Specimen common stock certificate The other instruments defining the rights of the long-term debt securities of the Registrant and its subsidiaries are omitted pursuant to section (b)(4)(iii)(A) of Item 601 of Regulation S-K. The Registrant hereby agrees to furnish copies of these instruments to the SEC upon request. 5.1 Form of Opinion of Fenimore, Kay, Harrison & Ford, LLP

Exhibit 4.1

ZQ|CERT#|COY|CLS|RGSTRY|ACCT#|TRANSTYPE|RUN#|TRANS# COMMON STOCK COMMON STOCK PAR VALUE $0.01 PO BOX 43004, Providence, RI ###-###-#### MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 Certificate Number ZQ00000000 THIS CERTIFIES THAT is the owner of RED RIVER BANCSHARES, INC. INCORPORATED UNDER THE LAWS OF THE STATE OF LOUISIANA ** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Alexander David Sample **** Mr. Sample **** Mr. Sample MR. SAMPLE & MRS. SAMPLE & MR. SAMPLE & MRS. SAMPLE Shares * * 000000 * * * * * * * * * * * * * * * * * * * * * 000000 * * * * * * * * * * * * * * * * * * * * * 000000 * * * * * * * * * * * * * * * * * * * * * 000000 * * * * * * * * * * * * * * * * * * * * * 000000 * * * * * * * * * * * * * * SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 75686R 20 2 THIS CERTIFICATE IS TRANSFERABLE IN CITIES DESIGNATED BY THE TRANSFER AGENT, AVAILABLE ONLINE AT www.computershare.com ***ZERO HUNDRED THOUSAND ZERO HUNDRED AND ZERO*** **000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares*** *000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares**** 000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0 00000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00 0000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000 000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****0000 00**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****00000 0**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000 **Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000* *Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000** Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**Shares****000000**S FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK OF RED RIVER BANCSHARES, INC. transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of the certificate properly endorsed. This certificate and the shares represented hereby are issued and shall be subject to all the provisions of the Articles of Incorporation of Corporation, as amended from time to time, to all of which each holder of this certificate, by acceptance hereof, assents. This certificate is not valid unless countersigned by the Corporation’s Transfer Agent and Registrar. In Witness Whereof, the Corporation has caused this certificate to be executed by the facsimile signatures of its duly authorized officers and has caused a facsimile of its corporate seal to be hereunto affixed. CUSIP/IDENTIFIER Holder ID Insurance Value Number of Shares DTC Certificate Numbers ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### ###-###-#### Total Transaction XXXXXX XX X XXXXXXXXXX 1,000,000.00 123456 12345678 123456789012345 Num/No. Denom. Total 1 President and Chief Executive Officer Secretary DATED DD-MMM-YYYY COUNTERSIGNED AND REGISTERED: COMPUTERSHARE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, By AUTHORIZED SIGNATURE 2 3 4 5 6 1 1 2 3 4 5 6 7 2 3 4 5 6

RED RIVER BANCSHARES, INC. THE CORPORATION IS AUTHORIZED TO ISSUE PREFERRED STOCK. THE BOARD OF DIRECTORS OF THE CORPORATION HAS THE AUTHORITY TO AMEND THE ARTICLES OF INCORPORATION OF THE CORPORATION, WITHOUT SHAREHOLDER APPROVAL, TO ESTABLISH ONE OR MORE CLASSES OF PREFERRED STOCK AND TO FIX THE PREFERENCES, LIMITATIONS AND RELATIVE RIGHTS OF THE SHARES OF ANY CLASS OF PREFERRED STOCK AND TO ESTABLISH, AND FIX VARIATIONS IN RELATIVE RIGHTS AS BETWEEN, SERIES OF ANY PREFERRED CLASS. THE CORPORATION WILL FURNISH TO ANY SHAREHOLDER, UPON REQUEST AND WITHOUT CHARGE, A SUMMARY OF THE DESIGNATIONS, RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF THE SHARES OF EACH CLASS AND OF EACH SERIES OF EACH CLASS OF PREFERRED STOCK, SO FAR AS THE SAME HAVE BEEN FIXED. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM - as tenants in common TEN ENT - as tenants by the entireties JT TEN - as joint tenants with right of survivorship and not as tenants in common UNIF GIFT MIN ACT - Custodian  (Cust) (Minor) under Uniform Gifts to Minors Act. (State) UNIF TRF MIN ACT - .Custodian (until age ) Cust) .under Uniform Transfers to Minors Act .. (Minor)(State) Additional abbreviations may also be used though not in the above list. For value received, hereby sell, assign and transfer unto (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE) PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE Shares of the Common Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint Attorney to transfer the said stock on the books of the within-named Corporation with full power of substitution in the premises. Dated: 20 Signature(s) Guaranteed: Medallion Guarantee Stamp THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (Banks, Stockbrokers, Savings and Loan Associations and Credit Unions) WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15. Signature: Signature: Notice: The signature to this assignment must correspond with the name as written upon the face of the certificate, in every particular, without alteration or enlargement, or any change whatever. The IRS requires that the named transfer agent (“we”) report the cost basis of certain shares or units acquired after January 1, 2011. If your shares or units are covered by the legislation, and you requested to sell or transfer the shares or units using a specific cost basis calculation method, then we have processed as you requested. If you did not specify a cost basis calculation method, then we have defaulted to the first in, first out (FIFO) method. Please consult your tax advisor if you need additional information about cost basis. If you do not keep in contact with the issuer or do not have any activity in your account for the time period specified by state law, your property may become subject to state unclaimed property laws and transferred to the appropriate state.