EX-4.2





 Exhibit 4.2 

THIS WARRANT AND THE SECURITIES ISSUABLE UPON THE EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THEY MAY NOT BE
SOLD, OFFERED FOR SALE, PLEDGED, HYPOTHECATED, OR OTHERWISE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT REGISTRATION IS
NOT REQUIRED UNDER SUCH ACT OR UNLESS SOLD PURSUANT TO RULE 144 UNDER SUCH ACT. 
  

			
	 Date of Issuance

November 17, 2008
	  	 Void after

November 17, 2018


 ST FINANCIAL GROUP, INC. 

WARRANT TO PURCHASE SHARES OF COMMON STOCK 

This Warrant is issued to
                                         
                                         
                   or his assigns (“Holder”) by ST Financial Group, Inc., a Texas corporation (the “Company”) for
value received. 
 1. Purchase of Shares. 

(a) Number of Shares. Subject to the terms and conditions set forth herein, Holder is entitled, upon surrender of this Warrant at the
principal office of the Company (or at such other place as the Company shall notify Holder in writing), to purchase from the Company __________ shares of the Company’s fully paid and nonassessable Common Stock, no par value (the “Common
Stock”). 
 (b) Exercise Price. The exercise price for the shares of Common Stock issuable pursuant to this
Section 1 (the “Shares”) shall be $5.00 per share (the “Exercise Price”). The Shares and the Exercise Price shall be subject to adjustment pursuant to Section 8 hereof. 

2. Exercise Period. This Warrant shall be exercisable, in whole or in part, during the term commencing on November 17, 2008
and ending at 5:00 p.m. Central Time on November 17, 2018 (the “Exercise Period”). 
 3. Method of Exercise. 

(a) While this Warrant remains outstanding and exercisable in accordance with Section 2 above, Holder may exercise, in whole or in part,
the purchase rights evidenced hereby. Such exercise shall be effected by: 
 (i) the surrender of the Warrant, together with a duly executed
copy of the Notice of Exercise attached hereto, to the Secretary of the Company at its principal office (or at such other place as the Company shall notify Holder in writing); and 

  

					
	ST FINANCIAL GROUP, INC.	 	1	  	WARRANT














 (ii) the payment to the Company of an amount equal to the aggregate Exercise Price for the
number of Shares being purchased. 
 (b) Each exercise of this Warrant shall be deemed to have been effected immediately prior to the close
of business on the day on which this Warrant is surrendered to the Company as provided in Section 3(a) above. At such time, the person or persons in whose name or names any certificate for the Shares shall be issuable upon such exercise as
provided in Section 3(c) below shall be deemed to have become Holder or holders of record of the Shares represented by such certificate. 

(c) As soon as practicable after the exercise of this Warrant in whole or in part, and in any event within ten (10) days thereafter, the
Company at its expense will cause to be issued in the name of, and delivered to, Holder, or as such Holder (upon payment by such Holder of any applicable transfer taxes) may direct: 

(i) a certificate or certificates for the number of Shares to which such Holder shall be entitled, and 

(ii) in case such exercise is in part only, a new warrant or warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of Shares equal to the number of such Shares described in this Warrant minus the number of such Shares purchased by Holder upon all exercises made in accordance with Section 3(a). 

4. Net Exercise. Notwithstanding any provisions herein to the contrary, if the fair market value of one share of Common Stock is greater than
the Exercise Price (at the date of calculation as set forth below), in lieu of exercising this Warrant by payment of cash, the Holder may elect to receive the number of shares of Common Stock equal to the value (as determined below) of this
Warrant (or the portion thereof being canceled) by surrender of this Warrant at the principal office of the Company together with the properly endorsed Notice of Exercise in which event the Company shall issue to the Holder a number of shares of
Common Stock computed using the following formula: 
 X = Y (A-B) 

A 
 Where X = the number of shares
of Common Stock to be issued to the Holder 
 Y = the number of shares of Common Stock purchasable under the Warrant or, if only a portion
of the Warrant is being exercised, the portion of the Warrant being canceled (at the date of such calculation) 
 A = the fair market value
of one share of the Company’s Common Stock (at the date of such calculation) 
 B = the Exercise Price (as adjusted to the date of such
calculation ) 

  

