Position in SRRK
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$52,123,117
+$35,911,088 QoQ
Shares Held
1,060,275
+188.1% QoQ
Ownership
0.885%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
17 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 100.ToString("F0")%
None 0.ToString("F0")%
Common Shares in SRRK Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026MARSHALL WACE, LLP holds $2,764,425,276 across 279 Biotechnology names. SRRK ranks #10 (1.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,099,318 | $363,731,344 | |
| 2 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
317,058 | $141,579,078 | |
| 3 | INCY |
Incyte Corp
|
1,253,138 | $117,945,347 | |
| 4 | RPRX |
Royalty Pharma plc
|
2,120,692 | $101,729,594 | |
| 5 | RCUS |
Arcus Biosciences, Inc.
|
3,761,437 | $81,247,039 | |
| 6 | PTGX |
Protagonist Therapeutics, Inc
|
628,075 | $66,199,104 | |
| 7 | ROIV |
Roivant Sciences Ltd.
|
2,246,943 | $62,240,320 | |
| 8 | COGT |
Cogent Biosciences, Inc.
|
1,600,168 | $61,590,466 |
All Filings in SRRK
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $52,123,117 | 1,060,275 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $16,212,029 | 368,037 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $36,268,556 | 973,914 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $58,104,277 | 1,640,437 | Shares | Other | 2025-08-13 | |
| 2025-03-31 | $52,574,894 | 1,635,300 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $127,300,532 | 2,945,408 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $1,705,023 | 212,862 | Shares | Other | 2024-11-14 | |
| 2024-06-30 | $4,059,083 | 487,285 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $751,674 | 42,324 | Shares | Other | 2024-05-15 | |
| 2023-03-31 | $1,948,200 | 243,525 | Shares | Other | 2023-05-15 | |
| 2022-12-31 | $1,849,684 | 204,385 | Shares | Other | 2023-02-14 | |
| 2022-09-30 | $1,533,463 | 221,279 | Shares | Other | 2022-11-14 | |
| 2022-06-30 | $1,690,799 | 307,978 | Shares | Other | 2022-08-15 | |
| 2022-03-31 | $834,498 | 64,740 | Shares | Other | 2022-05-16 | |
| 2021-09-30 | $865,685 | 26,217 | Shares | Sole | 2021-11-15 | |
| 2021-03-31 | $268,244 | 5,295 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $466,615 | 9,615 | Shares | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||