Massivemarkets

SEC Form 4

Kodiak Gas Services, Inc. (KGS) insider trading

In the 12 months to Oct 24, 2026, 7 KGS insiders reported open-market sales of $674.4M across 21 filings; 2 insiders bought $602.6K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$674.4M
21 filings · 7 insiders
Open-market purchases
$602.6K
2 filings
Pre-arranged sales (10b5-1)
14 of 21
$3.1M of $674.4M sold (0%)

Who traded KGS, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

KGS daily close from Oct 24, 2025 to Oct 23, 2026, between $32.95 and $76.27, last $44.31. 21 sale and 2 purchase filings by 9 insiders, marked at their filing dates. EQT Fund Management S.a r.l., 10% owner: sold $335.5M across 1 filing, first filed Dec 3, 2025, last Dec 3, 2025. Frontier Topco GP, LLC, 10% owner: sold $333.2M across 1 filing, first filed Nov 14, 2025, last Nov 14, 2025. Cory Anne Roclawski, EVP & CHRO: sold $2.1M across 3 filings, first filed Mar 16, 2026, last Jul 8, 2026. Pedro R. Buhigas, Chief Information Officer: sold $1.3M across 3 filings, first filed Mar 20, 2026, last Sep 17, 2026. Ewan William Hamilton, EVP & Chief Accounting Officer: sold $1.1M across 5 filings, first filed Mar 16, 2026, last Sep 15, 2026. Robert Michael McKee, President & CEO: sold $874.5K across 3 filings, first filed Aug 20, 2026, last Oct 6, 2026. Randall J. Hogan, Director: bought $328.9K across 1 filing, first filed Mar 16, 2026, last Mar 16, 2026. William Chad Lenamon, Executive Vice President & COO: sold $314.0K across 5 filings, first filed Jun 11, 2026, last Oct 13, 2026. Alexander Newsom Darden, Director: bought $273.8K across 1 filing, first filed Mar 16, 2026, last Mar 16, 2026.

Largest mark · tap a row for others

EQT Fund Management S.a r.l. · 10% owner

Sale $335,539,634

9,762,573 shares at $34.37 avg

Filed Dec 3, 2025 · traded Dec 1

Close on filing date $35.26

KGS daily closelast $44.31

EQT Fund Management S.a r.l. · 10% owner

$335.5M sold

Frontier Topco GP, LLC · 10% owner

$333.2M sold

Cory Anne Roclawski · EVP & CHRO

$2.1M sold

Pedro R. Buhigas · Chief Information Officer

$1.3M sold

Ewan William Hamilton · EVP & Chief Accounting Officer

$1.1M sold

Robert Michael McKee · President & CEO

$874.5K sold

Randall J. Hogan · Director

$328.9K bought

William Chad Lenamon · Executive Vice President & COO

$314.0K sold

Alexander Newsom Darden · Director

$273.8K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Kodiak Gas Services, Inc.'s CEO sold stock?

Yes. Robert Michael McKee (CEO) sold 14,673 shares ($874.5K) between Aug 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

23 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
EQT Fund Management S.a r.l.10% owner$335.5M—1—
Frontier Topco GP, LLC10% owner$333.2M—1—
Cory Anne RoclawskiEVP & CHRO$2.1M—314% of sales
Pedro R. BuhigasChief Information Officer$1.3M—3100% of sales
Ewan William HamiltonEVP & Chief Accounting Officer$1.1M—534% of sales
Robert Michael McKeePresident & CEO$874.5K—3100% of sales
Randall J. HoganDirector—$328.9K1—
William Chad LenamonExecutive Vice President & COO$314.0K—5100% of sales
Alexander Newsom DardenDirector—$273.8K1—
Other insider activity (not market trades) · 42 records
  • Tax withholding18 records
  • Grants and awards23 records
  • Employee stock purchase plan1 record

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for KGS every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Counted once
When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.