NATURAL GAS SERVICES GROUP INC
Total Trades
35
Buys
4
Sells
31
Largest Trade
$1M+
Insiders
6
Institutional Funds
99
Inst. Value
$1M+
Activist Filings
23
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Taylor Stephen Charles | Director | SELL | $500K+ | 20K | $33.35 | Dec 12, 2025 |
| HOLLEY JEAN K | Director | BUY | $50K–$100K | 2K | $32.04 | Dec 10, 2025 |
| HOLLEY JEAN K | Director | BUY | $15K–$50K | 935 | $32.00 | Dec 9, 2025 |
| Taylor Stephen Charles | Director | SELL | $500K+ | 20K | $32.12 | Dec 5, 2025 |
| Taylor Stephen Charles | Director | SELL | $500K+ | 20K | $30.84 | Nov 20, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 10K | $31.01 | Nov 18, 2025 |
| Taylor Stephen Charles | Director | SELL | $500K+ | 19K | $29.77 | Nov 12, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 11K | $29.06 | Nov 7, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 8K | $28.50 | Sep 26, 2025 |
| Taylor Stephen Charles | Director | SELL | $15K–$50K | 759 | $28.50 | Sep 25, 2025 |
| Taylor Stephen Charles | Director | SELL | $15K–$50K | 1K | $28.50 | Sep 24, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 11K | $27.95 | Sep 23, 2025 |
| Taylor Stephen Charles | Director | SELL | $1K–$15K | 63 | $27.50 | Sep 19, 2025 |
| Taylor Stephen Charles | Director | SELL | $15K–$50K | 2K | $27.50 | Sep 18, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 7K | $27.51 | Sep 17, 2025 |
| Taylor Stephen Charles | Director | SELL | $1K–$15K | 289 | $27.50 | Sep 16, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 10K | $27.00 | Sep 4, 2025 |
| HOLLEY JEAN K | Director | BUY | $50K–$100K | 4K | $26.58 | Sep 4, 2025 |
| Taylor Stephen Charles | Director | SELL | $500K+ | 25K | $24.90 | May 16, 2025 |
| Taylor Stephen Charles | Director | SELL | $500K+ | 19K | $28.80 | Jan 22, 2025 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 11K | $28.03 | Nov 26, 2024 |
| Taylor Stephen Charles | Director | SELL | $1M+ | 47K | $26.67 | Nov 21, 2024 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 13K | $25.13 | Nov 18, 2024 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 10K | $24.50 | Nov 13, 2024 |
| Taylor Stephen Charles | Director | SELL | $50K–$100K | 3K | $22.00 | Aug 28, 2024 |
| Taylor Stephen Charles | Director | SELL | $100K–$500K | 5K | $22.14 | Aug 22, 2024 |
| Jacobs Justin | CEO | BUY | $15K–$50K | 3K | $19.08 | Jun 18, 2024 |
| Beyer Leslie Ann | Director | SELL | $15K–$50K | 3K | $11.05 | Dec 8, 2022 |
| Taylor Stephen Charles | CEO | SELL | $50K–$100K | 4K | $15.00 | Jun 8, 2022 |
| Hazlett James R | VP - Technical Ser… | SELL | $1K–$15K | 972 | $15.00 | Jun 8, 2022 |
| Hazlett James R | VP - Technical Ser… | SELL | $15K–$50K | 3K | $14.02 | Jun 1, 2022 |
| CHISHOLM JOHN | Director | SELL | $1K–$15K | 500 | $11.79 | Apr 12, 2022 |
| CHISHOLM JOHN | Director | SELL | $15K–$50K | 2K | $10.68 | Apr 1, 2022 |
| CHISHOLM JOHN | Director | SELL | $15K–$50K | 3K | $11.92 | Mar 31, 2022 |
| Hazlett James R | VP - Technical Ser… | SELL | $15K–$50K | 3K | $13.22 | Mar 3, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 99 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 818K | $1M+ | SH |
| AWM Investment Company, Inc. | 677K | $1M+ | SH |
| AEGIS FINANCIAL CORP | 671K | $1M+ | SH |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 499K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 355K | $1M+ | SH |
| Pacific Ridge Capital Partners, LLC | 346K | $1M+ | SH |
| First Eagle Investment Management, LLC | 295K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 278K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 256K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 213K | $1M+ | SH |
| STATE STREET CORP | 199K | $1M+ | SH |
| LPL Financial LLC | 107K | $1M+ | SH |
| Empowered Funds, LLC | 96K | $1M+ | SH |
| Empowered Funds, LLC | 96K | $1M+ | SH |
| CROWN ADVISORS MANAGEMENT, INC. | 80K | $1M+ | SH |
| Bank of New York Mellon Corp | 77K | $1M+ | SH |
| PEAK6 LLC | 60K | $1M+ | SH (Call) |
| WHITE PINE CAPITAL LLC | 52K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 51K | $1M+ | SH |
| Phocas Financial Corp. | 44K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Jan 30, 2026
5.1%
641K shares
SC 13D/A · Jan 27, 2026
4.6%
575K shares
SC 13D/A · Jan 8, 2026
6.7%
838K shares
SC 13D/A · Jan 23, 2025
4.3%
531K shares
SC 13D/A · Jan 17, 2025
6.0%
755K shares
Mill Road Capital III, L.P. 2.
SC 13D/A · Dec 13, 2024
79.3M shares
Mill Road Capital III, L.P. 2.
SC 13D/A · Nov 26, 2024
83.0M shares
SC 13D · Nov 25, 2024
4.9%
605 shares
Aegis Financial Corporation 54-1712996
SC 13G/A · Nov 12, 2024
5.5%
682K shares
SC 13G · Nov 8, 2024
6.8%
847K shares
SC 13G · Oct 22, 2024
6.8%
847K shares
SC 13G/A · Jun 12, 2023
2.8%
346K shares
SC 13D/A · May 2, 2023
7.3%
912K shares
SC 13D/A · Mar 10, 2023
7.3%
905K shares
SC 13G/A · Feb 14, 2023
6.2%
769K shares
Dimensional Fund Advisors LP 30-0447847
SC 13G/A · Feb 10, 2023
7.5%
926K shares
SC 13D/A · Jan 11, 2023
9.3%
1.1M shares
SC 13D/A · Dec 30, 2022
9.3%
1.1M shares
SC 13D/A · Dec 23, 2022
6.6%
815K shares
SC 13D/A · Dec 9, 2022
9.3%
1.1M shares
SC 13D · Nov 28, 2022
8.0%
1.0M shares
SC 13G/A · Mar 10, 2022
10.1%
1.3M shares
SC 13G · Feb 11, 2022
5.2%
678K shares