1.Purpose

This Insider Trading Policy (this “Policy”) of Chain Bridge Bancorp, Inc. (the “Company” and, together with Chain Bridge Bank, N.A., “Chain Bridge”) is to promote compliance with securities laws and regulations prohibiting insider trading activities and to provide guidance on the proper procedures for permitted trading activities.

2.Summary

3.Material Non-public Information

“Material” information generally means information which, if disclosed, could reasonably have an effect on the price of a company’s securities or which is likely to be considered important by a reasonable investor in determining whether to buy or sell such securities (or otherwise alter his or her market behavior). However, there is no precise definition, and the question of whether information is material is subjective and often judged in hindsight. As a result, individuals covered under this Policy are encouraged to take a broad and cautious view when evaluating whether a particular piece of information is “material.”

•acquisitions of other companies, dispositions of existing operations or a new joint venture or termination thereof;

•internal financial projections or any change to previously reported projections or financial results, including earnings, earnings estimates or operating results;

•adoption or changes in dividend policy;

•a change in senior executive management or board composition;

•a change in control of Chain Bridge;

•actual or threatened significant litigation, arbitration, regulatory proceedings or investigations, or the resolution of any of the foregoing;

•impending bankruptcy or financial liquidity problems;

•material cybersecurity incidents;

•significant compliance and/or control matters;

•significant new contracts or changes in existing contractual relationships or loss of business; or

•other information which could result in substantial market share and/or revenue gains or losses.

“Non-public” information is information that has not yet been the subject of an official announcement (for example, in a press release or a filing with the Securities and Exchange Commission (the “SEC”)) or otherwise sufficiently publicized and widely reported in the media. Information does not cease to be “non-public” until investors have had a reasonable period of time to absorb and react to the information (often considered to be one or two trading days after public release of the information, depending on the circumstances). For purposes of this Policy, information does not cease to be “non-public” as a result of being the subject of rumors or other unofficial statements in the marketplace. Information related to Chain Bridge can be “non-public” even where such information was obtained by a Chain Bridge employee from a source outside of Chain Bridge.

4.Covered Persons

This Policy applies to all Chain Bridge directors, officers, employees, consultants, contract workers and temporary staff (“Covered Persons”). All Covered Persons are responsible for ensuring compliance with this Policy by:

•their family members who reside with them,

•their family members who do not live in their household but whose transactions in securities are directed by such Covered Person or are subject to such Covered Person’s influence or control (such as parents or children who consult with you before they trade in securities), and

•any entities whose transactions in securities are directed by such Covered Person or are subject to such Covered Person’s influence or control (such as a trust or other entity) also comply with this Policy.

5.Prohibition on Certain Activities

Securities laws and this Policy prohibit an individual who is in possession of material non-public information related to Chain Bridge (referred to hereafter as an “Insider”) from (i) trading in any securities on the basis of such material non-public information or (ii) “tipping” such material non-public information to another person. Chain Bridge is also prohibited from trading at any time in any Chain Bridge securities on the basis of material non-public information, consistent with applicable law.

The fact that an Insider may have relied on factors other than material non-public information in purchasing or selling securities while in the possession of material non-public information is not an exception to this prohibition. It is no excuse that the Insider would have traded anyway, considered himself/herself under a duty (for example, as a trustee) to trade or to disclose information or did not intend to defraud anyone. If an Insider is in possession of material non-public information, he or she must refrain from any transaction in the subject securities and from tipping such material non-public information to any other person.

Though its definition is complex under securities laws and regulations, for purposes of this Policy a “security” should be understood to mean any class of common stock (e.g., the Company’s Class A common stock), or any preferred stock that is listed on any national securities exchange or any put, call, option contract, hedge or other derivative securities (e.g., the Company’s Class B common stock) relating to any such stock, of a publicly traded company.

Furthermore, this Policy should be understood to extend to a number of market activities. “Trading” for the purposes of this Policy includes not just buying or selling securities in the open market, but also executing a “cashless” option exercise, writing or purchasing a put or call option, entering into any “short sale” or the execution of any of such actions pursuant to prearranged instructions (e.g., limit orders) regardless of when such instruction was given. Gifts of Chain Bridge securities are also subject to the restrictions of this Policy. You may not gift Chain Bridge securities to others while in possession of material non-public information, and Designated Insiders and Pre-clearance Persons (each as defined below) must comply with the applicable blackout and pre-clearance requirements described below before gifting Chain Bridge securities.

As discussed below, certain trading activities involving Chain Bridge securities are entirely prohibited under this Policy, regardless of whether or not an individual is in possession of material non-public information. Please see below for a list of market activities which are not considered “trading” for the purposes of this Policy.

Insiders may not give, or “tip,” such information to an outsider for the improper purpose of exploiting the information for personal gain. “Tipping” is the unauthorized communication

of material, non-public information. A “tipper” is a person who divulges such information; a “tippee” is one who receives such information.

•same-day or short-term trading (i.e., “day trading”);

•selling securities that the seller does not own or a sale that is completed by delivery of borrowed securities (i.e., a “short sale”);

•purchasing or holding Chain Bridge securities on margin;

•pledging Chain Bridge securities as collateral for a loan; or

•entering into any derivative (including purchasing, selling or writing put or call options, forward contracts, equity swaps, performance swaps or any similar agreements on Chain Bridge securities) or similar transactions.

6.Blackout Policy and Pre-clearance Procedures

Under the Company’s blackout policy, certain specific periods of the year are designated as “no trading periods” or “blackout periods” with respect to the Company’s securities for all Designated Insiders. These blackout periods generally begin four weeks prior to a quarter-end and end at market open of the first full trading day following the date of release of Chain Bridge’s earnings for such calendar quarter. However, blackout periods are subject to adjustment by the Corporate Secretary and may be started early or extended.

Chain Bridge has imposed mandatory trading pre-clearance procedures on certain Designated Insiders (referred to hereafter as “Pre-clearance Persons”), each of whom is aware (or will be made aware by the Company’s Corporate Secretary as soon as reasonably practicable after he or she has been designated a Pre-clearance Person) that he or she is subject to such restrictions. All Pre-clearance Persons must receive pre-clearance from the Company’s Corporate Secretary prior to effecting any transaction in Chain Bridge securities. Such pre-clearance is valid for two business days but terminates immediately if the Pre-clearance Person acquires any material, non-public information. Additionally, no limit order for any Pre-clearance Person can extend beyond the pre-clearance period.

The following categories of Designated Insider are also Pre-Clearance Persons: executive officers and directors of Chain Bridge and members of Fitzgerald family required to file reports with the SEC under Section 16 of the Securities Exchange Act of 1934 (the “Exchange Act”).

7.Certain Exceptions to Trading Prohibitions

This Policy generally does not prohibit buying or selling investments in exchange-traded funds and publicly traded mutual funds.

    The blackout policies and pre-clearance procedures do not apply to trades pursuant to a previously established and approved Rule 10b5-1(c) trading plan. A “Rule 10b5-1(c) trading plan” is a written trading arrangement that complies with all of the requirements of Rule 10b5-1(c) under the Exchange Act. A Covered Person must obtain prior approval from the Corporate Secretary before entering into, amending or terminating a Rule 10b5-1(c) trading plan.

8.Consequences and Penalties

9.Questions