Kosmos Energy (NYSE: KOS) VP Glass sells stock to cover RSU taxes

Rhea-AI Filing Summary

Kosmos Energy Ltd. VP & Chief Accounting Officer Ronald W. Glass reported equity award vesting and related share sales. On February 3, 2026, he acquired 7,732 shares of common stock at $0 upon settlement of restricted share units granted under the company’s Long Term Incentive Plan, which vested based on performance.

That same day, Glass sold 19,285 shares at a weighted average price of $1.37 per share to cover tax withholding from the vesting. On February 4, 2026, he sold an additional 3,313 shares at a weighted average price of $1.42 per share. Following these transactions, he directly owned 339,632 shares of Kosmos Energy common stock.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Glass Ronald W.

(Last) (First) (Middle)

8176 PARK LANE, SUITE 500

(Street)

DALLAS TX 75231

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Kosmos Energy Ltd. [ KOS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP & Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/03/2026		A		7,732(1)	A	$0	362,230	D
Common Stock	02/03/2026		S		19,285(2)	D	$1.37(3)	342,945	D
Common Stock	02/04/2026		S		3,313(2)	D	$1.42(4)	339,632	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares issued on settlement of restricted share units granted to the reporting person on January 31, 2023 under the Issuer's Long Term Incentive Plan (the "Plan") that vested based on the level of achievement of the applicable performance condition.

2. These shares were sold to satisfy the tax withholding requirement arising from the vesting of restricted share units granted to the reporting person under the Plan.

3. The price reported above reflects the weighted average sales price. Sales of shares took place at actual prices ranging from $1.34 to $1.405 per share.

4. The price reported above reflects the weighted average sales price. Sales of shares took place at actual prices ranging from $1.395 to $1.465 per share.

Remarks:

	By: /s/ Josh R. Marion, as Attorney-in-fact	02/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Kosmos Energy (KOS) VP Ronald W. Glass report?

Ronald W. Glass reported acquiring 7,732 Kosmos Energy common shares from vesting restricted share units, then selling 19,285 shares on February 3, 2026 and 3,313 shares on February 4, 2026. After these transactions, he directly held 339,632 common shares.

Why did Ronald W. Glass sell Kosmos Energy (KOS) shares in February 2026?

The filing states that the reported share sales were made to satisfy tax withholding obligations arising from the vesting of restricted share units under Kosmos Energy’s Long Term Incentive Plan. These sales helped cover the income tax due when his performance-based equity awards settled.

At what prices did Ronald W. Glass sell Kosmos Energy (KOS) stock?

On February 3, 2026, Glass sold 19,285 Kosmos Energy shares at a weighted average price of $1.37 per share, with individual trades between $1.34 and $1.405. On February 4, 2026, he sold 3,313 shares at a $1.42 weighted average, with trades from $1.395 to $1.465.

How many Kosmos Energy (KOS) shares does Ronald W. Glass own after the Form 4 transactions?

After the reported February 2026 transactions, Ronald W. Glass directly owned 339,632 shares of Kosmos Energy common stock. This figure reflects the vesting-related share issuance, followed by the tax-withholding sales reported for February 3 and February 4, 2026 in the Form 4.

What was the source of the 7,732 Kosmos Energy (KOS) shares acquired by Ronald W. Glass?

The 7,732 shares acquired on February 3, 2026 came from settlement of restricted share units granted on January 31, 2023 under Kosmos Energy’s Long Term Incentive Plan. These RSUs vested based on the level of achievement of a specified performance condition.

What role does Ronald W. Glass hold at Kosmos Energy (KOS) according to the Form 4?

According to the Form 4, Ronald W. Glass serves as Kosmos Energy’s Vice President and Chief Accounting Officer. The filing identifies him as an officer of the company, and the reported transactions involve his beneficial ownership of Kosmos Energy common stock held directly.