This undiscovered CBD play is on the verge of disrupting the industry
With recent health Canada approval they are poised to explode
Read more here

PRTA Insider Trading (Prothena)

Insider Ownership Percentage: 30.40%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $192,270.00

Prothena Insider Trading History Chart

Prothena Share Price & Price History

▲ +1.84 (8.72%)
As of 02/24/2021 01:00 AM ET
Days: 30 | 90 | 365
This undiscovered CBD play is on the verge of disrupting the industry
With recent health Canada approval they are poised to explode
Read more here

Prothena Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
2/18/2021Wagner M ZagoInsiderSell7,540$25.50$192,270.007,540  
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SEC Filings (Institutional Ownership Changes) for Prothena (NASDAQ:PRTA)

90.15% 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

Prothena Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in Company
2/23/2021Principal Financial Group Inc.24,978$0.30M0.0%+34.0%0.063%
2/19/2021JPMorgan Chase & Co.33,991$0.41M0.0%+129.8%0.085%
2/16/2021Orbimed Advisors LLC1,797,458$21.59M0.2%-49.3%4.503%
2/16/2021Squarepoint Ops LLC17,799$0.21M0.0%N/A0.045%
2/16/2021Endurant Capital Management LP151,820$1.82M0.7%-42.2%0.380%
2/16/2021Nuveen Asset Management LLC390,020$4.68M0.0%+2.1%0.977%
2/16/2021Virginia Retirement Systems ET AL14,500$0.17M0.0%-11.0%0.036%
2/16/2021ExodusPoint Capital Management LP15,692$0.19M0.0%-33.2%0.039%
2/13/2021American International Group Inc.17,884$0.22M0.0%-2.8%0.045%
2/12/2021The Manufacturers Life Insurance Company 19,109$0.23M0.0%+4.1%0.048%
2/12/2021Ikarian Capital LLC1,186,700$14.25M0.6%N/A2.973%
2/12/2021Credit Suisse AG35,883$0.43M0.0%-21.2%0.090%
2/12/2021Edgewood Management LLC25,000$0.30M0.0%N/A0.063%
2/12/2021Virtus ETF Advisers LLC23,175$0.28M0.1%-27.3%0.058%
2/11/2021Northern Trust Corp370,160$4.45M0.0%-4.3%0.927%
2/11/2021Barclays PLC17,209$0.21M0.0%-19.6%0.043%
2/11/2021Citigroup Inc.7,572$91K0.0%+160.5%0.019%
2/10/2021Rhumbline Advisers66,395$0.80M0.0%+8.3%0.166%
2/10/2021Renaissance Technologies LLC314,000$3.77M0.0%+18.4%0.787%
2/9/2021Wells Fargo & Company MN47,743$0.57M0.0%+31.2%0.120%
2/9/2021Bank of New York Mellon Corp139,522$1.68M0.0%-6.2%0.349%
2/9/2021ProShare Advisors LLC12,974$0.16M0.0%+27.2%0.032%
2/8/2021Alliancebernstein L.P.50,140$0.60M0.0%-8.9%0.126%
2/8/2021Russell Investments Group Ltd.92,656$1.11M0.0%-3.8%0.232%
2/5/2021BlackRock Inc.3,692,970$44.35M0.0%-0.9%9.251%
2/5/2021Aperio Group LLC33,293$0.40M0.0%-3.8%0.083%
2/5/2021SG Americas Securities LLC13,379$0.16M0.0%N/A0.034%
2/4/2021Los Angeles Capital Management LLC39,575$0.48M0.0%-5.0%0.099%
2/4/2021GSA Capital Partners LLP15,095$0.18M0.0%N/A0.038%
2/4/2021State of Wisconsin Investment Board43,100$0.52M0.0%-30.5%0.108%
2/3/2021Focused Wealth Management Inc12,361$0.15M0.0%-37.1%0.031%
1/27/2021HighMark Wealth Management LLC2,755$33K0.0%N/A0.007%
1/26/2021Pinnacle Associates Ltd.308,980$3.71M0.1%-6.7%0.774%
11/17/2020Tang Capital Management LLC178,688$1.79M0.3%-34.7%0.448%
11/17/2020Jane Street Group LLC23,592$0.24M0.0%-47.5%0.059%
11/16/2020Cubist Systematic Strategies LLC23,519$0.24M0.0%+97.9%0.059%
11/16/2020Great Point Partners LLC1,548,479$15.47M1.4%-25.7%3.879%
11/16/2020ExodusPoint Capital Management LP23,500$0.24M0.0%+88.2%0.059%
11/16/2020Lonestar Capital Management LLC216,400$2.16M0.4%-25.1%0.542%
11/13/2020Morgan Stanley88,283$0.88M0.0%-12.0%0.221%
11/13/2020Charles Schwab Investment Management Inc.182,961$1.83M0.0%-23.0%0.458%
11/13/2020Virtus ETF Advisers LLC31,875$0.32M0.2%-12.0%0.080%
