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PRTA Insider Trading

Insider Ownership Percentage: 28.20%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $525,950.00

Prothena Insider Trading History Chart

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

Skip ChartChart Data in Insider Trading History Table

Prothena Share Price & Price History

Current Price: $13.51
Price Change: ▼ Price Decrease of -0.5 (-3.57%)
As of 11/18/2024 01:00 AM ET

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

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

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/24/2024Karin L. WalkerCAOSell5,000$34.00$170,000.00View SEC Filing Icon  
12/20/2023Karin L. WalkerCAOSell5,000$37.19$185,950.00View SEC Filing Icon  
11/30/2023Karin L. WalkerCAOSell5,000$34.00$170,000.00View SEC Filing Icon  
10/25/2023Karin L. WalkerCAOSell5,000$41.04$205,200.00View SEC Filing Icon  
10/11/2023Brandon S. SmithCOOSell4,000$46.75$187,000.00View SEC Filing Icon  
10/4/2023Carol D. KarpinsiderSell5,000$46.62$233,100.00View SEC Filing Icon  
9/27/2023Michael J. MalecekinsiderSell5,000$47.38$236,900.00View SEC Filing Icon  
9/19/2023Karin L. WalkerCAOSell5,000$52.36$261,800.00View SEC Filing Icon  
9/13/2023Brandon S. SmithCOOSell4,000$55.49$221,960.00View SEC Filing Icon  
9/13/2023Hideki GarreninsiderSell2,000$55.48$110,960.00View SEC Filing Icon  
9/6/2023Carol D. KarpinsiderSell5,000$54.76$273,800.00View SEC Filing Icon  
8/30/2023Michael J. MalecekinsiderSell5,000$55.01$275,050.00View SEC Filing Icon  
8/18/2023Karin L. WalkerCAOSell5,000$57.18$285,900.00View SEC Filing Icon  
8/16/2023Brandon S. SmithCOOSell4,000$58.71$234,840.00View SEC Filing Icon  
8/16/2023Hideki GarreninsiderSell2,000$58.74$117,480.00View SEC Filing Icon  
8/2/2023Wagner M. ZagoinsiderSell4,000$67.05$268,200.00View SEC Filing Icon  
7/26/2023Michael J. MalecekinsiderSell5,000$62.33$311,650.00View SEC Filing Icon  
7/19/2023Karin L. WalkerCAOSell5,000$69.19$345,950.00View SEC Filing Icon  
7/12/2023Brandon S. SmithCOOSell4,000$67.51$270,040.00View SEC Filing Icon  
7/12/2023Hideki GarreninsiderSell2,000$67.51$135,020.00View SEC Filing Icon  
7/5/2023Carol D. KarpinsiderSell5,000$68.13$340,650.00View SEC Filing Icon  
7/3/2023Dennis J SelkoeDirectorSell5,000$67.43$337,150.002,845View SEC Filing Icon  
6/28/2023Michael J. MalecekinsiderSell5,000$69.82$349,100.00View SEC Filing Icon  
6/16/2023Hideki GarreninsiderSell7,331$74.00$542,494.00View SEC Filing Icon  
6/14/2023Brandon S. SmithCOOSell5,333$73.98$394,535.34View SEC Filing Icon  
6/14/2023Hideki GarreninsiderSell4,669$74.22$346,533.18View SEC Filing Icon  
6/7/2023Wagner M. ZagoinsiderSell19,000$71.06$1,350,140.00View SEC Filing Icon  
5/31/2023Michael J. MalecekinsiderSell5,000$64.64$323,200.00View SEC Filing Icon  
5/19/2023Karin L. WalkerCAOSell5,000$74.00$370,000.00View SEC Filing Icon  
5/17/2023Gene G KinneyCEOSell45,000$73.70$3,316,500.0012,793View SEC Filing Icon  
5/17/2023Tran NguyenCFOSell95,000$73.99$7,029,050.003,200View SEC Filing Icon  
5/3/2023Dennis J SelkoeDirectorSell15,000$57.00$855,000.002,845View SEC Filing Icon  
4/26/2023Michael J. MalecekinsiderSell5,000$53.46$267,300.00View SEC Filing Icon  
4/19/2023Karin L. WalkerCAOSell5,000$52.90$264,500.00View SEC Filing Icon  
3/29/2023Michael J. MalecekinsiderSell5,000$49.02$245,100.00View SEC Filing Icon  
3/20/2023Karin L. WalkerCAOSell5,000$47.72$238,600.00View SEC Filing Icon  
3/15/2023Karin L. WalkerCAOSell20,000$48.42$968,400.00View SEC Filing Icon  
3/15/2023Michael J. MalecekinsiderSell15,000$48.44$726,600.00View SEC Filing Icon  
3/15/2023Tran NguyenCFOSell10,000$48.43$484,300.003,200View SEC Filing Icon  
