Who owns Natural Gas Services Group, Inc.?
Institutional ownership of NGS from SEC Form 13F filings across 114 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
114
13F holders
$277.9M
value, 2026 filers
51.5%
of shares outstanding (6.5M sh)
20
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of NGS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 961,577 | $41.5M | 0.0% | 7.6% | +21.8% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 513,031 | $22.1M | 0.0% | 4.1% | -49.8% |
| 3 | TWO SIGMA INVESTMENTS, LP | 410,330 | $17.7M | 0.0% | 3.2% | +12.4% |
| 4 | AMERICAN CENTURY COMPANIES INC | 408,165 | $17.6M | 0.0% | 3.2% | +20.4% |
| 5 | AMERIPRISE FINANCIAL INC | 380,171 | $16.4M | 0.0% | 3% | +12.6% |
| 6 | First Eagle Investment Management, LLC | 347,685 | $15.0M | 0.0% | 2.8% | -39.5% |
| 7 | MORGAN STANLEY | 322,382 | $13.9M | 0.0% | 2.6% | +22.5% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 320,351 | $13.8M | 0.0% | 2.5% | +12.1% |
| 9 | CITADEL ADVISORS LLC | 184,747 | $8.0M | 0.0% | 1.5% | -3.8% |
| 10 | MILLENNIUM MANAGEMENT LLC | 178,871 | $7.7M | 0.0% | 1.4% | -15.8% |
| 11 | Russell Investments Group, Ltd. | 147,583 | $6.4M | 0.0% | 1.2% | -17.8% |
| 12 | RBF Capital, LLC | 140,000 | $6.0M | 0.3% | 1.1% | -50.0% |
| 13 | Qube Research & Technologies Ltd | 122,284 | $5.3M | 0.0% | 1% | -33.0% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 116,937 | $5.0M | 0.0% | 0.9% | +48.2% |
| 15 | NORTHERN TRUST CORP | 115,575 | $5.0M | 0.0% | 0.9% | +36.6% |
| 16 | BNP PARIBAS FINANCIAL MARKETS | 106,639 | $4.6M | 0.0% | 0.8% | +30.6% |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 100,072 | $4.3M | 0.0% | 0.8% | +2.3% |
| 18 | Bank of New York Mellon Corp | 97,801 | $4.2M | 0.0% | 0.8% | +2.5% |
| 19 | Connor, Clark & Lunn Investment Management Ltd. | 80,456 | $3.5M | 0.0% | 0.6% | +17.6% |
| 20 | PRUDENTIAL FINANCIAL INC | 79,890 | $3.4M | 0.0% | 0.6% | -27.4% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 79,132 | $3.4M | 0.0% | 0.6% | +5.6% |
| 22 | RAYMOND JAMES FINANCIAL INC | 75,487 | $3.3M | 0.0% | 0.6% | -12.1% |
| 23 | MARSHALL WACE, LLP | 69,089 | $3.0M | 0.0% | 0.5% | -39.5% |
| 24 | NORGES BANKNEW | 61,000 | $2.6M | 0.0% | 0.5% | new |
| 25 | Invesco Ltd. | 55,943 | $2.4M | 0.0% | 0.4% | +8.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.