MARSHALL WACE, LLP

Holdings History for NATURAL GAS SERVICES GROUP INC - Common Stock, par value $0.01 per share (NGS)

Symbol: NGS on NYSE
Investment type: Equity / Common Stock, par value $0.01 per share

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Jun 2025		-0%	$0	0	-26,693	-100%	$36.39	Q2 2025
31 Mar 2025	0%	+0%	$586,445	26,693	+143		$21.97	Q1 2025
31 Dec 2024	0%	-0%	$711,540	26,550	-51,667	-66%	$26.80	Q4 2024
30 Sep 2024	0%	+0%	$1,494,728	78,217	+997	+1.3%	$19.11	Q3 2024
30 Jun 2024	0%	+0%	$1,553,666	77,220	+38,751	+101%	$20.12	Q2 2024
31 Mar 2024	0%	+0%	$747,452	38,469	+17,593	+84%	$19.43	Q1 2024
31 Dec 2023	0%	+0%	$335,686	20,876	+1,050	+5.3%	$16.08	Q4 2023
30 Sep 2023	0%	-0%	$288,667	19,826	-10,976	-36%	$14.56	Q3 2023
30 Jun 2023	0%	+0%	$304,939	30,802	+30,802	NEW	$9.90	Q2 2023
30 Jun 2021		-0%	$0	0	-13,576	-100%	$36.39	Q2 2021
31 Mar 2021	0%	+0%	$128,000	13,576	+13,576	NEW	$9.43	Q1 2021
31 Dec 2019		-0%	$0	0	-4,837	-100%	$36.39	Q4 2019
30 Sep 2019	0%	+0%	$62,000	4,837	+4,837	NEW	$12.82	Q3 2019
30 Jun 2019		-0%	$0	0	-13,231	-100%	$36.39	Q2 2019
31 Mar 2019	0%	+0%	$229,000	13,231	+13,231	NEW	$17.31	Q1 2019

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.