Arturo Molina plans sale of 5,000 PTGX shares

Arturo Molina filed a Rule 144 notice to sell 5,000 shares of common stock of the PTGX issuer through Morgan Stanley Smith Barney LLC, with an aggregate market value of $411,396.00.

Rhea-AI Filing Summary

Arturo Molina filed a Rule 144 notice to sell 5,000 shares of common stock of the PTGX issuer through Morgan Stanley Smith Barney LLC, with an aggregate market value of $411,396.00. The shares were acquired on 01/26/2026 via a stock option exercise from the issuer and paid for in cash the same day.

The notice also lists recent activity over the prior three months, including sales of 2,712 shares on 11/18/2025 for gross proceeds of $229,896.24, 13,151 shares on 01/23/2026 for $1,097,115.60, and 9,514 shares on 01/20/2026 for $784,702.35. The issuer reports 62,515,666 shares of this class outstanding, and the planned sale is to be executed on or about 01/26/2026 on the NASDAQ exchange.

FAQ

What does the Form 144 filing for PTGX indicate?

The Form 144 shows that Arturo Molina plans to sell 5,000 shares of PTGX issuer common stock, with an aggregate market value of $411,396.00, under Rule 144.

How were the 5,000 PTGX shares being sold acquired?

The 5,000 PTGX shares were acquired on 01/26/2026 through a stock option exercise from the issuer, and the purchase price was paid in cash on the same date.

What recent PTGX share sales by Arturo Molina are disclosed?

Disclosed sales include 2,712 shares on 11/18/2025 for $229,896.24, 9,514 shares on 01/20/2026 for $784,702.35, and 13,151 shares on 01/23/2026 for $1,097,115.60.

On which exchange and when are the PTGX shares expected to be sold?

The Form 144 states that the 5,000 common shares are expected to be sold on or about 01/26/2026 on the NASDAQ stock market.

How many PTGX shares of this class are outstanding?

The filing reports that there are 62,515,666 shares of this class of PTGX issuer common stock outstanding.

What representation does the seller make in the Form 144 for PTGX?

By signing, the seller represents that they do not know of any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.

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Accepted by SEC EDGAR 01/26/2026 - 04:29 PM Learn about SEC filing dates

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	0001398940
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	PROTAGONIST THERAPEUTICS, INC.
SEC File Number	001-37852
Address of Issuer	7707 Gateway Boulevard, Suite 140 Newark CALIFORNIA 94560-1160
Phone	(510) 474-0170
Name of Person for Whose Account the Securities are To Be Sold	ARTURO MOLINA
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	Officer

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	5000	411396.00	62515666	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	Stock option exercise	Issuer			5000	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
ARTURO MOLINA 7707 Gateway Boulevard, Suite 140 Newark CA 94560-1160	Common	11/18/2025	2712	229896.24
ARTURO MOLINA 7707 Gateway Boulevard, Suite 140 Newark CA 94560-1160	Common	01/23/2026	13151	1097115.60
ARTURO MOLINA 7707 Gateway Boulevard, Suite 140 Newark CA 94560-1160	Common	01/20/2026	9514	784702.35

144: Remarks and Signature

Remarks
Date of Notice	01/26/2026
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	/s/ Arturo Molina
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)