Shareholder plans Rule 144 sale of 103,554 KOS (NYSE: KOS) common shares

Rhea-AI Filing Summary

A shareholder of KOS has filed a notice of proposed sale of restricted stock under Rule 144. The filing covers the planned sale of 103,554 shares of common stock, with an indicated aggregate market value of $142,562.79, through Fidelity Brokerage Services LLC on the NYSE on or about 02/03/2026.

These shares were acquired from the issuer on 02/02/2026 via restricted stock vesting as compensation, and the purchase price was paid in the form of compensation rather than cash. The filing also states that the seller represents they do not know of any undisclosed material adverse information about the issuer.

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

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	103554	142562.79	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			103554	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 Form 144 filing for KOS disclose about planned share sales?

The filing discloses a planned sale of 103,554 common shares of KOS with an aggregate market value of $142,562.79. The sale is to be executed through Fidelity Brokerage Services LLC on the NYSE, with an approximate sale date of 02/03/2026.

How were the KOS shares in this Form 144 acquired by the seller?

The shares were acquired on 02/02/2026 through restricted stock vesting from the issuer. The nature of payment is listed as compensation, meaning the shares were received as part of a compensation arrangement rather than purchased for cash.

What class of securities is being sold in the KOS Form 144 filing?

The filing covers common stock of KOS. It specifies 103,554 common shares to be sold, with an aggregate market value of $142,562.79, to be sold on the NYSE through Fidelity Brokerage Services LLC as the broker.

What market and broker are involved in the KOS Form 144 share sale?

The planned sale will be conducted on the New York Stock Exchange (NYSE) using Fidelity Brokerage Services LLC as broker. The filing lists Fidelity’s address in Smithfield, Rhode Island, and designates the securities as common stock of KOS.

What representation does the selling shareholder make in the KOS Form 144?

The selling shareholder represents they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed. The notice also warns that intentional misstatements or omissions can constitute federal criminal violations.

When are the KOS shares in this Form 144 expected to be sold?

The filing lists an approximate date of sale of 02/03/2026. This date applies to the planned sale of 103,554 common shares of KOS on the NYSE through Fidelity Brokerage Services LLC, as disclosed in the securities information section.