TRXB: TRex Bio, Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
3 open-market buys totaling $3.80M and 0 sales totaling - in the last 180 days.
Insider buys
| Score | Ticker | Company | Insider | Role | Trade date | Value | Holding + | Cluster |
|---|---|---|---|---|---|---|---|---|
| 49 | TRXB | TRex Bio, Inc. | Alexandria Venture Investments, Llc | 10% Owner | 2026-10-13 | $2.50M | 15% | 2 insiders |
| 59 | TRXB | TRex Bio, Inc. | Svlsf Vi, Llc / Sv Life Sciences Fund Vi (Gp), L.P. / Sv Life Sciences Fund Vi, L.P. | 10% Owner | 2026-10-08 | $1.26M | 72% | 2 insiders |
| 50 | TRXB | TRex Bio, Inc. | Svlsf Vi, Llc / Sv Life Sciences Fund Vi (Gp), L.P. / Sv Life Sciences Fund Vi, L.P. | 10% Owner | 2026-10-08 | $43K | 72% | 2 insiders |
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-10-16 | New 13G stake | PFIZER INC. (13-5315170) | 7.20% | SEC | |
| 2026-10-16 | New 13D stake | ELI LILLY & Co | 19.90% | SEC | |
| 2026-10-16 | New 13D stake | SV Biotech Crossover Opportunities Fund LP | 7.00% | SEC | |
| 2026-10-15 | New 13G stake | Johnson & Johnson Innovation - JJDC, Inc. | 5.30% | SEC |
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