Home > Insider Trading > Filing (0001209191-10-061124)

Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1084991	Natural Gas Services Group Inc	NGS	Oil & Gas Field Services, Nec (1389)	752811855

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1196479	R Earl Wait	5102 Teakwood Trace Midland TX 79707	Vp/Accounting; Treasurer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2010-12-13	100	$17.51	17,137	No	4	S	Direct
Common Stock	Disposition	2010-12-13	1,200	$17.52	15,937	No	4	S	Direct
Common Stock	Disposition	2010-12-13	100	$17.53	15,837	No	4	S	Direct
Common Stock	Disposition	2010-12-13	362	$17.54	15,475	No	4	S	Direct
Common Stock	Disposition	2010-12-13	300	$17.55	15,175	No	4	S	Direct
Common Stock	Disposition	2010-12-13	1,500	$17.56	13,675	No	4	S	Direct
Common Stock	Disposition	2010-12-13	1,040	$17.58	12,635	No	4	S	Direct
Common Stock	Disposition	2010-12-13	100	$17.60	12,535	No	4	S	Direct
Common Stock	Disposition	2010-12-13	100	$17.61	12,435	No	4	S	Direct
Common Stock	Disposition	2010-12-13	300	$17.62	12,135	No	4	S	Direct
Common Stock	Disposition	2010-12-13	700	$17.63	11,435	No	4	S	Direct
Common Stock	Disposition	2010-12-13	538	$17.64	10,897	No	4	S	Direct
Common Stock	Disposition	2010-12-13	900	$17.65	9,997	No	4	S	Direct
Common Stock	Disposition	2010-12-13	2,600	$17.68	7,397	No	4	S	Direct
Common Stock	Disposition	2010-12-13	900	$17.75	6,497	No	4	S	Direct
Common Stock	Disposition	2010-12-13	100	$17.81	6,397	No	4	S	Direct
Common Stock	Disposition	2010-12-13	100	$17.83	6,297	No	4	S	Direct
Common Stock	Disposition	2010-12-13	200	$17.84	6,097	No	4	S	Direct
Common Stock	Disposition	2010-12-13	1,400	$17.85	4,697	No	4	S	Direct
Common Stock	Disposition	2010-12-13	900	$17.86	3,797	No	4	S	Direct
Common Stock	Disposition	2010-12-13	200	$17.95	3,597	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Holdings

Sec. Name	Sec. Type	Price	Date	Expiration Date	Amount	Remaning Holdings	Nature of Ownership
Common Stock	Employee Stock Option (right to buy)	$3.25	2003-04-23	2012-04-23	9,000	9,000	Direct
Common Stock	Employee Stock Option (right to buy)	$14.22	2007-11-21	2016-11-21	5,000	5,000	Direct
Common Stock	Employee Stock Option (right to buy)	$7.84	2010-03-17	2019-03-16	11,384	11,384	Direct
Common Stock	Employee Stock Option (right to buy)	$17.74	2010-12-09	2019-12-08	10,000	10,000	Direct

Expiration Date	Amount	Remaning Holdings	Nature of Ownership
2012-04-23	9,000	9,000	Direct
2016-11-21	5,000	5,000	Direct
2019-03-16	11,384	11,384	Direct
2019-12-08	10,000	10,000	Direct

Footnotes

Includes 1,227 shares of common stock received pursuant to an award of restricted stock on January 4, 2010, pursuant to the Company's 2009 Restricted Stock/Unit Plan and is subject to forfeiture. The award vests one year from the grant date subject to the participant's continued employment with the Company and subject to accelerated vesting upon the death, disability or retirement of the participant, or upon a change in control of the Company.
Granted pursuant to the Company's 1998 Stock Option Plan. The option vests and becomes exercisable in three equal annual installments beginning on the first anniversary of the grant date. Vesting accelerates under certain circumstances.
Granted pursuant to the Company's 1998 Stock Option Plan. The option vests one year from the date of grant, although vesting accelerates if employment is terminated for any reason.