Security record · archived quarter
ICLR
ICON Public Limited Company · Healthcare · Medical - Diagnostics & Research
113Tracked holders
+2Δ holders
54.24MShares held
$9.34BReported value
+10New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth +1.8% ·
share flow +7.2% ·
net new positions +2.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 113 | +2 | 54.24M | $9.34B | +10 | −7 |
| 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 | — |
| 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 | — | 9.47M | $2.97B | — | — |
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Artisan Partners Limited Partnership | 8.64M | +4.3% | $1.50B | 2.4% | ▲ Add | 3 | SEC ↗ |
| 2 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 3 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 4 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 5 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 6 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 7 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 8 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 9 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 10 | Wellington Management ✦ | 5.32M | -10.0% | $924.15M | 0.2% | ▼ Trim | 9 | SEC ↗ |
| 11 | Fidelity (FMR) ✦ | 5.27M | +26.3% | $915.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 12 | Fidelity (FMR) ✦ | 5.27M | +26.3% | $915.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 13 | Fidelity (FMR) ✦ | 5.27M | +26.3% | $915.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 14 | Fidelity (FMR) ✦ | 5.27M | +26.3% | $915.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 15 | Fidelity (FMR) ✦ | 5.27M | +26.3% | $915.68M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 16 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 17 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 18 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 19 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 20 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 21 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 22 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 23 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 24 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 25 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 26 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 27 | Invesco Ltd. | 5.26M | +35.7% | $914.45M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 28 | Harris Associates (Oakmark) ✦ | 4.47M | +2.7% | $776.16M | 1.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Principal Financial Group Inc | 2.95M | -10.9% | $512.61M | 0.3% | ▼ Trim | 3 | SEC ↗ |
| 30 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 31 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 32 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 33 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 34 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 35 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 36 | Massachusetts Financial Services Co… | 2.11M | -22.8% | $369.45M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 37 | Boston Partners | 1.62M | +94.1% | $281.40M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 38 | Boston Partners | 1.62M | +94.1% | $281.40M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 39 | Boston Partners | 1.62M | +94.1% | $281.40M | 0.2% | ▲ Add | 3 | SEC ↗ |
| 40 | D. E. Shaw & Co. ✦ | 1.36M | +13.2% | $235.75M | 0.2% | ▲ Add | 9 | SEC ↗ |
| 41 | D. E. Shaw & Co. ✦ | 1.36M | +13.2% | $235.75M | 0.2% | ▲ Add | 9 | SEC ↗ |
| 42 | Dimensional Fund Advisors Lp | 1.27M | +61.0% | $220.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 43 | Dimensional Fund Advisors Lp | 1.27M | +61.0% | $220.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 44 | Dimensional Fund Advisors Lp | 1.27M | +61.0% | $220.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 45 | Dimensional Fund Advisors Lp | 1.27M | +61.0% | $220.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 46 | Dimensional Fund Advisors Lp | 1.27M | +61.0% | $220.65M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 47 | 1832 Asset Management L.P. | 1.19M | +0.1% | $207.56M | 0.3% | ▲ Add | 3 | SEC ↗ |
| 48 | Capital World Investors ✦ | 1.11M | +0.1% | $192.13M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 49 | Ameriprise Financial Inc | 979.60K | +858.2% | $170.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Ameriprise Financial Inc | 979.60K | +858.2% | $170.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Ameriprise Financial Inc | 979.60K | +858.2% | $170.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Ameriprise Financial Inc | 979.60K | +858.2% | $170.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 53 | Ameriprise Financial Inc | 979.60K | +858.2% | $170.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 54 | Sei Investments Co | 902.18K | +19.1% | $156.72M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 55 | Sei Investments Co | 902.18K | +19.1% | $156.72M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 56 | Alliancebernstein L.P. | 1.38M | +2.5% | $152.51M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 57 | Norges Bank ✦ (passive) | 821.00K | New | $142.62M | 0.0% | New | 1 | SEC ↗ |
| 58 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 61 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 62 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 63 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 64 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 65 | Franklin Resources Inc | 771.08K | -5.5% | $136.18M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 66 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 67 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 68 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 69 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 70 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 71 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 72 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 73 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 74 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 75 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 76 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 77 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 78 | Russell Investments Group, Ltd. | 599.20K | +16.5% | $104.09M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 79 | UBS Group AG | 546.44K | -10.8% | $94.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 80 | UBS Group AG | 546.44K | -10.8% | $94.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 81 | UBS Group AG | 546.44K | -10.8% | $94.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 82 | UBS Group AG | 546.44K | -10.8% | $94.92M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 84 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 85 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 86 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 87 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 88 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 89 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 90 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 91 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 92 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 93 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 94 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 95 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 96 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 97 | BlackRock ✦ (passive) | 534.93K | +29.3% | $92.92M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 98 | Bank Of America Corp /De/ | 503.10K | -7.4% | $87.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 99 | Bank Of America Corp /De/ | 503.10K | -7.4% | $87.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 100 | Bank Of America Corp /De/ | 503.10K | -7.4% | $87.39M | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Norges Bank | $142.62M | 0.0% |
Exited
| Holocene Advisors, LP | $93.05M | was 0.2% |
| Aviva Plc | $11.79M | was 0.0% |
| Swedbank AB | $3.56M | was 0.0% |
| Two Sigma Investments | $3.20M | was 0.0% |
| Healthcare Of Ontario Pension… | $1.45M | was 0.0% |
| First Manhattan Co. Llc. | $1.11M | was 0.0% |
| Simplex Trading, Llc | $151,161 | 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)
Aug 11
O'Neill Julie
Director · 105 sh · $17,196
Aug 11
Murphy Ronan Martin
Director · 67 sh · $11,089
Aug 11
Murray Ciaran
Director · 280 sh · $45,562
Aug 11
Murray Ciaran
Director · 305 sh · $49,950
Aug 11
Murray Ciaran
Director · 1.88K sh · $309,204
Aug 11
Murray Ciaran
Director · 212 sh · $35,088
Aug 11
O'Neill Julie
Director · 95 sh · $15,458
Aug 11
O'Neill Julie
Director · 642 sh · $105,590
Aug 11
O'Neill Julie
Director · 73 sh · $12,082
Aug 11
Whitaker Anne Clem
Director · 88 sh · $14,319
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: Q2 2026 ·
Methodology ·
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