Protagonist Therapeutics, Inc (PTGX) Insider Ownership

Historic Insider Ownership Trends

Protagonist Therapeutics's three largest insider shareholders as of April 17, 2026 are Dinesh V Ph D Patel (President And Ceo, 524.94K shares), Suneel Gupta (Chief Development Officer, 267.43K shares), David Y Liu (Chief Rd Strategy Officer, 167.59K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Dinesh V Ph D Patel President And Ceo 524,938 0 25 Mar, 2026
Suneel Gupta Chief Development Officer 267,433 0 27 Nov, 2024
David Y Liu Chief Rd Strategy Officer 167,590 0 17 Nov, 2022
Arturo Md Molina Chief Medical Officer 84,115 0 27 Mar, 2026
Asif Ali Chief Financial Officer 60,753 0 27 Mar, 2026
Donald A. Kalkofen Chief Financial Officer 18,521 0 17 Feb, 2022
Bryan Giraudo - 17,825 0 06 Jan, 2026
Sarah A O'Dowd - 7,825 0 06 Jan, 2026
William D. Waddill - 7,825 0 06 Feb, 2026
Lewis T Williams - 7,825 0 18 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
26 Mar, 2026 Arturo Md Molina Common Stock A 15,000 $8.04 99,115 D M
26 Mar, 2026 Asif Ali Common Stock A 19,500 $19.19 80,253 D M
26 Mar, 2026 Arturo Md Molina Common Stock D 15,000 $104.79 84,115 D S
26 Mar, 2026 Asif Ali Common Stock A 5,265 $12.17 85,518 D M
26 Mar, 2026 Asif Ali Common Stock D 24,765 $104.24 60,753 D S
26 Mar, 2026 Arturo Md Molina Stock Option (right to buy) D 15,000 $0.00 50,971 D M
26 Mar, 2026 Asif Ali Stock Option (right to buy) D 19,500 $0.00 31,300 D M
26 Mar, 2026 Asif Ali Stock Option (right to buy) D 5,265 $0.00 13,282 D M
23 Mar, 2026 Dinesh V Ph D Patel Common Stock D 50,000 $0.00 524,938 D G
24 Mar, 2026 Dinesh V Ph D Patel Common Stock A 59 $8.58 524,997 D M
24 Mar, 2026 Dinesh V Ph D Patel Common Stock D 59 $101.00 524,938 D S
25 Mar, 2026 Dinesh V Ph D Patel Common Stock A 54,641 $8.58 579,579 D M
25 Mar, 2026 Dinesh V Ph D Patel Common Stock D 54,641 $101.00 524,938 D S
24 Mar, 2026 Dinesh V Ph D Patel Stock Option (right to buy) D 59 $0.00 54,641 D M
25 Mar, 2026 Dinesh V Ph D Patel Stock Option (right to buy) D 54,641 $0.00 0 D M
17 Feb, 2026 Lewis T Williams Common Stock A 18,000 $10.84 25,825 D M
17 Feb, 2026 Lewis T Williams Common Stock D 18,000 $82.42 7,825 D S
17 Feb, 2026 Lewis T Williams Stock Option (right to buy) A 18,000 $0.00 6,000 D M
06 Feb, 2026 William D. Waddill Common Stock A 20,000 $8.31 27,825 D M
06 Feb, 2026 William D. Waddill Common Stock D 20,000 $83.68 7,825 D S