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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Position in ICLR — Icon PLC

CIK 1644956 CHICAGO, IL

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, 2026

WILLIAM 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
8 ICLR
Icon PLC
This page
2,577 $285,170

All Filings in ICLR

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $285,170 2,577
2025-12-31 $458,101 2,514
2025-09-30 $383,775 2,193
2025-06-30 $329,298 2,264
2025-03-31 $402,477 2,300
2024-12-31 $483,591 2,306
2024-09-30 $361,822,411 1,259,345
2024-06-30 $363,166,593 1,158,537
2024-03-31 $385,660,521 1,147,970
2023-12-31 $323,943,326 1,144,393
2023-09-30 $256,879,381 1,043,165
2023-06-30 $265,125,931 1,059,656
2023-03-31 $287,838,796 1,347,623
2022-12-31 $288,325,469 1,484,301
2022-09-30 $278,654,219 1,516,238
2022-06-30 $329,491,916 1,520,498
2022-03-31 $270,402,753 1,111,762
2021-12-31 $279,599,327 902,807
2021-09-30 $239,412,914 913,720
2021-06-30 $130,861,279 633,067
2021-03-31 $87,937,431 447,815
2020-12-31 $93,451,379 479,287
2020-09-30 $97,357,297 509,484
2020-06-30 $90,041,027 534,495
2020-03-31 $66,490,944 488,904