Natural Gas Services Group (NGS)
Natural Gas Services Group on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE, classified by the SEC as oil & gas field services, nec.
485K
Short interest
settlement 2026-10-15
5.3
Days to cover
+1.3 days vs prior
44.2%
Short share of volume
2026-11-02
82
Fails to deliver
settlement 2026-10-13
Mon 9 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in NGS is 484,935 shares, up 11,961 shares over the last month. Over the last 48 readings it ranged from 117,854 shares (14 March 2025) to 484,935 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 91K shares a day that is 5.3 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/ngs" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 484,935 | +4.8% | 91,194 | 5.32 |
| 2026-09-30 | 462,586 | -2.2% | 115,910 | 3.99 |
| 2026-09-15 | 472,974 | +5.5% | 122,440 | 3.86 |
| 2026-08-31 | 448,223 | +5.2% | 126,346 | 3.55 |
| 2026-08-14 | 426,168 | +0.2% | 115,368 | 3.69 |
| 2026-07-31 | 425,353 | +0.5% | 133,558 | 3.18 |
| 2026-07-15 | 423,170 | -5.5% | 119,165 | 3.55 |
| 2026-06-30 | 447,591 | +44.7% | 192,550 | 2.32 |
| 2026-06-15 | 309,308 | +2.5% | 102,479 | 3.02 |
| 2026-05-29 | 301,889 | +9.2% | 119,538 | 2.53 |
| 2026-05-15 | 276,369 | +14.8% | 101,927 | 2.71 |
| 2026-04-30 | 240,841 | -11.7% | 88,914 | 2.71 |
| 2026-04-15 | 272,665 | +9.0% | 77,184 | 3.53 |
| 2026-03-31 | 250,160 | +2.4% | 141,601 | 1.77 |
| 2026-03-13 | 244,257 | -0.4% | 120,940 | 2.02 |
| 2026-02-27 | 245,138 | -2.9% | 77,188 | 3.18 |
| 2026-02-13 | 252,463 | +25.4% | 126,604 | 1.99 |
| 2026-01-30 | 201,267 | -11.3% | 204,461 | 1.00 |
| 2026-01-15 | 226,935 | -10.8% | 148,678 | 1.53 |
| 2025-12-31 | 254,311 | -14.4% | 87,146 | 2.92 |
| 2025-12-15 | 297,065 | +15.1% | 96,395 | 3.08 |
| 2025-11-28 | 258,149 | -17.1% | 104,215 | 2.48 |
| 2025-11-14 | 311,321 | +25.9% | 77,026 | 4.04 |
| 2025-10-31 | 247,256 | -3.4% | 45,201 | 5.47 |
| 2025-10-15 | 255,912 | -17.3% | 47,865 | 5.35 |
| 2025-09-30 | 309,363 | +15.9% | 77,718 | 3.98 |
| 2025-09-15 | 266,924 | +7.5% | 49,426 | 5.40 |
| 2025-08-29 | 248,315 | -1.7% | 51,657 | 4.81 |
| 2025-08-15 | 252,496 | +11.6% | 69,095 | 3.65 |
| 2025-07-31 | 226,177 | -8.4% | 47,705 | 4.74 |
| 2025-07-15 | 246,923 | -16.5% | 52,376 | 4.71 |
| 2025-06-30 | 295,598 | +26.1% | 98,018 | 3.02 |
| 2025-06-13 | 234,372 | -2.3% | 77,696 | 3.02 |
| 2025-05-30 | 239,858 | +14.9% | 65,528 | 3.66 |
| 2025-05-15 | 208,752 | +11.3% | 77,620 | 2.69 |
| 2025-04-30 | 187,631 | +1.0% | 68,704 | 2.73 |
| 2025-04-15 | 185,832 | +38.2% | 96,599 | 1.92 |
| 2025-03-31 | 134,496 | +14.1% | 91,285 | 1.47 |
| 2025-03-14 | 117,854 | -25.9% | 78,766 | 1.50 |
| 2025-02-28 | 159,065 | -44.3% | 54,759 | 2.90 |
| 2025-02-14 | 285,500 | +13.5% | 52,981 | 5.39 |
| 2025-01-31 | 251,518 | +4.7% | 126,811 | 1.98 |
| 2025-01-15 | 240,181 | +19.9% | 75,252 | 3.19 |
| 2024-12-31 | 200,279 | +53.0% | 78,254 | 2.56 |
| 2024-12-13 | 130,938 | +2.2% | 61,781 | 2.12 |
| 2024-11-29 | 128,162 | -3.1% | 106,248 | 1.21 |
| 2024-11-15 | 132,223 | +4.5% | 53,963 | 2.45 |
