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Natural Gas Services Group, Inc. (NGS) institutional ownership

Latest close $36.40 Jul 27, 2026
Market cap$477M 52-week range SectorEnergy
Funds holding · Q1 2026
132
reported NGS position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
85 buyers · 47 sellers

Natural Gas Services Group, Inc. (NGS) price and institutional activity

Dates

Q1 2026

$0 bought by 85 investors
Two Sigma Investments, LPPhocas Financial Corp. +83 more
$0 sold by 47 investors
Awm Investment Company, Inc.Ameriprise Financial Inc +45 more
Bought Sold Totals per quarter; hover a bar for the names.

Natural Gas Services Group, Inc. (NGS) institutional activity · 132

Investor Type Est. change Change Δ Own Date
Awm Investment Company, Inc. · Reduced
Change −462K Date Q1 2026
Awm Investment Company, Inc. Reduced· Q1 2026 −462K Q1 2026
Two Sigma Investments, LP · Added
Change +304K Δ Own +501.0% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +304K +501.0% Q1 2026
Ameriprise Financial Inc · Reduced
Change −176K Date Q1 2026
Ameriprise Financial Inc Reduced· Q1 2026 −176K Q1 2026
Cannell Capital LLC · Reduced
Change −135K Date Q1 2026
Cannell Capital LLC Reduced· Q1 2026 −135K Q1 2026
Phocas Financial Corp. · Added
Change +119K Date Q1 2026
Phocas Financial Corp. Added· Q1 2026 +119K Q1 2026
Marshall Wace, LLP · New
Change +114K Date Q1 2026
Marshall Wace, LLP New· Q1 2026 +114K Q1 2026
Millennium Management LLC · Added
Change +113K Date Q1 2026
Millennium Management LLC Added· Q1 2026 +113K Q1 2026
Mill Road Capital Management LLC · Exited
Change −109K Δ Own −100.0% Date Q1 2026
Mill Road Capital Management LLC Exited· Q1 2026 −109K −100.0% Q1 2026
Citadel Advisors LLC Added· Q1 2026 +107K +126.9% Q1 2026
Lpl Financial LLC · Reduced
Change −99K Date Q1 2026
Lpl Financial LLC Reduced· Q1 2026 −99K Q1 2026
Morgan Stanley · Added
Change +88K Date Q1 2026
Morgan Stanley Added· Q1 2026 +88K Q1 2026
Aegis Financial Corp · Reduced
Change −84K Date Q1 2026
Aegis Financial Corp Reduced· Q1 2026 −84K Q1 2026
Jane Street Group, LLC · New
Change +79K Date Q1 2026
Jane Street Group, LLC New· Q1 2026 +79K Q1 2026
Qube Research & Technologies Ltd · Added
Change +78K Date Q1 2026
Qube Research & Technologies Ltd Added· Q1 2026 +78K Q1 2026
Prudential Financial Inc · Added
Change +74K Date Q1 2026
Prudential Financial Inc Added· Q1 2026 +74K Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 132

Famous investor activity in Natural Gas Services Group, Inc. (NGS)