					
	ST FINANCIAL GROUP, INC.	 	2	  	WARRANT














 For purposes of the above calculation, the fair market value of one share of Common Stock
shall be: 
 (a) If the Common Stock is traded on a national securities exchange or admitted to unlisted trading privileges on such an
exchange, or is listed on the Nasdaq National Market or Nasdaq Small Cap Market (the “Nasdaq”), the fair market value as of a specified day shall be the last reported sale price of Common Stock on such exchange or on Nasdaq on such
date or if no such sale is made on such day, the mean of the closing bid and asked prices for such day on such exchange or on Nasdaq; 
 (b)
If the Common Stock is not so listed or admitted to unlisted trading privileges, the fair market value as of a specified day shall be the mean of the last bid and asked prices reported on such date (x) by the Nasdaq or (y) if reports are
unavailable under clause (x) above, by the National Quotation Bureau Incorporated; 
 (c) If the Common Stock is not so listed or
admitted to unlisted trading privileges and bid and ask prices are not reported, the fair market value as of a specified day shall be determined in good faith by the Board of Directors of the Company; or 

(d) If the Warrant is exercised concurrently with the effectiveness of the Company’s initial public offering of Common Stock registered
under the Act, the fair market value shall be the price to the public in such offering. 
 5. Representations and Warranties of the Company.
In connection with the transactions provided for herein, the Company hereby represents and warrants to Holder that: 
 (a) Organization,
Good Standing, and Qualification. The Company is a corporation duly organized, validly existing, and in good standing under the laws of the State of Texas and has all requisite corporate power and authority to carry on its business as now
conducted. The Company is duly qualified to transact business and is in good standing in each jurisdiction in which the failure to so qualify would have a material adverse effect on its business or properties. 

(b) Authorization. Except as may be limited by applicable bankruptcy, insolvency, reorganization or similar laws relating to or
affecting the enforcement of creditors’ rights, all corporate action has been taken on the part of the Company, its officers, directors, and stockholders necessary for the authorization, execution and delivery of this Warrant. The Company has
taken all corporate action required to make all the obligations of the Company reflected in the provisions of this Warrant the valid and enforceable obligations they purport to be. The issuance of this Warrant will not be subject to preemptive
rights of any stockholders of the Company. The Company has authorized sufficient shares of Common Stock to allow for the exercise of this Warrant. 

(c) Compliance with Other Instruments. The authorization, execution and delivery of the Warrant will not constitute or result in a
material default or violation of any law or regulation applicable to the Company or any material term or provision of the Company’s current Articles of Incorporation or bylaws, or any material agreement or instrument by which it is bound or to
which its properties or assets are subject. 

  

					
	ST FINANCIAL GROUP, INC.	 	3	  	WARRANT














 (d) Valid Issuance of Common Stock. The Shares, when issued, sold, and delivered in
accordance with the terms of the Warrants for the consideration expressed herein, will be duly and validly issued, fully paid and nonassessable and, based in part upon the representations and warranties of Holders in this Warrant, will be issued in
compliance with all applicable federal and state securities laws. 
 6. Representations and Warranties of Holder. In connection
with the transactions provided for herein, Holder hereby represents and warrants to the Company that: 
 (a) Authorization. Holder
represents that it has full power and authority to enter into this Warrant. This Warrant constitutes Holder’s valid and legally binding obligation, enforceable in accordance with its terms, except as may be limited by (i) applicable
bankruptcy, insolvency, reorganization, or similar laws relating to or affecting the enforcement of creditors’ rights and (ii) laws relating to the availability of specific performance, injunctive relief or other equitable remedies. 

(b) Purchase Entirely for Own Account. Holder acknowledges that this Warrant is entered into by Holder in reliance upon such
Holder’s representation to the Company that the Warrant and the Shares (collectively, the “Securities”) will be acquired for investment for Holder’s own account, not as a nominee or agent, and not with a view to the resale
or distribution of any part thereof, and that Holder has no present intention of selling, granting any participation in or otherwise distributing the same. By acknowledging this Warrant, Holder further represents that Holder does not have any
contract, undertaking, agreement, or arrangement with any person to sell, transfer or grant participations to such person or to any third person, with respect to the Securities. 

(c) Disclosure of Information. Holder acknowledges that it has received all the information it considers necessary or appropriate for
deciding whether to acquire the Securities. Holder further represents that it has had an opportunity to ask questions and receive answers from the Company regarding the terms and conditions of the offering of the Securities. 

