Security record · archived quarter
ICLR
ICON Public Limited Company · Healthcare · Medical - Diagnostics & Research
119Tracked holders
-2Δ holders
53.17MShares held
$9.70BReported value
+2New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth -1.7% ·
share flow +1.7% ·
net new positions -0.8%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +2 | 54.20M | $9.33B | +10 | −9 |
| Q1 2026 | 112 | -7 | 49.87M | $5.61B | +7 | −15 |
| Q4 2025 | 119 | -2 | 53.17M | $9.70B | +2 | −3 |
| Q3 2025 | 18 | -1 | 14.11M | $2.47B | +2 | −4 |
| Q2 2025 | 17 | +3 | 17.03M | $2.48B | +3 | n/a |
| Q1 2025 | 11 | -1 | 10.01M | $1.75B | +1 | −2 |
| Q4 2024 | 12 | -1 | 9.48M | $1.99B | +2 | −3 |
| Q3 2024 | 12 | -1 | 9.43M | $2.71B | +1 | −2 |
| Q2 2024 | 13 | n/a | 9.47M | $2.97B | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Artisan Partners Limited Partnership | 6.87M | n/a | $1.25B | 1.9% | n/c | 1 | SEC ↗ |
| 2 | Wellington Management ✦ | 4.35M | -6.2% | $792.79M | 0.1% | ▼ Trim | 7 | SEC ↗ ×9 |
| 3 | Invesco Ltd. | 3.76M | n/a | $684.58M | 0.1% | n/c | 1 | SEC ↗ ×13 |
| 4 | Fidelity (FMR) ✦ | 3.10M | +60.2% | $564.50M | 0.0% | ▲ Add | 3 | SEC ↗ ×5 |
| 5 | Principal Financial Group Inc | 3.00M | n/a | $546.94M | 0.3% | n/c | 1 | SEC ↗ |
| 6 | Franklin Resources Inc | 2.99M | n/a | $545.41M | 0.1% | n/c | 1 | SEC ↗ ×9 |
| 7 | Ninety One UK Ltd | 2.95M | n/a | $536.79M | 1.2% | n/c | 1 | SEC ↗ |
| 8 | Harris Associates (Oakmark) ✦ | 2.51M | +7.2% | $457.40M | 0.6% | ▲ Add | 3 | SEC ↗ |
| 9 | Massachusetts Financial Services Co… | 2.36M | n/a | $429.50M | 0.1% | n/c | 1 | SEC ↗ ×8 |
| 10 | Capital World Investors ✦ | 1.50M | +555.2% | $272.69M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Alliancebernstein L.P. | 1.27M | n/a | $231.87M | 0.1% | n/c | 1 | SEC ↗ |
| 12 | Boston Partners | 1.26M | n/a | $229.40M | 0.2% | n/c | 1 | SEC ↗ ×4 |
| 13 | 1832 Asset Management L.P. | 1.20M | n/a | $219.45M | 0.3% | n/c | 1 | SEC ↗ |
| 14 | Allspring Global Investments… | 1.08M | n/a | $203.80M | 0.3% | n/c | 1 | SEC ↗ ×3 |
| 15 | American Century Companies Inc | 1.04M | n/a | $189.15M | 0.1% | n/c | 1 | SEC ↗ |
| 16 | Norges Bank ✦ (passive) | 878.46K | New | $160.07M | 0.0% | New | 1 | SEC ↗ |
| 17 | Sei Investments Co | 785.94K | n/a | $143.21M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 18 | JPMorgan Chase ✦ | 767.92K | +176.5% | $139.93M | 0.0% | ▲ Add | 2 | SEC ↗ ×8 |
| 19 | Jennison Associates Llc | 677.98K | n/a | $123.54M | 0.1% | n/c | 1 | SEC ↗ ×2 |
| 20 | D. E. Shaw & Co. ✦ | 653.32K | -55.8% | $119.05M | 0.1% | ▼ Trim | 7 | SEC ↗ ×2 |
| 21 | Clearbridge Investments, LLC | 616.99K | n/a | $112.43M | 0.1% | n/c | 1 | SEC ↗ |
| 22 | Bank Of America Corp /De/ | 609.66K | n/a | $111.09M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 23 | UBS Group AG | 538.64K | n/a | $98.15M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 24 | Bamco Inc /Ny/ | 534.25K | n/a | $97.35M | 0.3% | n/c | 1 | SEC ↗ |
| 25 | Dimensional Fund Advisors Lp | 522.97K | n/a | $95.30M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 26 | Morgan Stanley ✦ | 473.64K | -5.3% | $86.31M | 0.0% | ▼ Trim | 2 | SEC ↗ ×13 |
| 27 | Goldman Sachs Group ✦ | 473.18K | +5.4% | $86.22M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 28 | Voya Investment Management Llc | 438.32K | n/a | $79.87M | 0.1% | n/c | 1 | SEC ↗ ×3 |
| 29 | BlackRock ✦ (passive) | 377.84K | +48.7% | $68.85M | 0.0% | ▲ Add | 3 | SEC ↗ ×16 |
| 30 | Lazard Asset Management Llc | 372.45K | n/a | $67.87M | 0.1% | n/c | 1 | SEC ↗ |
| 31 | State Street Global Advisors ✦ (passive) | 361.21K | +0.6% | $65.82M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 32 | Qube Research & Technologies Ltd | 289.13K | n/a | $52.69M | 0.1% | n/c | 1 | SEC ↗ |
| 33 | Russell Investments Group, Ltd. | 280.94K | n/a | $51.19M | 0.1% | n/c | 1 | SEC ↗ ×10 |
| 34 | Nomura Asset Management… | 270.06K | n/a | $49.21M | 0.1% | n/c | 1 | SEC ↗ |
