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P

Protagonist Therapeutics PTGX · USD

Health Care · US listing · 🇺🇸 United States

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135.90

+2.92%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
BLACKROCK, INC.9.8m15.38%+63.4k31 Mar 2026
BlackRock Institutional Trust Company, N.A.8.3m13.09%+299.8k31 Dec 2025
FARALLON CAPITAL MANAGEMENT LLC6.3m9.99%+204.9k31 Mar 2026
Farallon Capital Management, L.L.C.6.1m9.66%−52k31 Dec 2025
The Vanguard Group, Inc.5.4m8.50%+1.2m31 Dec 2025
UBS GROUP AG5.2m8.14%+2.4m31 Mar 2026
RTW INVESTMENTS, LP5.1m7.96%—31 Mar 2026
RTW Investments L.P.5.1m7.96%−697.2k31 Dec 2025
WELLINGTON MANAGEMENT GROUP LLP3.6m5.66%+428.2k31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC3.5m5.48%+3.5m31 Mar 2026
State Street Investment Management (US)3.2m5.03%+33.9k31 Dec 2025
Wellington Management Company, LLP3.2m4.99%+1.3m31 Dec 2025
STATE STREET CORP3.1m4.90%−83k31 Mar 2026
JANUS HENDERSON GROUP PLC2.9m4.55%+241.5k31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC2.8m4.41%+2.8m31 Mar 2026

Insider trades

Purchases and sales by directors and officers, as filed with the regulator

DateWhoTypeSharesPriceValue
26 Mar 2026 ↗Ali AsifChief Financial OfficerSale24.8k104.24$2.6m
26 Mar 2026 ↗MOLINA ARTURO MDChief Medical OfficerSale15k104.79$1.6m
26 Mar 2026 ↗SELICK HAROLD EDirectorSale24k105.00$2.5m
25 Mar 2026 ↗PATEL DINESH V PH DPresident and CEOSale54.6k101.00$5.5m
24 Mar 2026 ↗PATEL DINESH V PH DPresident and CEOSale59101.00$5,959

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

10.3m

+10.2% on the period before. 12.0 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

56.6%

Last 60 trading days.

Failed deliveries

Shares not delivered on settlement, from the SEC

  • 15 Sept 20263,133 shares
  • 9 Sept 202628,995 shares
  • 3 Sept 202647,443 shares
  • 2 Sept 20261,629 shares
  • 26 Aug 20262,090 shares

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

Nothing here is investment advice. Prices can be delayed or wrong, so check with the exchange before relying on them. Data for this page. How we cover markets.