[144] Janux Therapeutics, Inc. SEC Filing

Rhea-AI Filing Summary

Janux Therapeutics shareholder plans a sizable stock sale. A person identified as Andy Meyer has filed to sell 178,767 shares of JANX common stock through Morgan Stanley Smith Barney LLC on or around 01/26/2026 on the NASDAQ. The filing lists an aggregate market value of $2,601,113.48 for these shares, with 60,147,807 shares of common stock outstanding. The shares to be sold were acquired on 01/26/2026 by exercising options under a registered plan for cash. Over the prior three months, the same seller reported multiple JANX stock sales totaling several tranches, including 118,122 shares on 01/23/2026 and 16,665 shares on 10/28/2025.

Insights

Equity ownership and insider activity analyst

Form 144 signals a planned, option-related JANX share sale.

The filing shows an individual shareholder in Janux Therapeutics planning to sell 178,767 shares of common stock, with an indicated aggregate market value of $2,601,113.48. These shares were acquired on 01/26/2026 via exercise of stock options under a registered plan, paid in cash, which is a typical mechanism for equity compensation realization.

The notice also lists prior sales over the last three months, including 118,122 shares sold on 01/23/2026 for gross proceeds of $1,738,389.66 and 16,665 shares sold on 10/28/2025 for $500,314.00. The filing ties the planned sale to Rule 144, which governs resales by affiliates and large holders and includes a representation that the seller is not aware of undisclosed material adverse information about the company’s operations.

Overall, this is a disclosure of a significant prospective share sale relative to a single holder, not a change in Janux’s underlying business. The impact on markets, if any, would depend on trading volume and investor perception once sales occur, while total shares outstanding are stated as 60,147,807.

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	178767	2601113.48	60147807	01/26/2026	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	01/26/2026	Exercise of options under a registered plan	Issuer			178767	01/26/2026	Cash

* 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
Andy Meyer 10955 Vista Sorrento Parkway, Suite 200 San Diego CA 92130	Common	12/01/2025	3333	109789.00
Andy Meyer 10955 Vista Sorrento Parkway, Suite 200 San Diego CA 92130	Common	11/14/2025	3333	99850.00
Andy Meyer 10955 Vista Sorrento Parkway, Suite 200 San Diego CA 92130	Common	10/28/2025	16665	500314.00
ANDY MEYER 10955 Vista Sorrento Parkway, Suite 200 San Diego CA 92130	Common	01/23/2026	118122	1738389.66
Andy Meyer 10955 Vista Sorrento Parkway, Suite 200 San Diego CA 92130	Common	01/02/2026	1879	25798.00

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)