Boston Trust Walden Corp

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 Sep 2019		-0.05%	$0	0	-217,569	-100%	$36.39	Q3 2019
30 Jun 2019	0.05%	-0%	$3,590,000	217,569	-4,206	-1.9%	$16.50	Q2 2019
31 Mar 2019	0.05%	+0%	$3,839,000	221,775	+6,927	+3.2%	$17.31	Q1 2019
31 Dec 2018	0.06%	-0%	$3,532,000	214,848	-14,581	-6.4%	$16.44	Q4 2018
30 Sep 2018	0.07%	-0%	$4,841,000	229,429	-10,251	-4.3%	$21.10	Q3 2018
30 Jun 2018	0.08%	-0%	$5,656,000	239,680	-5,698	-2.3%	$23.60	Q2 2018
31 Mar 2018	0.09%	-0.01%	$5,852,000	245,378	-17,850	-6.8%	$23.85	Q1 2018
31 Dec 2017	0.1%	-0%	$6,897,000	263,228	-6,615	-2.5%	$26.20	Q4 2017
30 Sep 2017	0.12%	-0%	$7,664,000	269,843	-3,515	-1.3%	$28.40	Q3 2017
30 Jun 2017	0.11%	-0.03%	$6,793,000	273,358	-85,004	-24%	$24.85	Q2 2017
31 Mar 2017	0.15%	-0.01%	$9,336,000	358,362	-27,588	-7.1%	$26.05	Q1 2017
31 Dec 2016	0.2%	-0.01%	$12,408,000	385,950	-16,374	-4.1%	$32.15	Q4 2016
30 Sep 2016	0.16%	-0%	$9,893,000	402,324	-1,051	-0.26%	$24.59	Q3 2016
30 Jun 2016	0.16%	-0%	$9,237,000	403,375	-1,832	-0.45%	$22.90	Q2 2016
31 Mar 2016	0.15%	-0%	$8,765,000	405,207	-3,356	-0.82%	$21.63	Q1 2016
31 Dec 2015	0.17%	-0%	$9,111,000	408,563	-5,917	-1.4%	$22.30	Q4 2015
30 Sep 2015	0.13%	-0%	$8,000,000	414,480	-7,687	-1.8%	$19.30	Q3 2015
30 Jun 2015	0.15%	-0%	$9,634,000	422,167	-10,406	-2.4%	$22.82	Q2 2015
31 Mar 2015	0.12%	-0%	$8,314,000	432,573	-7,889	-1.8%	$19.22	Q1 2015
31 Dec 2014	0.15%	+0.01%	$10,148,000	440,462	+20,836	+5%	$23.04	Q4 2014
30 Sep 2014	0.16%	-0.01%	$10,101,000	419,626	-14,069	-3.2%	$24.07	Q3 2014
30 Jun 2014	0.21%	-0.01%	$14,338,000	433,695	-20,621	-4.5%	$33.06	Q2 2014
31 Mar 2014	0.2%	-0%	$13,693,000	454,316	-9,175	-2%	$30.14	Q1 2014
31 Dec 2013	0.19%	0%	$12,779,000	463,491	0		$27.57	Q4 2013

* 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.