Position in GH
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$27,778,054
+$10,291,074 QoQ
Shares Held
185,150
+8.1% QoQ
Ownership
0.138%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#97
of 593 holders
Holding Since
Mar 2020
16 quarters on record
Voting authority
Sole 0%
Shared 100%
None 0%
Common Shares in GH 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. GH ranks #10 (3.2% of the industry book) .
| # | 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 GH
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $27,778,054 | 185,150 | Shares | Other | 2026-08-13 | |
| 2025-12-31 | $17,486,980 | 171,206 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $15,076,798 | 241,306 | Shares | Other | 2025-11-13 | |
| 2025-03-31 | $7,520,305 | 176,533 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $980,196 | 32,085 | Shares | Other | 2025-02-13 | |
| 2024-03-31 | $2,473,083 | 119,878 | Shares | Other | 2024-05-15 | |
| 2023-06-30 | $12,649,321 | 353,333 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $482,864 | 20,600 | Shares | Other | 2023-05-15 | |
| 2022-12-31 | $217,436 | 7,994 | Shares | Other | 2023-02-14 | |
| 2021-12-31 | $395,479 | 3,954 | Shares | Other | 2022-02-14 | |
| 2021-06-30 | $41,753,174 | 336,204 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $7,218,971 | 47,291 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $122,034,152 | 946,882 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $104,132,235 | 931,582 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $123,161,992 | 1,518,082 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $47,669,596 | 684,908 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||