Natural Gas Services Group, Inc. (NGS) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Tringali Donald J. · Director Grant (A) 5K
Owned 5K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Tringali Donald J. Director Grant (A) 5K 5K Jun 10, 2026 Jun 11, 2026
Jenvey Nigel · Director Grant (A) 4K
Owned 4K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Jenvey Nigel Director Grant (A) 4K 4K Jun 10, 2026 Jun 11, 2026
Holley Jean K. · Director Grant (A) 3K
Owned 3K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Holley Jean K. Director Grant (A) 3K 3K Jun 10, 2026 Jun 11, 2026
Hodges Georganne · Director Grant (A) 3K
Owned 3K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Hodges Georganne Director Grant (A) 3K 3K Jun 10, 2026 Jun 11, 2026
Gallegos John A. Jr · Director Grant (A) 3K
Owned 3K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Gallegos John A. Jr Director Grant (A) 3K 3K Jun 10, 2026 Jun 11, 2026
Jackson John Earl · Director Grant (A) 3K
Owned 3K Trade date Jun 10, 2026 Filed date Jun 11, 2026
Jackson John Earl Director Grant (A) 3K 3K Jun 10, 2026 Jun 11, 2026
Taylor Stephen Charles · Director Grant (A) $14K
Price $42.42 Qty 334 Owned 95K Trade date Jun 8, 2026 Filed date Jun 9, 2026
Taylor Stephen Charles Director Grant (A) $42.42 334 $14K 95K Jun 8, 2026 Jun 9, 2026
Tringali Donald J. · Director Grant (A) $2K
Price $42.42 Qty 49 Owned 18K Trade date Jun 8, 2026 Filed date Jun 9, 2026
Tringali Donald J. Director Grant (A) $42.42 49 $2K 18K Jun 8, 2026 Jun 9, 2026
Hodges Georganne · Director Other Form 4 events -$89K
Price $39.87 Qty -2K Owned 11K Trade date Jun 5, 2026 Filed date Jun 8, 2026
Hodges Georganne Director Other Form 4 events $39.87 -2K -$89K 11K Jun 5, 2026 Jun 8, 2026
Hodges Georganne · Director Exercise or conversion (M/X/C) -4K
Owned 0 Trade date Jun 5, 2026 Filed date Jun 8, 2026
Hodges Georganne Director Exercise or conversion (M/X/C) -4K 0 Jun 5, 2026 Jun 8, 2026
Hodges Georganne · Director Grant (A) 4K
Owned 13K Trade date Jun 5, 2026 Filed date Jun 8, 2026
Hodges Georganne Director Grant (A) 4K 13K Jun 5, 2026 Jun 8, 2026
Taylor Stephen Charles · Director Other Form 4 events -$89K
Price $39.87 Qty -2K Owned 198K Trade date Jun 5, 2026 Filed date Jun 8, 2026
Taylor Stephen Charles Director Other Form 4 events $39.87 -2K -$89K 198K Jun 5, 2026 Jun 8, 2026
Taylor Stephen Charles · Director Exercise or conversion (M/X/C) -4K
Owned 0 Trade date Jun 5, 2026 Filed date Jun 8, 2026
Taylor Stephen Charles Director Exercise or conversion (M/X/C) -4K 0 Jun 5, 2026 Jun 8, 2026
Taylor Stephen Charles · Director Grant (A) 4K
Owned 200K Trade date Jun 5, 2026 Filed date Jun 8, 2026
Taylor Stephen Charles Director Grant (A) 4K 200K Jun 5, 2026 Jun 8, 2026
Tringali Donald J. · Director Exercise or conversion (M/X/C) -4K
Owned 0 Trade date Jun 5, 2026 Filed date Jun 8, 2026
Tringali Donald J. Director Exercise or conversion (M/X/C) -4K 0 Jun 5, 2026 Jun 8, 2026
15 of 75
15 of 75 Sign in to continue to older insider transactions.

Natural Gas Services Group, Inc. (NGS) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Hoak Public Equities, LP 1.1M
% of shares outstanding 9.3% Filing date Dec 9, 2022
Hoak Public Equities, LP 1.1M 9.3% Dec 9, 2022
Blackrock, Inc. 847K
% of shares outstanding 6.8% Filing date Nov 8, 2024
Blackrock, Inc. 847K 6.8% Nov 8, 2024
Mill Road Capital Iii, L.P. 793K
% of shares outstanding 6.4% Filing date Dec 13, 2024
Mill Road Capital Iii, L.P. 793K 6.4% Dec 13, 2024
Awm Investment Company, Inc. 215K
% of shares outstanding 1.7% Filing date May 4, 2026
Awm Investment Company, Inc. 215K 1.7% May 4, 2026
Franklin Mutual Advisers, LLC 0
% of shares outstanding 0.0% Filing date Apr 28, 2026
Franklin Mutual Advisers, LLC 0 0.0% Apr 28, 2026
5 of 5

Natural Gas Services Group, Inc. (NGS) ownership FAQ

Who owns NGS?

132 reporting institutions disclosed NGS position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.