Quick Takeaways
- ICLR - ICON PLC has 11 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 11 Insiders of ICON PLC
- Symbol
- ICLR on Nasdaq
- Location
- Dublin 18, Ireland
What Changed
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 02 May 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
ICON PLC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| John Dr Climax | Director | $29,942,215 | Mixed | 18 Mar 2026 | ||
| Stephen A. Cutler | Director | $8,252,047 | Mixed | 18 Mar 2026 | ||
| Ciaran Murray | Director | $2,128,848 | Mixed | 18 Mar 2026 | ||
| Linda Grais | Director | $548,658 | Mixed | 18 Mar 2026 | ||
| Barry Edward Balfe | Chief Executive Officer, Director | $464,033 | Mixed | 18 Mar 2026 | ||
| Nigel Bernard John Clerkin | Chief Financial Officer | $401,266 | Mixed | 18 Mar 2026 | ||
| Ronan Martin Murphy | Director | $307,690 | Mixed | 18 Mar 2026 | ||
| Eugene Pacelli McCague | Director | $303,942 | Mixed | 18 Mar 2026 | ||
| Julie O'Neill | Director | $280,834 | Mixed | 18 Mar 2026 | ||
| Emer Lyons | Chief Accounting Officer | $78,275 | Mixed | 18 Mar 2026 | ||
| Anne Clem Whitaker | Director | Mixed | 18 Mar 2026 |
Top shareholders of ICON PLC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Artisan Partners Limited Partnership |
13F
13D/G
|
Company · Artisan Partners Asset Management Inc. |
11%
from 13D/G
|
6,873,977
|
$1,252,576,089 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
|
Company |
6%
|
4,637,137
|
$811,498,975 | $0 | 30 Sep 2025 | |
| ORBIS INVESTMENT MANAGEMENT LTD |
13D/G
|
— |
5.5%
|
4,208,000
|
$792,029,760 | +$13,894,965 | 31 Dec 2025 | |
| Orbis Allan Gray Ltd |
13F
|
Company |
5.5%
|
4,214,661
|
$767,995,527 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
4.9%
|
3,756,896
|
$684,581,530 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
4%
|
3,097,895
|
$564,498,405 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
3.9%
|
3,001,535
|
$546,939,708 | — | 31 Dec 2025 | |
| FRANKLIN RESOURCES INC |
13F
|
Company |
3.9%
|
2,993,336
|
$545,410,252 | — | 31 Dec 2025 | |
| Ninety One UK Ltd |
13F
|
Company |
3.8%
|
2,945,810
|
$536,785,450 | — | 31 Dec 2025 | |
| HARRIS ASSOCIATES L P |
13F
|
Company |
3.3%
|
2,510,166
|
$457,402,449 | — | 31 Dec 2025 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
13F
|
Company |
3.1%
|
2,357,033
|
$429,498,553 | — | 31 Dec 2025 | |
| Ruane, Cunniff & Goldfarb L.P. |
13F
|
Company |
2.2%
|
1,679,590
|
$306,054,890 | — | 31 Dec 2025 | |
| Capital World Investors |
13F
|
Company |
2%
|
1,496,479
|
$272,688,403 | — | 31 Dec 2025 | |
| WGI DM, LLC |
13F
|
Company |
1.8%
|
1,396,009
|
$254,380,760 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
1.7%
|
1,272,462
|
$231,868,026 | — | 31 Dec 2025 | |
| Boston Partners |
13F
|
Company |
1.6%
|
1,258,903
|
$229,400,369 | — | 31 Dec 2025 | |
| 1832 Asset Management L.P. |
13F
|
Company |
1.6%
|
1,204,327
|
$219,452,466 | — | 31 Dec 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
1.4%
|
1,080,192
|
$203,799,825 | — | 31 Dec 2025 | |
| Trinity Street Asset Management LLP |
13F
|
Company |
1.4%
|
1,072,428
|
$195,417,830 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
1.4%
|
1,038,013
|
$189,146,980 | — | 31 Dec 2025 | |
| First Pacific Advisors, LP |
13F
|
Company |
1.3%
|
980,804
|
$178,722,105 | — | 31 Dec 2025 | |
| LYRICAL ASSET MANAGEMENT LP |
13F
|
Company |
1.3%
|
967,961
|
$176,381,853 | — | 31 Dec 2025 | |
| EARNEST PARTNERS LLC |
13F
|
Company |
1.2%
|
890,076
|
$162,189,649 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.1%
|
878,462
|
$160,073,346 | — | 31 Dec 2025 | |
| SEI INVESTMENTS CO |
13F
|
Company |
