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Prothena (PRTA) Institutional Ownership

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Institutional Ownership Changes (13F Filings) for Prothena (NASDAQ:PRTA)

Current
Institutional Ownership
Percentage
97.08%
Number of
Institutional Buyers
(last 12 months)
83
Total
Institutional Inflows
(last 12 months)
$346.38M
Number of
Institutional Sellers
(last 12 months)
41
Total
Institutional Outflows
(last 12 months)
$135.68M
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PRTA Institutional Buying and Selling by Quarter

Prothena Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/22/2024PNC Financial Services Group Inc.1,544$56K0.0%+265.9%0.003%
3/5/2024Wellington Management Group LLP2,594,102$94.27M0.0%+21.1%4.829%
2/16/2024Price T Rowe Associates Inc. MD4,237,351$153.99M0.0%+10.9%7.895%
2/15/2024PFM Health Sciences LP189,744$6.90M0.4%-77.3%0.354%
2/15/2024Granahan Investment Management LLC417,157$15.16M0.5%+19.9%0.777%
2/15/2024Boxer Capital LLC665,000$24.17M1.2%+6.4%1.239%
2/14/2024ADAR1 Capital Management LLC6,102$222K0.1%N/A0.011%
2/14/2024First Light Asset Management LLC1,088,801$39.57M3.2%-27.1%2.029%
2/14/2024Seven Eight Capital LP56,946$2.07M0.2%N/A0.106%
2/14/2024Sectoral Asset Management Inc.46,777$1.70M0.7%-72.9%0.087%
2/13/2024DCF Advisers LLC84,000$3.05M1.7%+1.3%0.157%
2/13/2024Armistice Capital LLC278,000$10.10M0.1%N/A0.518%
2/13/2024Rafferty Asset Management LLC207,419$7.54M0.0%+32.2%0.386%
2/12/2024TD Asset Management Inc146,538$5.33M0.0%-15.1%0.273%
2/9/2024Trexquant Investment LP67,683$2.46M0.1%+19.1%0.126%
2/9/2024Dynamic Technology Lab Private Ltd26,476$962K0.1%N/A0.049%
2/8/2024Thornburg Investment Management Inc.25,591$930K0.0%-9.5%0.048%
2/7/2024Principal Financial Group Inc.30,973$1.13M0.0%+21.1%0.058%
2/7/2024Dimensional Fund Advisors LP867,635$31.53M0.0%-21.3%1.617%
2/7/2024Jump Financial LLC6,457$235K0.0%-89.8%0.012%
2/7/2024Teacher Retirement System of Texas9,266$337K0.0%-17.5%0.017%
2/7/2024E Fund Management Co. Ltd.11,096$403K0.0%+37.7%0.021%
2/6/2024Charles Schwab Investment Management Inc.313,230$11.38M0.0%+1.5%0.584%
2/6/2024Swiss National Bank79,200$2.88M0.0%-9.0%0.148%
2/1/2024New York State Common Retirement Fund33,648$1.22M0.0%+8.6%0.063%
2/1/2024Handelsbanken Fonder AB61,400$2.23M0.0%+4.2%0.114%
1/30/2024HealthInvest Partners AB8,342$303K0.2%N/A0.016%
1/30/2024Zurcher Kantonalbank Zurich Cantonalbank 9,563$348K0.0%+28.1%0.018%
1/30/2024Strs Ohio10,700$388K0.0%+55.1%0.020%
1/25/2024 Allspring Global Investments Holdings LLC1,947$71K0.0%-37.1%0.004%
1/25/2024Nisa Investment Advisors LLC900$33K0.0%-40.4%0.002%
1/24/2024Mirae Asset Global Investments Co. Ltd.27,751$1.01M0.0%+8.2%0.052%
1/24/2024China Universal Asset Management Co. Ltd.6,203$225K0.0%+351.1%0.012%
1/19/2024Pinnacle Associates Ltd.125,747$4.57M0.1%+0.6%0.234%
1/12/2024SG Americas Securities LLC135,857$4.94M0.0%+46.9%0.253%
12/18/2023Vanguard Group Inc.1,030,774$49.74M0.0%-1.0%1.921%
12/7/2023Hudson Bay Capital Management LP32,500$1.57M0.0%N/A0.061%
12/1/2023Wellington Management Group LLP2,141,647$103.33M0.0%-3.1%3.990%
11/15/2023Rock Springs Capital Management LP614,298$29.64M0.8%-18.5%1.145%
11/15/2023Sectoral Asset Management Inc.172,407$8.32M1.6%+13.5%0.321%
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11/15/2023Alps Advisors Inc.39,524$1.91M0.0%+1.9%0.074%
11/15/2023Affinity Asset Advisors LLC79,214$3.82M1.1%-20.8%0.148%
11/14/2023Corton Capital Inc.9,091$439K0.2%+20.7%0.017%
11/14/2023Avidity Partners Management LP382,305$18.45M0.7%-28.5%0.712%
11/14/2023Qube Research & Technologies Ltd84,653$4.09M0.0%+104.5%0.158%
