W. Donald Brunson - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
W. Donald Brunson is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $58K.
Profile
W. Donald Brunson is a corporate insider at Third Coast Bancshares, Inc. (TCBX). Brunson has reported 4 insider filings with the SEC since 2025. The most recent filing was in March 2026.
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- Third Coast Bancshares, Inc.
Trading Pattern
InsiderAlpha's records for W. Donald Brunson go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role W. Donald Brunson has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Insider at Third Coast Bancshares, Inc. (TCBX) - 2 filings, 2025 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-12-02 | TCBX | Third Coast Bancshares, Inc. | S - Open-market sale | 1.4K | $38.55 | $54K |
| 2025-12-02 | TCBX | Third Coast Bancshares, Inc. | S - Open-market sale | 100 | $38.51 | $4K |
Most Active Insiders Right Now
W. Donald Brunson has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- Magnetar Financial LLC - $8.53B of CRWV open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $7.98B of SVRE open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
- SGF FANG Holdings, LP - $2.04B of FANG open-market activity in the last 90 days
- BCP 8 Holdings Mozart Manager L.L.C. - $1.22B of MDLN open-market activity in the last 90 days
- BX Mozart ML-2 Holdco L.P. - $1.22B of MDLN open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Long Wan
- Kelcy L. Warren
- V. Prem Et Al Watsa
- Alan Waxman
- Patrick Whitesell
- Gregg Williams
- Stephen T. Wills
- WINMILL CO. INC
Frequently Asked Questions
Who is W. Donald Brunson?
W. Donald Brunson is a corporate insider at Third Coast Bancshares, Inc. (TCBX). Brunson has reported 4 insider filings with the SEC since 2025. The most recent filing was in March 2026.…
Has W. Donald Brunson been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($58K) across all tracked filings.
Where can I see all of W. Donald Brunson's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live W. Donald Brunson profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.