BillionToOne, Inc.

BillionToOne, Inc. (BLLN) priced its initial public offering on Nov 6, 2025 at $60.00 per share, above its $49.00–$55.00 range, raising $273.1M, and listed on Nasdaq Global Select. At the IPO price its market capitalization was about $2.68B. Gunderson Dettmer advised the company and Cooley advised the underwriters.

BillionToOne, Inc. is a molecular diagnostics company built on its single molecule NGS (smNGS) platform, which detects and quantifies genetic targets using patented quantitative counting templates, and offers prenatal tests among its products.

Status

IPO

Ticker

BLLN

Exchange

Nasdaq Global Select

Priced

Nov 6, 2025

IPO price

$60.00

Price range

$49.00–$55.00

Raised

$273.1M

Market cap at IPO price

$2.68B

First filed

Oct 7, 2025

Company counsel

Gunderson Dettmer

Underwriters' counsel

Cooley

Sector

Healthcare

Country / state

CA

Market cap at IPO price = shares outstanding after the offering (all classes, before the over-allotment option) × the IPO price, from the final prospectus.