11/14/2023Trexquant Investment LP56,843$2.74M0.1%N/A0.106%
11/14/2023Profund Advisors LLC26,634$1.29M0.1%+20.8%0.050%
11/13/2023Connor Clark & Lunn Investment Management Ltd.127,775$6.17M0.0%+16.0%0.238%
11/13/2023Algert Global LLC28,000$1.35M0.1%N/A0.052%
11/13/2023Northern Trust Corp409,847$19.78M0.0%-0.5%0.764%
11/13/2023Healthcare of Ontario Pension Plan Trust Fund30,500$1.47M0.0%N/A0.057%
11/13/2023Mariner LLC167,932$8.10M0.0%+24.3%0.313%
11/13/2023Silverarc Capital Management LLC26,629$1.29M0.4%-46.4%0.050%
11/13/2023Aigen Investment Management LP34,890$1.68M0.3%N/A0.065%
11/13/2023FMR LLC8,030,290$387.46M0.0%+1.5%14.962%
11/13/2023Rafferty Asset Management LLC156,840$7.57M0.0%+31.2%0.292%
11/13/2023E Fund Management Co. Ltd.8,059$389K0.0%+25.4%0.015%
11/9/2023Rhumbline Advisers62,451$3.01M0.0%+2.7%0.116%
11/9/2023Deutsche Bank AG22,613$1.09M0.0%+14.5%0.042%
11/9/2023Citigroup Inc.67,930$3.28M0.0%+42.9%0.127%
11/9/2023Headlands Technologies LLC1,531$74K0.0%N/A0.003%
11/9/2023UBS Group AG45,252$2.18M0.0%+102.2%0.084%
11/8/2023State of New Jersey Common Pension Fund D45,952$2.22M0.0%+27.4%0.086%
11/8/2023Charles Schwab Investment Management Inc.308,537$14.89M0.0%-1.3%0.576%
11/8/2023Swiss National Bank87,000$4.20M0.0%+1.3%0.163%
11/8/2023Moody Aldrich Partners LLC23,904$1.15M0.2%-36.4%0.045%
11/8/2023Oppenheimer & Co. Inc.7,908$382K0.0%+3.9%0.015%
11/7/2023Barclays PLC86,035$4.15M0.0%+26.9%0.161%
11/7/2023Fox Run Management L.L.C.9,617$464K0.1%N/A0.018%
11/7/2023Jump Financial LLC63,117$3.05M0.1%+167.1%0.118%
11/6/2023Victory Capital Management Inc.8,781$424K0.0%-66.6%0.016%
11/2/2023Principal Financial Group Inc.25,582$1.23M0.0%-65.6%0.048%
10/31/2023Teacher Retirement System of Texas11,231$542K0.0%+4.9%0.021%
10/31/2023Jennison Associates LLC55,579$2.68M0.0%+12.9%0.104%
10/31/2023China Universal Asset Management Co. Ltd.1,375$66K0.0%+99.0%0.003%
10/27/2023 Allspring Global Investments Holdings LLC3,096$149K0.0%+58.3%0.006%
10/27/2023TD Asset Management Inc172,682$8.33M0.0%+93.1%0.323%
10/26/2023Mirae Asset Global Investments Co. Ltd.25,652$1.24M0.0%+14.4%0.048%
10/26/2023Strs Ohio6,900$332K0.0%-46.9%0.013%
10/25/2023Zurcher Kantonalbank Zurich Cantonalbank7,464$360K0.0%+12.0%0.014%
10/24/2023Bank of New York Mellon Corp499,382$24.10M0.0%-2.9%0.933%
10/24/2023 Raymond James & Associates8,167$394K0.0%+98.4%0.015%
10/24/2023Pinnacle Associates Ltd.125,006$6.03M0.1%-4.2%0.234%
10/13/2023SG Americas Securities LLC92,494$4.46M0.1%+2,501.8%0.173%
9/21/2023Barclays PLC67,812$4.63M0.0%+5.0%0.127%
8/24/2023Perceptive Advisors LLC184,615$12.61M0.4%-22.3%0.345%
8/21/2023Affinity Asset Advisors LLC100,000$6.83M2.4%N/A0.187%
8/15/2023Silverarc Capital Management LLC49,721$3.40M1.1%N/A0.093%
8/14/2023NinePointTwo Capital LLC3,741$255K0.1%-34.8%0.007%
8/14/2023Maple Rock Capital Partners Inc.234,584$16.02M1.3%-20.1%0.438%
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8/14/2023West Tower Group LLC659$45K0.0%N/A0.001%
8/14/2023UniSuper Management Pty Ltd110,884$7.57M0.1%N/A0.207%
8/14/2023Prosight Management LP120,000$8.19M2.5%-73.2%0.224%
8/14/2023Granahan Investment Management LLC295,057$20.15M0.6%+26.8%0.551%
8/11/2023Renaissance Technologies LLC323,800$22.11M0.0%-20.5%0.605%
8/11/2023Ameritas Investment Partners Inc.3,423$234K0.0%+8.9%0.006%
8/11/2023Harvest Investment Services LLC11,772$804K0.5%+8.8%0.022%
8/11/2023Sectoral Asset Management Inc.151,848$10.37M1.7%+23.7%0.284%
8/11/2023The Manufacturers Life Insurance Company65,410$4.47M0.0%+14.8%0.122%
8/11/2023Schroder Investment Management Group3,998$280K0.0%N/A0.007%
(Data available from 1/1/2016 forward)

