Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| ATRA | Cherry Brian N | Director | 09/04/2026 | Kauf | 9.60 | 104,166 | 999,994 | Form 4 |
| ATRA | Nguyen AnhCo | President and CEO | 08/17/2026 | Verkauf | 8.08 | 5,062 | 40,883 | Form 4 |
| ATRA | Redmile Group, LLC | Director | 07/22/2026 | Steuer-Abgabe | — | 60 | — | Form 4 |
| ATRA | Redmile Group, LLC | Director | 07/22/2026 | Optionsausübung | — | 195,211 | — | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).