Position in ICLR
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$285,170
-$172,931 QoQ
Shares Held
2,577
+2.5% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 68.18005432673651.ToString("F0")%
Shared 0.ToString("F0")%
None 31.819945673263483.ToString("F0")%
Common Shares in ICLR Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $822,825,452 across 8 Diagnostics & Research names. ICLR ranks #8 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TWST |
Twist Bioscience Corp
|
5,269,718 | $250,416,999 | |
| 2 | A |
Agilent Technologies, Inc.
|
1,795,764 | $204,681,180 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
|
351,621 | $197,572,323 | |
| 4 | GH |
Guardant Health, Inc.
|
951,114 | $87,854,400 | |
| 5 | WGS |
GeneDx Holdings Corp.
|
775,269 | $49,787,775 | |
| 6 | VCYT |
Veracyte, Inc.
|
989,687 | $31,877,818 | |
| 7 | LH |
Labcorp Holdings Inc.
|
1,311 | $349,787 | |
| 8 | ICLR |
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|
2,577 | $285,170 |
All Filings in ICLR
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $285,170 | 2,577 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $458,101 | 2,514 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $383,775 | 2,193 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $329,298 | 2,264 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $402,477 | 2,300 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $483,591 | 2,306 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $361,822,411 | 1,259,345 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $363,166,593 | 1,158,537 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $385,660,521 | 1,147,970 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $323,943,326 | 1,144,393 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $256,879,381 | 1,043,165 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $265,125,931 | 1,059,656 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $287,838,796 | 1,347,623 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $288,325,469 | 1,484,301 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $278,654,219 | 1,516,238 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $329,491,916 | 1,520,498 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $270,402,753 | 1,111,762 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $279,599,327 | 902,807 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $239,412,914 | 913,720 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $130,861,279 | 633,067 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $87,937,431 | 447,815 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $93,451,379 | 479,287 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $97,357,297 | 509,484 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $90,041,027 | 534,495 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $66,490,944 | 488,904 | Shares | Sole | 2020-05-08 | |
| No filing history on record for this holder in this stock. | ||||||