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IE Biotechnology & Medical Research

ICON PLC (ICLR)

Track

Recent insider trading activity at ICON PLC primarily consists of proposed sales by officers and directors. The most recent transactions occurred in March 2026, with significant sales noted from Barry Edward Balfe. Prior to this, substantial sales were also reported in late 2025 by Stephen Cutler and Nigel Clerkin.
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Ticker: ICLR Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
BARRY EDWARD BALFE
Officer
1 sale — total 300,875 USD
Proposed sale 9 Mar 2026
Value US$4,512,106.23 | Price 358.46 | Shares 64,679
Proposed sale 4 Mar 2026
Value US$3,747,671.17 | Price 189.97 | Shares 22,712
Proposed sale 3 Nov 2025
Value US$249,289.34 | Price 169.24 | Shares 1,473
Proposed sale 2 Oct 2025
Value US$3,594,781.19 | Price 190.19 | Shares 18,901
Proposed sale 8 Aug 2025
Value US$59,992.98 | Price 157.46 | Shares 381
Proposed sale 8 Aug 2025
Value US$178,876.72 | Price 157.46 | Shares 1,136
Proposed sale 23 May 2025
Value US$42,384.43 | Price 126.90 | Shares 334
Proposed sale 23 May 2025
Value US$42,384.43 | Price 126.90 | Shares 334
Proposed sale 23 May 2025
Value US$42,384.43 | Price 126.90 | Shares 334
Proposed sale 23 May 2025
Value US$42,384.43 | Price 126.90 | Shares 334
Proposed sale 23 May 2025
Value US$46,064.52 | Price 126.90 | Shares 363
Proposed sale 23 May 2025
Value US$62,688.35 | Price 126.90 | Shares 494
Proposed sale 19 May 2025
Value US$200,131.10 | Price 130.04 | Shares 1,539
Proposed sale 19 May 2025
Value US$1,000,421.57 | Price 130.04 | Shares 7,693
Proposed sale 6 May 2025
Value US$20,022,800.00 | Price 143.02 | Shares 140,000
Proposed sale 17 Mar 2025
Value US$288,082.10 | Price 187.07 | Shares 1,540
Proposed sale 4 Mar 2025
Value US$145,214.28 | Price 182.43 | Shares 796
Proposed sale 4 Mar 2025
Value US$216,179.55 | Price 182.43 | Shares 1,185
Proposed sale 4 Mar 2025
Value US$221,834.88 | Price 182.43 | Shares 1,216
Proposed sale 4 Mar 2025
Value US$1,002,635.28 | Price 182.43 | Shares 5,496
Proposed sale 5 Dec 2024
Value US$3,753,750.00 | Price 214.50 | Shares 17,500
Proposed sale 26 Aug 2024
Value US$3,794,379.53 | Price 320.82 | Shares 11,827
Proposed sale 30 Jul 2024
Value US$1,972,303.84 | Price 330.42 | Shares 5,969
Proposed sale 29 Jul 2024
Value US$8,496,637.24 | Price 325.99 | Shares 26,064
Proposed sale 29 Jul 2024
Value US$2,062,668.84 | Price 324.32 | Shares 6,360
Proposed sale 5 Jun 2024
Value US$1,523,793.92 | Price 225.28 | Shares 6,764
Proposed sale 5 Jun 2024
Value US$1,604,533.00 | Price 329.00 | Shares 4,877
Proposed sale 3 Jun 2024
Value US$109,310.50 | Price 326.30 | Shares 335
Proposed sale 23 May 2024
Value US$143,074.52 | Price 317.24 | Shares 451
Proposed sale 23 May 2024
Value US$231,877.84 | Price 316.77 | Shares 732
Proposed sale 23 May 2024
Value US$155,011.56 | Price 318.30 | Shares 487
Proposed sale 23 May 2024
Value US$155,230.73 | Price 316.80 | Shares 490
Proposed sale 23 May 2024
