ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 3,577 Value ($000) $652 Avg Close $178.08 Range $154.12 - $198.30
Q1 2025
Shares 3,202 Value ($000) $560 Avg Close $193.87 Range $168.00 - $228.29
Q4 2024
Shares 27 Value ($000) $6 Avg Close $233.52 Range $183.38 - $303.69
Q3 2024
Shares 213 Value ($000) $61 Avg Close $315.33 Range $269.08 - $347.72
Q2 2024
Shares 200 Value ($000) $63 Avg Close $313.39 Range $287.02 - $338.98
Q4 2021
Shares 1,688 Value ($000) $523 Avg Close $279.80 Range $254.34 - $313.00
Q2 2021
Shares 13,800 Value ($000) $2,853 Avg Close $215.79 Range $193.25 - $234.22
Q1 2021
Shares 3,800 Value ($000) $746 Avg Close $197.42 Range $168.76 - $223.62
Q1 2015
Shares 263 Value ($000) $19 Avg Close $61.98 Range $50.91 - $72.40
Q2 2014
Shares 2,818 Value ($000) $133 Avg Close $43.18 Range $35.33 - $49.39
Q1 2014
Shares 4,529 Value ($000) $215 Avg Close $44.59 Range $38.91 - $50.00
Q4 2013
Shares 9,170 Value ($000) $371 Avg Close $39.76 Range $36.42 - $44.23
Q3 2013
Shares 458 Value ($000) $19 Avg Close $38.50 Range $35.50 - $41.29
Q2 2013
Shares 258 Value ($000) $9 Avg Close $32.90 Range $29.07 - $36.71