ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 522,970 Value ($000) $95,299 Avg Close $178.08 Range $154.12 - $198.30

Q3 2025

Shares 421,288 Value ($000) $73,681 Avg Close $167.36 Range $139.15 - $211.00

Q2 2025

Shares 456,137 Value ($000) $66,342 Avg Close $141.84 Range $125.10 - $175.88

Q1 2025

Shares 457,860 Value ($000) $80,137 Avg Close $193.87 Range $168.00 - $228.29

Q4 2024

Shares 433,950 Value ($000) $91,003 Avg Close $233.52 Range $183.38 - $303.69

Q3 2024

Shares 233,655 Value ($000) $67,125 Avg Close $315.33 Range $269.08 - $347.72

Q2 2024

Shares 16,257 Value ($000) $5,096 Avg Close $313.39 Range $287.02 - $338.98

Q1 2024

Shares 15,160 Value ($000) $5,093 Avg Close $294.81 Range $244.59 - $344.77

Q4 2023

Shares 15,160 Value ($000) $4,295 Avg Close $258.75 Range $221.20 - $288.50

Q3 2023

Shares 15,278 Value ($000) $3,763 Avg Close $252.02 Range $233.81 - $268.07

Q2 2023

Shares 16,377 Value ($000) $4,086 Avg Close $212.31 Range $181.92 - $252.15

Q1 2023

Shares 19,510 Value ($000) $4,163 Avg Close $222.55 Range $190.73 - $247.47

Q4 2022

Shares 19,510 Value ($000) $4 Avg Close $198.26 Range $171.43 - $229.84

Q3 2022

Shares 19,543 Value ($000) $3,592 Avg Close $217.64 Range $179.95 - $249.62

Q2 2022

Shares 19,501 Value ($000) $4,228 Avg Close $224.24 Range $196.34 - $263.62

Q1 2022

Shares 49,009 Value ($000) $11,924 Avg Close $250.60 Range $208.13 - $312.28

Q4 2021

Shares 50,042 Value ($000) $15,497 Avg Close $279.80 Range $254.34 - $313.00

Q3 2021

Shares 49,845 Value ($000) $13,069 Avg Close $243.05 Range $205.10 - $301.72

Q4 2020

Shares 4,800 Value ($000) $936 Avg Close $195.53 Range $177.52 - $215.29

Q3 2020

Shares 4,931 Value ($000) $942 Avg Close $183.83 Range $166.66 - $199.83

Q2 2020

Shares 3,433 Value ($000) $578 Avg Close $157.56 Range $127.00 - $173.77

Q1 2020

Shares 3,056 Value ($000) $416 Avg Close $160.09 Range $104.28 - $178.99

Q4 2019

Shares 1,920 Value ($000) $331 Avg Close $154.22 Range $138.50 - $172.45

Q3 2019

Shares 2,020 Value ($000) $298 Avg Close $153.57 Range $145.33 - $165.14

Q2 2019

Shares 3,084 Value ($000) $475 Avg Close $140.24 Range $128.52 - $154.40

Q1 2019

Shares 3,115 Value ($000) $425 Avg Close $136.30 Range $118.10 - $147.31

Q4 2018

Shares 2,078 Value ($000) $268 Avg Close $138.12 Range $119.08 - $155.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	522,970	$95,299	$178.08	$154.12 - $198.30
Q3 2025	421,288	$73,681	$167.36	$139.15 - $211.00
Q2 2025	456,137	$66,342	$141.84	$125.10 - $175.88
Q1 2025	457,860	$80,137	$193.87	$168.00 - $228.29
Q4 2024	433,950	$91,003	$233.52	$183.38 - $303.69
Q3 2024	233,655	$67,125	$315.33	$269.08 - $347.72
Q2 2024	16,257	$5,096	$313.39	$287.02 - $338.98
Q1 2024	15,160	$5,093	$294.81	$244.59 - $344.77
Q4 2023	15,160	$4,295	$258.75	$221.20 - $288.50
Q3 2023	15,278	$3,763	$252.02	$233.81 - $268.07
Q2 2023	16,377	$4,086	$212.31	$181.92 - $252.15
Q1 2023	19,510	$4,163	$222.55	$190.73 - $247.47
Q4 2022	19,510	$4	$198.26	$171.43 - $229.84
Q3 2022	19,543	$3,592	$217.64	$179.95 - $249.62
Q2 2022	19,501	$4,228	$224.24	$196.34 - $263.62
Q1 2022	49,009	$11,924	$250.60	$208.13 - $312.28
Q4 2021	50,042	$15,497	$279.80	$254.34 - $313.00
Q3 2021	49,845	$13,069	$243.05	$205.10 - $301.72
Q4 2020	4,800	$936	$195.53	$177.52 - $215.29
Q3 2020	4,931	$942	$183.83	$166.66 - $199.83
Q2 2020	3,433	$578	$157.56	$127.00 - $173.77
Q1 2020	3,056	$416	$160.09	$104.28 - $178.99
Q4 2019	1,920	$331	$154.22	$138.50 - $172.45
Q3 2019	2,020	$298	$153.57	$145.33 - $165.14
Q2 2019	3,084	$475	$140.24	$128.52 - $154.40
Q1 2019	3,115	$425	$136.30	$118.10 - $147.31
Q4 2018	2,078	$268	$138.12	$119.08 - $155.33