| 35 | Janus Henderson Group Plc | 248.28K | n/a | $45.24M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 36 | New York State Common Retirement… | 246.37K | n/a | $44.89M | 0.1% | n/c | 1 | SEC ↗ |
| 37 | Manufacturers Life Insurance… | 242.50K | n/a | $44.19M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Point72 Asset Management ✦ | 194.15K | -58.0% | $35.38M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 39 | Raymond James Financial Inc | 191.11K | n/a | $34.82M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 40 | Ameriprise Financial Inc | 184.10K | n/a | $33.55M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 41 | Canada Pension Plan Investment Board | 176.74K | n/a | $32.21M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Holocene Advisors, LP | 161.98K | n/a | $29.52M | 0.1% | n/c | 1 | SEC ↗ |
| 43 | Neuberger Berman Group LLC | 160.82K | n/a | $29.31M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 44 | California Public Employees… | 156.05K | n/a | $28.44M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Legal & General Group Plc | 147.72K | n/a | $26.92M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 46 | Envestnet Asset Management Inc | 115.14K | n/a | $20.98M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Aviva Plc | 109.07K | n/a | $19.88M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Wells Fargo & Company/Mn | 104.56K | n/a | $19.05M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 49 | Corient Private Wealth LP | 98.27K | n/a | $17.89M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 50 | Brown Advisory Inc | 92.36K | n/a | $16.83M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 51 | Geode Capital Management ✦ (passive) | 91.67K | -2.2% | $16.70M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 52 | Royal Bank Of Canada | 91.50K | n/a | $16.67M | 0.0% | n/c | 1 | SEC ↗ ×8 |
| 53 | The Vanguard Group ✦ (passive) | 91.50K | +3.3% | $16.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 54 | Balyasny Asset Management L.P. | 75.53K | n/a | $13.76M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Loomis Sayles & Co L P | 67.58K | n/a | $12.31M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 56 | Aberdeen Group plc | 66.06K | n/a | $12.04M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Bank Of Montreal /Can/ | 61.87K | n/a | $11.27M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 58 | Charles Schwab Investment… | 54.46K | n/a | $9.92M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | BNP Paribas Asset Management… | 51.55K | n/a | $9.39M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 60 | Bnp Paribas Financial Markets | 49.50K | n/a | $9.02M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Citadel Advisors ✦ | 41.97K | -84.5% | $7.65M | 0.0% | ▼ Trim | 7 | SEC ↗ ×2 |
| 62 | Swedbank AB | 38.70K | n/a | $7.05M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 36.26K | n/a | $6.61M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 64 | Daiwa Securities Group Inc. | 34.99K | n/a | $6.38M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Two Sigma Investments ✦ | 28.90K | -0.2% | $5.27M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Fayez Sarofim & Co | 27.80K | n/a | $5.07M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 67 | Stifel Financial Corp | 27.66K | n/a | $5.04M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 68 | Captrust Financial Advisors | 27.54K | n/a | $5.02M | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Walleye Trading LLC | 27.38K | n/a | $4.99M | 0.1% | n/c | 1 | SEC ↗ |
