Prothena Corp Public (PRTA) EBT Margin (2013 - 2026)
Prothena Corp Public's EBT Margin was -1839.70% in Q2 2026, down 7.92 percentage points from -1831.79% a year earlier and down 1903.76 percentage points from the prior quarter.
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Analysis
Prothena Corp Public (PRTA) EBT Margin (2013 - 2026) Analysis & Trends
On a trailing twelve-month basis, Prothena Corp Public's EBT Margin was -81.33% through Jun 30, 2026, up 2449.13 percentage points year-over-year; for FY2025, it came in at -2073.82%, down 1978.43 percentage points from FY2024.
- EBT Margin shows a five-year change of +10989.13 percentage points (FY2020 to FY2025).
- In earlier years, EBT Margin was -95.39% in FY2024 (+80.24 pp), -175.64% in FY2023 (+57.37 pp), -233.01% in FY2022 (-268.87 pp) and 35.86% in FY2021 (+13098.81 pp).
- Quarterly EBT Margin has moved between -148880.00% (Q1 2024) and 78.46% (Q3 2021) over five years.
- Compared with a year earlier, EBT Margin was higher in four of the last eight quarters, with an average year-over-year change of +8136.87 percentage points.
- The best year-over-year quarter for EBT Margin over five years was Q1 2025 (a gain of 146709.81 percentage points); the worst was Q1 2024 (a drop of 146585.12 percentage points).
- Per Business Quant data, PRTA's EBT Margin in the three quarters before Q2 2026 was 64.06% (Q1 2026), -102757.14% (Q4 2025) and -1528.45% (Q3 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | EBT Margin (Qtr) |
|---|---|---|---|---|---|
| 1 | Johnson & Johnson | 655.56 Bn | 574.09 Bn | 17.26 Bn | 26.66% |
| 2 | AbbVie | 470.94 Bn | 444.10 Bn | 12.70 Bn | 25.18% |
| 3 | Merck | 367.14 Bn | 321.57 Bn | 12.21 Bn | -4.11% |
| 4 | Novartis Ag | 280.33 Bn | 236.20 Bn | 11.24 Bn | 29.63% |
| 5 | Astrazeneca | 257.78 Bn | 231.34 Bn | 12.86 Bn | 18.19% |
| 6 | Amgen | 226.04 Bn | 181.44 Bn | 7.24 Bn | 27.53% |
| 7 | Gilead Sciences | 188.89 Bn | 163.01 Bn | 6.22 Bn | -131.41% |
| 8 | Pfizer | 163.75 Bn | 110.70 Bn | 10.94 Bn | -4.34% |
| 9 | Vertex Pharmaceuticals | 133.68 Bn | 105.69 Bn | 2.84 Bn | 41.75% |
| 10 | Prothena Corp Public | 451.21 Mn | -804.86 Mn | - | -1,839.70% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | -1,839.70% |
| Mar 31, 2026 | 64.06% |
| Dec 31, 2025 | -102,757.14% |
| Sep 30, 2025 | -1,528.45% |
| Jun 30, 2025 | -1,831.79% |
| Mar 31, 2025 | -2,170.19% |
| Dec 31, 2024 | -2,802.68% |
| Sep 30, 2024 | -6,168.66% |
| Jun 30, 2024 | 49.12% |
| Mar 31, 2024 | -148,880.00% |
| Dec 31, 2023 | -22,347.47% |
| Sep 30, 2023 | 22.17% |
| Jun 30, 2023 | -1,465.56% |
| Mar 31, 2023 | -2,294.88% |
| Dec 31, 2022 | 6.70% |
| Sep 30, 2022 | -3,191.63% |
| Jun 30, 2022 | -3,244.82% |
| Mar 31, 2022 | -3,292.37% |
| Dec 31, 2021 | -2,823.89% |
| Sep 30, 2021 | 78.46% |
API Access
Prothena Corp Public EBT Margin 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=ebt-margin&ticker=PRTA&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "ebt-margin", "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=ebt-margin&ticker=PRTA&period=max&api_key=YOUR_API_KEY");
const data = await res.json();