Nancy Joann Johnson is a corporate insider at BillionToOne, Inc. (BLLN). Johnson has reported 6 insider filings with the SEC since 2025. The most recent filing was in July 2026.
Every role Nancy Joann Johnson has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
BillionToOne, Inc. (BLLN)2 filingsLatest filing:
Nancy Joann Johnson is Senior Vice President of Sales and Commercial Operations of BillionToOne, Inc. (BLLN). 4 SEC Form 4 filings on record going back to 2025, most recently on 20 July 2026. Most recent open-market trade: sold $118K of BLLN on 20 July 2026. Lifetime open-market purchases: $414K. Lifetime open-market sales: $3.32M.
Every recent SEC Form 4 transaction Nancy Joann Johnson has reported, most recent first.
InsiderAlpha's records for Nancy Joann Johnson go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $414K (1 buy totaling $414K). The largest single buy on record is $414K of BLLN in 2025. Sales side: 12 recorded sales totaling $3.32M, so the filing history runs sell-heavy by dollar value. 12 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
Insiders who reported open-market trades in the last 12 months at the companies Nancy Joann Johnson files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Nancy Joann Johnson is a corporate insider, tracked as Senior Vice President of Sales and Commercial Operations of BillionToOne, Inc. (BLLN). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 1 open-market purchase ($414K) and 12 open-market sales ($3.32M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial