Thomas S Bremner insider trades: BillionToOne (BLLN) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Thomas reports to the SEC
Open-market buys and sales
1 trade reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 7, 2025 | BLLN | ↑ Buy | 41,666 | $60.00 | $2.5M | Indirect | Nov 10, 2025 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other BLLN insiders
Open-market trades in the last 12 months
About Thomas S Bremner's insider trades
Thomas S Bremner is an insider at BillionToOne (BLLN). Since Nov 7, 2025, Thomas has reported 1 open-market purchase worth $2.5M and no sales on SEC Form 4. In the last 12 months: 1 buy ($2.5M).
Their filings also include grants and awards (2 filings), conversions (1 filing), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every BLLN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.