BillionToOne, Inc. Stock: price and insider trades · United States

BillionToOne, Inc., founded in 2016, is a listed company based in United States. Its directors and officers file their transactions with SEC (Form 4). Over the twelve months to 18 October 2026, 399 filings were filed, from 19 insiders.

On the market, 2 insiders bought (7 purchases totalling €2.3M) while 6 insiders sold (158 sales totalling €30.1M). The totals do not cover 35 filings with an undisclosed amount. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. At €2.0M, the sale published on 7 August 2026 by Atay Oguzhan is the largest of the period (0.043% of market cap). Those buying include 2 senior executives.

In all, 1 purchase was made within 30 days of a purchase by another insider of the company. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase. The most recent open-market purchase was published on 12 November 2025, 340 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification.

Across the 5,816 companies tracked on its exchange, the median is 19 filings; at 399 filings, this issuer sits above that mark. Looking back to 2025, when coverage begins, insiders filed 7 purchases and 159 sales. On the fundamentals side, the SEC filing (10-K) for the period ending 31 December 2025 lists revenue at 305.1 m USD and net income at 7.5 m USD.

Other companies in the same market with recent insider buying flagged by our signals: GameStop Corp. and Heico Corp. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.