Prothena Corporation

PRTA | NASDAQ

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$8.94

+$0.43 (+5.05%)

Sep 22, 2026, 2:14 PM 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
Cash & Equivalents	307.53M	471.39M	618.83M	710.41M	579.09M	295.38M
Short-Term Investments	n/a	n/a	n/a	n/a	n/a	n/a
Long-Term Investments	860K	860K	n/a	n/a	n/a	n/a
Other Long-Term Assets	482K	3.81M	7.21M	12.73M	3.35M	1.69M
Receivables	n/a	n/a	5.16M	62K	13K	15K
Inventory	n/a	n/a	n/a	n/a	n/a	n/a
Other Current Assets	1.75M	1.17M	3.49M	1.71M	766K	1.35M
Total Current Assets	315.19M	485.41M	639.28M	719.1M	584.81M	299.28M
Property-Plant & Equipment	10.27M	13.79M	16M	8.01M	14.14M	20.36M
Goodwill & Intangibles	n/a	n/a	n/a	n/a	n/a	n/a
Total Long-Term Assets	11.61M	61.7M	57.1M	38.94M	24.56M	33.69M
Total Assets	326.8M	547.11M	696.38M	758.04M	609.37M	332.98M
Account Payables	5.88M	7.77M	25.39M	9.27M	3.69M	4.12M
Deferred Revenue	2.66M	8.85M	n/a	11.44M	7.66M	n/a
Short-Term Debt	2.89M	n/a	n/a	n/a	n/a	n/a
Other Current Liabilities	29.42M	1.38M	2.13M	503K	405K	516K
Total Current Liabilities	40.84M	48.5M	56.89M	50.15M	33.45M	25.85M
Long-Term Debt	5.49M	n/a	n/a	n/a	n/a	n/a
Other Long-Term Liabilities	-5.49M	n/a	n/a	553K	553K	553K
Total Long-Term Liabilities	5.49M	11.68M	78.13M	85.85M	109.87M	123.12M
Total Liabilities	46.33M	60.18M	135.02M	135.99M	143.32M	148.97M
Total Debt	13.86M	10.84M	11.84M	6.47M	12.33M	17.84M
Book Value	280.47M	486.93M	561.37M	622.04M	466.04M	184.01M
Book Value Per Share	5.21	9.06	10.55	13.13	9.62	4.61
Common Stock	538K	538K	537K	521K	466K	399K
Retained Earnings	-1.35B	-1.1B	-980.03M	-833M	-716.05M	-783.03M
Comprehensive Income	n/a	n/a	n/a	n/a	n/a	n/a
Shareholders Equity	280.47M	486.93M	561.37M	622.04M	466.04M	184.01M
Total Investments	860K	860K	n/a	n/a	n/a	n/a