What stage does BioRock Ventures invest at?

BioRock Ventures invests at the Pre-Seed, Seed, Series A, Late Stage stages.

What sectors does BioRock Ventures focus on?

BioRock Ventures focuses on Biotech, Healthtech, Medical Devices.

Where is BioRock Ventures located?

BioRock Ventures is headquartered in San Francisco, US.

BioRock Ventures

Venture capitalActively deploying

San Francisco · Pre-Seed–Late Stage · 1 people tracked

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Investment thesis

BioRock Ventures makes seed-sized investments in private life science companies creating best-in-class, FDA-regulated therapeutic medicines. The fund backs therapeutics startups across all disease areas, all stages, and all therapeutic modalities, participating from angel and seed through Series A and up to pre-IPO or M&A events.

Invests inBiotech Healthtech Medical DevicesPalo AltoSan FranciscoSan Francisco Bay AreaUnited States

Source: firm website, verified Aug 7, 2026.

Stage

Pre-Seed–Late Stage

San Francisco, California, US

Instruments

Equity

Founded

2019

Tracked investments

Team · 1 people

from the firm's website

Mary Wheeler· Managing Director· Bay Area, CAin

Founding managing partner of BioRock Ventures with two decades of therapeutics operating experience, beginning as a startup founder in Boston and later leading M&A, licensing, and strategy at pharmaceutical companies including Johnson & Johnson and Forest (now Allergan/AbbVie). She has consulted as CBO for dozens of early-stage ventures and, over the past decade, helped seed two companies that each achieved IPO exits valued over $1 billion. She is a Kauffman Fellow with an MBA from MIT Sloan, a PhD from Princeton, and an undergraduate degree from Yale.

m•••@biorockventures.comreveal

What they invest in

from 4 of 6 portfolio companies

Biotech ×4Healthtech ×2

HQs:United States×3

Investments · 6 tracked

founders shown can be your intro path

AN2 Therapeuticsan2therapeutics.cominNASDAQ: ANTX

Vaxcytevaxcyte.comNASDAQ: PCVX

Vaxcyte develops broad-spectrum vaccines to prevent bacterial infections, using a cell-free protein synthesis platform and synthetic chemistry techniques.

BiotechHealthtech

PartnerMary Wheeler· solo GP

AN2

PartnerMary Wheeler· solo GP

Immusoftimmusoft.com

Immusoft develops novel therapeutic treatments by programming B cells to produce therapeutic proteins for patients with rare and other diseases with significant unmet medical need.

BiotechSeattle, US

Matthew Scholz(Founder)Mark Ahn, Ph.D.(Director)Sean Ainsworth(Chief Executive Officer)

Primmune Therapeuticsprimmunerx.comin 𝕏

Primmune Therapeutics develops PRTX007, an orally administered, systemically active TLR7 agonist that activates interferon-associated innate immune pathways for use in cancer immunotherapy.

BiotechHealthtechCarlsbad, US

PTM Therapeutics, Inc.ptmthera.com

PTM Therapeutics is a biotech company developing therapeutic antibodies that target Post Translational Modifications (PTMs) to create more disease-specific targets.

Biotech

Exits · 2

IPOs and acquisitions across the tracked portfolio

AN2 TherapeuticsNASDAQ: ANTXVaxcyteNASDAQ: PCVX

Frequently asked questions

What stage does BioRock Ventures invest at?: BioRock Ventures invests at the Pre-Seed, Seed, Series A, Late Stage stages.
What sectors does BioRock Ventures focus on?: BioRock Ventures focuses on Biotech, Healthtech, Medical Devices.
Where is BioRock Ventures located?: BioRock Ventures is headquartered in San Francisco, US.

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