PTGX Insider Trading

Insider Ownership Percentage: 5.19%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $49,489,603.07

Protagonist Therapeutics Insider Trading History Chart

This chart shows the insider buying and selling history at Protagonist Therapeutics by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Protagonist Therapeutics Share Price & Price History

Current Price: $112.86
Price Change: Price Increase of +1.42 (1.27%)
As of 06/18/2026 04:00 PM ET

This chart shows the closing price history over time for PTGX up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Protagonist Therapeutics Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/10/2026William D. WaddillDirectorSell9,000$107.68$969,120.007,825View SEC Filing Icon  
5/29/2026William D. WaddillDirectorSell9,000$99.64$896,760.007,825View SEC Filing Icon  
5/12/2026Dinsesh V. PatelCEOSell75,000$100.12$7,509,000.00523,478View SEC Filing Icon  
5/8/2026Bryan GiraudoDirectorSell5,130$100.00$513,000.0012,695View SEC Filing Icon  
5/8/2026Bryan GiraudoDirectorSell6,000$100.00$600,000.0031,825View SEC Filing Icon  
5/7/2026Bryan GiraudoDirectorSell36,000$100.14$3,605,040.0027,825View SEC Filing Icon  
5/7/2026Bryan GiraudoDirectorSell12,000$100.07$1,200,840.006,000View SEC Filing Icon  
4/20/2026Asif AliCFOSell1,750$105.47$184,572.5059,003View SEC Filing Icon  
3/26/2026Arturo MolinaInsiderSell15,000$104.79$1,571,850.0084,115View SEC Filing Icon  
3/26/2026Asif AliCFOSell24,765$104.24$2,581,503.6060,753View SEC Filing Icon  
3/26/2026Harold E SelickDirectorSell24,000$105.00$2,520,000.0060,845View SEC Filing Icon  
3/25/2026Dinsesh V. PatelCEOSell54,641$101.00$5,518,741.00524,938View SEC Filing Icon  
3/24/2026Dinsesh V. PatelCEOSell59$101.00$5,959.00524,938View SEC Filing Icon  
2/17/2026Lewis T WilliamsDirectorSell18,000$82.42$1,483,560.007,825View SEC Filing Icon  
2/6/2026William D. WaddillDirectorSell20,000$83.68$1,673,600.007,825View SEC Filing Icon  
1/27/2026Arturo MolinaInsiderSell5,000$82.00$410,000.0084,115View SEC Filing Icon  
1/27/2026Asif AliCFOSell46,203$83.13$3,840,855.3960,320View SEC Filing Icon  
1/27/2026Dinsesh V. PatelCEOSell4,068$83.19$338,416.92574,505View SEC Filing Icon  
1/26/2026Dinsesh V. PatelCEOSell24,890$84.03$2,091,506.70574,505View SEC Filing Icon  
1/23/2026Arturo MolinaInsiderSell13,151$82.42$1,083,905.4284,115View SEC Filing Icon  
1/23/2026Dinsesh V. PatelCEOSell19,315$84.59$1,633,855.85574,505View SEC Filing Icon  
1/20/2026Arturo MolinaInsiderSell9,514$82.48$784,714.7297,266View SEC Filing Icon  
1/20/2026Asif AliCFOSell8,588$82.48$708,338.2478,077View SEC Filing Icon  
1/20/2026Dinsesh V. PatelCEOSell34,438$82.48$2,840,446.24580,505View SEC Filing Icon  
10/10/2025William D. WaddillDirectorSell12,000$81.62$979,440.005,130View SEC Filing Icon  
9/22/2025William D. WaddillDirectorSell4,000$64.25$257,000.005,130View SEC Filing Icon  
8/27/2025William D. WaddillDirectorSell4,000$59.25$237,000.009,130View SEC Filing Icon  
7/25/2025Dinsesh V. PatelCEOSell10,415$54.78$570,533.70520,603View SEC Filing Icon  
7/23/2025Dinsesh V. PatelCEOSell17,520$54.79$959,920.80531,018View SEC Filing Icon  
7/22/2025Dinsesh V. PatelCEOSell22,065$55.05$1,214,678.25548,538View SEC Filing Icon  
7/21/2025Dinsesh V. PatelCEOSell12,859$54.86$705,444.74570,603View SEC Filing Icon  
6/10/2025Arturo MolinaInsiderSell10,000$57.03$570,300.0083,892View SEC Filing Icon  
4/22/2025Asif AliCFOSell1,756$46.00$80,776.0061,065View SEC Filing Icon  
3/17/2025William D. WaddillDirectorSell4,000$54.25$217,000.0013,130View SEC Filing Icon  
3/13/2025Arturo MolinaInsiderSell30,514$55.74$1,700,850.3683,892View SEC Filing Icon  
3/12/2025Asif AliCFOSell24,903$58.73$1,462,553.1962,821View SEC Filing Icon  
2/19/2025Dinsesh V. PatelCEOSell5,359$38.18$204,606.62540,260View SEC Filing Icon  
11/27/2024Arturo MolinaInsiderSell26,000$44.70$1,162,200.0046,444View SEC Filing Icon  
11/25/2024Dinsesh V. PatelCEOSell78,520$46.96$3,687,299.20435,208View SEC Filing Icon  
11/25/2024Suneel GuptaInsiderSell103,437$46.04$4,762,239.48256,174View SEC Filing Icon  
11/15/2024Arturo MolinaInsiderSell1,906$40.98$78,107.8846,444View SEC Filing Icon  
9/11/2024Asif AliCFOSell14,203$44.49$631,891.4734,960View SEC Filing Icon  
9/10/2024William D. WaddillDirectorSell8,000$45.00$360,000.0012,000View SEC Filing Icon  
7/24/2024William D. WaddillDirectorSell8,000$40.00$320,000.0012,000View SEC Filing Icon  
6/7/2024Dinsesh V. PatelCEOSell35,000$35.19$1,231,650.00515,415View SEC Filing Icon  
6/7/2024William D. WaddillDirectorSell8,000$35.00$280,000.0012,000View SEC Filing Icon  
4/18/2024Asif AliCFOSell1,234$25.11$30,985.7437,163View SEC Filing Icon  
4/1/2024Dinsesh V. PatelCEOSell25,000$28.31$707,750.00549,590View SEC Filing Icon  
3/1/2024Asif AliCFOSell14,248$32.24$459,355.5238,397View SEC Filing Icon  
3/1/2024Dinsesh V. PatelCEOSell30,000$31.62$948,600.00574,590View SEC Filing Icon  
3/1/2024William D. WaddillDirectorSell12,975$31.34$406,636.5012,000View SEC Filing Icon  
1/9/2024Suneel GuptaInsiderSell5,000$25.00$125,000.00187,567View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Protagonist Therapeutics (NASDAQ:PTGX)

