EcoR1 Capital, LLC is Director & 10% Owner at Zymeworks Inc. (ZYME). They have made 47 open-market trades across 16 companies since 2014, most recently 2026-05-07.
CIK 0001587114
37 open-market purchases totalling $465.4M since 2014, against 10 sales. Across 36 scored buys the stock is down 1.4% at ninety days, and 4.3 points behind the S&P over the same stretch.
37 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 35% | 38% | 42% |
| Avg Move | -4.7% | -1.2% | -1.4% |
| Alpha | -4.7% | -2.9% | -4.3% |
| Scored | 37 | 37 | 36 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 60% | 50% |
| Avg Move | +2.2% | -8.8% | -6.7% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ATRA | BUY | 2026-05-07 | 2026-05-11 | $9.35 | $4.7M | -0.3% | +6.1% | -9.0% |
| TRAX | SELL · Routine | 2026-04-20 | 2026-04-22 | $13.81 | $65.0M | +7.5% | -9.6% | +96.3% |
| AKTS | BUY | 2026-01-12 | 2026-01-12 | $18.00 | $40.0M | -6.1% | -21.6% | -24.6% |
| ADAP | SELL | 2025-07-28 | 2025-07-30 | $0.11 | $13.2M | -11.0% | -38.9% | N/A |
| ZYME | BUY | 2025-05-15 | 2025-05-19 | $11.47 | $1.3M | -5.7% | +4.2% | +15.9% |
| ITOS | BUY | 2025-05-14 | 2025-05-16 | $7.70 | $51.0M | +24.3% | +25.2% | +25.3% |
| PRTA | SELL | 2025-05-02 | 2025-05-06 | $8.09 | $101.7M | -4.3% | -32.5% | -7.5% |
| ZYME | BUY | 2025-04-16 | 2025-04-18 | $11.31 | $2.9M | +13.4% | +3.1% | +26.2% |
| ZYME | BUY | 2025-03-31 | 2025-04-02 | $11.71 | $2.1M | -4.9% | +12.0% | +7.3% |
| ZYME | BUY | 2025-03-25 | 2025-03-27 | $12.61 | $2.5M | -21.3% | +2.3% | +1.0% |
| ZYME | BUY | 2025-03-20 | 2025-03-24 | $12.92 | $3.3M | -10.9% | -5.6% | -5.5% |
| ZYME | BUY | 2025-03-17 | 2025-03-19 | $12.51 | $4.3M | -7.4% | -8.6% | -4.8% |
| ZYME | BUY | 2025-01-16 | 2025-01-21 | $13.89 | $3.9M | +1.4% | -2.6% | -18.4% |
| ZYME | BUY | 2025-01-13 | 2025-01-15 | $13.60 | $3.8M | -0.5% | +2.6% | -25.2% |
| ZYME | BUY | 2025-01-08 | 2025-01-10 | $13.22 | $6.0M | +10.6% | +5.9% | -29.6% |
| ZYME | BUY | 2024-12-30 | 2025-01-02 | $14.65 | $10.6M | -14.7% | -10.7% | -27.6% |
| ANAB | BUY | 2024-12-30 | 2025-01-02 | $12.92 | $2.2M | +10.3% | +18.7% | +35.2% |
| ZYME | BUY | 2024-12-24 | 2024-12-27 | $14.44 | $3.8M | -9.5% | -1.1% | -14.4% |
| ZYME | BUY | 2024-12-19 | 2024-12-26 | $13.98 | $35.1M | -2.7% | -0.5% | -14.9% |
| TNGX | SELL | 2024-11-06 | 2024-11-08 | $3.13 | $16.9M | +39.7% | +9.9% | +11.6% |
| ANAB | BUY | 2024-08-14 | 2024-08-16 | $36.50 | $10.0M | +9.5% | +15.3% | -39.9% |
| ZYME | BUY | 2023-06-16 | 2023-06-21 | $8.12 | $54.4M | -0.8% | -9.0% | -20.2% |
| ZYME | BUY | 2023-03-28 | 2023-03-30 | $8.00 | $1.6M | +5.8% | -5.3% | -3.5% |
| ZYME | BUY | 2023-01-19 | 2023-01-23 | $9.76 | $4.6M | -6.3% | -13.2% | -1.0% |
| ZYME | BUY | 2023-01-13 | 2023-01-18 | $9.84 | $9.7M | -8.6% | -17.4% | -4.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| NUVB | 6,735,790 | $29.8M |
| ATRA | 1,552,000 | $14.8M |
| AKUS | 799,984 | $10.6M |
| VYGR | 3,961,507 | $7.5M |
| ADAP | 130,492,680 | $7.2M |
| ODT | 5,701,669 | $6.4M |
| GNVC | 745,874 | $5.4M |
| AKTS | 347,305 | $5.2M |
| SURF | 4,701,081 | $5.0M |
| PANA | 390,000 | $4.0M |
| CRVS | 81,077 | $772K |
| Total | $1.7B |
Shares reported on the most recent Form 4, priced at the 2026-05-11 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Scored | 10 | 10 | 8 |