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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
Thrivent Financial for Lutherans2,039$430.0K0.00%−695−25.4%Reduced
Sentry Investment Management LLC2,028$433.0K0.18%+1,031+103.4%Added
Two Sigma Securities, LLC2,046$437.0K0.04%+2,046New
Cambridge Investment Research Advisors, Inc.2,081$444.0K0.00%+71+3.5%Added
Beacon Pointe Advisors, LLC2,083$444.9K0.01%+858+70.0%Added
Fulton Bank, N.A.2,119$452.6K0.02%+54+2.6%Added
Financial Counselors Inc2,131$455.0K0.01%−29−1.3%Reduced
Banque Cantonale Vaudoise2,144$458.0K0.02%−31−1.4%Reduced
Somerset Trust Co2,196$469.0K0.20%00.0%Unchanged
Mercer Global Advisors Inc2,203$471.0K0.00%−232−9.5%Reduced
PGGM Investments2,241$479.0K0.01%00.0%Unchanged
Purus Wealth Management, LLC2,277$486.3K0.38%00.0%Unchanged
Archer Investment Corp2,200$487.5K0.18%00.0%Unchanged
Pinnacle Associates Ltd2,289$488.9K0.01%+13+0.6%Added
Prelude Capital Management, LLC2,294$490.0K0.03%−257−10.1%Reduced
Mackenzie Financial Corp2,308$493.0K0.00%+2,308New
Cetera Advisors LLC2,309$493.2K0.01%−123−5.1%Reduced
SkyView Investment Advisors, LLC2,400$513.0K0.12%+421+21.3%Added
Castleark Management LLC2,410$514.8K0.03%00.0%Unchanged
Marietta Investment Partners LLC2,417$516.2K0.14%−456−15.9%Reduced
Steel Peak Wealth Management LLC2,426$518.2K0.04%−522−17.7%Reduced
Yorktown Management & Research Co Inc2,450$523.3K0.56%00.0%Unchanged
KB Financial Partners, LLC2,474$528.0K0.16%+360+17.0%Added
Tributary Capital Management, LLC2,490$531.8K0.05%+29+1.2%Added
Bayesian Capital Management, LP2,515$537.2K0.07%+2,515New
Tiaa, FSB2,532$540.8K0.00%−343−11.9%Reduced
Baker Tilly Wealth Management, LLC2,545$543.6K0.06%−1,914−42.9%Reduced
Amica Retiree Medical Trust2,556$546.0K0.58%−336−11.6%Reduced
DFPG Investments, LLC2,577$550.4K0.06%−2,140−45.4%Reduced
Legacy Advisors, LLC2,630$561.7K0.10%−278−9.6%Reduced
CIBC World Markets Inc.2,693$575.0K0.00%+54+2.0%Added
Commonwealth Equity Services, LLC2,773$592.0K0.00%+1,324+91.4%Added
Tectonic Advisors LLC2,784$594.6K0.08%00.0%Unchanged
O'Shaughnessy Asset Management, LLC2,831$604.7K0.01%−172−5.7%Reduced
Legacy Wealth Asset Management, LLC2,865$611.9K0.22%+765+36.4%Added
Chiron Investment Management, LLC2,878$614.7K0.11%+1,136+65.2%Added
CIBC Asset Management Inc2,918$623.3K0.00%−25,678−89.8%Reduced
Resources Investment Advisors, LLC.2,918$623.3K0.01%+2,918New
Pathstone Family Office, LLC2,925$625.0K0.01%−937−24.3%Reduced
Kennedy Capital Management, Inc.3,060$653.6K0.02%00.0%Unchanged
Advisory Services Network, LLC3,081$658.1K0.02%+16+0.5%Added
Aviva PLC3,086$659.1K0.00%−7,836−71.7%Reduced
TD Waterhouse Canada Inc.3,019$661.6K0.01%−48−1.6%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)3,195$682.4K0.00%−1,035−24.5%Reduced
United Capital Financial Advisers, LLC3,199$683.3K0.00%−1,334−29.4%Reduced
International Assets Investment Management, LLC3,231$690.1K0.10%+885+37.7%Added
Hayek Kallen Investment Management3,255$695.0K0.31%−1,745−34.9%Reduced