2/15/2023Tran NguyenCFOSell10,000$53.34$533,400.003,200View SEC Filing Icon  
1/18/2023Tran NguyenCFOSell10,000$55.53$555,300.003,200View SEC Filing Icon  
1/10/2023Shane CookeDirectorSell5,000$52.92$264,600.00View SEC Filing Icon  
1/5/2023Richard T CollierDirectorSell5,000$52.67$263,350.001,219View SEC Filing Icon  
1/3/2023Lars EkmanInsiderSell15,834$55.98$886,387.32243View SEC Filing Icon  
12/21/2022Tran NguyenCFOSell10,000$58.97$589,700.003,200View SEC Filing Icon  
12/12/2022Shane CookeDirectorSell5,000$61.04$305,200.00View SEC Filing Icon  
12/5/2022Richard T CollierDirectorSell5,000$62.07$310,350.001,219View SEC Filing Icon  
11/30/2022Michael J. MalecekinsiderSell5,000$62.28$311,400.00243View SEC Filing Icon  
11/23/2022Tran NguyenCFOSell10,000$61.09$610,900.003,200View SEC Filing Icon  
11/18/2022Karin L. WalkerCAOSell10,000$57.07$570,700.00View SEC Filing Icon  
11/10/2022Shane CookeDirectorSell5,000$56.17$280,850.00View SEC Filing Icon  
11/7/2022Richard T CollierDirectorSell5,000$55.62$278,100.001,219View SEC Filing Icon  
11/1/2022Lars EkmanInsiderSell15,833$62.88$995,579.04243View SEC Filing Icon  
10/27/2022Michael J. MalecekinsiderSell20,000$62.00$1,240,000.00View SEC Filing Icon  
10/24/2022Karin L. WalkerCAOSell20,000$57.23$1,144,600.00View SEC Filing Icon  
10/19/2022Tran NguyenCFOSell10,000$56.44$564,400.003,200View SEC Filing Icon  
10/10/2022Shane CookeDirectorSell5,000$55.91$279,550.00View SEC Filing Icon  
10/5/2022Richard T CollierDirectorSell5,000$57.92$289,600.001,219View SEC Filing Icon  
10/3/2022Hideki GarreninsiderSell4,000$60.90$243,600.00243View SEC Filing Icon  
9/28/2022Gene G KinneyCEOSell16,412$53.38$876,072.5612,793View SEC Filing Icon  
9/28/2022Lars EkmanInsiderSell31,666$48.09$1,522,817.94243View SEC Filing Icon  
9/28/2022Shane CookeDirectorSell10,000$48.09$480,900.001,219View SEC Filing Icon  
9/21/2022Gene G KinneyCEOSell2,720$32.02$87,094.4012,793View SEC Filing Icon  
9/21/2022Tran NguyenCFOSell10,000$30.75$307,500.003,200View SEC Filing Icon  
9/15/2022Hideki GarreninsiderSell4,000$30.00$120,000.00View SEC Filing Icon  
8/24/2022Tran NguyenCFOSell10,000$30.17$301,700.003,200View SEC Filing Icon  
8/17/2022Gene G KinneyCEOSell2,181$32.03$69,857.4312,793View SEC Filing Icon  
8/12/2022Gene G KinneyCEOSell20,284$32.16$652,333.4412,793View SEC Filing Icon  
8/10/2022Gene G KinneyCEOSell991$32.01$31,721.9112,793View SEC Filing Icon  
8/5/2022Gene G KinneyCEOSell21,506$32.83$706,041.9812,793View SEC Filing Icon  
8/1/2022Hideki GarreninsiderSell4,000$30.52$122,080.00View SEC Filing Icon  
7/27/2022Gene G KinneyCEOSell376$32.00$12,032.0012,793View SEC Filing Icon  
7/22/2022Tran NguyenCFOSell7,320$32.55$238,266.003,200View SEC Filing Icon  
7/20/2022Shane CookeDirectorSell15,000$32.90$493,500.00View SEC Filing Icon  
7/20/2022Tran NguyenCFOSell42,120$32.49$1,368,478.803,200View SEC Filing Icon  
7/6/2022Hideki GarreninsiderSell8,000$30.00$240,000.00View SEC Filing Icon  
5/5/2022Ecor1 Capital, LlcMajor ShareholderBuy1,062,736$29.02$30,840,598.7211,584,280View SEC Filing Icon  
4/11/2022Shane CookeDirectorSell5,000$35.08$175,400.00View SEC Filing Icon  
4/5/2022Richard T CollierDirectorSell5,000$39.41$197,050.001,219View SEC Filing Icon  
1/12/2022Ecor1 Capital, LlcMajor ShareholderBuy300,000$37.50$11,250,000.00View SEC Filing Icon  
1/3/2022Dennis J SelkoeDirectorSell5,000$47.45$237,250.00View SEC Filing Icon  
11/23/2021Karin L. WalkerCAOSell4,519$57.88$261,559.72View SEC Filing Icon  
See Full Table
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SEC Filings (Institutional Ownership Changes) for Prothena (NASDAQ:PRTA)

