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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)
80
Total
Institutional Inflows
(last 12 months)
$179.41M
Number of
Institutional Sellers
(last 12 months)
45
Total
Institutional Outflows
(last 12 months)
$173.43M
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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
5/28/2024Teachers Retirement System of The State of Kentucky14,039$348K0.0%+26.0%0.026%
5/17/2024 Artal Group S.A.1,001,360$24.80M0.6%+99.7%1.862%
5/16/2024 California State Teachers Retirement System40,442$1.00M0.0%-5.3%0.075%
5/16/2024 Janus Henderson Group PLC1,309,590$32.44M0.0%-35.7%2.436%
5/15/2024 First Light Asset Management LLC444,953$11.02M0.8%-59.1%0.828%
5/15/2024 Price T Rowe Associates Inc. MD4,201,771$104.08M0.0%-0.8%7.814%
5/13/2024 Seven Eight Capital LP41,120$1.02M0.1%-27.8%0.076%
5/10/2024 Vanguard Group Inc.1,125,283$27.87M0.0%+5.1%2.095%
5/9/2024 State Board of Administration of Florida Retirement System11,286$280K0.0%-5.3%0.021%
5/8/2024 Focused Wealth Management Inc10,129$251K0.0%+7,751.9%0.019%
5/8/2024 ProShare Advisors LLC11,346$281K0.0%+8.9%0.021%
5/8/2024 Headlands Technologies LLC3,881$96K0.0%N/A0.007%
5/7/2024Susquehanna Fundamental Investments LLC13,818$342K0.0%N/A0.026%
5/7/2024 SG Americas Securities LLC16,720$414K0.0%-87.7%0.031%
5/1/2024 BNP Paribas Financial Markets32,253$799K0.0%-65.4%0.060%
4/29/2024 Principal Financial Group Inc.11,737$291K0.0%-62.1%0.022%
4/29/2024 China Universal Asset Management Co. Ltd.10,360$257K0.0%+67.0%0.019%
4/29/2024 HighMark Wealth Management LLC16,502$409K0.3%+124.5%0.031%
4/26/2024 Pinnacle Associates Ltd.125,264$3.10M0.0%-0.4%0.233%
3/22/2024 PNC Financial Services Group Inc.1,544$56K0.0%+265.9%0.003%
3/5/2024 Wellington Management Group LLP2,594,102$94.27M0.0%+21.1%4.829%
2/16/2024 Price T Rowe Associates Inc. MD4,237,351$153.99M0.0%+10.9%7.895%
2/15/2024 PFM Health Sciences LP189,744$6.90M0.4%-77.3%0.354%
2/15/2024 Granahan Investment Management LLC417,157$15.16M0.5%+19.9%0.777%
2/15/2024 Boxer Capital LLC665,000$24.17M1.2%+6.4%1.239%
2/14/2024 ADAR1 Capital Management LLC6,102$222K0.1%N/A0.011%
2/14/2024 First Light Asset Management LLC1,088,801$39.57M3.2%-27.1%2.029%
2/14/2024 Seven Eight Capital LP56,946$2.07M0.2%N/A0.106%
2/14/2024 Sectoral Asset Management Inc.46,777$1.70M0.7%-72.9%0.087%
2/13/2024 DCF Advisers LLC84,000$3.05M1.7%+1.3%0.157%
2/13/2024 Armistice Capital LLC278,000$10.10M0.1%N/A0.518%
2/13/2024 Rafferty Asset Management LLC207,419$7.54M0.0%+32.2%0.386%
2/12/2024 TD Asset Management Inc146,538$5.33M0.0%-15.1%0.273%
2/9/2024 Trexquant Investment LP67,683$2.46M0.1%+19.1%0.126%
2/9/2024 Dynamic Technology Lab Private Ltd26,476$962K0.1%N/A0.049%
2/8/2024 Thornburg Investment Management Inc.25,591$930K0.0%-9.5%0.048%
2/7/2024 Principal Financial Group Inc.30,973$1.13M0.0%+21.1%0.058%