98.63% of Protagonist Therapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PTGX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Protagonist Therapeutics Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/18/2026Pacer Advisors Inc.4,916$0.52M0.0%N/A0.008%Search for SEC Filing on Google Icon
6/16/2026Empowered Funds LLC2,321$0.25M0.0%N/A0.004%Search for SEC Filing on Google Icon
6/4/2026Seven Fleet Capital Management LP4,000$0.42M0.1%-50.0%0.006%Search for SEC Filing on Google Icon
5/29/2026Perceptive Advisors LLC1,230,879$129.74M2.5%-8.9%1.914%Search for SEC Filing on Google Icon
5/26/2026Glenmede Trust Co. NA9,235$0.97M0.0%-27.6%0.014%Search for SEC Filing on Google Icon
5/26/2026Axiom Investment Management LLC2,000$0.21M0.2%N/A0.003%Search for SEC Filing on Google Icon
5/22/2026Segall Bryant & Hamill LLC212,714$22.42M0.3%+64.8%0.331%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE1,295,434$136.54M0.0%+49.3%2.014%Search for SEC Filing on Google Icon
5/19/2026Stempoint Capital LP72,577$7.65M1.5%+22.1%0.113%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC2,891,527$304.87M0.1%+9.1%4.496%Search for SEC Filing on Google Icon
5/18/2026ADAR1 Capital Management LLC994,119$104.78M6.2%-5.2%1.546%Search for SEC Filing on Google Icon
5/18/2026Amundi4,113$0.43M0.0%N/A0.006%Search for SEC Filing on Google Icon
5/18/2026EverSource Wealth Advisors LLC911$96K0.0%+63.0%0.001%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System58,677$6.19M0.0%+22.2%0.091%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada1,599$0.17M0.0%-49.8%0.002%Search for SEC Filing on Google Icon
5/18/2026Rubric Capital Management LP427,998$45.11M0.5%N/A0.666%Search for SEC Filing on Google Icon
5/18/2026Eagle Health Investments LP179,322$18.90M3.3%+213.0%0.279%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC2,321$0.25M0.0%N/A0.004%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 127,818$13.47M0.0%+12.8%0.199%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP6,437$0.68M0.0%+30.1%0.010%Search for SEC Filing on Google Icon
5/16/2026Orbimed Advisors LLC42,100$4.44M0.1%+94.0%0.065%Search for SEC Filing on Google Icon
5/15/2026Weiss Asset Management LP9,780$1.03M0.0%N/A0.015%Search for SEC Filing on Google Icon
5/15/2026Granahan Investment Management LLC27,391$2.89M0.1%N/A0.043%Search for SEC Filing on Google Icon
5/14/2026Gabelli Funds LLC3,229$0.34M0.0%N/A0.005%Search for SEC Filing on Google Icon
5/14/2026Atika Capital Management LLC62,100$6.55M0.8%-27.8%0.097%Search for SEC Filing on Google Icon
5/14/2026Knott David M Jr63,000$6.64M3.9%-13.7%0.098%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.83,197$8.77M0.0%+122.8%0.129%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP87,858$9.26M0.0%+89.1%0.137%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.3,998$0.42M0.0%+35.1%0.006%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP508,103$53.54M0.0%+22.6%0.790%Search for SEC Filing on Google Icon
5/7/2026AlphaCentric Advisors LLC9,040$0.95M1.0%+5.7%0.014%Search for SEC Filing on Google Icon
5/7/2026SEB Asset Management AB232,416$24.50M0.1%N/A0.361%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank98,900$10.42M0.0%+0.7%0.154%Search for SEC Filing on Google Icon
5/6/2026Jennison Associates LLC1,072,011$112.99M0.1%+223.7%1.667%Search for SEC Filing on Google Icon
5/6/2026Assetmark Inc.46,442$4.90M0.0%+16,195.4%0.072%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC29,916$3.10M0.0%+650.7%0.047%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp341,465$35.99M0.0%-2.5%0.531%Search for SEC Filing on Google Icon
