TRex Bio, Inc. (TRXB) has 9 SEC Form 4 insider filings on record in the last 90 days. That includes 2 insider purchases totalling $3.8M. Most recent filing: Oct. 15, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
|---|---|---|---|---|---|---|
| Oct. 15, 2026 filed Oct. 13, 2026 | Alexandria Venture Investments, LLC 10% Owner | +$2,499,994 | 5,860,429 | — | No | |
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| Oct. 13, 2026 | MARCUS JOEL S Director | $0 | 203,699 | — | No | |
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| Oct. 13, 2026 filed Oct. 8, 2026 | SVLSF VI, LLC 10% Owner | +$1,299,998 | 5,672,043 | — | No | |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
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