Form4insider filings, from the source

Company · CIK 0001084991 · SIC 1389 — Oil & Gas Field Services, NEC · NYSE

NATURAL GAS SERVICES GROUP INC · NGS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $7.2M · 47net −$7.2M
$10k$10k$100k$100k$1M$1MbuyssalesMar 2015Nov 2015Jul 2016Feb 2017Oct 2017Jun 2018Feb 2019

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 2, 2026 AForm 4 →Sep 3, 3:15 pm EDTDonald J TringaliDirector59$35.22$2,07813,812—
Jun 8, 2026 AForm 4 →Jun 9, 10:48 am EDTStephen Charles TaylorDirector334$42.42$14,16895,137—
Jun 8, 2026 AForm 4 →Jun 9, 10:41 am EDTDonald J TringaliDirector49$42.42$2,07917,763— amended
Jun 5, 2026 AJForm 4 →Jun 8, 3:39 pm EDTGeorganne HodgesDirector6,684$39.87$88,83011,066—
Jun 5, 2026 AJForm 4 →Jun 8, 3:26 pm EDTStephen Charles TaylorDirector6,684$39.87$88,830197,818—
Jun 5, 2026 AForm 4 →Jun 8, 3:00 pm EDTDonald J TringaliDirector4,456——17,714—
Jun 5, 2026 AForm 4 →Jun 8, 2:44 pm EDTJean K HolleyDirector4,456——18,846—
Jun 5, 2026 AForm 4 →Jun 8, 2:19 pm EDTNigel JenveyDirector4,456——26,239—
Jun 5, 2026 AForm 4 →Jun 8, 1:20 pm EDTJohn A. Gallegos Jr.Director4,456——5,345—
Apr 1, 2026 AForm 4 →Jun 8, 1:00 pm EDTJohn A. Gallegos Jr.Director889——889— late
Feb 14, 2019 FMForm 4 →Feb 28, 3:27 pm ESTStephen Charles TaylorChief Executive Officer, Director22,417$18.04$23,037319,385— plan? late
Feb 5, 2019 SForm 4 →Feb 6, 3:08 pm ESTStephen Charles TaylorChief Executive Officer, Director2,720$17.00$46,240320,662−0.84% plan?
Feb 5, 2019 MForm 4 →Feb 6, 3:08 pm ESTStephen Charles TaylorChief Executive Officer, Director2,720$7.84$21,325323,382— plan?
Jan 31, 2019 SForm 4 →Feb 4, 6:03 pm ESTStephen Charles TaylorChief Executive Officer, Director12,789$17.06$218,179320,662−3.84% plan?
Jan 31, 2019 MForm 4 →Feb 4, 6:03 pm ESTStephen Charles TaylorChief Executive Officer, Director12,789$7.84$100,266333,433— plan?
Jan 28, 2019 SForm 4 →Jan 30, 5:42 pm ESTStephen Charles TaylorChief Executive Officer, Director6,363$17.04$108,416320,662−1.95% plan?
Jan 28, 2019 MForm 4 →Jan 30, 5:42 pm ESTStephen Charles TaylorChief Executive Officer, Director6,363$7.84$49,886321,010— plan?
Jan 23, 2019 SForm 4 →Jan 25, 5:43 pm ESTStephen Charles TaylorChief Executive Officer, Director8,025$17.14$137,509320,662−2.44% plan?
Jan 23, 2019 MForm 4 →Jan 25, 5:43 pm ESTStephen Charles TaylorChief Executive Officer, Director8,025$9.43$75,671322,642— plan?
Jan 17, 2019 SForm 4 →Jan 22, 5:06 pm ESTStephen Charles TaylorChief Executive Officer, Director23,955$17.70$424,042320,662−6.95% plan?
Jan 17, 2019 MForm 4 →Jan 22, 5:06 pm ESTStephen Charles TaylorChief Executive Officer, Director23,955$9.95$238,352321,862— plan?
Jan 8, 2019 SForm 4 →Jan 9, 3:52 pm ESTJohn ChisholmDirector2,500$18.20$45,50010,964−18.6% plan?
Jan 8, 2019 MForm 4 →Jan 9, 3:52 pm ESTJohn ChisholmDirector2,500$8.00$20,00013,464— plan?