5/5/2026Illinois Municipal Retirement Fund28,596$3.01M0.0%-8.5%0.044%Search for SEC Filing on Google Icon
5/4/2026Calamos Advisors LLC23,473$2.47M0.0%N/A0.036%Search for SEC Filing on Google Icon
5/4/2026Bleakley Financial Group LLC12,802$1.35M0.0%N/A0.020%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.367,822$38.77M0.0%+5.7%0.572%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp13,202$1.39M0.0%+3,937.3%0.021%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC1,907$0.20M0.0%N/A0.003%Search for SEC Filing on Google Icon
4/30/2026Sumitomo Mitsui Trust Group Inc.2,760$0.29M0.0%+7.8%0.004%Search for SEC Filing on Google Icon
4/29/2026Burney Co.3,179$0.34M0.0%-13.6%0.005%Search for SEC Filing on Google Icon
4/28/2026Abel Hall LLC4,258$0.45M0.1%N/A0.007%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System47,424$5M0.0%-3.9%0.074%Search for SEC Filing on Google Icon
4/25/2026Strs Ohio15,400$1.62M0.0%-3.1%0.024%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH4,286$0.45M0.0%N/A0.007%Search for SEC Filing on Google Icon
4/23/2026Inspire Investing LLC5,036$0.53M0.0%-7.8%0.008%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA581,083$61.25M0.1%+9.7%0.911%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System26,100$2.75M0.0%N/A0.041%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC18,097$1.91M0.0%-9.5%0.028%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.3,292$0.29M0.0%+10.5%0.005%Search for SEC Filing on Google Icon
2/26/2026Seven Fleet Capital Management LP8,000$0.70M0.5%N/A0.013%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.1,567,840$136.94M0.0%+56.2%2.508%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC4,191$0.37M0.0%-17.3%0.007%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury23,526$1.92M0.0%-11.2%0.038%Search for SEC Filing on Google Icon
2/18/2026Mackenzie Financial Corp3,648$0.32M0.0%-10.2%0.006%Search for SEC Filing on Google Icon
2/18/2026KVP Capital Advisors LP53,000$4.63M4.5%N/A0.085%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC2,790$0.24M0.1%+38.1%0.004%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP3,171,423$276.99M0.1%+66.2%5.073%Search for SEC Filing on Google Icon
2/18/2026SummitTX Capital L.P.42,266$3.69M0.1%+34.2%0.068%Search for SEC Filing on Google Icon
2/18/2026RTW Investments LP5,059,053$441.86M4.4%-12.1%8.092%Search for SEC Filing on Google Icon
2/18/2026Orbimed Advisors LLC21,700$1.90M0.0%N/A0.035%Search for SEC Filing on Google Icon
2/18/2026Perceptive Advisors LLC1,350,425$117.95M2.1%+31.1%2.160%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC17,391$1.52M0.0%-86.4%0.028%Search for SEC Filing on Google Icon
2/18/2026Inspire Investing LLC5,460$0.48M0.0%-21.3%0.009%Search for SEC Filing on Google Icon
2/18/2026Janus Henderson Group PLC2,649,981$231.36M0.1%+140.7%4.239%Search for SEC Filing on Google Icon
2/18/2026Gotham Asset Management LLC21,595$1.89M0.0%-2.7%0.035%Search for SEC Filing on Google Icon
2/18/2026Elmind Capital LP38,000$3.32M1.0%N/A0.061%Search for SEC Filing on Google Icon
2/18/2026Eversept Partners LP52,961$4.63M0.2%N/A0.085%Search for SEC Filing on Google Icon
2/18/2026Commodore Capital LP450,000$39.30M2.6%-56.1%0.720%Search for SEC Filing on Google Icon
2/18/2026Bamco Inc. NY8,300$0.73M0.0%N/A0.013%Search for SEC Filing on Google Icon
2/17/2026Guggenheim Capital LLC31,096$2.72M0.0%+67.3%0.050%Search for SEC Filing on Google Icon
