Position in ATRC
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$37,322,632
-$4,545,826 QoQ
Shares Held
1,333,904
-9.1% QoQ
Ownership
2.62%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#10
of 250 holders
Holding Since
Dec 2020
18 quarters on record
Voting authority
Sole 0%
Shared 100%
None 0%
Common Shares in ATRC Over Time
Shares Held
Position Value (USD)
Position in Medical Instruments & Supplies
Healthcare · as of Jun 30, 2026MARSHALL WACE, LLP holds $588,908,935 across 29 Medical Instruments & Supplies names. ATRC ranks #7 (6.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AVTR |
Avantor, Inc.
|
13,130,158 | $129,988,562 | |
| 2 | BAX |
Baxter International Inc
|
4,857,267 | $103,556,932 | |
| 3 | ISRG |
Intuitive Surgical Inc
|
110,089 | $43,780,193 | |
| 4 | ALC |
Alcon Inc
|
623,516 | $41,837,923 | |
| 5 | XRAY |
DENTSPLY SIRONA Inc.
|
3,800,116 | $40,319,230 | |
| 6 | RGEN |
Repligen Corp
|
282,107 | $38,490,678 | |
| 7 | ATRC |
AtriCure, Inc.
This page
|
1,333,904 | $37,322,632 | |
| 8 | WST |
West Pharmaceutical Services Inc
|
83,578 | $30,004,502 |
All Filings in ATRC
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $37,322,632 | 1,333,904 | Shares | Other | 2026-08-13 | |
| 2026-03-31 | $41,868,458 | 1,467,524 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $36,136,199 | 913,453 | Shares | Other | 2026-02-13 | |
| 2025-09-30 | $19,710,812 | 559,172 | Shares | Other | 2025-11-13 | |
| 2025-06-30 | $32,941,975 | 1,005,248 | Shares | Other | 2025-08-13 | |
| 2025-03-31 | $32,069,439 | 994,093 | Shares | Other | 2025-05-15 | |
| 2024-12-31 | $18,921,711 | 619,166 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $12,665,387 | 451,690 | Shares | Other | 2024-11-14 | |
| 2024-06-30 | $10,199,616 | 447,941 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $29,244,540 | 961,359 | Shares | Other | 2024-05-15 | |
| 2023-12-31 | $15,539,889 | 435,413 | Shares | Other | 2024-02-14 | |
| 2023-09-30 | $16,147,351 | 368,661 | Shares | Other | 2023-11-14 | |
| 2023-06-30 | $19,000,391 | 384,935 | Shares | Other | 2023-08-14 | |
| 2023-03-31 | $22,875,094 | 551,872 | Shares | Other | 2023-05-15 | |
| 2022-09-30 | $558,426 | 14,282 | Shares | Other | 2022-11-14 | |
| 2022-06-30 | $880,287 | 21,544 | Shares | Other | 2022-08-15 | |
| 2021-12-31 | $50,270 | 723 | Shares | Other | 2022-02-14 | |
| 2020-12-31 | $12,288,428 | 220,737 | Shares | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||