| 2024-10-31 | 126,481 | -17.6% | 28,957 | 4.37 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of NGS volume is 44.2%, up 4.5 points over the last five sessions. Over the last 30 readings it ranged from 23.8% (14 October 2026) to 80.7% (9 October 2026). The latest reading is 7.5 points below the 30-session average of 51.7%, on 49K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 22K | 49K | 44.2% | 943 |
| 2026-10-30 | 12K | 26K | 44.4% | 0 |
| 2026-10-29 | 11K | 19K | 58.7% | 0 |
| 2026-10-28 | 14K | 38K | 37.4% | 40 |
| 2026-10-27 | 10K | 17K | 60.2% | 840 |
| 2026-10-26 | 9K | 22K | 39.6% | 89 |
| 2026-10-23 | 18K | 32K | 56.1% | 296 |
| 2026-10-22 | 21K | 37K | 56.1% | 0 |
| 2026-10-21 | 10K | 18K | 55.7% | 0 |
| 2026-10-20 | 12K | 19K | 61.8% | 0 |
| 2026-10-19 | 12K | 24K | 49.6% | 0 |
| 2026-10-16 | 15K | 38K | 39.3% | 0 |
| 2026-10-15 | 22K | 39K | 56.9% | 0 |
| 2026-10-14 | 12K | 50K | 23.8% | 598 |
| 2026-10-13 | 9K | 15K | 59.3% | 0 |
| 2026-10-12 | 9K | 18K | 49.1% | 0 |
| 2026-10-09 | 23K | 29K | 80.7% | 0 |
| 2026-10-08 | 10K | 14K | 70.9% | 0 |
| 2026-10-07 | 18K | 26K | 68.9% | 0 |
| 2026-10-06 | 13K | 24K | 54.6% | 0 |
| 2026-10-05 | 24K | 59K | 39.8% | 1 |
| 2026-10-02 | 31K | 49K | 62.0% | 0 |
| 2026-10-01 | 24K | 47K | 51.3% | 0 |
| 2026-09-30 | 17K | 30K | 57.5% | 0 |
| 2026-09-29 | 16K | 43K | 37.8% | 0 |
| 2026-09-28 | 15K | 28K | 53.0% | 0 |
| 2026-09-25 | 16K | 36K | 45.1% | 0 |
| 2026-09-24 | 10K | 26K | 39.0% | 0 |
| 2026-09-23 | 13K | 31K | 42.9% | 64 |
| 2026-09-22 | 24K | 44K | 55.1% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 13 October 2026, the fails-to-deliver balance in NGS is 82 shares, unchanged over the last settlement date. Over the last 30 readings it ranged from 1 share (10 February 2026) to 29,502 shares (9 March 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-13 | 82 | $32.90 | $3K |
| 2026-10-09 | 82 | $33.18 | $3K |
| 2026-10-06 | 167 | $33.58 | $6K |
| 2026-09-29 | 24,178 | $32.75 | $792K |
| 2026-09-17 | 22 | $36.15 | $795 |
| 2026-09-14 | 1,798 | $37.87 | $68K |
| 2026-09-10 | 3,404 | $38.08 | $130K |
| 2026-09-09 | 11,987 | $36.93 | $443K |
| 2026-09-08 | 11,435 | $36.33 | $415K |
| 2026-09-03 | 4,110 | $35.30 | $145K |
| 2026-08-24 | 466 | $35.49 | $17K |
| 2026-08-11 | 6 | $36.97 | $222 |
| 2026-08-05 | 514 | $37.23 | $19K |
| 2026-07-29 | 717 | $35.76 | $26K |
| 2026-07-16 | 42 | $41.11 | $2K |
| 2026-06-12 | 834 | $42.42 | $35K |
| 2026-06-08 | 77 | $39.87 | $3K |
| 2026-05-22 | 434 | $42.36 | $18K |
| 2026-05-21 | 434 | $42.42 | $18K |
| 2026-05-20 | 877 | $43.39 | $38K |
| 2026-05-19 | 877 | $43.73 | $38K |
| 2026-05-18 | 26,718 | $42.40 | $1.1M |
| 2026-05-15 | 22,718 | $42.09 | $956K |
| 2026-05-12 | 242 | $40.14 | $10K |
| 2026-04-22 | 2 | $37.30 | $75 |
| 2026-03-13 | 2,389 | $36.17 | $86K |
| 2026-03-09 | 29,502 | $37.80 | $1.1M |
| 2026-02-13 | 54 | $36.39 | $2K |
| 2026-02-10 | 1 | $36.57 | $37 |
| 2026-02-09 | 2,147 | $36.48 | $78K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for NGS in the last 90 days. The most recent filings are listed below. Latest filing: TRINGALI DONALD J (Director) on 2026-09-02.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-02 | TRINGALI DONALD J | Director | Grant | 59 | $35.22 | $2K | 14K |
