ICON
ICLR · NASDAQ
Who owns ICLR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 51.6% of ICLR’s shares.
- Artisan Partners Limited Partnership11.2%
- Wellington Management Company, LLP6.9%
- Harris Associates L.P.5.8%
- Invesco Advisers, Inc.5.3%
- Next 6 largest institutions22.4%
- All other shareholders48.4%
| Holder | Shares | % of shares |
|---|---|---|
| Artisan Partners Limited Partnership | 8.64M | 11.19% |
| Wellington Management Company, LLP | 5.32M | 6.90% |
| Harris Associates L.P. | 4.47M | 5.79% |
| Invesco Advisers, Inc. | 4.08M | 5.29% |
| Fidelity Management & Research Company LLC | 3.99M | 5.17% |
| Brave Warrior Advisors, LLC | 3.15M | 4.09% |
| Greenhaven Associates, Inc. | 3.10M | 4.02% |
| Principal Global Investors (Equity) | 2.95M | 3.82% |
| Ruane, Cunniff & Goldfarb L.P. | 2.05M | 2.65% |
| MFS Investment Management | 2.02M | 2.62% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Artisan International Value Fund | 6.74M | 8.74% |
| Oakmark Select Fund | 2.37M | 3.07% |
| Vanguard Health Care Fund | 1.26M | 1.63% |
| Vanguard Windsor Fund | 1.18M | 1.53% |
| Invesco Small Cap Value Fund | 1.04M | 1.35% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $4.04M (37 trades) of ICLR on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| McCague Eugene Pacelli | Option exercise | 3.25K | — |
| McCague Eugene Pacelli | Sale | 3.25K | $569.63K |
| McCague Eugene Pacelli | Option exercise | 3.25K | $409.28K |
| Murphy Ronan Martin | Option exercise | 5.00K | — |
| Murphy Ronan Martin | Sale | 5.00K | $875.88K |
| Murphy Ronan Martin | Option exercise | 5.00K | $629.33K |
| CLIMAX JOHN DR | Option exercise | 5.00K | — |
| CLIMAX JOHN DR | Sale | 5.00K | $875.88K |
| CLIMAX JOHN DR | Option exercise | 5.00K | $629.33K |
| Whitaker Anne Clem | Sale | 67 | $11.09K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Kevin HernHouse | Sale | $15K–$50K | Aug 14, 2026 |
| Kevin HernHouse | Sale | $100K–$250K | Mar 5, 2026 |
| Julia LetlowHouse | Sale | $1K–$15K | Feb 12, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.80M
- Days to cover
- 2.54
- % of shares outstanding
- 3.63%
- Average daily volume
- 1.10M
- Change since last report
- +6.6%
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