Dec 31, 2018 MForm 4 →Jan 2, 2019, 2:33 pm ESTWilliam F Hughes Jr.Director898——3,593— plan?
Sep 30, 2018 MForm 4 →Oct 2, 2:16 pm EDTWilliam F Hughes Jr.Director898——2,695— plan?
Sep 6, 2018 MForm 4 →Sep 6, 3:49 pm EDTStephen Charles TaylorCEO, Director4,000$17.51$70,040320,662— plan?
Aug 29, 2018 SForm 4 →Aug 31, 4:00 pm EDTStephen Charles TaylorCEO, Director13,776$22.01$303,210316,662−4.17% plan?
Aug 29, 2018 MForm 4 →Aug 31, 4:00 pm EDTStephen Charles TaylorCEO, Director13,776$17.51$241,218330,438— plan?
Aug 23, 2018 SForm 4 →Aug 27, 6:20 pm EDTStephen Charles TaylorCEO, Director3,320$22.41$74,402316,662−1.04% plan?
Aug 23, 2018 MForm 4 →Aug 27, 6:20 pm EDTStephen Charles TaylorCEO, Director3,320$17.51$58,133319,982— plan?
Aug 21, 2018 SForm 4 →Aug 23, 11:29 am EDTStephen Charles TaylorCEO, Director2,704$22.02$59,542316,662−0.85% plan?
Aug 21, 2018 FMForm 4 →Aug 23, 11:29 am EDTStephen Charles TaylorCEO, Director5,104$18.57$94,783319,366— plan?
Jun 30, 2018 MForm 4 →Jul 3, 12:54 pm EDTWilliam F Hughes Jr.Director899——1,797— plan?
Jun 1, 2018 GForm 4 →Jun 5, 3:00 pm EDTWilliam F Hughes Jr.Director4,300——106,200— plan?
Apr 6, 2018 FForm 4 →Apr 10, 12:07 pm EDTJames R HazlettVP -- Technical Services2,735$24.50$67,00858,034— plan?
Apr 6, 2018 FForm 4 →Apr 10, 11:49 am EDTG Larry LawrenceChief Financial Officer2,711$24.50$66,42052,150— plan?
Mar 31, 2018 MForm 4 →Apr 3, 4:44 pm EDTWilliam F Hughes Jr.Director898——898— plan?
Mar 28, 2018 SForm 4 →Mar 28, 4:57 pm EDTJohn ChisholmDirector4,511$23.20$104,65510,964−29.2% plan?
Mar 23, 2018 SForm 4 →Mar 27, 6:09 pm EDTJohn ChisholmDirector16,429$24.13$396,46315,475−51.5% plan?
Mar 23, 2018 FMForm 4 →Mar 27, 3:19 pm EDTG Larry LawrenceChief Financial Officer5,617$23.90$14,74654,861— plan?
Mar 23, 2018 FMForm 4 →Mar 27, 2:22 pm EDTJames R HazlettVP -- Technical Services5,513$23.90$12,26160,769— plan?
Mar 15, 2018 AForm 4 →Mar 19, 5:17 pm EDTJames R HazlettVP -- Technical Services16,000$24.55$392,80061,282— plan?
Mar 15, 2018 AForm 4 →Mar 19, 5:03 pm EDTG Larry LawrenceChief Financial Officer16,000$24.55$392,80055,478— plan?
Mar 15, 2018 AForm 4 →Mar 19, 4:42 pm EDTStephen Charles TaylorChief Executive Officer, Director56,749$24.55$1,393,188316,662— plan?
Mar 15, 2018 AForm 4 →Mar 19, 2:49 pm EDTWilliam F Hughes Jr.Director407$24.55$9,99237,970— plan?
Mar 15, 2018 AForm 4 →Mar 19, 2:05 pm EDTCharles G CurtisDirector4,072$24.55$99,96880,085— plan?
Mar 15, 2018 AForm 4 →Mar 19, 1:43 pm EDTJohn ChisholmDirector4,072$24.55$99,96831,904— plan?
Mar 15, 2018 AForm 4 →Mar 19, 1:20 pm EDTDavid L BradshawDirector4,072$24.55$99,96819,572— plan?