2/7/2024 Dimensional Fund Advisors LP867,635$31.53M0.0%-21.3%1.617%
2/7/2024 Jump Financial LLC6,457$235K0.0%-89.8%0.012%
2/7/2024 Teacher Retirement System of Texas9,266$337K0.0%-17.5%0.017%
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2/7/2024 E Fund Management Co. Ltd.11,096$403K0.0%+37.7%0.021%
2/6/2024 Charles Schwab Investment Management Inc.313,230$11.38M0.0%+1.5%0.584%
2/6/2024 Swiss National Bank79,200$2.88M0.0%-9.0%0.148%
2/1/2024 New York State Common Retirement Fund33,648$1.22M0.0%+8.6%0.063%
2/1/2024 Handelsbanken Fonder AB61,400$2.23M0.0%+4.2%0.114%
1/30/2024 HealthInvest Partners AB8,342$303K0.2%N/A0.016%
1/30/2024 Zurcher Kantonalbank Zurich Cantonalbank9,563$348K0.0%+28.1%0.018%
1/30/2024 Strs Ohio10,700$388K0.0%+55.1%0.020%
1/25/2024 Allspring Global Investments Holdings LLC1,947$71K0.0%-37.1%0.004%
1/25/2024 Nisa Investment Advisors LLC900$33K0.0%-40.4%0.002%
1/24/2024 Mirae Asset Global Investments Co. Ltd.27,751$1.01M0.0%+8.2%0.052%
1/24/2024 China Universal Asset Management Co. Ltd.6,203$225K0.0%+351.1%0.012%
1/19/2024 Pinnacle Associates Ltd.125,747$4.57M0.1%+0.6%0.234%
1/12/2024 SG Americas Securities LLC135,857$4.94M0.0%+46.9%0.253%
12/18/2023 Vanguard Group Inc.1,030,774$49.74M0.0%-1.0%1.921%
12/7/2023 Hudson Bay Capital Management LP32,500$1.57M0.0%N/A0.061%
12/1/2023 Wellington Management Group LLP2,141,647$103.33M0.0%-3.1%3.990%
11/15/2023 Rock Springs Capital Management LP614,298$29.64M0.8%-18.5%1.145%
11/15/2023 Sectoral Asset Management Inc.172,407$8.32M1.6%+13.5%0.321%
11/15/2023 Alps Advisors Inc.39,524$1.91M0.0%+1.9%0.074%
11/15/2023 Affinity Asset Advisors LLC79,214$3.82M1.1%-20.8%0.148%
11/14/2023 Corton Capital Inc.9,091$439K0.2%+20.7%0.017%
11/14/2023 Avidity Partners Management LP382,305$18.45M0.7%-28.5%0.712%
11/14/2023 Qube Research & Technologies Ltd84,653$4.09M0.0%+104.5%0.158%
11/14/2023 Trexquant Investment LP56,843$2.74M0.1%N/A0.106%
11/14/2023 Profund Advisors LLC26,634$1.29M0.1%+20.8%0.050%
11/13/2023 Connor Clark & Lunn Investment Management Ltd.127,775$6.17M0.0%+16.0%0.238%
11/13/2023 Algert Global LLC28,000$1.35M0.1%N/A0.052%
11/13/2023 Northern Trust Corp409,847$19.78M0.0%-0.5%0.764%
11/13/2023 Healthcare of Ontario Pension Plan Trust Fund30,500$1.47M0.0%N/A0.057%
11/13/2023 Mariner LLC167,932$8.10M0.0%+24.3%0.313%
11/13/2023 Silverarc Capital Management LLC26,629$1.29M0.4%-46.4%0.050%
11/13/2023 Aigen Investment Management LP34,890$1.68M0.3%N/A0.065%
11/13/2023 FMR LLC8,030,290$387.46M0.0%+1.5%14.962%
11/13/2023 Rafferty Asset Management LLC156,840$7.57M0.0%+31.2%0.292%
11/13/2023 E Fund Management Co. Ltd.8,059$389K0.0%+25.4%0.015%
11/9/2023 Rhumbline Advisers62,451$3.01M0.0%+2.7%0.116%
11/9/2023 Deutsche Bank AG22,613$1.09M0.0%+14.5%0.042%
11/9/2023 Citigroup Inc.67,930$3.28M0.0%+42.9%0.127%