97.08% of Prothena 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 PRTA by year and by quarter.

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

Prothena Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/16/2024Geode Capital Management LLC963,479$16.12M0.0%-3.1%1.792%Search for SEC Filing on Google Icon
11/15/2024Barclays PLC95,222$1.59M0.0%+110.2%0.177%Search for SEC Filing on Google Icon
11/15/2024Orion Portfolio Solutions LLC17,531$0.29M0.0%+4.4%0.033%Search for SEC Filing on Google Icon
11/15/2024XTX Topco Ltd15,564$0.26M0.0%N/A0.029%Search for SEC Filing on Google Icon
11/15/2024Wellington Management Group LLP4,178,788$69.91M0.0%+14.8%7.770%Search for SEC Filing on Google Icon
11/15/2024State Street Corp1,674,909$28.02M0.0%-13.3%3.114%Search for SEC Filing on Google Icon
11/15/2024Systematic Financial Management LP8,125$0.14M0.0%-95.8%0.015%Search for SEC Filing on Google Icon
11/15/2024Janus Henderson Group PLC18,047$0.30M0.0%-98.2%0.034%Search for SEC Filing on Google Icon
11/14/2024PDT Partners LLC110,654$1.85M0.2%+7.7%0.206%Search for SEC Filing on Google Icon
11/14/2024UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC526,748$8.81M0.0%+1,122.9%0.979%Search for SEC Filing on Google Icon
11/13/2024BNP Paribas Financial Markets55,842$0.93M0.0%+44.6%0.104%Search for SEC Filing on Google Icon
11/13/2024FMR LLC8,066,983$134.96M0.0%+0.0%15.000%Search for SEC Filing on Google Icon
11/13/2024The Manufacturers Life Insurance Company 86,071$1.44M0.0%+3.8%0.160%Search for SEC Filing on Google Icon
11/13/2024Dynamic Technology Lab Private Ltd25,764$0.43M0.0%N/A0.048%Search for SEC Filing on Google Icon
11/12/2024Algert Global LLC72,961$1.22M0.0%-5.5%0.136%Search for SEC Filing on Google Icon
11/12/2024Charles Schwab Investment Management Inc.324,962$5.44M0.0%-0.7%0.604%Search for SEC Filing on Google Icon
11/9/2024Primecap Management Co. CA35,500$0.59M0.0%-2.7%0.066%Search for SEC Filing on Google Icon
11/9/2024Intech Investment Management LLC12,555$0.21M0.0%N/A0.023%Search for SEC Filing on Google Icon
11/8/2024Connor Clark & Lunn Investment Management Ltd.122,492$2.05M0.0%+8.6%0.228%Search for SEC Filing on Google Icon
11/5/2024GSA Capital Partners LLP28,941$0.48M0.0%N/A0.054%Search for SEC Filing on Google Icon
10/25/2024Pinnacle Associates Ltd.125,747$2.10M0.0%+2.3%0.234%Search for SEC Filing on Google Icon
10/25/2024China Universal Asset Management Co. Ltd.10,344$0.17M0.0%+63.7%0.019%Search for SEC Filing on Google Icon
10/11/2024Creative Planning20,907$0.35M0.0%N/A0.039%Search for SEC Filing on Google Icon
10/3/2024Duncan Williams Asset Management LLC48,749$0.82M0.4%N/A0.091%Search for SEC Filing on Google Icon
10/3/2024SG Americas Securities LLC14,087$0.24M0.0%-74.2%0.026%Search for SEC Filing on Google Icon
8/16/2024Systematic Financial Management LP193,763$4M0.1%+25.8%0.360%Search for SEC Filing on Google Icon
8/16/2024Algert Global LLC77,191$1.59M0.1%+59.7%0.144%Search for SEC Filing on Google Icon
8/15/2024Armistice Capital LLC1,560,000$32.20M0.4%+42.3%2.901%Search for SEC Filing on Google Icon
8/14/2024Profund Advisors LLC18,073$0.37M0.0%-61.4%0.034%Search for SEC Filing on Google Icon
8/13/2024Ensign Peak Advisors Inc21,643$0.45M0.0%+30.4%0.040%Search for SEC Filing on Google Icon
8/13/2024Thrivent Financial for Lutherans47,515$0.98M0.0%-4.1%0.088%Search for SEC Filing on Google Icon
8/13/2024DCF Advisers LLC107,500$2.22M1.1%+0.5%0.200%Search for SEC Filing on Google Icon