PRTA Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of PRTA shares?

During the previous two years, 140 institutional investors and hedge funds held shares of Prothena. The most heavily invested institutionals were FMR LLC ($387.46M), Price T Rowe Associates Inc. MD ($153.99M), Palo Alto Investors LP ($100.03M), Wellington Management Group LLP ($94.27M), Geode Capital Management LLC ($57.25M), Vanguard Group Inc. ($49.74M), and First Light Asset Management LLC ($39.57M).Learn more on PRTA's institutional investors.

What percentage of Prothena stock is owned by institutional investors?

97.08% of Prothena stock is owned by institutional investors. Learn more on PRTA's institutional investor holdings.

Which institutional investors have been buying Prothena stock?

Of the 123 institutional investors that purchased Prothena stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: FMR LLC ($3.18M), Avidity Partners Management LP ($986K), Wellington Management Group LLP ($953.64K), Price T Rowe Associates Inc. MD ($417.34K), Bank of New York Mellon Corp ($377.24K), Federated Hermes Inc. ($345.63K), and Renaissance Technologies LLC ($291.80K).

How much institutional buying is happening at Prothena?

Institutional investors have bought a total of 11,450,272 shares in the last 24 months. This purchase volume represents approximately $567.19M in transactions.

Which Prothena major shareholders have been selling company stock?

Of the 68 institutional investors that sold Prothena stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Price T Rowe Associates Inc. MD ($2.98M), First Light Asset Management LLC ($832.25K), PFM Health Sciences LP ($646.83K), Dimensional Fund Advisors LP ($563.91K), Prosight Management LP ($343.63K), Renaissance Technologies LLC ($294.60K), and Nuveen Asset Management LLC ($232.72K).

How much institutional selling is happening at Prothena?

Institutional investors have sold a total of 8,096,069 shares in the last 24 months. This volume of shares sold represents approximately $441.26M in transactions.


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This page (NASDAQ:PRTA) was last updated on 4/24/2024 by MarketBeat.com Staff

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