Guggenheim Capital LLC3,328$710.8K0.01%−11,458−77.5%Reduced
Alliance Wealth Advisors, LLC3,336$712.5K0.29%+227+7.3%Added
Winton Group Ltd3,344$714.2K0.04%+3,344New
Fifth Third Bancorp3,377$721.3K0.00%+18+0.5%Added
Dakota Wealth Management3,387$723.4K0.05%+89+2.7%Added
XTX Topco Ltd3,415$729.4K0.15%+3,415New
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,418$730.0K0.05%00.0%Unchanged
DAGCO, Inc.3,455$738.0K0.40%−325−8.6%Reduced
Private Advisor Group, LLC3,459$738.8K0.01%+3,459New
Chicago Partners Investment Group LLC3,618$747.1K0.04%+3,618New
Wrapmanager Inc3,605$770.0K0.24%+810+29.0%Added
Aigen Investment Management, LP3,626$774.5K0.11%+3,626New
First Hawaiian Bank3,669$783.7K0.03%−1,237−25.2%Reduced
Covenant Partners, LLC3,688$787.7K0.30%+1,529+70.8%Added
Rathbone Brothers plc3,800$811.6K0.01%00.0%Unchanged
Nwam LLC3,810$813.8K0.08%00.0%Unchanged
Fisher Asset Management, LLC3,851$822.5K0.00%−9,227−70.6%Reduced
BancorpSouth Bank3,860$824.5K0.08%−51−1.3%Reduced
Greenwood Capital Associates LLC3,943$842.2K0.12%−51−1.3%Reduced
CTC Capital Management, LLC4,000$854.4K1.79%+4,000New
Raymond James Trust N.A.4,051$865.0K0.03%−169−4.0%Reduced
Montag & Caldwell, LLC4,080$871.4K0.12%+449+12.4%Added
Chartwell Investment Partners, LLC4,087$873.0K0.03%00.0%Unchanged
Ninety One SA (PTY) Ltd4,139$884.0K0.22%00.0%Unchanged
Dynamic Technology Lab Private Ltd4,197$897.0K0.08%−7,788−65.0%Reduced
TLWM4,215$900.3K0.29%−54−1.3%Reduced
Cumberland Partners Ltd4,250$907.8K0.09%+4,250New
Schechter Investment Advisors, LLC4,270$912.0K0.08%+419+10.9%Added
Mariner, LLC4,382$936.0K0.00%+480+12.3%Added
Twinbeech Capital LP4,563$974.6K0.02%−49,260−91.5%Reduced
Confluence Investment Management LLC4,572$976.5K0.01%+30+0.7%Added
Cim, LLC4,693$1.00M0.20%+37+0.8%Added
Susquehanna International Group, LLP4,698$1.00M0.00%−5,121−52.2%Reduced
Old National Bancorp4,847$1.04M0.03%+384+8.6%Added
V Wealth Advisors LLC4,881$1.04M0.20%−79−1.6%Reduced
Shay Capital LLC5,000$1.07M0.44%+5,000New
Connable Office Inc5,135$1.10M0.16%−155−2.9%Reduced
Schonfeld Strategic Advisors LLC5,136$1.10M0.01%+5,136New
Bishop Rock Capital, L.P.5,180$1.11M1.72%−2,204−29.8%Reduced
Engineers Gate Manager LP5,199$1.11M0.05%−4,100−44.1%Reduced
Mitchell Capital Management Co5,231$1.12M0.28%+98+1.9%Added
Personal Cfo Solutions, LLC5,287$1.13M0.23%+304+6.1%Added
Prudential Financial Inc5,534$1.18M0.00%+1,131+25.7%Added
Stephens Inc5,600$1.20M0.02%+380+7.3%Added
Marshall Wace, LLP5,686$1.21M0.00%−155,855−96.5%Reduced
CWM Advisors, LLC5,701$1.22M0.15%+388+7.3%Added
Trexquant Investment LP5,720$1.22M0.03%−210−3.5%Reduced
Tealwood Asset Management Inc5,850$1.25M0.64%−46−0.8%Reduced
Manhattan West Asset Management, LLC6,241$1.33M0.58%+1,356+27.8%Added
SYSTM Wealth Solutions LLC6,245$1.33M0.21%+241+4.0%Added
UBS Oconnor LLC6,318$1.35M0.03%+6,318New
Cetera Investment Advisers6,389$1.36M0.01%+821+14.7%Added
TradeLink Capital LLC6,400$1.37M22.35%+6,400New