(d) Investment Experience. Holder is an investor in securities of companies in the development stage and acknowledges that it is able
to fend for itself, can bear the economic risk of its investment, and has such knowledge and experience in financial or business matters that it is capable of evaluating the merits and risks of the investment in the Securities. If other than an
individual, Holder also represents it has not been organized solely for the purpose of acquiring the Securities. 
 (e) Restricted
Securities. Holder understands that the Securities are characterized as “restricted securities” under the federal securities laws inasmuch as they are being acquired from the Company in a transaction not involving a public offering and
that under such laws and applicable regulations such securities may be resold without registration under the Act, only in certain limited circumstances. In this connection, Holder represents that it is familiar with Rule 144, as presently in effect,
as promulgated by the SEC under the Act (“Rule 144”), and understands the resale limitations imposed thereby and by the Act. 

(f) Further Limitations on Disposition. Without in any way limiting the representations set forth above, Holder further agrees not to
make any disposition of all or any portion of the Shares unless and until the transferee has agreed in writing for the benefit of the Company to be bound by the terms of this Warrant, including, without limitation, this Section 6, and: 

  

					
	ST FINANCIAL GROUP, INC.	 	4	  	WARRANT














 (i) there is then in effect a registration statement under the Act covering such proposed
disposition and such disposition is made in accordance with such registration statement; or 
 (ii) Holder shall have notified the Company
of the proposed disposition and shall have furnished the Company with a detailed statement of the circumstances surrounding the proposed disposition, and if reasonably requested by the Company, Holder shall have furnished the Company with an opinion
of counsel, reasonably satisfactory to the Company, that such disposition will not require registration of such shares under the Act. 
 (g)
Legends. It is understood that the Securities may bear the following legend: 
 THE SECURITIES REPRESENTED BY THIS
CERTIFICATE HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS. WITHOUT SUCH REGISTRATION, SUCH SECURITIES MAY NOT BE SOLD, PLEDGED, HYPOTHECATED OR OTHERWISE
TRANSFERRED AT ANY TIME WHATSOEVER, EXCEPT UPON DELIVERY TO THE COMPANY OF AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT REGISTRATION IS NOT REQUIRED FOR SUCH TRANSFER AND/OR THE SUBMISSION TO THE COMPANY OF SUCH OTHER EVIDENCE AS MAY BE
SATISFACTORY TO THE COMPANY TO THE EFFECT THAT ANY SUCH TRANSFER WILL NOT BE IN VIOLATION OF THE SECURITIES ACT OF 1933, AS AMENDED, AND/OR APPLICABLE STATE SECURITIES LAWS AND/OR ANY RULE OR REGULATION PROMULGATED THEREUNDER. 

7. Covenants of the Company. 
 (a)
Covenants as to Exercise Shares. The Company covenants and agrees that all Shares that may be issued upon the exercise of the rights represented by this Warrant will, upon issuance in accordance with the terms hereof, be validly issued and
outstanding, fully paid and nonassessable, and free from all taxes, liens and charges with respect to the issuance thereof. The Company further covenants and agrees that the Company will at all times during the Exercise Period, have authorized and
reserved, free from preemptive rights, a sufficient number of shares of Common Stock to provide for the exercise of the rights represented by this Warrant. If at any time during the Exercise Period the number of authorized but unissued shares of
Common Stock shall not be sufficient to permit exercise of this Warrant, the Company will take such corporate action as may, in the opinion of its counsel, be necessary to increase its authorized but unissued shares of Common Stock to such number of
shares as shall be sufficient for such purposes. 

  

					
	ST FINANCIAL GROUP, INC.	 	5	  	WARRANT














 (b) No Impairment. Except and to the extent waived or consented to by Holder or as
otherwise permitted under the terms hereof, the Company will not, by amendment of its Articles of Incorporation or through any reorganization, transfer of assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary
action, avoid or seek to avoid the observance or performance of any of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the carrying out of all the provisions of this Warrant and in the
taking of all such action as may be necessary or appropriate in order to protect the exercise rights of Holder against impairment. 
 8.
Adjustment of Exercise Price and Number of Shares. The number and kind of Shares purchasable upon exercise of this Warrant and the Exercise Price shall be subject to adjustment from time to time as follows: 

