Companies: 10,795·Total market cap: $144.5T
Kosmos Energy Ltd.

Kosmos Energy Ltd.

KOSNYSEEnergy● Active
$2.91
+$0.10(+3.56%)
Market Cap$1.4B
P/E Ratio—
52W High$3.34
52W Low$0.84
SEC Filings

Kosmos Energy Ltd. (KOS) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001509991 · KOS · NYSE · as of Jun 8, 2026

Filing snapshot

1,000+
Total Filings
4
Latest Form
2026-05-29
Most Recent
2011
Filing Since
FinancialsEarningsView All on EDGAR

Source: SEC EDGAR (data.sec.gov) · CIK 0001509991 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-02
Fiscal Year End
Mar 2, 2026
Accession No.
0001509991-26-000017
Primary Document
kos-20251231.htm
View on SEC EDGARDownload PDFFiling Index
Source: data.sec.gov · CIK 0001509991 · Accession 0001509991-26-000017

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-05
View 10-Q on SEC
8-KCurrent Report
8-K
2026-05-28Material Event
View 8-K on SEC
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

View Insider Trades Tab

SEC Filing History

Hide Form 4 / 144
S-8Employee Stock Plan Registration
FORM S-8
2026-05-29
View
8-KCurrent Report
8-K
2026-05-28
View
10-QQuarterly Report
10-Q
2026-05-05
View
8-KCurrent Report
8-K
2026-05-05
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-05-01
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-04-24
View
ARSARS
ARS
2026-04-16
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-16
View
DEF 14AProxy Statement
DEF 14A
2026-04-16
View
8-KCurrent Report
FORM 8-K
2026-03-12
View
424B5424B5
424B5
2026-03-12
View
424B3424B3
424B3
2026-03-10
View
10-KAnnual Report
10-K
2026-03-02
View
8-KCurrent Report
8-K
2026-03-02
View
8-KCurrent Report
8-K
2026-02-25
View
Showing 1–15 of 462 filingsForm 4 / 144 hidden· 1000 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001509991  |  Exchange: NYSE · Energy

Kosmos Energy Ltd. (NYSE: KOS) has submitted 1,000+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2011. As a Energy sector company with CIK 0001509991, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Kosmos Energy Ltd.'s most comprehensive regulatory disclosure. The most recent Kosmos Energy Ltd. 10-K was filed on 2026-03-02 for fiscal year ending 2026. Historical KOS 10-K annual reports are available from 2012 through 2026.

Investors researching Kosmos Energy Ltd. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08
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→ KOS Financials→ KOS Earnings→ KOS Insider Trades

Frequently Asked Questions

KOS SEC Filings · 8 questions

Kosmos Energy Ltd. (KOS) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,000+ filings and access original documents at no cost. Kosmos Energy Ltd.'s CIK is 0001509991.

KOS SEC filingsKosmos Energy Ltd. SEC documentsfind KOS 10-K