Value US$143,333.55 | Price 318.52 | Shares 450
Proposed sale 23 May 2024
Value US$155,045.26 | Price 318.37 | Shares 487
Proposed sale 23 May 2024
Value US$143,556.75 | Price 319.02 | Shares 450
Proposed sale 15 May 2024
Value US$3,392,387.44 | Price 321.34 | Shares 10,557
Proposed sale 10 May 2024
Value US$2,509,319.24 | Price 316.43 | Shares 7,930
Proposed sale 18 Mar 2024
Value US$582,084.48 | Price 332.62 | Shares 1,750
Proposed sale 13 Mar 2024
Value US$166,408.00 | Price 341.00 | Shares 488
Proposed sale 8 Mar 2024
Value US$68,298.00 | Price 341.49 | Shares 200
Proposed sale 6 Mar 2024
Value US$5,188,132.13 | Price 335.98 | Shares 15,442
Proposed sale 4 Mar 2024
Value US$263,002.46 | Price 321.52 | Shares 818
Proposed sale 4 Mar 2024
Value US$510,594.30 | Price 322.75 | Shares 1,582
Proposed sale 4 Mar 2024
Value US$1,935,996.03 | Price 322.29 | Shares 6,007
Proposed sale 4 Mar 2024
Value US$365,415.41 | Price 321.95 | Shares 1,135
Proposed sale 4 Mar 2024
Value US$77,705.16 | Price 321.10 | Shares 242
Proposed sale 26 Feb 2024
Value US$2,220,929.06 | Price 316.33 | Shares 7,021
Proposed sale 26 Feb 2024
Value US$1,091,189.62 | Price 317.11 | Shares 3,441
Proposed sale 13 Dec 2023
Value US$13,516,800.00 | Price 225.28 | Shares 60,000
Proposed sale 21 Nov 2023
Value US$5,018,732.87 | Price 271.03 | Shares 18,517
Proposed sale 21 Nov 2023
Value US$423,381.41 | Price 275.28 | Shares 1,538
Proposed sale 16 Nov 2023
Value US$8,088,749.96 | Price 267.79 | Shares 30,206
Proposed sale 7 Nov 2023
Value US$272,823.29 | Price 260.08 | Shares 1,049
Proposed sale 15 Sep 2023
Value US$663,396.00 | Price 265.36 | Shares 2,500
Proposed sale 14 Sep 2023
Value US$3,583,971.90 | Price 265.48 | Shares 13,500
Proposed sale 25 Aug 2023
Value US$1,263,075.00 | Price 252.62 | Shares 5,000
Proposed sale 8 Aug 2023
Value US$2,656,726.73 | Price 255.21 | Shares 10,410
Proposed sale 4 Aug 2023
Value US$127,880.35 | Price 255.25 | Shares 501
Proposed sale 1 Aug 2023
Value US$1,734,347.05 | Price 248.90 | Shares 6,968
Proposed sale 31 Jul 2023
Value US$990,993.64 | Price 252.55 | Shares 3,924
Proposed sale 31 Jul 2023
Value US$1,306,776.73 | Price 251.21 | Shares 5,202
Proposed sale 14 Jun 2023
Value US$102,828.88 | Price 233.70 | Shares 440
Proposed sale 9 Jun 2023
Value US$4,436,035.90 | Price 222.97 | Shares 19,895
Proposed sale 2 Jun 2023
Value US$99,991.73 | Price 216.90 | Shares 461
Proposed sale 22 May 2023
Value US$103,275.92 | Price 213.38 | Shares 484
Proposed sale 22 May 2023
Value US$103,264.35 | Price 213.36 | Shares 484
Proposed sale 22 May 2023
Value US$154,663.38 | Price 213.33 | Shares 725
Proposed sale 22 May 2023
Value US$103,265.27 | Price 213.36 | Shares 484
Proposed sale 22 May 2023
Value US$103,275.92 | Price 213.38 | Shares 484
Proposed sale 22 May 2023
Value US$103,275.92 | Price 213.38 | Shares 484
Proposed sale 22 May 2023
Value US$95,395.07 | Price 213.41 | Shares 447
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-03-09 2026-03-09 PrS Proposed sale
BARRY EDWARD BALFE

