Natural Gas Services Group, Inc. (NGS) ownership: AWM Investment Company, Inc. 9% · institutions 83% (13F 2026-03-31). Insider activity, 90 days: 0 sales, 0 open-market buys. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Dimensional Fund Advisors | 843797.00 | $31.85M | 6.5% | 2026-03-31 |
| BlackRock | 789780.00 | $29.81M | 6.1% | 2026-03-31 |
| Vanguard | 672492.00 | $25.38M | 5.2% | 2026-03-31 |
| Aegis Financial Corp | 587012.00 | $22.15M | 4.6% | 2026-03-31 |
| Weber Capital Management LLC /adv | 481764.00 | $18.18M | 3.7% | 2026-03-31 |
| Two Sigma | 365209.00 | $13.78M | 2.8% | 2026-03-31 |
| Royce & Associates LP | 353316.00 | $13.33M | 2.7% | 2026-03-31 |
| American Century | 339022.00 | $12.79M | 2.6% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-10 | |
| Sell | null | 2026-06-08 | |
| Sell | null | 2026-06-08 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.