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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
Washington Trust Advisors, Inc.6,666$1.42M0.14%+6+0.1%Added
Y-Intercept (Hong Kong) Ltd6,686$1.43M0.17%+4,682+233.6%Added
Harbor Capital Advisors, Inc.7,027$1.50M0.43%−583−7.7%Reduced
Live Oak Private Wealth LLC7,056$1.51M0.31%+34+0.5%Added
Glenmede Trust Co NA7,084$1.51M0.01%−81−1.1%Reduced
First National Bank of Omaha7,200$1.54M0.09%+131+1.9%Added
Transatlantique Private Wealth LLC7,317$1.54M0.85%+1,497+25.7%Added
Eqis Capital Management, Inc.7,238$1.55M0.17%−1,164−13.9%Reduced
Ergoteles LLC7,287$1.56M0.06%−4,814−39.8%Reduced
DekaBank Deutsche Girozentrale7,463$1.56M0.00%+5,000+203.0%Added
Two Sigma Investments, LP7,500$1.60M0.00%+1,200+19.0%Added
Echo Street Capital Management LLC7,744$1.65M0.01%+2,852+58.3%Added
Bangor Savings Bank7,851$1.68M0.20%+4+0.1%Added
SG Americas Securities, LLC8,059$1.72M0.02%−9,094−53.0%Reduced
Kestra Advisory Services, LLC8,446$1.80M0.02%−5,482−39.4%Reduced
Citadel Advisors LLC8,483$1.81M0.00%−20,090−70.3%Reduced
Advisors Asset Management, Inc.8,639$1.85M0.04%−1,327−13.3%Reduced
Pettee Investors, Inc.9,101$1.94M0.93%00.0%Unchanged
Handelsbanken Fonder AB9,230$1.97M0.01%+900+10.8%Added
Tekla Capital Management LLC9,334$1.99M0.08%00.0%Unchanged
Credit Suisse AG9,382$2.00M0.00%+919+10.9%Added
SeaBridge Investment Advisors LLC9,433$2.01M0.70%+6,855+265.9%Added
Fayez Sarofim & Co9,440$2.02M0.01%+5,200+122.6%Added
Atria Investments LLC9,455$2.02M0.04%−486−4.9%Reduced
CM Wealth Advisors LLC10,163$2.04M0.40%+10,163New
FDx Advisors, Inc.10,641$2.07M0.09%00.0%Unchanged
Snowden Capital Advisors LLC9,867$2.11M0.08%+683+7.4%Added
Regions Financial Corp9,881$2.11M0.02%+723+7.9%Added
Utah Retirement Systems9,987$2.13M0.03%00.0%Unchanged
Diversified Trust Co10,231$2.19M0.09%−528−4.9%Reduced
FORA Capital, LLC10,519$2.25M0.23%+4,539+75.9%Added
Cubist Systematic Strategies, LLC11,384$2.43M0.02%−32,065−73.8%Reduced
Barclays PLC11,425$2.44M0.00%+7+0.1%Added
GAM Holding AG11,600$2.48M0.17%+953+9.0%Added
Shaker Investments LLC11,741$2.51M1.40%+110+0.9%Added
Quadrature Capital Ltd11,978$2.56M0.07%−33,781−73.8%Reduced
Manufacturers Life Insurance Company, The12,231$2.61M0.00%−2,689−18.0%Reduced
Bessemer Group Inc12,360$2.64M0.01%+228+1.9%Added
First Trust Advisors LP12,971$2.77M0.00%−1,058−7.5%Reduced
Exencial Wealth Advisors, LLC13,474$2.88M0.15%+1,418+11.8%Added
Virtu Financial LLC13,473$2.88M0.31%+8,958+198.4%Added
Raymond James Financial Services Advisors, Inc.14,096$3.01M0.01%+685+5.1%Added
Rice Hall James & Associates, LLC14,146$3.02M0.17%−155−1.1%Reduced
MML Investors Services, LLC14,331$3.06M0.02%−2,521−15.0%Reduced
The PNC Financial Services Group, Inc.14,465$3.09M0.00%+1,109+8.3%Added
Sivik Global Healthcare LLC15,000$3.20M1.38%00.0%Unchanged
Papp L Roy & Associates15,142$3.23M0.44%00.0%Unchanged
Eagle Global Advisors LLC15,600$3.33M0.22%+400+2.6%Added
Synovus Financial Corp15,711$3.36M0.04%−1,435−8.4%Reduced
Mount Yale Investment Advisors, LLC15,774$3.37M0.38%+1,532+10.8%Added
