Prothena Corporation plc (PRTA)

Prothena Corporation Revenue

Prothena Corporation had revenue of $620.00K in the quarter ending September 30, 2026, a decrease of -74.33%. This brings the company's total for the last twelve months to $52.74M, up 347.44% year-over-year. In the year 2025, Prothena Corporation had annual revenue of $9.68M, down -92.83%. That makes Prothena Corporation the 27,622nd largest company in the world by revenue and 3,743rd in the United States.

• Revenue (ttm): $52.74M
• Revenue Growth: +347.44%
• P/S Ratio: 7.95
• Revenue / Employee: $787,090
• Employees: 67
• Market Cap: 419.01M

Revenue Chart

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Revenue History

Fiscal Year End	Revenue	Change	Growth
Dec 31, 2025	9.68M	-125.47M	-92.83%
Dec 31, 2024	135.16M	43.79M	47.92%
Dec 31, 2023	91.37M	37.47M	69.50%
Dec 31, 2022	53.91M	-146.67M	-73.13%
Dec 31, 2021	200.58M	199.72M	23,414.30%
Dec 31, 2020	853.00K	39.00K	4.79%
Dec 31, 2019	814.00K	-141.00K	-14.76%
Dec 31, 2018	955.00K	-26.56M	-96.53%
Dec 31, 2017	27.52M	26.46M	2,508.44%
Dec 31, 2016	1.06M	-552.00K	-34.35%
Dec 31, 2015	1.61M	-49.25M	-96.84%
Dec 31, 2014	50.85M	50.18M	7,422.78%
Dec 31, 2013	676.00K	-1.98M	-74.57%
Dec 31, 2012	2.66M	2.15M	424.26%
Dec 31, 2011	507.00K	-736.00K	-59.21%
Dec 31, 2010	1.24M	-	-

Data Source: Fiscal.ai Last updated: Nov 5, 2026

Revenue data is provided by Fiscal.ai and updates within minutes after each earnings release, which is every three months for this company.

Update frequency:

Quarterly

Last checked:

Nov 11, 2026

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