Position in ANAB
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$531,906,345
+$94,876,726 QoQ
Shares Held
7,880,094
-33.3% QoQ
Ownership
27.1%
of shares outstanding
% of Portfolio
26.38%
of 13F equity value
Holder Rank
#1
of 213 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ANAB 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. ANAB ranks #2 (27.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZYME |
Zymeworks Inc.
|
22,970,388 | $600,445,942 | |
| 2 | ANAB |
Anaptysbio, Inc
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|
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 ANAB
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $531,906,345 | 7,880,094 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $437,029,619 | 7,880,094 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $382,026,957 | 7,880,094 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $241,288,084 | 7,880,094 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $174,938,086 | 7,880,094 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $146,490,553 | 7,880,094 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $104,244,845 | 7,873,448 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $261,131,976 | 7,794,996 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $188,477,237 | 7,521,024 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $169,373,084 | 7,521,024 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $161,100,334 | 7,521,024 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $135,077,214 | 7,521,024 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $152,977,628 | 7,521,024 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $163,657,858 | 7,521,024 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $233,076,533 | 7,521,024 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $191,861,698 | 7,521,024 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $152,676,411 | 7,521,024 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $186,069,757 | 7,521,024 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $261,355,960 | 7,521,024 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $203,970,170 | 7,521,024 | Shares | Sole | 2021-11-22 | |
| 2021-06-30 | $195,020,528 | 7,521,024 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $154,117,854 | 7,151,624 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $69,301,304 | 3,223,324 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $47,543,867 | 3,223,324 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $68,695,659 | 3,075,014 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $42,898,877 | 3,036,014 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||