TRXB · Insider trading · 13F holders · Congress trades
TRex Bio, Inc. (TRXB)
Who is buying and selling TRXB: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 0
- Insider buys, 90 days
- $3.8M
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
TRXB at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 TRXB insiders filed 2 open-market purchases worth $3.8M on SEC Form 4.
- No 13F filer reports TRXB among its 50 largest positions.
- No member of Congress has disclosed a trade in TRXB.
- TRXB last closed at $13.52 on Oct 29, 2026.
TRXB insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 TRXB insiders filed 2 open-market purchases worth $3.8M on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 15, 2026 | Alexandria Venture Investments, LLC | 10% Owner | Buy | 178,571 | $14.00 | $2.5M | SEC |
| Oct 13, 2026 | Svlsf Vi, LLC | 10% Owner | Buy | 92,857 | $14.00 | $1.3M | SEC |
Who owns TRXB? Hedge funds and superinvestors
No 13F filer reports TRXB among its 50 largest positions.
TRXB stock trades by members of Congress
No member of Congress has disclosed a trade in TRXB.
Analysis mentioning TRXB
Posts from the blog that cover TRex Bio, Inc., newest first.
TRXB questions and answers
Are insiders buying TRXB stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 TRXB insiders filed 2 open-market purchases worth $3.8M on SEC Form 4.
Which hedge funds own TRXB?
No 13F filer reports TRXB among its 50 largest positions.
Has Congress traded TRXB?
No member of Congress has disclosed a trade in TRXB.
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Free to use with a link back. The data updates every filing day.