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Chain Bridge Bancorp

CBNA on NYSE. Market value $80m.

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Should I look at this?

We have not checked this company yet

This is not advice.

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Who owns it

1 long-term investor we follow owns it, unchanged from 1 last quarter. 71 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

6 investors own more than 5%.

  • FITZGERALD PETER G
    Insider or founder
    at least 23.8%−1.4 pts
    (filed with 20 related holders)
    Since 28 January 2026
  • 9.9%+1.0 pts
    Since 30 June 2026
  • at least 9.4%−1.4 pts
    (filed with 2 related holders)
    Since 30 June 2025
  • Royce & Associates
    Passive investor
    8.9%0.0 pts
    Since 31 December 2025
  • Philip F. Herrick, JR. and Carole L. Herrick Trust
    Passive investor
    at least 7.9%
    (filed with 1 related holder)
    Since 7 October 2024
  • at least 6.4%
    (filed with 5 related holders)
    Since 31 December 2025
  • AllianceBernstein L.P.
    Passive investor
    Sold down below 5%
    Since 30 June 2025
  • Citadel Securities LLC
    Passive investor
    Sold down below 5%
    Since 31 March 2025
  • Nuveen Asset Management, LLC
    Passive investor
    Sold down below 5%
    Since 28 February 2025

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

In the last 12 months, 3 insiders bought $93,445 of shares on the open market. 1 sold $70,880.

  • MARTINELLI MARK
    Director
    Bought
    Date
    29 July 2026
    Shares
    400
    Price
    $44.00
    Value
    $17,600
  • Basha Leigh-Alexandra
    Director
    Bought
    Date
    6 March 2026
    Shares
    400
    Price
    $35.04
    Value
    $14,016
  • Pollock James R.
    Corporate Development Officer
    Bought
    Date
    5 March 2026
    Shares
    714
    Price
    $35.25
    Value
    $25,169
  • Thompson-Byas Benita
    Director
    Sold
    Date
    3 March 2026
    Shares
    2,000
    Price
    $35.44
    Value
    $70,880
  • Basha Leigh-Alexandra
    Director
    Bought
    Date
    18 November 2025
    Shares
    400
    Price
    $30.48
    Value
    $12,192
  • Basha Leigh-Alexandra
    Director
    Bought
    Date
    18 November 2025
    Shares
    400
    Price
    $30.48
    Value
    $12,192
  • MARTINELLI MARK
    Director
    Bought
    Date
    11 November 2025
    Shares
    430
    Price
    $28.55
    Value
    $12,277

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 20 Mar 2026, plus the 10-Q filed 11 Aug 2026 and 5 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.