| 2026-06-08 | Taylor Stephen Charles | Director | Grant | 334 | $42.42 | $14K | 95K |
| 2026-06-08 | TRINGALI DONALD J | Director | Grant | 49 | $42.42 | $2K | 18K |
| 2026-06-05 | Gallegos John A. Jr. | Director | Grant | 4K | price not stated in the filing | not stated | 5K |
| 2026-06-05 | Jenvey Nigel | Director | Grant | 4K | price not stated in the filing | not stated | 26K |
| 2026-06-05 | HOLLEY JEAN K | Director | Grant | 4K | price not stated in the filing | not stated | 19K |
| 2026-06-05 | TRINGALI DONALD J | Director | Grant | 4K | price not stated in the filing | not stated | 18K |
| 2026-06-05 | TRINGALI DONALD J | Director | Grant | 446 | price not stated in the filing | not stated | 2K |
| 2026-06-05 | Taylor Stephen Charles | Director | Other transaction | 2K | $39.87 | $89K | 198K |
| 2026-06-05 | Taylor Stephen Charles | Director | Grant | 4K | price not stated in the filing | not stated | 200K |
| 2026-06-05 | Hodges Georganne | Director | Other transaction | 2K | $39.87 | $89K | 11K |
| 2026-06-05 | Hodges Georganne | Director | Grant | 4K | price not stated in the filing | not stated | 13K |
| 2026-04-01 | Gallegos John A. Jr. | Director | Grant | 889 | price not stated in the filing | not stated | 889 |
| 2026-03-13 | Jacobs Justin | Chief Executive Officer | Tax withholding | 4K | $35.59 | $158K | 27K |
| 2026-03-13 | Jacobs Justin | Chief Executive Officer | Grant | 12K | price not stated in the filing | not stated | 31K |
| 2026-03-06 | Taylor Stephen Charles | Director | Sell | 30K | $37.23 | $1.1M | 175K |
| 2026-03-05 | Taylor Stephen Charles | Director | Sell | 70K | $37.58 | $2.6M | 205K |
| 2026-03-04 | Taylor Stephen Charles | Director | Grant | 336 | $37.52 | $13K | 115K |
| 2026-03-04 | TRINGALI DONALD J | Director | Grant | 40 | $37.52 | $2K | 14K |
| 2026-02-03 | Jacobs Justin | Chief Executive Officer | Tax withholding | 4K | $34.52 | $148K | 19K |
| 2026-02-03 | Jacobs Justin | Chief Executive Officer | Grant | 10K | price not stated in the filing | not stated | 24K |
| 2025-12-30 | Eckert Ian M | Chief Financial Officer | Grant | 3K | price not stated in the filing | not stated | 3K |
| 2025-12-30 | Eckert Ian M | Chief Financial Officer | Tax withholding | 768 | $33.99 | $26K | 2K |
| 2025-12-11 | Taylor Stephen Charles | Director | Sell | 10K | $33.54 | $335K | 275K |
| 2025-12-10 | Taylor Stephen Charles | Director | Sell | 10K | $33.16 | $332K | 285K |
| 2025-12-08 | HOLLEY JEAN K | Director | Buy | 935 | $32.00 | $30K | 12K |
| 2025-12-08 | HOLLEY JEAN K | Director | Buy | 2K | $32.04 | $70K | 14K |
| 2025-12-04 | Taylor Stephen Charles | Director | Sell | 20K | $32.12 | $642K | 295K |
| 2025-12-03 | Taylor Stephen Charles | Director | Grant | 412 | $30.50 | $13K | 115K |
| 2025-12-03 | TRINGALI DONALD J | Director | Grant | 49 | $30.50 | $1K | 14K |
| 2025-11-20 | Taylor Stephen Charles | Director | Sell | 10K | $31.37 | $314K | 315K |
| 2025-11-19 | Taylor Stephen Charles | Director | Sell | 10K | $30.31 | $303K | 325K |
| 2025-11-17 | Taylor Stephen Charles | Director | Sell | 10K | $31.01 | $310K | 335K |
