Chain Bridge Bancorp (CBNA) director corrects reported share holdings in Form 4/A

Rhea-AI Filing Summary

Chain Bridge Bancorp Inc. director updates insider holdings. A Form 4/A amendment reports that on 12/15/2025 a transaction in Class A common stock, coded "C," covered 18,020 shares at $36.46 per share. Following this transaction, the director is shown as beneficially owning 18,208 shares in direct form. The amendment is explicitly described as correcting an administrative error in the number of securities reported as beneficially owned, with no underlying transaction details changed.

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

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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^*

Thompson-Byas Benita

(Last) (First) (Middle)

1445-A LAUGHLIN AVENUE

(Street)

MCLEAN VA 22101

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CHAIN BRIDGE BANCORP INC [ CBNA ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)
12/15/2025

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	12/15/2025		C		18,020	A	$36.46	18,208(1)	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This Form 4/A is being filed to correct an administrative error in the number of securities reported as beneficially owned following the reported transaction. No transaction information has changed.

Remarks:

	/s/ David M. Evinger, attorney in fact	02/05/2026
	** 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.

FAQ

What insider transaction does Chain Bridge Bancorp (CBNA) report in this Form 4/A?

The filing reports a 12/15/2025 transaction in Class A common stock coded "C" for 18,020 shares at $36.46 per share. The report focuses on correcting the number of shares beneficially owned after this transaction, not changing the transaction itself.

Why was this Chain Bridge Bancorp (CBNA) Form 4/A amendment filed?

The amendment was filed to correct an administrative error in the number of securities reported as beneficially owned after the transaction. The company states that no transaction information has changed, meaning price, date, and share amount for the trade remain the same.

How many Chain Bridge Bancorp (CBNA) shares does the director own after the reported transaction?

After the reported 12/15/2025 transaction, the director is shown as beneficially owning 18,208 shares of Chain Bridge Bancorp Class A common stock. The amendment’s sole purpose is to correct this post-transaction holdings figure, which is reported as directly owned.

What was the price per share in the Chain Bridge Bancorp (CBNA) insider transaction?

The Form 4/A shows the Class A common stock transaction priced at $36.46 per share. This price applies to the 18,020 shares involved in the 12/15/2025 transaction identified with transaction code "C" in the non-derivative securities table.

What is the relationship of the reporting person to Chain Bridge Bancorp (CBNA)?

The reporting person is identified as a director of Chain Bridge Bancorp Inc. The filing also confirms the holdings reported—18,208 shares after the transaction—are held with direct ownership, rather than through an indirect or intermediary entity.

Does this Chain Bridge Bancorp (CBNA) Form 4/A indicate any new insider trade?

No new trade is indicated. The filing explicitly explains that it corrects an administrative error in the number of shares beneficially owned following the already reported 12/15/2025 transaction, and that no transaction information itself has changed in the amendment.