Prothena Corp PLC(PRTA:US)
Market Cap$437.15M
Key Metrics
Price$8.35
Revenue (TTM)$54.53M
Holders Revenue (TTM)$22.53M
Gross Profit (TTM)-
Earnings (TTM)-$43.99M
EBITDA (TTM)-$63.07M
Op. Margin (TTM)-109.79%
Dividend Yield-
Holders Yield5.15%
Cash on hand$288.19M
Total Assets$302.58M
Net Assets$286.89M
Total Debt$6.99M
Key Metrics
Price$8.35
Revenue (TTM)$54.53M
Holders Revenue (TTM)$22.53M
Gross Profit (TTM)-
Earnings (TTM)-$43.99M
EBITDA (TTM)-$63.07M
Op. Margin (TTM)-109.79%
Dividend Yield-
Holders Yield5.15%
Cash on hand$288.19M
Total Assets$302.58M
Net Assets$286.89M
Total Debt$6.99M
Financials

| Name | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 | Jun 30, 2022 | Mar 31, 2022 | Dec 31, 2021 | Sep 30, 2021 | Jun 30, 2021 | Mar 31, 2021 | Dec 31, 2020 | Sep 30, 2020 | Jun 30, 2020 | Mar 31, 2020 | Dec 31, 2019 | Sep 30, 2019 | Jun 30, 2019 | Mar 31, 2019 | Dec 31, 2018 | Sep 30, 2018 | Jun 30, 2018 | Mar 31, 2018 | Dec 31, 2017 | Sep 30, 2017 | Jun 30, 2017 | Mar 31, 2017 | Dec 31, 2016 | Sep 30, 2016 | Jun 30, 2016 | Mar 31, 2016 | Dec 31, 2015 | Sep 30, 2015 | Jun 30, 2015 | Mar 31, 2015 | Dec 31, 2014 | Sep 30, 2014 | Jun 30, 2014 | Mar 31, 2014 | Dec 31, 2013 | Sep 30, 2013 | Jun 30, 2013 | Mar 31, 2013 | Dec 31, 2012 | Sep 30, 2012 | Jun 30, 2012 | Mar 31, 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Revenue | $1.01M | $51.08M | $21K | $2.42M | $4.42M | $2.83M | $2.12M | $970K | $132.01M | $50K | $316K | $84.87M | $4.02M | $2.17M | $49.92M | $1.52M | $1.31M | $1.15M | $1.17M | $139.17M | $60.07M | $160K | $360K | $157K | $195K | $141K | $256K | $205K | $167K | $186K | $194K | $255K | $279K | $227K | $229K | $219K | $26.81M | $259K | $171K | $286K | $333K | $265K | $307K | $429K | $278K | $593K | $2.01M | $1.49M | $15.12M | $32.23M | $167K | $171K | $167K | $171K | $575K | $944K | $735K | $404K |
Cost of Revenue | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Gross Profit | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| $19.7M | $25.29M | $27.23M | $42.18M | $56.43M | $68.41M | $67.02M | $67.48M | $73.64M | $81.58M | $78.83M | $74.56M | $70.52M | $58.49M | $50M | $51.85M | $44.52M | $39.1M | $34.26M | $29.95M | $32.12M | $32.27M | $30.67M | $31M | $26.93M | $24.99M | $23.53M | $21.18M | $18.66M | $23.2M | $24.54M | $27.75M | $42.44M | $48.94M | $47.55M | $53.75M | $44.94M | $36.53M | $49.45M | $42.97M | $40.49M | $27.68M | $24.52M | $23.09M | $18.31M | $15.62M | $15.12M | $14.62M | $13.55M | $14.22M | $10.87M | $9.74M | $11.36M | $9.14M | $12.8M | $9.61M | $10.45M | $11.22M | |
| Research and Development | $8.8M | $12.63M | $14.59M | $28.94M | $40.52M | $50.81M | $50.17M | $50.72M | $57.51M | $64.11M | $61.89M | $57.91M | $56.01M | $44.76M | $36.87M | $39.86M | $31.57M | $27.26M | $22.06M | $17.99M | $21.09M | $21.14M | $20.76M | $21.61M | $17.27M | $15.25M | $15.47M | $12.49M | $9.58M | $13.3M | $16.51M | $18.52M | $31.45M | $34.71M | $33.5M | $41.32M | $34.03M | $25.7M | $39.84M | $26.84M | $32.36M | $20.49M | $17.89M | $17.19M | $12.79M | $10.57M | $10.11M | $10.39M | $8.62M | $9.34M | $5.6M | $6.35M | $8.15M | $5.96M | $9.83M | $7.53M | $8.02M | $8.76M |
