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- Prothena Corp.
Prothena Corp. Valuation Multiples
Discover revenue and EBITDA valuation multiples for Prothena Corp. and similar public comparables like Blau FarmacΓͺutica, Aquestive Therapeutics, Abclon, Contineum Therapeutics and more.
Prothena Corp. Overview
About Prothena Corp.
Prothena Corp PLC is a clinical biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare and peripheral amyloid diseases. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including ATTR amyloidosis [Coramitug (PRX004)], Alzheimerβs disease (PRX123), Neurodegeneration (PRXPRX019), and Others.
Founded
2012
HQ

Employees
163
Website
Sectors
Financials (LTM)
EV
$193M
Valuation Multiples
Start free trialProthena Corp. Financials
Prothena Corp. reported last 12-month revenue of $39M.
In the same LTM period, Prothena Corp. generated $39M in gross profit and had net loss of ($146M).
Revenue (LTM)
Prothena Corp. P&L
In the most recent fiscal year, Prothena Corp. reported revenue of $10M and EBITDA of ($184M).
Prothena Corp. is unprofitable as of last fiscal year, with EBITDA margin of (1897%) and net margin of (2521%).
Financial data powered by Morningstar, Inc.
Prothena Corp. Stock Performance
Prothena Corp. has current market cap of $514M, and enterprise value of $193M.
Market Cap Evolution
Prothena Corp.'s stock price is $9.82.
Prothena Corp. share price decreased by 11.2% in the last 30 days, and increased by 114.1% in the last year.
Prothena Corp. has an EPS (earnings per share) of $-4.66.
| EV | Market Cap | Price 1D | Price 1M | Price 3M | Price 12M | EPS |
|---|---|---|---|---|---|---|
| $193M | $514M | 0.0% | -11.2% | 13.3% | 114.1% | $-4.66 |
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Start Free TrialProthena Corp. Valuation Multiples
Prothena Corp. trades at 4.9x EV/Revenue multiple, and (1.0x) EV/EBITDA.
EV / Revenue (LTM)
Prothena Corp. Financial Valuation Multiples
As of May 25, 2026, Prothena Corp. has market cap of $514M and EV of $193M.
Prothena Corp. has a P/E ratio of (3.5x).
Multiples above and below 250x are considered non-meaningful (n/m). Valuation data powered by FactSet, Inc. and Morningstar, Inc.
Verified Prothena Corp. Valuation Multiples
Access all public comps and forward-looking valuation multiples like EV/Revenue in 2027, based on consensus analyst estimates. Powered by FactSet and Morningstar.


Prothena Corp. Margins & Growth Rates
Prothena Corp. grew revenue by 760% but EBITDA decreased by 100% in the last fiscal year.
In the most recent fiscal year, Prothena Corp. reported EBITDA margin of (1897%) and net margin of (2521%).
Prothena Corp. Margins
Prothena Corp. Growth Rates
Data powered by FactSet, Inc. and Morningstar, Inc.
Prothena Corp. Operational KPIs
Prothena Corp.'s revenue per employee in the last FY averaged $0.1M, while opex per employee averaged $1.2M for the same period.
Prothena Corp.'s Rule of 40 is 760% (metric relevant for SaaS companies only, counted as combined revenue growth rate and EBITDA margin).
Prothena Corp.'s Rule of X is 1901% (created by Bessemer, Rule of X is another metric to measure SaaS companies, ~1.5x stronger vs. the traditional Rule of 40, counted as revenue growth rate multiplied by 2.5 plus EBITDA margin).
Data powered by FactSet, Inc. and Morningstar, Inc.
Prothena Corp. Competitors
Prothena Corp. competitors include Blau FarmacΓͺutica, Aquestive Therapeutics, Abclon, Contineum Therapeutics, XOMA Royalty, Medigen Vaccine Biologics, Kyverna Therapeutics, Wellgistics Health, Synmosa Biopharma and Genfit.
Most Prothena Corp. public comparables operate across Biopharmaceuticals and BioTech.
| EV/Revenue | EV/EBITDA | |||||
|---|---|---|---|---|---|---|
| Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| 1.5x | 1.5x | 4.9x | 5.9x | |||
| 10.1x | 9.6x | (9.1x) | (10.6x) | |||
| 156.9x | β | (45.3x) | β | |||
| β | 102.6x | (4.1x) | (3.9x) | |||
| 10.8x | 10.1x | 11.7x | 36.2x | |||
| 23.3x | 20.3x | (117.4x) | 1213.7x | |||
| β | β | (2.0x) | (1.9x) | |||
| 24.0x | β | (6.0x) | β | |||
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Start Free TrialAbout Prothena Corp.
| When was Prothena Corp. founded? | Prothena Corp. was founded in 2012. |
| Where is Prothena Corp. headquartered? | Prothena Corp. is headquartered in Ireland. |
| How many employees does Prothena Corp. have? | As of today, Prothena Corp. has over 163 employees. |
| Who is the CEO of Prothena Corp.? | Prothena Corp.'s CEO is Gene G. Kinney. |
| Is Prothena Corp. publicly listed? | Yes, Prothena Corp. is a public company listed on Nasdaq. |
| What is the stock symbol of Prothena Corp.? | Prothena Corp. trades under PRTA ticker. |
| When did Prothena Corp. go public? | Prothena Corp. went public in 2012. |
| Who are competitors of Prothena Corp.? | Prothena Corp. main competitors include Blau FarmacΓͺutica, Aquestive Therapeutics, Abclon, Contineum Therapeutics, XOMA Royalty, Medigen Vaccine Biologics, Kyverna Therapeutics, Wellgistics Health, Synmosa Biopharma, Genfit. |
| What is the current market cap of Prothena Corp.? | Prothena Corp.'s current market cap is $514M. |
| What is the current revenue of Prothena Corp.? | Prothena Corp.'s last 12 months revenue is $39M. |
| What is the current revenue growth of Prothena Corp.? | Prothena Corp. revenue growth (NTM/LTM) is 56%. |
| What is the current EV/Revenue multiple of Prothena Corp.? | Current revenue multiple of Prothena Corp. is 4.9x. |
| Is Prothena Corp. profitable? | No, Prothena Corp. is not profitable. |
| What is the current net income of Prothena Corp.? | Prothena Corp.'s last 12 months net income is ($146M). |
| How many companies Prothena Corp. has acquired to date? | Prothena Corp. hasn't acquired any companies yet (or none have been disclosed publicly). |
| In how many companies Prothena Corp. has invested to date? | Prothena Corp. hasn't invested in any companies yet (or none have been disclosed publicly). |
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