ICON PLC (ICLR) Institutional Ownership Changes & 13F Activity
ICON PLC (ICLR) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Greenhaven Associates, Cullen Value Fund, Brave Warrior Advisors, Sound Shore Management, and Sequoia Fund.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q2 2026 | Greenhaven Associates | Buy | 1,098,204 | 3,100,615 | $538,607,832 |
| Q2 2026 | Cullen Value Fund | Sell | -50 | 2,123 | $368,786 |
| Q1 2026 | Brave Warrior Advisors | Buy | 2,993,811 | 2,996,811 | $331,627,105 |
| Q1 2026 | Greenhaven Associates | Buy | 1,985,017 | 2,002,411 | $221,586,801 |
| Q1 2026 | Sound Shore Management | Buy | 626,958 | 626,958 | $69,379,172 |
| Q1 2026 | Sequoia Fund | Sell | -44,979 | 1,634,611 | $180,886,053 |
| Q1 2026 | Muhlenkamp & Co | Sell | -7,860 | 66,005 | $7,304,113 |
| Q4 2025 | Polen Capital Management | Sell | -338,255 | 105,206 | $19,170,588 |
| Q4 2025 | Sequoia Fund | Sell | -21,404 | 1,679,590 | $306,054,890 |
| Q4 2025 | Cullen Value Fund | Sell | -508 | 2,173 | $394,139 |
| Q4 2025 | Muhlenkamp & Co | Buy | 398 | 73,865 | $13,459,680 |
| Q4 2025 | Greenhaven Associates | Sell | -15 | 17,394 | $3,169,535 |
| Q3 2025 | Polen Capital Management | Sell | -96,949 | 443,461 | $77,605,716 |
| Q3 2025 | Muhlenkamp & Co | Buy | 73,467 | 73,467 | $12,856,725 |
| Q3 2025 | Sequoia Fund | Sell | -7,189 | 1,700,994 | $297,673,950 |
| Q3 2025 | Brave Warrior Advisors | Sell | -2,000 | 3,000 | $525,000 |
| Q3 2025 | Greenhaven Associates | Sell | -224 | 17,409 | $3,046,575 |
| Q3 2025 | Cullen Value Fund | Sell | -205 | 2,681 | $519,819 |
| Q2 2025 | Cantillon Capital Management | Buy | 465,197 | 465,197 | $67,662,904 |
| Q2 2025 | Sequoia Fund | Buy | 453,833 | 1,708,183 | $248,455,217 |
| Q2 2025 | Renaissance Technologies LLC | Buy | 145,900 | 324,824 | $47,245,651 |
| Q2 2025 | Polen Capital Management | Sell | -94,642 | 540,410 | $78,602,580 |
| Q2 2025 | Greenhaven Associates | Buy | 17,633 | 17,633 | $2,564,720 |
| Q2 2025 | Cullen Value Fund | Sell | -1,251 | 2,886 | $419,769 |
| Q2 2025 | Parnassus Endeavor Fund | Sell | -368 | 53,539 | $7,787,248 |
| Q1 2025 | Baupost Group | Buy | 405,000 | 405,000 | $70,871 |
| Q1 2025 | Polen Capital Management | Sell | -76,458 | 635,052 | $111,127,679 |
| Q1 2025 | Parnassus Endeavor Fund | Buy | 53,907 | 53,907 | $9,433,186 |
| Q1 2025 | Renaissance Technologies LLC | Buy | 53,125 | 178,924 | $31,309,911 |
| Q1 2025 | Sequoia Fund | Sell | -11,190 | 1,254,350 | $219,498,707 |
Frequently asked questions about ICLR activity
Which institutional owners are buying ICLR?
Institutional owners buying ICLR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ICLR activity?
"Buy" means an investor increased their reported position in ICLR compared to the prior reporting period. This reflects growing exposure to ICON PLC (ICLR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ICLR increasing?
Institutional interest in ICLR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.