IES HLDGS INC

Ticker: IESC CUSIP: 44951W106 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q4 2025

Shares 32 Value ($000) $12 Avg Close $401.94 Range $340.13 - $482.35

Q3 2025

Shares 51 Value ($000) $20 Avg Close $344.15 Range $281.35 - $404.27

Q2 2025

Shares 52 Value ($000) $15 Avg Close $235.67 Range $146.51 - $298.31

Q1 2025

Shares 2 Value ($000) $0 Avg Close $208.57 Range $157.64 - $318.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32	$12	$401.94	$340.13 - $482.35
Q3 2025	51	$20	$344.15	$281.35 - $404.27
Q2 2025	52	$15	$235.67	$146.51 - $298.31
Q1 2025	2	$0	$208.57	$157.64 - $318.66