The filing is part of a pattern of consistent insider selling by the officer and related parties over the past three months. While the individual amount is small relative to market cap, the cumulative selling activity warrants monitoring for any change in pace or disclosure of a formal trading plan.
Price Chart
Executive Summary
Atay Oguzhan, an officer and director of BillionToOne, filed a Form 144 notice of intent to sell 8,333 Class A shares valued at approximately $983,294 via Fidelity Brokerage Services. The notice follows a series of recent insider sales by Oguzhan and related parties totaling over $15.5 million in the past three months, suggesting ongoing portfolio diversification rather than a one-time event.
Key Facts
- Insider Atay Oguzhan (Officer/Director) filed Form 144 to sell 8,333 Class A shares.
- Proposed sale value is approximately $983,294 based on filing price.
- The filing lists multiple prior sales by Oguzhan, his spouse Ezgi N. Akcinar Atay, and the Atay 2021 Dynasty Trust from August to October 2026, totaling over $15.5 million.
- The sale is proposed for execution on the same day as the filing (October 28, 2026).
- Shares are to be sold through Fidelity Brokerage Services LLC.
- Market cap of BillionToOne is $5.3B, making the proposed sale ~0.02% of market cap.
Financial Impact
Proposed sale of 8,333 shares valued at ~$983,294, representing approximately 0.02% of the company's $5.3B market cap.
Risk Factors
- Insider selling may signal reduced conviction or diversification needs; however, the filing is a notice of intent, not a completed sale.
- The filing does not disclose the reason for the sale or whether it is part of a 10b5-1 plan.
- Continued insider selling could weigh on sentiment if it accelerates.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001959173-26-007517 |
| Document: 0001959173-26-007517-index.html | 0001959173-26-007517 |
| Document: 0001959173-26-007517.txt | 0001959173-26-007517 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 28, 2026 1d ago | 144 | $114.00 | awaiting T+60 | awaiting T+60 | $114.84 (+0.74%) |
Oct 28, 2026 1d ago | 144 | $114.00 | awaiting T+60 | awaiting T+60 | $114.84 (+0.74%) |
Sep 30, 2026 29d ago | Insider Cluster | $105.76 | awaiting T+60 | awaiting T+60 | $114.84 (−8.59%) |
Sep 28, 2026 4w ago | Insider Cluster | $118.18 | awaiting T+60 | awaiting T+60 | $114.84 (+2.83%) |
Sep 23, 2026 5w ago | Insider Cluster | $124.90 | awaiting T+60 | awaiting T+60 | $114.84 (+8.05%) |
Sep 22, 2026 5w ago | Institutional Cluster | $116.07 | awaiting T+60 | awaiting T+60 | $114.84 (−1.06%) |
Sep 21, 2026 5w ago | Insider Cluster | $116.07 | awaiting T+60 | awaiting T+60 | $114.84 (+1.06%) |
Sep 16, 2026 6w ago | Insider Cluster | $110.67 | awaiting T+60 | awaiting T+60 | $114.84 (−3.77%) |
Sep 11, 2026 6w ago | Insider Cluster | $100.82 | awaiting T+60 | awaiting T+60 | $114.84 (+13.91%) |
Sep 11, 2026 6w ago | Insider Cluster | $100.82 | awaiting T+60 | awaiting T+60 | $114.84 (+13.91%) |
US Market Status
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