Tuesday 13 October 2026 Export PRTA’s income statement to Excel — free account

Prothena Corporation plc

Prothena Corporation plc’s revenue for fiscal 2025 (year ended December 2025) was $9.7 million, down 92.8% from fiscal 2024. In the quarter to June 2026, revenue fell 77.2%, EPS grew 84.6% and free cash flow grew 44.6%, each against the same quarter a year earlier. Insiders bought in the last twelve months.

8.42 0.01 −0.12%

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Market cap: $432.8M
P/E: 0.0×
Fwd P/E: 188×
Dividend yield: —
F-score: 2/9
Altman Z: −0.24
Beneish M: n/a
Dividend safety: n/a

Overview Business Profile Financial Analysis Income Statement Balance Sheet Cash Flow Metrics & Ratios 10-Q 10-K

	Older periods	Sep '25	Dec '25	Mar '26	Jun '26
Piotroski F-Score Full definition →	+8 more TTM periods Free account	2	2	3	5
ROE Full definition →		(67.63%)	(63.62%)	(40.30%)	(14.39%)
ROA Full definition →		(59.18%)	(55.86%)	(35.77%)	(12.54%)
ROIC Full definition →		0.00%	0.00%	0.00%	0.00%
Return on Tangible Assets Full definition →		(96.38%)	(88.28%)	(48.98%)	(15.55%)
Average Days of Receivables Full definition →		0.00	0.00	0.00	0.00
Free Cash Flow per Share Full definition →		(3.50)	(3.04)	(1.51)	(1.17)
Free Cash Flow Full definition →		(188.22)	(163.72)	(81.34)	(60.80)
Capital Expenditures Full definition →		(0.18)	(0.14)	—	(0.75)
Other line items
Cash ROIC Full definition →		(30.08%)	(27.84%)	(12.67%)	(10.57%)
Accounts Receivable Turnover Full definition →		0.00	0.00	0.00	0.00
Accounts Payable Turnover Full definition →		0.00	0.00	0.00	0.00
Average Days of Payables Full definition →		0.00	0.00	0.00	0.00
Tax Rate Full definition →		0.17	0.22	0.42	(0.01)
Research and Development Expense of Revenue Full definition →		1,446.11%	1,392.52%	166.84%	119.11%
Selling, General and Administrative Expense of Revenue Full definition →		539.57%	613.30%	93.99%	90.68%
Share Based Compensation of Revenue Full definition →		348.60%	388.68%	58.00%	53.30%
Operating CF/Net income Full definition →		0.67	0.67	0.54	1.37
Depreciation/Fixed assets Full definition →		1.49	1.73	1.89	1.50
Capex/Depreciation Full definition →		(0.05)	(0.04)	0.00	(0.20)
Revenue per Share Full definition →		0.22	0.18	1.08	1.05
Operating CF per Share Full definition →		(3.49)	(3.04)	(1.51)	(1.15)
Capex per Share Full definition →		0.00	0.00	0.00	(0.01)
Capex to Sales Full definition →		0.02	0.01	0.00	0.01

Show all line items

Columns are period end dates

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