Third Rock Ventures
Boston, MA · Invests in US; Europe; MENA · Website
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🔒 $•• – $••Thesis
Breakthrough science merged with operational rigor creates transformational opportunities in life sciences. We identify emerging fields at the intersection of science and unmet medical need, then actively shape company formation working with scientific founders and expert advisors to design strategy from inception.
Likely not a fit for
Pure device or hardware plays without therapeutic applications, non-scientific founding teams, ventures prioritizing capital gains over patient impact
How they invest
- Lead or follow
- Usually leads
- Typical decision
- ~1 month
- Warm intro
- Preferred
- Involvement
- Takes a board seat
- Fund status
- Actively deploying
- Assets under mgmt
- $1.1B
- Decision process
- Partnership vote
Partners & team
6 contacts on file
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Tango Therapeutics is leveraging the principle of synthetic lethality to develop genetically targeted therapies for specific tumors, focusing on genetically defined subsets of cancers with limited treatment options.
Maze Therapeutics is a clinical-stage biopharmaceutical company focused on developing breakthrough precision medicines for common diseases, particularly chronic kidney disease, leveraging insights from human genetics and their proprietary Maze Compass platform.
Rapport Therapeutics is a clinical-stage biopharmaceutical company focused on the discovery and development of precision small molecule medicines for central nervous system (CNS) disorders. Their RAP technology platform allows for targeted drug development that aims to reduce side effects associated with traditional neuroscience drugs.
Septerna is a biotechnology company focused on pioneering GPCR drug discovery through its proprietary Native Complex Platform™, aiming to develop oral small molecule therapies targeting GPCRs across various therapeutic areas.
Sage Therapeutics is an award-winning biopharmaceutical company with over 30 years of experience in developing and commercializing products that treat central nervous system (CNS) diseases.
Blueprint Medicines is focused on developing innovative therapies for patients with mast cell disorders and solid tumors, utilizing a proven drug discovery platform and robust clinical development infrastructure.
Syremis Therapeutics is a clinical-stage biopharmaceutical company developing novel medicines to make a profound impact on the treatment of mental health disorders. The company’s neuropsychiatric pipeline is rooted in emerging and clinically validated mechanisms of action, including muscarinic M1/M4 agonism and next-generation NMDA antagonism.
Azalea Therapeutics is enabling precision genome engineering directly inside the body, with an initial focus on creating cancer immunotherapies in vivo. The company uses precision genome editing tools to engineer T cells within the patient, employing Envelope Delivery Vehicles (EDVs) to deliver genetic modifications safely and effectively.
Insitro is a drug discovery company that leverages machine learning and large-scale data to develop new medicines more efficiently. They focus on understanding complex biological systems to create transformative therapies in areas such as metabolism, oncology, and neuroscience.
Flare Therapeutics is focused on developing small molecule medicines that target transcription factors to treat diseases, particularly in precision oncology. Their pipeline includes programs for advanced urothelial cancer and prostate cancer, leveraging a unique approach to drug discovery.
Candid Therapeutics is a biotech company focused on developing treatments for fungal infections.
Recent activity
- Apr 2026
Terremoto Biosciences
Series C · Lead
- Dec 2025
Syremis Therapeutics
Series A · Lead
- Nov 2025
Azalea Therapeutics
Series A · Lead
- Oct 2025
Tango Therapeutics
Growth · Lead
- Oct 2025
Flare Therapeutics
Series A · Lead
- Sep 2025
Rapport Therapeutics
Series A · Lead
- Jul 2025
ARTBIO
Series B · Lead
- Jun 2025
Corvia Medical
Late VC · Lead
Third Rock Ventures in the news
The Business Journals
Third Rock Ventures targets $750M for seventh fund, filing shows
3 months ago
Fierce Biotech
Fierce Biotech Fundraising Tracker '25: Atavistik adds $120M; Syneron Bio secures new funds
8 months ago
BioCentury
Third Rock backs Steve Paul’s latest schizophrenia spinout in $165M round: Venture Report
8 months ago
Global Venturing
Drug developer Biogen unveils VC investment arm
10 months ago
FirstWord Pharma
With $82M in funding, Doudna's latest venture will tackle in vivo CAR-Ts
10 months ago
GlobeNewswire
Azalea Therapeutics Launches with $82 Million Financing to
10 months ago
The Motley Fool
Is Tango Therapeutics Stock a Buy, Sell, or Hold After Major Shareholder Third Rock Ventures Sold Nearly Half a Million Shares?
10 months ago
Pulse 2.0
T.Rx Capital: $77.5 Million Fund I Launched To Invest In Startups
11 months ago
MobiHealthNews
T.Rx Capital secures $77.5M to fund early-stage healthcare companies
11 months ago
venturecapitaljournal.com
Moderna co-founder collects $77.5m for T.Rx Capital
11 months ago
Fierce Biotech
Moderna co-founder Robert Langer's son launches new VC with $77.5M, backing from dad
11 months ago
The Boston Globe
Third Rock tops STAT’s VC rankings, boosted by early biotech investments
Aug 2025
STAT
Third Rock tops STAT’s VC rankings, boosted by early biotech investments
Aug 2025
Fierce Biotech
Third Rock-backed Merida launches with $121M series A to fund autoimmune pipeline
Apr 2025
BioPharma Dive
Biotech investors, including Third Rock, pump $100M into a startup’s genetic medicine for ALS
Nov 2024
Swarthmore College
David Kaufman '94 :: Board of Managers
Jul 2024
Timmerman Report
Investing in the Future of Medicine: Reid Huber on The Long Run
Nov 2023
Labiotech.eu
Biotech companies to benefit from Third Rock Ventures $1.1B fund
Jun 2022
pharmalive.com
In Tough Biotech Market, Third Rock Raises New $1.1B Fund
Jun 2022
STAT
Third Rock Ventures plots next chapter after raising $1.1 billion fund
Jun 2022
Fierce Biotech
'Third Rock forever': Firm's latest $1.1B funding round will create 10 new biotechs
Jun 2022
biopharmadive.com
With biotech in retreat, Third Rock raises $1B for life sciences investing
Jun 2022
The Boston Globe
Third Rock raises $1.1 billion for its largest fund yet
Jun 2022
Medical Marketing and Media
Third Rock Ventures promotes former Merck scientist to partner
Jan 2022
STAT
At biotech venture capital firms, collecting 'consulting fees' from startups has become widespread
Dec 2021
C&EN
Flare Therapeutics launches to target transcription factors
May 2021
BioSpace
Third Rock Venture to Seed Life Science Companies with $770 Million Fund
Jun 2019
Fierce Biotech
Third Rock names ex-Foundation executive Steven Kafka as venture partner
Aug 2018
The Boston Globe
Third Rock raises $616m for fourth biotech venture fund
Oct 2016
biopharmadive.com
Third Rock Ventures secures $616M in new biotech fund
Oct 2016
Forbes
Third Rock Ventures, One of Biotech's Daring Investors, Raises $616M For More Startups
Oct 2016
Fortune
Third Rock Ventures: Giving birth to a new generation of biotechs
Feb 2015
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