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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, Q1 2023

Institutional positions in Icon PLC as of Mar 31, 2023. 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
538
+18 vs. Q4 2022
Shares held
75.1M
+1.48M (+2.0%) vs. Q4 2022
Total value
$16.1B
+$1.78B (+12.5%) vs. Q4 2022
New holders
66
195 more added
Sold out
48
187 more reduced

11 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 538 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 heldQ1 2023: $16.1B
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, Q1 2023

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q4 2022.

Institutions holding ICLR in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Manufacturers Life Insurance Company, The12,231$2.61M0.00%−2,689−18.0%Reduced
Quadrature Capital Ltd11,978$2.56M0.07%−33,781−73.8%Reduced
Shaker Investments LLC11,741$2.51M1.40%+110+0.9%Added
GAM Holding AG11,600$2.48M0.17%+953+9.0%Added
Barclays PLC11,425$2.44M0.00%+7+0.1%Added
Cubist Systematic Strategies, LLC11,384$2.43M0.02%−32,065−73.8%Reduced
FORA Capital, LLC10,519$2.25M0.23%+4,539+75.9%Added
Diversified Trust Co10,231$2.19M0.09%−528−4.9%Reduced
Utah Retirement Systems9,987$2.13M0.03%00.0%Unchanged
Regions Financial Corp9,881$2.11M0.02%+723+7.9%Added
Snowden Capital Advisors LLC9,867$2.11M0.08%+683+7.4%Added
FDx Advisors, Inc.10,641$2.07M0.09%00.0%Unchanged
CM Wealth Advisors LLC10,163$2.04M0.40%+10,163New
Atria Investments LLC9,455$2.02M0.04%−486−4.9%Reduced
Fayez Sarofim & Co9,440$2.02M0.01%+5,200+122.6%Added
SeaBridge Investment Advisors LLC9,433$2.01M0.70%+6,855+265.9%Added
Credit Suisse AG9,382$2.00M0.00%+919+10.9%Added
Tekla Capital Management LLC9,334$1.99M0.08%00.0%Unchanged
Handelsbanken Fonder AB9,230$1.97M0.01%+900+10.8%Added
Pettee Investors, Inc.9,101$1.94M0.93%00.0%Unchanged
Advisors Asset Management, Inc.8,639$1.85M0.04%−1,327−13.3%Reduced
Citadel Advisors LLC8,483$1.81M0.00%−20,090−70.3%Reduced
Kestra Advisory Services, LLC8,446$1.80M0.02%−5,482−39.4%Reduced
SG Americas Securities, LLC8,059$1.72M0.02%−9,094−53.0%Reduced
Bangor Savings Bank7,851$1.68M0.20%+4+0.1%Added
Echo Street Capital Management LLC7,744$1.65M0.01%+2,852+58.3%Added
Two Sigma Investments, LP7,500$1.60M0.00%+1,200+19.0%Added
DekaBank Deutsche Girozentrale7,463$1.56M0.00%+5,000+203.0%Added
Ergoteles LLC7,287$1.56M0.06%−4,814−39.8%Reduced
Eqis Capital Management, Inc.7,238$1.55M0.17%−1,164−13.9%Reduced
Transatlantique Private Wealth LLC7,317$1.54M0.85%+1,497+25.7%Added
First National Bank of Omaha7,200$1.54M0.09%+131+1.9%Added
Glenmede Trust Co NA7,084$1.51M0.01%−81−1.1%Reduced
Live Oak Private Wealth LLC7,056$1.51M0.31%+34+0.5%Added
Harbor Capital Advisors, Inc.7,027$1.50M0.43%−583−7.7%Reduced
Y-Intercept (Hong Kong) Ltd6,686$1.43M0.17%+4,682+233.6%Added
Washington Trust Advisors, Inc.6,666$1.42M0.14%+6+0.1%Added
TradeLink Capital LLC6,400$1.37M22.35%+6,400New
Cetera Investment Advisers6,389$1.36M0.01%+821+14.7%Added
UBS Oconnor LLC6,318$1.35M0.03%+6,318New
SYSTM Wealth Solutions LLC6,245$1.33M0.21%+241+4.0%Added
Manhattan West Asset Management, LLC6,241$1.33M0.58%+1,356+27.8%Added
Tealwood Asset Management Inc5,850$1.25M0.64%−46−0.8%Reduced
