a specified period. At the time of the grant, the Committee will determine the factors which will
govern the portion of the Restricted Stock Units so payable, including, at the discretion of the Committee, any performance criteria (including the Performance Goals) that must be satisfied as a condition to payment. Restricted Stock Unit awards
containing performance criteria may be designated as performance share awards. 
 (a) Payment. Payment in respect of Restricted Stock
Units may be made by the Company in cash or shares of Stock (valued at Fair Market Value as of the date payment is owed) as provided in the applicable Stock Incentive Agreement or Stock Incentive Program, or, in the absence of such provision, as the
Committee may determine. 
 (b) Conditions to Payment. Each Restricted Stock Unit granted under the Plan is payable at such time or
times, or upon the occurrence of such event or events, and in such amounts, as the Committee may specify in the applicable Stock Incentive Agreement or Stock Incentive Program; provided, however, that subsequent to the grant of a Restricted Stock
Unit, the Committee, at any time before complete termination of such Restricted Stock Unit, may accelerate the time or times at which such Restricted Stock Unit may be paid in whole or in part; provided, however, that the Committee shall not have
such power to the extent that the mere possession (as opposed to the exercise) of such power would result in adverse tax consequences to any Participant under Code Section 409A. 

  
 10 

 3.8 Treatment of Awards Upon Termination of Employment. Except as otherwise
provided by Section 3.2(e), any award under this Plan to a Participant who has experienced a Termination of Employment or termination of some other service relationship with the Company and its Affiliates may be cancelled,
accelerated, paid or continued, as provided in the applicable Stock Incentive Agreement or Stock Incentive Program, or as the Committee may otherwise determine to the extent not prohibited by the Plan. The portion of any award exercisable in the
event of continuation or the amount of any payment due under a continued award may be adjusted by the Committee to reflect the Participant’s period of service from the date of grant through the date of the Participant’s Termination of
Employment or other service relationship or such other factors as the Committee determines are relevant to its decision to continue the award. 

SECTION 4. RESTRICTIONS ON STOCK 

4.1 Custody of Shares. Shares of Stock that are awarded under a Stock Incentive will be issued in book form or held by the Company as
custodian until such shares are no longer subject to a risk of forfeiture or otherwise restricted under the terms of the Stock Incentive Agreement. 

4.2 Restrictions on Transfer. The Participant does not have the right to make or permit to exist any disposition of the shares of Stock
issued pursuant to the Plan except as provided in the Plan or the applicable Stock Incentive Agreement or Stock Incentive Program. Any disposition of the shares of Stock issued under the Plan by the Participant not made in accordance with the Plan
or the applicable Stock Incentive Agreement or Stock Incentive Program will be void. The Company will not recognize, or have the duty to recognize, any disposition not made in accordance with the Plan and the applicable Stock Incentive Agreement or
Stock Incentive Program, and the shares so transferred will continue to be bound by the Plan and the applicable Stock Incentive Agreement or Stock Incentive Program. 

SECTION 5. GENERAL PROVISIONS 

5.1 Withholding. The Company must deduct from all cash distributions under the Plan any taxes required to be withheld by federal, state
or local government. Unless otherwise required by the Committee, the Company may withhold, or permit a Participant to elect to have withheld from a “Share Payment”, the number of shares of Stock having a Fair Market Value equal to the
minimum statutory withholding requirements but in no event shall such withholding exceed the minimum statutory withholding requirements. Notwithstanding the immediately preceding sentence, the Company, in its discretion, may withhold shares of Stock
or permit a Participant to elect to have withheld from a Share Payment, the number of shares of Stock having a Fair Market Value up to, but not in excess of, the maximum statutory withholding requirements, provided that withholding shares of Stock
with a Fair Market Value in excess of the minimum statutory withholding requirements will not result in a Stock Incentive otherwise classified as an equity award under ASC Topic 718 to be classified as a liability award under ASC Topic 718. The term
“Share Payment” shall mean the issuance or delivery of shares of Stock upon the grant, vesting, exercise or settlement of a Stock Incentive, as the case may be 

5.2 Changes in Capitalization; Merger; Liquidation. 

(a) Adjustments to Shares. The number and kind of shares of Stock with respect to which Stock Incentives hereunder may be granted (both
overall and individual limitations) and which are the subject of outstanding Stock Incentives, and the maximum number and exercise thereof, shall be adjusted as the Committee determines (in its sole discretion) to be appropriate, in the event that:

