BLLN insider trading
NasdaqGS HealthcareBillionToOne, Inc.: insider trade history from SEC Form 4 filings.
About BillionToOne, Inc.
BillionToOne, Inc., a precision diagnostics company, quantifies biology to create molecular diagnostics. The company provides molecular counting platform, which is designed to detect and measure DNA molecules at the single-count level to help enhance disease detection. It also offers UNITY Complete, a non-invasive prenatal screen that assesses fetal risk for aneuploidies, recessive conditions, and fetal antigens from a maternal blood draw; Northstar Select, a liquid biopsy test that provides a list of mutations that are present in the tumor and types of mutations detected that include deletions, insertions, and point mutations; and Northstar Response, a methylation-based assay that quantifies the amount of cancer at the single molecule level without requiring a tissue biopsy, enabling real-time monitoring of patient response to therapy with unprecedented precision. BillionToOne, Inc. was incorporated in 2016 and is headquartered in Menlo Park, California.
Company website: www.billiontoone.com
BLLN insider activity at a glance
FilingIQ tracks 385 insider transactions for BLLN in filings since Nov 10, 2025. The most recent transaction is dated Sep 28, 2026.
Across the full history, 11 open-market purchases
and 154 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on BLLN insider trades is 55.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest BLLN Form 4 filings
Most recent disclosures. Sign up to filter by score, transaction code, or insider role.
Other Healthcare tickers with recent insider activity
Top insiders trading BLLN
Frequently asked
- How many insider trades does FilingIQ track for BLLN?
- FilingIQ tracks 385 Form 4 insider transactions for BLLN (BillionToOne, Inc.), covering filings from Nov 10, 2025 onwards. 138 of those are dated within the last 90 days.
- Are BLLN insiders net buyers or net sellers?
- Across the full Form 4 history for BLLN, 11 transactions (3%) were open-market purchases and 154 (40%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does BLLN insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
- What sector is BLLN in?
- BillionToOne, Inc. (BLLN) is classified in the Healthcare sector, specifically Diagnostics & Research, with a current market capitalisation of $3.54B.
Methodology & sources
Every BLLN insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.