8/9/2024Renaissance Technologies LLC329,500$6.80M0.0%-15.4%0.613%Search for SEC Filing on Google Icon
8/9/2024Dimensional Fund Advisors LP861,584$17.78M0.0%-0.1%1.602%Search for SEC Filing on Google Icon
8/8/2024Federated Hermes Inc.43,861$0.91M0.0%N/A0.082%Search for SEC Filing on Google Icon
8/7/2024Headlands Technologies LLC1,675$35K0.0%-56.8%0.003%Search for SEC Filing on Google Icon
8/5/2024Arizona State Retirement System9,776$0.20M0.0%-11.6%0.018%Search for SEC Filing on Google Icon
8/3/2024TD Asset Management Inc100,694$2.08M0.0%-13.4%0.187%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers69,756$1.44M0.0%+9.9%0.130%Search for SEC Filing on Google Icon
7/31/2024Focused Wealth Management Inc20,129$0.42M0.1%+98.7%0.037%Search for SEC Filing on Google Icon
7/30/2024Pinnacle Associates Ltd.122,900$2.54M0.0%-1.9%0.229%Search for SEC Filing on Google Icon
7/30/2024Signaturefd LLC1,337$28K0.0%+182.1%0.002%Search for SEC Filing on Google Icon
7/29/2024Zurcher Kantonalbank Zurich Cantonalbank10,236$0.21M0.0%+13.1%0.019%Search for SEC Filing on Google Icon
7/26/2024Bank of New York Mellon Corp165,423$3.41M0.0%+13.4%0.308%Search for SEC Filing on Google Icon
7/12/2024SG Americas Securities LLC54,572$1.13M0.0%+226.4%0.101%Search for SEC Filing on Google Icon
5/28/2024Teachers Retirement System of The State of Kentucky14,039$0.35M0.0%+26.0%0.026%Search for SEC Filing on Google Icon
5/17/2024Artal Group S.A.1,001,360$24.80M0.6%+99.7%1.862%Search for SEC Filing on Google Icon
5/16/2024California State Teachers Retirement System40,442$1M0.0%-5.3%0.075%Search for SEC Filing on Google Icon
5/16/2024Janus Henderson Group PLC1,309,590$32.44M0.0%-35.7%2.436%Search for SEC Filing on Google Icon
5/15/2024First Light Asset Management LLC444,953$11.02M0.8%-59.1%0.828%Search for SEC Filing on Google Icon
5/15/2024Price T Rowe Associates Inc. MD4,201,771$104.08M0.0%-0.8%7.814%Search for SEC Filing on Google Icon
5/13/2024Seven Eight Capital LP41,120$1.02M0.1%-27.8%0.076%Search for SEC Filing on Google Icon
5/10/2024Vanguard Group Inc.1,125,283$27.87M0.0%+5.1%2.095%Search for SEC Filing on Google Icon
5/9/2024State Board of Administration of Florida Retirement System11,286$0.28M0.0%-5.3%0.021%Search for SEC Filing on Google Icon
5/8/2024Focused Wealth Management Inc10,129$0.25M0.0%+7,751.9%0.019%Search for SEC Filing on Google Icon
5/8/2024ProShare Advisors LLC11,346$0.28M0.0%+8.9%0.021%Search for SEC Filing on Google Icon
5/8/2024Headlands Technologies LLC3,881$96K0.0%N/A0.007%Search for SEC Filing on Google Icon
5/7/2024Susquehanna Fundamental Investments LLC13,818$0.34M0.0%N/A0.026%Search for SEC Filing on Google Icon
5/7/2024SG Americas Securities LLC16,720$0.41M0.0%-87.7%0.031%Search for SEC Filing on Google Icon
5/1/2024BNP Paribas Financial Markets32,253$0.80M0.0%-65.4%0.060%Search for SEC Filing on Google Icon
4/29/2024Principal Financial Group Inc.11,737$0.29M0.0%-62.1%0.022%Search for SEC Filing on Google Icon
4/29/2024China Universal Asset Management Co. Ltd.10,360$0.26M0.0%+67.0%0.019%Search for SEC Filing on Google Icon
4/29/2024HighMark Wealth Management LLC16,502$0.41M0.3%+124.5%0.031%Search for SEC Filing on Google Icon
4/26/2024Pinnacle Associates Ltd.125,264$3.10M0.0%-0.4%0.233%Search for SEC Filing on Google Icon
3/22/2024PNC Financial Services Group Inc.1,544$56K0.0%+265.9%0.003%Search for SEC Filing on Google Icon
3/5/2024Wellington Management Group LLP2,594,102$94.27M0.0%+21.1%4.829%Search for SEC Filing on Google Icon
