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NASDAQ: PTGX
Protagonist Therapeutics Inc Stock Ownership - Who owns Protagonist Therapeutics?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Protagonist Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Dinesh V. Ph D. PatelCEO;Pres2026-09-107,278$144.10
$1.05MSell
Dinesh V. Ph D. PatelCEO;Pres2026-09-107,278$21.58
$157.06kBuy
Dinesh V. Ph D. PatelCEO;Pres2026-09-0963,548$21.58
$1.37MBuy
Dinesh V. Ph D. PatelCEO;Pres2026-09-0963,548$146.18
$9.29MSell
Dinesh V. Ph D. PatelCEO;Pres2026-09-0854,174$21.58
$1.17MBuy
Dinesh V. Ph D. PatelCEO;Pres2026-09-0854,174$145.87
$7.90MSell
Dinesh V. Ph D. PatelCEO;Pres2026-08-1134,239$148.52
$5.09MSell
Dinesh V. Ph D. PatelCEO;Pres2026-08-1134,239$21.58
$738.88kBuy
Dinesh V. Ph D. PatelCEO;Pres2026-08-1065,761$149.11
$9.81MSell
Dinesh V. Ph D. PatelCEO;Pres2026-08-1065,761$21.58
$1.42MBuy

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Net Insider Buy/Sell (L12M) Ownership

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PTGX Shareholders

What type of owners hold Protagonist Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Julie Papanek3.79%2,453,255$351.80MInsider
Johnson Johnson3.78%2,449,183$351.21MInsider
Canaan X LP3.27%2,116,552$303.51MInsider
Armen Shanafelt3.24%2,099,482$301.07MInsider
LV Management Group LLC3.24%2,099,482$301.07MInsider
Adage Capital Partners GP LLC3.18%2,056,076$294.84MInsider
Dinesh V. Ph D. Patel0.81%522,968$74.99MInsider
Suneel Gupta0.41%267,433$38.35MInsider
David Y. Liu0.26%167,590$24.03MInsider
Arturo Md Molina0.13%84,115$12.06MInsider

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PTGX vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PTGX0.12%22.54%Net SellingNet Buying
ARWR0.08%9.73%Net SellingNet Selling
CYTK0.12%10.96%Net SellingNet Selling
KYMR0.12%31.95%Net SellingNet Selling
PCVX0.11%13.61%Net SellingNet Selling
View Top Biotech Stocks

Protagonist Therapeutics Stock Ownership FAQ

Who owns Protagonist Therapeutics?

Protagonist Therapeutics (NASDAQ: PTGX) is owned by 0.12% institutional shareholders, 22.54% Protagonist Therapeutics insiders, and 77.35% retail investors. Julie Papanek is the largest individual Protagonist Therapeutics shareholder, owning 2.45M shares representing 3.79% of the company. Julie Papanek's Protagonist Therapeutics shares are currently valued at $350.42M.

If you're new to stock investing, here's how to buy Protagonist Therapeutics stock.
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