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Icon PLC

ICLR
Exchange
Nasdaq
Industry
Services-Commercial Physical & Biological Research
SEC CIK
0001060955

In the last 90 days, Icon PLC insiders filed 0 open-market purchases and 12 sales; 423 institutions reported holding it in 13F filings for Q2 2026, worth $13.9B in total; superinvestors Harris Associates (Oakmark) and Greenhaven Associates hold it.

13F holders, Q4 2021

Institutional positions in Icon PLC as of Dec 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
548
+43 vs. Q3 2021
Shares held
73.4M
−114.5K (−0.2%) vs. Q3 2021
Total value
$22.7B
+$3.40B (+17.6%) vs. Q3 2021
New holders
97
188 more added
Sold out
54
177 more reduced

5 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ICLR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2021: 548 institutions
Q1 2021: 426 institutionsQ2 2021: 449 institutionsQ3 2021: 510 institutionsQ4 2021: 548 institutionsQ1 2022: 512 institutionsQ2 2022: 510 institutionsQ3 2022: 488 institutionsQ4 2022: 531 institutionsQ1 2023: 538 institutionsQ2 2023: 534 institutionsQ3 2023: 556 institutionsQ4 2023: 603 institutionsQ1 2024: 648 institutionsQ2 2024: 676 institutionsQ3 2024: 662 institutionsQ4 2024: 596 institutionsQ1 2025: 562 institutionsQ2 2025: 489 institutionsQ3 2025: 513 institutionsQ4 2025: 514 institutionsQ1 2026: 420 institutionsQ2 2026: 423 institutions
Value heldQ4 2021: $22.7B
Q1 2021: $10.0BQ2 2021: $12.3BQ3 2021: $19.3BQ4 2021: $22.7BQ1 2022: $17.8BQ2 2022: $16.2BQ3 2022: $13.9BQ4 2022: $14.5BQ1 2023: $16.1BQ2 2023: $19.9BQ3 2023: $19.7BQ4 2023: $22.1BQ1 2024: $26.1BQ2 2024: $24.3BQ3 2024: $22.4BQ4 2024: $16.0BQ1 2025: $13.3BQ2 2025: $11.2BQ3 2025: $13.0BQ4 2025: $14.1BQ1 2026: $8.74BQ2 2026: $13.9B
Institutions holding ICLR and their total value by quarter
QuarterHoldersValue
Q2 2026423$13.9B
Q1 2026420$8.74B
Q4 2025514$14.1B
Q3 2025513$13.0B
Q2 2025489$11.2B
Q1 2025562$13.3B
Q4 2024596$16.0B
Q3 2024662$22.4B
Q2 2024676$24.3B
Q1 2024648$26.1B
Q4 2023603$22.1B
Q3 2023556$19.7B
Q2 2023534$19.9B
Q1 2023538$16.1B
Q4 2022531$14.5B
Q3 2022488$13.9B
Q2 2022510$16.2B
Q1 2022512$17.8B
Q4 2021548$22.7B
Q3 2021510$19.3B
Q2 2021449$12.3B
Q1 2021426$10.0B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q3 2021.

