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Annexon Valuation Multiples

Discover revenue and EBITDA valuation multiples for Annexon and similar public comparables like SSY Group, ORIC Pharmaceuticals, Avalo Therapeutics, Arbutus Biopharma and more.

Annexon Overview

About Annexon

Annexon Inc is a clinical-stage biopharmaceutical company developing a pipeline of novel therapies for patients with classical complement-mediated disorders of the body, brain, and eye. Its pipeline is based on its platform technology addressing well-researched classical complement-mediated autoimmune and neurodegenerative disease processes, both of which are triggered by aberrant activation of C1q. Its pipeline of product candidates is designed to block the activity of C1q and the entire classical complement pathway in a broad set of complement-mediated diseases. Its product candidates are ANX005, for autoimmune & neurodegenerative disorders; ANX007, for neurodegenerative ophthalmic disorders; ANX1502 for Oral small molecule; and ANX009, for systemic autoimmune diseases.


Founded

2011

HQ

United States

Employees

100

Financials (LTM)

Revenue:
EBITDA: ($210M)

EV

$669M

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Annexon Financials

Annexon reported last 12-month revenue of — and negative EBITDA of ($210M).

In the same LTM period, Annexon generated — in gross profit, ($210M) in EBITDA losses, and had net loss of ($202M).

Revenue (LTM)


Annexon P&L

In the most recent fiscal year, Annexon reported revenue of and EBITDA of ($214M).

Annexon is unprofitable as of last fiscal year, with EBITDA margin of — and net margin of —.

See analyst estimates for Annexon
LTMLast FY202320242025202620272028
EBITDA($210M)($214M)($142M)($151M)($214M)
Net Profit($202M)($207M)($134M)($138M)($207M)

Financial data powered by Morningstar, Inc.

Annexon Stock Performance

Annexon has current market cap of $868M, and enterprise value of $669M.

Market Cap Evolution


Annexon's stock price is $5.30.

Annexon share price decreased by 9.7% in the last 30 days, and increased by 159.8% in the last year.

Annexon has an EPS (earnings per share) of $-1.26.

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EVMarket CapPrice 1DPrice 1MPrice 3MPrice 12MEPS
$669M$868M0.0%-9.7%-5.2%159.8%$-1.26

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Annexon Valuation Multiples

Annexon trades at (3.2x) EV/EBITDA.

See NTM and 2027E valuation multiples for Annexon

EV / Revenue (LTM)


Annexon Financial Valuation Multiples

As of May 25, 2026, Annexon has market cap of $868M and EV of $669M.

Annexon has a P/E ratio of (4.3x).

LTMLast FY202320242025202620272028
EV/EBITDA(3.2x)(3.1x)(4.7x)(4.4x)(3.1x)
EV/EBIT(3.2x)(3.1x)(4.7x)(4.3x)(3.1x)
P/E(4.3x)(4.2x)(6.5x)(6.3x)(4.2x)
EV/FCF(3.8x)(3.6x)(5.5x)(5.7x)(3.6x)

Multiples above and below 250x are considered non-meaningful (n/m). Valuation data powered by FactSet, Inc. and Morningstar, Inc.

Verified Annexon 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.

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Annexon Margins & Growth Rates

Annexon decreased EBITDA by 6% in the last fiscal year.

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Annexon Growth Rates

FY+1/FY23/2424/2525/2626/2727/2828/29
EBITDA Growth(6%)7%41%(6%)
EBIT Growth(8%)7%40%(8%)
Net Profit Growth(8%)3%50%(8%)
FCF Growth(12%)(3%)58%(12%)

Data powered by FactSet, Inc. and Morningstar, Inc.

Annexon Operational KPIs

Annexon's revenue per employee in the last FY averaged $0.0M, while opex per employee averaged $2.2M for the same period.

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Last FY202620272028
Revenue per Employee$0.0M
Opex per Employee$2.2M

Data powered by FactSet, Inc. and Morningstar, Inc.

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Annexon Competitors

Annexon competitors include SSY Group, ORIC Pharmaceuticals, Avalo Therapeutics, Arbutus Biopharma, Guizhou Sanli, HK inno.N, MeiraGTx, Sana Biotechnology, Janux Therapeutics and Cullinan Therapeutics.

Most Annexon public comparables operate across Biopharmaceuticals and BioTech.

EV/RevenueEV/EBITDA
Last FYLTM2027ELast FYLTM2027E
SSY Group2.2x8.1x
ORIC Pharmaceuticals(4.1x)(3.9x)
Avalo Therapeutics13191.7x21886.2x(10.7x)
Arbutus Biopharma54.3x17.1x(23.1x)
Guizhou Sanli3.6x40.4x
HK inno.N1.5x1.5x10.5x10.0x
MeiraGTx10.7x12.7x(9.7x)
Sana Biotechnology(4.5x)(4.6x)

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Annexon Funding History

Before going public, Annexon raised $253M in total equity funding, across 4 rounds.