| 2025-11-10 | Taylor Stephen Charles | Director | Sell | 10K | $30.00 | $300K | 345K |
| 2025-11-10 | Taylor Stephen Charles | Director | Sell | 9K | $29.50 | $258K | 355K |
| 2025-11-07 | Taylor Stephen Charles | Director | Sell | 1K | $29.50 | $37K | 364K |
| 2025-11-07 | Taylor Stephen Charles | Director | Sell | 10K | $29.00 | $287K | 365K |
| 2025-11-06 | Taylor Stephen Charles | Director | Sell | 100 | $29.00 | $3K | 375K |
| 2025-11-03 | HOLLEY JEAN K | Director | Grant | 3K | price not stated in the filing | not stated | 11K |
| 2025-11-03 | Tucker Brian L | President & COO | Grant | 2K | price not stated in the filing | not stated | 18K |
| 2025-11-03 | Tucker Brian L | President & COO | Tax withholding | 4K | $27.84 | $107K | 14K |
| 2025-11-03 | Tucker Brian L | President & COO | Grant | 6K | price not stated in the filing | not stated | 16K |
| 2025-11-03 | Tucker Brian L | President & COO | Grant | 2K | price not stated in the filing | not stated | 10K |
| 2025-11-03 | Tucker Brian L | President & COO | Grant | 2K | price not stated in the filing | not stated | 8K |
| 2025-11-03 | Tucker Brian L | President & COO | Grant | 128 | price not stated in the filing | not stated | 5K |
| 2025-10-09 | Tucker Brian L | President & COO | Grant | 2K | price not stated in the filing | not stated | 6K |
| 2025-10-09 | Tucker Brian L | President & COO | Tax withholding | 644 | $27.10 | $17K | 5K |
| 2025-09-26 | Taylor Stephen Charles | Director | Sell | 8K | $28.50 | $226K | 375K |
| 2025-09-25 | Taylor Stephen Charles | Director | Sell | 759 | $28.50 | $22K | 383K |
| 2025-09-24 | Taylor Stephen Charles | Director | Sell | 1K | $28.50 | $38K | 384K |
| 2025-09-23 | Taylor Stephen Charles | Director | Sell | 10K | $28.01 | $280K | 385K |
| 2025-09-23 | Taylor Stephen Charles | Director | Sell | 1K | $27.50 | $40K | 395K |
| 2025-09-19 | Taylor Stephen Charles | Director | Sell | 63 | $27.50 | $2K | 397K |
| 2025-09-18 | Taylor Stephen Charles | Director | Sell | 2K | $27.50 | $45K | 397K |
| 2025-09-17 | Taylor Stephen Charles | Director | Sell | 7K | $27.51 | $180K | 399K |
| 2025-09-16 | Taylor Stephen Charles | Director | Sell | 289 | $27.50 | $8K | 405K |
| 2025-09-15 | Taylor Stephen Charles | Director | Grant | 2K | price not stated in the filing | not stated | 405K |
| 2025-09-04 | Taylor Stephen Charles | Director | Sell | 10K | $27.00 | $270K | 403K |
| 2025-09-04 | HOLLEY JEAN K | Director | Buy | 4K | $26.58 | $100K | 8K |
| 2025-08-22 | Taylor Stephen Charles | Director | Sell | 10K | $26.00 | $260K | 413K |
| 2025-08-22 | Taylor Stephen Charles | Director | Sell | 10K | $26.50 | $265K | 423K |
| 2025-08-14 | HOLLEY JEAN K | Director | Buy | 4K | $24.49 | $99K | 4K |
| 2025-08-08 | TRINGALI DONALD J | Director | Grant | 34 | $24.78 | $843 | 14K |
| 2025-08-08 | Taylor Stephen Charles | Director | Grant | 459 | $24.78 | $11K | 114K |
| 2025-06-13 | Jenvey Nigel | Director | Grant | 3K | price not stated in the filing | not stated | 22K |
| 2025-06-13 | Hodges Georganne | Director | Grant | 3K | price not stated in the filing | not stated | 7K |