Institutions holding ICLR in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Bishop Rock Capital, L.P.60,924$18.9M5.64%+17,637+40.7%Added
Tygh Capital Management, Inc.60,837$18.8M2.41%−26,957−30.7%Reduced
Strategic Global Advisors, LLC53,843$18.5M2.41%−27,300−33.6%Reduced
Perpetual Investment Management Ltd59,082$18.3M2.10%−29,425−33.2%Reduced
Hantz Financial Services, Inc.58,981$18.3M0.53%−1,729−2.8%Reduced
First Republic Investment Management, Inc.56,814$17.6M0.04%−3,552−5.9%Reduced
Macquarie Group Ltd55,608$17.2M0.01%−20,636−27.1%Reduced
Vanguard Group Inc55,383$17.2M0.00%+4,116+8.0%Added
Amundi61,607$16.9M0.01%+36,243+142.9%Added
State of Michigan Retirement System54,170$16.8M0.09%+20,700+61.8%Added
Teachers Retirement System of the State of Kentucky53,748$16.6M0.15%00.0%Unchanged
Farmers & Merchants Investments Inc53,490$16.6M0.62%+1,077+2.1%Added
Globeflex Capital L P52,799$16.4M3.35%−285−0.5%Reduced
LVM Capital Management Ltd52,672$16.3M2.17%−835−1.6%Reduced
Todd Asset Management LLC52,412$16.2M0.35%−115−0.2%Reduced
Eversept Partners, LP51,867$16.1M1.34%−20,044−27.9%Reduced
First Trust Advisors LP51,746$16.0M0.02%+35,999+228.6%Added
Woodline Partners LP51,703$16.0M0.23%+51,703New
Dimensional Fund Advisors LP50,042$15.5M0.00%+197+0.4%Added
Comerica Bank60,267$15.1M0.11%+1,179+2.0%Added
FineMark National Bank & Trust48,571$15.0M0.57%+1,178+2.5%Added
Equitable Trust Co48,066$14.9M0.92%+11,386+31.0%Added
Advisor Group Holdings, Inc.47,732$14.8M0.03%+9,223+24.0%Added
LPL Financial LLC46,823$14.5M0.01%+2,026+4.5%Added
Truist Financial Corp46,389$14.4M0.02%+70.0%Added
Silvercrest Asset Management Group LLC45,568$14.1M0.09%−9,922−17.9%Reduced
Avalon Investment & Advisory44,538$13.8M0.34%−11,827−21.0%Reduced
Ativo Capital Management LLC43,996$13.6M6.03%−6,476−12.8%Reduced
Oppenheimer Asset Management Inc.42,664$13.2M0.18%+5,289+14.2%Added
United Capital Financial Advisers, LLC41,446$12.8M0.06%−2,849−6.4%Reduced
Bank of Montreal41,218$12.8M0.01%−321,412−88.6%Reduced
UBS Asset Management Americas Inc40,862$12.7M0.00%+765+1.9%Added
Azimuth Capital Management LLC40,486$12.5M0.51%−545−1.3%Reduced
Brant Point Investment Management LLC40,080$12.4M2.29%−10,081−20.1%Reduced
JLB & Associates Inc38,563$11.9M1.69%+935+2.5%Added
Blair William & Co38,412$11.9M0.04%+10,129+35.8%Added
Susquehanna International Group, LLP35,092$10.9M0.02%−20,939−37.4%Reduced
Citigroup Inc34,862$10.8M0.01%−80.0%Reduced
GAM Holding AG34,488$10.7M0.48%−139−0.4%Reduced
Susquehanna Fundamental Investments, LLC33,673$10.4M0.27%−15,532−31.6%Reduced
Henry James International Management, Inc.33,579$10.4M3.20%+135+0.4%Added
Manufacturers Life Insurance Company, The33,065$10.2M0.01%−42,559−56.3%Reduced
Renaissance Group LLC32,706$10.1M0.41%−3,495−9.7%Reduced
Brinker Capital Investments, LLC32,416$10.0M0.15%+1,877+6.1%Added
M&T Bank Corp32,301$10.0M0.04%−700−2.1%Reduced
Retirement Systems of Alabama31,900$9.88M0.03%00.0%Unchanged
UBS Group AG29,476$9.13M0.00%+9,269+45.9%Added
Advisors Asset Management, Inc.28,769$8.91M0.13%−407−1.4%Reduced
Captrust Financial Advisors28,542$8.84M0.06%−485−1.7%Reduced
