PTGX

Protagonist Therapeutics, Inc

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Healthcare · Biotechnology

$145.72

−$3.08−2.07%

Delayed · 2026-09-04T20:00:00.000Z · marketstack

2 of 47tracked managers hold this· Q2 2026

Aug 10, 2026$145.16

−$4.84−3.23%over 1M

Day range43% of range

$144.01$147.99

Session

Previous close: $148.80
Open: $146.47
Volume: 500.97K
Avg volume: -
Day high: $147.99
Day low: $144.01

Fundamentals

Visualize fundamentals and more

Market cap: 9.61B
P/E ratio: 124.80
EPS (TTM): $1.17
Dividend yield: -
Beta: 1.76
Shares outstanding: 65.94M

Source SEC EDGAR · 9/10/2026

Tracked investors

As of Q2 2026 · 72 days ago · next update ~14 Nov 2026· what moved this quarter, onMeasure

2 fund managers this platform follows disclosed a position here, from quarterly SEC filings up to 45 days old; a manager may have sold since without yet having to say so.

Stanley Druckenmiller
Duquesne Family Office
$25.61M
0.59%of book
Joel Greenblatt
Gotham Asset Management
$2.29M
0.01%of book

Manager	Position	Share of their book	Last change
Stanley Druckenmiller Duquesne Family Office	$25.61M	0.59%
Joel Greenblatt Gotham Asset Management	$2.29M	0.01%

Share price, with each quarter a tracked manager’s position changed shaded across the range it traded in.

050100150

146

now

Q2 '21

Q3 '21

Q1 '25

Q2 '25

Q3 '25

Q4 '25

Q1 '26

Q2 '26

Hover a shaded quarter to see it moved. Who, and the range they traded in, is onBespoke

13F filings cover US-listed shares only (not cash, bonds, shorts, or private holdings) and are never a recommendation to do the same.

Recent activity

2 more events, included withMeasure

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Ask about Protagonist Therapeutics, Inc

The assistant answers from what PTGX has actually filed: 12 annual reports filed with the SEC, 13F positions from the 2 tracked investors who hold it and 4 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.

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What an account lets you do with Protagonist Therapeutics, Inc

Separate the decisions from the paperwork
Every Form 4 PTGX insiders have filed, with vesting and automatic tax sales struck out: what's left is the buys and sells somebody actually chose to make.
Every filingMeasure
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Every tracked position priced at the quarter it was filed and diffed against the one before it: who added, who trimmed, who walked away.
Every position they holdMeasure
Interrogate the filing, not the internet
Ask anything about Protagonist Therapeutics, Inc's fundamentals. The assistant answers from its own filings and cites the figure, never a guess from the open web.

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