Company Analysis

Protagonist Therapeutics, Inc. (PTGX)

Nasdaq: PTGX · Pharmaceutical Preparations · Newark, CA · filing with the SEC since 2006
Grade5.7
◀ Past 4.3● Present 7.6▶ Future 4.9

Filings

334 filings since 2017 beside 312 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 36 days after the quarter ended. The proxy statement was last filed Apr 28, 2026.

Filings a yearinsider forms included
6553455655816794
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 3 times in the last 36 months, the newest Jun 18, 2026.
Insider forms 312

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 6, 2026 10-Q Quarterly report Sep 30, 2026
Nov 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Oct 27, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 13, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 7, 2026 SCHEDULE 13G Large holder notice
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 POS Employee stock plan update
Aug 5, 2026 S-8 Employee stock plan registration
Aug 5, 2026 10-Q Quarterly report Jun 30, 2026
Aug 5, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Jun 18, 2026 8-K items 5.02, 5.07, 9.01 Officer or director change; Shareholder vote · Current report Jun 17, 2026
May 12, 2026 SCHEDULE 13G Large holder notice
May 5, 2026 10-Q Quarterly report Mar 31, 2026
May 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 30, 2026 SCHEDULE 13G Large holder notice
Apr 29, 2026 SCHEDULE 13G Large holder notice
Apr 28, 2026 ARS Annual report to shareholders Dec 31, 2025
Apr 28, 2026 DEFA14A Extra proxy material
Apr 28, 2026 DEF 14A Proxy statement Jun 17, 2026
Mar 27, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 25, 2026 S-8 Employee stock plan registration
Feb 25, 2026 10-K Annual report Dec 31, 2025
Feb 25, 2026 8-K items 2.02, 9.01 Results released · Current report
Feb 17, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 10, 2026 SCHEDULE 13G Large holder notice
Feb 6, 2026 SCHEDULE 13G/A Large holder update, amended
Jan 30, 2026 SCHEDULE 13G/A Large holder update, amended
Jan 12, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Nov 14, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 14, 2025 SCHEDULE 13G/A Large holder update, amended
Nov 6, 2025 10-Q Quarterly report Sep 30, 2025
40 of 334 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton PTGX · research, not advice