Biotechnology Value Trading Fund OS LP is 10% Owner at FIVE PRIME THERAPEUTICS, INC. (FPRX). They have made 23 open-market trades across 12 companies since 2016, most recently 2025-06-30.
CIK 0001660683
20 open-market purchases totalling $110.7M since 2016, against 3 sales. Across 20 scored buys the stock is up 3.6% at ninety days, and 0.7 points behind the S&P over the same stretch.
20 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 65% | 50% | 65% |
| Avg Move | +7.6% | -2.6% | +3.6% |
| Alpha | +6.9% | -4.1% | -0.7% |
| Scored | 20 | 20 | 20 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| KYMR | BUY | 2025-06-30 | 2025-07-01 | $44.00 | $14.0M | +0.4% | -2.1% | +30.9% |
| RPTX | BUY | 2023-11-15 | 2023-11-17 | $5.15 | $7.8M | -6.2% | +17.3% | +26.6% |
| RPTX | BUY | 2023-11-02 | 2023-11-03 | $3.60 | $5.6M | +27.2% | +27.2% | +70.0% |
| OLMA | BUY | 2023-09-12 | 2023-09-14 | $9.84 | $29.6M | +1.7% | -16.6% | +0.9% |
| OLMA | BUY | 2022-06-10 | 2022-06-14 | $4.03 | $1.6M | +21.2% | +28.1% | +16.7% |
| KYMR | BUY | 2022-01-24 | 2022-01-26 | $37.76 | $20.6M | +2.8% | +0.3% | -17.3% |
| RAIN | BUY | 2021-05-21 | 2021-05-25 | $15.94 | $3.9M | -2.8% | -11.3% | -8.2% |
| CYTK | SELL | 2020-12-09 | 2020-12-11 | $18.00 | $7.8M | +4.9% | -0.1% | +1.4% |
| MRUS | BUY | 2020-01-16 | 2020-01-21 | $16.15 | $9.0M | -5.8% | +10.5% | -25.7% |
| CYTK | BUY | 2019-12-10 | 2019-12-12 | $9.45 | $5.4M | +3.7% | +26.7% | +20.5% |
| FPRX | BUY | 2019-12-09 | 2019-12-11 | $4.02 | $1.1M | -4.5% | +13.1% | -27.8% |
| FPRX | BUY | 2019-10-08 | 2019-10-08 | $3.68 | $205K | +0.8% | -1.8% | +26.5% |
| FPRX | BUY | 2019-10-07 | 2019-10-08 | $3.75 | $2.0M | +0.8% | -1.8% | +26.5% |
| FPRX | BUY | 2019-10-04 | 2019-10-08 | $3.74 | $1.6M | +0.8% | -1.8% | +26.5% |
| XOMA | BUY | 2019-05-10 | 2019-05-14 | $14.64 | $666K | +27.0% | +16.6% | +7.6% |
| XOMA | BUY | 2018-12-17 | 2018-12-19 | $14.19 | $355K | +4.4% | +7.4% | +13.5% |
| IMDZ | SELL | 2018-12-04 | 2018-12-04 | $1.83 | $3.3M | -15.7% | -23.8% | +239.0% |
| XOMA | BUY | 2018-11-15 | 2018-11-19 | $13.48 | $863K | +8.7% | -9.1% | +2.7% |
| ARQL | SELL | 2018-05-30 | 2018-06-01 | $5.00 | $5.2M | +10.2% | +15.4% | +28.4% |
| INFI | BUY | 2017-10-03 | 2017-10-05 | $1.26 | $4.0M | +82.4% | +70.9% | +56.8% |
| CTIC | BUY | 2016-01-08 | 2016-01-11 | $1.22 | $409K | -3.3% | -75.0% | -58.2% |
| CTIC | BUY | 2016-01-07 | 2016-01-11 | $1.22 | $727K | -3.3% | -75.0% | -58.2% |
| CTIC | BUY | 2016-01-07 | 2016-01-11 | $1.22 | $1.2M | -3.3% | -75.0% | -58.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| RPTX | 5,309,432 | $14.1M |
| XOMA | 200,000 | $8.1M |
| IMDZ | 370,391 | $2.2M |
| RAIN | 940,581 | $584K |
| ELDN | 252,291 | $537K |
| INFI | 790,583 | $35K |
| Total | $762.8M |
Shares reported on the most recent Form 4, priced at the 2025-07-01 close.