1%
|
785,937
|
$143,213,292 | — | 31 Dec 2025 | |
| BRANDES INVESTMENT PARTNERS, LP |
13F
|
Company |
1%
|
776,732
|
$141,538,361 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1%
|
767,924
|
$139,931,112 | — | 31 Dec 2025 | |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. |
13F
|
Company |
0.97%
|
743,548
|
$135,489,317 | — | 31 Dec 2025 | |
| JENNISON ASSOCIATES LLC |
13F
|
Company |
0.88%
|
677,981
|
$123,541,699 | — | 31 Dec 2025 | |
| D. E. Shaw & Co., Inc. |
13F
|
Company |
0.85%
|
653,319
|
$119,047,788 | — | 31 Dec 2025 | |
| EQUITY INVESTMENT CORP |
13F
|
Company |
0.81%
|
623,188
|
$113,557,275 | — | 31 Dec 2025 | |
| Clearbridge Investments, LLC |
13F
|
Company |
0.8%
|
616,991
|
$112,428,100 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.79%
|
609,665
|
$111,093,156 | — | 31 Dec 2025 | |
| Stephens Investment Management Group LLC |
13F
|
Company |
0.71%
|
542,996
|
$98,944,731 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.7%
|
538,637
|
$98,150,434 | — | 31 Dec 2025 | |
| BAMCO INC /NY/ |
13F
|
Company |
0.7%
|
534,248
|
$97,350,671 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.68%
|
522,970
|
$95,298,612 | — | 31 Dec 2025 | |
| Fisher Funds Management LTD |
13F
|
Company |
0.67%
|
513,102
|
$93,207,543 | — | 31 Dec 2025 | |
| ALTRINSIC GLOBAL ADVISORS LLC |
13F
|
Company |
0.66%
|
507,824
|
$92,535,689 | — | 31 Dec 2025 | |
| FIDUCIARY MANAGEMENT INC /WI/ |
13F
|
Company |
0.63%
|
480,996
|
$87,647,091 | — | 31 Dec 2025 | |
| River Road Asset Management, LLC |
13F
|
Company |
0.62%
|
475,413
|
$86,629,757 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.62%
|
473,639
|
$86,306,736 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.62%
|
473,175
|
$86,222,039 | — | 31 Dec 2025 | |
| Ninety One North America, Inc. |
13F
|
Company |
0.59%
|
455,399
|
$82,982,811 | — | 31 Dec 2025 | |
| VOYA INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.57%
|
438,319
|
$79,870,569 | — | 31 Dec 2025 | |
| Brandywine Global Investment Management, LLC |
13F
|
Company |
0.52%
|
399,813
|
$71,680,573 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
0.49%
|
377,843
|
$68,850,551 | — | 31 Dec 2025 | |
| LAZARD ASSET MANAGEMENT LLC |
13F
|
Company |
0.49%
|
372,447
|
$67,867,283 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.47%
|
361,206
|
$65,818,957 | — | 31 Dec 2025 | |
| SAMLYN CAPITAL, LLC |
13F
|
Company |
0.44%
|
337,681
|
$61,532,231 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for ICON PLC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Barry Edward Balfe | ICLR | Ordinary Shares | 0 | 4,458 | 18 Mar 2026 | Direct | ||||
| Nigel Bernard John Clerkin | ICLR | Ordinary Shares | 0 | 3,855 | 18 Mar 2026 | Direct | ||||
| Stephen A. Cutler | ICLR | Ordinary Shares | 0 | 79,278 | 18 Mar 2026 | Direct | ||||
| Linda Grais | ICLR | Ordinary Shares | 0 | 5,271 | 18 Mar 2026 | Direct | ||||
| Emer Lyons | ICLR | Ordinary Shares | 0 | 752 | 18 Mar 2026 | Direct | ||||
| Julie O'Neill | ICLR | Ordinary Shares | 0 | 2,698 | 18 Mar 2026 | Direct | ||||
| Eugene Pacelli McCague | ICLR | Ordinary Shares | 0 | 2,920 | 18 Mar 2026 | Direct | ||||
| Ronan Martin Murphy | ICLR | Ordinary Shares | 0 | 2,956 | 18 Mar 2026 | Direct | ||||
| John Dr Climax | ICLR | Ordinary Shares | 0 | 1,310 | 18 Mar 2026 | Held by White Poplar Limited | ||||
| John Dr Climax | ICLR | Ordinary Shares | 0 | 285,151 | 18 Mar 2026 | Held by Poplar Limited | ||||
| John Dr Climax | ICLR | Ordinary Shares | 0 | 1,196 | 18 Mar 2026 | Direct | ||||
| Ciaran Murray | ICLR | Ordinary Shares | 0 | 20,452 | 18 Mar 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.