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Protagonist Therapeutics (PTGX) Institutional Ownership

Protagonist Therapeutics logo
$145.87 -0.31 (-0.21%)
Closing price 04:00 PM Eastern
Extended Trading
$145.81 -0.06 (-0.04%)
As of 07:34 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Protagonist Therapeutics (NASDAQ:PTGX)

Current
Institutional Ownership
Percentage
98.63%
Number of
Institutional Buyers
(last 12 months)
215
Total
Institutional Inflows
(last 12 months)
$3.39B
Number of
Institutional Sellers
(last 12 months)
124
Total
Institutional Outflows
(last 12 months)
$642.21M
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PTGX Institutional Buying and Selling by Quarter

Protagonist Therapeutics Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/7/2026BlackRock Inc.10,307,837$1.26B0.0%N/A16.028%
8/7/2026Deutsche Bank AG141,838$17.39M0.0%N/A0.221%
8/6/2026 Global Retirement Partners LLC1,055$129K0.0%N/A0.002%
8/6/2026 Bank of New York Mellon Corp358,300$43.92M0.0%N/A0.557%
8/6/2026 State of Wyoming3,102$380K0.0%N/A0.005%
8/6/2026 Johnson & Johnson2,449,183$300.22B37.6%N/A3.808%
7/10/2026 Handelsbanken Fonder AB21,400$2.62M0.0%+7.5%0.033%
7/9/2026 Franklin Street Advisors Inc. NC12,810$1.57M0.1%+15.6%0.020%
7/7/2026 GAMMA Investing LLC3,109$381K0.0%+7.2%0.005%
7/7/2026 Harbor Investment Advisory LLC724$89K0.0%N/A0.001%
6/18/2026Pacer Advisors Inc.4,916$518K0.0%N/A0.008%
6/16/2026Empowered Funds LLC2,321$245K0.0%N/A0.004%
6/4/2026Seven Fleet Capital Management LP4,000$422K0.1%-50.0%0.006%
5/29/2026Perceptive Advisors LLC1,230,879$129.74M2.5%-8.9%1.914%
5/26/2026Glenmede Trust Co. NA9,235$973K0.0%-27.6%0.014%
5/26/2026 Axiom Investment Management LLC2,000$211K0.2%N/A0.003%
5/22/2026Segall Bryant & Hamill LLC212,714$22.42M0.3%+64.8%0.331%
5/19/2026Bank of America Corp DE1,295,434$136.54M0.0%+49.3%2.014%
5/19/2026Stempoint Capital LP72,577$7.65M1.5%+22.1%0.113%
5/19/2026Janus Henderson Group PLC2,891,527$304.87M0.1%+9.1%4.496%
5/18/2026ADAR1 Capital Management LLC994,119$104.78M6.2%-5.2%1.546%
5/18/2026Amundi4,113$434K0.0%N/A0.006%
5/18/2026 EverSource Wealth Advisors LLC911$96K0.0%+63.0%0.001%
5/18/2026California State Teachers Retirement System58,677$6.19M0.0%+22.2%0.091%
5/18/2026Royal Bank of Canada1,599$169K0.0%-49.8%0.002%
5/18/2026Rubric Capital Management LP427,998$45.11M0.5%N/A0.666%
5/18/2026Eagle Health Investments LP179,322$18.90M3.3%+213.0%0.279%
5/18/2026Empowered Funds LLC2,321$245K0.0%N/A0.004%
5/16/2026The Manufacturers Life Insurance Company127,818$13.47M0.0%+12.8%0.199%
5/16/2026Quantinno Capital Management LP6,437$678K0.0%+30.1%0.010%
5/16/2026Orbimed Advisors LLC42,100$4.44M0.1%+94.0%0.065%
5/15/2026Weiss Asset Management LP9,780$1.03M0.0%N/A0.015%
5/15/2026Granahan Investment Management LLC27,391$2.89M0.1%N/A0.043%
5/14/2026Gabelli Funds LLC3,229$340K0.0%N/A0.005%
5/14/2026Atika Capital Management LLC62,100$6.55M0.8%-27.8%0.097%
5/14/2026Knott David M Jr63,000$6.64M3.9%-13.7%0.098%
5/14/2026Sei Investments Co.83,197$8.77M0.0%+122.8%0.129%
5/13/2026First Trust Advisors LP87,858$9.26M0.0%+89.1%0.137%
5/8/2026PNC Financial Services Group Inc.3,998$421K0.0%+35.1%0.006%
5/7/2026Dimensional Fund Advisors LP508,103$53.54M0.0%+22.6%0.790%
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5/7/2026 AlphaCentric Advisors LLC9,040$953K1.0%+5.7%0.014%
5/7/2026 SEB Asset Management AB232,416$24.50M0.1%N/A0.361%
5/7/2026Swiss National Bank98,900$10.42M0.0%+0.7%0.154%
5/6/2026 Jennison Associates LLC1,072,011$112.99M0.1%+223.7%1.667%
5/6/2026 Assetmark Inc.46,442$4.90M0.0%+16,195.4%0.072%
