INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

Western Standard LLC's Holding History (CIK: 0001517666)

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

Q4 2025

Shares 268,367 Value ($000) $20,541 Avg Close $75.03 Range $70.10 - $79.81

Q3 2025

Shares 27,000 Value ($000) $2,083 Avg Close $82.49 Range $73.21 - $89.37

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	268,367	$20,541	$75.03	$70.10 - $79.81
Q3 2025	27,000	$2,083	$82.49	$73.21 - $89.37