Officer

Officer
64,679
358.46
US$4,512,106 		64,679 358.46 US$4,512,106
2026-03-04 2026-03-04 PrS Proposed sale
BARRY EDWARD BALFE

Officer

Officer
22,712
189.97
US$3,747,671 		22,712 189.97 US$3,747,671
2025-11-03 2025-11-03 PrS Proposed sale
NIGEL CLERKIN

Officer

Officer
72,467
36.37
US$4,743,704 		72,467 36.37 US$4,743,704
2025-10-02 2025-10-02 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
18,901
190.19
US$3,594,781 		18,901 190.19 US$3,594,781
2025-08-08 2025-08-08 PrS Proposed sale
BARRY EDWARD BALFE

Officer

Officer
381
157.46
US$59,993 		381 157.46 US$59,993
2025-08-08 2025-08-08 PrS Proposed sale
THOMAS NOEL O'LEARY

Officer

Officer
1,136
157.46
US$178,877 		1,136 157.46 US$178,877
2025-05-23 2025-05-23 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
334
126.90
US$42,384 		334 126.90 US$42,384
2025-05-23 2025-05-23 PrS Proposed sale
EUGENE PACELLI MCCAGUE

Officer

Officer
334
126.90
US$42,384 		334 126.90 US$42,384
2025-05-23 2025-05-23 PrS Proposed sale
1.6
LINDA SUE GRAIS

Officer

Officer
334
126.90
US$42,384 		334 126.90 US$42,384
2025-05-23 2025-05-23 PrS Proposed sale
JOHN CLIMAX

Officer

Officer
334
126.90
US$42,384 		334 126.90 US$42,384
2025-05-23 2025-05-23 PrS Proposed sale
JULIE ANN ONEILL

Officer

Officer
363
126.90
US$46,065 		363 126.90 US$46,065
2025-05-23 2025-05-23 PrS Proposed sale
CIARAN MURRAY

Officer

Officer
494
126.90
US$62,688 		494 126.90 US$62,688
2025-05-19 2025-05-19 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
1,539
130.04
US$200,131 		1,539 130.04 US$200,131
2025-05-19 2025-05-19 PrS Proposed sale
JOHN CLIMAX

Officer

Officer
7,693
130.04
US$1,000,422 		7,693 130.04 US$1,000,422
2025-05-06 2025-05-06 PrS Proposed sale
Dr. John Climax

Director

Non-Executive Director
140,000
143.02
US$20,022,800 		140,000 143.02 US$20,022,800
2025-03-17 2025-03-17 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
1,540
187.07
US$288,082 		1,540 187.07 US$288,082
2025-03-04 2025-03-04 PrS Proposed sale
THOMAS NOEL O LEARY

Officer

Officer
796
182.43
US$145,214 		796 182.43 US$145,214
2025-03-04 2025-03-04 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
1,185
182.43
US$216,180 		1,185 182.43 US$216,180
2025-03-04 2025-03-04 PrS Proposed sale
BARRY EDWARD BALFE

Officer

Officer
1,216
182.43
US$221,835 		1,216 182.43 US$221,835
2025-03-04 2025-03-04 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
5,496
182.43
US$1,002,635 		5,496 182.43 US$1,002,635
2024-12-05 2024-12-05 PrS Proposed sale
Poplar Limited DNE

Director

Non-Executive Director
17,500
214.50
US$3,753,750 		17,500 214.50 US$3,753,750
2024-08-26 2024-08-26 PrS Proposed sale
UTE BERGER

