WALSH COLIN (CIK 1866174) reported 27 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-13). Recent activity: Buy ATTO (85,000 shares), Sell ATTO (700 shares), Sell ATTO (447 shares), Sell ATTO (1,332 shares), Sell ATTO (200 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Buy | 85,000 | $1.8M |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 700 | $15,449 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 447 | $9,776 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 1,332 | $29,344 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 200 | $4,410 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 1,556 | $34,325 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 3,402 | $74,912 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 988 | $21,766 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 480 | $10,344 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 100 | $2,211 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 753 | $16,543 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 672 | $14,797 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 6,970 | $153,549 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 400 | $8,808 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 1,180 | $25,771 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 1,040 | $22,932 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 300 | $6,252 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 443 | $9,649 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 200 | $4,410 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Buy | 2.0M | $0 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 1,163 | $25,807 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 100 | $2,199 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 6,763 | $146,148 |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 76,418 | $1.6M |
| 2026-08-13 | Attovia Therapeutics, Inc. (ATTO) | Director | Sell | 200 | $4,420 |
Source: SEC Form 4 filings · as of 2026-08-13