TIAA CREF INVESTMENT MANAGEMENT LLC

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
31 Mar 2019	0%	-0%	$749,000	43,263	-65	-0.15%	$17.31	Q1 2019
31 Dec 2018	0%	-0%	$712,000	43,328	-1,919	-4.2%	$16.43	Q4 2018
30 Sep 2018	0%	+0%	$955,000	45,247	+1,022	+2.3%	$21.11	Q3 2018
30 Jun 2018	0%	-0%	$1,044,000	44,225	-1,802	-3.9%	$23.61	Q2 2018
31 Mar 2018	0%	-0%	$1,098,000	46,027	-1,428	-3%	$23.86	Q1 2018
31 Dec 2017	0%	-0%	$1,243,000	47,455	-8,995	-16%	$26.19	Q4 2017
30 Sep 2017	0%	+0%	$1,603,000	56,450	+6,595	+13%	$28.40	Q3 2017
30 Jun 2017	0%	-0%	$1,239,000	49,855	-8,187	-14%	$24.85	Q2 2017
31 Mar 2017	0%	-0%	$1,512,000	58,042	-924	-1.6%	$26.05	Q1 2017
31 Dec 2016	0%	-0%	$1,896,000	58,966	-4,991	-7.8%	$32.15	Q4 2016
30 Sep 2016	0%	-0%	$1,573,000	63,957	-174	-0.27%	$24.59	Q3 2016
30 Jun 2016	0%	+0%	$1,469,000	64,131	+10,878	+20%	$22.91	Q2 2016
31 Mar 2016	0%	0%	$1,152,000	53,253	0		$21.63	Q1 2016
31 Dec 2015	0%	0%	$1,188,000	53,253	0		$22.31	Q4 2015
30 Sep 2015	0%	+0%	$1,028,000	53,253	+3,715	+7.5%	$19.30	Q3 2015
30 Jun 2015	0%	-0%	$1,130,000	49,538	-8,256	-14%	$22.81	Q2 2015
31 Mar 2015	0%	-0%	$1,111,000	57,794	-1,958	-3.3%	$19.22	Q1 2015
31 Dec 2014	0%	-0%	$1,377,000	59,752	-3,735	-5.9%	$23.05	Q4 2014
30 Sep 2014	0%	-0%	$1,528,000	63,487	-624	-0.97%	$24.07	Q3 2014
30 Jun 2014	0%	-0%	$2,120,000	64,111	-2,575	-3.9%	$33.07	Q2 2014
31 Mar 2014	0%	-0%	$2,010,000	66,686	-1,610	-2.4%	$30.14	Q1 2014
31 Dec 2013	0%	0%	$1,883,000	68,296	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.