(a) Subdivisions, Combinations and Other Issuances. If the Company shall at any time after the issuance but prior to the expiration of
this Warrant subdivide its Common Stock, by split-up or otherwise, or combine its Common Stock, or issue additional shares of its Preferred Stock or Common Stock as a dividend with respect to any shares of its
Common Stock, the number of Shares issuable on the exercise of this Warrant shall forthwith be proportionately increased in the case of a subdivision or stock dividend, or proportionately decreased in the case of a combination. Appropriate
adjustments shall also be made to the Exercise Price payable per share, but the aggregate Exercise Price payable for the total number of Shares purchasable under this Warrant (as adjusted) shall remain the same. Any adjustment under this
Section 8(a) shall become effective at the close of business on the date the subdivision or combination becomes effective, or as of the record date of such dividend, or in the event that no record date is fixed, upon the making of such
dividend. 
 (b) Reclassification, Reorganization and Consolidation. In case of any reclassification, capital reorganization or
change in the capital stock of the Company (other than as a result of a subdivision, combination or stock dividend provided for in Section 8(a) above), then, as a condition of such reclassification, reorganization or change, lawful provision
shall be made, and duly executed documents evidencing the same from the Company or its successor shall be delivered to Holder, so that Holder shall have the right at any time prior to the expiration of this Warrant to purchase, at a total price
equal to that payable upon the exercise of this Warrant, the kind and amount of shares of stock and other securities or property receivable in connection with such reclassification, reorganization or change by a holder of the same number and type of
securities as were purchasable as Shares by Holder immediately prior to such reclassification, reorganization or change. In any such case appropriate provisions shall be made with respect to the rights and interest of Holder so that the provisions
hereof shall thereafter be applicable with respect to any shares of stock or other securities or property deliverable upon exercise hereof, and appropriate adjustments shall be made to the Exercise Price per Share payable hereunder, provided the
aggregate Exercise Price shall remain the same. 
 (c) Notice of Adjustment. When any adjustment is required to be made in the number
or kind of shares purchasable upon exercise of the Warrant, or in the Exercise Price, the Company shall promptly notify Holder of such event and of the number of Shares or other securities or property thereafter purchasable upon exercise of this
Warrant. 

  

					
	ST FINANCIAL GROUP, INC.	 	6	  	WARRANT














 9. No Fractional Shares or Scrip. No fractional shares or scrip representing
fractional shares shall be issued upon the exercise of this Warrant, but in lieu of such fractional shares the Company shall make a cash payment therefor on the basis of the Exercise Price then in effect. 

10. No Stockholder Rights. Prior to exercise of this Warrant, Holder shall not be entitled to any rights of a stockholder with
respect to the Shares, including (without limitation) the right to vote such Shares, receive dividends or other distributions thereon, exercise preemptive rights or be notified of stockholder meetings, and, except as otherwise provided in this
Warrant, such Holder shall not be entitled to any stockholder notice or other communication concerning the business or affairs of the Company. 
 11.
Transfer of Warrant. 
 (a) Transferability of Warrant. Subject to compliance with applicable federal and state securities
laws and any other contractual restrictions between the Company and Holder contained herein, this Warrant and all rights hereunder are transferable in whole or in part by Holder to any person or entity upon written notice to the Company, provided
that the Company has received an opinion of counsel or other evidence satisfactory to the Company that the transfer will be in compliance with the provisions of the Securities Act of 1933, as amended, or any similar Federal statute in effect at the
time in respect to the transfer of the Warrant. Within a reasonable time after the Company’s receipt of an executed Assignment Form in the form attached hereto, the transfer shall be recorded on the books of the Company upon the surrender of
this Warrant, properly endorsed, to the Company at its principal offices, and the payment to the Company of all transfer taxes and other governmental charges imposed on such transfer. In the event of a partial transfer, the Company shall issue to
the new holders one (1) or more appropriate new warrants. 
 (b) Warrant Register. The Company will maintain a register (the
“Warrant Register”) containing the names and addresses of the Holder or Holders. Any Holder of this Warrant or any portion thereof may change such Holder’s address as shown on the Warrant Register by written notice to the
Company requesting such change. Any notice or written communication required or permitted to be given to the Holder may be delivered or given by mail to such Holder as shown on the Warrant Register and at the address shown on the Warrant Register.
Until this Warrant is transferred on the Warrant Register of the Company, the Company may treat the Holder as shown on the Warrant Register as the absolute owner of this Warrant for all purposes, notwithstanding any notice to the contrary. 

12. Governing Law. This Warrant shall be governed by and construed under the laws of the State of Texas as applied
to agreements among Texas residents, made and to be performed entirely within the State of Texas. 
 13. Successors and
Assigns. The terms and provisions of this Warrant and the Purchase Agreement shall inure to the benefit of, and be binding upon, the Company and Holders hereof and their respective successors and assigns. 

14. Titles and Subtitles. The titles and subtitles used in this Warrant are used for convenience only and are not to be considered
in construing or interpreting this Warrant. 