 (1) the Company or an Affiliate effects one or more stock dividends, stock splits, reverse stock splits, subdivisions,
consolidations or other similar events; 

  
 11 

 (2) the Company or an Affiliate engages in a transaction to which
Section 424 of the Code applies; 
 (3) there occurs any other event that in the judgment of the Committee necessitates
such action; 
 provided, however, that if such an event occurs, the Committee shall make adjustments to the limits on Stock Incentives specified in
Section 2.1 that are proportionate to the modifications of the Stock that are on account of such corporate changes. If any capital reorganization or reclassification of the capital stock of the Company or any consolidation
or merger of the Company with another person, or the sale of all or substantially all the Company’s assets to another person, shall be effected such that holders of Stock shall be entitled to receive stock, securities, or other property
(including, without limitation, cash) with respect to or in exchange for Stock, then each holder of a Stock Incentive shall thereafter have the right to acquire in accordance with the terms and conditions specified herein and in the Stock Incentive
Agreement such shares of stock, securities or other property (including, without limitation, cash) as would be issuable or payable in such reorganization, reclassification, consolidation, merger or sale with respect to or in exchange for a number of
shares of Stock that could have been acquired immediately theretofore with respect to such Stock Incentive had such reorganization, reclassification, consolidation, merger or sale not taken place, subject to such adjustments as the Committee, in its
sole discretion, shall determine to be appropriate. 
 (b) Substitution of Stock Incentives on Merger or Acquisition.
The Committee may grant Stock Incentives in substitution for stock awards, stock options, stock appreciation rights or similar awards held by an individual who becomes an employee of the Company or an Affiliate in connection with a transaction to
which Section 424(a) of the Code applies. The terms of such substituted Stock Incentives shall be determined by the Committee in its sole discretion, subject only to the limitations of Section 2.1. 

(c) Effect of Certain Transactions. Unless expressly provided to the contrary in an applicable Stock Incentive Agreement, if the
Company experiences an event which results in a Change in Control (as defined below), in the event that the Company (if it is the surviving entity) or the surviving or acquirer entity or its direct or indirect parent does not assume, substitute or
continue the outstanding Stock Incentives in such Change in Control with substantially the same terms and economic value for such outstanding Stock Incentives, then such Stock Incentives shall fully vest and become fully exercisable and all
forfeiture restrictions thereon shall lapse and, with respect to Stock Incentives with performance-based vesting, all performance goals or other vesting criteria will be deemed achieved at one hundred percent (100%) of target levels. With respect to
Options and Stock Appreciation Rights not so assumed, substituted or continued, such Options and Stock Appreciation Rights will be exercisable for a period of time determined by the Committee in its sole discretion, and such Options and Stock
Appreciation Rights will terminate upon the expiration of such period, and the Committee will provide notice of such period to the Participants. 

  
 12 

 (d) Change in Control. A “Change in Control” means a transaction or circumstance
in which any of the following have occurred, provided that the Board of Directors shall have determined that any such transaction or circumstance has resulted in a Change in Control, as defined in this paragraph, which determination shall be made in
a manner consistent with Treas. Reg. § 1. 409A-3(i)(5): 
 (1) the date that any
person or entity, including a group as described in Section 13(d)(3) of the Exchange Act (a “Person”), other than a trustee or other fiduciary holding securities under an employee benefit plan of the Company or an entity owned
directly or indirectly by the shareholders of the Company in substantially the same proportions as their ownership of stock of the Company immediately before such Change in Control, becomes the beneficial owner (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing more than 50% of the total voting power represented by the Company’s then outstanding voting securities; 

(2) the merger, reorganization or consolidation of the Company whereby the Company’s equity holders existing immediately
prior to such merger, reorganization or consolidation do not, immediately after consummation of such merger, reorganization or consolidation, beneficially own (within the meaning of Rule 13d-3 under the
Exchange Act) more than 50% of the combined voting power of the surviving entity’s then outstanding voting securities; 

(3) a sale of all or substantially all of the assets of the Company to any person or entity in which the Company, any
subsidiary of the Company or the Company’s equity holders existing immediately prior to such sale beneficially own (as defined above) less than 50% of the combined voting power of such acquiring entity’s then outstanding voting securities;
or 
 (4) the date that a majority of the members of the Board of Directors of the Company is replaced during any 24-month period by directors whose appointment or election is not endorsed by a majority of the members of the Board of Directors of the Company before the date of the appointment or election. 

