INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

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

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

Q3 2025

Shares 128 Value ($000) $10 Avg Close $82.49 Range $73.21 - $89.37

Q2 2025

Shares 50 Value ($000) $4 Avg Close $86.03 Range $78.60 - $94.32

Q1 2025

Shares 79 Value ($000) $7 Avg Close $103.54 Range $91.98 - $114.58

Q4 2021

Shares 751 Value ($000) $63 Avg Close $82.93 Range $76.29 - $89.94

Q3 2021

Shares 751 Value ($000) $63 Avg Close $83.46 Range $75.85 - $90.38

Q2 2021

Shares 751 Value ($000) $68 Avg Close $92.53 Range $83.80 - $100.29

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	128	$10	$82.49	$73.21 - $89.37
Q2 2025	50	$4	$86.03	$78.60 - $94.32
Q1 2025	79	$7	$103.54	$91.98 - $114.58
Q4 2021	751	$63	$82.93	$76.29 - $89.94
Q3 2021	751	$63	$83.46	$75.85 - $90.38
Q2 2021	751	$68	$92.53	$83.80 - $100.29