EcoR1 Capital, LLC
EcoR1 Capital, LLC reported 33 positions worth $2.06B as of June 30, 2026 (13F filed August 14, 2026). Largest holding: ZYME (29.2%).
| # | Symbol | Company | Type | Value ↓ | % Port. | Shares | 1Y | YTD |
|---|---|---|---|---|---|---|---|---|
| ▸ 1 | ZYME | SH | $600.4M | 29.19% | 22,970,388 | — | — | |
| ▸ 2 | ANAB | SH | $531.9M | 25.86% | 7,880,094 | — | — | |
| ▸ 3 | AKTS | SH | $155.5M | 7.56% | 4,824,469 | — | — | |
| ▸ 4 | CGON | SH | $106.2M | 5.16% | 1,494,300 | — | — | |
| ▸ 5 | ETON | SH | $78.6M | 3.82% | 2,171,938 | — | — | |
| ▸ 6 | CRSP | SH | $75.8M | 3.68% | 1,389,276 | — | — | |
| ▸ 7 | ORIC | SH | $72.9M | 3.54% | 6,728,116 | — | — | |
| ▸ 8 | TRAX | SH | $63.9M | 3.11% | 3,174,519 | — | — | |
| ▸ 9 | LKFT | SH | $50.0M | 2.43% | 1,667,119 | — | — | |
| ▸ 10 | NGNE | SH | $40.0M | 1.94% | 1,271,342 | — | — |
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Frequently Asked Questions
What stocks does EcoR1 Capital, LLC hold as of Q2 2026?
EcoR1 Capital, LLC reported 33 positions worth $2.06B in its Q2 2026 13F filing. Largest positions: ZYME (29.2%), ANAB (25.9%), AKTS (7.6%), CGON (5.2%) and ETON (3.8%).
What did EcoR1 Capital, LLC buy in Q2 2026?
No previous quarter is available yet; the comparison appears with the next filing.
What did EcoR1 Capital, LLC sell in Q2 2026?
No previous quarter is available yet.
13F data shows quarter-end positions, is delayed by up to 45 days and covers only long positions in US-listed securities; short positions, most derivatives and non-US assets are not reported.