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Prothena Corporation plc (PRTA) Financial Statements

Prothena Corporation plc (PRTA) reported trailing twelve-month revenue of $54.5M (up 427.3% year on year) and net income of -$44.0M as of 2026-06-30, according to EquiReason's reading of its SEC filings. Free cash flow over the same period: -$60.7M.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

PRTAProthena Corporation plcFollow PRTA — free
Biotechnology · Healthcare
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Price chart with a free account
Market cap
421.0M
P/E TTM
—
Dividend yield
—
52-week
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Next earnings
29 Oct, in 5 days

Fiscal-year columns end in the month shown. The current fiscal year appears once its annual report is filed; until then TTM = the last four reported quarters, to Jun 26.

LineFY2014
Dec 14
FY2015
Dec 15
FY2016
Dec 16
FY2017
Dec 17
FY2018
Dec 18
FY2019
Dec 19
FY2020
Dec 20
FY2021
Dec 21
FY2022
Dec 22
FY2023
Dec 23
FY2024
Dec 24
FY2025
Dec 25
TTM
Jun 26
Trend
Revenue50.91.61.127.51.00.80.9200.653.991.4135.29.754.5
Research & development38.558.4119.5134.5101.250.874.982.3135.6220.6222.5134.964.9
Operating income-6.6-79.9-159.5-155.3-158.9-85.7-112.772.0-131.6-191.0-154.6-214.6-55.5
Pre-tax income-6.3-79.9-159.0-157.6-156.1-77.3-111.471.9-125.6-160.5-128.9-200.8-44.4
Income tax0.80.71.1-4.4-0.50.4-0.34.9-8.7-13.5-6.643.3-0.4
Net income-7.2-80.6-160.1-153.2-155.6-77.7-111.167.0-116.9-147.0-122.3-244.1-44.0
Diluted EPS ($)-0.29-2.66-4.66-4.07-3.93-1.95-2.781.38-2.47-2.76-2.27-4.53-0.84
Diluted shares (mn)———————48.547.453.253.853.8—

USD millions · SEC XBRL

Prothena Corporation plc — questions

What is Prothena Corporation plc's revenue?
$54.5M over the twelve months to 2026-06-30, up 427.3% year on year, from its 10-Q and 10-K filings.
What is Prothena Corporation plc's net income?
-$44.0M over the twelve months to 2026-06-30.
What is Prothena Corporation plc's free cash flow?
-$60.7M over the twelve months to 2026-06-30.
What are Prothena Corporation plc's diluted earnings per share?
$-0.84 over the twelve months to 2026-06-30.

Every figure on this page comes from Prothena Corporation plc's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.