Trexquant Investment LP5,720$1.22M0.03%−210−3.5%Reduced
CWM Advisors, LLC5,701$1.22M0.15%+388+7.3%Added
Marshall Wace, LLP5,686$1.21M0.00%−155,855−96.5%Reduced
Stephens Inc5,600$1.20M0.02%+380+7.3%Added
Prudential Financial Inc5,534$1.18M0.00%+1,131+25.7%Added
Personal Cfo Solutions, LLC5,287$1.13M0.23%+304+6.1%Added
Mitchell Capital Management Co5,231$1.12M0.28%+98+1.9%Added
Engineers Gate Manager LP5,199$1.11M0.05%−4,100−44.1%Reduced
Bishop Rock Capital, L.P.5,180$1.11M1.72%−2,204−29.8%Reduced
Schonfeld Strategic Advisors LLC5,136$1.10M0.01%+5,136New
Connable Office Inc5,135$1.10M0.16%−155−2.9%Reduced
Shay Capital LLC5,000$1.07M0.44%+5,000New
V Wealth Advisors LLC4,881$1.04M0.20%−79−1.6%Reduced
Old National Bancorp4,847$1.04M0.03%+384+8.6%Added
Susquehanna International Group, LLP4,698$1.00M0.00%−5,121−52.2%Reduced
Cim, LLC4,693$1.00M0.20%+37+0.8%Added
Confluence Investment Management LLC4,572$976.5K0.01%+30+0.7%Added
Twinbeech Capital LP4,563$974.6K0.02%−49,260−91.5%Reduced
Mariner, LLC4,382$936.0K0.00%+480+12.3%Added
Schechter Investment Advisors, LLC4,270$912.0K0.08%+419+10.9%Added
Cumberland Partners Ltd4,250$907.8K0.09%+4,250New
TLWM4,215$900.3K0.29%−54−1.3%Reduced
Dynamic Technology Lab Private Ltd4,197$897.0K0.08%−7,788−65.0%Reduced
Ninety One SA (PTY) Ltd4,139$884.0K0.22%00.0%Unchanged
Chartwell Investment Partners, LLC4,087$873.0K0.03%00.0%Unchanged
Montag & Caldwell, LLC4,080$871.4K0.12%+449+12.4%Added
Raymond James Trust N.A.4,051$865.0K0.03%−169−4.0%Reduced
CTC Capital Management, LLC4,000$854.4K1.79%+4,000New
Greenwood Capital Associates LLC3,943$842.2K0.12%−51−1.3%Reduced
BancorpSouth Bank3,860$824.5K0.08%−51−1.3%Reduced
Fisher Asset Management, LLC3,851$822.5K0.00%−9,227−70.6%Reduced
Nwam LLC3,810$813.8K0.08%00.0%Unchanged
Rathbone Brothers plc3,800$811.6K0.01%00.0%Unchanged
Covenant Partners, LLC3,688$787.7K0.30%+1,529+70.8%Added
First Hawaiian Bank3,669$783.7K0.03%−1,237−25.2%Reduced
Aigen Investment Management, LP3,626$774.5K0.11%+3,626New
Wrapmanager Inc3,605$770.0K0.24%+810+29.0%Added
Chicago Partners Investment Group LLC3,618$747.1K0.04%+3,618New
Private Advisor Group, LLC3,459$738.8K0.01%+3,459New
DAGCO, Inc.3,455$738.0K0.40%−325−8.6%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,418$730.0K0.05%00.0%Unchanged
XTX Topco Ltd3,415$729.4K0.15%+3,415New
Dakota Wealth Management3,387$723.4K0.05%+89+2.7%Added
Fifth Third Bancorp3,377$721.3K0.00%+18+0.5%Added
Winton Group Ltd3,344$714.2K0.04%+3,344New
Alliance Wealth Advisors, LLC3,336$712.5K0.29%+227+7.3%Added
Guggenheim Capital LLC3,328$710.8K0.01%−11,458−77.5%Reduced
Hayek Kallen Investment Management3,255$695.0K0.31%−1,745−34.9%Reduced
International Assets Investment Management, LLC3,231$690.1K0.10%+885+37.7%Added
United Capital Financial Advisers, LLC3,199$683.3K0.00%−1,334−29.4%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)3,195$682.4K0.00%−1,035−24.5%Reduced
TD Waterhouse Canada Inc.3,019$661.6K0.01%−48−1.6%Reduced
Aviva PLC3,086$659.1K0.00%−7,836−71.7%Reduced
Advisory Services Network, LLC3,081$658.1K0.02%+16+0.5%Added
Kennedy Capital Management, Inc.3,060$653.6K0.02%00.0%Unchanged
Pathstone Family Office, LLC2,925$625.0K0.01%−937−24.3%Reduced
CIBC Asset Management Inc2,918$623.3K0.00%−25,678−89.8%Reduced