Atsena

formerly ATSENA THERAPEUTICS, INC.

Atsena is a biotech company in Durham, United States, founded in 2020. It has raised $229.5M across 3 rounds, most recently a $150.0M Series C in April 2025.

Focused on bringing the life-changing power of genetic medicine to reverse or prevent blindness

Employees
11–50
Founded
2020
Business Model
B2B
Total Funding
$229.5M
Last Round
$150.0M Series CApr 2025
Rounds
3

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

Indexed holds 3 funding rounds and 7 investors for this company. The full record is or through the API.

About

Atsena Therapeutics is a clinical-stage gene therapy company developing best-in-class treatments for the reversal or prevention of blindness caused by inherited retinal diseases (IRDs). Its pipeline is powered by novel adeno-associated virus (AAV) technology, including proprietary spreading capsids, tailored to overcome the anatomical hurdles of ocular gene delivery. Lead programs include ATSN-201 in a Phase I/II trial for X-linked retinoschisis (XLRS) and ATSN-101 in a Phase I/II trial for Leber congenital amaurosis type 1 (LCA1). The company was founded by pioneers in ocular gene therapy and is headquartered in Durham, North Carolina.

Summary

It lists 11–50 employees. It has raised $229.5M in total across 3 rounds, most recently a $150.0M Series C round in Apr 2025. Investors include Hatteras Venture Partners, Bain Capital Life Sciences and Wellington Management.

Tech & App Stack

4 technologies & apps tracked

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Funding History

Data from Indexed.vcUpdated
Series CSeries CApr 2025
$150.0M

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Funding: Series A through Series C. Amounts, valuations, and investors where available.

Investors

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