EcoR1 Capital, LLC bought $636k of ZYME
director, owner at Zymeworks Inc.. 55,421 shares at an average of $11.47, traded May 15, 2025, filed May 19, 2025.
Score components
- +15RoleDirector
- +20Trade size$636k at market
- -5Relative to holdingsUnder 1% of holdings (0.3%)
- +8Price context34% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- +5Repeat buying8 buys in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0000935836-25-000389, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 15, 2025 | POpen-market purchase Common Stockindirect: See Note | +49,502 | $11.43 | $566k | 17,877,989 | May 19, 2025 |
| May 19, 2025 | POpen-market purchase Common Stockindirect: See Note | +5,919 | $11.78 | $70k | 17,883,908 | May 19, 2025 |
Related signals
Other insiders at Zymeworks Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 25Weak | ZYMEsell Zymeworks Inc. | Adam Schayowitz EVP, Head of R&D | $358k 13,832 shares | -37% | |
| 48Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $1.5M 128,713 shares | +1% | |
| 63Notable | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $3.6M 317,208 shares | +2% | |
| 58Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $1.5M 127,415 shares | +1% | |
| 44Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $1.2M 97,349 shares | +1% | |
| 44Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $1.6M 127,198 shares | +1% | |
| 49Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $2.9M 228,463 shares | +1% | |
| 66Notable | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $13M 1,081,980 shares | +7% | |
| 44Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $2.0M 141,429 shares | +1% | |
| 49Moderate | ZYMEbuy Zymeworks Inc. | EcoR1 Capital, LLC director, owner | $2.3M 167,654 shares | +1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.