ICON PLC

Ticker: ICLR CUSIP: G4705A100 Class: SHS

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q4 2025

Shares 72,744 Value ($000) $13,255 Avg Close $178.08 Range $154.12 - $198.30

Q3 2025

Shares 69,289 Value ($000) $12,126 Avg Close $167.36 Range $139.15 - $211.00

Q2 2025

Shares 71,360 Value ($000) $10,379 Avg Close $141.84 Range $125.10 - $175.88

Q1 2025

Shares 36,107 Value ($000) $6,318 Avg Close $193.87 Range $168.00 - $228.29

Q4 2024

Shares 19,177 Value ($000) $4,022 Avg Close $233.52 Range $183.38 - $303.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	72,744	$13,255	$178.08	$154.12 - $198.30
Q3 2025	69,289	$12,126	$167.36	$139.15 - $211.00
Q2 2025	71,360	$10,379	$141.84	$125.10 - $175.88
Q1 2025	36,107	$6,318	$193.87	$168.00 - $228.29
Q4 2024	19,177	$4,022	$233.52	$183.38 - $303.69