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ICLR

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$173.06 -3.80 (-2.15%) At close · Jul 2
Market Cap
$13.26B
Shares
76,601,538

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 419
Total Value: $8,697,473,942
Total Shares: 78,595,052
Showing 1–100 of 438 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Superinvestors Holding ICLR

All superinvestors →
Bill Nygren $481,516,739 Glenn Greenberg $331,627,105 Ruane Cunniff $180,886,053

Holder Concentration

Across 420 13F filers
Top Holder
10.5%
Jun 2023 → Mar 2026 · range 8.3% – 10.5%
of institutional value
Top 5
33.8%
Jun 2023 → Mar 2026 · range 22.9% – 33.8%
of institutional value
Top 10
50.6%
Jun 2023 → Mar 2026 · range 35.6% – 50.6%
of institutional value
HHI
354
Jun 2023 → Mar 2026 · range 210 – 354
Broadly held
Showing 100 of 438
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Large Artisan Partners Limited Partnership $916,148,053 10.53% 8,278,945
Mega WELLINGTON MANAGEMENT GROUP LLP $654,336,671 7.52% 5,913,037
Large HARRIS ASSOCIATES L P $481,516,739 5.54% 4,351,317
Mega FMR LLC $461,895,500 5.31% 4,174,006
Mega Invesco Ltd. $429,235,636 4.94% 3,878,869
Mega PRINCIPAL FINANCIAL GROUP INC $366,480,578 4.21% 3,311,771
Mid Brave Warrior Advisors, LLC $331,627,105 3.81% 2,996,811
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $301,861,000 3.47% 2,727,824
Mid Sachem Head Capital Management LP $232,939,300 2.68% 2,105,000
Mid GREENHAVEN ASSOCIATES INC $221,586,801 2.55% 2,002,411
Mid Ruane, Cunniff & Goldfarb L.P. $180,886,053 2.08% 1,634,611
Large BRANDES INVESTMENT PARTNERS, LP $158,802,963 1.83% 1,435,053
Mega ALLIANCEBERNSTEIN L.P. $148,792,882 1.71% 1,344,595
Mid Madison Avenue Partners, LP $141,958,853 1.63% 1,282,838
Mid Trinity Street Asset Management LLP $133,693,657 1.54% 1,208,148
Mega D. E. Shaw & Co., Inc. $132,632,096 1.52% 1,198,555
Large 1832 Asset Management L.P. $132,043,938 1.52% 1,193,240
Mega Capital World Investors $122,260,598 1.41% 1,104,831
Mid EQUITY INVESTMENT CORP $121,327,070 1.39% 1,096,395
Mid First Pacific Advisors, LP $109,672,359 1.26% 991,075
Mid LYRICAL ASSET MANAGEMENT LP $103,821,654 1.19% 938,204
Large VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. $101,664,780 1.17% 918,713
Large EARNEST PARTNERS LLC $98,021,521 1.13% 885,790
Large Holocene Advisors, LP $93,047,907 1.07% 840,845
Large Boston Partners $92,416,480 1.06% 835,139
Mega FRANKLIN RESOURCES INC $90,307,964 1.04% 816,085
Mega DIMENSIONAL FUND ADVISORS LP $87,291,704 1.00% 788,828
Large SEI INVESTMENTS CO $83,823,731 0.96% 757,489
Mid LAKEWOOD CAPITAL MANAGEMENT, LP $82,740,482 0.95% 747,700
Mega GOLDMAN SACHS GROUP INC $69,784,519 0.80% 630,621
Mid SOUND SHORE MANAGEMENT INC /CT/ $69,379,172 0.80% 626,958
Large Thrivent Financial for Lutherans $68,871,021 0.79% 622,366
Mega UBS Group AG $67,753,242 0.78% 612,265
Mid Stephens Investment Management Group LLC $66,304,816 0.76% 599,176
Mega BANK OF AMERICA CORP /DE/ Bank $60,142,269 0.69% 543,487
Large Russell Investments Group, Ltd. $56,913,096 0.65% 514,306
Mega STATE STREET CORP $50,594,747 0.58% 457,209
Mid Impactive Capital LP $49,856,756 0.57% 450,540
Large BAMCO INC /NY/ $47,230,241 0.54% 426,805
Mega BlackRock, Inc. $45,768,527 0.53% 413,596
Large Aberdeen Group plc $44,185,430 0.51% 399,290
Mid River Road Asset Management, LLC $40,912,661 0.47% 369,715
Small Eagle Health Investments LP $39,671,610 0.46% 358,500
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $38,256,379 0.44% 345,711
