What one share of Prothena Corporation Public Limited holds
Prothena Corporation plc (“Prothena” or the “Company”) is a late-stage clinical biotechnology company with expertise in protein dysregulation with the potential to change the course of devastating neurodegenerative and rare peripheral amyloid diseases.
Prothena Corporation Public Limited’s numbers from its SEC filings, divided by its shares. Results cover the last 12 months to 2026-06-30; the balance sheet is as of 2026-06-30.
| Sales | $1.02 |
|---|---|
| Profit | −$0.82 |
| Cash and investments | $5.57 |
| Book value | $5.54 |
Per share by fiscal year
| Year | Sales | Profit | Capex | Free cash | Dividends | Book value |
|---|---|---|---|---|---|---|
| 2011 | — | −$2.05 | — | — | — | −$0.44 |
| 2012 | — | −$2.84 | — | — | — | $7.15 |
| 2013 | — | −$2.20 | — | — | — | $7.93 |
| 2014 | — | −$0.29 | — | — | — | $10.58 |
| 2015 | — | −$2.66 | — | — | — | $11.36 |
| 2016 | — | −$4.66 | — | — | — | $10.51 |
| 2017 | — | −$4.07 | — | — | — | $10.58 |
| 2018 | — | −$3.93 | — | — | — | $8.10 |
| 2019 | — | −$1.95 | — | — | — | $6.84 |
| 2020 | — | −$2.78 | — | — | — | $4.61 |
| 2021 | $4.14 | $1.38 | — | — | — | $9.99 |
| 2022 | $1.14 | −$2.47 | — | — | — | $11.94 |
| 2023 | $1.72 | −$2.76 | — | — | — | $10.46 |
| 2024 | $2.51 | −$2.27 | — | — | — | $9.05 |
| 2025 | $0.18 | −$4.53 | — | — | — | $5.21 |
Common questions about Prothena Corporation Public Limited
How much does one share of Prothena Corporation Public Limited earn?
Over the last 12 months, Prothena Corporation Public Limited lost $0.82 for each share on $1.02 of sales.
Does Prothena Corporation Public Limited pay a dividend?
Prothena Corporation Public Limited didn’t pay a dividend over the last 12 months, according to its SEC filings.
What is Prothena Corporation Public Limited’s book value per share?
Prothena Corporation Public Limited’s book value is $5.54 per share: what would be left for each share if it sold everything at the values on its books and paid every debt, as of June 30, 2026.
How much cash and debt does each share of Prothena Corporation Public Limited have?
Each share of Prothena Corporation Public Limited has $5.57 of cash and investments, as of June 30, 2026.
Has Prothena Corporation Public Limited bought back shares?
Prothena Corporation Public Limited’s share count rose about 271% from 2011 to 2025. That dilution means each share owns a smaller slice of the company.
From its SEC filings. For education only, not investment advice. New to these words? See the StockSlicer glossary.