Mar 13, 2018 SForm 4 →Mar 14, 12:15 pm EDTDavid L BradshawDirector2,500$27.29$68,22015,500−13.9% plan?
Feb 14, 2018 FMForm 4 →Feb 16, 5:33 pm ESTStephen Charles TaylorCEO, Director22,417$26.30$33,611259,913— plan?
Jan 25, 2018 SForm 4 →Jan 29, 11:02 am ESTJames R HazlettVP -- Technical Services102$28.90$2,94845,282−0.22% plan?
Jan 25, 2018 MForm 4 →Jan 29, 11:02 am ESTJames R HazlettVP -- Technical Services102$17.51$1,78645,384— plan?
Jan 22, 2018 SForm 4 →Jan 24, 5:32 pm ESTJames R HazlettVP -- Technical Services1,890$28.95$54,72144,430−4.08% plan?
Jan 22, 2018 MForm 4 →Jan 24, 5:32 pm ESTJames R HazlettVP -- Technical Services1,377$17.51$24,11144,630— plan?
Jan 17, 2018 SForm 4/A →Jan 26, 1:45 pm ESTJames R HazlettVP -- Technical Services1,349$29.01$39,13445,282−2.89% plan?
Jan 12, 2018 SForm 4 →Jan 17, 6:01 pm ESTJames R HazlettVP -- Technical Services6,410$28.98$185,76744,943−12.5% plan?
Jan 12, 2018 MForm 4 →Jan 17, 6:01 pm ESTJames R HazlettVP -- Technical Services3,521$17.51$61,65348,636— plan?
Jan 6, 2018 FForm 4 →Jan 12, 5:08 pm ESTStephen Charles TaylorChief Executive Officer, Director15,897$27.40$435,578261,191— plan? late
Dec 27, 2017 SForm 4 →Dec 29, 2:55 pm ESTJohn ChisholmDirector3,900$26.05$101,59527,832−12.3% plan?
Dec 27, 2017 AForm 4 →Dec 29, 2:55 pm ESTJohn ChisholmDirector5,000$20.05$100,22529,232— plan?
Dec 21, 2017 AForm 4 →Dec 22, 4:15 pm ESTCharles G CurtisDirector2,500$20.48$51,20076,013— plan?
Dec 19, 2017 SForm 4 →Dec 20, 7:00 pm ESTStephen Charles TaylorChief Executive Officer, Director16,212$25.17$408,056277,088−5.53% plan?
Dec 19, 2017 AForm 4 →Dec 20, 7:00 pm ESTStephen Charles TaylorChief Executive Officer, Director16,212$20.06$325,213293,300— plan?
Dec 19, 2017 SForm 4 →Dec 20, 5:22 pm ESTG Larry LawrenceChief Financial Officer6,000$25.23$151,38039,478−13.2% plan?
Dec 11, 2017 MForm 4 →Dec 13, 6:39 pm ESTCharles G CurtisDirector2,500$19.61$49,02573,513— plan?
Oct 3, 2017 SForm 4 →Oct 4, 6:03 pm EDTStephen Charles TaylorCEO, Director3,874$28.58$110,719277,088−1.38% plan?
Oct 3, 2017 AForm 4 →Oct 4, 6:03 pm EDTStephen Charles TaylorCEO, Director3,874$20.06$77,712280,962— plan?
Sep 26, 2017 SForm 4 →Sep 28, 2:27 pm EDTJames R HazlettVP -- Technical Services12,350$28.02$346,00047,832−20.5% plan?
Jun 30, 2017 SForm 4 →Jul 5, 1:37 pm EDTStephen Charles TaylorChief Executive Officer, Director12,000$24.99$299,928277,088−4.15% plan?
Jun 20, 2017 SForm 4 →Jun 21, 2:07 pm EDTDavid L BradshawDirector2,540$23.60$59,94418,000−12.4% plan?
Jun 5, 2017 SForm 4 →Jun 5, 6:35 pm EDTWilliam F Hughes Jr.Director1,500$26.86$40,29037,563−3.84% plan?
May 2, 2017 SForm 4 →May 4, 4:44 pm EDTJames R HazlettVP - Technical Services400$28.01$11,20460,182−0.66% plan?