(e) Company Authority to Transact. The existence of the Plan and the Stock Incentives granted pursuant to the Plan shall not affect in
any way the right or power of the Company to make or authorize any adjustment, reclassification, reorganization or other change in its capital or business structure, any merger or consolidation of the Company, any issue of debt or equity securities
having preferences or priorities as to the Stock or the rights thereof, the dissolution or liquidation of the Company, any sale or transfer of all or any part of its business or assets, or any other corporate act or proceeding. 

5.3 Cash Awards. The Committee may, at any time and in its discretion, grant to any holder of a Stock Incentive the right to receive,
at such times and in such amounts as determined by the Committee in its discretion, a cash amount which is intended to reimburse such person for all or a portion of the federal, state and local income taxes imposed upon such person as a consequence
of the receipt of the Stock Incentive or the exercise of rights thereunder. 

  
 13 

 5.4 Compliance with Code. All Incentive Stock Options to be granted hereunder are
intended to comply with Code Section 422, and all provisions of the Plan and all Incentive Stock Options granted hereunder must be construed in such manner as to effectuate that intent. The Plan and all Stock Incentives awarded hereunder are
intended to comply with the requirements of Code Section 409A and shall be administered and interpreted in such a manner. Notwithstanding any provision of this Plan to the contrary, if the Committee determines that a Stock Incentive constitutes
nonqualified deferred compensation subject to Code Section 409A, and a Participant is a “specified employee” as defined in Code Section 409A(a)(2)(B)(i) and the Treasury Regulations and other guidance issued thereunder, then any
payments made on account of a Termination of Service shall commence no earlier than the first day of the seventh month following such director’s Termination of Service. For purposes of Stock Incentives that constitute nonqualified deferred
compensation subject to Code Section 409A, a Termination of Service must constitute a “separation from service”, as defined in Treas. Reg. §1.409A-1(h), including the default presumptions
thereunder, if such Termination of Service constitutes a payment event. If payments under a Stock Incentive are to be made in installments, each installment payment is deemed a separate payment for purposes of Code Section 409A. 

5.5 Right to Terminate Employment or Service; No Shareholder Rights. Nothing in the Plan or in any Stock Incentive Agreement confers
upon any Participant the right to continue as an officer, employee, director, or consultant of the Company or any of its Affiliates or affect the right of the Company or any of its Affiliates to terminate the Participant’s employment or
services at any time. The holder of a Stock Incentive or a Stock Incentive Agreement has, as such, none of the rights of a shareholder (except, in the case of Stock Awards, as may be provided in the applicable Stock Incentive Agreement). 

5.6 Non-Alienation of Benefits. Other than as provided herein, no benefit under the Plan may be
subject in any manner to anticipation, alienation, sale, transfer, assignment, pledge, encumbrance or charge; and any attempt to do so shall be void. No such benefit may, prior to receipt by the Participant, be in any manner liable for or subject to
the debts, contracts, liabilities, engagements or torts of the Participant. 
 5.7 Restrictions on Delivery and Sale of Shares; Legends;
Shareholders Agreement. Each Stock Incentive is subject to the condition that if at any time the Committee, in its discretion, shall determine that the listing, registration or qualification of the shares covered by such Stock Incentive upon any
securities exchange or under any state or federal law is necessary or desirable as a condition of or in connection with the granting of such Stock Incentive or the purchase or delivery of shares thereunder, the delivery of any or all shares pursuant
to such Stock Incentive may be withheld unless and until such listing, registration or qualification shall have been effected. If a registration statement is not in effect under the Securities Act of 1933 or any applicable state securities laws with
respect to the shares of Stock purchasable or otherwise deliverable under Stock Incentives then outstanding, the Committee may require, as a condition of exercise of any Option or as a condition to any other delivery of Stock pursuant to a Stock
Incentive, that the Participant or other recipient of a Stock Incentive represent, in writing, that the shares received pursuant to the Stock Incentive are being acquired for investment and not with a view to distribution and agree

