By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Protagonist Therapeutics, Inc corporate insiders have only been selling lately: seven insiders trimmed about $96.2 million of stock over 12 months, with no open-market purchases.
Keep in mind most insider selling is routine — stock-based pay has to be converted to cash at some point.
Looking at the quarterly pattern: 7 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters. On the institutional side, 3,162 funds reported holding PTGX at the end of Q2 2026, and more funds bought than sold.
Are insiders buying or selling PTGX stock?
In the last 12 months Protagonist Therapeutics, Inc insiders made open-market purchases worth about $0 and sales worth about $96.2 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in PTGX?
The most recent open-market insider trade in PTGX was filed on 2026-10-02.
How many institutions own PTGX?
3,162 investment managers reported holding PTGX in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded PTGX?
No congressional trades in PTGX were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).