ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 21,707 Value ($000) $3,955 Avg Close $178.08 Range $154.12 - $198.30

Q3 2025

Shares 22,641 Value ($000) $3,962 Avg Close $167.36 Range $139.15 - $211.00

Q2 2025

Shares 31,723 Value ($000) $4,614 Avg Close $141.84 Range $125.10 - $175.88

Q1 2025

Shares 446,020 Value ($000) $78,049 Avg Close $193.87 Range $168.00 - $228.29

Q4 2024

Shares 429,099 Value ($000) $89,986 Avg Close $233.52 Range $183.38 - $303.69

Q3 2024

Shares 484,459 Value ($000) $139,190 Avg Close $315.33 Range $269.08 - $347.72

Q2 2024

Shares 694,183 Value ($000) $217,606 Avg Close $313.39 Range $287.02 - $338.98

Q1 2024

Shares 630,265 Value ($000) $211,738 Avg Close $294.81 Range $244.59 - $344.77

Q4 2023

Shares 623,158 Value ($000) $176,397 Avg Close $258.75 Range $221.20 - $288.50

Q3 2023

Shares 619,988 Value ($000) $152,672 Avg Close $252.02 Range $233.81 - $268.07

Q2 2023

Shares 536,584 Value ($000) $134,253 Avg Close $212.31 Range $181.92 - $252.15

Q1 2023

Shares 408,343 Value ($000) $87,218 Avg Close $222.55 Range $190.73 - $247.47

Q4 2022

Shares 422,847 Value ($000) $82,138 Avg Close $198.26 Range $171.43 - $229.84

Q3 2022

Shares 450,608 Value ($000) $82,812 Avg Close $217.64 Range $179.95 - $249.62

Q2 2022

Shares 462,912 Value ($000) $100,312 Avg Close $224.24 Range $196.34 - $263.62

Q1 2022

Shares 512,868 Value ($000) $124,740 Avg Close $250.60 Range $208.13 - $312.28

Q4 2021

Shares 486,356 Value ($000) $150,624 Avg Close $279.80 Range $254.34 - $313.00

Q3 2021

Shares 479,743 Value ($000) $125,701 Avg Close $243.05 Range $205.10 - $301.72

Q2 2021

Shares 319,970 Value ($000) $66,141 Avg Close $215.79 Range $193.25 - $234.22

Q1 2021

Shares 314,569 Value ($000) $61,772 Avg Close $197.42 Range $168.76 - $223.62

Q4 2020

Shares 289,929 Value ($000) $56,530 Avg Close $195.53 Range $177.52 - $215.29

Q3 2020

Shares 257,815 Value ($000) $49,266 Avg Close $183.83 Range $166.66 - $199.83

Q2 2020

Shares 248,058 Value ($000) $41,788 Avg Close $157.56 Range $127.00 - $173.77

Q1 2020

Shares 231,573 Value ($000) $31,494 Avg Close $160.09 Range $104.28 - $178.99

Q4 2019

Shares 214,238 Value ($000) $36,899 Avg Close $154.22 Range $138.50 - $172.45

Q3 2019

Shares 206,216 Value ($000) $30,384 Avg Close $153.57 Range $145.33 - $165.14

Q2 2019

Shares 200,967 Value ($000) $30,943 Avg Close $140.24 Range $128.52 - $154.40

Q1 2019

Shares 177,667 Value ($000) $24,266 Avg Close $136.30 Range $118.10 - $147.31

Q4 2018

Shares 253,217 Value ($000) $32,717 Avg Close $138.12 Range $119.08 - $155.33

Q3 2018

Shares 232,085 Value ($000) $35,683 Avg Close $143.37 Range $130.22 - $154.10

Q2 2018

Shares 304,194 Value ($000) $40,315 Avg Close $124.66 Range $110.21 - $138.17

Q1 2018

Shares 292,907 Value ($000) $34,604 Avg Close $114.70 Range $101.22 - $124.65

Q4 2017

Shares 275,257 Value ($000) $30,870 Avg Close $115.23 Range $110.54 - $124.48

Q3 2017

Shares 266,209 Value ($000) $30,315 Avg Close $106.27 Range $96.03 - $117.53

Q2 2017

Shares 249,247 Value ($000) $24,373 Avg Close $88.44 Range $76.46 - $100.87

Q1 2017

Shares 236,148 Value ($000) $18,826 Avg Close $81.89 Range $74.30 - $88.90

Q4 2016

Shares 232,666 Value ($000) $17,497 Avg Close $77.66 Range $73.76 - $85.74

Q3 2016

Shares 510,264 Value ($000) $39,480 Avg Close $75.14 Range $69.05 - $79.61

Q2 2016

Shares 597,809 Value ($000) $41,853 Avg Close $68.64 Range $62.31 - $77.08

Q1 2016

