NGS

Natural Gas Services Group Cross-source read$35.37 1.34%
EnergyCUSIP 63886Q109· EOD Sep 18, 2026

Among active 13F managers last quarter, 13 opened and 20 added, while 20 reduced; the largest holder to move was Aegis Financial Corp (−0.4%). No open-market insider trades in the last 180 days.

Tracked 13F holders
141
54 in Q2 2026 filings
13F value (tracked)
$417.1M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
33 adding · 20 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$35.37 1.34%5Y +267.7%
$6.56$16.61$26.66$36.71$46.7620212022202320242025202631047666476106692101136815513918102131511151522516211921222181123523243212022
Hover for who · click for detailEnd-of-day closing prices52w $25.68 – $44.13

Who owns NGS?

141 tracked 13F filers · ranked by shares held

141 tracked 13F filers disclose a position in NGS as of the latest SEC 13F filings, a combined $417.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1BlackRock, Inc.962K
$41.5M
+22%
Added · +172K sh
Q2 2026
2Dimensional Fund Advisors LP844K
$31.8M
−1.4%
Reduced · −12K sh
Q1 2026
3Aegis Financial Corp585K
$25.2M
−0.4%
Reduced · −2K sh
Q2 2026
4Vanguard Capital Management LLC513K
$22.1M
+0.4%
Added · +2K sh
Q2 2026
5Weber Capital Management LLC480K
$20.7M
−0.4%
Reduced · −2K sh
Q2 2026
6Two Sigma Investments, LP365K
$13.8M
+501%
Added · +304K sh
Q1 2026
7First Eagle Investment Management, LLC348K
$15.0M
+21%
Added · +60K sh
Q2 2026
8American Century Companies Inc339K
$12.8M
+22%
Added · +61K sh
Q1 2026
9Ameriprise Financial Inc338K
$12.7M
−34%
Reduced · −176K sh
Q1 2026
10Geode Capital Management, LLC320K
$13.8M
+12%
Added · +35K sh
Q2 2026
11State Street Corp303K
$13.1M
+52%
Added · +104K sh
Q2 2026
12Pacific Ridge Capital Partners, LLC303K
$13.1M
−0.8%
Reduced · −2K sh
Q2 2026
13Morgan Stanley263K
$9.9M
+51%
Added · +88K sh
Q1 2026
14Renaissance Technologies LLC238K
$9.0M
−7.2%
Reduced · −18K sh
Q1 2026
15Millennium Management LLC213K
$8.0M
+114%
Added · +113K sh
Q1 2026
16Bridgeway Capital Management, LLC199K
$8.6M
−6.8%
Reduced · −14K sh
Q2 2026
17AWM Investment Company, Inc.190K
$8.2M
−12%
Reduced · −25K sh
Q2 2026
18Citadel Advisors LLC185K
$8.0M
−3.8%
Reduced · −7K sh
Q2 2026
19Qube Research & Technologies Ltd183K
$6.9M
+74%
Added · +78K sh
Q1 2026
20Russell Investments Group, Ltd.180K
$6.8M
+8.0%
Added · +13K sh
Q1 2026
21Phocas Financial Corp.154K
$6.7M
−4.9%
Reduced · −8K sh
Q2 2026
22Cannell Capital LLC122K
$5.3M
−36%
Reduced · −69K sh
Q2 2026
23Vanguard Portfolio Management LLC117K
$5.0M
+48%
Added · +38K sh
Q2 2026
24Marshall Wace, LLP114K
$4.3M
New
+114K sh
Q1 2026
25Prudential Financial Inc110K
$4.2M
+208%
Added · +74K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is NGS being bought or sold by institutions?

Last quarter, 13 funds opened a new position in NGS and 20 added to an existing one, while 20 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
13
funds took a first position
Added
20
added to an existing position
Reduced
20
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own NGS also own

CompanyCo-held byTheir position there
Microsoft CorpMSFT76 funds$135.7B
Nvidia CorpNVDA75 funds$216.9B
JPMorgan Chase & CoJPM74 funds$36.5B
Amazon.com IncAMZN73 funds$106.0B
Alphabet Inc-CL AGOOGL71 funds$100.6B
Eli Lilly & CoLLY71 funds$44.6B
Costco Wholesale CorpCOST71 funds$19.3B
Broadcom IncAVGO70 funds$92.4B
Berkshire Hathaway Inc-CL BBRK/B70 funds$19.6B
Apple IncAAPL69 funds$158.1B
Alphabet Inc-CL CGOOG69 funds$70.9B
Meta Platforms Inc-Class AMETA68 funds$56.3B

Ranked by how many of NGS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in NGS.

Insider activity (Form 4)

Full insider page →
Net · 180d
$0
0 open-market transactions
DateInsiderRoleActionSharesValue
Mar 6, 2026Taylor Stephen CharlesDirectorSell (S)30K$1.1M
Mar 5, 2026Taylor Stephen CharlesDirectorSell (S)70K$2.6M
Dec 11, 2025Taylor Stephen CharlesDirectorSell (S)10K$335K
Dec 10, 2025Taylor Stephen CharlesDirectorSell (S)10K$332K
Dec 8, 2025Holley Jean KDirectorBuy (P)
2 lots, same day
3K$100K
Dec 4, 2025Taylor Stephen CharlesDirectorSell (S)20K$642K
Nov 20, 2025Taylor Stephen CharlesDirectorSell (S)10K$314K
Nov 19, 2025Taylor Stephen CharlesDirectorSell (S)10K$303K
Nov 17, 2025Taylor Stephen CharlesDirectorSell (S)10K$310K
Nov 10, 2025Taylor Stephen CharlesDirectorSell (S)
2 lots, same day
19K$558K
Nov 7, 2025Taylor Stephen CharlesDirectorSell (S)
2 lots, same day
11K$324K
Nov 6, 2025Taylor Stephen CharlesDirectorSell (S)100$3K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
5129
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0
Sector rotation
NGS is in Energy, which smart money is rotating OUT OF
$10.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

54 tracked filers in Q2 2026 filingsstill filing
066131Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $139.4M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

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Connected entities for NGS

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Ask your agent what changed in NGS

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/NGS/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for NGS.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for NGS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.