| Selling, General, and Administrative | $10.9M | $12.67M | $12.65M | $13.24M | $15.91M | $17.6M | $16.85M | $16.76M | $16.13M | $17.46M | $16.94M | $16.65M | $14.51M | $13.74M | $13.12M | $11.99M | $12.95M | $11.84M | $12.21M | $11.96M | $11.03M | $11.13M | $9.91M | $9.4M | $9.66M | $9.74M | $8.06M | $8.69M | $9.08M | $9.91M | $8.03M | $9.24M | $10.99M | $14.23M | $14.04M | $12.44M | $10.91M | $10.83M | $9.6M | $16.14M | $8.13M | $7.18M | $6.63M | $5.91M | $5.52M | $5.05M | $5.01M | $4.23M | $4.94M | $4.87M | $5.27M | $3.39M | $3.21M | $3.18M | $2.96M | $2.08M | $2.43M | $2.46M |
| Other Operating Expenses | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Operating Income | -$18.69M | $25.79M | -$27.21M | -$39.76M | -$52.01M | -$65.58M | -$64.9M | -$66.51M | $58.38M | -$81.53M | -$78.52M | $10.31M | -$66.5M | -$56.33M | -$72K | -$50.33M | -$43.21M | -$37.94M | -$33.09M | $109.23M | $27.95M | -$32.11M | -$30.31M | -$30.85M | -$26.73M | -$24.85M | -$23.27M | -$20.97M | -$18.5M | -$23.02M | -$24.34M | -$27.5M | -$42.17M | -$48.71M | -$47.32M | -$53.53M | -$18.13M | -$36.27M | -$49.28M | -$42.69M | -$40.16M | -$27.41M | -$24.21M | -$22.66M | -$18.04M | -$15.03M | -$13.11M | -$13.13M | $1.57M | $18.02M | -$10.7M | -$9.57M | -$11.19M | -$8.97M | -$12.22M | -$8.67M | -$9.71M | -$10.81M |
| $106K | $6.93M | $5.63M | $2.85M | -$28.96M | $4.21M | $5.4M | $6.68M | $6.47M | $7.09M | $7.9M | $8.51M | $7.6M | $6.55M | $3.42M | $1.92M | $637K | -$17K | -$4K | -$31K | -$53K | $34K | -$55K | $54K | $195K | $1.11M | $1.59M | $1.99M | $2.53M | $2.35M | $2.43M | $3.9M | -$19.66M | -$72K | -$154K | -$565K | -$856K | -$774K | $576K | -$130K | -$96K | $70K | $57K | -$77K | -$47K | $93K | $118K | $191K | $17K | -$16K | $21K | $14K | $14K | $22K | - | - | - | - | |
| Non-Operating Interest Income | $2.55M | $2.42M | $2.65M | $3.35M | $3.79M | $4.35M | $5.39M | $6.74M | $6.52M | $7.17M | $8.1M | $8.52M | $7.7M | $6.69M | $3.74M | $1.91M | $639K | $53K | $12K | $11K | $8K | $11K | $10K | $43K | $179K | $1.14M | $1.57M | $2.03M | $2.3M | $2.3M | $1.81M | $1.73M | $1.75M | $1.11M | $1.02M | $1.05M | $932K | $552K | - | $364K | $314K | $277K | $80K | $50K | $40K | $26K | $25K | $19K | $16K | $19K | $21K | $14K | $14K | $22K | - | - | - | - |
| Non-Operating Interest Expense | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | $0 | $0 | $0 | - | $936K | $936K | $917K | $908K | $929K | $929K | $914K | $916K | - | $226K | $324K | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Income/Expense | -$2.45M | $4.52M | $2.99M | -$502K | -$32.75M | -$140K | $9K | -$66K | -$51K | -$77K | -$205K | -$15K | -$97K | -$141K | -$327K | $2K | -$2K | -$70K | -$16K | -$42K | -$61K | $23K | -$65K | $11K | $16K | -$24K | $20K | -$42K | $235K | $44K | $1.56M | $3.11M | -$20.49M | -$272K | -$240K | -$683K | -$874K | -$410K | $576K | -$268K | -$86K | -$207K | -$23K | -$127K | -$87K | $67K | $93K | $172K | $1K | -$35K | - | - | - | - | - | - | - | - |