Mid Maple Rock Capital Partners Inc. $37,104,298 0.43% 335,300
Small HUDSON EDGE INVESTMENT PARTNERS INC. $35,300,871 0.41% 319,003
Small Sio Capital Management, LLC $33,901,576 0.39% 306,358
Mega MORGAN STANLEY $32,439,089 0.37% 293,142
Small Zuckerman Investment Group, LLC $31,094,574 0.36% 280,992
Mega RAYMOND JAMES FINANCIAL INC $28,930,064 0.33% 261,432
Mega CITADEL ADVISORS LLC $27,842,830 0.32% 251,607
Small PERRY CREEK CAPITAL LP $27,111,700 0.31% 245,000
Large CIBC Bancorp USA Inc. Bank $25,335,938 0.29% 228,953
Large DIAMOND HILL CAPITAL MANAGEMENT INC $24,382,492 0.28% 220,337
Large Walleye Capital LLC $21,752,546 0.25% 196,571
Mid Soleus Capital Management, L.P. $21,246,720 0.24% 192,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $20,638,090 0.24% 186,500
Mega Legal & General Group Plc $19,409,099 0.22% 175,394
Mid Fisher Funds Management LTD $19,287,042 0.22% 174,291
Large BROWN ADVISORY INC $19,186,119 0.22% 173,379
Small BROWN CAPITAL MANAGEMENT LLC $17,486,271 0.20% 158,018
Mid Distillate Capital Partners LLC $17,026,700 0.20% 153,865
Mega ROYAL BANK OF CANADA Bank $17,011,536 0.20% 153,728
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $16,686,864 0.19% 150,794
Mid MOORE CAPITAL MANAGEMENT, LP $16,290,037 0.19% 147,208
Mega ENVESTNET ASSET MANAGEMENT INC $16,074,803 0.18% 145,263
Small Hyperion Capital Advisors LP $15,764,070 0.18% 142,455
Large Balyasny Asset Management L.P. $15,095,794 0.17% 136,416
Small Eldred Rock Partners, LLC $14,880,339 0.17% 134,469
Mega California Public Employees Retirement System Pension $13,312,066 0.15% 120,297
Large Corient Private Wealth LLC $12,758,102 0.15% 115,291
Small Philosophy Capital Management LLC $12,284,919 0.14% 111,015
Large Zurich Insurance Group Ltd/FI Insurance $12,164,411 0.14% 109,926
Large Vident Advisory, LLC $12,067,029 0.14% 109,046
Small Running Oak Capital LLC $12,022,876 0.14% 108,647
Mid FRONTIER CAPITAL MANAGEMENT CO LLC $12,002,958 0.14% 108,467
Large AVIVA PLC $11,786,617 0.14% 106,512
Small KINGDON CAPITAL MANAGEMENT, L.L.C. $11,652,498 0.13% 105,300
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $11,369,540 0.13% 102,743
Mega AMERIPRISE FINANCIAL INC $11,313,544 0.13% 102,237
Large Polar Capital Holdings Plc $11,116,903 0.13% 100,460
Small Steamboat Capital Partners, LLC $11,099,087 0.13% 100,299
Small Stanley Capital Management, LLC $11,066,000 0.13% 100,000
Mega BANK OF MONTREAL /CAN/ Bank $10,668,065 0.12% 96,404
Mega GEODE CAPITAL MANAGEMENT, LLC $10,610,080 0.12% 95,880
Mid Meridiem Capital Partners LP $10,388,539 0.12% 93,878
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $9,669,581 0.11% 87,381
Mid CAMBIAR INVESTORS LLC $9,632,399 0.11% 87,045
Large STATE OF MICHIGAN RETIREMENT SYSTEM Pension $9,413,846 0.11% 85,070
Mid FARMERS & MERCHANTS INVESTMENTS INC $9,187,103 0.11% 83,021
Large Allspring Global Investments Holdings, LLC $9,089,058 0.10% 82,135
Mega JANUS HENDERSON GROUP PLC $9,080,869 0.10% 82,061
Small Leith Wheeler Investment Counsel Ltd. $9,008,609 0.10% 81,408
Small Foresight Group Ltd Liability Partnership $8,925,835 0.10% 80,660
Small PARTHENON LLC $8,764,603 0.10% 79,203
Mega WELLS FARGO & COMPANY/MN $8,117,906 0.09% 73,359
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $8,056,048 0.09% 72,800
Mid Eversept Partners, LP $7,601,014 0.09% 68,688
Small MUHLENKAMP & CO INC $7,304,113 0.08% 66,005
Large TUDOR INVESTMENT CORP ET AL $7,234,397 0.08% 65,375
Key facts CIK 1060955 CUSIP G4705A100 13F (30d) 5 filings 4 filers Visit website Investor relations

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