ICLR Institutional Ownership
Top institutional (13F) holders of ICLR and 5%+ (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
53
Institutional value
$9.25B
Top holder
Artisan Partners Limited Partnership
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| Artisan Partners Limited Partnershipinvestment advisor | 11.3% | Aug 13, 2026 | $1.5B |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 6.9% | Aug 14, 2026 | $924.15M |
| FMR LLCinvestment advisor | 6.9% | Aug 13, 2026 | $915.68M |
| Invesco Ltd.holding company | 6.9% | Aug 14, 2026 | $914.45M |
| HARRIS ASSOCIATES L Pinvestment advisor | 5.8% | Aug 14, 2026 | $776.16M |
| Greenhaven Associates, Inc.investment advisor | 4.0% | Oct 26, 2026 | $521.7M |
| Massachusetts Financial Services Companyinvestment advisor | 2.7% | Aug 3, 2026 | $369.45M |
| Ruane, Cunniff & Goldfarb L.P.investment advisor | 2.7% | Aug 13, 2026 | $355.77M |
| Dimensional Fund Advisors LPinvestment advisor | 2.2% | Nov 4, 2026 | $284.32M |
| Boston Partnersinvestment advisor | 2.1% | Aug 4, 2026 | $281.4M |
| D. E. Shaw & Co., Inc.investment advisor | 1.8% | Aug 14, 2026 | $241.6M |
| Sachem Head Capital Management LPinvestment advisor | 2.7% | May 16, 2026 | $232.94M |
| Capital World Investorsinvestment advisor | 1.4% | Aug 12, 2026 | $192.13M |
| Ameriprise Financial, Inc.holding company | 1.3% | Aug 14, 2026 | $170.17M |
| AllianceBernstein L.P.investment advisor | 1.8% | Aug 14, 2026 | $152.51M |
| Norges Bankother | 1.1% | Aug 12, 2026 | $142.62M |
| FRANKLIN RESOURCES INCinvestment advisor | 1.0% | Aug 13, 2026 | $136.18M |
| UBS Group AGbank | 0.7% | Aug 13, 2026 | $94.92M |
| BlackRock, Inc.holding company | 0.7% | Aug 7, 2026 | $92.92M |
| JANE STREET GROUP, LLCholding company | 0.7% | Aug 14, 2026 | $92.66M |
| BANK OF AMERICA CORP /DE/holding company | 0.7% | Aug 14, 2026 | $87.39M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 0.6% | Aug 14, 2026 | $78.29M |
| STATE STREET CORPORATIONholding company | 0.6% | Sep 22, 2026 | $76.06M |
| MORGAN STANLEYholding company | 0.5% | Aug 13, 2026 | $71.95M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | 0.5% | Aug 14, 2026 | $65.26M |
5%+ holders
Current stakes of 5% or more from Schedule 13D and 13G filings. A joint filing shows once, under its lead filer.
| Holder | Form | Stake | Filed |
|---|---|---|---|
| Artisan Investments GP LLCholding companywith Artisan Partners Asset Management Inc. and 3 others | SC 13G/A | 10.9% | Mar 6, 2026 |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisorwith Wellington Group Holdings LLP and 2 others | SC 13G/A | 7.7% | May 15, 2026 |
| FMR LLCinvestment advisorwith Abigail P. Johnson | SC 13G/A | 6.9% | Aug 6, 2026 |
| Invesco Ltd.holding company | SC 13G/A | 6.9% | Aug 13, 2026 |
| HARRIS ASSOCIATES L Pinvestment advisorwith Harris Associates Inc | SC 13G | 5.7% | May 15, 2026 |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.