A detailed history of Stanley Druckenmiller (Duquesne Family Office LLC) transactions in Protagonist Therapeutics, Inc stock. As of the latest transaction made, Duquesne Family Office LLC holds 159,700 shares of PTGX stock, worth $13.5 Million. This represents 0.26% of its overall portfolio holdings.

Number of Shares
159,700
Holding current value
$13.5 Million
% of portfolio
0.26%

Shares

1 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 14, 2025

BUY
$49.7 - $67.42 $7.94 Million - $10.8 Million
159,700 New
159,700 $10.6 Million

Others Institutions Holding PTGX

About Protagonist Therapeutics, Inc


  • Ticker PTGX
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 49,084,100
  • Market Cap $4.15B
  • Description
  • Protagonist Therapeutics, Inc., a biopharmaceutical company, discovers and develops peptide-based therapeutic drugs to address hematology and blood disorders, and inflammatory and immunomodulatory diseases. It is developing rusfertide (PTG-300), an injectable hepcidin mimetic that is in Phase II clinical trials for the treatment of patients with...
More about PTGX
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