How is the 1,318-share grant to Martin Basaldua classified in the TCBX Form 4?

The 1,318-share grant is classified under transaction code “A,” described as a grant, award, or other acquisition. It is labeled as a non-derivative transaction in common stock, increasing his direct holdings as part of director equity compensation at Third Coast Bancshares, Inc.

Director Martin Basaldua (TCBX) granted 1,318 restricted Third Coast Bancshares shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Basaldua Martin reported acquisition or exercise transactions in this Form 4 filing.

Third Coast Bancshares, Inc. director Martin Basaldua reported a compensation-related equity award. He received 1,318 shares of restricted common stock at a price of $0.00 per share, which will vest on the anniversary of the grant date under the award’s terms. Following the award, he holds 39,235 shares of common stock directly and 37,525 shares indirectly through an IRA.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Basaldua Martin

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,318	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 39,235 shares (Direct, null); Common Stock — 37,525 shares (Indirect, By IRA FBO Martin Basaldua)

Footnotes (1)

Represents shares of restricted common stock, which vest on the anniversary of the grant date, subject to the terms of the award. Includes 18,124 shares received as a distribution from Pinnacle Executive Services, LLC ("Pinnacle") in connection with the divestment of the reporting person's entire membership interest in Pinnacle on November 7, 2022. In prior reports, the reporting person reported beneficial ownership of 36,248 shares held by Pinnacle.

Key Figures

Restricted stock grant: 1,318 shares Direct holdings after grant: 39,235 shares Indirect IRA holdings: 37,525 shares +1 more

4 metrics

Restricted stock grant 1,318 shares Common Stock, grant at $0.00 per share

Direct holdings after grant 39,235 shares Common Stock, following award transaction

Indirect IRA holdings 37,525 shares Common Stock held by IRA FBO Martin Basaldua

Grant price $0.00 per share Restricted common stock award to director

Key Terms

restricted common stock, IRA FBO, grant, award, or other acquisition, non-derivative

4 terms

restricted common stock financial

"Represents shares of restricted common stock, which vest on the anniversary of the grant date"

Restricted common stock is company shares that carry limits on selling or transferring for a set period or until certain conditions are met, like time-based vesting or regulatory clearance. Think of them as shares in a locked box that gradually open; they can become freely tradable later but initially reduce the number of shares available on the market. Investors watch restricted stock because its eventual release can change a company’s share supply, affect stock price, and influence control and dilution.

IRA FBO financial

"By IRA FBO Martin Basaldua"

grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

non-derivative financial

"transaction_type: non-derivative"

Form 4 Insider Transactions: What Each Field Means →

05/26/2026 - 04:30 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Basaldua Martin

(Last)

(First)

(Middle)

20202 HIGHWAY 59 NORTH, SUITE 190

(Street)

HUMBLE

TEXAS

77338

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Third Coast Bancshares, Inc. [ TCBX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/21/2026		A		1,318⁽¹⁾	A	$0	39,235⁽²⁾	D
Common Stock								37,525	I	By IRA FBO Martin Basaldua

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents shares of restricted common stock, which vest on the anniversary of the grant date, subject to the terms of the award.

2. Includes 18,124 shares received as a distribution from Pinnacle Executive Services, LLC ("Pinnacle") in connection with the divestment of the reporting person's entire membership interest in Pinnacle on November 7, 2022. In prior reports, the reporting person reported beneficial ownership of 36,248 shares held by Pinnacle.

	/s/ R. John McWhorter, attorney-in-fact	05/26/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did TCBX director Martin Basaldua report?

Director Martin Basaldua reported receiving 1,318 shares of restricted common stock as a grant. The award was recorded at $0.00 per share and represents equity compensation rather than an open-market purchase or sale of Third Coast Bancshares, Inc. stock.

How many TCBX shares does Martin Basaldua hold after this Form 4?

After the reported transactions, Martin Basaldua holds 39,235 shares of Third Coast Bancshares, Inc. common stock directly. He also has 37,525 shares held indirectly through an IRA, giving a combined reported position across direct and indirect holdings in the company.

What are the terms of the restricted common stock granted to Martin Basaldua at TCBX?

The 1,318 restricted common shares granted to Martin Basaldua vest on the anniversary of the grant date. Vesting is subject to the terms of the award, meaning he must satisfy those conditions before the shares become fully unrestricted and freely transferable.

Was cash paid for the 1,318 TCBX shares reported on this Form 4?

No cash was paid for these 1,318 shares; they were granted at $0.00 per share. This indicates the transaction was an equity compensation award to the director, not an open-market purchase requiring personal cash outlay to acquire the stock.

What indirect holdings in TCBX does Martin Basaldua report on this Form 4?

Martin Basaldua reports 37,525 shares of Third Coast Bancshares, Inc. common stock held indirectly through an IRA. The filing describes these shares as held by “IRA FBO Martin Basaldua,” meaning they are owned in an individual retirement account for his benefit.