KYMR (NASDAQ) insider 10b5-1 sales and option exercise reported

Rhea-AI Filing Summary

KYMR notice reports Rule 144 transactions in Common stock by an insider and planned issuer-related issuances. The filing lists 109,127 shares tied to an exercise of stock options on 03/23/2026 and 6,850 shares issued as Restricted Stock Units on 03/01/2026. The filing also discloses recent 10b5-1 sales: 25,758 shares on 03/11/2026 for $2,145,673.70, 3,919 shares on 03/04/2026 for $334,272.49, and 2,039 shares on 03/02/2026 for $181,321.64.

Insights

Securities Compliance Expert

Routine Rule 144 and 10b5-1 activity involving option exercise, RSU issuance, and scheduled sales.

The filing itemizes an exercise of stock options (109,127 shares) dated 03/23/2026 and an RSU issuance (6,850 shares) dated 03/01/2026. These entries describe issuer-side issuance actions rather than open-market purchases by the issuer.

Separate lines show 10b5-1 sales by the reporting person: 25,758, 3,919, and 2,039 shares with gross proceeds listed. Cash‑flow treatment and any post-transaction holdings are not stated in the excerpt.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	115977	9035768.07	81642394	03/23/2026	NASDAQ

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	03/23/2026	Exercise of Stock Options	Issuer			109127	03/23/2026	Cash
Common	03/01/2026	Restricted Stock Units	Issuer			6850	03/01/2026	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for JEREMY CHADWICK 500 North Beacon Street, 4th Floor Watertown MA 02472	Common	03/11/2026	25758	2145673.70
JEREMY CHADWICK 500 North Beacon Street, 4th Floor Watertown MA 02472	Common	03/04/2026	3919	334272.49
JEREMY CHADWICK 500 North Beacon Street, 4th Floor Watertown MA 02472	Common	03/02/2026	2039	181321.64

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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 KYMR's Form 144 disclose about recent insider sales?

The Form 144 lists 10b5-1 sales of 25,758, 3,919, and 2,039 Common shares on 03/11/2026, 03/04/2026, and 03/02/2026, with gross amounts of $2,145,673.70, $334,272.49, and $181,321.64.

Does the filing show any exercised options for KYMR?

Yes. The filing shows an exercise of stock options for 109,127 Common shares executed on 03/23/2026 and designated as a cash exercise in the excerpt.

Were any Restricted Stock Units issued according to the filing?

The filing records 6,850 Restricted Stock Units issued on 03/01/2026. The excerpt labels these as issuer-side RSUs but does not state vesting terms or recipient holdings.

Are the sale proceeds and dates reported in the Form 144?

Yes. For each 10b5-1 sale the filing lists dates and gross proceeds: $2,145,673.70 on 03/11/2026, $334,272.49 on 03/04/2026, and $181,321.64 on 03/02/2026.

Does the filing state who receives proceeds from the option exercise or RSUs?

The excerpt identifies the option exercise and RSU issuance as Issuer actions in the securities table. It does not specify beneficiary cash‑flow recipients or use of proceeds in the provided lines.