Insider sells 36,000 and 12,000 PTGX shares

Bryan M. Giraudo and Bryan M. & Courtney L. Giraudo reported dispositions of Common stock in a Form 144 related to PTGX.

Rhea-AI Filing Summary

Bryan M. Giraudo and Bryan M. & Courtney L. Giraudo reported dispositions of Common stock in a Form 144 related to PTGX. The filing shows sales on 05/07/2026: 12,000 shares by Bryan M. & Courtney L. Giraudo for $1,200,873.60 and 36,000 shares by Bryan M. Giraudo for $3,604,968.00. The record lists prior compensation issuances of 6,000 shares (12/03/2019) and 5,130 shares (01/15/2026) under issuer compensation entries.

Key Figures

Sale by Bryan M. & Courtney L. Giraudo: 12,000 shares Proceeds reported (12,000 shares): $1,200,873.60 Sale by Bryan M. Giraudo: 36,000 shares +3 more

6 metrics

Sale by Bryan M. & Courtney L. Giraudo 12,000 shares disposition on 05/07/2026

Proceeds reported (12,000 shares) $1,200,873.60 proceeds tied to 05/07/2026 sale

Sale by Bryan M. Giraudo 36,000 shares disposition on 05/07/2026

Proceeds reported (36,000 shares) $3,604,968.00 proceeds tied to 05/07/2026 sale

Compensation issuance 6,000 shares dated 12/03/2019 (issuer compensation)

Compensation issuance 5,130 shares dated 01/15/2026 (issuer compensation)

Key Terms

Form 144, Compensation, Issuer

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Compensation financial

"Common | 12/03/2019 | Compensation | Issuer"

Issuer regulatory

"Compensation | Issuer | | | 6000"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the PTGX Form 144 disclose about recent insider sales?

The Form 144 discloses insider sales on 05/07/2026: 12,000 shares (proceeds $1,200,873.60) and 36,000 shares (proceeds $3,604,968.00). The filing lists these as dispositions of Common stock.

Who sold shares in the PTGX Form 144 filing?

The filing names Bryan M. Giraudo and Bryan M. & Courtney L. Giraudo as the reporting parties. Both are listed with residential addresses and reported sales of Common stock on the same date.

Does the PTGX Form 144 show any compensation issuances?

Yes; the filing lists compensation-related Common stock entries: 6,000 shares dated 12/03/2019 and 5,130 shares dated 01/15/2026, recorded under issuer compensation information.

Are total proceeds from the PTGX insider sales disclosed?

The filing provides proceeds per reported sale: $1,200,873.60 for 12,000 shares and $3,604,968.00 for 36,000 shares. The document lists these per-transaction proceeds explicitly.

What date are the reported sales in the PTGX Form 144?

All reported dispositions in the excerpt are dated 05/07/2026. That date appears next to each sale line in the provided sales section.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/08/2026 - 04:23 PM EDT 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	0001740847
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	BRYAN M & COURTNEY L GIRAUDO RT
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	Director

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	11130	1113000.00	64311373	05/08/2026	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	12/03/2019	Compensation	Issuer			6000	12/03/2019	Not Applicable
Common	01/15/2026	Compensation	Issuer			5130	01/15/2026	Not Applicable

* 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
BRYAN M & COURTNEY L GIRAUDO RT 7707 Gateway Boulevard, Suite 140 Newark CA 94560-1160	Common	05/07/2026	12000	1200873.60
BRYAN GIRAUDO 7707 Gateway Boulevard, Suite 140 Newark CA 94560-1160	Common	05/07/2026	36000	3604968.00

144: Remarks and Signature

Remarks
Date of Notice	05/08/2026
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/ Bryan Giraudo, Trustee
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)