Verdence Capital Advisors LLC15,790$3.37M0.41%+11,267+249.1%Added
DnB Asset Management AS15,838$3.38M0.02%−2,042−11.4%Reduced
TD Private Client Wealth LLC16,659$3.56M0.16%+3,926+30.8%Added
Equitable Trust Co17,195$3.67M0.29%−1,662−8.8%Reduced
Burney Co17,348$3.71M0.18%−738−4.1%Reduced
Two Sigma Advisers, LP17,640$3.77M0.01%−400−2.2%Reduced
Janney Montgomery Scott LLC17,672$3.77M0.02%+509+3.0%Added
Westover Capital Advisors, LLC17,699$3.78M1.40%−28−0.2%Reduced
Charles Schwab Investment Management Inc18,185$3.88M0.00%+313+1.8%Added
Romano Brothers and Company18,952$4.05M0.63%−175−0.9%Reduced
US Bancorp18,975$4.05M0.01%−3,228−14.5%Reduced
Cetera Advisor Networks LLC19,008$4.06M0.03%+1,072+6.0%Added
UBS Group AG19,460$4.16M0.00%−339−1.7%Reduced
Dimensional Fund Advisors LP19,510$4.16M0.00%00.0%Unchanged
Welch & Forbes LLC20,015$4.28M0.07%00.0%Unchanged
HighTower Advisors, LLC20,651$4.40M0.01%−447−2.1%Reduced
National Bank of Canada20,898$4.47M0.01%+1,210+6.1%Added
Amica Mutual Insurance Co20,978$4.48M0.50%−3,086−12.8%Reduced
Boothbay Fund Management, LLC22,420$4.79M0.14%+15,751+236.2%Added
Gateway Investment Advisers LLC22,552$4.82M0.06%+3,710+19.7%Added
Banque Pictet & Cie SA22,638$4.84M0.05%−12,184−35.0%Reduced
McKinley Capital Management LLC /Delaware22,686$4.85M0.64%00.0%Unchanged
Russell Investments Group, Ltd.23,298$4.98M0.01%+183+0.8%Added
Walleye Capital LLC23,580$5.04M0.10%+23,580New
Jane Street Group, LLC24,270$5.18M0.01%−15,303−38.7%Reduced
Sumitomo Mitsui Trust Holdings, Inc.24,275$5.18M0.00%+91+0.4%Added
TownSquare Capital, LLC25,109$5.36M0.12%−8,199−24.6%Reduced
Captrust Financial Advisors25,572$5.46M0.02%−995−3.7%Reduced
Strategic Global Advisors, LLC25,797$5.51M0.88%−8,138−24.0%Reduced
Endurant Capital Management LP26,830$5.73M2.94%−32,066−54.4%Reduced
Henry James International Management, Inc.26,851$5.74M2.43%+732+2.8%Added
Putnam Investments LLC26,926$5.75M0.01%−200,742−88.2%Reduced
Fred Alger Management, LLC27,006$5.77M0.03%+40.0%Added
Royal London Asset Management Ltd28,173$6.02M0.02%+3,940+16.3%Added
LMR Partners LLP28,281$6.04M0.13%+28,281New
Running Oak Capital LLC28,670$6.12M1.74%−282−1.0%Reduced
JLB & Associates Inc29,598$6.32M0.95%−5,956−16.8%Reduced
Renaissance Group LLC29,653$6.33M0.29%+247+0.8%Added
M&T Bank Corp29,690$6.34M0.02%−2,155−6.8%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main29,893$6.39M0.01%+2,247+8.1%Added
Blair William & Co30,157$6.44M0.03%−655−2.1%Reduced
BNP Paribas Arbitrage, SA30,167$6.44M0.01%+5,466+22.1%Added
Weiss Multi-Strategy Advisers LLC31,296$6.68M0.16%+31,296New
Marks Group Wealth Management, Inc31,484$6.72M0.86%−1,208−3.7%Reduced
Retirement Systems of Alabama31,900$6.81M0.03%00.0%Unchanged
Azimuth Capital Investment Management LLC33,190$7.09M0.35%+13,980+72.8%Added
Oppenheimer Asset Management Inc.33,478$7.15M0.11%−1,723−4.9%Reduced
Citigroup Inc34,217$7.31M0.01%+3,571+11.7%Added
Silvercrest Asset Management Group LLC34,484$7.37M0.06%−7,331−17.5%Reduced
Cinctive Capital Management LP36,202$7.73M0.29%+36,202New