11/12/2020JPMorgan Chase & Co.14,789$0.15M0.0%+7.7%0.037%
11/12/2020Massachusetts Financial Services Co. MA87,221$0.87M0.0%N/A0.218%
11/12/2020Virginia Retirement Systems ET AL16,300$0.16M0.0%+9.4%0.041%
11/10/2020State Street Corp1,233,451$12.32M0.0%-14.2%3.090%
11/9/2020Acadian Asset Management LLC210,017$2.10M0.0%-7.1%0.526%
11/6/2020BlackRock Inc.3,728,276$37.25M0.0%+22.8%9.341%
11/6/2020Trexquant Investment LP47,039$0.47M0.0%-13.1%0.118%
11/6/2020Aperio Group LLC34,622$0.35M0.0%+23.4%0.087%
11/6/2020Aigen Investment Management LP13,157$0.13M0.0%N/A0.033%
11/5/2020California Public Employees Retirement System69,684$0.70M0.0%+2.2%0.175%
11/5/2020Wells Fargo & Company MN36,387$0.36M0.0%-17.5%0.091%
10/30/2020BNP Paribas Arbitrage SA10,022$100K0.0%+79.9%0.025%
10/29/2020DekaBank Deutsche Girozentrale12,350$0.12M0.0%N/A0.031%
10/23/2020Pinnacle Associates Ltd.331,010$3.31M0.1%-3.5%0.829%
10/19/2020Focused Wealth Management Inc19,658$0.20M0.0%+8.8%0.049%
9/15/2020Two Sigma Advisers LP214,800$2.25M0.0%+5.3%0.538%
8/25/2020Nuveen Asset Management LLC360,771$3.77M0.0%-29.6%0.904%
8/20/2020Charles Schwab Investment Management Inc.237,588$2.49M0.0%-2.0%0.595%
8/17/2020Jane Street Group LLC44,900$0.47M0.0%N/A0.113%
8/14/2020Orbimed Advisors LLC3,544,475$37.08M0.5%+22.1%8.881%
8/14/2020Pinnacle Associates Ltd.342,911$3.59M0.1%-1.7%0.859%
8/14/2020Man Group plc67,323$0.70M0.0%-4.0%0.169%
8/14/2020Point72 Asset Management L.P.265,573$2.78M0.0%-48.5%0.665%
8/14/2020Verition Fund Management LLC103,934$1.09M0.0%+30.0%0.260%
8/14/2020PDT Partners LLC39,000$0.41M0.0%+81.4%0.098%
8/14/2020Bank of America Corp DE31,297$0.33M0.0%+65.2%0.078%
8/14/2020Artal Group S.A.370,000$3.87M0.1%+23.3%0.927%
8/13/2020FMR LLC1,957,749$20.48M0.0%-37.5%4.905%
8/12/2020Lonestar Capital Management LLC289,020$3.02M1.0%-15.0%0.724%
8/12/2020Bank of Montreal Can4,100$50K0.0%+178.5%0.010%
8/12/2020American International Group Inc.18,815$0.20M0.0%-20.9%0.047%
8/12/2020Bank of New York Mellon Corp159,549$1.67M0.0%-52.0%0.400%
8/12/2020Hudson Bay Capital Management LP206,555$2.16M0.0%+14.8%0.518%
8/12/2020Prudential Financial Inc.82,995$0.87M0.0%+4.1%0.208%
8/12/2020California Public Employees Retirement System68,184$0.71M0.0%-23.7%0.171%
8/11/2020Stevard LLC10,487$0.11M0.1%N/A0.026%
8/7/2020Rafferty Asset Management LLC11,517$0.12M0.0%N/A0.029%
8/7/2020Trexquant Investment LP54,141$0.57M0.0%N/A0.136%
8/7/2020New York State Common Retirement Fund27,769$0.29M0.0%-26.9%0.070%
8/5/2020Bessemer Group Inc.60,763$0.64M0.0%+96,349.2%0.152%
8/5/2020Virtus ETF Advisers LLC36,223$0.38M0.2%N/A0.091%
8/5/2020Russell Investments Group Ltd.111,734$1.17M0.0%+19.5%0.280%
8/5/2020Swiss National Bank57,900$0.61M0.0%-25.2%0.145%
8/3/2020ProShare Advisors LLC10,558$0.11M0.0%N/A0.026%
7/29/2020Campbell & CO Investment Adviser LLC37,046$0.39M0.5%N/A0.093%
7/20/2020SG Americas Securities LLC12,178$0.13M0.0%-26.3%0.031%
7/7/2020Diversified Trust Co12,331$0.13M0.0%N/A0.031%
6/19/2020State Street Corp1,053,448$11.27M0.0%+1.5%2.640%
5/27/2020Public Employees Retirement Association of Colorado10,984$0.12M0.0%+58.9%0.028%
5/15/2020Squarepoint Ops LLC28,023$0.30M0.0%-68.4%0.070%
5/15/2020Meeder Asset Management Inc.2,493$26K0.0%+1,429.4%0.006%
5/15/2020Invesco Ltd.30,410$0.33M0.0%-8.9%0.076%
5/15/2020Tudor Investment Corp Et Al21,723$0.23M0.0%+83.3%0.054%
5/15/2020Morgan Stanley106,571$1.14M0.0%+30.5%0.267%
5/15/2020Two Sigma Investments LP82,330$0.88M0.0%-44.0%0.206%
5/15/2020Two Sigma Advisers LP203,900$2.18M0.0%+1.4%0.511%
Data available starting January 2016

