BillionToOne, Inc. 8-K

What Happened
BillionToOne, Inc. (BLLN) filed a Form 8‑K on January 12, 2026 announcing that it has reiterated its financial guidance for the full year ended December 31, 2025 and has issued initial guidance for the full year 2026. The company attached a press release dated January 12, 2026 (Exhibit 99.1) and posted its J.P. Morgan Healthcare Conference presentation to the investor relations site under “Events & Presentations.”

Key Details

• Filing date: January 12, 2026; press release attached as Exhibit 99.1.
• Action: Reiterated full‑year 2025 guidance and initiated full‑year 2026 guidance (no new numeric figures provided in the 8‑K).
• Presentation: Company presentation from the J.P. Morgan Healthcare Conference posted to https://investors.billiontoone.com/ under “News and Events” → “Events & Presentations.”
• Administrative: The report was signed by CFO Ross Taylor; the furnished materials are disclosed under Regulation FD and are “furnished,” not “filed,” for Section 18 liability purposes.

Why It Matters
Guidance updates are a primary way management communicates expectations for future revenue and operating results. Reiterating 2025 guidance confirms the company’s prior outlook, while initiating 2026 guidance provides investors with the first official forward view for the new year. The conference presentation and press release are sources investors can review for any additional context or metrics. Note that the 8‑K states the materials are furnished (limited legal liability) rather than formally filed.