Income Before Tax | -$18.58M | $32.72M | -$21.58M | -$36.91M | -$80.97M | -$61.37M | -$59.5M | -$59.84M | $64.85M | -$74.44M | -$70.62M | $18.82M | -$58.9M | -$49.78M | $3.35M | -$48.42M | -$42.57M | -$37.96M | -$33.1M | $109.2M | $27.9M | -$32.08M | -$30.36M | -$30.79M | -$26.54M | -$23.74M | -$21.69M | -$18.98M | -$15.97M | -$20.67M | -$21.91M | -$23.6M | -$61.83M | -$48.78M | -$47.47M | -$54.1M | -$18.99M | -$37.05M | -$48.55M | -$42.82M | -$40.26M | -$27.34M | -$24.16M | -$22.74M | -$18.08M | -$14.94M | -$12.99M | -$12.94M | $1.59M | $18M | -$10.91M | -$9.55M | -$11.18M | -$8.95M | -$12.22M | -$8.67M | -$9.71M | -$10.81M |
Income Tax | $2K | $1K | $10K | -$371K | $44.8M | -$1.18M | -$1.55M | -$835K | -$2.04M | -$2.2M | -$3.14M | -$3.09M | -$4.31M | -$2.91M | -$3M | -$2.65M | -$1.33M | -$1.67M | $83K | -$51K | $254K | $4.66M | $353K | -$215K | -$255K | -$166K | -$131K | $468K | -$156K | $198K | $551K | $962K | -$1.95M | -$37K | $287K | -$1.71M | -$1.29M | -$1.66M | $353K | $421K | $189K | $181K | $2K | $238K | $195K | $266K | $123K | $241K | $296K | $151K | $148K | $137K | $124K | $6K | - | - | - | - |
Net Income | -$18.58M | $32.72M | -$21.59M | -$36.54M | -$125.77M | -$60.2M | -$57.96M | -$59M | $66.89M | -$72.24M | -$67.48M | $21.91M | -$54.6M | -$46.86M | $6.35M | -$45.76M | -$41.24M | -$36.29M | -$33.18M | $109.25M | $27.64M | -$36.74M | -$30.72M | -$30.58M | -$26.28M | -$23.57M | -$21.55M | -$19.45M | -$15.81M | -$20.87M | -$22.46M | -$24.56M | -$59.88M | -$48.74M | -$47.76M | -$52.39M | -$17.7M | -$35.38M | -$48.9M | -$43.24M | -$40.45M | -$27.52M | -$24.16M | -$22.98M | -$18.28M | -$15.2M | -$13.11M | -$13.18M | $1.29M | $17.85M | -$11.05M | -$9.69M | -$11.3M | -$8.95M | -$12.22M | -$8.67M | -$9.71M | -$10.81M |
Minority Interests | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Preferred Stock Dividends | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Net Income to Common | -$18.58M | $32.72M | -$21.59M | -$36.54M | -$125.77M | -$60.2M | -$57.96M | -$59M | $66.89M | -$72.24M | -$67.48M | $21.91M | -$54.6M | -$46.86M | $6.35M | -$45.76M | -$41.24M | -$36.29M | -$33.18M | $109.25M | $27.64M | -$36.74M | -$30.72M | -$30.58M | -$26.28M | -$23.57M | -$21.55M | -$19.45M | -$15.81M | -$20.87M | -$22.46M | -$24.56M | -$59.88M | -$48.74M | -$47.76M | -$52.39M | -$17.7M | -$35.38M | -$48.9M | -$43.24M | -$40.45M | -$27.52M | -$24.16M | -$22.98M | -$18.28M | -$15.2M | -$13.11M | -$13.18M | $1.29M | $17.85M | -$11.05M | -$9.69M | -$11.3M | -$8.95M | -$12.22M | -$8.67M | -$9.71M | -$10.81M |
Shares Outstanding (Basic) | 52.15M | 53.71M | 53.83M | 53.83M | 53.83M | 53.83M | 53.82M | 53.79M | 53.77M | 53.71M | 53.67M | 53.56M | 53.12M | 52.5M | 48.96M | 46.99M | 46.81M | 46.7M | 46.62M | 45.63M | 44.33M | 40.25M | 39.92M | 39.92M | 39.91M | 39.91M | 39.9M | 39.9M | 39.87M | 39.86M | 39.86M | 39.85M | 39.82M | 38.68M | 38.46M | 38.29M | 38.07M | 35.76M | 34.6M | 34.41M | 34.36M | 34.03M | 31.61M | 31.44M | 30.79M | 27.4M | 27.38M | 27.37M | 21.96M | 21.88M | 21.39M | 17.68M | 17.68M | 17.68M | 14.89M | 17.68M | 17.68M | 17.68M |
