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Insider Trading Intelligence
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ST

Stephen Charles Taylor

NGS
CHIEF EXECUTIVE OFFICER · NATURAL GAS SERVICES GROUP INC · CIK 0001316004
FILING MIX · LIFETIME28%/72%
BUYS
27
SELLS
70
TOTAL VALUE
$17.59M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
95,137
AVG SELL PX
$23.65
TRADE KIND
SHOWING 97 / 97
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
42 backtested trades · 8 horizons · 68 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stephen Charles Taylor, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d42+50.00%+0.06%-0.18%+0.24%-0.20%0.34
14d42+45.24%+0.65%+0.17%+0.48%-0.56%0.50
30d42+50.00%-0.07%+0.98%-1.04%-0.97%-0.91
60d42+16.67%+5.50%+1.56%+3.93%+6.97%2.45
90d42+14.29%+10.03%+1.50%+8.71%+13.20%4.49
180d42(2 pending)+32.50%+18.33%+3.71%+14.53%+19.35%4.25
1y42(25 pending)+5.88%+18.09%+13.86%+4.23%+3.99%—
2y42(41 pending)+0.00%+38.05%+32.68%+5.37%+5.37%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
NGS · 95,137 shares · as of Jun 8, 2026
0154,141308,282462,422616,563202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 27 buys / 70 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
334$42.42$14.2K95,137Jun 8, 2026Jun 9, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
4,456——200,046Jun 5, 2026Jun 8, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
2,228$39.87$88.8K197,818Jun 5, 2026Jun 8, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
4,456——0Jun 5, 2026Jun 8, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
30,000$37.23$1.12M175,432Mar 6, 2026Mar 9, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
70,000$37.58$2.63M205,432Mar 5, 2026Mar 9, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
336$37.52$12.6K114,961Mar 4, 2026Mar 4, 2026 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,000$33.54$335.4K275,432Dec 11, 2025Dec 12, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,000$33.16$331.6K285,432Dec 10, 2025Dec 12, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
20,000$32.12$642.4K295,432Dec 4, 2025Dec 5, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
412$30.50$12.6K114,625Dec 3, 2025Dec 5, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,000$31.37$313.7K315,432Nov 20, 2025Nov 20, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,000$30.31$303.1K325,432Nov 19, 2025Nov 20, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$31.01$310.1K335,432Nov 17, 2025Nov 18, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
8,748$29.50$258.1K355,432Nov 10, 2025Nov 12, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$30.00$300.0K345,432Nov 10, 2025Nov 12, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
9,900$29.00$287.1K365,432Nov 7, 2025Nov 7, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
1,252$29.50$36.9K364,180Nov 7, 2025Nov 7, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
100$29.00$2.9K375,332Nov 6, 2025Nov 7, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
7,915$28.50$225.6K375,432Sep 26, 2025Sep 26, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
759$28.50$21.6K383,347Sep 25, 2025Sep 25, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
1,326$28.50$37.8K384,106Sep 24, 2025Sep 24, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$28.01$280.1K385,432Sep 23, 2025Sep 23, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
1,457$27.50$40.1K395,432Sep 23, 2025Sep 23, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
63$27.50$1.7K396,889Sep 19, 2025Sep 19, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
1,638$27.50$45.0K396,952Sep 18, 2025Sep 18, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
6,553$27.51$180.3K398,590Sep 17, 2025Sep 17, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
289$27.50$7.9K405,143Sep 16, 2025Sep 16, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
2,098——405,432Sep 15, 2025Sep 15, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
2,098——0Sep 15, 2025Sep 15, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$27.00$270.0K403,334Sep 4, 2025Sep 4, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$26.50$265.0K423,334Aug 22, 2025Aug 22, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$26.00$260.0K413,334Aug 22, 2025Aug 22, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
459$24.78$11.4K114,213Aug 8, 2025Aug 25, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
4,456——4,456Jun 5, 2025Jun 9, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
25,000$24.90$622.5K433,334May 15, 2025May 16, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$29.01$290.1K438,387Jan 21, 2025Jan 22, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
9,400$28.57$268.5K448,387Jan 21, 2025Jan 22, 2025 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,000$27.15$271.5K457,787Dec 12, 2024Dec 16, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
600$28.50$17.1K467,787Nov 25, 2024Nov 26, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,000$28.00$280.0K468,387Nov 22, 2024Nov 26, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
38,479$26.89$1.03M478,387Nov 21, 2024Nov 21, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
1,521$26.00$39.5K516,866Nov 20, 2024Nov 21, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
6,516$25.50$166.2K518,387Nov 19, 2024Nov 21, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