Millennium Management LLC28,537$8.84M0.01%−225,267−88.8%Reduced
Fred Alger Management, LLC27,782$8.60M0.02%−1,286−4.4%Reduced
Marks Group Wealth Management, Inc27,398$8.49M1.03%−777−2.8%Reduced
US Bancorp27,400$8.48M0.01%+1,648+6.4%Added
Rice Hall James & Associates, LLC26,303$8.15M0.29%−1,845−6.6%Reduced
Burney Co25,419$7.87M0.34%−7,230−22.1%Reduced
TownSquare Capital, LLC24,770$7.67M0.19%+3,720+17.7%Added
HighTower Advisors, LLC24,492$7.58M0.02%+710+3.0%Added
Meritage Portfolio Management23,295$7.21M0.41%+248+1.1%Added
D. E. Shaw & Co., Inc.23,001$7.12M0.01%−19,376−45.7%Reduced
Fundsmith Investment Services Ltd.22,275$6.90M3.75%00.0%Unchanged
Driehaus Capital Management LLC21,681$6.71M0.07%+21,681New
Charles Schwab Investment Management Inc21,602$6.69M0.00%+1,860+9.4%Added
Westover Capital Advisors, LLC20,552$6.37M1.85%−2,553−11.0%Reduced
Churchill Management Corp20,452$6.33M0.09%−61−0.3%Reduced
Gateway Investment Advisers LLC20,391$6.32M0.06%+2,494+13.9%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main19,960$6.17M0.01%+2,141+12.0%Added
Boothbay Fund Management, LLC19,800$6.13M0.20%−4,300−17.8%Reduced
Welch & Forbes LLC19,590$6.07M0.09%−100−0.5%Reduced
FDx Advisors, Inc.19,191$5.94M0.16%+320+1.7%Added
Employees Retirement System of Texas19,045$5.90M0.07%00.0%Unchanged
Credit Suisse AG17,202$5.33M0.00%+2,453+16.6%Added
Vident Investment Advisory, LLC17,021$5.27M0.14%+1,164+7.3%Added
Majedie Asset Management Ltd16,771$5.20M0.40%+16,771New
MML Investors Services, LLC16,770$5.19M0.04%+348+2.1%Added
Raymond James Financial Services Advisors, Inc.16,722$5.18M0.01%−325−1.9%Reduced
Eqis Capital Management, Inc.16,707$5.17M0.38%−875−5.0%Reduced
Mackenzie Financial Corp16,233$5.03M0.01%+9,434+138.8%Added
Credit Agricole S A16,024$4.96M0.17%−132−0.8%Reduced
Papp L Roy & Associates15,984$4.95M0.57%−35−0.2%Reduced
TD Private Client Wealth LLC15,917$4.93M0.20%−2,029−11.3%Reduced
Fisher Asset Management, LLC15,537$4.81M0.00%+93+0.6%Added
Janney Montgomery Scott LLC15,497$4.80M0.02%−185−1.2%Reduced
Distillate Capital Partners LLC15,322$4.75M0.80%+2,020+15.2%Added
Dorsey Wright & Associates15,212$4.71M0.97%+15,212New
Guggenheim Capital LLC14,825$4.59M0.02%−30−0.2%Reduced
Westpac Banking Corp14,758$4.57M0.05%−2,057−12.2%Reduced
Citadel Advisors LLC14,308$4.43M0.00%+12,258+598.0%Added
Pittenger & Anderson Inc14,187$4.39M0.20%+935+7.1%Added
Amica Mutual Insurance Co13,789$4.27M0.36%00.0%Unchanged
Seascape Capital Management13,517$4.19M1.96%−44−0.3%Reduced
Synovus Financial Corp13,433$4.16M0.04%+11,646+651.7%Added
Shaker Investments LLC13,129$4.07M1.75%+1,745+15.3%Added
Colony Group LLC12,871$3.99M0.07%−215−1.6%Reduced
Mount Yale Investment Advisors, LLC12,809$3.97M0.41%−142−1.1%Reduced
Steadfast Capital Management (UK) Ltd.12,800$3.96M4.77%+4,172+48.4%Added
Atria Investments LLC12,723$3.94M0.07%+2,511+24.6%Added
DnB Asset Management AS12,441$3.85M0.02%−113−0.9%Reduced
Shanda Asset Management Holdings Ltd12,300$3.81M0.60%00.0%Unchanged
Bessemer Group Inc12,161$3.77M0.01%+421+3.6%Added
Castleark Management LLC12,045$3.73M0.14%−1,200−9.1%Reduced