ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2025

Shares 91,496 Value ($000) $16,672 Avg Close $178.08 Range $154.12 - $198.30

Q3 2025

Shares 88,560 Value ($000) $15,498 Avg Close $167.36 Range $139.15 - $211.00

Q2 2025

Shares 225,018 Value ($000) $32,729 Avg Close $141.84 Range $125.10 - $175.88

Q1 2025

Shares 214,803 Value ($000) $37,588 Avg Close $193.87 Range $168.00 - $228.29

Q4 2024

Shares 210,538 Value ($000) $44,152 Avg Close $233.52 Range $183.38 - $303.69

Q3 2024

Shares 205,913 Value ($000) $59,161 Avg Close $315.33 Range $269.08 - $347.72

Q2 2024

Shares 230,480 Value ($000) $72,249 Avg Close $313.39 Range $287.02 - $338.98

Q1 2024

Shares 296,745 Value ($000) $99,691 Avg Close $294.81 Range $244.59 - $344.77

Q4 2023

Shares 290,026 Value ($000) $82,098 Avg Close $258.75 Range $221.20 - $288.50

Q3 2023

Shares 277,251 Value ($000) $68,273 Avg Close $252.02 Range $233.81 - $268.07

Q2 2023

Shares 272,580 Value ($000) $68,200 Avg Close $212.31 Range $181.92 - $252.15

Q1 2023

Shares 173,024 Value ($000) $36,956 Avg Close $222.55 Range $190.73 - $247.47

Q4 2022

Shares 169,676 Value ($000) $32,960 Avg Close $198.26 Range $171.43 - $229.84

Q3 2022

Shares 164,671 Value ($000) $30,263 Avg Close $217.64 Range $179.95 - $249.62

Q2 2022

Shares 162,344 Value ($000) $35,180 Avg Close $224.24 Range $196.34 - $263.62

Q1 2022

Shares 154,363 Value ($000) $37,545 Avg Close $250.60 Range $208.13 - $312.28

Q4 2021

Shares 55,383 Value ($000) $17,152 Avg Close $279.80 Range $254.34 - $313.00

Q3 2021

Shares 51,267 Value ($000) $13,433 Avg Close $243.05 Range $205.10 - $301.72

Q2 2021

Shares 31,841 Value ($000) $6,582 Avg Close $215.79 Range $193.25 - $234.22

Q1 2021

Shares 29,908 Value ($000) $5,873 Avg Close $197.42 Range $168.76 - $223.62

Q4 2020

Shares 25,999 Value ($000) $5,069 Avg Close $195.53 Range $177.52 - $215.29

Q3 2020

Shares 23,986 Value ($000) $4,584 Avg Close $183.83 Range $166.66 - $199.83

Q2 2020

Shares 23,298 Value ($000) $3,925 Avg Close $157.56 Range $127.00 - $173.77

Q1 2020

Shares 21,711 Value ($000) $2,953 Avg Close $160.09 Range $104.28 - $178.99

Q4 2019

Shares 20,043 Value ($000) $3,452 Avg Close $154.22 Range $138.50 - $172.45

Q3 2019

Shares 18,809 Value ($000) $2,771 Avg Close $153.57 Range $145.33 - $165.14

Q2 2019

Shares 19,638 Value ($000) $3,024 Avg Close $140.24 Range $128.52 - $154.40

Q1 2019

Shares 19,145 Value ($000) $2,615 Avg Close $136.30 Range $118.10 - $147.31

Q4 2018

Shares 24,847 Value ($000) $3,210 Avg Close $138.12 Range $119.08 - $155.33

Q3 2018

Shares 23,029 Value ($000) $3,541 Avg Close $143.37 Range $130.22 - $154.10

Q2 2018

Shares 22,973 Value ($000) $3,045 Avg Close $124.66 Range $110.21 - $138.17

Q1 2018

Shares 15,558 Value ($000) $1,838 Avg Close $114.70 Range $101.22 - $124.65

Q4 2017

Shares 15,558 Value ($000) $1,745 Avg Close $115.23 Range $110.54 - $124.48

Q3 2017

Shares 14,558 Value ($000) $1,658 Avg Close $106.27 Range $96.03 - $117.53

Q2 2017

Shares 14,545 Value ($000) $1,422 Avg Close $88.44 Range $76.46 - $100.87

Q1 2017

Shares 12,145 Value ($000) $968 Avg Close $81.89 Range $74.30 - $88.90

Q4 2016

Shares 12,145 Value ($000) $913 Avg Close $77.66 Range $73.76 - $85.74