Apr 11, 2017 FForm 4 →Apr 12, 5:35 pm EDTG Larry LawrenceChief Financial Officer2,743$27.50$75,43345,478— plan?
Apr 11, 2017 FForm 4 →Apr 12, 5:22 pm EDTJames R HazlettVP -- Technical Services2,758$27.50$75,84560,582— plan?
Apr 11, 2017 SForm 4 →Apr 12, 5:22 pm EDTJames R HazlettVP -- Technical Services2,550$28.52$72,72663,340−3.87% plan?
Mar 23, 2017 AForm 4 →Mar 27, 5:55 pm EDTWilliam F Hughes Jr.Director399$25.05$9,99539,063— plan?
Mar 23, 2017 AForm 4 →Mar 27, 4:55 pm EDTCharles G CurtisDirector3,992$25.05$100,00071,013— plan?
Mar 23, 2017 AForm 4 →Mar 27, 4:42 pm EDTJohn ChisholmDirector3,992$25.05$100,00026,732— plan?
Mar 23, 2017 AForm 4 →Mar 27, 4:23 pm EDTDavid L BradshawDirector3,992$25.05$100,00020,540— plan?
Mar 23, 2017 AForm 4 →Mar 27, 3:06 pm EDTG Larry LawrenceChief Financial Officer5,000$25.05$125,25048,221— plan?
Mar 21, 2017 AForm 4 →Mar 27, 6:25 pm EDTJames R HazlettVP -- Technical Services5,000$25.05$125,25065,890— plan? late
Feb 14, 2017 AForm 4/A →Mar 15, 7:16 pm EDTStephen Charles TaylorChief Executive Officer, Director52,848$28.65$1,514,095350,586— plan?
Feb 14, 2017 AForm 4 →Feb 15, 5:13 pm ESTStephen Charles TaylorChief Executive Officer, Director70,464$28.65$2,018,794368,202— plan? amended
Jan 11, 2017 MForm 4 →Jan 12, 4:38 pm ESTStephen Charles TaylorChief Executive Officer, Director19,914$20.06$399,475297,738— plan?
Jan 6, 2017 FForm 4 →Apr 28, 3:21 pm EDTStephen Charles TaylorCEO, Director15,696$31.35$492,070289,088— plan? late
Jan 6, 2017 FForm 4 →Mar 16, 5:40 pm EDTStephen Charles TaylorChief Executive Officer, Director15,696$31.35$492,070334,890— plan? late
Jan 3, 2017 SForm 4 →Jan 5, 6:41 pm ESTStephen Charles TaylorChief Executive Officer, Director19,914$32.08$638,851277,824−6.69% plan?
Dec 29, 2016 SForm 4 →Jan 3, 2017, 2:25 pm ESTJohn ChisholmDirector1,100$31.76$34,93622,740−4.61% plan?
Dec 29, 2016 MForm 4 →Jan 3, 2017, 2:25 pm ESTJohn ChisholmDirector2,500$13.90$34,75023,840— plan?
Dec 9, 2016 SForm 4 →Dec 13, 4:57 pm ESTCharles G CurtisDirector8,000$33.30$266,40067,021−10.7% plan?
Nov 22, 2016 SForm 4 →Nov 23, 12:53 pm ESTJames R HazlettVP - Technical Services3,333$28.67$95,55760,890−5.19% plan?
Nov 17, 2016 SForm 4 →Nov 18, 12:54 pm ESTG Larry LawrenceChief Financial Officer8,000$26.99$215,92043,221−15.6% plan?
Nov 11, 2016 MForm 4 →Nov 14, 2:57 pm ESTCharles G CurtisDirector2,500$13.90$34,75075,021— plan?
Jun 23, 2016 SForm 4 →Jun 24, 2:56 pm EDTJames R HazlettVP -- Technical Services3,500$23.92$83,72064,223−5.17% plan?
Jun 23, 2016 SForm 4 →Jun 24, 2:20 pm EDTDavid L BradshawDirector2,500$24.35$60,87516,548−13.1% plan?
Apr 6, 2016 AForm 4 →Apr 8, 7:33 pm EDTDavid L BradshawDirector5,884$20.39$119,97519,666— plan?
