BlackRock (TCBX) reports 850,967 shares, 5.2% ownership (Schedule 13G/A)

Rhea-AI Filing Summary

BlackRock, Inc. reports beneficial ownership of 850,967 shares of Third Coast Bancshares, Inc. common stock (CUSIP 88422P109) as of 03/31/2026. The filing states this equals 5.2% of the class and that BlackRock has sole dispositive power over 850,967 shares and sole voting power over 836,582 shares. The Schedule 13G/A clarifies holdings reflect certain Reporting Business Units and notes that various persons may have rights to dividends or sale proceeds. The filing is signed by Spencer Fleming, Managing Director on 04/27/2026.

Insights

Institutional Ownership Analyst

BlackRock discloses a >5% passive stake in TCBX with full dispositive authority.

BlackRock reports beneficial ownership of 850,967 shares, representing 5.2% of Third Coast Bancshares common stock as of 03/31/2026. The filing attributes voting and dispositive powers to BlackRock's Reporting Business Units rather than to unrelated business units.

Because this is a Schedule 13G/A, it indicates passive or investment-management holdings under the stated SEC release; subsequent filings would show any change in status or percent ownership.

Key Figures

Beneficial ownership: 850,967 shares Percent of class: 5.2% Sole voting power: 836,582 shares +3 more

6 metrics

Beneficial ownership 850,967 shares Amount beneficially owned as of 03/31/2026

Percent of class 5.2% Percent of common stock represented by 850,967 shares

Sole voting power 836,582 shares Sole power to vote or direct the vote (Item 4(c)(i))

Sole dispositive power 850,967 shares Sole power to dispose or direct disposition (Item 4(c)(iii))

CUSIP 88422P109 Identifier for Third Coast Bancshares common stock

Filing signature date 04/27/2026 Signature by Spencer Fleming, Managing Director

Key Terms

beneficially owned, sole dispositive power, Schedule 13G/A, Reporting Business Units, +1 more

5 terms

beneficially owned regulatory

"reflects the securities beneficially owned, or deemed to be beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 850,967"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G/A regulatory

"This Schedule 13G/A reflects the securities beneficially owned"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Reporting Business Units other

"beneficially owned by certain business units (collectively, the "Reporting Business Units")"

Investment Company Act of 1940 regulatory

"A listing of the shareholders of an investment company registered under the Investment Company Act of 1940"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Third Coast Bancshares, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

88422P109

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 88422P109

1

Names of Reporting Persons

BlackRock, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 836,582.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 850,967.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

850,967.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.2 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Third Coast Bancshares, Inc.
(b)	Address of issuer's principal executive offices: 20202 HIGHWAY 59 NORTH, SUITE 190 HUMBLE TX 77338
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 88422P109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 850967
(b)	Percent of class: 5.2 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 836582
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 850967
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of Third Coast Bancshares, Inc.. No one person's interest in the common stock of Third Coast Bancshares, Inc. is more than five percent of the total outstanding common shares.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	04/27/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7

FAQ

What stake does BlackRock report in Third Coast Bancshares (TCBX)?

BlackRock reports beneficial ownership of 850,967 shares, equal to 5.2% of common stock as of 03/31/2026. The filing shows BlackRock holds sole dispositive power over these shares and sole voting power over 836,582 shares.

Does the Schedule 13G/A show who can vote the shares for BlackRock?

Yes. The filing states BlackRock has sole power to vote or direct the vote for 836,582 shares. It also reports sole dispositive power for 850,967 shares, indicating control over sale decisions for that amount.

Which date does the filing use for the ownership amount?

The ownership figure is stated as of 03/31/2026 on the cover of the filing. The Schedule 13G/A is signed by a BlackRock representative on 04/27/2026 reflecting the reporting signature date.

Are the reported BlackRock holdings held for other clients or funds?

The filing explains the amount reflects securities held by certain Reporting Business Units of BlackRock, Inc.; it excludes securities held by other business units disaggregated under SEC Release No. 34-39538. Specific client or fund beneficiaries are not listed.

Does the filing indicate anyone else has rights to proceeds or dividends?

The filing states that "various persons" have the right to receive dividends or proceeds and that no single other person's interest exceeds 5% of outstanding common shares. No specific beneficiaries are identified in the excerpt.