Shares 587,542 Value ($000) $42,529 Avg Close $70.08 Range $64.08 - $77.79

Q4 2015

Shares 567,524 Value ($000) $44,096 Avg Close $71.41 Range $63.20 - $78.88

Q3 2015

Shares 369,922 Value ($000) $26,254 Avg Close $75.27 Range $64.27 - $84.14

Q2 2015

Shares 155,953 Value ($000) $10,496 Avg Close $67.47 Range $62.36 - $71.80

Q1 2015

Shares 82,319 Value ($000) $5,805 Avg Close $61.98 Range $50.91 - $72.40

Q4 2014

Shares 106,065 Value ($000) $5,409 Avg Close $53.92 Range $49.75 - $59.81

Q3 2014

Shares 92,874 Value ($000) $5,315 Avg Close $51.48 Range $45.50 - $57.98

Q2 2014

Shares 84,694 Value ($000) $3,989 Avg Close $43.18 Range $35.33 - $49.39

Q1 2014

Shares 78,488 Value ($000) $3,732 Avg Close $44.59 Range $38.91 - $50.00

Q4 2013

Shares 38,203 Value ($000) $1,544 Avg Close $39.76 Range $36.42 - $44.23

Q3 2013

Shares 39,301 Value ($000) $1,608 Avg Close $38.50 Range $35.50 - $41.29

Q2 2013

Shares 44,220 Value ($000) $1,567 Avg Close $32.90 Range $29.07 - $36.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21,707	$3,955	$178.08	$154.12 - $198.30
Q3 2025	22,641	$3,962	$167.36	$139.15 - $211.00
Q2 2025	31,723	$4,614	$141.84	$125.10 - $175.88
Q1 2025	446,020	$78,049	$193.87	$168.00 - $228.29
Q4 2024	429,099	$89,986	$233.52	$183.38 - $303.69
Q3 2024	484,459	$139,190	$315.33	$269.08 - $347.72
Q2 2024	694,183	$217,606	$313.39	$287.02 - $338.98
Q1 2024	630,265	$211,738	$294.81	$244.59 - $344.77
Q4 2023	623,158	$176,397	$258.75	$221.20 - $288.50
Q3 2023	619,988	$152,672	$252.02	$233.81 - $268.07
Q2 2023	536,584	$134,253	$212.31	$181.92 - $252.15
Q1 2023	408,343	$87,218	$222.55	$190.73 - $247.47
Q4 2022	422,847	$82,138	$198.26	$171.43 - $229.84
Q3 2022	450,608	$82,812	$217.64	$179.95 - $249.62
Q2 2022	462,912	$100,312	$224.24	$196.34 - $263.62
Q1 2022	512,868	$124,740	$250.60	$208.13 - $312.28
Q4 2021	486,356	$150,624	$279.80	$254.34 - $313.00
Q3 2021	479,743	$125,701	$243.05	$205.10 - $301.72
Q2 2021	319,970	$66,141	$215.79	$193.25 - $234.22
Q1 2021	314,569	$61,772	$197.42	$168.76 - $223.62
Q4 2020	289,929	$56,530	$195.53	$177.52 - $215.29
Q3 2020	257,815	$49,266	$183.83	$166.66 - $199.83
Q2 2020	248,058	$41,788	$157.56	$127.00 - $173.77
Q1 2020	231,573	$31,494	$160.09	$104.28 - $178.99
Q4 2019	214,238	$36,899	$154.22	$138.50 - $172.45
Q3 2019	206,216	$30,384	$153.57	$145.33 - $165.14
Q2 2019	200,967	$30,943	$140.24	$128.52 - $154.40
Q1 2019	177,667	$24,266	$136.30	$118.10 - $147.31
Q4 2018	253,217	$32,717	$138.12	$119.08 - $155.33
Q3 2018	232,085	$35,683	$143.37	$130.22 - $154.10
Q2 2018	304,194	$40,315	$124.66	$110.21 - $138.17
Q1 2018	292,907	$34,604	$114.70	$101.22 - $124.65
Q4 2017	275,257	$30,870	$115.23	$110.54 - $124.48
Q3 2017	266,209	$30,315	$106.27	$96.03 - $117.53
Q2 2017	249,247	$24,373	$88.44	$76.46 - $100.87
Q1 2017	236,148	$18,826	$81.89	$74.30 - $88.90
Q4 2016	232,666	$17,497	$77.66	$73.76 - $85.74
Q3 2016	510,264	$39,480	$75.14	$69.05 - $79.61
Q2 2016	597,809	$41,853	$68.64	$62.31 - $77.08
Q1 2016	587,542	$42,529	$70.08	$64.08 - $77.79
Q4 2015	567,524	$44,096	$71.41	$63.20 - $78.88
Q3 2015	369,922	$26,254	$75.27	$64.27 - $84.14
Q2 2015	155,953	$10,496	$67.47	$62.36 - $71.80
Q1 2015	82,319	$5,805	$61.98	$50.91 - $72.40
Q4 2014	106,065	$5,409	$53.92	$49.75 - $59.81
Q3 2014	92,874	$5,315	$51.48	$45.50 - $57.98
Q2 2014	84,694	$3,989	$43.18	$35.33 - $49.39
Q1 2014	78,488	$3,732	$44.59	$38.91 - $50.00
Q4 2013	38,203	$1,544	$39.76	$36.42 - $44.23
Q3 2013	39,301	$1,608	$38.50	$35.50 - $41.29
Q2 2013	44,220	$1,567	$32.90	$29.07 - $36.71