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Prothena logo
Prothena Corporation plc, a clinical-stage neuroscience company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing PRX002/RG7935 that is in Phase II clinical trial for treating Parkinson's disease and other related synucleinopathies; and PRX004, an antibody that is in Phase I clinical trial for the treatment of ATTR amyloidosis. Its discovery-stage programs include Tau for treating Alzheimer's disease, progressive supranuclear palsy, frontotemporal dementia, chronic traumatic encephalopathy, and other tauopathies; AÃ, or Amyloid Beta, a protein for the treatment of Alzheimer's disease; TDP-43 for amyotrophic lateral sclerosis and frontotemporal dementia; and other products for neurodegeneration. The company 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 alpha-synuclein; and a collaboration agreement with Bristol-Myers Squibb to develop antibodies. Prothena Corporation plc was founded in 2012 and is based in Dublin, Ireland.
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Today's Range

Now: $22.95

50 Day Range

MA: $15.74

52 Week Range

Now: $22.95


269,008 shs

Average Volume

473,820 shs

Market Capitalization

$916.19 million

P/E Ratio


Dividend Yield




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

Prothena's top insider shareholders include:
  1. Wagner M Zago (Insider)

Who are the major institutional investors of Prothena?

Prothena's top institutional shareholders include:
  1. BlackRock Inc. — 9.25%
  2. Orbimed Advisors LLC — 4.50%
  3. Ikarian Capital LLC — 2.97%
  4. Nuveen Asset Management LLC — 0.98%
  5. Northern Trust Corp — 0.93%
  6. Renaissance Technologies LLC — 0.79%

Which major investors are selling Prothena stock?

During the previous quarter, PRTA stock was sold by these institutional investors:
  1. Orbimed Advisors LLC
  2. Endurant Capital Management LP
  3. BlackRock Inc.
  4. Pinnacle Associates Ltd.
  5. State of Wisconsin Investment Board
  6. Northern Trust Corp
  7. Credit Suisse AG
  8. Bank of New York Mellon Corp

Which major investors are buying Prothena stock?

In the last quarter, PRTA stock was bought by institutional investors including:
  1. Ikarian Capital LLC
  2. Renaissance Technologies LLC
  3. Edgewood Management LLC
  4. JPMorgan Chase & Co.
  5. Squarepoint Ops LLC
  6. GSA Capital Partners LLP
  7. SG Americas Securities LLC
  8. Wells Fargo & Company MN
This undiscovered CBD play is on the verge of disrupting the industry
With recent health Canada approval they are poised to explode
Read more here