NATURAL GAS SERVICES GROUP

Ticker: NGS CUSIP: 63886Q109 Class: Common Stock

Rockefeller Capital Management L.P.'s Holding History (CIK: 0001739439)

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

Q2 2021

Shares 850 Value ($000) $8 Avg Close $9.89 Range $8.77 - $11.52

Q3 2019

Shares 131 Value ($000) $2 Avg Close $13.56 Range $10.11 - $16.51

Q2 2019

Shares 131 Value ($000) $2 Avg Close $16.22 Range $14.71 - $18.54

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	850	$8	$9.89	$8.77 - $11.52
Q3 2019	131	$2	$13.56	$10.11 - $16.51
Q2 2019	131	$2	$16.22	$14.71 - $18.54