2/17/2026ADAR1 Capital Management LLC1,049,168$91.63M6.7%+6.1%1.678%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC6,954$0.61M0.0%-18.9%0.011%Search for SEC Filing on Google Icon
2/17/2026EFG International AG72,623$6.34M0.1%N/A0.116%Search for SEC Filing on Google Icon
2/17/2026MPM Bioimpact LLC199,471$17.42M2.0%N/A0.319%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC12,850$1.12M0.0%-13.5%0.021%Search for SEC Filing on Google Icon
2/17/2026Pentwater Capital Management LP50,000$4.37M0.0%N/A0.080%Search for SEC Filing on Google Icon
2/17/2026Farallon Capital Management LLC6,144,006$536.62M2.5%-0.8%9.827%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD1,400,738$122.34M0.0%+14.8%2.240%Search for SEC Filing on Google Icon
2/17/2026Osaic Holdings Inc.4,201$0.37M0.0%+202.0%0.007%Search for SEC Filing on Google Icon
2/17/2026Adage Capital Partners GP L.L.C.232,836$20.34M0.0%-67.6%0.372%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System48,033$4.20M0.0%+1.3%0.077%Search for SEC Filing on Google Icon
2/17/2026Diadema Partners LP22,700$1.98M0.3%-55.7%0.036%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.5,723$0.50M0.0%-3.4%0.009%Search for SEC Filing on Google Icon
2/17/2026Maryland State Retirement & Pension System8,603$0.75M0.0%+2.3%0.014%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board34,786$3.04M0.0%-15.0%0.056%Search for SEC Filing on Google Icon
2/17/2026Captrust Financial Advisors2,732$0.24M0.0%-17.5%0.004%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada3,183$0.28M0.0%-95.5%0.005%Search for SEC Filing on Google Icon
2/17/2026Persistent Asset Partners Ltd7,908$0.69M0.3%-32.9%0.013%Search for SEC Filing on Google Icon
2/16/2026Truvestments Capital LLC1,161$0.10M0.0%+60.8%0.002%Search for SEC Filing on Google Icon
2/16/2026Panagora Asset Management Inc.125,384$10.95M0.0%-15.7%0.201%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC7,620$0.67M0.0%-43.8%0.012%Search for SEC Filing on Google Icon
2/16/2026NEXTBio Capital Management LP229,619$20.06M11.8%N/A0.367%Search for SEC Filing on Google Icon
2/16/2026Fieldview Capital Management LLC5,841$0.51M0.1%N/A0.009%Search for SEC Filing on Google Icon
2/16/2026Kennedy Capital Management LLC221,444$19.34M0.4%+6.2%0.354%Search for SEC Filing on Google Icon
2/16/2026Dymon Asia Capital Singapore PTE. LTD.10,000$0.87M0.1%N/A0.016%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Protagonist Therapeutics logo
Protagonist Therapeutics, Inc., a biopharmaceutical company, develops peptide-based drugs for hematology and blood disorders, and inflammatory and immunomodulatory diseases. It is developing Rusfertide (PTG-300), an injectable hepcidin mimetic that completed phase 2 clinical trials for the treatment of polycythemia vera and other blood disorders; and JNJ-2113, an orally delivered investigational drug to block biological pathways that completed phase 2b clinical trials for the treatment of moderate-to-severe plaque psoriasis; and PN-943, an orally delivered, gut-restricted alpha 4 beta 7 specific integrin antagonist completed a phase 2 clinical trials in patients with moderate to severe ulcerative colitis. The company has a license and collaboration agreement with Takeda to commercialize rusfertide; and JNJ Innovative Medicines to co-develop Interleukin-23 receptor antagonist compound JNJ-2113. Protagonist Therapeutics, Inc. was incorporated in 2006 and is headquartered in Newark, California.
Read More on Protagonist Therapeutics