| 2025-06-13 | Hodges Georganne | Director | Grant | 1K | price not stated in the filing | not stated | 1K |
| 2025-06-13 | TRINGALI DONALD J | Director | Grant | 5K | price not stated in the filing | not stated | 14K |
| 2025-06-13 | TRINGALI DONALD J | Director | Grant | 562 | price not stated in the filing | not stated | 2K |
| 2025-05-15 | Taylor Stephen Charles | Director | Sell | 25K | $24.90 | $623K | 433K |
| 2025-04-22 | Tucker Brian L | President & COO | Grant | 4K | price not stated in the filing | not stated | 5K |
| 2025-04-22 | Tucker Brian L | President & COO | Tax withholding | 2K | $22.88 | $35K | 4K |
| 2025-01-29 | Jacobs Justin | Chief Executive Officer | Grant | 10K | price not stated in the filing | not stated | 13K |
| 2025-01-21 | Taylor Stephen Charles | Director | Sell | 10K | $29.01 | $290K | 438K |
| 2025-01-21 | Taylor Stephen Charles | Director | Sell | 9K | $28.57 | $269K | 448K |
| 2024-12-12 | Taylor Stephen Charles | Director | Sell | 10K | $27.15 | $272K | 458K |
| 2024-11-25 | Taylor Stephen Charles | Director | Sell | 600 | $28.50 | $17K | 468K |
| 2024-11-22 | Taylor Stephen Charles | Director | Sell | 10K | $28.00 | $280K | 468K |
| 2024-11-21 | Taylor Stephen Charles | Director | Sell | 38K | $26.89 | $1.0M | 478K |
| 2024-11-20 | Taylor Stephen Charles | Director | Sell | 2K | $26.00 | $40K | 517K |
| 2024-11-19 | Taylor Stephen Charles | Director | Sell | 7K | $25.50 | $166K | 518K |
| 2024-11-18 | Taylor Stephen Charles | Director | Sell | 3K | $25.51 | $88K | 525K |
| 2024-11-15 | Taylor Stephen Charles | Director | Sell | 10K | $25.01 | $251K | 528K |
| 2024-11-13 | Taylor Stephen Charles | Director | Sell | 2K | $24.50 | $54K | 538K |
| 2024-11-12 | Taylor Stephen Charles | Director | Sell | 5K | $24.51 | $116K | 541K |
| 2024-11-11 | Taylor Stephen Charles | Director | Sell | 3K | $24.50 | $76K | 545K |
| 2024-10-28 | Hodges Georganne | Director | Exercise or conversion | 5K | $0.00 | $0 | 5K |
| 2024-10-21 | Tucker Brian L | President & COO | Tax withholding | 643 | $20.45 | $13K | 1K |
| 2024-10-21 | Tucker Brian L | President & COO | Grant | 2K | price not stated in the filing | not stated | 2K |
| 2024-08-26 | Taylor Stephen Charles | Director | Sell | 3K | $22.00 | $70K | 548K |
| 2024-08-20 | Taylor Stephen Charles | Director | Sell | 5K | $22.14 | $104K | 552K |
| 2024-06-30 | Taylor Stephen Charles | Director | Tax withholding | 4K | $20.12 | $80K | 556K |
| 2024-06-30 | Taylor Stephen Charles | Director | Grant | 10K | price not stated in the filing | not stated | 560K |
| 2024-06-14 | Jacobs Justin | Chief Executive Officer | Buy | 3K | $19.08 | $48K | 3K |
| 2024-05-13 | BRADSHAW DAVID L | Director | Grant | 9K | price not stated in the filing | not stated | 46K |
| 2024-05-09 | Jenvey Nigel | Director | Grant | 9K | price not stated in the filing | not stated | 19K |
| 2024-05-09 | TRINGALI DONALD J | Director | Grant | 947 | $0.00 | $0 | 947 |
| 2024-05-09 | TRINGALI DONALD J | Director | Grant | 9K | $0.00 | $0 | 9K |
| 2024-05-09 | Jacobs Justin | Chief Executive Officer | Returned to company | 2K | $0.00 | $0 | 362 |