5/6/2026Allspring Global Investments Holdings LLC29,916$3.10M0.0%+650.7%0.047%
5/5/2026 Bank of New York Mellon Corp341,465$35.99M0.0%-2.5%0.531%
5/5/2026Illinois Municipal Retirement Fund28,596$3.01M0.0%-8.5%0.044%
5/4/2026 Calamos Advisors LLC23,473$2.47M0.0%N/A0.036%
5/4/2026 Bleakley Financial Group LLC12,802$1.35M0.0%N/A0.020%
5/4/2026 Principal Financial Group Inc.367,822$38.77M0.0%+5.7%0.572%
5/1/2026 Fifth Third Bancorp13,202$1.39M0.0%+3,937.3%0.021%
4/30/2026Hsbc Holdings PLC1,907$201K0.0%N/A0.003%
4/30/2026 Sumitomo Mitsui Trust Group Inc.2,760$291K0.0%+7.8%0.004%
4/29/2026 Burney Co.3,179$335K0.0%-13.6%0.005%
4/28/2026 Abel Hall LLC4,258$449K0.1%N/A0.007%
4/27/2026 New York State Teachers Retirement System47,424$5.00M0.0%-3.9%0.074%
4/25/2026 Strs Ohio15,400$1.62M0.0%-3.1%0.024%
4/25/2026 Keybank National Association OH4,286$452K0.0%N/A0.007%
4/23/2026Inspire Investing LLC5,036$531K0.0%-7.8%0.008%
4/22/2026 Pictet Asset Management Holding SA581,083$61.25M0.1%+9.7%0.911%
4/21/2026 Louisiana State Employees Retirement System26,100$2.75M0.0%N/A0.041%
4/16/2026SG Americas Securities LLC18,097$1.91M0.0%-9.5%0.028%
3/17/2026Rockefeller Capital Management L.P.3,292$288K0.0%+10.5%0.005%
2/26/2026Seven Fleet Capital Management LP8,000$699K0.5%N/A0.013%
2/19/2026Invesco Ltd.1,567,840$136.94M0.0%+56.2%2.508%
2/18/2026Vident Advisory LLC4,191$366K0.0%-17.3%0.007%
2/18/2026State of Tennessee Department of Treasury23,526$1.92M0.0%-11.2%0.038%
2/18/2026Mackenzie Financial Corp3,648$318K0.0%-10.2%0.006%
2/18/2026KVP Capital Advisors LP53,000$4.63M4.5%N/A0.085%
2/18/2026Virtus Investment Advisers LLC2,790$244K0.1%+38.1%0.004%
2/18/2026Wellington Management Group LLP3,171,423$276.99M0.1%+66.2%5.073%
2/18/2026SummitTX Capital L.P.42,266$3.69M0.1%+34.2%0.068%
2/18/2026RTW Investments LP5,059,053$441.86M4.4%-12.1%8.092%
2/18/2026Orbimed Advisors LLC21,700$1.90M0.0%N/A0.035%
2/18/2026Perceptive Advisors LLC1,350,425$117.95M2.1%+31.1%2.160%
2/18/2026Millennium Management LLC17,391$1.52M0.0%-86.4%0.028%
2/18/2026Inspire Investing LLC5,460$477K0.0%-21.3%0.009%
2/18/2026Janus Henderson Group PLC2,649,981$231.36M0.1%+140.7%4.239%
2/18/2026Gotham Asset Management LLC21,595$1.89M0.0%-2.7%0.035%
2/18/2026Elmind Capital LP38,000$3.32M1.0%N/A0.061%
2/18/2026Eversept Partners LP52,961$4.63M0.2%N/A0.085%
2/18/2026Commodore Capital LP450,000$39.30M2.6%-56.1%0.720%
2/18/2026Bamco Inc. NY8,300$725K0.0%N/A0.013%
2/17/2026Guggenheim Capital LLC31,096$2.72M0.0%+67.3%0.050%
2/17/2026ADAR1 Capital Management LLC1,049,168$91.63M6.7%+6.1%1.678%
2/17/2026AQR Capital Management LLC6,954$607K0.0%-18.9%0.011%
2/17/2026EFG International AG72,623$6.34M0.1%N/A0.116%
2/17/2026MPM Bioimpact LLC199,471$17.42M2.0%N/A0.319%
2/17/2026Jain Global LLC12,850$1.12M0.0%-13.5%0.021%
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2/17/2026Pentwater Capital Management LP50,000$4.37M0.0%N/A0.080%
2/17/2026Farallon Capital Management LLC6,144,006$536.62M2.5%-0.8%9.827%
2/17/2026Price T Rowe Associates Inc. MD1,400,738$122.34M0.0%+14.8%2.240%
2/17/2026Osaic Holdings Inc.4,201$367K0.0%+202.0%0.007%
2/17/2026Adage Capital Partners GP L.L.C.232,836$20.34M0.0%-67.6%0.372%
2/17/2026California State Teachers Retirement System48,033$4.20M0.0%+1.3%0.077%
2/17/2026Diadema Partners LP22,700$1.98M0.3%-55.7%0.036%
2/17/2026 Russell Investments Group Ltd.5,723$500K0.0%-3.4%0.009%
2/17/2026 Maryland State Retirement & Pension System8,603$751K0.0%+2.3%0.014%
2/17/2026State of Wisconsin Investment Board34,786$3.04M0.0%-15.0%0.056%


