Prothena Corporation Balance Sheet

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

Millions USD. Fiscal year is Jan - Dec.

Fiscal Year	TTM	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Mar '26 Mar 31, 2026	Dec '25 Dec 31, 2025	Dec '24 Dec 31, 2024	Dec '23 Dec 31, 2023	Dec '22 Dec 31, 2022	Dec '21 Dec 31, 2021
Cash & Equivalents	329.46	307.53	471.39	618.83	710.41	579.09
Cash & Short-Term Investments	329.46	307.53	471.39	618.83	710.41	579.09
Cash Growth	-21.17%	-34.76%	-23.83%	-12.89%	22.68%	96.05%
Accounts Receivable	-	-	-	5.16	-	-
Other Current Assets	9.74	7.66	14.02	15.29	8.69	5.72
Total Current Assets	339.2	315.19	485.41	639.28	719.1	584.81
Net Property, Plant & Equipment	9.35	10.27	13.79	16	8.01	14.14
Other Long-Term Assets	1.34	1.34	47.91	41.1	30.93	10.42
Total Assets	349.89	326.8	547.11	696.38	758.04	609.37
Accounts Payable	4.3	5.88	7.77	25.39	9.27	3.69
Accrued Expenses	4.61	4.33	13.43	14.72	10.79	6.35
Current Portion of Leases	2.89	2.89	2.61	1.11	6.47	5.94
Unearned Revenue	1.63	2.66	8.85	-	11.44	7.66
Other Current Liabilities	19.08	25.09	15.84	15.66	12.17	9.81
Total Current Liabilities	32.52	40.84	48.5	56.89	50.15	33.45
Long-Term Leases	4.76	5.49	8.23	10.72	-	6.39
Other Long-Term Liabilities	-	-	3.45	67.41	85.85	103.49
Total Long-Term Liabilities	4.76	5.49	11.68	78.13	85.85	109.87
Total Liabilities	37.28	46.33	60.18	135.02	135.99	143.32
Common Stock	0.53	0.54	0.54	0.54	-	-
Additional Paid-in Capital	1,626	1,626	1,589	1,541	1,455	1,182
Retained Earnings	-1,314	-1,346	-1,102	-980.03	-833	-716.05
Total Common Shareholders' Equity	312.62	280.47	486.93	561.37	621.52	465.58
Shareholders' Equity	312.62	280.47	486.93	561.37	622.04	466.04
Total Liabilities & Equity	349.89	326.8	547.11	696.38	758.04	609.37
Total Debt	7.65	8.37	10.84	11.84	6.47	12.33
Net Cash (Debt)	321.81	299.16	460.55	607	703.93	566.77
Net Cash Growth	7.57%	-35.04%	-24.13%	-13.77%	24.20%	104.21%
Net Cash Per Share	5.97	5.56	8.56	11.41	14.86	11.70
Book Value	312.62	280.47	486.93	561.37	621.52	465.58
Book Value Per Share	5.80	5.21	9.06	10.55	13.12	9.61
Tangible Book Value	312.62	280.47	486.93	561.37	621.52	465.58
Tangible Book Value Per Share	5.80	5.21	9.06	10.55	13.12	9.61

Updated May 7, 2026. Data Source: Fiscal.ai. Standard template. Financial Sources.

SEC Filings: 10-K · 10-Q