Prothena Corporation

PRTA | NASDAQ

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$8.74

+$0.23 (+2.70%)

Sep 22, 2026, 9:30 AM ET · Market open

Overview Rating Statistics Financials Earnings Analysts Ownership Profile

Income Statement Balance Sheet Cashflow Statement Ratios

Annual Quarterly TTM

Fiscal Year Period Ending	FY 2025 Dec 30, 2025	FY 2024 Dec 30, 2024	FY 2023 Dec 30, 2023	FY 2022 Dec 30, 2022	FY 2021 Dec 30, 2021	FY 2020 Dec 30, 2020
Revenue	9.68M	135.16M	91.37M	53.91M	200.58M	853K
Cost of Revenue	3.7M	n/a	n/a	n/a	n/a	74.88M
Gross Profit	5.98M	135.16M	91.37M	53.91M	200.58M	-74.03M
Operating Income	-184.56M	-154.56M	-191.04M	-131.56M	71.98M	-112.73M
Interest Income	14.14M	25.82M	31.01M	6.35M	42K	1.37M
Pretax Income	-200.83M	-128.93M	-160.48M	-125.61M	71.92M	-110.86M
Net Income	-244.09M	-122.31M	-147.03M	-116.95M	66.98M	-111.14M
Selling & General & Admin	59.39M	67.2M	61.84M	49.9M	46.32M	38.7M
Research & Development	134.85M	222.52M	220.57M	135.56M	82.28M	75.09M
Other Expenses	-3.7M	n/a	n/a	n/a	n/a	-75.09M
Operating Expenses	190.54M	289.72M	282.41M	185.46M	128.6M	38.7M
Interest Expense	n/a	n/a	n/a	n/a	n/a	n/a
Selling & Marketing Expenses	n/a	n/a	n/a	n/a	n/a	n/a
Cost & Expenses	194.24M	289.72M	282.41M	185.46M	128.6M	113.59M
Income Tax Expense	43.26M	-6.62M	-13.45M	-8.66M	4.95M	283K
Shares Outstanding (Basic)	53.83M	53.77M	53.22M	47.37M	44.23M	39.92M
Shares Outstanding (Diluted)	53.83M	53.77M	53.22M	47.37M	48.46M	39.92M
EPS (Basic)	-4.53	-2.27	-2.76	-2.47	1.51	-2.78
EPS (Diluted)	-4.53	-2.27	-2.76	-2.47	1.38	-2.78
EBITDA	-197.13M	-128.04M	-159.55M	-124.86M	73.04M	-111.22M
EBIT	-200.83M	-128.93M	-160.48M	-125.61M	71.92M	-112.73M
Depreciation & Amortization	3.7M	893K	928K	744K	1.12M	1.51M