Colin Walsh, Director at Attovia Therapeutics, Inc. (ATTO), bought 105,807 shares at $21.22 ($2.2M) on 2026-08-05, disclosed to the SEC on 2026-08-28.
Open-market purchase of $2.2M ATTO by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade C.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $21.22 | 2,872 | $61K | 2.7% |
| 2 | $21.22 | 5,744 | $122K | 5.4% |
| 3 | $21.22 | 11,488 | $244K | 10.8% |
| 4 | $21.22 | 28,717 | $609K | 27.1% |
| 5 | $21.27 | 11,398 | $242K | 10.8% |
| 6 | $21.27 | 45,588 |
| $970K |
| 43.1% |
| Total | $21.25 avg | 105,807 | $2.2M | 100% |
| Filing → |