Position in ANAB
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$437,030,013
+$55,003,056 QoQ
Shares Held
7,880,094
0.0% QoQ
Ownership
27.1%
of shares outstanding
% of Portfolio
18.68%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ANAB Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026EcoR1 Capital, LLC holds $2,284,236,973 across 26 Biotechnology names. ANAB ranks #2 (19.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ZYME |
Zymeworks Inc.
|
22,970,388 | $575,178,515 | |
| 2 | ANAB |
Anaptysbio, Inc
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|
7,880,094 | $437,030,013 | |
| 3 | JAZZ |
Jazz Pharmaceuticals plc
|
1,706,469 | $322,607,964 | |
| 4 | CNTA |
Centessa Pharmaceuticals plc
|
6,000,000 | $238,320,000 | |
| 5 | CRNX |
Crinetics Pharmaceuticals, Inc.
|
4,288,120 | $155,744,518 | |
| 6 | AKTS |
Aktis Oncology, Inc.
|
4,824,469 | $86,309,750 | |
| 7 | ORIC |
Oric Pharmaceuticals, Inc.
|
6,728,116 | $85,245,229 | |
| 8 | CGON |
CG Oncology, Inc.
|
1,102,000 | $74,583,360 |
All Filings in ANAB
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $437,030,013 | 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 | $241,288,478 | 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 | $146,490,947 | 7,880,094 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $104,244,451 | 7,873,448 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $261,132,366 | 7,794,996 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $188,476,861 | 7,521,024 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $169,373,460 | 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 | $135,077,591 | 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 | $163,657,482 | 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 | $191,861,322 | 7,521,024 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $152,676,787 | 7,521,024 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $186,070,133 | 7,521,024 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $261,355,584 | 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 | $195,020,152 | 7,521,024 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $154,117,497 | 7,151,624 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $69,301,466 | 3,223,324 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $47,544,029 | 3,223,324 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $68,695,812 | 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. | ||||||