Position in A
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$2,582,330
-$66,302,562 QoQ
Shares Held
22,656
-95.5% QoQ
Ownership
0.008%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
22 quarters on record
Voting authority
Sole 0%
Shared 100%
None 0%
Common Shares in A Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026MARSHALL WACE, LLP holds $872,920,182 across 27 Diagnostics & Research names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | WAT |
Waters Corp /De/
|
581,332 | $218,022,752 | |
| 2 | QGEN |
Qiagen N.V.
|
3,491,480 | $136,516,866 | |
| 3 | MTD |
Mettler Toledo International Inc/
|
76,977 | $98,338,886 | |
| 4 | CRL |
Charles River Laboratories International, Inc.
|
342,995 | $77,787,835 | |
| 5 | DGX |
Quest Diagnostics Inc
|
269,760 | $57,175,631 | |
| 6 | IDXX |
Idexx Laboratories Inc /De
|
93,128 | $49,026,303 | |
| 7 | TWST |
Twist Bioscience Corp
|
396,912 | $40,834,306 | |
| 8 | NTRA |
Natera, Inc.
|
131,663 | $35,739,920 |
All Filings in A
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,582,330 | 22,656 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $68,884,892 | 506,246 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $204,319,209 | 1,591,891 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $178,327,624 | 1,511,123 | Shares | Other | 2025-08-13 | |
| 2025-03-31 | $171,802,324 | 1,468,647 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $108,398,273 | 806,895 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $31,500,180 | 212,151 | Shares | Other | 2024-11-14 | |
| 2024-06-30 | $124,072,502 | 957,128 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $93,704,511 | 643,973 | Shares | Other | 2024-05-15 | |
| 2023-12-31 | $152,839,431 | 1,099,327 | Shares | Other | 2024-02-14 | |
| 2023-09-30 | $86,601,011 | 774,468 | Shares | Other | 2023-11-14 | |
| 2023-06-30 | $85,328,438 | 709,592 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $118,878,051 | 859,318 | Shares | Other | 2023-05-15 | |
| 2022-12-31 | $215,038,369 | 1,436,942 | Shares | Other | 2023-02-14 | |
| 2022-09-30 | $197,216,211 | 1,622,511 | Shares | Other | 2022-11-14 | |
| 2022-06-30 | $155,550,099 | 1,309,675 | Shares | Other | 2022-08-15 | |
| 2022-03-31 | $143,245,504 | 1,082,487 | Shares | Other | 2022-05-16 | |
| 2021-03-31 | $56,374,257 | 443,403 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $126,928,028 | 1,071,213 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $232,836,783 | 2,306,685 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $138,754,067 | 1,570,149 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $155,953,695 | 2,177,516 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||