Day David (CIK 1523288) reported 20 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-19). Recent activity: Sell MGNI (14,170 shares), Sell MGNI (30,617 shares), Buy MGNI (72,675 shares), Sell MGNI (35,169 shares), Buy MGNI (131,661 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-19 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 14,170 | $181,659 |
| 2026-02-18 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 30,617 | $358,219 |
| 2026-01-12 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 72,675 | $0 |
| 2026-01-12 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 35,169 | $568,683 |
| 2026-01-05 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 131,661 | $0 |
| 2025-11-18 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 13,197 | $186,738 |
| 2025-08-20 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 13,366 | $318,779 |
| 2025-08-19 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 26,374 | $0 |
| 2025-07-02 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 21,682 | $477,004 |
| 2025-06-26 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 35,000 | $184,800 |
| 2025-06-26 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 35,000 | $698,250 |
| 2025-06-26 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 36,000 | $190,080 |
| 2025-06-26 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 36,000 | $754,200 |
| 2025-06-20 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 38,146 | $187,678 |
| 2025-06-20 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 38,146 | $722,867 |
| 2025-05-16 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 13,865 | $220,176 |
| 2025-02-19 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 31,113 | $622,260 |
| 2025-02-07 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 13,245 | $243,046 |
| 2025-02-07 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Buy | 39,000 | $191,880 |
| 2025-02-07 | MAGNITE, INC. (MGNI) | CHIEF FINANCIAL OFFICER | Sell | 39,000 | $780,000 |
Source: SEC Form 4 filings · as of 2026-05-19