Chain Bridge Bancorp, Inc.
Ownership
Ownership Structure
Who owns Chain Bridge Bancorp, Inc. (CBNA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.0% of the shares are freely tradable; institutional investors hold 65.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Hingham Institution for Savings | 5.09 | 334,137 | +8.3 | 06/30/2026 |
| FJ Capital Management LLC | 4.48 | 293,788 | +0.0 | 06/30/2026 |
| Royce & Associates, LP | 4.25 | 278,901 | +0.3 | 03/31/2026 |
| Gator Capital Management, LLC | 3.34 | 219,365 | +4.8 | 06/30/2026 |
| Vanguard Capital Management, LLC | 1.88 | 123,182 | +0.0 | 03/31/2026 |
| BlackRock Inc | 1.82 | 119,626 | -1.2 | 03/31/2026 |
| Endeavour Capital Advisors Inc | 1.27 | 83,256 | +0.0 | 06/30/2026 |
| Beartown Capital Management, LLC | 1.16 | 75,794 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Royce Micro-Cap Trust | 1.97 | 128,983 | +8.5 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.34 | 88,229 | +0.0 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Martinelli Mark | Director | 3,000 | 141,000 $ | Jul 29, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 29, 2026 | Martinelli Mark | Director | Buy | 400 | 44.00 | 17,600 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.