11/9/2023 Headlands Technologies LLC1,531$74K0.0%N/A0.003%
11/9/2023 UBS Group AG45,252$2.18M0.0%+102.2%0.084%
11/8/2023 State of New Jersey Common Pension Fund D45,952$2.22M0.0%+27.4%0.086%
11/8/2023 Charles Schwab Investment Management Inc.308,537$14.89M0.0%-1.3%0.576%
11/8/2023 Swiss National Bank87,000$4.20M0.0%+1.3%0.163%
11/8/2023 Moody Aldrich Partners LLC23,904$1.15M0.2%-36.4%0.045%
11/8/2023 Oppenheimer & Co. Inc.7,908$382K0.0%+3.9%0.015%
11/7/2023 Barclays PLC86,035$4.15M0.0%+26.9%0.161%
11/7/2023 Fox Run Management L.L.C.9,617$464K0.1%N/A0.018%
11/7/2023 Jump Financial LLC63,117$3.05M0.1%+167.1%0.118%
11/6/2023 Victory Capital Management Inc.8,781$424K0.0%-66.6%0.016%
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11/2/2023 Principal Financial Group Inc.25,582$1.23M0.0%-65.6%0.048%
10/31/2023 Teacher Retirement System of Texas11,231$542K0.0%+4.9%0.021%
10/31/2023 Jennison Associates LLC55,579$2.68M0.0%+12.9%0.104%
10/31/2023 China 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%
10/27/2023 TD Asset Management Inc172,682$8.33M0.0%+93.1%0.323%
10/26/2023 Mirae Asset Global Investments Co. Ltd.25,652$1.24M0.0%+14.4%0.048%
10/26/2023 Strs Ohio6,900$332K0.0%-46.9%0.013%
10/25/2023 Zurcher Kantonalbank Zurich Cantonalbank7,464$360K0.0%+12.0%0.014%
10/24/2023 Bank of New York Mellon Corp499,382$24.10M0.0%-2.9%0.933%
(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 ($104.08M), Palo Alto Investors LP ($100.03M), Wellington Management Group LLP ($94.27M), Geode Capital Management LLC ($57.25M), Janus Henderson Group PLC ($32.44M), and Dimensional Fund Advisors LP ($31.53M).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 122 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), Artal Group S.A. ($500K), Price T Rowe Associates Inc. MD ($417.34K), Bank of New York Mellon Corp ($377.24K), and Federated Hermes Inc. ($345.63K).

How much institutional buying is happening at Prothena?

Institutional investors have bought a total of 11,331,195 shares in the last 24 months. This purchase volume represents approximately $555.76M in transactions.

Which Prothena major shareholders have been selling company stock?

Of the 70 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 ($3.02M), First Light Asset Management LLC ($1.48M), Janus Henderson Group PLC ($726.39K), PFM Health Sciences LP ($646.83K), Dimensional Fund Advisors LP ($563.91K), Prosight Management LP ($343.63K), and SG Americas Securities LLC ($300.80K).

How much institutional selling is happening at Prothena?

Institutional investors have sold a total of 9,609,769 shares in the last 24 months. This volume of shares sold represents approximately $477.45M in transactions.


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This page (NASDAQ:PRTA) was last updated on 5/28/2024 by MarketBeat.com Staff

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