Shares Outstanding (Diluted) | 52.15M | 54.11M | 53.83M | 53.83M | 53.83M | 53.83M | 53.82M | 53.79M | 55.04M | 53.71M | 53.67M | 58M | 53.12M | 52.5M | 53.98M | 46.99M | 46.81M | 46.7M | 46.62M | 51.21M | 47.41M | 40.25M | 39.92M | 39.92M | 39.91M | 39.91M | 39.9M | 39.9M | 39.87M | 39.86M | 39.86M | 39.85M | 39.82M | 38.68M | 38.46M | 38.29M | 38.07M | 35.76M | 34.6M | 34.41M | 34.36M | 34.03M | 31.61M | 31.44M | 30.79M | 27.4M | 27.38M | 27.37M | 22.9M | 22.94M | 21.39M | 17.68M | 17.68M | 17.68M | 14.89M | 17.68M | 17.68M | 17.68M |
EPS (Basic) | -$0.36 | $0.61 | -$0.40 | -$0.68 | -$2.34 | -$1.12 | -$1.08 | -$1.10 | $1.24 | -$1.34 | -$1.26 | $0.41 | -$1.03 | -$0.89 | $0.13 | -$0.97 | -$0.88 | -$0.78 | -$0.71 | $2.39 | $0.62 | -$0.91 | -$0.77 | -$0.77 | -$0.66 | -$0.59 | -$0.54 | -$0.49 | -$0.40 | -$0.52 | -$0.56 | -$0.62 | -$1.50 | -$1.26 | -$1.24 | -$1.37 | -$0.46 | -$0.99 | -$1.41 | -$1.26 | -$1.18 | -$0.81 | -$0.76 | -$0.73 | -$0.59 | -$0.55 | -$0.48 | -$0.48 | $0.06 | $0.82 | -$0.52 | -$0.55 | -$0.64 | -$0.51 | -$0.82 | -$0.49 | -$0.55 | -$0.61 |
EPS (Diluted) | -$0.36 | $0.60 | -$0.40 | -$0.68 | -$2.34 | -$1.12 | -$1.08 | -$1.10 | $1.22 | -$1.34 | -$1.26 | $0.38 | -$1.03 | -$0.89 | $0.12 | -$0.97 | -$0.88 | -$0.78 | -$0.71 | $2.13 | $0.58 | -$0.91 | -$0.77 | -$0.77 | -$0.66 | -$0.59 | -$0.54 | -$0.49 | -$0.40 | -$0.52 | -$0.56 | -$0.62 | -$1.50 | -$1.26 | -$1.24 | -$1.37 | -$0.46 | -$0.99 | -$1.41 | -$1.26 | -$1.18 | -$0.81 | -$0.76 | -$0.73 | -$0.59 | -$0.55 | -$0.48 | -$0.48 | $0.06 | $0.78 | -$0.52 | -$0.55 | -$0.64 | -$0.51 | -$0.82 | -$0.49 | -$0.55 | -$0.61 |
EBIT | -$18.69M | $25.79M | -$27.21M | -$39.76M | -$52.01M | -$65.58M | -$64.9M | -$66.51M | $58.38M | -$81.53M | -$78.52M | $10.31M | -$66.5M | -$56.33M | -$72K | -$50.33M | -$43.21M | -$37.94M | -$33.09M | $109.23M | $27.95M | -$32.11M | -$30.31M | -$30.85M | -$26.73M | -$24.85M | -$21.69M | -$20.97M | -$18.5M | -$23.02M | -$20.97M | -$22.66M | -$60.91M | -$47.87M | -$46.54M | -$53.17M | -$18.07M | -$36.13M | -$49.28M | -$42.59M | -$39.93M | -$27.41M | -$24.21M | -$22.66M | -$18.04M | -$15.03M | -$13.11M | -$13.13M | $1.57M | $18.02M | -$10.7M | -$9.57M | -$11.19M | -$8.97M | -$12.22M | -$8.67M | -$9.71M | -$10.81M |
EBITDA | -$16.08M | $21.73M | -$29.67M | -$39.05M | -$19.17M | -$65.36M | -$64.68M | -$66.29M | $58.61M | -$81.31M | -$78.52M | $10.54M | -$66.28M | -$56.12M | -$72K | -$45.68M | -$43.03M | -$37.76M | -$31.41M | $110.94M | $29.66M | -$30.41M | -$28.56M | -$29.09M | -$24.99M | -$23.12M | -$19.95M | -$19.26M | -$16.8M | -$21.4M | -$21.74M | -$25.04M | -$39.21M | -$47.08M | -$45.76M | -$52.4M | -$17.32M | -$35.37M | -$48.36M | -$41.76M | -$39.5M | -$27.16M | -$23.99M | -$22.46M | -$17.84M | -$14.84M | -$12.91M | -$12.94M | $1.75M | $18.19M | -$10.47M | -$9.42M | -$11.05M | -$8.83M | -$12.06M | -$8.59M | -$9.6M | -$10.7M |