| 2024-05-09 | Jacobs Justin | Chief Executive Officer | Other transaction | 7K | $0.00 | $0 | 3K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON16 Form 144 notices on file for NGS worth $7.7M at the prices reported; 0 in the last 90 days worth $0. Latest: Taylor Stephen Charles filed on 2026-03-06 to sell 30,000 shares ($1.1M) from 2026-03-06.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-03-06 | Taylor Stephen CharlesDirector | 30K | $1.1M | 0.239% | 2026-03-06 | RBC CAPITAL MARKETS LLC |
| 2026-03-05 | Taylor Stephen CharlesDirector | 70K | $2.6M | 0.557% | 2026-03-05 | RBC CAPITAL MARKETS LLC |
| 2025-12-11 | Taylor Stephen CharlesDirector | 10K | $335K | 0.080% | 2025-12-11 | RBC CAPITAL MARKETS LLC |
| 2025-12-10 | Taylor Stephen CharlesDirector | 10K | $332K | 0.080% | 2025-12-10 | RBC CAPITAL MARKETS LLC |
| 2025-12-04 | Taylor Stephen CharlesDirector | 20K | $642K | 0.159% | 2025-12-04 | RBC CAPITAL MARKETS LLC |
| 2025-11-20 | Taylor Stephen CharlesDirector | 10K | $314K | 0.080% | 2025-11-20 | RBC CAPITAL MARKETS LLC |
| 2025-11-19 | Taylor Stephen CharlesDirector | 10K | $303K | 0.080% | 2025-11-19 | RBC CAPITAL MARKETS LLC |
| 2025-11-17 | Taylor Stephen CharlesDirector | 10K | $310K | 0.080% | 2025-11-17 | RBC CAPITAL MARKETS LLC |
| 2025-11-10 | Taylor Stephen CharlesDirector | 19K | $558K | 0.149% | 2025-11-10 | RBC CAPITAL MARKETS LLC |
| 2025-11-07 | Taylor Stephen CharlesDirector | 11K | $324K | 0.089% | 2025-11-07 | RBC CAPITAL MARKETS LLC |
| 2025-11-06 | Taylor Stephen CharlesDirector | 100 | $3K | 0.001% | 2025-11-06 | RBC CAPITAL MARKETS LLC |
| 2025-09-26 | Taylor Stephen CharlesDirector | 8K | $226K | 0.063% | 2025-09-26 | RBC CAPITAL MARKETS LLC |
| 2025-09-25 | Taylor Stephen CharlesDirector | 759 | $22K | 0.006% | 2025-09-25 | RBC CAPITAL MARKETS LLC |
| 2025-09-24 | Taylor Stephen CharlesDirector | 1K | $38K | 0.011% | 2025-09-24 | RBC CAPITAL MARKETS LLC |
| 2025-09-23 | Taylor Stephen CharlesDirector | 10K | $280K | 0.080% | 2025-09-23 | RBC CAPITAL MARKETS LLC |
| 2025-09-16 | Taylor Stephen CharlesDirector | 10K | $275K | 0.080% | 2025-09-16 | RBC CAPITAL MARKETS LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of NGS in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Hoak J. Hale at 6.7% of the class (838,128 shares), filed 2026-01-07 for an event on 2026-01-05.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-05-04 | 13G/Ano. 2 | AWM Investment Company, Inc.investment adviser | 215K | 1.7% | 2026-03-31 |
| 2026-04-28 | 13G/Ano. 5 | Franklin Mutual Advisers, LLCinvestment adviser, other entity | 0 | 0.0% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-01-26 | 13D/Ano. 5 | Hoak Public Equities, LPpartnership | 575K | 4.6% | 2026-01-22 |
| 2026-01-26 | 13D/Ano. 5 | Hoak Fund Management, L.P.partnership | 575K | 4.6% | 2026-01-22 |
| 2026-01-26 | 13D/Ano. 5 | Hoak & Co.corporation | 575K | 4.6% | 2026-01-22 |
| 2026-01-26 | 13D/Ano. 5 | J. Hale Hoakindividual | 575K | 4.6% | 2026-01-22 |
| 2026-01-26 | 13D/Ano. 5 | James M. Hoakindividual | 575K | 4.6% | 2026-01-22 |
| 2026-01-07 | 13D/Ano. 4 | Hoak J. Haleindividual | 838K | 6.7% | 2026-01-05 |
