PTGX SCHEDULE 13G/A: SEC filing
Farallon Capital Management and affiliated individuals
Filed with the SEC on · accession 0000908834-26-000405
PTGX filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Aug 13, 2026. A report the company filed with the SEC (the US market regulator). The stock moved -0.4% by the first close after the filing.
Summary of the filing
Farallon Capital Management and affiliated individuals filed a joint acquisition statement (Amendment to Schedule 13G) regarding their beneficial ownership of Protagonist Therapeutics, Inc. common stock.
Key details
How PTGX stock reacted
Close before
$152.01
Aug 12, 2026
First close after
-0.39%
$151.42
5 trading days
+1.93%
$154.94
Since filing
-13.14%
$132.04
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Click hereFrequently asked questions
What did PTGX file with the SEC on Aug 13, 2026?
PTGX filed a SCHEDULE 13G/A (SEC filing). Farallon Capital Management and affiliated individuals filed a joint acquisition statement (Amendment to Schedule 13G) regarding their beneficial ownership of Protagonist Therapeutics, Inc. common stock.
How do I read a SCHEDULE 13G/A?
A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).
How did PTGX stock react to this filing?
PTGX closed at $152.01 before the filing and $151.42 on Aug 13, 2026 (-0.39%). Five trading days later: $154.94 (+1.93%).
Other PTGX SEC filings
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