Today's Range

Now: $112.86
Low: $111.17
High: $114.49

50 Day Range

MA: $102.38
Low: $93.19
High: $112.86

52 Week Range

Now: $112.86
Low: $49.38
High: $114.49

Volume

1,524,436 shs

Average Volume

569,565 shs

Market Capitalization

$7.26 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.85

Who are the company insiders with the largest holdings of Protagonist Therapeutics?

Protagonist Therapeutics' top insider investors include:
  1. Dinesh V Ph D Patel (CEO)
  2. Suneel Gupta (EVP)
  3. Suneel Gupta (Insider)
  4. Dinesh V Ph D Patel (Insider)
  5. Arturo Md Molina (Insider)
  6. Asif Ali (CFO)
  7. Harold E Selick (Director)
  8. David Y Liu (Insider)
  9. Richard S Shames (Insider)
  10. Bryan Giraudo (Director)
Learn More about top insider investors at Protagonist Therapeutics.

Who are the major institutional investors of Protagonist Therapeutics?

Protagonist Therapeutics' top institutional shareholders include:
  1. Janus Henderson Group PLC — 4.50%
  2. Bank of America Corp DE — 2.01%
  3. Perceptive Advisors LLC — 1.91%
  4. Jennison Associates LLC — 1.67%
  5. ADAR1 Capital Management LLC — 1.55%
  6. Pictet Asset Management Holding SA — 0.91%
Learn More about top institutional investors of Protagonist Therapeutics stock.

Which major investors are selling Protagonist Therapeutics stock?

Within the previous quarter, PTGX stock was sold by these institutional investors:
  1. Perceptive Advisors LLC
  2. ADAR1 Capital Management LLC
  3. Atika Capital Management LLC
  4. Knott David M Jr
  5. Bank of New York Mellon Corp
  6. Seven Fleet Capital Management LP
  7. Glenmede Trust Co. NA
  8. Illinois Municipal Retirement Fund
During the previous year, company insiders that have sold Protagonist Therapeutics company stock include:
  1. Dinesh V Ph D Patel (CEO)
  2. Arturo Md Molina (Insider)
  3. Asif Ali (CFO)
  4. Harold E Selick (Director)
  5. Bryan Giraudo (Director)
  6. William D Waddill (Director)
  7. Lewis T Williams (Director)
Learn More investors selling Protagonist Therapeutics stock.

Which major investors are buying Protagonist Therapeutics stock?

Within the last quarter, PTGX stock was bought by institutional investors including:
  1. Jennison Associates LLC
  2. Rubric Capital Management LP
  3. Bank of America Corp DE
  4. Janus Henderson Group PLC
  5. SEB Asset Management AB
  6. Eagle Health Investments LP
  7. Dimensional Fund Advisors LP
  8. Segall Bryant & Hamill LLC