Insider Arturo Molina files to sell 5,000 PTGX (PTGX) shares under Rule 144

Rhea-AI Filing Summary

Arturo Molina has filed a Rule 144 notice to sell 5,000 shares of PTGX common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value of $410,000. These shares were acquired on 01/27/2026 via a stock option exercise paid in cash for 5,000 shares. The notice lists 62,515,666 common shares outstanding and anticipates sale on 01/27/2026 on the NASDAQ market.

Over the prior three months, the same seller reported additional PTGX common stock sales, including 9,514 shares on 01/20/2026 for $784,702.35 and 13,151 shares on 01/23/2026 for $1,097,115.60. The notice also records sales of 5,000 shares on 01/26/2026 for $411,396.00 and 2,712 shares on 11/18/2025 for $229,896.24. By signing, the seller represents not knowing any undisclosed material adverse information about PTGX.

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	5000	410000.00	62515666	01/27/2026	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	01/27/2026	Stock option exercise	Issuer			5000	01/27/2026	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	01/26/2026	5000	411396.00
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

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 PTGX Form 144 filing by Arturo Molina disclose?

The filing shows that Arturo Molina intends to sell 5,000 shares of PTGX common stock under Rule 144 through Morgan Stanley Smith Barney LLC, with an aggregate market value of $410,000 and an expected sale date of 01/27/2026 on NASDAQ.

How were the 5,000 PTGX shares in the new Rule 144 notice acquired?

According to the filing, the 5,000 PTGX common shares were acquired on 01/27/2026 via a stock option exercise from the issuer, with payment described as cash on the same date.

How many PTGX shares has the seller reported selling in the past three months?

The notice lists several prior PTGX sales by the same seller over the past three months, including 2,712 shares on 11/18/2025, 9,514 shares on 01/20/2026, 13,151 shares on 01/23/2026, and 5,000 shares on 01/26/2026.

What gross proceeds from recent PTGX stock sales are shown in the Form 144?

The filing reports gross proceeds of $229,896.24 on 11/18/2025, $784,702.35 on 01/20/2026, $1,097,115.60 on 01/23/2026, and $411,396.00 on 01/26/2026 from prior PTGX common stock sales.

How many PTGX common shares are outstanding according to this Form 144?

The Rule 144 notice states that there are 62,515,666 PTGX common shares outstanding, which serves as a baseline figure in the disclosure.

What representation does the seller make about PTGX information in the Form 144?

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