Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research signal for this company.
Insider flow: Buying only — a count of disclosed transactions, not a rating or a recommendation.
Every open-market transaction disclosed for ATTO in the synced window. Values are the insider's own, as filed.
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-06 | Redmile Group, LLC | Open-market buy | 200,000 | 17.00 | $3,400,000 | |
| 2026-08-06 | Redmile Group, LLC | Open-market buy | 400,000 | 17.00 | $6,800,000 |
Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.