| 2026-01-07 | 13D/Ano. 4 | HOAK JAMES Mindividual | 838K | 6.7% | 2026-01-05 |
13F holders
Tracked managers holding NGS at their latest 13F. JSON7 of the 30 tracked managers held NGS at their latest 13F, $46.4M in total at quarter-end prices. Two Sigma Investments is the largest at $17.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 4 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 410K | $17.7M | 0.01% | +45K |
| Renaissance Technologies | 2026-06-30 | 214K | $9.2M | 0.01% | -24K |
| Citadel Advisors | 2026-06-30 | 185K | $8.0M | 0.00% | -7K |
| Millennium Management | 2026-06-30 | 179K | $7.7M | 0.00% | -34K |
| D. E. Shaw & Co. | 2026-06-30 | 40K | $1.7M | 0.00% | +803 |
| Point72 Asset Management | 2026-06-30 | 24K | $1.0M | 0.00% | -13K |
| AQR Capital Management | 2026-06-30 | 22K | $966K | 0.00% | +6K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Natural Gas Services Group in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Natural Gas Services Group (NGS), SEC CIK 1084991, listed on NYSE, classified by the SEC as oil & gas field services, nec. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-13.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-03-06.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-05-04.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-12.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-02.JSON and CSV
- Company record
- EDGAR filing index for CIK 1084991Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of NGS is sold short?
484,935 shares were held short at the 2026-10-15 settlement, 5.3 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is NGS's daily short volume?
On 2026-11-02, 21,731 of the 49,196 NGS shares reported to FINRA were sold short, 44.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does NGS have fails to deliver?
The SEC's latest file shows 82 NGS shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.
Are NGS insiders buying or selling?
No open-market insider trades were reported for NGS in the last 90 days. The most recent filings are listed below. Latest filing: TRINGALI DONALD J (Director) on 2026-09-02.
Have NGS insiders filed to sell?
16 Form 144 notices on file for NGS worth $7.7M at the prices reported; 0 in the last 90 days worth $0. Latest: Taylor Stephen Charles filed on 2026-03-06 to sell 30,000 shares ($1.1M) from 2026-03-06.
Who owns 5% or more of NGS?
2 holders report 5% or more of NGS in their latest filing, all on Schedule 13D (active intent). The largest reported stake is Hoak J. Hale at 6.7% of the class (838,128 shares), filed 2026-01-07 for an event on 2026-01-05.
Which tracked 13F managers own NGS?
7 of the 30 tracked 13F managers held NGS shares at their latest filing, $46.4M in all. The largest: Two Sigma Investments (410K shares, $17.7M), Renaissance Technologies (214K shares, $9.2M), Ken Griffin's Citadel Advisors (185K shares, $8.0M), Izzy Englander's Millennium Management (179K shares, $7.7M), D. E. Shaw & Co. (40K shares, $1.7M), Steve Cohen's Point72 Asset Management (24K shares, $1.0M). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.