Annual EBITDA
-$154.56M$35.55M+18.70%
Summary
- Current Value
- As of today, PRTA annual EBITDA is -$154.56M, up +18.70% on
- Historical Performance
- PRTA annual EBITDA is down -311.47% over the past 3 years, and down -95.80% over the past 5 years
- All-Time High Comparison
- PRTA annual EBITDA is currently -311.47% below its historical high of $73.09M set on
- 3-Year Low Comparison
- PRTA annual EBITDA is +18.70% above its 3-year low of -$190.11M reached on
- Sector Comparison
- PRTA annual EBITDA is higher than 10.94% of companies in Healthcare sector
EBITDA Chart
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Series
SUGGESTED SERIES
Performance
| Metric | Date | Value | 1Y | 3Y | 5Y | 15Y |
|---|---|---|---|---|---|---|
| Annual EBITDA | -$154.56M | +18.7% | -311.5% | -95.8% | -1191.1% | |
| Quarterly EBITDA | -$38.82M | +40.9% | +20.2% | -33.5% | – | |
| TTM EBITDA | -$218.60M | -44.5% | -38.5% | -121.4% | – | |
| Price | $9.05 | -36.1% | -83.1% | -29.4% | – | |
| PE Ratio | - | – | – | – | – | |
| Annual Revenue | $135.16M | +47.9% | -32.6% | +10000.0% | +10000.0% | |
| Annual EPS | -$2.27 | +17.7% | -264.6% | -16.8% | -297.7% | |
| -$154.56M | +19.1% | -314.7% | -80.2% | -1170.8% | ||
| Annual Net Income | -$122.31M | +16.8% | -282.6% | -57.5% | -878.5% |
EBITDA Highs
| Period | High | Date | Current |
|---|---|---|---|
| 3Y | -$130.81M | N/A | -18.1% |
| 5Y | $73.09M | -311.5% | |
| All | $73.09M | -311.5% |
EBITDA Lows
| Period | Low | Date | Current |
|---|---|---|---|
| 3Y | -$190.11M | +18.7% | |
| 5Y | -$190.11M | +18.7% | |
| All | -$190.11M | +18.7% |
EBITDA History
FAQ
What is the current annual EBITDA of PRTA?
As of today, PRTA annual EBITDA is -$154.56M
What is 1-year change in PRTA annual EBITDA?
PRTA annual EBITDA is up +18.70% year-over-year
What is 3-year change in PRTA annual EBITDA?
PRTA annual EBITDA is down -311.47% over the past 3 years
How far is PRTA annual EBITDA from its all-time high?
PRTA annual EBITDA is currently -311.47% below its historical high of $73.09M set on December 31, 2021
How does PRTA annual EBITDA rank versus sector peers?
PRTA annual EBITDA is higher than 10.94% of companies in Healthcare sector
When is PRTA next annual earnings release?
The next annual earnings release for PRTA is on
Quarterly EBITDA
-$38.82M$12.31M+24.07%
Summary
- Current Value
- As of today, PRTA quarterly EBITDA is -$38.82M, up +24.07% on
- Historical Performance
- PRTA quarterly EBITDA is up +40.85% year-over-year, and up +20.16% over the past 3 years
- All-Time High Comparison
- PRTA quarterly EBITDA is currently -134.99% below its historical high of $110.94M set on
- 3-Year Low Comparison
- PRTA quarterly EBITDA is +51.86% above its 3-year low of -$80.64M reached on
- Sector Comparison
- PRTA quarterly EBITDA is higher than 10.75% of companies in Healthcare sector
Performance
| Metric | Date | Value | 3M | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|
| Quarterly EBITDA | -$38.82M | +24.1% | +40.9% | +20.2% | -33.5% | |
| Annual EBITDA | -$154.56M | – | +18.7% | -311.5% | -95.8% | |
| TTM EBITDA | -$218.60M | +10.9% | -44.5% | -38.5% | -121.4% | |
| Price | $9.05 | -12.6% | -36.1% | -83.1% | -29.4% | |
| PE Ratio | - | – | – | – | – | |
| Quarterly Revenue | $2.42M | -45.4% | +149.0% | +59.2% | +1438.2% | |
| Quarterly EPS | -$0.68 | +71.0% | +38.1% | +30.3% | +11.4% | |
| -$39.76M | +23.6% | +40.2% | +21.0% | -28.9% | ||
| Quarterly Net Income | -$36.54M | +71.0% | +38.1% | +20.1% | -19.5% |
Quarterly EBITDA Highs
| Period | High | Date | Current |
|---|---|---|---|
| 1Y | -$38.82M | at high | |
| 3Y | $59.27M | -165.5% | |
| 5Y | $110.94M | -135.0% | |
| All | $110.94M | -135.0% |
Quarterly EBITDA Lows
| Period | Low | Date | Current |
|---|---|---|---|
| 1Y | -$64.67M | +40.0% | |
| 3Y | -$80.64M | +51.9% | |
| 5Y | -$80.64M | +51.9% | |
| All | -$80.64M | +51.9% |
Quarterly EBITDA History
FAQ
What is the current quarterly EBITDA of PRTA?
