NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

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

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

Q4 2025

Shares 86 Value ($000) $3 Avg Close $29.70 Range $25.36 - $34.47

Q3 2025

Shares 170 Value ($000) $5 Avg Close $25.41 Range $22.48 - $28.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	86	$3	$29.70	$25.36 - $34.47
Q3 2025	170	$5	$25.41	$22.48 - $28.73