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Prothena (Prothena) Shares Buyback Ratio % : -1.98 (As of Jun. 10, 2024)


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What is Prothena Shares Buyback Ratio %?

Shares Outstanding (EOP) are shares that have been authorized, issued, and purchased by investors and are held by them.

GuruFocus calculates shares buyback ratio using previous shares outstanding minus the current shares outstanding, and then divides by previous shares outstanding. Prothena's current shares buyback ratio was -1.98%.

Prothena Shares Buyback Ratio % Historical Data

The historical data trend for Prothena's Shares Buyback Ratio % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

* Premium members only.

Prothena Shares Buyback Ratio % Chart

Prothena Annual Data
Trend Dec14 Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23
Shares Buyback Ratio %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -0.09 -0.06 -16.88 -11.67 -3.03

Prothena Quarterly Data
Jun19 Sep19 Dec19 Mar20 Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24
Shares Buyback Ratio % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -1.10 -1.55 -0.27 -0.08 -0.07

Prothena Shares Buyback Ratio % Calculation

Prothena's Shares Buyback Ratio for the fiscal year that ended in Dec. 2023 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2022 ) - Shares Outstanding (EOP) (A: Dec. 2023 )) / Shares Outstanding (EOP) (A: Dec. 2022 )
=(52.1036 - 53.6821) / 52.1036
=-3.03%

Prothena's Shares Buyback Ratio for the quarter that ended in Mar. 2024 is calculated as

Shares Buyback Ratio=(Shares Outstanding (EOP) (A: Dec. 2023 ) - Shares Outstanding (EOP) (A: Mar. 2024 )) / Shares Outstanding (EOP) (A: Dec. 2023 )
=(53.6821 - 53.7205) / 53.6821
=-0.07%

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Prothena Shares Buyback Ratio % Related Terms

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Prothena (Prothena) Business Description

Industry
GURUFOCUS.COM » STOCK LIST » Healthcare » Biotechnology » Prothena Corp PLC (NAS:PRTA) » Definitions » Shares Buyback Ratio %
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Traded in Other Exchanges
0PT:Germany
Address
77 Sir John Rogerson’s Quay, Block C, Grand Canal Docklands, Dublin 2, IRL, D02 VK60
Website
https://www.prothena.com
Prothena Corp PLC is a biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating rare neurodegenerative and peripheral amyloid diseases. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including psoriasis and psoriatic arthritis (PRX003) and ATTR amyloidosis (PRX004).
Executives
Karin L Walker officer: See Remarks C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Brandon S. Smith officer: Chief Operating Officer C/O PROTHENA BIOSCIENCES INC., 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Carol D. Karp officer: Chief Regulatory Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Michael J Malecek officer: Chief Legal Officer C/O PROTHENA BIOSCIENCES, INC., 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Hideki Garren officer: Chief Medical Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Wagner M. Zago officer: Chief Scientific Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Dennis J. Selkoe director 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Helen Susan Kim director 3832 BAY CENTER PLACE, HAYWARD CA 94545
Tran Nguyen officer: Chief Financial Officer C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Gene G. Kinney officer: CSO & Head of R&D C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Dunn William H. Jr. director C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Shane Cooke director TREASURY BUILDING LOWER GRAND CANAL ST., DUBLIN 2 L2 00000
Richard T Collier director
Lars Ekman director C/O ULTRAGENYX PHARMACEUTICAL INC., 60 LEVERONI COURT, NOVATO CA 94949
Paula K Cobb director NIGHTSTAR THERAPEUTICS PLC, 203 CRESCENT STREET, SUITE 303, WALTHAM MA 02453