Prothena Corp Public (PRTA) Retained Earnings (2012 - 2026)
Prothena Corp Public's Retained Earnings came in at -$1.33 billion for Q2 2026, compared with -$1.3 billion a year earlier.
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Analysis
Prothena Corp Public (PRTA) Retained Earnings (2012 - 2026) Analysis & Trends
At the end of FY2025, Prothena Corp Public's Retained Earnings was -$1.35 billion.
- Going back by year, Retained Earnings was -$1.1 billion in FY2024, -$980.03 million in FY2023, -$833 million in FY2022 and -$716.05 million in FY2021.
- The five-year range for quarterly Retained Earnings is -$1.35 billion (Q4 2025) to -$682.9 million (Q3 2021).
- Business Quant data shows PRTA's Retained Earnings at -$1.31 billion (Q1 2026), -$1.35 billion (Q4 2025) and -$1.32 billion (Q3 2025) in the three quarters before Q2 2026.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Retained Earnings (Qtr) |
|---|---|---|---|---|---|
| 1 | Johnson & Johnson | 655.56 Bn | 574.09 Bn | 17.26 Bn | 171.67 Bn |
| 2 | AbbVie | 470.94 Bn | 444.10 Bn | 12.70 Bn | -17.33 Bn |
| 3 | Merck | 367.14 Bn | 321.57 Bn | 12.21 Bn | 63.27 Bn |
| 4 | Novartis Ag | 280.33 Bn | 236.20 Bn | 11.24 Bn | 40.86 Bn |
| 5 | Astrazeneca | 257.78 Bn | 231.34 Bn | 12.86 Bn | 12.59 Bn |
| 6 | Amgen | 226.04 Bn | 181.44 Bn | 7.24 Bn | -22.28 Bn |
| 7 | Gilead Sciences | 188.89 Bn | 163.01 Bn | 6.22 Bn | 2.20 Bn |
| 8 | Pfizer | 163.75 Bn | 110.70 Bn | 10.94 Bn | 112.09 Bn |
| 9 | Vertex Pharmaceuticals | 133.68 Bn | 105.69 Bn | 2.84 Bn | 15.69 Bn |
| 10 | Prothena Corp Public | 451.21 Mn | -804.86 Mn | - | -1.33 Bn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | -1.33 Bn |
| Mar 31, 2026 | -1.31 Bn |
| Dec 31, 2025 | -1.35 Bn |
| Sep 30, 2025 | -1.32 Bn |
| Jun 30, 2025 | -1.30 Bn |
| Mar 31, 2025 | -1.20 Bn |
| Dec 31, 2024 | -1.10 Bn |
| Sep 30, 2024 | -1.04 Bn |
| Jun 30, 2024 | -985.40 Mn |
| Mar 31, 2024 | -1.10 Bn |
| Dec 31, 2023 | -980.03 Mn |
| Sep 30, 2023 | -912.60 Mn |
| Jun 30, 2023 | -934.50 Mn |
| Mar 31, 2023 | -879.90 Mn |
| Dec 31, 2022 | -833.00 Mn |
| Sep 30, 2022 | -839.40 Mn |
| Jun 30, 2022 | -793.60 Mn |
| Mar 31, 2022 | -752.34 Mn |
| Dec 31, 2021 | -716.05 Mn |
| Sep 30, 2021 | -682.90 Mn |
API Access
Prothena Corp Public Retained Earnings API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=retained-earnings&ticker=PRTA&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "retained-earnings", "ticker": "PRTA", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=retained-earnings&ticker=PRTA&period=max&api_key=YOUR_API_KEY");
const data = await res.json();