Officer

Officer
11,827
320.82
US$3,794,380 		11,827 320.82 US$3,794,380
2024-07-30 2024-07-30 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
5,969
330.42
US$1,972,304 		5,969 330.42 US$1,972,304
2024-07-29 2024-07-29 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
26,064
325.99
US$8,496,637 		26,064 325.99 US$8,496,637
2024-07-29 2024-07-29 PrS Proposed sale
THOMAS NOEL O' LEARY

Officer

Officer
6,360
324.32
US$2,062,669 		6,360 324.32 US$2,062,669
2024-06-05 2024-06-05 PrS Proposed sale
White Poplar Limited

Director

Non-Executive Director
6,764
225.28
US$1,523,794 		6,764 225.28 US$1,523,794
2024-06-05 2024-06-05 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
4,877
329.00
US$1,604,533 		4,877 329.00 US$1,604,533
2024-06-03 2024-06-03 PrS Proposed sale
UTE BERGER

Officer

Officer
335
326.30
US$109,310 		335 326.30 US$109,310
2024-05-23 2024-05-23 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
451
317.24
US$143,075 		451 317.24 US$143,075
2024-05-23 2024-05-23 PrS Proposed sale
CIARAN MURRAY

Officer

Officer
732
316.77
US$231,878 		732 316.77 US$231,878
2024-05-23 2024-05-23 PrS Proposed sale
EUGENE PACELLI MCCAGUE

Officer

Officer
487
318.30
US$155,012 		487 318.30 US$155,012
2024-05-23 2024-05-23 PrS Proposed sale
JULIE ANN O'NEILL

Officer

Officer
490
316.80
US$155,231 		490 316.80 US$155,231
2024-05-23 2024-05-23 PrS Proposed sale
1.6
LINDA SUE GRAIS

Officer

Officer
450
318.52
US$143,334 		450 318.52 US$143,334
2024-05-23 2024-05-23 PrS Proposed sale
JOAN GARAHY

Officer

Officer
487
318.37
US$155,045 		487 318.37 US$155,045
2024-05-23 2024-05-23 PrS Proposed sale
JOHN CLIMAX

Officer

Officer
450
319.02
US$143,557 		450 319.02 US$143,557
2024-05-15 2024-05-15 PrS Proposed sale
JOHN CLIMAX

Officer

Officer
10,557
321.34
US$3,392,387 		10,557 321.34 US$3,392,387
2024-05-10 2024-05-10 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
7,930
316.43
US$2,509,319 		7,930 316.43 US$2,509,319
2024-03-18 2024-03-18 PrS Proposed sale
EUGENE PACELLI MCCAGUE

Officer

Officer
1,750
332.62
US$582,084 		1,750 332.62 US$582,084
2024-03-13 2024-03-13 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
488
341.00
US$166,408 		488 341.00 US$166,408
2024-03-08 2024-03-08 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
200
341.49
US$68,298 		200 341.49 US$68,298
2024-03-06 2024-03-06 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
15,442
335.98
US$5,188,132 		15,442 335.98 US$5,188,132
2024-03-04 2024-03-04 PrS Proposed sale
THOMAS NOEL O LEARY

Officer

Officer
818
321.52
US$263,002 		818 321.52 US$263,002
2024-03-04 2024-03-04 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
1,582
322.75
US$510,594 		1,582 322.75 US$510,594
2024-03-04 2024-03-04 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
6,007
322.29
US$1,935,996 		6,007 322.29 US$1,935,996
2024-03-04 2024-03-04 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
1,135
321.95
US$365,415 		1,135 321.95 US$365,415
2024-03-04 2024-03-04 PrS Proposed sale
UTE BERGER

Officer

Officer
242
321.10
US$77,705 		242 321.10 US$77,705
2024-02-26 2024-02-26 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
7,021
316.33
US$2,220,929 		7,021 316.33 US$2,220,929
2024-02-26 2024-02-26 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
3,441
317.11
US$1,091,190 		3,441 317.11 US$1,091,190
2023-12-13 2023-12-13 PrS Proposed sale
John Climax

