Planned sale of 19,656 KOS (NYSE: KOS) shares under Rule 144

Rhea-AI Filing Summary

KOS filed a Rule 144 notice covering a planned sale of 19,656 shares of its common stock through Fidelity Brokerage Services on the NYSE, with an approximate sale date of February 3, 2026 and an aggregate market value of 27,060.41.

The 19,656 shares were acquired from the issuer on February 2, 2026 through restricted stock vesting as compensation. The notice states that 478,326,954 shares of the issuer’s common stock were outstanding, providing a baseline for the company’s total equity.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	19656	27060.41	478326954	02/03/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/02/2026	Restricted Stock Vesting	Issuer			19656	02/02/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Rule 144 filing for KOS disclose?

The Rule 144 filing for KOS discloses a planned sale of 19,656 common shares on the NYSE. The shares were recently acquired through restricted stock vesting as compensation, and the filing lists their aggregate market value and the executing broker, Fidelity Brokerage Services.

How many KOS shares are planned to be sold under this Rule 144 notice?

The notice covers a planned sale of 19,656 KOS common shares. These shares were acquired on February 2, 2026 via restricted stock vesting, and are scheduled to be sold on the NYSE through Fidelity Brokerage Services as disclosed in the filing.

What is the aggregate market value of the KOS shares in this Rule 144 filing?

The filing reports an aggregate market value of 27,060.41 for the 19,656 KOS common shares. This figure is based on market pricing at the time of the notice and helps indicate the dollar size of the proposed Rule 144 sale.

When were the KOS shares acquired and how were they obtained?

The 19,656 KOS common shares were acquired on February 2, 2026 through restricted stock vesting from the issuer as compensation. The filing identifies the issuer as the source of the shares and classifies the consideration as compensation rather than a cash purchase.

On which exchange and through which broker will the KOS shares be sold?

The Rule 144 notice states the KOS common shares are to be sold on the NYSE through Fidelity Brokerage Services LLC, located in Smithfield, Rhode Island. This identifies both the trading venue and the intermediary responsible for executing the planned transactions.

How many KOS common shares were outstanding according to the filing?

The filing states that 478,326,954 KOS common shares were outstanding. This number provides a baseline context for the company’s total equity relative to the 19,656 shares covered by the Rule 144 notice, which represent only a small portion of the outstanding stock.