2/16/2024Price T Rowe Associates Inc. MD4,237,351$153.99M0.0%+10.9%7.895%Search for SEC Filing on Google Icon
2/15/2024PFM Health Sciences LP189,744$6.90M0.4%-77.3%0.354%Search for SEC Filing on Google Icon
2/15/2024Granahan Investment Management LLC417,157$15.16M0.5%+19.9%0.777%Search for SEC Filing on Google Icon
2/15/2024Boxer Capital LLC665,000$24.17M1.2%+6.4%1.239%Search for SEC Filing on Google Icon
2/14/2024ADAR1 Capital Management LLC6,102$0.22M0.1%N/A0.011%Search for SEC Filing on Google Icon
2/14/2024First Light Asset Management LLC1,088,801$39.57M3.2%-27.1%2.029%Search for SEC Filing on Google Icon
2/14/2024Seven Eight Capital LP56,946$2.07M0.2%N/A0.106%Search for SEC Filing on Google Icon
2/14/2024Sectoral Asset Management Inc.46,777$1.70M0.7%-72.9%0.087%Search for SEC Filing on Google Icon
2/13/2024DCF Advisers LLC84,000$3.05M1.7%+1.3%0.157%Search for SEC Filing on Google Icon
2/13/2024Armistice Capital LLC278,000$10.10M0.1%N/A0.518%Search for SEC Filing on Google Icon
2/13/2024Rafferty Asset Management LLC207,419$7.54M0.0%+32.2%0.386%Search for SEC Filing on Google Icon
2/12/2024TD Asset Management Inc146,538$5.33M0.0%-15.1%0.273%Search for SEC Filing on Google Icon
2/9/2024Trexquant Investment LP67,683$2.46M0.1%+19.1%0.126%Search for SEC Filing on Google Icon
2/9/2024Dynamic Technology Lab Private Ltd26,476$0.96M0.1%N/A0.049%Search for SEC Filing on Google Icon
2/8/2024Thornburg Investment Management Inc.25,591$0.93M0.0%-9.5%0.048%Search for SEC Filing on Google Icon
2/7/2024Principal Financial Group Inc.30,973$1.13M0.0%+21.1%0.058%Search for SEC Filing on Google Icon
2/7/2024Dimensional Fund Advisors LP867,635$31.53M0.0%-21.3%1.617%Search for SEC Filing on Google Icon
2/7/2024Jump Financial LLC6,457$0.24M0.0%-89.8%0.012%Search for SEC Filing on Google Icon
2/7/2024Teacher Retirement System of Texas9,266$0.34M0.0%-17.5%0.017%Search for SEC Filing on Google Icon
2/7/2024E Fund Management Co. Ltd.11,096$0.40M0.0%+37.7%0.021%Search for SEC Filing on Google Icon
2/6/2024Charles Schwab Investment Management Inc.313,230$11.38M0.0%+1.5%0.584%Search for SEC Filing on Google Icon
2/6/2024Swiss National Bank79,200$2.88M0.0%-9.0%0.148%Search for SEC Filing on Google Icon
2/1/2024New York State Common Retirement Fund33,648$1.22M0.0%+8.6%0.063%Search for SEC Filing on Google Icon
2/1/2024Handelsbanken Fonder AB61,400$2.23M0.0%+4.2%0.114%Search for SEC Filing on Google Icon
1/30/2024HealthInvest Partners AB8,342$0.30M0.2%N/A0.016%Search for SEC Filing on Google Icon
1/30/2024Zurcher Kantonalbank Zurich Cantonalbank9,563$0.35M0.0%+28.1%0.018%Search for SEC Filing on Google Icon
1/30/2024Strs Ohio10,700$0.39M0.0%+55.1%0.020%Search for SEC Filing on Google Icon
1/25/2024Allspring Global Investments Holdings LLC1,947$71K0.0%-37.1%0.004%Search for SEC Filing on Google Icon
1/25/2024Nisa Investment Advisors LLC900$33K0.0%-40.4%0.002%Search for SEC Filing on Google Icon
1/24/2024Mirae Asset Global Investments Co. Ltd.27,751$1.01M0.0%+8.2%0.052%Search for SEC Filing on Google Icon
1/24/2024China Universal Asset Management Co. Ltd.6,203$0.23M0.0%+351.1%0.012%Search for SEC Filing on Google Icon
1/19/2024Pinnacle Associates Ltd.125,747$4.57M0.1%+0.6%0.234%Search for SEC Filing on Google Icon
1/12/2024SG Americas Securities LLC135,857$4.94M0.0%+46.9%0.253%Search for SEC Filing on Google Icon
12/18/2023Vanguard Group Inc.1,030,774$49.74M0.0%-1.0%1.921%Search for SEC Filing on Google Icon
Data available starting January 2016

