ICON Public Limited Company (ICLR) Ownership
ICLR ownership summary
as of October 18, 2026- Institutions
- 107.8% of shares outstanding
- Insiders
- 0.45% of shares outstanding
- Shares outstanding
- 77.2M
- Float
- 77.1M shares available to trade
- Short interest
- 4.10% 2.8M shares short
- Days to cover
- 2.69 short interest up 6.6% vs prior month
- Institutions 107.83%
- Insiders 0.45%
ICLR top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Artisan Partners Limited Partnership | 11.19% | 8.6M | $1.47B | +357,461 (+4.3%) | June 30, 2026 |
| 2 | Wellington Management Company LLP | 6.90% | 5.3M | $905.4M | −592,983 (−10.0%) | June 30, 2026 |
| 3 | FMR Inc | 6.83% | 5.3M | $897.1M | +1.1M (+26.3%) | June 30, 2026 |
| 4 | Amvescap Plc. | 6.82% | 5.3M | $895.9M | +1.4M (+35.7%) | June 30, 2026 |
| 5 | Harris Associates L.P. | 5.79% | 4.5M | $760.4M | +116,829 (+2.7%) | June 30, 2026 |
| 6 | Brave Warrior Advisors LLC | 4.09% | 3.2M | $536.6M | +156,497 (+5.2%) | June 30, 2026 |
| 7 | Greenhaven Associates Inc | 4.02% | 3.1M | $527.7M | +1.1M (+54.8%) | June 30, 2026 |
| 8 | Principal Financial Group Inc | 3.82% | 3.0M | $502.2M | −360,797 (−10.9%) | June 30, 2026 |
| 9 | Massachusetts Financial Services Company | 2.73% | 2.1M | $358.3M | −622,653 (−22.8%) | June 30, 2026 |
| 10 | Ruane, Cunniff & Goldfarb L.P. | 2.65% | 2.0M | $348.5M | +413,476 (+25.3%) | June 30, 2026 |
| 11 | Boston Partners Global Investors, Inc | 2.10% | 1.6M | $275.8M | +785,591 (+94.1%) | June 30, 2026 |
| 12 | Trinity Street Asset Management LLP | 1.99% | 1.5M | $261.3M | +327,314 (+27.1%) | June 30, 2026 |
| 13 | AllianceBernstein L.P. | 1.79% | 1.4M | $234.5M | +33,601 (+2.5%) | June 30, 2026 |
| 14 | D. E. Shaw & Co LP | 1.76% | 1.4M | $231.0M | +158,588 (+13.2%) | June 30, 2026 |
| 15 | Dimensional Fund Advisors, Inc. | 1.65% | 1.3M | $216.2M | +481,402 (+61.0%) | June 30, 2026 |
| 16 | Earnest Partners LLC | 1.61% | 1.2M | $211.5M | +356,849 (+40.3%) | June 30, 2026 |
| 17 | Maple Rock Capital Partners, Inc. | 1.55% | 1.2M | $204.1M | +864,300 (+257.8%) | June 30, 2026 |
| 18 | 1832 Asset Management L.P | 1.55% | 1.2M | $203.3M | +1,620 (+0.1%) | June 30, 2026 |
| 19 | Brandes Investment Partners & Co | 1.54% | 1.2M | $201.8M | −249,279 (−17.4%) | June 30, 2026 |
| 20 | Capital World Investors | 1.43% | 1.1M | $188.2M | +1,225 (+0.1%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 16 holders added 7.6M shares and 4 cut 1.8M.
