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Hillstar Bio

Hillstar Bio

Private
Boston, MassachusettsHealthcare & Life Scienceshttps://hillstarbio.com

Last Round

Series A

Mar 25, 2025

Total Funding Raised

$67M

Company Overview

Hillstar Bio operates in Healthcare & Life Sciences and is based in Boston, Massachusetts. Its latest recorded funding round was a Series A round in March 2025.

Hillstar Bio is a biotechnology company that develops next-generation precision immunology therapies for autoimmune diseases by selectively targeting and depleting pathogenic immune cells.

Sector

Healthcare & Life Sciences

Verticals

Biotechnology, Drug Discovery, Precision Medicine

Business Model

B2B

Customer Profile

Services & Consulting

AI Layer

Non-AI

Historical Pricing

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Pricing history

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

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Hillstar Bio Comparables

Compare Hillstar Bio with similar companies based on industry and business-model similarity.

Hillstar Bio comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Santa Ana Bio
82%
Seismic
74%
AbbVie
68%
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Hillstar Bio Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AMar 25, 2025
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Key People

Founding team and executive leadership

Lauren Mifflin

COO

Executive Team

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Hillstar Bio Investors

Notable investors and investment history

Hillstar Bio investors
InvestorRounds
Droia VenturesSeries A
Frazier Life SciencesSeries A
Novo HoldingsSeries A
LifeArc VenturesSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 24, 2025

    Grew 28% QoQ, from 18 to 23 employees.

  • Jun 3, 2025

    Grew 64% QoQ, from 11 to 18 employees.

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Hillstar Bio Filings

Explore SEC and related filing metadata, where available.

Hillstar Bio filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Hillstar Bio's valuation, stock price, and market status.

Is Hillstar Bio a public or private company?

Hillstar Bio is a private company.

What is the current stock price of Hillstar Bio?

Hillstar Bio is a private company, so its shares have no public market price. Caplight tracks Hillstar Bio's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Hillstar Bio worth (valuation)?

Valuation information for Hillstar Bio is not publicly available.

Can I buy Hillstar Bio stock?

Hillstar Bio shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Hillstar Bio's last funding round?

Hillstar Bio's most recent funding round was Series A on March 25, 2025.

Who are the main investors in Hillstar Bio?

Key investors in Hillstar Bio include Droia Ventures, Frazier Life Sciences, Novo Holdings.

Will Hillstar Bio IPO soon?

No public IPO plans have been announced for Hillstar Bio.

How can I track Hillstar Bio secondary market activity?

Caplight tracks bids, offers, and trades in Hillstar Bio's shares on secondary markets.

Firmographic Details

HeadquartersBoston, Massachusetts
Employee Range15
Year Founded2023
Last FundingMar 25, 2025

Institutional Data Access

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