  
 14 

 
that the shares will not be disposed of except pursuant to an effective registration statement, unless the Company shall have received an opinion of counsel that such disposition is exempt from
such requirement under the Securities Act of 1933 and any applicable state securities laws. The Company may include on certificates representing shares delivered pursuant to a Stock Incentive such legends referring to the foregoing representations
or restrictions or any other applicable restrictions on resale as the Company, in its discretion, shall deem appropriate. Each Stock Incentive is subject to the condition that the Participant execute any applicable shareholders agreement as
determined by the Committee upon issuance of the underlying stock. 
 5.8 Listing and Legal Compliance. The Committee may suspend the
exercise or payment of any Stock Incentive so long as it determines that securities exchange listing or registration or qualification under any securities laws is required in connection therewith and has not been completed on terms acceptable to the
Committee. 
 5.9 Inability to Obtain Authority. The inability of the Company to obtain authority from any regulatory body having
jurisdiction, which authority is deemed by the Company’s counsel to be necessary to the lawful issuance and sale of any shares of Stock or payment of cash hereunder, will relieve the Company of any liability in respect of the failure to issue
or sell such shares of Stock or make such cash payment as to which requisite authority will not have been obtained. 
 5.10 Termination
and Amendment of the Plan. The Board of Directors may amend or terminate this Plan at any time; provided, however, an amendment that would have a material adverse effect on the rights of a Participant under an outstanding Stock Incentive
is not valid with respect to such Stock Incentive without the Participant’s consent, except as necessary for Stock Incentives to satisfy the conditions imposed under the Code; and provided, further, that the shareholders of the Company must
approve any amendment that is subject to approval of shareholders under the rules of the exchange or trading system on which Stock becomes traded. Except in connection with a corporate transaction involving the Company (including, without
limitation, any stock dividend, stock split, extraordinary cash dividend, recapitalization, reorganization, merger, consolidation, split-up, spin-off, combination, or
exchange of shares or other transaction referred to in Section 5.2 hereof), the terms of outstanding Stock Incentives may not be amended to reduce the exercise price of outstanding Options or Stock Appreciation Rights, and
further, outstanding Options or Stock Appreciation Rights may not be cancelled in exchange for cash, other Stock Incentives, or Options or Stock Appreciation Rights with an exercise price that is less than the exercise price of the original Options
or Stock Appreciation Rights without shareholder approval. 
 5.11 Incentive Stock Option Approval. Incentive Stock Options may be
issued under this Plan for a period of ten (10) years after the effective date of the Plan, provided that the shareholders of the Company approve the adoption of the Plan within twelve (12) months prior to or after the adoption of the Plan
by the Board of Directors. If such approval is not obtained, any Incentive Stock Options granted hereunder will be treated as Non-Qualified Stock Options. 

5.12 Choice of Law. The laws of the State of Texas shall govern the Plan, to the extent not preempted by federal law, without reference
to the principles of conflict of laws. 

  
 15 

 5.13 Effective Date of Plan. The Plan shall be effective as of the date the Plan is
or was approved by the Board of Directors. 
 5.14 Shareholder Approval. The Plan, and any amendments hereto requiring shareholder
approval pursuant to Section 5.10, are subject to approval by vote of the shareholders of the Company at the next annual or special meeting of shareholders following adoption by the Board of Directors. 

5.15 Term of Plan. Unless sooner terminated by the Board of Directors pursuant to Section 5.10, the Plan
shall terminate on the date that is ten (10) years after the date the Plan is approved by the Board of Directors, and no Stock Incentives may be granted or awarded after such termination date. The termination of the Plan shall not affect the
validity of any Stock Incentive outstanding on the date of termination. 
 [Execution Page follows] 

  
 16 

 EXECUTION PAGE 

IN WITNESS WHEREOF, the undersigned authority has executed this Plan on
            , 2017, to be effective as provided herein on February 23, 2017. 
  

			
	ST FINANCIAL GROUP, INC.
		
	By:	 	 
	Title:	 	Chief Executive Officer

  
 17EX-10.12

 Exhibit 10.12 

SPIRIT OF TEXAS BANCSHARES, INC. 

NON-QUALIFIED STOCK OPTION AGREEMENT 

THIS NON-QUALIFIED STOCK OPTION AGREEMENT (this “Agreement”) is entered
into by and between Spirit of Texas Bancshares, Inc., a Texas corporation (the “Company”), and __________________ (the “Participant”) on this the _____ day of _______________, 20___. 

