GENACHOWSKI JULIUS (CIK 1184231) reported 22 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-07-30). Recent activity: Buy SONO (19,855 shares), Sell SONO (19,855 shares), Buy SONO (19,855 shares), Sell SONO (19,855 shares), Buy MA (509 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-30 | Sonos Inc (SONO) | Director | Buy | 19,855 | $269,234 |
| 2026-07-30 | Sonos Inc (SONO) | Director | Sell | 19,855 | $327,608 |
| 2026-07-30 | Sonos Inc (SONO) | Director | Buy | 19,855 | $269,234 |
| 2026-07-30 | Sonos Inc (SONO) | Director | Sell | 19,855 | $337,535 |
| 2026-06-18 | Mastercard Inc (MA) | Director | Buy | 509 | $0 |
| 2026-03-10 | Sonos Inc (SONO) | Director | Sell | 15,427 | $0 |
| 2026-03-10 | Sonos Inc (SONO) | Director | Buy | 15,427 | $0 |
| 2026-03-06 | Sonos Inc (SONO) | Director | Buy | 12,725 | $0 |
| 2026-03-06 | Sonos Inc (SONO) | Director | Buy | 4,772 | $0 |
| 2025-11-12 | Sonos Inc (SONO) | Director | Sell | 1,550 | $0 |
| 2025-11-12 | Sonos Inc (SONO) | Director | Buy | 1,550 | $0 |
| 2025-11-12 | Sonos Inc (SONO) | Director | Sell | 77,057 | $0 |
| 2025-11-12 | Sonos Inc (SONO) | Director | Buy | 77,057 | $0 |
| 2025-11-03 | Mastercard Inc (MA) | Director | Sell | 45 | $0 |
| 2025-11-03 | Mastercard Inc (MA) | Director | Buy | 45 | $0 |
| 2025-09-04 | Sonos Inc (SONO) | Director | Buy | 5,916 | $0 |
| 2025-08-11 | Sonos Inc (SONO) | Director | Buy | 22,850 | $250,207 |
| 2025-07-08 | Mastercard Inc (MA) | Director | Sell | 312 | $178,049 |
| 2025-06-26 | Mastercard Inc (MA) | Director | Sell | 310 | $173,910 |
| 2025-06-26 | Mastercard Inc (MA) | Director | Buy | 458 | $0 |
| 2025-04-02 | Mastercard Inc (MA) | Director | Sell | 180 | $0 |
| 2025-03-13 | Sonos Inc (SONO) | Director | Buy | 15,427 | $0 |
Source: SEC Form 4 filings · as of 2026-07-30