Prothena Corporation plc (PRTA)

NASDAQ: PRTA · Real-Time Price · USD

10.18

+0.20 (2.00%)

At close: May 29, 2026, 4:00 PM EDT

9.98

-0.20 (-1.96%)

After-hours: May 29, 2026, 5:40 PM EDT

Prothena Corporation Income Statement

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
Revenue	57.94	9.68	135.16	91.37	53.91	200.58
Revenue Growth (YoY)	-57.99%	-92.84%	47.92%	69.50%	-73.13%	23414.30%
Gross Profit	57.94	9.68	135.16	91.37	53.91	200.58
Selling, General & Admin	54.46	59.39	67.2	61.84	49.9	46.32
Research & Development	96.67	134.85	222.52	220.57	135.56	82.28
Other Operating Expenses	25.84	30.08	-	-	-	-
Total Operating Expenses	176.96	224.32	289.72	282.41	185.46	128.6
Operating Income	-119.02	-214.64	-154.56	-191.04	-131.56	71.98
Interest Income	6.21	14.14	25.82	31.01	6.35	0.04
Other Non-Operating Income (Expense)	0.13	-0.33	-0.19	-0.46	-0.4	-0.1
Total Non-Operating Income (Expense)	6.34	13.81	25.63	30.56	5.95	-0.05
Pretax Income	-106.73	-200.83	-128.93	-160.48	-125.61	71.92
Provision for Income Taxes	44.44	43.26	-6.62	-13.45	-8.66	4.95
Net Income	-151.18	-244.09	-122.31	-147.03	-116.95	66.98
Net Income to Common	-151.18	-244.09	-122.31	-147.03	-116.95	66.98
Shares Outstanding (Basic)	54	54	54	53	47	44
Shares Outstanding (Diluted)	54	54	54	53	47	48
Shares Change (YoY)	-0.41%	0.11%	1.04%	12.34%	-2.26%	21.42%
EPS (Basic)	-2.81	-4.53	-2.27	-2.76	-2.47	1.51
EPS (Diluted)	-2.82	-4.53	-2.27	-2.76	-2.47	1.38
Shares Outstanding	53.08	53.83	53.83	53.68	52.1	46.66
Free Cash Flow	-81.44	-163.72	-150.35	-136.72	-109.29	92.03
Free Cash Flow Per Share	-1.51	-3.04	-2.80	-2.57	-2.31	1.90
Gross Margin	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%
Operating Margin	-205.43%	-2216.44%	-114.36%	-209.08%	-244.05%	35.88%
Profit Margin	-260.92%	-2520.57%	-90.49%	-160.92%	-216.95%	33.39%
FCF Margin	-140.55%	-1690.60%	-111.24%	-149.63%	-202.74%	45.88%
EBITDA	-118.17	-213.75	-153.67	-190.11	-130.81	73.09
EBITDA Margin	-203.95%	-2207.20%	-113.70%	-208.06%	-242.67%	36.44%
EBIT	-119.02	-214.64	-154.56	-191.04	-131.56	71.98
EBIT Margin	-205.43%	-2216.44%	-114.36%	-209.08%	-244.05%	35.88%
Effective Tax Rate	-41.64%	-21.54%	5.13%	8.38%	6.89%	6.88%

SEC Filings: 10-K · 10-Q