PTGX Institutional Ownership - Frequently Asked Questions

During the previous two years, 347 institutional investors and hedge funds held shares of Protagonist Therapeutics. The most heavily invested institutionals were Johnson & Johnson ($300.22B), BlackRock Inc. ($1.26B), Farallon Capital Management LLC ($536.62M), Vanguard Group Inc. ($472.83M), RTW Investments LP ($441.86M), Janus Henderson Group PLC ($304.87M), and State Street Corp ($279.46M).Learn more on Protagonist Therapeutics' institutional investors.

98.63% of Protagonist Therapeutics' stock is owned by institutional investors. Learn more on PTGX's institutional investor holdings.

Of the 314 institutional investors that purchased Protagonist Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($10.31M), Wellington Management Group LLP ($4.03M), Johnson & Johnson ($2.45M), Pacer Advisors Inc. ($1.88M), Janus Henderson Group PLC ($1.79M), State Street Corp ($1.64M), and BVF Inc. IL ($1.36M).

Institutional investors have bought a total of 35,913,278 shares in the last 24 months. This purchase volume represents approximately $3.39B in transactions.

Of the 124 institutional investors that sold Protagonist Therapeutics' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Deep Track Capital LP ($1.53M), Jefferies Financial Group Inc. ($819.02K), RTW Investments LP ($697.22K), Commodore Capital LP ($625K), UBS Group AG ($605.24K), Adage Capital Partners GP L.L.C. ($485.37K), and JPMorgan Chase & Co. ($471.68K).

Institutional investors have sold a total of 8,528,141 shares in the last 24 months. This volume of shares sold represents approximately $642.21M in transactions.


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Institutional ownership data for NASDAQ:PTGX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/7/2026. New 13F filings are added each quarter as they're published.
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