Q3 2016

Shares 11,200 Value ($000) $867 Avg Close $75.14 Range $69.05 - $79.61

Q2 2016

Shares 11,200 Value ($000) $784 Avg Close $68.64 Range $62.31 - $77.08

Q1 2016

Shares 11,200 Value ($000) $841 Avg Close $70.08 Range $64.08 - $77.79

Q4 2015

Shares 10,000 Value ($000) $777 Avg Close $71.41 Range $63.20 - $78.88

Q3 2015

Shares 10,000 Value ($000) $710 Avg Close $75.27 Range $64.27 - $84.14

Q2 2015

Shares 9,400 Value ($000) $633 Avg Close $67.47 Range $62.36 - $71.80

Q1 2015

Shares 8,600 Value ($000) $607 Avg Close $61.98 Range $50.91 - $72.40

Q4 2014

Shares 7,800 Value ($000) $398 Avg Close $53.92 Range $49.75 - $59.81

Q3 2014

Shares 7,800 Value ($000) $446 Avg Close $51.48 Range $45.50 - $57.98

Q2 2014

Shares 7,800 Value ($000) $367 Avg Close $43.18 Range $35.33 - $49.39

Q1 2014

Shares 6,300 Value ($000) $300 Avg Close $44.59 Range $38.91 - $50.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	91,496	$16,672	$178.08	$154.12 - $198.30
Q3 2025	88,560	$15,498	$167.36	$139.15 - $211.00
Q2 2025	225,018	$32,729	$141.84	$125.10 - $175.88
Q1 2025	214,803	$37,588	$193.87	$168.00 - $228.29
Q4 2024	210,538	$44,152	$233.52	$183.38 - $303.69
Q3 2024	205,913	$59,161	$315.33	$269.08 - $347.72
Q2 2024	230,480	$72,249	$313.39	$287.02 - $338.98
Q1 2024	296,745	$99,691	$294.81	$244.59 - $344.77
Q4 2023	290,026	$82,098	$258.75	$221.20 - $288.50
Q3 2023	277,251	$68,273	$252.02	$233.81 - $268.07
Q2 2023	272,580	$68,200	$212.31	$181.92 - $252.15
Q1 2023	173,024	$36,956	$222.55	$190.73 - $247.47
Q4 2022	169,676	$32,960	$198.26	$171.43 - $229.84
Q3 2022	164,671	$30,263	$217.64	$179.95 - $249.62
Q2 2022	162,344	$35,180	$224.24	$196.34 - $263.62
Q1 2022	154,363	$37,545	$250.60	$208.13 - $312.28
Q4 2021	55,383	$17,152	$279.80	$254.34 - $313.00
Q3 2021	51,267	$13,433	$243.05	$205.10 - $301.72
Q2 2021	31,841	$6,582	$215.79	$193.25 - $234.22
Q1 2021	29,908	$5,873	$197.42	$168.76 - $223.62
Q4 2020	25,999	$5,069	$195.53	$177.52 - $215.29
Q3 2020	23,986	$4,584	$183.83	$166.66 - $199.83
Q2 2020	23,298	$3,925	$157.56	$127.00 - $173.77
Q1 2020	21,711	$2,953	$160.09	$104.28 - $178.99
Q4 2019	20,043	$3,452	$154.22	$138.50 - $172.45
Q3 2019	18,809	$2,771	$153.57	$145.33 - $165.14
Q2 2019	19,638	$3,024	$140.24	$128.52 - $154.40
Q1 2019	19,145	$2,615	$136.30	$118.10 - $147.31
Q4 2018	24,847	$3,210	$138.12	$119.08 - $155.33
Q3 2018	23,029	$3,541	$143.37	$130.22 - $154.10
Q2 2018	22,973	$3,045	$124.66	$110.21 - $138.17
Q1 2018	15,558	$1,838	$114.70	$101.22 - $124.65
Q4 2017	15,558	$1,745	$115.23	$110.54 - $124.48
Q3 2017	14,558	$1,658	$106.27	$96.03 - $117.53
Q2 2017	14,545	$1,422	$88.44	$76.46 - $100.87
Q1 2017	12,145	$968	$81.89	$74.30 - $88.90
Q4 2016	12,145	$913	$77.66	$73.76 - $85.74
Q3 2016	11,200	$867	$75.14	$69.05 - $79.61
Q2 2016	11,200	$784	$68.64	$62.31 - $77.08
Q1 2016	11,200	$841	$70.08	$64.08 - $77.79
Q4 2015	10,000	$777	$71.41	$63.20 - $78.88
Q3 2015	10,000	$710	$75.27	$64.27 - $84.14
Q2 2015	9,400	$633	$67.47	$62.36 - $71.80
Q1 2015	8,600	$607	$61.98	$50.91 - $72.40
Q4 2014	7,800	$398	$53.92	$49.75 - $59.81
Q3 2014	7,800	$446	$51.48	$45.50 - $57.98
Q2 2014	7,800	$367	$43.18	$35.33 - $49.39
Q1 2014	6,300	$300	$44.59	$38.91 - $50.00