Director

Non-Executive Director
60,000
225.28
US$13,516,800 		60,000 225.28 US$13,516,800
2023-11-21 2023-11-21 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
18,517
271.03
US$5,018,733 		18,517 271.03 US$5,018,733
2023-11-21 2023-11-21 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
1,538
275.28
US$423,381 		1,538 275.28 US$423,381
2023-11-16 2023-11-16 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
30,206
267.79
US$8,088,750 		30,206 267.79 US$8,088,750
2023-11-07 2023-11-07 PrS Proposed sale
THOMAS NOEL O LEARY

Officer

Officer
1,049
260.08
US$272,823 		1,049 260.08 US$272,823
2023-09-15 2023-09-15 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
2,500
265.36
US$663,396 		2,500 265.36 US$663,396
2023-09-14 2023-09-14 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
13,500
265.48
US$3,583,972 		13,500 265.48 US$3,583,972
2023-08-25 2023-08-25 PrS Proposed sale
Poplar LTD

Director

Non-Executive Director
5,000
252.62
US$1,263,075 		5,000 252.62 US$1,263,075
2023-08-08 2023-08-08 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
10,410
255.21
US$2,656,727 		10,410 255.21 US$2,656,727
2023-08-04 2023-08-04 PrS Proposed sale
DIARMAID CUNNINGHAM

Officer

Officer
501
255.25
US$127,880 		501 255.25 US$127,880
2023-08-01 2023-08-01 PrS Proposed sale
THOMAS NOEL O LEARY

Officer

Officer
6,968
248.90
US$1,734,347 		6,968 248.90 US$1,734,347
2023-07-31 2023-07-31 PrS Proposed sale
THOMAS NOEL O LEARY

Officer

Officer
3,924
252.55
US$990,994 		3,924 252.55 US$990,994
2023-07-31 2023-07-31 PrS Proposed sale
STEPHEN CUTLER

Officer

Officer
5,202
251.21
US$1,306,777 		5,202 251.21 US$1,306,777
2023-06-14 2023-06-14 PrS Proposed sale
BRENDAN BRENNAN

Officer

Officer
440
233.70
US$102,829 		440 233.70 US$102,829
2023-06-09 2023-06-09 PrS Proposed sale
UTE BERGER

Officer

Officer
19,895
222.97
US$4,436,036 		19,895 222.97 US$4,436,036
2023-06-02 2023-06-02 PrS Proposed sale
UTE BERGER

Officer

Officer
461
216.90
US$99,992 		461 216.90 US$99,992
2023-05-22 2023-05-22 PrS Proposed sale
JULIE ANN ONEILL

Officer

Officer
484
213.38
US$103,276 		484 213.38 US$103,276
2023-05-22 2023-05-22 PrS Proposed sale
RONAN MARTIN MURPHY

Officer

Officer
484
213.36
US$103,264 		484 213.36 US$103,264
2023-05-22 2023-05-22 PrS Proposed sale
CIARAN MURRAY

Officer

Officer
725
213.33
US$154,663 		725 213.33 US$154,663
2023-05-22 2023-05-22 PrS Proposed sale
EUGENE PACELLI MCCAGUE

Officer

Officer
484
213.36
US$103,265 		484 213.36 US$103,265
2023-05-22 2023-05-22 PrS Proposed sale
1.6
LINDA SUE GRAIS

Officer

Officer
484
213.38
US$103,276 		484 213.38 US$103,276
2023-05-22 2023-05-22 PrS Proposed sale
JOAN GARAHY

Officer

Officer
484
213.38
US$103,276 		484 213.38 US$103,276
2023-05-22 2023-05-22 PrS Proposed sale
JOHN CLIMAX

Officer

Officer
447
213.41
US$95,395 		447 213.41 US$95,395
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