W I T N E S S E T H: 
 1.
Grant of Option. On ________ (the “Grant Date”) the Company granted to Participant the Option to purchase from the Company [number] ([numeral]) fully paid and non-assessable shares of
the common stock, par value $___ per share (“Stock”) of the Company at a price of [dollar value] and [cents]/100 ($[numeral]) per share, subject to the vesting provisions in Section 2, with such price being
not less than the Fair Market Value of the Stock on the Grant Date. This Option is subject to all of the terms, conditions, and provisions hereof and the ST Financial Group, Inc. 2017 Stock Incentive Plan (as amended, the “Plan”).

 2. Vesting. The Option shall become vested incrementally with respect to the shares of Stock described in
Section 1 as follows: 
 (a) [fraction] of shares of Stock on each of the first [number] anniversaries of the
Grant Date; and 
 (b) [Describe any other vesting terms.]. 

Notwithstanding any provision of this Agreement to the contrary, the Option is only exercisable to the extent that it has become vested. 

3. Transferability. This Option is not transferable or assignable, except by will or by the laws of descent and distribution and shall
be exercisable during Participant’s lifetime, only by the Participant. Any attempt to alienate, assign, pledge, hypothecate, or otherwise dispose of the Options, except as provided for herein or in the Plan, or attempted levy of any attachment,
execution, or similar process upon the rights or interest hereby conferred shall be void ab initio and the Committee may take any action it deems appropriate to prevent such attempted disposition. 

4. Exercise of Option. The Option may be exercised at any time, in whole or in part, to the extent that it has become vested under
Section 2. The right to exercise this Option shall expire ten (10) years after the Grant Date (the “Expiration Date”). 

(a) Termination of Provision of Services. If the Participant ceases to provide services to the Company and its Affiliates for any
reason other than death or disability (as defined in Section 22(e)(3) of the Code), the unvested portion of the Option shall thereupon terminate and the Participant may exercise the vested portion of the Option for a period of three
(3) months thereafter or, if sooner, until the Expiration Date. Thereafter, the Option shall terminate and cease to be exercisable. 

 (b) Disability. If the Participant ceases to provide services of the Company or one of its
Affiliates by reason of a Disability, the unvested portion of the Option shall thereupon terminate and the Participant may exercise the vested portion of the Option for a period of twelve (12) months thereafter or, if sooner, until the
Expiration Date. Thereafter, the Option shall terminate and cease to be exercisable. 
 (c) Death. Upon the death of the Participant,
the unvested portion of the Option shall thereupon terminate, and the Participant’s legal representatives, heirs, legatees or distributes may exercise the vested portion of the Option for a period of twelve (12) months thereafter or, if
sooner, until the Expiration Date. Thereafter, the Option shall terminate and cease to be exercisable. 
 5. Method of Exercise. Any
exercise of the Option shall be accompanied by a written notice to the Company specifying the number of shares of Stock as to which the Option is being exercised that is accompanied by payment of the exercise price and arrangements for minimum
required tax withholdings and shall otherwise be in accordance with the terms of the Plan. The exercise price shall be paid in cash, irrevocable instructions to a broker to deliver promptly to the Company cash equal to the exercise price, in whole
shares of Stock already owned by the Participant (the number of which shall be equal in value to the exercise price based on the Fair Market Value on the date of the exercise), or partly in cash and partly in Stock, or by forfeiting a number of
shares of Stock subject to and outstanding under the Option that, based on the Fair Market Value on the date of the exercise, is equal in value to the exercise price. 

