Prothena Corporation plc (PRTA)

NASDAQ: PRTA · Real-Time Price · USD

9.44

-0.01 (-0.16%)

Aug 24, 2026, 1:45 PM EDT - Market open

Prothena Corporation Balance Sheet

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

Millions USD. Fiscal year is Jan - Dec.

Assets

Fiscal Year	TTM	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Jun '26 Jun 30, 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	288.19	307.53	471.39	618.83	710.41	579.09
Cash & Short-Term Investments	288.19	307.53	471.39	618.83	710.41	579.09
Cash Growth	-22.41%	-34.76%	-23.83%	-12.89%	22.68%	96.05%
Accounts Receivable	-	-	-	5.16	-	-
Other Receivables	-	-	-	-	0.06	0.01
Receivables	-	-	-	5.16	0.06	0.01
Prepaid Expenses	2.67	5.91	12.86	0.8	6.92	4.94
Restricted Cash	-	-	-	1.35	-	-
Other Current Assets	1.15	1.75	1.17	13.14	1.71	0.77
Total Current Assets	292.01	315.19	485.41	639.28	719.1	584.81
Property, Plant & Equipment	9.22	10.27	13.79	16	8.01	14.14
Long-Term Deferred Tax Assets	-	-	43.24	33.89	18.2	7.07
Other Long-Term Assets	1.34	1.34	4.67	7.21	12.73	3.35
Total Assets	302.58	326.8	547.11	696.38	758.04	609.37

Liabilities

Fiscal Year	TTM	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Jun '26 Jun 30, 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
Accounts Payable	1.94	5.88	7.77	25.39	9.27	3.69
Accrued Expenses	5.54	15.9	28.34	28.26	22.46	15.76
Current Portion of Leases	2.96	2.89	2.61	1.11	6.47	5.94
Current Unearned Revenue	0.62	2.66	8.85	-	11.44	7.66
Other Current Liabilities	0.6	13.52	0.93	2.13	0.5	0.41
Total Current Liabilities	11.66	40.84	48.5	56.89	50.15	33.45
Long-Term Leases	4.03	5.49	8.23	10.72	-	6.39
Long-Term Unearned Revenue	-	-	3.45	67.41	85.29	102.93
Other Long-Term Liabilities	-	-	-	-	0.55	0.55
Total Liabilities	15.69	46.33	60.18	135.02	135.99	143.32

Shareholders' Equity

Fiscal Year	TTM	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Jun '26 Jun 30, 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
Common Stock	0.52	0.54	0.54	0.54	0.52	0.47
Additional Paid-In Capital	1,619	1,626	1,589	1,541	1,455	1,182
Retained Earnings	-1,332	-1,346	-1,102	-980.03	-833	-716.05
Shareholders' Equity	286.89	280.47	486.93	561.37	622.04	466.04
Total Liabilities & Equity	302.58	326.8	547.11	696.38	758.04	609.37

Additional Metrics

Fiscal Year	TTM	FY 2025	FY 2024	FY 2023	FY 2022	FY 2021
Period Ending	Jun '26 Jun 30, 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
Total Debt	6.99	8.37	10.84	11.84	6.47	12.33
Net Cash (Debt)	281.2	299.16	460.55	607	703.93	566.77
Net Cash Growth	-22.25%	-35.04%	-24.13%	-13.77%	24.20%	104.21%
Net Cash Per Share	5.27	5.56	8.56	11.41	14.86	11.69
Filing Date Shares Outstanding	51.34	53.83	53.83	53.72	52.56	46.69
Total Common Shares Outstanding	51.74	53.83	53.83	53.68	52.1	46.66
Working Capital	280.36	274.35	436.91	582.39	668.95	551.36
Book Value Per Share	5.54	5.21	9.05	10.46	11.94	9.99
Tangible Book Value	286.89	280.47	486.93	561.37	622.04	466.04
Tangible Book Value Per Share	5.54	5.21	9.05	10.46	11.94	9.99
Machinery	7.03	7.07	9.14	9.02	9.9	9.76
Leasehold Improvements	-	-	-	-	1.5	1.39

SEC Filings: 10-K · 10-Q