Buckley Sean Patrick (CIK 1865116) reported 22 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-18). Recent activity: Sell MGNI (11,715 shares), Sell MGNI (8,271 shares), Sell MGNI (2,759 shares), Buy MGNI (28,703 shares), Sell MGNI (47,942 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 11,715 | $289,712 |
| 2026-08-18 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 8,271 | $201,068 |
| 2026-08-18 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 2,759 | $68,975 |
| 2026-08-07 | MAGNITE, INC. (MGNI) | See Remarks | Buy | 28,703 | $398,972 |
| 2026-08-07 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 47,942 | $1.2M |
| 2026-08-07 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 19,237 | $442,451 |
| 2026-07-09 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 19,233 | $404,470 |
| 2026-06-18 | MAGNITE, INC. (MGNI) | See Remarks | Sell | 19,233 | $365,427 |
| 2026-05-19 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 12,019 | $154,084 |
| 2026-02-18 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 26,942 | $315,221 |
| 2026-01-12 | MAGNITE, INC. (MGNI) | President, Revenue | Buy | 64,125 | $0 |
| 2026-01-12 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 30,369 | $491,067 |
| 2026-01-05 | MAGNITE, INC. (MGNI) | President, Revenue | Buy | 127,273 | $0 |
| 2025-11-26 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 2,213 | $32,088 |
| 2025-11-18 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 11,642 | $164,734 |
| 2025-11-18 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 4,426 | $59,131 |
| 2025-09-10 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 20,000 | $511,200 |
| 2025-09-10 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 20,000 | $492,200 |
| 2025-08-20 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 10,886 | $259,631 |
| 2025-08-20 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 9,315 | $218,157 |
| 2025-05-16 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 15,049 | $238,978 |
| 2025-05-16 | MAGNITE, INC. (MGNI) | President, Revenue | Sell | 9,692 | $152,455 |
Source: SEC Form 4 filings · as of 2026-08-18