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858 Therapeutics

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Biotechnology firm developing small molecule drugs targeting oncology, neuroscience, and cardiovascular diseases

San Diego, United StatesFounded 2019Biotech & Life Sciences
Valuation $250–500M Last recorded · 2024
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for 858 Therapeutics and the history behind them.

About 858 Therapeutics

858 Therapeutics is a biotechnology startup based in San Diego, California, specializing in the development of innovative small molecule drugs. These drugs are designed to target novel therapeutic areas in oncology and neuroscience. The company's primary focus is on the emerging fields of synthetic lethality, innate immunity, and RNA modulation. In simpler terms, they are developing drugs that can target and kill cancer cells, boost the body's natural defenses, and manipulate RNA, a molecule that plays a crucial role in the coding, decoding, regulation, and expression of genes.

The company's lead program is directed at PARG, a new target in the DNA damage repair pathway. This pathway is a system within the cell that identifies and corrects damage to the DNA molecule that encodes its genetic information. The company plans to begin a phase 1 trial for this program in 2024.

858 Therapeutics serves a market that includes patients suffering from cancers resistant to current therapies. Their business model is centered around the research, development, and eventual commercialization of their small molecule drugs. The company generates revenue through the successful development and sale of these drugs.

The startup was founded by a team of industry veterans with a proven track record in pharmaceutical and biotech drug discovery. The team's collective experience in oncology and drug development is a key asset in their mission to discover innovative therapeutics.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
San Diego, United States
Employees
21
Open positions
None listed
Dealroom signal
61.7/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Oncology, Genetics and genomics, Biotech and Pharma, mRNA Medicines, Hard Tech, DT and LS, science-based
Client focus
b2b

Funding history

2 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES BOther financing Sep 2024 $50M $300M NEA · Mirae Asset Capital · Insight Partners · Versant Ventures ↗
SERIES AOther financing Sep 2021 $60M $240M Cormorant Asset Management · Logos Capital · Versant Ventures · NEA —
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Growth signals

858 Therapeutics website traffic

Latest recorded traffic for 858 Therapeutics is 3.4K monthly website visits, up 142.9% over the last three months. 858 Therapeutics's team declined 12.5% over the past year.

Latest monthly visits3.4K 3-month web change+142.9% 1-year team growth-12.5%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

8 investors on the cap table

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

Series A8 investors entered at this stage

Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 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
1 countries with
team presence
🇺🇸 United States100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about 858 Therapeutics 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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