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PRTA

Prothena Corporation plc

NASDAQ: PRTA · HEALTHCARE · BIOTECHNOLOGY

$10.87
-5.56% today

Updated 2026-04-29

Market cap
$619.62M
P/E ratio
P/S ratio
63.98x
EPS (TTM)
$-4.53
Dividend yield
52W range
$4 – $12
Volume
0.5M

Prothena Corporation plc (PRTA) Financial statements

SEC filings — annual and quarterly data.

Cash flow — annual

Item2010201120122013201420152016201720182019202020212022202320242025
Operating cash flow$-9.08M$-19.70M$-42.07M$-32.10M$-683000.00$-62.45M$-117.27M$-131.18M$-28.28M$-52.97M$-80.36M$92.61M$-108.82M$-133.91M$-150.05M$-163.58M
Capital expenditures$2.61M$595000.00$1.30M$564000.00$526000.00$1.38M$16.64M$3.63M$1.77M$555000.00$196000.00$575000.00$464000.00$2.81M$298000.00$138000.00
Depreciation
Stock-based comp$1.60M$2.97M$6.10M$3.13M$5.60M$10.41M$24.93M$26.76M$27.01M$23.59M$22.01M$24.66M$31.32M$40.91M$45.96M$37.64M
Free cash flow$-11.69M$-20.29M$-43.37M$-32.66M$-1.21M$-63.84M$-133.91M$-134.81M$-30.04M$-53.52M$-80.56M$92.03M$-109.28M$-136.72M$-150.35M$-163.72M
Investing cash flow
Financing cash flow
Dividends paid$0.00$0.00$0.00$0.00$0.00
Share repurchases
Debt repayment
Net change in cash$51.82M$116.90M$77.01M$20.39M$30.70M$10.04M$-53.29M$-80.34M$282.36M