As of today, PRTA quarterly EBITDA is -$38.82M
What is PRTA quarterly EBITDA most recent change?
PRTA quarterly EBITDA was up +24.07% on September 30, 2025
What is 1-year change in PRTA quarterly EBITDA?
PRTA quarterly EBITDA is up +40.85% year-over-year
How far is PRTA quarterly EBITDA from its all-time high?
PRTA quarterly EBITDA is currently -134.99% below its historical high of $110.94M set on September 30, 2021
How does PRTA quarterly EBITDA rank versus sector peers?
PRTA quarterly EBITDA is higher than 10.75% of companies in Healthcare sector
When is PRTA next earnings release?
The next earnings release for PRTA is on
TTM EBITDA
-$218.60M$26.80M+10.92%
Summary
- Current Value
- As of today, PRTA TTM EBITDA is -$218.60M, up +10.92% on
- Historical Performance
- PRTA TTM EBITDA is down -44.55% year-over-year, and down -38.46% over the past 3 years
- All-Time High Comparison
- PRTA TTM EBITDA is currently -367.80% below its historical high of $81.63M set on
- 3-Year Low Comparison
- PRTA TTM EBITDA is +10.92% above its 3-year low of -$245.40M reached on
- Sector Comparison
- PRTA TTM EBITDA is higher than 6.23% of companies in Healthcare sector
Performance
| Metric | Date | Value | 3M | 1Y | 3Y | 5Y |
|---|---|---|---|---|---|---|
| TTM EBITDA | -$218.60M | +10.9% | -44.5% | -38.5% | -121.4% | |
| Annual EBITDA | -$154.56M | – | +18.7% | -311.5% | -95.8% | |
| Quarterly EBITDA | -$38.82M | +24.1% | +40.9% | +20.2% | -33.5% | |
| Price | $9.05 | -12.6% | -36.1% | -83.1% | -29.4% | |
| PE Ratio | - | – | – | – | – | |
| TTM Revenue | $11.79M | +14.0% | -91.2% | +128.7% | +1473.6% | |
| TTM EPS | -$5.21 | +7.4% | -109.8% | -55.9% | -103.9% | |
| -$222.25M | +10.7% | -32.1% | -35.0% | -110.3% | ||
| TTM Net Income | -$280.46M | +7.4% | -112.7% | -79.2% | -175.0% |
TTM EBITDA Highs
| Period | High | Date | Current |
|---|---|---|---|
| 1Y | -$135.01M | -61.9% | |
| 3Y | -$72.98M | -199.5% | |
| 5Y | $81.63M | -367.8% | |
| All | $81.63M | -367.8% |
TTM EBITDA Lows
| Period | Low | Date | Current |
|---|---|---|---|
| 1Y | -$245.40M | +10.9% | |
| 3Y | -$245.40M | +10.9% | |
| 5Y | -$245.40M | +10.9% | |
| All | -$245.40M | +10.9% |
TTM EBITDA History
FAQ
What is the current TTM EBITDA of PRTA?
As of today, PRTA TTM EBITDA is -$218.60M
What is PRTA TTM EBITDA most recent change?
PRTA TTM EBITDA was up +10.92% on September 30, 2025
What is 1-year change in PRTA TTM EBITDA?
PRTA TTM EBITDA is down -44.55% year-over-year
How far is PRTA TTM EBITDA from its all-time high?
PRTA TTM EBITDA is currently -367.80% below its historical high of $81.63M set on September 30, 2021
How does PRTA TTM EBITDA rank versus sector peers?
PRTA TTM EBITDA is higher than 6.23% of companies in Healthcare sector
When is PRTA next earnings release?
The next earnings release for PRTA is on
EBITDA Formula
EBITDA = + + +
Data Sources & References
- PRTA Official Website www.prothena.com
- Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/1559053/000155905325000044/0001559053-25-000044-index.htm
- Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1559053/000155905325000009/0001559053-25-000009-index.htm
- PRTA Profile on Yahoo Finance finance.yahoo.com/quote/PRTA
- PRTA Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/prta