ICLR top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Artisan International Value Investor | 8.74% | 6.7M | $1.15B | +421,767 (+6.7%) | June 30, 2026 |
| 2 | Oakmark Select Investor | 3.07% | 2.4M | $403.2M | +113,000 (+5.0%) | June 30, 2026 |
| 3 | Vanguard Health Care Inv | 1.63% | 1.3M | $213.9M | −423,902 (−25.2%) | June 30, 2026 |
| 4 | Ninety One GSF Glb Frchs I Acc USD | 1.62% | 1.2M | $212.1M | +1.2M (0.0%) | January 31, 2026 |
| 5 | Vanguard Windsor Investor Shares | 1.53% | 1.2M | $200.4M | −19,925 (−1.7%) | June 30, 2026 |
| 6 | Invesco Small Cap Value A | 1.42% | 1.1M | $186.5M | +53,388 (+5.1%) | August 31, 2026 |
| 7 | Fidelity Low-Priced Stock | 1.26% | 974K | $165.7M | +83,000 (+9.3%) | July 31, 2026 |
| 8 | Sequoia ETF | 1.14% | 876K | $149.1M | +244,831 (+38.8%) | June 30, 2026 |
| 9 | American Funds New Perspective A | 1.13% | 876K | $149.0M | — | September 30, 2026 |
| 10 | Vanguard Explorer Inv | 1.06% | 819K | $139.4M | +85,156 (+11.6%) | June 30, 2026 |
| 11 | Invesco Value Opportunities A | 1.02% | 791K | $134.6M | +23,539 (+3.1%) | August 31, 2026 |
| 12 | Invesco Comstock A | 1.01% | 776K | $132.1M | — | August 31, 2026 |
| 13 | Strategic Advisers Fidelity US TtlStk | 0.88% | 677K | $115.1M | +18,800 (+2.9%) | August 31, 2026 |
| 14 | Principal International Equity Inst | 0.85% | 652K | $111.0M | — | September 30, 2026 |
| 15 | MFS Mid Cap Value A | 0.64% | 492K | $83.8M | −5,776 (−1.2%) | August 31, 2026 |
| 16 | Columbia Small Cap Growth Inst | 0.61% | 473K | $80.6M | — | August 31, 2026 |
| 17 | Fidelity Series Stk Selec Lg Cp Val | 0.59% | 453K | $77.1M | +26,100 (+6.1%) | August 31, 2026 |
| 18 | Kempen Intl Fds MercLan Glbl Eq F | 0.56% | 436K | $74.1M | — | August 31, 2026 |
| 19 | Scotia Wealth US Dividend Pool K | 0.55% | 427K | $72.6M | — | June 30, 2026 |
| 20 | Fidelity Value | 0.51% | 392K | $66.7M | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ICLR shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ICLR
Institutional investors own 107.8% of ICON Public's shares and insiders 0.45%. The largest holder is Artisan Partners Limited Partnership with 11.19% of the shares (8.6M), as of June 30, 2026. Among the top 20 institutions, 16 added shares and 4 reduced their stake in the latest filings. Short interest is 4.10% of the float, or 2.69 days of average trading volume. The share count rose 23.7% since 2014.
Related: ICLR analyst forecast, ICLR key metrics. See the ICLR stock overview for the latest quote and news.
ICLR ownership FAQ
Who owns the most ICON Public stock?
The largest shareholders of ICON Public are Artisan Partners Limited Partnership (11.19%), Wellington Management Company LLP (6.90%), FMR Inc (6.83%), Amvescap Plc. (6.82%), Harris Associates L.P. (5.79%).
What percentage of ICON Public is owned by institutions?
Institutions hold 107.8% of ICON Public's shares outstanding; insiders hold 0.45%.
Which funds own ICON Public?
The largest fund holders of ICON Public are Artisan International Value Investor (8.74%), Oakmark Select Investor (3.07%), Vanguard Health Care Inv (1.63%), Ninety One GSF Glb Frchs I Acc USD (1.62%), Vanguard Windsor Investor Shares (1.53%).
What is ICON Public's short interest?
2.8M shares of ICON Public were sold short, 4.10% of the float; at the average daily volume it would take 2.69 days to cover.
How many shares of ICON Public are outstanding?
ICON Public has 77.2M shares outstanding, of which 77.1M are in the public float.