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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 2024

Institutional positions in Icon PLC as of Mar 31, 2024. 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
648
+49 vs. Q4 2023
Shares held
78.0M
−1.07M (−1.4%) vs. Q4 2023
Total value
$26.1B
+$4.10B (+18.6%) vs. Q4 2023
New holders
98
218 more added
Sold out
49
234 more reduced

4 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 2024: 648 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 2024: $26.1B
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 2024

Shares, value and share of portfolio for each institution holding Icon PLC; share changes are against Q4 2023.

Institutions holding ICLR in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Meeder Asset Management Inc24$8.06K0.00%+24New
Centennial Bank23$7.73K0.00%−422−94.8%Reduced
Massmutual Trust Co FSB23$7.73K0.00%−1−4.2%Reduced
Eagle Bay Advisors LLC22$7.39K0.00%00.0%Unchanged
Frazier Financial Advisors, LLC22$7.39K0.01%00.0%Unchanged
Beacon Capital Management, LLC22$7.39K0.00%+11+100.0%Added
Oakworth Capital, Inc.21$7.05K0.00%00.0%Unchanged
Transamerica Financial Advisors, Inc.19$7.00K0.00%+18+1,800.0%Added
WealthCollab, LLC20$6.72K0.00%00.0%Unchanged
Central Bank & Trust Co20$6.72K0.00%00.0%Unchanged
Ancora Advisors, LLC20$6.72K0.00%00.0%Unchanged
Hilltop National Bank20$6.72K0.00%+20New
Colonial Trust Co20$6.59K0.00%00.0%Unchanged
Gilliland Jeter Wealth Management LLC19$6.38K0.00%+19New
Cornerstone Planning Group LLC20$6.18K0.00%+3+17.6%Added
Oliver Lagore Vanvalin Investment Group17$5.71K0.00%00.0%Unchanged
Crewe Advisors LLC16$5.38K0.00%+16New
Abound Wealth Management16$5.38K0.00%+16New
Headlands Technologies LLC16$5.38K0.00%−1,705−99.1%Reduced
Morton Brown Family Wealth, LLC15$5.04K0.00%+15New
Avion Wealth13$5.00K0.00%+13New
Salem Investment Counselors Inc14$4.70K0.00%+14New
Hexagon Capital Partners LLC13$4.37K0.00%−2−13.3%Reduced
Continuum Advisory, LLC13$4.10K0.00%+13New
Caldwell Sutter Capital, Inc.12$4.03K0.00%00.0%Unchanged
Prestige Wealth Management Group LLC11$3.70K0.00%00.0%Unchanged
HighMark Wealth Management LLC11$3.69K0.00%−2−15.4%Reduced
St Germain D J Co Inc11$3.69K0.00%00.0%Unchanged
Cullen/Frost Bankers, Inc.11$3.69K0.00%+11New
Central Trust Co10$3.36K0.00%−12−54.5%Reduced
JJJ Advisors Inc.9$3.02K0.00%00.0%Unchanged
Addison Advisors LLC9$3.02K0.00%00.0%Unchanged
Parkside Financial Bank & Trust9$3.02K0.00%+6+200.0%Added
JFS Wealth Advisors, LLC8$2.69K0.00%00.0%Unchanged
Provenance Wealth Advisors, LLC8$2.69K0.00%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC6$2.02K0.00%00.0%Unchanged
Penserra Capital Management LLC6$2.00K0.00%00.0%Unchanged
Financial Synergies Wealth Advisors, Inc.4$1.34K0.00%+4New
Glen Eagle Advisors, LLC4$1.23K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.3$1.01K0.00%−18−85.7%Reduced
Rakuten Securities, Inc.2$6720.00%−14−87.5%Reduced
Frank, Rimerman Advisors LLC2$6720.00%00.0%Unchanged
TD Capital Management LLC2$6720.00%+2New
PEAK6 Investments LLC2$5320.00%+2New
Versant Capital Management, Inc1$3360.00%00.0%Unchanged
Creative Capital Management Investments LLC1$3360.00%00.0%Unchanged
TFC Financial Management1$3360.00%+1New
True Wealth Design, LLC1$3360.00%+1New
Twinbeech Capital LP0$00.00%−141,050−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−73,950−100.0%Sold out
Weiss Multi-Strategy Advisers LLC0$00.00%−43,506−100.0%Sold out
Magnetar Financial LLC0$00.00%−41,658−100.0%Sold out
Cetera Advisor Networks LLC0$00.00%−20,290−100.0%Sold out
Verition Fund Management LLC0$00.00%−13,292−100.0%Sold out
FJ Investments, LLC0$00.00%−8,734−100.0%Sold out
Duality Advisers, LP0$00.00%−7,885−100.0%Sold out
Weiss Asset Management LP0$00.00%−6,903−100.0%Sold out
Two Sigma Investments, LP0$00.00%−6,300−100.0%Sold out
TLWM0$00.00%−4,393−100.0%Sold out
Endurant Capital Management LP0$00.00%−3,659−100.0%Sold out
Thoroughbred Financial Services, LLC0$00.00%−3,656−100.0%Sold out
Jennison Associates LLC0$00.00%−2,797−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−2,660−100.0%Sold out
Cetera Advisors LLC0$00.00%−2,603−100.0%Sold out
MQS Management LLC0$00.00%−2,587−100.0%Sold out
Perpetual Ltd0$00.00%−2,364−100.0%Sold out
Inceptionr LLC0$00.00%−2,112−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−1,800−100.0%Sold out
Legacy Advisors, LLC0$00.00%−1,667−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−1,437−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−1,265−100.0%Sold out
Great Lakes Advisors, LLC0$00.00%−1,226−100.0%Sold out
TT International Asset Management LTD0$00.00%−1,218−100.0%Sold out
Simplex Trading, LLC0$00.00%−1,092−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−1,087−100.0%Sold out
Checchi Capital Advisers, LLC0$00.00%−895−100.0%Sold out
Legacy Capital Wealth Partners, LLC0$00.00%−831−100.0%Sold out
CIBC World Markets Inc.0$00.00%−807−100.0%Sold out
Sciencast Management LP0$00.00%−729−100.0%Sold out
Walleye Trading LLC0$00.00%−400−100.0%Sold out
Tradition Wealth Management, LLC0$00.00%−157−100.0%Sold out
Livelsberger Financial Advisory0$00.00%−102−100.0%Sold out
LM Advisors LLC0$00.00%−90−100.0%Sold out
West Tower Group, LLC0$00.00%−76−100.0%Sold out
ORG Partners LLC0$00.00%−50−100.0%Sold out
Glassman Wealth Services0$00.00%−37−100.0%Sold out
Tucker Asset Management LLC0$00.00%−32−100.0%Sold out
Trifecta Capital Advisors, LLC0$00.00%−29−100.0%Sold out
Laffer Tengler Investments0$00.00%−27−100.0%Sold out
RFP Financial Group LLC0$00.00%−21−100.0%Sold out
BKM Wealth Management, LLC0$00.00%−18−100.0%Sold out
Sunbelt Securities, Inc.0$00.00%−14−100.0%Sold out
Carmichael Hill & Associates, Inc.0$00.00%−11−100.0%Sold out
American National Bank0$00.00%−7−100.0%Sold out
JNBA Financial Advisors0$00.00%−5−100.0%Sold out
EdgeRock Capital LLC0$00.00%−5−100.0%Sold out
Able Wealth Management LLC0$00.00%−1−100.0%Sold out
Putnam Investments LLC––––Not filed
Sawtooth Solutions, LLC––––Not filed
DFPG Investments, LLC––––Not filed