6. Change in Control. The Participant’s right to exercise this Option upon a Change in Control will be determined in accordance
with the terms of the Plan. 
 7. Securities Act of 1933. Unless at the time of exercise of this Option there is an effective
registration statement filed with the Securities and Exchange Commission under the Securities Act of 1993 (as amended, the “1933 Act”), with respect to the sale of the shares of Stock issuable upon exercise of this Option, the
Participant’s right to exercise this Option shall be subject to the delivery to the Company upon such exercise of a letter, in form satisfactory to the Company’s counsel: (a) representing that the Participant intends to acquire the
shares of Stock issuable upon such exercise for investment for his or her own account and without a view to the resale or distribution thereof; and (b) agreeing that such shares shall not be sold or transferred by him or her in the absence of
an effective registration statement filed with the Securities and Exchange Commission under the 1933 Act with respect to such transfer or an opinion of counsel satisfactory to the Company that such sale or transfer is not required to be registered
under the 1933 Act or any applicable state securities law. Notwithstanding any provision of the Plan to the contrary, the grant of the Option and the issuance of Stock will be subject to compliance with all applicable requirements of federal, state,
or foreign law with respect to such securities and with the requirements of any stock exchange or market system upon which the Stock may then be listed. The Option may not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state, or foreign securities laws or other law or regulations or the requirements of any stock exchange or market system upon which the Stock may then be listed. 

  
 2 

 8. Subject to Provisions of Plan. The Options provided for herein are granted pursuant to
the Plan and are subject to all the terms and conditions and provisions of the Plan. The terms that are defined in the Plan shall have the same meanings when used herein, except where the context clearly requires otherwise. A copy of the Plan is
attached hereto and made a part hereof as if fully set out herein. 
 9. Withholding. As a condition to any exercise of the Option,
Participant shall promptly remit in full to the Company the minimum amount of federal and (if any) state income and employment tax withholding that the Company is required to remit to the Internal Revenue Service or applicable state department of
revenue in accordance with the then-current provisions of the Code and applicable state law. Unless otherwise required by the Committee, the Company may withhold, or permit a Participant to elect to have withheld from a “Share Payment”,
the number of shares of Stock having a Fair Market Value equal to the minimum statutory withholding requirements but in no event shall such withholding exceed the minimum statutory withholding requirements. Notwithstanding the immediately preceding
sentence, the Company, in its discretion, may withhold shares of Stock or permit a Participant to elect to have withheld from a Share Payment, the number of shares of Stock having a Fair Market Value up to, but not in excess of, the maximum
statutory withholding requirements, provided that withholding shares of Stock with a Fair Market Value in excess of the minimum statutory withholding requirements will not result in a Stock Incentive otherwise classified as an equity award under ASC
Topic 718 to be classified as a liability award under ASC Topic 718. The term “Share Payment” shall mean the issuance or delivery of shares of Stock upon the grant, vesting, exercise or settlement of a Stock Incentive, as the case may be

 10. General. This Agreement shall be construed and interpreted according to the laws of the State of Texas. The foregoing contains
the entire and only agreement between the parties respecting the subject matter hereof, and any representation, promise, or condition in connection therewith not incorporated herein shall not be binding upon either party. The headings of the various
sections of this Agreement are for convenience of reference only, and shall not modify, define, limit or expand the express provisions of this Agreement. This Agreement shall be binding upon and inure to the benefit of any successor or successors of
the Company. This Agreement shall not be amended or modified except in writing and executed by the parties hereto; provided, however that the Committee may from time to time modify or amend this Agreement and the terms of the Option in accordance
with the terms of the Plan. 
 11. Acknowledgment. Participant acknowledges receipt of a copy of the Plan, a copy of which is
attached hereto, and represents that Participant is familiar with the terms and provisions thereof. Participant agrees to accept as binding, conclusive, and final all decisions and interpretations of the Committee on any questions arising under the
Plan. 
 12. No Rights as a Shareholder. The Participant shall have no rights as a shareholder with respect to any shares of Stock
covered by this Agreement until the Option is exercised by written notice and accompanied by payment as provided in Section 5 of this Agreement. 

  
 3 

 13. No Rights to Continued Employment. Nothing contained in the Plan or in this Agreement
shall confer on the Participant any right to continue in the employ or service of the Company or any of its Affiliates or interfere in any way with the right of the Company or an Affiliate to terminate the employment or service of the Participant at
any time, with or without cause, notwithstanding the possibility that the number of shares of Stock purchasable by such person under his or her Option may thereby be reduced or eliminated. 

[Execution Page Follows] 

  
 4 

 EXECUTION PAGE 

IN WITNESS WHEREOF, the parties have executed this Agreement the day and year first above written. 

 

			
	SPIRIT OF TEXAS BANCSHARES, INC.

 
			
		
	By:	 	 
	Title:	 	 

  

	
	PARTICIPANT
	
	   

	[name]

  
 5

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