PRTA

Prothena Corporation plc
$9.24
-0.40 (-4.15%)
Mkt Cap 483.74M
Volume 505,130
52W Range 6.16-11.8
Sector Healthcare
Beta -0.31
EPS (TTM) -2.81
P/E Ratio -2.11
Revenue (TTM) 57.94M
Rev Growth (5Y) +62.6%
EPS Growth (5Y) N/A
AlphaVal · Fair Value
What we estimate one share is worth
$26.48
Undervalued strong signal
65.1% below fair value
Modeled from cash flows & growth.
AlphaQuality · Grade · Gated
How strong & durable the business is
F
Stable Earnings Power
30.0 / 100 pillar composite (overridden)
Steady, predictable earnings power — graded A–F vs. similar companies.

Company Description

Track Record

Showing latest 4 periods • Swipe for more
Metric 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014
Revenue 9.68M 135.16M 91.37M 53.91M 200.58M 853,000 814,000 955,000 27.52M 1.05M 1.61M 50.85M
Net Income (244.09M) (122.31M) (147.03M) (116.95M) 66.97M (111.14M) (77.68M) (155.65M) (153.24M) (160.11M) (80.61M) (7.15M)
EPS -4.53 -2.27 -2.76 -2.47 1.51 -2.78 -1.95 -3.93 -4.07 -4.66 -2.66 -0.29
Free Cash Flow (163.72M) (150.35M) (136.72M) (109.28M) 92.03M (80.56M) (53.52M) (30.04M) (134.81M) (133.91M) (63.84M) (1.21M)
FCF / Share -3.04 -2.80 -2.57 -2.31 2.08 -2.02 -1.34 -0.76 -3.58 -3.90 -2.11 -0.05
Operating CF (163.58M) (150.05M) (133.91M) (108.82M) 92.61M (80.36M) (52.97M) (28.28M) (131.18M) (117.27M) (62.45M) (683,000)
Total Assets 326.80M 547.11M 696.38M 758.03M 609.37M 332.98M 419.27M 498.80M 496.33M 459.98M 385.24M 304.12M
Total Debt 13.86M 10.84M 11.84M 6.47M 12.33M 17.84M 22.94M 51.55M 52.25M 51.32M 0 0
Cash & Equiv 307.53M 471.39M 618.83M 710.41M 579.09M 295.38M 375.72M 427.66M 417.62M 386.92M 370.59M 293.58M
Book Value 280.47M 486.93M 561.37M 622.04M 466.04M 184.01M 272.92M 323.00M 407.19M 365.40M 360.67M 289.89M
Return on Equity -0.87 -0.25 -0.26 -0.19 0.14 -0.60 -0.28 -0.48 -0.38 -0.44 -0.22 -0.02
PRTA News
PRTA Stock Rises Nearly 11% in Six Months: What's Driving It?
Jul 09, 2026 08:40 AM · zacks.com
SRPT or PRTA: Which Is the Better Value Stock Right Now?
Jun 24, 2026 08:41 AM · zacks.com
Prothena Posts Q1 Earnings as Revenues Surge on Milestone Payment
May 08, 2026 07:41 AM · zacks.com
Prothena Reports First Quarter 2026 Financial Results and Business Highlights
May 07, 2026 12:05 PM · businesswire.com
Prothena Announces Novo Nordisk Obtains Fast Track Designation from the U.S. FDA for Coramitug (PRX004) in ATTR Amyloidosis with Cardiomyopathy
Apr 27, 2026 12:05 PM · businesswire.com
Prothena Announces Leadership Team Updates
Apr 10, 2026 12:05 PM · businesswire.com
Wall Street Analysts Think Prothena (PRTA) Could Surge 120.19%: Read This Before Placing a Bet
Mar 26, 2026 06:56 AM · zacks.com
Prothena Partners Present Data Supporting Next Generation Treatments for Parkinson's and Alzheimer's Disease at AD/PD™ 2026
Mar 21, 2026 12:05 PM · businesswire.com
Prothena Announces Achievement of $50 Million Clinical Milestone Payment from Novo Nordisk Related to Ongoing Phase 3 Clinical Trial for Coramitug (Formerly PRX004) in ATTR Amyloidosis with Cardiomyopathy
Mar 09, 2026 12:05 PM · businesswire.com
Prothena: A Hold With 2 Late-Stage Programs Underway But With Caution
Mar 03, 2026 08:50 AM · seekingalpha.com