3,442$25.51$87.8K524,903Nov 18, 2024Nov 18, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
10,042$25.01$251.1K528,345Nov 15, 2024Nov 18, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
2,191$24.50$53.7K538,387Nov 13, 2024Nov 13, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
4,713$24.51$115.5K540,578Nov 12, 2024Nov 13, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
3,096$24.50$75.9K545,291Nov 11, 2024Nov 13, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
4,195——4,195Sep 13, 2024Sep 16, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
3,181$22.00$70.0K548,387Aug 26, 2024Aug 28, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE10b5-1
10b5-1 plan
4,690$22.14$103.8K551,568Aug 20, 2024Nov 13, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
4,690$22.14$103.8K551,568Aug 20, 2024Aug 22, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
3,975$20.12$80.0K556,258Jun 30, 2024Jul 1, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
10,101——560,233Jun 30, 2024Jul 1, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
10,101——0Jun 30, 2024Jul 1, 2024 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
10,101$9.90$100.0K592,372Jun 30, 2023Jul 5, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO & President
42,240$9.90$418.2K550,132Jun 30, 2023Jul 5, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
10,101——10,101Jun 30, 2023Jul 5, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO & President
11,158$10.30$114.9K605,405Apr 28, 2023May 3, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO & President
11,158$10.30$114.9K605,405Apr 28, 2023May 2, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
3,138——133,701Apr 28, 2023May 3, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO & President
3,138——0Apr 28, 2023May 3, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
58,790$10.41$612.0K616,563Apr 25, 2023Apr 27, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO & President
23,134$10.41$240.8K582,271Apr 25, 2023May 15, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Interim CEO
14,325$9.49$135.9K557,773Mar 20, 2023Mar 22, 2023 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
60,839——572,098Aug 15, 2022Aug 16, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
3,918$15.00$58.8K511,259Jun 7, 2022Jun 8, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
3,137——130,563Apr 28, 2022May 2, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
3,137——3,138Apr 28, 2022May 2, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
11,112$12.32$136.9K515,177Apr 28, 2022May 2, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
12,953$11.86$153.6K526,289Mar 29, 2022Mar 31, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
10,973——127,426Mar 29, 2022Mar 31, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
10,973——6,275Mar 29, 2022Mar 31, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
14,311$11.14$159.4K539,242Mar 18, 2022Mar 21, 2022 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
11,112$9.12$101.3K553,553Apr 28, 2021Apr 30, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
3,138——116,453Apr 28, 2021Apr 30, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
3,138——17,248Apr 28, 2021Apr 30, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
10,973——20,386Mar 29, 2021Mar 31, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
12,954$9.19$119.0K556,079Mar 29, 2021Mar 31, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
10,973——113,315Mar 29, 2021Mar 31, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
100,626$8.91$896.6K569,033Mar 18, 2021Mar 22, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
109,212$8.91$973.1K577,619Mar 18, 2021Apr 2, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
9,317——102,342Mar 15, 2021Mar 17, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
9,317——31,359Mar 15, 2021Mar 17, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
7,620$9.74$74.2K468,407Mar 15, 2021Mar 17, 2021 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
84,720$5.64$477.8K476,027Apr 28, 2020Apr 30, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASEGRANT
Stock grant
9,413——40,676Apr 28, 2020Apr 30, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
10,973——31,263Mar 29, 2020Mar 31, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
13,211$4.75$62.8K391,307Mar 29, 2020Mar 31, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
10,973——93,025Mar 29, 2020Mar 31, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
9,317——82,052Mar 15, 2020Mar 18, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
9,317——42,236Mar 15, 2020Mar 18, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
7,663$6.25$47.9K404,248Mar 15, 2020Mar 18, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
21,139——51,553Feb 14, 2020Feb 19, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
PURCHASE
Chief Executive Officer
21,139——72,735Feb 14, 2020Feb 19, 2020 ↗View →
NGS
NATURAL GAS SERVICES GROUP INC
SALE
Chief Executive Officer
1,477$10.62$15.7K411,911Feb 14, 2020Feb 19, 2020 ↗View →
Other insiders · NGS
Loading peer insiders…
About this filer
CIK 0001316004
ROLE
Chief Executive Officer
PRIMARY
NGS
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001316004DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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