Prothena Corporation plc (PRTA)

Prothena Corporation Balance Sheet

Financials in millions USD. Fiscal year is January - December.

Fiscal Year	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Dec 31, 2025	Dec 31, 2024	Dec 31, 2023	Dec 31, 2022	Dec 31, 2021
Cash & Equivalents	307.53	471.39	618.83	710.41	579.09
Cash & Short-Term Investments	307.53	471.39	618.83	710.41	579.09
Cash Growth	-34.76%	-23.83%	-12.89%	22.68%	96.05%
Accounts Receivable	-	-	5.16	-	-
Other Current Assets	7.66	14.02	15.29	8.69	5.72
Total Current Assets	315.19	485.41	639.28	719.1	584.81
Net Property, Plant & Equipment	10.27	13.79	16	8.01	14.14
Other Long-Term Assets	1.34	47.91	41.1	30.93	10.42
Total Assets	326.8	547.11	696.38	758.04	609.37
Accounts Payable	5.88	7.77	25.39	9.27	3.69
Accrued Expenses	4.33	13.43	14.72	10.79	6.35
Current Portion of Leases	2.89	2.61	1.11	6.47	5.94
Unearned Revenue	2.66	8.85	-	11.44	7.66
Other Current Liabilities	25.09	15.84	15.66	12.17	9.81
Total Current Liabilities	40.84	48.5	56.89	50.15	33.45
Long-Term Leases	5.49	8.23	10.72	-	6.39
Other Long-Term Liabilities	-	3.45	67.41	85.85	103.49
Total Long-Term Liabilities	5.49	11.68	78.13	85.85	109.87
Total Liabilities	46.33	60.18	135.02	135.99	143.32
Common Stock	0.54	0.54	0.54	-	-
Additional Paid-in Capital	1,626	1,589	1,541	1,455	1,182
Retained Earnings	-1,346	-1,102	-980.03	-833	-716.05
Total Common Shareholders' Equity	280.47	486.93	561.37	621.52	465.58
Shareholders' Equity	280.47	486.93	561.37	622.04	466.04
Total Liabilities & Equity	326.8	547.11	696.38	758.04	609.37
Total Debt	8.37	10.84	11.84	6.47	12.33
Net Cash (Debt)	299.16	460.55	607	703.93	566.77
Net Cash Growth	-35.04%	-24.13%	-13.77%	24.20%	104.21%
Net Cash Per Share	5.56	8.56	11.41	14.86	11.70
Book Value	280.47	486.93	561.37	621.52	465.58
Book Value Per Share	5.21	9.06	10.55	13.12	9.61
Tangible Book Value	280.47	486.93	561.37	621.52	465.58
Tangible Book Value Per Share	5.21	9.06	10.55	13.12	9.61

Updated Dec 31, 2025. Data Source: Fiscal.ai. Standard template. Financial Sources.

SEC Filings: 10-K · 10-Q