Annexon Funding Rounds

DateStageRaised FromRaisedValuationRev. MultipleDeal Summary
Jul-20Series CRedmile Group$100M
Dec-18Series CAdage Capital Management; Bain Capital; Blackstone Technology Group; New Enterprise Associates; Novartis Venture Fund; Satter Investment Management; Surveyor Capital$75MAnnexon Biosciences closed a $75 million Series C financing on December 19, 2018, led by new investor Bain Capital Life Sciences with participation from Surveyor Capital (a Citadel company) and Adage Capital Partners. Existing investors including NEA, Blackstone Life Sciences, Novartis Venture Fund, and Satter Investment Management also participated in the round. The company is a clinical-stage biopharmaceutical company focused on developing novel therapeutics through inhibition of the classical complement pathway, targeting diseases of high unmet need in autoimmune, neurodegenerative, and ophthalmic disorders. Annexon's lead programs include ANX005, a monoclonal antibody drug candidate for autoimmune and neurodegenerative diseases, and ANX007 IVT, an antigen binding fragment designed for ophthalmic applications, with Phase 1b proof-of-principle studies expected to read out in 2019. As a clinical-stage company at the time of the financing, Annexon had not yet commercialized products and therefore did not report revenue or EBITDA metrics. The post-money valuation was not disclosed in the financing announcement or available public sources.
Jun-16Series BClarus Ventures; Correlation Ventures; New Enterprise Associates; Novartis Venture Fund; Satter Investment Management$44MAnnexon Biosciences is a clinical-stage biopharmaceutical company developing complement medicines targeting classical complement-mediated autoimmune, neurodegenerative, and ophthalmic disorders. The company's pipeline includes product candidates like ANX005, ANX007, and ANX009 designed to block C1q activity and the classical complement pathway.
Dec-14Series AClarus Ventures; Novartis Venture Fund; Satter Investment Management$34MAnnexon Biosciences, a Stanford University spinout founded in 2011, closed a $34 million Series A-1 funding round on approximately December 15, 2014, led by Novartis Venture Fund with participation from Satter Investment Management and Clarus Ventures. The company focuses on developing therapies targeting the classical complement pathway to treat neurodegenerative and autoimmune disorders by inhibiting C1q, the initiating protein in complement activation that contributes to nerve cell loss. Its lead candidate, ANX005, aims to address conditions such as Huntington's disease, Alzheimer's, and autoimmune diseases. Prior to this round, Annexon had raised $1 million in a 2011 seed round from Fidelity Biosciences Research Initiative. The funding supports advancement of ANX005 into early-stage development, with the small team planning to remain lean while validating efficacy across multiple indications. CEO Doug Love, formerly of Elan, and CSO Ted Yednock, inventor of Tysabri, lead the virtual biotech. Novartis Venture Funds' managing director Campbell Murray highlighted the innovative approach to complement-mediated neurodegeneration. This Series A-1 preceded later rounds, including a $44 million Series B in 2016 led by New Enterprise Associates with participation from Novartis Venture Fund, Clarus, Satter, and Correlation Ventures, and a $75 million Series C in 2018 led by Bain Capital Life Sciences, bringing total funding to $154 million by then.

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About Annexon

When was Annexon founded?Annexon was founded in 2011.
Where is Annexon headquartered?Annexon is headquartered in United States.
How many employees does Annexon have?As of today, Annexon has over 100 employees.
Who is the CEO of Annexon?Annexon's CEO is Douglas Love.
Is Annexon publicly listed?Yes, Annexon is a public company listed on Nasdaq.
What is the stock symbol of Annexon?Annexon trades under ANNX ticker.
When did Annexon go public?Annexon went public in 2020.
Who are competitors of Annexon?Annexon main competitors include SSY Group, ORIC Pharmaceuticals, Avalo Therapeutics, Arbutus Biopharma, Guizhou Sanli, HK inno.N, MeiraGTx, Sana Biotechnology, Janux Therapeutics, Cullinan Therapeutics.
What is the current market cap of Annexon?Annexon's current market cap is $868M.
Is Annexon profitable?No, Annexon is not profitable.
What is the current EBITDA of Annexon?Annexon has negative EBITDA and is not profitable.
What is the current EV/EBITDA multiple of Annexon?Current EBITDA multiple of Annexon is (3.2x).
What is the current FCF of Annexon?Annexon's last 12 months FCF is ($178M).
What is the current EV/FCF multiple of Annexon?Current FCF multiple of Annexon is (3.8x).
How many companies Annexon has acquired to date?Annexon hasn't acquired any companies yet (or none have been disclosed publicly).
In how many companies Annexon has invested to date?Annexon hasn't invested in any companies yet (or none have been disclosed publicly).

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