Welcome to our dedicated page for Kosmos Energy SEC filings (Ticker: KOS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Whether you’re comparing Jubilee output across quarters or assessing cash flows for Tortue Phase 1, our AI-powered summaries, expert commentary, and real-time feeds turn regulatory complexity into actionable clarity—without downloading a single spreadsheet.
Kosmos Energy Ltd. has launched a cash tender offer for up to $250,000,000 aggregate principal amount of its outstanding 7.750% Senior Notes due 2027, out of a total of $350,000,000 outstanding. The offer runs until 5:00 p.m. New York City time on February 9, 2026, with an early tender deadline at 5:00 p.m. on January 26, 2026.
Investors who tender by the early deadline and are accepted will receive total consideration of $990.00 per $1,000 principal amount, including a $50.00 early tender payment. Those tendering after the early deadline but before expiration receive $940.00 per $1,000. Accrued interest will also be paid, and tenders may be subject to proration if demand exceeds the cap.
The tender is conditioned on a new $350,000,000 senior secured bond offering due 2031, whose net proceeds, once released from escrow, are intended to fund the tender, repay certain reserve-based lending borrowings, and support general corporate purposes. Kosmos states it is using this combination to manage the maturity profile of its debt and may further redeem or repurchase notes so that no more than $100,000,000 of the 2027 notes remain outstanding.
Kosmos Energy Ltd. plans to redeem all of its outstanding 7.125% senior notes due 2026. The company will issue a conditional notice of redemption, with redemption expected to occur on January 13, 2026. The redemption is expected to be funded by a draw under Kosmos Energy’s Senior Secured Term Loan Credit Agreement dated September 24, 2025. The company also clarifies that this report does not itself constitute a notice of redemption for the notes.
An insider has filed a Rule 144 notice to sell 1430084 common shares of the KOS issuer. The shares are expected to be sold on or about 12/18/2025 through broker Coutts & Co on the NYSE, with an aggregate market value indicated as 1420931.00. The filing states that 478326954 shares of the same class were outstanding.
The securities to be sold were acquired on 12/18/2025 through restricted stock vesting from the issuer as compensation, rather than a cash purchase. By signing the notice, the seller represents that they are not aware of any undisclosed material adverse information about the issuer’s current or prospective operations.
A holder of KOS common stock filed a notice of intent to sell 7,787 shares through broker Coutts & Co on the NYSE, with an aggregate market value of $7,163.00. These shares are part of a much larger base of 478,326,954 common shares outstanding.
The shares to be sold were acquired on 12/17/2025 from the issuer via restricted stock vesting as compensation, with payment also dated 12/17/2025. The seller represents that they are not aware of any undisclosed material adverse information about the issuer’s current or prospective operations.
Grantham, Mayo, Van Otterloo & Co. LLC (GMO) filed Amendment No. 3 to Schedule 13G, reporting a passive stake in Kosmos Energy Ltd. (KOS).
GMO beneficially owns 34,780,967 shares of Kosmos Energy common stock, representing 7.27% of the class as of the event date 09/30/2025. GMO reports sole voting power and sole dispositive power over 34,780,967 shares, with no shared voting or dispositive power.
The filer certified the securities were acquired and are held in the ordinary course of business and not to change or influence control.
Kosmos Energy (KOS) reported a Q3 2025 net loss of $124.3 million on oil and gas revenue of $311.0 million. Year‑to‑date, revenue was $995.2 million with a net loss of $322.6 million. Operating cash flow fell to $98.7 million for the nine months, reflecting lower realized prices, delayed Jubilee cargoes, and pre‑production and early ramp‑up costs tied to Greater Tortue Ahmeyim (GTA) Phase 1. Cash and cash equivalents were $64.0 million, with total debt principal of $3.03 billion, including $1.125 billion drawn on the Facility and $225 million undrawn availability.
In July, lenders amended the Facility’s debt cover ratio to a maximum of 4.0x for September 2025 and 4.25x for March 2026, reverting to 3.50x thereafter. Management notes circumstances under which the company may not meet the covenant at the March and September 2026 assessment dates and outlined a mitigation plan to reduce TEN operating and corporate costs and potentially monetize hedges. In October, Kosmos funded a $150 million Gulf of America secured term loan and redeemed $150 million of 7.125% notes. Shares outstanding were 478,326,954 as of October 30, 2025.
Kosmos Energy Ltd. furnished a Form 8-K to announce that it issued a news release with results for the fiscal quarter ended September 30, 2025.
The news release is provided as Exhibit 99.1 and is incorporated by reference. The company states the information is being furnished and is not deemed “filed” for purposes of Section 18 of the Exchange Act.
Kosmos Energy Ltd. filed a Form 8-K reporting a conditional notice of partial redemption for $150,000,000 principal amount of its 7.125% senior notes due 2026. The notice was issued on September 25, 2025 and the company states that redemption of the specified notes will occur on October 6, 2025. The filing references Item 1.01 in relation to Item 2.03 but does not include additional details about funding source, remaining outstanding principal, or the specific terms of the redemption beyond the principal amount, coupon and redemption date.
Kosmos Energy Ltd. is the subject of a joint Schedule 13G filing by American Century Investment Management, Inc., American Century Companies, Inc. and Stowers Institute for Medical Research reporting beneficial ownership of 33,411,046 shares, representing 7.0% of the outstanding common stock. The filing shows sole voting power for 30,486,885 shares and sole dispositive power for 33,411,046 shares, indicating the filers exercise direct control over voting and disposition of the reported shares.
The filing notes that ACIM acts as an investment adviser and is a wholly owned subsidiary of ACC controlled by Stowers Institute, and includes a certification that the securities are held in the ordinary course of business and not for the purpose of changing or influencing control. The parties have consented to a joint filing for these holdings.
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