Chain Bridge Bancorp director acquires 18,020 shares at $36.46

Chain Bridge Bancorp Inc. reported an insider stock transaction by one of its directors.

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Rhea-AI Filing Summary

Chain Bridge Bancorp Inc. reported an insider stock transaction by one of its directors. On December 15, 2025, the director acquired 18,020 shares of Class A common stock in a transaction coded C for conversion at a price of $36.46 per share.

After this transaction, the director directly beneficially owns 18,020 shares of Chain Bridge Bancorp Class A common stock, according to the Form 4 filing.

Insider Trade Summary

Conversion: 18,020 shares

Conversion 1 txn

Insider Thompson-Byas Benita

Role Director

Type	Security	Shares	Price	Value
Conversion	Class A Common Stock	18,020	$36.46	$657K

Holdings After Transaction: Class A Common Stock — 18,020 shares (Direct)

FAQ

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What insider transaction did Chain Bridge Bancorp (CBNA) disclose?

The company disclosed that a director acquired 18,020 shares of its Class A common stock in a conversion transaction on December 15, 2025.

How many Chain Bridge Bancorp (CBNA) shares were acquired and at what price?

The director acquired 18,020 shares of Chain Bridge Bancorp Class A common stock at a price of $36.46 per share.

What type of security was involved in the Chain Bridge Bancorp (CBNA) insider transaction?

The transaction involved Chain Bridge Bancorp Inc. Class A common stock.

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

The reporting person is identified as a director of Chain Bridge Bancorp Inc.

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

Following the reported transaction, the director directly beneficially owns 18,020 shares of Chain Bridge Bancorp Class A common stock.

When did the Chain Bridge Bancorp (CBNA) insider transaction take place?

The insider transaction took place on December 15, 2025, as reported in Table I of the Form 4.

Who signed the Chain Bridge Bancorp (CBNA) Form 4?

The Form 4 was signed by Emily E. Manbeck as attorney-in-fact on December 15, 2025.

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Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 12/15/2025 - 12:05 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^*

Thompson-Byas Benita

(Last)

(First)

(Middle)

1445-A LAUGHLIN AVENUE

(Street)

MCLEAN

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)

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)
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)
Class A Common Stock	12/15/2025		C		18,020	A	$36.46	18,020	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)
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:

	/s/ Emily E. Manbeck attorney-in-fact	12/15/2025
	** 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.

Source: View Original Filing on SEC EDGAR