FilingIndex
SC 13DThe Stakes

BillionToOne, Inc. files SC 13D

Filed Jan 20, 2026 · 5mo ago · Accession 0001104659-26-005176

Plain English

Activist stake — an investor has acquired more than 5% with intent to influence.

Read the source below for the full document.

Filing details
Ticker
BLLN
CIK
2070849
Form type
SC 13D
Filing date
Jan 20, 2026
Report date
Document
Size