Company · Ownership research

Protagonist Therapeutics, Inc PTGX

CIK 0001377121

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 32 rows; the complete set is available through the API.

Insider filings on file run through Oct 2, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $116.58M

Nov 1, 2023 – Oct 2, 2026
Available records · partial months are marked ·

202610 of 30 preview events · 32 available in 2026

Date	Insider	Activity	Trade value (USD)	% of prior holding
Sep 30, 2026	Ali Asif Chief Financial Officer	Sale10b5-1 footnote	$8.31M 58,629 shares sold	49.84% sold Direct holding	▾
Sep 10, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$1.05M 7,278 shares sold	1.37% sold Direct holding	▾
Sep 9, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$9.29M 63,548 shares sold	10.83% sold Direct holding	▾
Sep 8, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$7.90M 54,174 shares sold	9.39% sold Direct holding	▾
Aug 11, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$5.09M 34,239 shares sold	6.14% sold Direct holding	▾
Aug 10, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$9.81M 65,761 shares sold	11.16% sold Direct holding	▾
Jun 23, 2026	Waddill William D. Director	Sale	$1.06M 9,000 shares sold	53.49% sold Direct holding	▾
Jun 10, 2026	Waddill William D. Director	Sale	$969.12K 9,000 shares sold	53.49% sold Direct holding	▾
May 29, 2026	Waddill William D. Director	Sale	$896.76K 9,000 shares sold	53.49% sold Direct holding	▾
May 12, 2026	PATEL DINESH V PH D President and CEO · Director	Sale	$7.51M 75,000 shares sold	12.53% sold Direct holding	▾

Showing 30 / 32 record groups in 2026. The complete set is available through the API.

Protagonist Therapeutics, Inc · PTGX

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{"action":"list","ticker":"PTGX","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.