  

					
	ST FINANCIAL GROUP, INC.	 	7	  	WARRANT














 15. Notices. All notices and other communications given or made pursuant hereto
shall be in writing and shall be deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed electronic mail or facsimile if sent during normal business hours of the recipient, and if not so
confirmed, then on the next business day, (c) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d) one (1) day after deposit with a nationally recognized overnight courier,
specifying next day delivery, with written verification of receipt. All communications shall be sent to the respective parties at the following addresses (or at such other addresses as shall be specified by notice given in accordance with this
Section 15): 
 If to the Company: 

ST Financial Group, Inc. 

625 University Drive E. 
 College
Station, Texas 77840 
 Attention: Corporate Secretary 

If to Holder: 

At the addresses shown on the signature pages hereto. 

16. Finder’s Fee. Each party represents that it neither is or will be obligated for any finder’s fee or commission in
connection with this transaction. Holder agrees to indemnify and to hold harmless the Company from any liability for any commission or compensation in the nature of a finder’s fee (and the costs and expenses of defending against such liability
or asserted liability) for which Holder or any of its officers, partners, employees or representatives is responsible. The Company agrees to indemnify and hold harmless Holder from any liability for any commission or compensation in the nature of a
finder’s fee (and the costs and expenses of defending against such liability or asserted liability) for which the Company or any of its officers, employees or representatives is responsible. 

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

18. Entire Agreement; Amendments and Waivers. This Warrant and any other documents delivered pursuant hereto constitute the full
and entire understanding and agreement between the parties with regard to the subjects hereof and thereof. Nonetheless, any term of this Warrant may be amended and the observance of any term of this Agreement may be waived (either generally or in a
particular instance and either retroactively or prospectively), with the written consent of the Company and Holder; or if this Warrant has been assigned in part, by Holders or rights to purchase a majority of the shares originally issuable pursuant
to this Warrant. 
 19. Severability. If any provision of this Warrant is held to be unenforceable under applicable law, such provision
shall be excluded from this Warrant and the balance of the Warrant shall be interpreted as if such provision were so excluded and shall be enforceable in accordance with its terms. 

  

					
	ST FINANCIAL GROUP, INC.	 	8	  	WARRANT














 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date above written.

  

					
	ST FINANCIAL GROUP, INC.
		
	By:	 	 
		 	Name:	 	 
		 	Title:	 	 


  

					
	ACKNOWLEDGED AND AGREED:
	
	HOLDER


					
		
	By:	 	 


					
		 	        Name:	 	 
		 	        Title:	 	 


					
		
	Address:	 	 
		 	 


  

					
	ST FINANCIAL GROUP, INC.	 	S-1	  	WARRANT














 NOTICE OF EXERCISE 

ST FINANCIAL GROUP, INC. 
 Attention: Corporate Secretary

 ☐ The undersigned hereby elects to purchase
                     shares of the Common Stock of ST FINANCIAL GROUP, INC. (the
“Company”) pursuant to the terms of the attached Warrant, and tenders herewith payment of the exercise price in full, together with all applicable transfer taxes, if any. 

☐ The undersigned hereby elects to purchase
                     shares of the Common Stock of the Company pursuant to the terms of the net exercise provisions set forth in
Section 4 of the attached Warrant, and shall tender payment of all applicable transfer taxes, if any. 
 The undersigned hereby
represents and warrants that Representations and Warranties in Section 6 of the attached Warrant are true and correct as of the date hereof. 
  

							
		 		 	HOLDER:
				
	Date:                                    
	 		 	By:	 	 

  

			
		
	Address:	  	 
		  	 
		  	 


  

			
	Name in which shares should be registered:
		
		 	 
		 	


  

					
	ST FINANCIAL GROUP, INC.	 		  	WARRANT














 ASSIGNMENT FORM 

(To assign the foregoing Warrant, execute 

this form and supply required information. 

Do not use this form to purchase shares.) 

FOR VALUE RECEIVED, the foregoing Warrant and all rights evidenced thereby
are hereby assigned to 
  

			
		
	Name:	  	 
		  	(Please Print)
	Address:	  	 
		  	(Please Print)


Dated:                         
             

			
		
	 Holder’s
 Signature:
	 	 
		
	 Holder’s
 Address:
	 	 

 NOTE: The signature to this Assignment Form must correspond with the name as it appears on the face of the Warrant.
Officers of corporations and those acting in a fiduciary or other representative capacity should provide proper evidence of authority to assign the foregoing Warrant. 

  

					
	ST FINANCIAL GROUP, INC.	 		  	WARRANT