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Protagonist Therapeutics, Inc

For the period ended Sep 30, 2025. Filed Nov 6, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 6, 2025

PTGX$136.26+0.3%Stored close · as of Nov 10, 2026

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Condensed Consolidated Statements of Cash Flows

(In thousands)

​​​​​​​
​ · ​ · Nine Months Ended
​ · ​ · September 30,
​ · 2025 · 2024
Cash Flows from Operating Activities · ​ · ​ · ​
Net (loss) income​$(85,765)​$143,514
Adjustments to reconcile net (loss) income to net cash provided by operating activities:​​​​​​
Stock-based compensation​​35,273​​28,461
Non-cash lease expense​​1,243​​1,651
Depreciation​​904​​708
Accretion of discount on marketable securities​​(5,887)​​(6,115)
Net realized loss on sale of marketable securities​​4​​—
Changes in operating assets and liabilities:​​​​​​
Receivable from collaboration partner​​164,417​​10,000
Prepaid expenses and other assets​​(1,995)​​(4,088)
Accounts payable​​4,030​​2,272
Accrued expenses and other payables​​(833)​​1,061
Payable to collaboration partner​​—​​(3)
Income taxes payable​​(2,689)​​1,049
Deferred revenue​​(13,579)​​36,205
Operating lease liability​​(477)​​(1,385)
Net cash provided by operating activities​​94,646​​213,330
Cash Flows from Investing Activities​​​​​​
Purchase of marketable securities​​(442,311)​​(507,293)
Proceeds from maturities of marketable securities​​338,607​​217,580
Proceeds from sale of marketable securities​​7,003​​—
Purchases of property and equipment​​(1,446)​​(1,045)
Net cash used in investing activities​​(98,147)​​(290,758)
Cash Flows from Financing Activities​​​​​​
Proceeds from issuance of common stock upon exercise of stock options and purchases under employee stock purchase plan​​20,506​​22,422
Tax withholding payments related to net settlement of restricted stock units​​(479)​​(600)
Net cash provided by financing activities​​20,027​​21,822
Net increase (decrease) in cash, cash equivalents and restricted cash​​16,526​​(55,606)
Cash, cash equivalents and restricted cash, beginning of period​97,474​186,952
Cash, cash equivalents and restricted cash, end of period​$114,000​$131,346
Supplemental Disclosure of Non-Cash Financing and Investing Information:​​​​​​
Leasehold improvements obtained under tenant improvement allowance​$360​$613
Purchases of property and equipment in accounts payable and accrued liabilities​$8​$325
Right-of-use asset obtained in exchange for lease obligation​$—​$10,511
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.