Protagonist Therapeutics, Inc SEC filings PTGX

Protagonist Therapeutics, Inc has 706 filings in SEC EDGAR's recent list, going back to Sep 28, 2006. Its latest annual report, Form ARS, was filed on Apr 28, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.

Form Description Filed Period
ARS Annual report to shareholders Apr 28, 2026 Dec 31, 2025
10-K Annual report Feb 25, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 29, 2025 Dec 31, 2024
10-K Annual report Feb 21, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 26, 2024 Dec 31, 2023
10-K Annual report Feb 27, 2024 Dec 31, 2023
ARS Annual report to shareholders Apr 12, 2023 Dec 31, 2022
10-K Annual report Mar 15, 2023 Dec 31, 2022
10-K Annual report Feb 28, 2022 Dec 31, 2021
10-K Annual report Mar 10, 2021 Dec 31, 2020
10-K Annual report Mar 10, 2020 Dec 31, 2019
10-K Annual report Mar 12, 2019 Dec 31, 2018
10-K Annual report Mar 7, 2018 Dec 31, 2017
10-K Annual report Mar 7, 2017 Dec 31, 2016

Showing 14 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Pharmaceutical Preparations (SIC 2834)
Listed as
PTGX (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Newark, CA
SEC filer status
Large accelerated filer
SEC CIK
1377121
Former names
Protagonist Therapeutics Inc (until Jun 11, 2013); Protagonist Inc (until Sep 28, 2006)

Other Pharmaceutical Preparations companies

All 570 Pharmaceutical Preparations companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.