BLLN insider trading
NasdaqGS HealthcareBillionToOne, Inc. — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.
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 has scored 260 insider transactions for BLLN since Nov 6, 2025. The most recent filing in our index is dated May 11, 2026.
Across the full history, 11 open-market purchases
and 0 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.
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Frequently asked
- How many insider trades does FilingIQ track for BLLN?
- FilingIQ tracks 260 Form 4 insider transactions for BLLN (BillionToOne, Inc.), covering filings from Nov 6, 2025 onwards. 26 of those were filed in the last 90 days.
- Are BLLN insiders net buyers or net sellers?
- Across the full Form 4 history for BLLN, 11 transactions (4%) were open-market purchases and 0 (0%) 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 parses the raw XML, normalises insider identity across reporting variations, and scores each trade 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.