| 70 | Focus Partners Wealth | 25.80K | n/a | $4.70M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Deutsche Bank Ag\ | 25.01K | n/a | $4.56M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 72 | LPL Financial LLC | 24.67K | n/a | $4.49M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Truist Financial Corp | 24.59K | n/a | $4.48M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 74 | Wcm Investment Management, Llc | 24.14K | n/a | $4.42M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Hsbc Holdings Plc | 22.06K | n/a | $4.02M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 76 | Northern Trust Corp | 21.71K | n/a | $3.96M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 77 | Bank Julius Baer & Co. Ltd, Zurich | 18.50K | n/a | $3.37M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Amundi | 17.81K | n/a | $3.25M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Blair William & Co/Il | 14.75K | n/a | $2.69M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | UBS AM, a distinct business unit of… | 12.75K | n/a | $2.32M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 81 | Cetera Investment Advisers | 12.64K | n/a | $2.30M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Citigroup Inc | 12.44K | n/a | $2.27M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 83 | Td Asset Management Inc | 11.89K | n/a | $2.17M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Us Bancorp \De\ | 11.51K | n/a | $2.10M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 85 | Hotchkis & Wiley Capital Management… | 11.20K | n/a | $2.04M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | National Bank Of Canada /Fi/ | 10.27K | n/a | $1.88M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 87 | Barclays Plc | 7.43K | n/a | $1.35M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 88 | HighTower Advisors, LLC | 5.27K | n/a | $961,101 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Commonwealth Equity Services, Llc | 5.11K | n/a | $930,230 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Assetmark, Inc | 4.90K | n/a | $892,346 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Rhumbline Advisers | 4.44K | n/a | $808,324 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Creative Planning | 4.38K | n/a | $797,794 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Northwestern Mutual Wealth… | 3.94K | n/a | $717,946 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Mariner, LLC | 3.88K | n/a | $706,634 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Osaic Holdings, Inc. | 3.76K | n/a | $685,796 | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 96 | Mackenzie Financial Corp | 3.67K | n/a | $670,654 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Group One Trading Llc | 3.58K | n/a | $651,801 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | FIL Ltd | 3.58K | n/a | $651,619 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Sumitomo Mitsui Trust Group, Inc. | 3.30K | n/a | $600,962 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Kayne Anderson Rudnick Investment… | 3.12K | n/a | $569,255 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $160.07M | 0.0% |
Exited
| Glenview Capital | $65.00M | was 1.6% |
| Millennium Management | $38.88M | was 0.0% |
| T. Rowe Price | $20.53M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 414 holders, 78.10M shares, $8.66B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Sep 17
McCague Eugene Pacelli
Director · 3.25K sh · $569,625
Sep 17
Murphy Ronan Martin
Director · 5.00K sh · $875,875
Sep 16
CLIMAX JOHN DR
Director · 5.00K sh · $875,875
Aug 11
Clerkin Nigel Bernard John
Officer · 259 sh · $42,416
Aug 11
Clerkin Nigel Bernard John
Officer · 1.59K sh · $261,672
Aug 11
Clerkin Nigel Bernard John
Officer · 180 sh · $29,792
Aug 11
Grais Linda
Director · 87 sh · $14,157
Aug 11
Grais Linda
Director · 97 sh · $15,886
Aug 11
Grais Linda
Director · 590 sh · $97,037
Aug 11
Grais Linda
Director · 67 sh · $11,089
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 13
SC 13G/A: Invesco Ltd.
Aug 06
SC 13G/A: FMR LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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