Thomas S. Bremner

Thomas S. Bremner is a declared insider of BillionToOne, Inc., with filings sourced from SEC (Form 4). The record holds 31 filings, for trades running from 6 November 2025 to 10 June 2026.

The open-market record is one-sided, with 6 purchases worth €2.2M and not one sale. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 2 share grants.

Half of the purchases are above €248k and half below. The 6 purchases reviewed show no overlap with other insiders buying the same stock within a month. For 6 purchases whose 90-day window has closed, the share price was higher on day 90 than the day after publication in 0% of cases, with a median move of -10.9%. This is a record of the past, not a forecast.

The newest entry dates from 12 June 2026: a share grant, in BillionToOne, Inc. The last insider purchase was made public on 10 November 2025, 345 days ago. Filings reach the SEC (Form 4) feed a median of 3 days after the trade. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.