Position in STOK
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$24,049,200
+$20,793,200 QoQ
Shares Held
735,000
+635.0% QoQ
Ownership
1.14%
of shares outstanding
% of Portfolio
1.19%
of 13F equity value
Holder Rank
#22
of 198 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in STOK Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026EcoR1 Capital, LLC holds $1,935,887,028 across 29 Biotechnology names. STOK ranks #10 (1.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZYME |
Zymeworks Inc.
|
22,970,388 | $600,445,942 | |
| 2 | ANAB |
Anaptysbio, Inc
|
7,880,094 | $531,906,345 | |
| 3 | AKTS |
Aktis Oncology, Inc.
|
4,824,469 | $155,492,635 | |
| 4 | CGON |
CG Oncology, Inc.
|
1,494,300 | $106,170,015 | |
| 5 | CRSP |
CRISPR Therapeutics AG
|
1,389,276 | $75,771,113 | |
| 6 | ORIC |
Oric Pharmaceuticals, Inc.
|
6,728,116 | $72,865,496 | |
| 7 | TRAX |
First Tracks Biotherapeutics, Inc.
|
3,174,519 | $63,871,322 | |
| 8 | LKFT |
Lakefront Biotherapeutics NV
|
1,667,119 | $49,980,227 |
All Filings in STOK
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $24,049,200 | 735,000 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $3,256,000 | 100,000 | Shares | Sole | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||