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§ Private Profile · Boston, MA, USA
Biotechnology company developing branched siRNA therapeutics for neurodegenerative diseases via RNA interference in the CNS.
Boston-based Atalanta Therapeutics is a biotechnology company developing branched small interfering RNA therapeutics to treat severe neurodegenerative conditions, including Huntington's, Alzheimer's, and Parkinson's diseases. The organization utilizes a proprietary platform licensed from the University of Massachusetts Medical School to enable RNA interference and silence disease-causing genes throughout the brain and spinal cord. Operating with approximately 69 employees, the enterprise has secured $207 million in total financing, which includes a $110 million Series A round backed by F-Prime Capital. The firm also generates an estimated $14.6 million in revenue through milestone-driven strategic research collaborations with major pharmaceutical partners Biogen and Genentech. The company recently expanded its leadership by appointing former Biogen executive Alfred Sandrock to its board of directors. Atalanta Therapeutics was founded in 2018 by Anastasia Khvorova, Craig Mello, and Neil Aronin.
Atalanta Therapeutics has raised $207.0M across 2 funding rounds.
Atalanta Therapeutics has raised $207.0M in total across 2 funding rounds.
Atalanta Therapeutics is a Boston‑based biotechnology company developing RNA‑interference (RNAi) therapies that deliver durable, selective gene silencing across the central nervous system (CNS) using a proprietary divalent siRNA (di‑siRNA) platform[3][4].
High‑Level Overview
Atalanta builds oligonucleotide therapeutics (di‑siRNA) designed to silence disease‑causing genes in the brain and spinal cord, pursuing disease‑modifying programs for Huntington’s disease, KCNT1‑related genetic epilepsy, severe chronic pain and other neurological disorders[3][4]. The company serves patients with intractable CNS diseases, neuroscientists and biopharma partners seeking CNS delivery of RNAi modalities[4][3]. By enabling durable CNS gene knockdown, Atalanta aims to halt or substantially slow disease at the genetic source rather than only treating symptoms; its recent Series B financing is explicitly intended to advance two wholly‑owned programs toward the clinic (Huntington’s and KCNT1 epilepsy)[4].
Origin Story
Atalanta was founded by leaders in RNA interference and CNS delivery to translate foundational RNAi science into therapies; the company’s public materials emphasize ties to Nobel‑prize era RNAi discovery and to executives with prior RNAi experience (leadership includes executives with backgrounds at Dicerna/Jnana and other RNAi/rare disease companies)[2][3]. The company has attracted strategic venture and corporate investors and partners (including Genentech collaborations and a Series B that added life‑science investors to the board) as it moved from discovery toward clinical development[4][3]. Early pivotal moments include demonstrating the di‑siRNA approach for broad CNS distribution and securing significant financing (~$97M Series B, bringing total capital to date to roughly $262M) to support first‑in‑human efforts[4].
Core Differentiators
Role in the Broader Tech/Biotech Landscape
Atalanta sits at the intersection of two major trends: the maturation of RNAi/oligonucleotide therapeutics and the urgent unmet need for CNS disease‑modifying treatments. Advances in oligo chemistry and delivery have opened opportunities for systemic CNS gene silencing, and Atalanta’s di‑siRNA approach targets that technical gap[3][4]. Timing matters because regulatory and scientific precedent for oligonucleotide drugs has strengthened (several approved oligo drugs and increasing clinical experience), investor appetite for platform companies with clear translational paths has returned, and CNS genetics increasingly points to tractable single‑gene targets (e.g., Huntington’s, KCNT1 epilepsy)[4][3]. By demonstrating broad CNS delivery and moving programs to the clinic, Atalanta could materially influence how the field approaches oligonucleotide CNS therapeutics and encourage more investment into CNS delivery technologies[4][3].
Quick Take & Future Outlook
What’s next: advancing the two programs named for clinical entry (Huntington’s and KCNT1‑related epilepsy) into Phase I studies and continuing partnered development programs[4]. Key near‑term milestones to watch are IND/CTA filings, first‑in‑human safety/tolerability data, and biomarker evidence of target knockdown in the CNS[4]. Trends that will shape Atalanta’s path include the clinical safety profile of CNS‑directed oligonucleotides, ability to demonstrate durable target suppression with acceptable dosing, competitive advances in alternative CNS delivery platforms, and partnering/licensing dynamics in rare neurology. If Atalanta can show clear, durable CNS gene silencing with a favorable safety profile, it stands to accelerate adoption of RNAi for neurological diseases and become a platform leader in CNS oligonucleotide therapeutics[4][3].
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Atalanta Therapeutics has raised $207.0M in total across 2 funding rounds.
Atalanta Therapeutics's investors include Sanofi Ventures, LSP, 5AM Ventures, ARCH Venture Partners, Canaan Partners, Forbion, F-Prime Capital Partners, In-Q-Tel, Pivotal bioVenture Partners, Red Tree Venture Capital, RiverVest, Sequoia Capital.
Atalanta Therapeutics has raised $207.0M across 2 funding rounds. Most recently, it raised $97.0M Series B in January 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Jan 1, 2025 | $97M Series B | Sanofi Ventures, LSP | 5AM Ventures, ARCH Venture Partners, Canaan Partners, Forbion, F Prime Capital, IN Q TEL, Pivotal BioVenture Partners, RED Tree Venture Capital, Rivervest, Sequoia Capital, The Column Group | Announced |
| Jan 1, 2021 | $110M Series A | Jessica Alston | ARCH Venture Partners, Canaan Partners, F Prime Capital, IN Q TEL, Rivervest, Sanofi Ventures, Sequoia Capital | Announced |