BLLN: SEC Form 4 filed by BillionToOne Inc.
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Historical context for BLLN
Across the 26 sessions after earlier BLLN headlines, the stock closed higher 13 times and lower 13 times, with a median move of 4.2% in either direction. This shows timing only: many things move a stock in a session, and these figures do not show that any headline caused a move.
| Session | Earlier headline | BLLN | SPY |
|---|---|---|---|
| Oct 14, 2026 | BillionToOne to Report Third Quarter 2026 Financial Results on November 4, 2026 | +3.6% | -1.1% |
| Oct 7, 2026 | BillionToOne’s Tissue-Free Northstar Response® Demonstrates On-Par to Superior Cancer Treatment Monitoring vs. Tumor-Informed Assay, New Peer-Reviewed Study Finds | -4.2% | -0.2% |
| Sep 3, 2026 | BillionToOne to Participate in the Wells Fargo 21st Annual Healthcare Conference | +3.5% | +1.0% |
| Sep 2, 2026 | Canaccord Genuity initiated coverage on BillionToOne with a new price target | +4.1% | +0.4% |
| Sep 1, 2026 | BillionToOne Launches Northstar Origin, a New Liquid Biopsy Test to Help Identify Tissue of Origin | +1.8% | -0.7% |
| Aug 18, 2026 | Largest Prospective Study in General-Risk Pregnancies Strengthens Evidence for cfDNA Fetal Risk Assessment as a Primary Screen for Recessive Conditions | -6.3% | -0.7% |
Earlier insider filings at BLLN
- Oct 16, 2026Chairman and CEO Atay Oguzhan sold $1,090,575 worth of shares (11,000 units at $99.14) as part of a pre-agreed trading plan (SEC Form 4)
- Oct 14, 2026Chairman and CEO Atay Oguzhan sold $1,823,450 worth of shares (19,334 units at $94.31) as part of a pre-agreed trading plan (SEC Form 4)
- Oct 13, 2026SEC Form 4 filed by BillionToOne Inc.
- Oct 7, 2026SVP of Laboratory Operations Ten Bosch John Roderick sold $297,995 worth of shares (2,834 units at $105.15) as part of a pre-agreed trading plan (SEC Form 4)
- Oct 7, 2026Chief Technology Officer Tsao David sold $2,162,950 worth of shares (20,000 units at $108.15) as part of a pre-agreed trading plan (SEC Form 4)
Quantisnow market dataNASDAQ
BLLN
BillionToOne Inc.
- Market cap
- 30-day
- Sector
- Health Care
- Industry
- Medical Specialities
- Listed since
- 2025
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