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Kosmos Energy Ltd. (KOS)

Kosmos Energy Ltd. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Kosmos Energy Ltd. (KOS) is a Oil & Gas Exploration & Production company based in US with a market capitalization of $1.3B. Revenue declined 22.5% year-over-year and free cash flow was negative at -$180.4M. This page tracks KOS's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 243 employees · IPO May 11, 2011

Valuation

Valuation & price

$3.23 · as of May 17, 2026 · -1.4% vs 52w high

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P/E ratio

Latest-FY diluted EPS

2.51

P/B ratio

Market cap ÷ book equity

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Dividend yield

Price — last 12 months

$3.27$2.07$0.88Jul 25Dec 25Jul 26Jul 7, 25$2.01Jul 9, 25$2.11Jul 11, 25$2.17Jul 15, 25$1.98Jul 17, 25$2.05Jul 21, 25$1.96Jul 23, 25$2.13Jul 25, 25$2.22Jul 29, 25$2.32Jul 31, 25$2.15Aug 4, 25$1.90Aug 6, 25$1.84Aug 11, 25$1.70Aug 13, 25$1.76Aug 15, 25$1.70Aug 19, 25$1.65Aug 21, 25$1.74Aug 25, 25$1.88Aug 27, 25$1.83Aug 29, 25$1.79Sep 3, 25$1.68Sep 5, 25$1.64Sep 9, 25$1.62Sep 11, 25$1.73Sep 16, 25$1.82Sep 18, 25$1.75Sep 22, 25$1.68Sep 24, 25$1.78Sep 26, 25$1.79Sep 30, 25$1.66Oct 2, 25$1.67Oct 6, 25$1.87Oct 8, 25$1.75Oct 10, 25$1.57Oct 14, 25$1.60Oct 16, 25$1.46Oct 21, 25$1.44Oct 23, 25$1.61Oct 27, 25$1.57Oct 29, 25$1.55Oct 31, 25$1.57Nov 4, 25$1.48Nov 6, 25$1.41Nov 10, 25$1.51Nov 12, 25$1.45Nov 14, 25$1.42Nov 18, 25$1.37Nov 20, 25$1.31Nov 25, 25$1.09Nov 28, 25$1.12Dec 2, 25$1.07Dec 4, 25$1.07Dec 8, 25$1.09Dec 10, 25$1.03Dec 12, 25$1.02Dec 16, 25$0.97Dec 18, 25$0.91Dec 22, 25$0.96Dec 24, 25$0.90Dec 29, 25$0.88Jan 2, 26$0.89Jan 6, 26$1.00Jan 8, 26$0.91Jan 12, 26$1.03Jan 14, 26$1.27Jan 16, 26$1.27Jan 21, 26$1.29Jan 23, 26$1.30Jan 27, 26$1.38Jan 29, 26$1.69Feb 2, 26$1.36Feb 4, 26$1.53Feb 9, 26$1.55Feb 11, 26$1.82Feb 13, 26$1.68Feb 18, 26$1.70Feb 20, 26$2.16Feb 24, 26$2.23Feb 26, 26$2.20Mar 2, 26$2.40Mar 4, 26$2.54Mar 6, 26$2.57Mar 10, 26$2.41Mar 12, 26$2.28Mar 17, 26$2.40Mar 19, 26$2.98Mar 23, 26$2.69Mar 25, 26$2.66Mar 27, 26$2.91Mar 31, 26$2.78Apr 2, 26$2.92Apr 7, 26$3.03Apr 9, 26$2.55Apr 13, 26$2.62Apr 15, 26$2.58Apr 17, 26$2.48Apr 22, 26$2.85Apr 24, 26$2.81Apr 28, 26$2.96Apr 30, 26$3.08May 4, 26$3.27May 6, 26$2.89May 8, 26$2.75May 12, 26$3.10May 14, 26$2.93May 18, 26$3.21May 20, 26$3.01May 22, 26$3.03May 28, 26$2.74Jun 1, 26$2.91Jun 3, 26$2.99Jun 5, 26$2.81Jun 9, 26$2.79Jun 11, 26$2.89Jun 15, 26$2.54Jun 17, 26$2.50Jun 22, 26$2.46Jun 24, 26$2.12Jun 26, 26$2.18Jul 2, 26$2.07
$0.8752-week range$3.27
Loading valuation history…

Fundamentals

Key fundamentals

$1.3B

Market cap

-22.5%

Revenue growth (YoY)

-14.8%

Gross margin

-$180.4M

Free cash flow (USD)

$3B

Net debt

1.6%

Share dilution

1/5

Graham criteria passed

Defensive-investor screen

Energy

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$310.4MFY 2017$578.1MFY 2018$886.7MFY 2019$1.5BFY 2020$804.0MFY 2021$1.3BFY 2022$2.2BFY 2023$1.7BFY 2024$1.7BFY 2025$1.3B
$310.4M$1.3B

Free cash flow by year

2016 → 2025

FY 2016$-485.9MFY 2017$93.3MFY 2018$-923.0MFY 2019$276.1MFY 2020$-183.4MFY 2021$-563.7MFY 2022$321.1MFY 2023$-167.4MFY 2024$-255.4MFY 2025$-180.4M
-$485.9M-$180.4M

Gross margin by year

2021 → 2025

FY 202139.0%FY 202259.6%FY 202350.9%FY 202441.1%FY 2025-14.8%
39.0%-14.8%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

3

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 5, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventAsset DispositionJun 22, 2026Filing
  • Insider sellInsider Sell $119KFranklin Roy A. · Director · $118.7KMay 29, 2026Filing
  • Insider sellInsider Sell $105KSterin Steven · Director · $105.5KMay 29, 2026Filing
  • Insider sellInsider Sell $119KGrant John Douglas Kelso · Director · $118.7KMay 29, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 28, 2026Filing
  • 8-K eventEarnings ReleaseMay 5, 2026Filing
  • Quarterly report10-Q FiledMay 5, 2026Filing

Questions

Frequently asked questions

What is Kosmos Energy Ltd.'s market cap?

Kosmos Energy Ltd. (KOS) has a market capitalization of $1.3B.

What is KOS's P/E ratio?

A meaningful P/E ratio is not available for KOS — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is KOS's price-to-book (P/B) ratio?

KOS trades at 2.51 times book value per share.

Are insiders buying KOS stock?

SEC Form 4 filings show no open-market insider buys at Kosmos Energy Ltd. in the last 90 days (3 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.