BlackRock reports 8.1% stake in Kosmos Energy

BlackRock, Inc. filed Amendment No. 11 to report its beneficial ownership of common stock of Kosmos Energy Ltd..

Rhea-AI Filing Summary

BlackRock, Inc. filed Amendment No. 11 to report its beneficial ownership of common stock of Kosmos Energy Ltd.. BlackRock reports beneficial ownership of 47,915,849 Kosmos Energy shares, representing 8.1% of the outstanding common stock.

The firm has sole voting power over 47,187,140 shares and sole dispositive power over all 47,915,849 shares, with no shared voting or dispositive power. Various underlying clients have rights to dividends or sale proceeds, but no single person has more than five percent of the total outstanding common shares.

Key Figures

Beneficially owned shares: 47,915,849 shares Percent of class: 8.1% Sole voting power: 47,187,140 shares +3 more

6 metrics

Beneficially owned shares 47,915,849 shares Common stock of Kosmos Energy Ltd. beneficially owned by BlackRock, Inc.

Percent of class 8.1% Portion of Kosmos Energy common stock class beneficially owned by BlackRock, Inc.

Sole voting power 47,187,140 shares Shares for which BlackRock has sole power to vote or direct the vote

Shared voting power 0 shares Shares for which BlackRock has shared power to vote or direct the vote

Sole dispositive power 47,915,849 shares Shares for which BlackRock has sole power to dispose or direct disposition

Signature date 07/29/2026 Date the Schedule 13G/A was signed by Spencer Fleming, Managing Director

Key Terms

beneficially owned, sole power to vote or to direct the vote, sole power to dispose or to direct the disposition, Investment Company Act of 1940, +1 more

5 terms

beneficially owned financial

"reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole power to vote or to direct the vote financial

"Number of shares as to which the person has | (i) Sole power to vote or to direct the vote"

sole power to dispose or to direct the disposition financial

"(iii) Sole power to dispose or to direct the disposition of: 47915849"

Investment Company Act of 1940 regulatory

"shareholders of an investment company registered under the Investment Company Act of 1940 or"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

parent holding company financial

"Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of Kosmos Energy (KOS) shares does BlackRock currently report owning?

BlackRock reports beneficial ownership of 8.1% of Kosmos Energy Ltd.’s common stock. This corresponds to 47,915,849 shares as disclosed under Item 4 of the ownership section.

How many Kosmos Energy (KOS) shares does BlackRock have voting power over?

BlackRock has sole power to vote or direct the vote for 47,187,140 Kosmos Energy shares. It reports no shared voting power over any additional shares in this filing.

How many Kosmos Energy (KOS) shares does BlackRock have dispositive power over?

BlackRock reports sole dispositive power over 47,915,849 Kosmos Energy common shares. It indicates no shared dispositive power, meaning all reported shares can be disposed of at its direction.

Do other investors share in the economic rights to BlackRock’s Kosmos Energy (KOS) holdings?

Yes. Various persons have rights to receive dividends or sale proceeds from the Kosmos Energy shares. However, no single person’s interest exceeds five percent of Kosmos Energy’s total outstanding common shares.

Who signed BlackRock’s Schedule 13G/A for Kosmos Energy (KOS) and when?

The filing was signed by Spencer Fleming, Managing Director at BlackRock, Inc. The signature date reported is 07/29/2026, as shown in the signature block.

Which BlackRock entities are covered by this Kosmos Energy (KOS) Schedule 13G/A?

The filing covers securities beneficially owned or deemed beneficially owned by certain Reporting Business Units of BlackRock, Inc. Other BlackRock business units with disaggregated ownership are not included under this report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/29/2026 - 03:24 PM Accepted by SEC EDGAR 07/29/2026 - 03:19 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 11)

KOSMOS ENERGY LTD

(Name of Issuer)

Common Stock

(Title of Class of Securities)

500688106

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 500688106

1

Names of Reporting Persons

BlackRock, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 47,187,140.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 47,915,849.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

47,915,849.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: KOSMOS ENERGY LTD
(b)	Address of issuer's principal executive offices: 8176 PARK LANE DALLAS TX 75231
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 500688106
Item 4.	Ownership
(a)	Amount beneficially owned: 47915849
(b)	Percent of class: 8.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 47187140
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 47915849
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of KOSMOS ENERGY LTD. No one person's interest in the common stock of KOSMOS ENERGY LTD is more than five percent of the total outstanding common shares.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	07/29/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7