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Public ownership evidence

Natural Gas Services Group, Inc. (NGS) Ownership Disclosures

Read NGS insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-11-07T14:03:26.246Z

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2026-09-042026-09-02TRINGALI DONALD JA59Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-02 and its public availability date is 2026-09-04. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code A: a award. An award is an acquisition but is not an open-market purchase. A purchase-following rule must not count it as code P.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001199696-26-000007 ↗13F 0001325447-26-000033 ↗13F 0001081019-26-000020 ↗

Recent Form 4 activity

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2026-09-042026-09-02TRINGALI DONALD JA59Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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First Eagle Investment Management, LLC2026-06-302026-08-25347,685$14,999,131None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25143$6,169None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-256,169$143,000None
Archer Investment Corp2026-06-302026-08-2010$431None
CANNELL CAPITAL LLC2026-06-302026-08-19122,387$5,279,775None
Empowered Funds, LLC2026-06-302026-08-1889,710$3,870,089None
BRASADA CAPITAL MANAGEMENT, LP2026-06-302026-08-1815,000$647,100None
SEI INVESTMENTS CO2026-06-302026-08-1523,114$997,138None
SEI INVESTMENTS CO2026-06-302026-08-151$40None
JPL Wealth Management, LLC2026-06-302026-08-152$87None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-158,372$361,168None
XTX Topco Ltd2026-06-302026-08-1539,550$1,706,187None
Aquatic Capital Management LLC2026-06-302026-08-158,286$357,458None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-1534,417$1,484,749None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-1534,417$1,484,749None
Qube Research & Technologies Ltd2026-06-302026-08-15122,284$5,275,332None
OSAIC HOLDINGS, INC.2026-06-302026-08-151,300$56,082None
OSAIC HOLDINGS, INC.2026-06-302026-08-156,253$269,733None
Squarepoint Ops LLC2026-06-302026-08-1520,887$901,065None
Man Group plc2026-06-302026-08-157,207$310,910None
Trexquant Investment LP2026-06-302026-08-1556,780$2,449,489None
MetLife Investment Management, LLC2026-06-302026-08-156,992$301,635None
Engineers Gate Manager LP2026-06-302026-08-157,314$315,526None
PDT Partners, LLC2026-06-302026-08-1510,075$434,636None
BOOTHBAY FUND MANAGEMENT, LLC2026-06-302026-08-155,420$233,819None
AWM Investment Company, Inc.2026-06-302026-08-15189,732$8,185,038None
Uniplan Investment Counsel, Inc.2026-06-302026-08-1577,249$3,332,524None
Legal & General Group Plc2026-06-302026-08-151,160$50,042None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1510,700$461,598Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-157,401$319,279None
BRASADA CAPITAL MANAGEMENT, LP2026-06-302026-08-150$647,100None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15178,871$7,716,495None
Numerai GP LLC2026-06-302026-08-1540,236$1,735,781None
LAZARD ASSET MANAGEMENT LLC2026-06-302026-08-1516,874$727,944None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15350$15,397None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15380,171$16,400,577None
Kemnay Advisory Services Inc.2026-06-302026-08-151,060$45,728None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-156$259None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-152$86None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1522,193$957,406None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15101$4,357None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1594$4,055None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-153$129None
ROYAL BANK OF CANADA2026-06-302026-08-15195$8,000None
ROYAL BANK OF CANADA2026-06-302026-08-153,500$151,000None
ROYAL BANK OF CANADA2026-06-302026-08-15460$20,000None
ROYAL BANK OF CANADA2026-06-302026-08-15353$15,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-156,320$238,517None
BRIDGEWAY CAPITAL MANAGEMENT, LLC2026-06-302026-08-15199,064$8,587,621None
D. E. Shaw & Co., Inc.2026-06-302026-08-1540,422$1,743,805None

90-day public filing window, up to 50 source positions.

First Eagle Investment Management, LLC ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Archer Investment Corp ↗CANNELL CAPITAL LLC ↗Empowered Funds, LLC ↗BRASADA CAPITAL MANAGEMENT, LP ↗SEI INVESTMENTS CO ↗SEI INVESTMENTS CO ↗JPL Wealth Management, LLC ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.