Insider Transactions Reported by 13 Insiders of Protagonist Therapeutics, Inc

Symbol
PTGX on Nasdaq
Location
Newark, CA

Insiders trading volume in the past year

Protagonist Therapeutics, Inc executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Ph.D. Dinesh V Patel President and CEO, Director $47,793,070 -$10,354,767 -18% 23 Jan 2026
Arturo Molina MD Chief Medical Officer $6,897,430 -$4,045,316 -37% 23 Jan 2026
Asif Ali Chief Financial Officer $5,015,004 -$4,630,152 -48% 27 Jan 2026
David Y. Liu Chief R&D Strategy Officer $4,127,742 16 Nov 2022
Suneel Gupta Chief Development Officer $3,254,660 25 Nov 2024
Bryan Giraudo Director $2,255,549 02 Jan 2026
Sarah A. O'Dowd Director $683,433 02 Jan 2026
William D. Waddill Director $654,796 -$3,147,080 -83% 06 Feb 2026
Lewis T. "rusty" Williams Director $644,936 -$1,483,560 -70% 17 Feb 2026
Donald A. Kalkofen Chief Financial Officer $456,172 15 Feb 2022
Harold E. Selick Director $256,157 09 Jan 2026
Sarah B. Noonberg Director 16 Jan 2023
Daniel N. Swisher Jr. Director 26 Oct 2023

Recent Insider Transactions by Companies or Individuals for Protagonist Therapeutics, Inc

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Lewis T. "rusty" Williams PTGX Common Stock Sale -69.7% $1,483,560 $82.42 -18,000 7,825 17 Feb 2026 Direct
Lewis T. "rusty" Williams PTGX Common Stock Options Exercise 230% 18,000 25,825 17 Feb 2026 Direct
Lewis T. "rusty" Williams PTGX Stock Option (right to buy) Options Exercise 18,000 6,000 17 Feb 2026 Direct
William D. Waddill PTGX Common Stock Sale -71.9% $1,673,600 $83.68 -20,000 7,825 06 Feb 2026 Direct
William D. Waddill PTGX Common Stock Options Exercise 255.6% 20,000 27,825 06 Feb 2026 Direct
William D. Waddill PTGX Stock Option (right to buy) Options Exercise -100% -20,000 0 06 Feb 2026 Direct
Asif Ali PTGX Common Stock Sale -43.4% $3,841,037 $83.13 -46,203 60,320 27 Jan 2026 Direct
Asif Ali PTGX Common Stock Options Exercise 35.7% 28,000 106,523 27 Jan 2026 Direct
Asif Ali PTGX Stock Option (right to buy) Options Exercise -60.2% -28,000 18,547 27 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Sale -5.61% $410,000 $82.00 -5,000 84,115 27 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Options Exercise 5.94% 5,000 89,115 27 Jan 2026 Direct
Arturo Molina MD PTGX Stock Option (right to buy) Options Exercise -7.05% -5,000 65,971 27 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Sale -0.7% $338,417 $83.19 -4,068 574,505 27 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Options Exercise 0.71% 4,068 578,573 27 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Stock Option (right to buy) Options Exercise -1.34% -4,068 300,000 27 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Sale -5.61% $411,400 $82.28 -5,000 84,115 26 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Options Exercise 5.94% 5,000 89,115 26 Jan 2026 Direct
Arturo Molina MD PTGX Stock Option (right to buy) Options Exercise -6.58% -5,000 70,971 26 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Sale -4.15% $2,091,470 $84.03 -24,890 574,505 26 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Options Exercise 4.41% 24,890 588,710 26 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Stock Option (right to buy) Options Exercise -100% -24,890 0 26 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Sale -13.5% $1,083,905 $82.42 -13,151 84,115 23 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Sale -3.25% $1,633,856 $84.59 -19,315 574,505 23 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Options Exercise 3.36% 19,315 593,820 23 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Gift -1.03% -6,000 574,505 23 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Stock Option (right to buy) Options Exercise -64.4% -19,315 10,685 23 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Sale -8.91% $784,715 $82.48 -9,514 97,266 20 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Sale -5.6% $2,840,446 $82.48 -34,438 580,505 20 Jan 2026 Direct
Asif Ali PTGX Common Stock Sale -9.91% $708,338 $82.48 -8,588 78,077 20 Jan 2026 Direct
Harold E. Selick PTGX Common Stock Options Exercise 30.7% 14,299 60,845 09 Jan 2026 Direct
Harold E. Selick PTGX Stock Option (right to buy) Options Exercise -100% -14,299 0 09 Jan 2026 Direct
Harold E. Selick PTGX Common Stock Award 6.15% 2,695 46,546 02 Jan 2026 Direct
Harold E. Selick PTGX Stock Option (right to buy) Award 3,762 3,762 02 Jan 2026 Direct
William D. Waddill PTGX Common Stock Award 52.5% 2,695 7,825 02 Jan 2026 Direct
William D. Waddill PTGX Stock Option (right to buy) Award 3,762 3,762 02 Jan 2026 Direct
Bryan Giraudo PTGX Common Stock Award 17.8% 2,695 17,825 02 Jan 2026 Direct
Bryan Giraudo PTGX Stock Option (right to buy) Award 3,762 3,762 02 Jan 2026 Direct
Lewis T. "rusty" Williams PTGX Common Stock Award 52.5% 2,695 7,825 02 Jan 2026 Direct
Lewis T. "rusty" Williams PTGX Stock Option (right to buy) Award 3,762 3,762 02 Jan 2026 Direct
Sarah A. O'Dowd PTGX Common Stock Award 52.5% 2,695 7,825 02 Jan 2026 Direct
Sarah A. O'Dowd PTGX Stock Option (right to buy) Award 3,762 3,762 02 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Award 18.4% 95,400 614,943 02 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Stock Option (right to buy) Award 120,200 120,200 02 Jan 2026 Direct
Asif Ali PTGX Common Stock Award 41.9% 25,600 86,665 02 Jan 2026 Direct
Asif Ali PTGX Stock Option (right to buy) Award 32,000 32,000 02 Jan 2026 Direct
Arturo Molina MD PTGX Common Stock Award 31.5% 25,600 106,780 02 Jan 2026 Direct
Arturo Molina MD PTGX Stock Option (right to buy) Award 32,000 32,000 02 Jan 2026 Direct
Ph.D. Dinesh V Patel PTGX Common Stock Gift -0.08% -440 519,543 21 Nov 2025 Direct
Arturo Molina MD PTGX Common Stock Sale -3.23% $229,896 $84.77 -2,712 81,180 17 Nov 2025 Direct
William D. Waddill PTGX Common Stock Sale -70% $979,480 $81.62 -12,000 5,130 10 Oct 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.