Robert F Spillane insider trades: Magnite (MGNI) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Robert reports to the SEC
Open-market buys and sales
7 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 14, 2026 | MGNI | ↓ Sell | 10,363 | $23.76 | $246K | Direct | Sep 16, 2026 (2d) |
| May 19, 2026 | MGNI | ↓ Sell | 10,000 | $13.33 | $133K | Direct | May 21, 2026 (2d) |
| Nov 21, 2025 | MGNI | ↓ Sell | 12,500 | $14.22 | $178K | Direct | Nov 21, 2025 (0d) |
| Jun 10, 2025 | MGNI | ↓ Sell | 15,000 | $17.57 | $264K | Direct | Jun 12, 2025 (2d) |
| Nov 20, 2024 | MGNI | ↓ Sell | 12,500 | $16.12 | $202K | Direct | Nov 22, 2024 (2d) |
| Jun 11, 2024 | MGNI | ↓ Sell | 25,000 | $13.04 | $326K | Direct | Jun 13, 2024 (2d) |
| Aug 22, 2023 | MGNI | ↓ Sell | 25,000 | $8.05 | $201K | Direct | Aug 23, 2023 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MGNI insiders
Open-market trades in the last 12 months
About Robert F Spillane's insider trades
Robert F Spillane is a director at Magnite (MGNI). Since Aug 22, 2023, Robert has reported no open-market purchases and 7 sales worth $1.5M on SEC Form 4. In the last 12 months: 3 sales ($557K).
Their filings also include grants and awards (13 filings), option exercises (1 filing), other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MGNI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.