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Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. The company is involved in developing birtamimab, an investigational humanized antibody that is in Phase III clinical trial for the treatment of AL amyloidosis; Prasinezumab, a humanized monoclonal antibody, for the treatment of Parkinson's disease and other related synucleinopathies which is in Phase IIb clinical trial; NNC6019 that is in Phase lI clinical trial for the treatment of ATTR amyloidosis; and BMS-986446 and PRX012, which is in Phase I clinical trial for the treatment of Alzheimer's disease. Its discovery and preclinical programs include PRX123, a dual Aß-Tau vaccine for the treatment and prevention of Alzheimer's disease; and PRX019 for the treatment of neurogenerative diseases, as well as TDP-43 for the treatment of amyotrophic lateral sclerosis. Prothena Corporation plc has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target a-synuclein, including prasinezumab; and a collaboration agreement with Bristol-Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. The company was incorporated in 2012 and is based in Dublin, Ireland.
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Today's Range

Now: $13.51
Low: $13.45
High: $14.16

50 Day Range

MA: $18.05
Low: $13.51
High: $22.11

52 Week Range

Now: $13.51
Low: $13.45
High: $41.54

Volume

680,537 shs

Average Volume

583,012 shs

Market Capitalization

$726.97 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.16

Who are the company insiders with the largest holdings of Prothena?

Prothena's top insider shareholders include:
  1. Gene G Kinney (CEO)
  2. Tran Nguyen (CFO)
  3. Dennis J Selkoe (Director)
  4. Richard T Collier (Director)
  5. Lars Ekman (Insider)
  6. Michael J Malecek (Insider)
  7. Brandon S Smith (COO)
  8. Carol D Karp (Insider)
  9. Hideki Garren (Insider)
  10. Karin L Walker (CAO)
  11. Shane Cooke (Director)
  12. Wagner M Zago (Insider)
Learn More about top insider investors at Prothena.

Who are the major institutional investors of Prothena?

Prothena's top institutional shareholders include:
  1. FMR LLC — 15.00%
  2. Wellington Management Group LLP — 7.77%
  3. State Street Corp — 3.11%
  4. Geode Capital Management LLC — 1.79%
  5. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC — 0.98%
  6. Charles Schwab Investment Management Inc. — 0.60%
Learn More about top institutional investors of Prothena stock.

Which major investors are selling Prothena stock?

During the previous quarter, PRTA stock was sold by these institutional investors:
  1. Janus Henderson Group PLC
  2. State Street Corp
  3. Systematic Financial Management LP
  4. SG Americas Securities LLC
  5. Geode Capital Management LLC
  6. Walleye Capital LLC
  7. Algert Global LLC
  8. Charles Schwab Investment Management Inc.

Which major investors are buying Prothena stock?

In the last quarter, PRTA stock was bought by institutional investors including:
  1. Wellington Management Group LLP
  2. UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
  3. Barclays PLC
  4. Duncan Williams Asset Management LLC
  5. GSA Capital Partners LLP
  6. Dynamic Technology Lab Private Ltd
  7. Creative Planning
  8. BNP Paribas Financial Markets
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