Apr 6, 2016 AForm 4 →Apr 8, 7:30 pm EDTCharles G CurtisDirector5,884$20.39$119,97572,521— plan?
Apr 6, 2016 AForm 4 →Apr 8, 7:20 pm EDTJohn ChisholmDirector5,884$20.39$119,97522,164— plan?
Apr 6, 2016 AForm 4 →Apr 8, 7:16 pm EDTJames R HazlettVice President-Technical Svcs.20,000$20.39$407,80074,856— plan?
Apr 6, 2016 AForm 4 →Apr 8, 7:07 pm EDTWilliam F Hughes Jr.Director5,884$20.39$119,97528,664— plan?

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 10, 2026 AForm 4 →Jun 11, 10:27 am EDTDonald J TringaliDirector4,574——4,574—
Jun 10, 2026 AForm 4 →Jun 11, 10:19 am EDTNigel JenveyDirector3,521——3,521—
Jun 10, 2026 AForm 4 →Jun 11, 10:04 am EDTJean K HolleyDirector3,009——3,009—
Jun 10, 2026 AForm 4 →Jun 11, 9:57 am EDTGeorganne HodgesDirector3,009——3,009—
Jun 10, 2026 AForm 4 →Jun 11, 9:46 am EDTJohn A. Gallegos Jr.Director3,009——3,009—
Jun 10, 2026 AForm 4 →Jun 11, 9:36 am EDTJohn Earl JacksonDirector3,009——3,009—
Jun 5, 2026 MForm 4 →Jun 8, 3:39 pm EDTGeorganne HodgesDirector4,456——0—
Jun 5, 2026 MForm 4 →Jun 8, 3:26 pm EDTStephen Charles TaylorDirector4,456——0—
Jun 5, 2026 MForm 4 →Jun 8, 3:00 pm EDTDonald J TringaliDirector4,456——0—
Jun 5, 2026 MForm 4 →Jun 8, 2:44 pm EDTJean K HolleyDirector4,456——0—
Jun 5, 2026 MForm 4 →Jun 8, 2:19 pm EDTNigel JenveyDirector4,456——0—
Jun 5, 2026 MForm 4 →Jun 8, 1:20 pm EDTJohn A. Gallegos Jr.Director4,456——0—
Apr 1, 2026 MForm 4 →Jun 8, 1:00 pm EDTJohn A. Gallegos Jr.Director889——0— late
Feb 14, 2019 MForm 4 →Feb 28, 3:27 pm ESTStephen Charles TaylorChief Executive Officer, Director21,140——49,090— late
Feb 5, 2019 MForm 4 →Feb 6, 3:08 pm ESTStephen Charles TaylorChief Executive Officer, Director2,720——0—
Jan 31, 2019 MForm 4 →Feb 4, 6:03 pm ESTStephen Charles TaylorChief Executive Officer, Director12,789——2,720—
Jan 28, 2019 MForm 4 →Jan 30, 5:42 pm ESTStephen Charles TaylorChief Executive Officer, Director6,363——15,509—
Jan 23, 2019 MForm 4 →Jan 25, 5:43 pm ESTStephen Charles TaylorChief Executive Officer, Director8,025——21,872—
Jan 17, 2019 MForm 4 →Jan 22, 5:06 pm ESTStephen Charles TaylorChief Executive Officer, Director23,955——6,045—
Jan 8, 2019 MForm 4 →Jan 9, 3:52 pm ESTJohn ChisholmDirector2,500——0—
Dec 31, 2018 MForm 4 →Jan 2, 2019, 2:33 pm ESTWilliam F Hughes Jr.Director898——3,665—
Sep 30, 2018 MForm 4 →Oct 2, 2:16 pm EDTWilliam F Hughes Jr.Director898——4,563—
Sep 6, 2018 MForm 4 →Sep 6, 3:49 pm EDTStephen Charles TaylorCEO, Director5,000——0—
Aug 29, 2018 MForm 4 →Aug 31, 4:00 pm EDTStephen Charles TaylorCEO, Director13,776——4,000—
Aug 21, 2018 MForm 4 →Aug 23, 11:29 am EDTStephen Charles TaylorCEO, Director3,904——21,096—
Jun 30, 2018 MForm 4 →Jul 3, 12:54 pm EDTWilliam F Hughes Jr.Director899——5,461—
