Biotechnology Value Trading Fund OS LP
CIK 1660683 · last filed 2025-05-20
Biotechnology Value Trading Fund OS LP is a corporate insider who has filed 20 SEC Form 4 insider transactions across 14 companies since 2017. The most recent filing shows the insider sold $106.4M of XOMAP on May 20, 2025. Across all open-market trades the lifetime net is −$1.22B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $492.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$492.11M
14
20
-$1.22B
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| XOMAP | 1,322,758 | $25.46 | $33.68M | -$106.43M | 1 | 2025-05-20 | |
| KYMR | Director | 1,888,351 | $86.20 | $162.79M | $0 | 1 | 2023-06-20 |
| GPCR | 0 | $42.93 | $0 | $0 | 1 | 2023-05-12 | |
| Repare Therapeutics Inc. (RPTX) Delisted | 3,299,906 | $2.65 | $8.74M | $18.99M | 1 | 2022-06-15 | |
| CGEM | 364,161 | $13.70 | $4.99M | $82.65M | 1 | 2022-06-03 | |
| CTI BIOPHARMA CORP (CTIC) Delisted | 3,102,435 | $9.09 | $28.20M | $50.00M | 2 | 2021-04-05 | |
| Merus N.V. (MRUS) Delisted | 3,513,335 | $90.00 | $316.20M | $209.06M | 1 | 2021-01-25 | |
| CYTK | 2,777,320 | $70.15 | $194.83M | $0 | 1 | 2020-11-20 | |
| FIVE PRIME THERAPEUTICS, INC. (FPRX) Delisted | 670,695 | $38.00 | $25.49M | -$1.49B | 2 | 2020-11-13 | |
| CRESCENT BIOPHARMA, INC. (GLYC) Delisted | 3,206,195 | $15.70 | $50.34M | $25.65M | 1 | 2020-11-03 | |
| XOMA | 2,022,816 | $41.79 | $84.53M | $4.31M | 3 | 2020-09-10 | |
| CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted | 952,859 | $8.37 | $7.98M | -$28.94M | 1 | 2019-06-12 | |
| XENE | 216,694 | $52.10 | $11.29M | $0 | 1 | 2018-03-29 | |
| INFINITY PHARMACEUTICALS, INC. (INFI) Delisted | 2,968,487 | $0.04 | $132.7K | $14.06M | 1 | 2017-10-05 |
Recent Filings
20 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-05-20 | XOMAP | Sell (S) | −3,927,230 | -$106.43M | EDGAR |
| 2025-05-19 | — | Disp (D) | −163,128,720 | $0 | |
| 2023-06-28 | — | Mixed | −88,561,600 | -$805.91M | |
| 2023-06-20 | KYMR | Grant (A) | — | $0 | EDGAR |
| 2023-05-12 | GPCR | Other (J) | −74,105,180 | $0 | EDGAR |
| 2022-06-15 | Repare Therapeutics Inc. (RPTX) Delisted | Buy (P) | +1,491,610 | $18.99M | EDGAR |
| 2022-06-03 | CGEM | Buy (P) | +7,513,960 | $82.65M | EDGAR |
| 2021-04-05 | CTI BIOPHARMA CORP (CTIC) Delisted | Buy (P) | +20,000,000 | $50.00M | EDGAR |
| 2021-03-12 | CTI BIOPHARMA CORP (CTIC) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-01-25 | Merus N.V. (MRUS) Delisted | Buy (P) | +8,446,800 | $209.06M | EDGAR |