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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
Principal Financial Group Inc493,744$105.5M0.08%−9,900−2.0%Reduced
CCLA Investment Management Ltd522,838$110.4M2.17%+3,300+0.6%Added
Earnest Partners LLC518,387$110.7M0.64%−2,774−0.5%Reduced
AustralianSuper Pty Ltd547,929$117.0M0.81%+131,369+31.5%Added
CIBC Private Wealth Group, LLC545,799$120.1M0.35%+157,527+40.6%Added
Wasatch Advisors Inc577,279$123.3M0.77%−17,008−2.9%Reduced
Goldman Sachs Group Inc652,662$139.4M0.04%+10,926+1.7%Added
American Capital Management Inc656,441$140.2M4.93%−10,928−1.6%Reduced
Artisan Partners Limited Partnership669,962$143.1M0.24%+366,022+120.4%Added
Trinity Street Asset Management LLP682,283$145.7M16.32%+67,658+11.0%Added
Norges Bank739,435$157.9M0.03%+36,767+5.2%Added
Perpetual Ltd805,872$172.1M1.49%+805,872New
Janus Henderson Group PLC838,246$179.0M0.12%−148,318−15.0%Reduced
Renaissance Technologies LLC884,583$188.9M0.25%−223,100−20.1%Reduced
Neuberger Berman Group LLC919,320$196.3M0.18%−9,801−1.1%Reduced
Bamco Inc987,977$211.0M0.63%+52,126+5.6%Added
Millennium Management LLC1,005,484$214.8M0.25%+690,054+218.8%Added
Sustainable Growth Advisers, LP1,013,095$216.4M1.25%−53,708−5.0%Reduced
Bank of America Corp1,103,186$235.6M0.03%+133,874+13.8%Added
FIL Ltd1,321,642$282.3M0.32%+145,450+12.4%Added
Comgest Global Investors S.A.S.1,327,261$283.5M5.32%+14,364+1.1%Added
William Blair Investment Management, LLC1,347,623$287.8M1.00%−136,678−9.2%Reduced
Westfield Capital Management Co LP1,365,572$291.7M2.06%−25,637−1.8%Reduced
Clearbridge Investments, LLC1,437,209$307.0M0.29%−402,135−21.9%Reduced
Polen Capital Management LLC1,486,714$317.5M0.84%−45,225−3.0%Reduced
Invesco Ltd.1,565,441$334.4M0.09%+6,001+0.4%Added
Alliancebernstein L.P.1,685,400$360.0M0.15%+342,625+25.5%Added
Capital Research Global Investors1,742,474$372.2M0.11%+812,713+87.4%Added
American Century Companies Inc1,941,864$413.4M0.33%−334,327−14.7%Reduced
Franklin Resources Inc2,141,643$457.4M0.23%+502,496+30.7%Added
Ninety One UK Ltd2,266,538$484.1M1.51%+41,456+1.9%Added
Wellington Management Group LLP2,362,291$504.6M0.10%−420,270−15.1%Reduced
FMR LLC2,933,673$626.6M0.06%+544,058+22.8%Added
Lazard Asset Management LLC2,977,756$636.0M0.83%−216,141−6.8%Reduced
Boston Partners3,077,298$655.7M0.90%−29,184−0.9%Reduced
WCM Investment Management, LLC5,789,447$1.24B3.95%−95,967−1.6%Reduced
Massachusetts Financial Services Co8,185,956$1.75B0.60%+66,739+0.8%Added
Transamerica Financial Advisors, Inc.1––00.0%Unchanged
Bell Asset Management Ltd0$00.00%−47,513−100.0%Sold out
Sio Capital Management, LLC0$00.00%−33,983−100.0%Sold out
Duality Advisers, LP0$00.00%−22,968−100.0%Sold out
Edgestream Partners, L.P.0$00.00%−17,647−100.0%Sold out
Jump Financial, LLC0$00.00%−16,880−100.0%Sold out
Woodline Partners LP0$00.00%−15,215−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−7,320−100.0%Sold out
Concentric Capital Strategies, LP0$00.00%−6,739−100.0%Sold out
Holocene Advisors, LP0$00.00%−6,182−100.0%Sold out
Park Avenue Securities LLC0$00.00%−5,555−100.0%Sold out
Jacobsen Capital Management0$00.00%−5,541−100.0%Sold out
Cipher Capital LP0$00.00%−5,170−100.0%Sold out
Cna Financial Corp0$00.00%−5,117−100.0%Sold out
Highland Capital Management, LLC0$00.00%−4,612−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−3,845−100.0%Sold out
Simplex Trading, LLC0$00.00%−2,847−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−2,683−100.0%Sold out
Executive Wealth Management, LLC0$00.00%−2,441−100.0%Sold out
Seven Eight Capital, LP0$00.00%−2,382−100.0%Sold out
Pzena Investment Management LLC0$00.00%−2,077−100.0%Sold out
Dryden Capital, LLC0$00.00%−2,000−100.0%Sold out
Inceptionr LLC0$00.00%−1,961−100.0%Sold out
Kula Investments, LLC0$00.00%−1,800−100.0%Sold out
Ground Swell Capital, LLC0$00.00%−1,783−100.0%Sold out
Aspen Grove Capital, LLC0$00.00%−1,374−100.0%Sold out
Capital Asset Advisory Services LLC0$00.00%−1,126−100.0%Sold out
Veriti Management LLC0$00.00%−1,200−100.0%Sold out
Verition Fund Management LLC0$00.00%−1,069−100.0%Sold out
Cresset Asset Management, LLC0$00.00%−1,065−100.0%Sold out
Cerity Partners LLC0$00.00%−1,059−100.0%Sold out
Investment House LLC0$00.00%−1,030−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−983−100.0%Sold out
One Wealth Advisors, LLC0$00.00%−161−100.0%Sold out
Zullo Investment Group, Inc.0$00.00%−144−100.0%Sold out
Logan Capital Management Inc0$00.00%−105−100.0%Sold out
Arlington Partners LLC0$00.00%−87−100.0%Sold out
Sierra Capital LLC0$00.00%−72−100.0%Sold out
MinichMacGregor Wealth Management, LLC0$00.00%−69−100.0%Sold out
My Personal CFO, LLC0$00.00%−52−100.0%Sold out
U.S. Capital Wealth Advisors, LLC0$00.00%−50−100.0%Sold out
RWM Asset Management, LLC0$00.00%−29−100.0%Sold out
Quarry LP0$00.00%−28−100.0%Sold out
Coppell Advisory Solutions LLC0$00.00%−20−100.0%Sold out
Coppell Advisory Solutions Corp.0$00.00%−20−100.0%Sold out
Sageworth Trust Co0$00.00%−8−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−10−100.0%Sold out
Lansing Street Advisors0$00.00%−5−100.0%Sold out
Covestor Ltd0$00.00%−1−100.0%Sold out
Pendal Group Limited––––Not filed
Comerica Bank––––Not filed
Heritage Wealth Management, LLC––––Not filed
Momentum Advisors, LLC––––Not filed
Laurel Wealth Advisors, Inc.––––Not filed
Icon Wealth Advisors, LLC––––Not filed
Perpetual Investment Management Ltd––––Not filed
Glass Jacobson Investment Advisors llc––––Not filed
CoreCap Advisors, LLC––––Not filed
Cornerstone Planning Group LLC––––Not filed
Trustcore Financial Services, LLC––––Not filed