Mar 31, 2018 MForm 4 →Apr 3, 4:44 pm EDTWilliam F Hughes Jr.Director898——6,360—
Mar 23, 2018 MForm 4 →Aug 27, 6:20 pm EDTStephen Charles TaylorCEO, Director3,320——17,776— late
Mar 23, 2018 MForm 4 →Mar 27, 3:19 pm EDTG Larry LawrenceChief Financial Officer5,000——14,000—
Mar 23, 2018 MForm 4 →Mar 27, 2:22 pm EDTJames R HazlettVP -- Technical Services5,000——14,000—
Mar 15, 2018 AForm 4 →Mar 19, 5:17 pm EDTJames R HazlettVP -- Technical Services4,000——4,000—
Mar 15, 2018 AForm 4 →Mar 19, 5:03 pm EDTG Larry LawrenceChief Financial Officer4,000——4,000—
Mar 15, 2018 AForm 4 →Mar 19, 4:42 pm EDTStephen Charles TaylorChief Executive Officer, Director27,951——27,951—
Mar 15, 2018 AForm 4 →Mar 19, 2:49 pm EDTWilliam F Hughes Jr.Director3,665——3,665—
Feb 14, 2018 MForm 4 →Feb 16, 5:33 pm ESTStephen Charles TaylorCEO, Director21,139——42,279—
Jan 25, 2018 MForm 4 →Jan 29, 11:02 am ESTJames R HazlettVP -- Technical Services102——0—
Jan 22, 2018 MForm 4 →Jan 24, 5:32 pm ESTJames R HazlettVP -- Technical Services1,377——102—
Jan 12, 2018 MForm 4 →Jan 17, 6:01 pm ESTJames R HazlettVP -- Technical Services3,521——1,479—
Dec 27, 2017 MForm 4 →Dec 29, 2:55 pm ESTJohn ChisholmDirector5,000——0—
Dec 21, 2017 MForm 4 →Dec 22, 4:15 pm ESTCharles G CurtisDirector2,500——0—
Dec 19, 2017 MForm 4 →Dec 20, 7:00 pm ESTStephen Charles TaylorChief Executive Officer, Director16,212——0—
Dec 11, 2017 MForm 4 →Dec 13, 6:39 pm ESTCharles G CurtisDirector2,500——0—
Oct 3, 2017 MForm 4 →Oct 4, 6:03 pm EDTStephen Charles TaylorCEO, Director3,874——16,212—
Mar 23, 2017 AForm 4 →Mar 27, 6:25 pm EDTJames R HazlettVP -- Technical Services15,000——15,000—
Mar 23, 2017 AForm 4 →Mar 27, 5:55 pm EDTWilliam F Hughes Jr.Director3,593——3,593—
Mar 23, 2017 AForm 4 →Mar 27, 3:06 pm EDTG Larry LawrenceChief Financial Officer15,000——15,000—
Feb 14, 2017 AForm 4/A →Mar 15, 7:16 pm EDTStephen Charles TaylorChief Executive Officer, Director17,616——17,616—
Jan 11, 2017 MForm 4 →Jan 12, 4:38 pm ESTStephen Charles TaylorChief Executive Officer, Director19,914——20,086—
Dec 29, 2016 MForm 4 →Jan 3, 2017, 2:25 pm ESTJohn ChisholmDirector2,500——0—
Nov 11, 2016 MForm 4 →Nov 14, 2:57 pm ESTCharles G CurtisDirector2,500——0—
Mar 22, 2016 MForm 4 →Mar 24, 5:15 pm EDTStephen Charles TaylorPresident and CEO, Director15,000——0—
Dec 4, 2015 MForm 4 →Jan 14, 2016, 1:32 pm ESTCharles G CurtisDirector2,500——0— late
Sep 14, 2015 MForm 4 →May 12, 2016, 6:30 pm EDTWilliam F Hughes Jr.Director10,000——0— late
Mar 19, 2015 MForm 4 →Mar 23, 7:27 pm EDTWilliam F Hughes Jr.Director5,000——0—
Mar 18, 2015 MForm 4 →Mar 20, 9:16 pm EDTStephen Charles TaylorPresident and CEO, Director45,000——0—