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Syndax Pharmaceuticals

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Focused on developing an HDAC inhibitor for solid tumors and hematological tumors

Waltham, United StatesFounded 2005Biotech & Life Sciences
Valuation $1.67B Market cap · 2026
Revenue $345M Latest reported FY
Total funding $100–500M Disclosed equity funding

About Syndax Pharmaceuticals

Syndax Pharmaceuticals is a biopharmaceutical company focused on developing and commercializing innovative therapies for cancer patients. The company primarily serves patients with difficult-to-treat cancers, including hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) breast cancer. Syndax operates in the highly competitive oncology market, which involves the development and sale of drugs and treatments for various types of cancer.

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The company's business model revolves around research and development (R&D) of new cancer therapies, conducting clinical trials to test their efficacy and safety, and eventually bringing these therapies to market. Syndax generates revenue through the sale of its pharmaceutical products once they receive regulatory approval. Additionally, the company may engage in partnerships or licensing agreements with other pharmaceutical companies to further monetize its innovations.

Syndax's flagship product, Entinostat, is currently undergoing clinical trials in combination with Exemestane for the treatment of HR+, HER2- breast cancer. The results of these trials are crucial for the company's future growth and market positioning. The company has also been active in raising capital through public offerings of common stock, which helps fund its ongoing R&D efforts and operational expenses.

In summary, Syndax Pharmaceuticals is dedicated to advancing cancer treatment through innovative drug development, targeting underserved patient populations, and leveraging clinical trial results to bring new therapies to market. The company's financial health is supported by strategic capital raises and a focus on high-potential oncology treatments.

Source: Dealroom company data

At a glance

Founded
2005
Headquarters
Waltham, United States
Listing
IPO 2016
Sector
Biotech & Life Sciences
Power Law
Unicorn$1–10B valuation tierThoroughbred$100M+ revenue

Latest news

Press, funding announcements and product moves mentioning Syndax Pharmaceuticals.

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Investors

18 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A5 investors entered at this stage

  • MPM BioImpact
  • Domain Associates
  • Avalon Ventures
  • RMI Partners
  • Forward Ventures

Series B and later13 investors entered at this stage

Team profiled 20 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 8 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
6 countries with
team presence
🇺🇸 United States98.2%
🇸🇬 Singapore0.4%
🇪🇸 Spain0.4%
🇦🇺 Australia0.4%
🇨🇭 Switzerland0.4%
Top 5 of 6 shown
Web traffic by country
15K monthly visits
across markets
🇺🇸 United States58%
🇨🇦 Canada19.3%
🇬🇧 United Kingdom11.3%
🇮🇳 India8%
🇵🇭 Philippines2%
Top 5 markets shown

Patents

Estimated portfolio value
$12M

19 active patent families included in this estimate.

A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.

Explore the patent portfolioPatent records, technology areas and peer comparisonsBook a demo

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Syndax Pharmaceuticals on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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