Sean Patrick Buckley 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 Sean reports to the SEC
Open-market buys and sales
21 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 5, 2026 | MGNI | ↓ Sell | 10,991 | $27.00 | $297K | Direct | Nov 6, 2026 (1d) |
| Aug 6, 2026 | MGNI | ↓ Sell | 67,179 | $24.49 | $1.6M | Direct | Aug 7, 2026 (1d) |
| Jul 7, 2026 | MGNI | ↓ Sell | 19,233 | $21.03 | $404K | Direct | Jul 9, 2026 (2d) |
| Jun 17, 2026 | MGNI | ↓ Sell | 19,233 | $19.00 | $365K | Direct | Jun 18, 2026 (1d) |
| Nov 24, 2025 | MGNI | ↓ Sell | 2,213 | $14.50 | $32K | Direct | Nov 26, 2025 (2d) |
| Nov 18, 2025 | MGNI | ↓ Sell | 4,426 | $13.36 | $59K | Direct | Nov 18, 2025 (0d) |
| Sep 9, 2025 | MGNI | ↓ Sell | 40,000 | $25.09 | $1.0M | Direct | Sep 10, 2025 (1d) |
| Aug 19, 2025 | MGNI | ↓ Sell | 20,201 | $23.65 | $478K | Direct | Aug 20, 2025 (1d) |
| May 16, 2025 | MGNI | ↓ Sell | 9,692 | $15.73 | $152K | Direct | May 16, 2025 (0d) |
| Feb 19, 2025 | MGNI | ↓ Sell | 10,527 | $19.13 | $201K | Direct | Feb 21, 2025 (2d) |
| Feb 7, 2025 | MGNI | ↓ Sell | 18,693 | $20.00 | $374K | Direct | Feb 7, 2025 (0d) |
| Nov 18, 2024 | MGNI | ↓ Sell | 10,001 | $15.60 | $156K | Direct | Nov 19, 2024 (1d) |
| Nov 11, 2024 | MGNI | ↓ Sell | 5,242 | $15.00 | $79K | Direct | Nov 13, 2024 (2d) |
| Aug 20, 2024 | MGNI | ↓ Sell | 5,246 | $13.02 | $68K | Direct | Aug 21, 2024 (1d) |
| Jul 16, 2024 | MGNI | ↓ Sell | 39,211 | $15.00 | $588K | Direct | Jul 17, 2024 (1d) |
| Jun 5, 2024 | MGNI | ↓ Sell | 21,653 | $13.50 | $292K | Direct | Jun 7, 2024 (2d) |
| May 24, 2024 | MGNI | ↓ Sell | 2,682 | $12.50 | $34K | Direct | May 29, 2024 (5d) |
| May 16, 2024 | MGNI | ↓ Sell | 16,925 | $12.50 | $212K | Direct | May 17, 2024 (1d) |
| Aug 16, 2023 | MGNI | ↓ Sell | 5,273 | $8.31 | $44K | Direct | Aug 18, 2023 (2d) |
| Jun 2, 2023 | MGNI | ↓ Sell | 12,219 | $12.99 | $159K | Direct | Jun 6, 2023 (4d) |
| May 16, 2023 | MGNI | ↓ Sell | 5,640 | $10.88 | $61K | Direct | May 18, 2023 (2d) |
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 Sean Patrick Buckley's insider trades
Sean Patrick Buckley is See Remarks at Magnite (MGNI). Since May 16, 2023, Sean has reported no open-market purchases and 21 sales worth $6.7M on SEC Form 4. In the last 12 months: 6 sales ($2.8M).
Their filings also include shares withheld for taxes (16 filings), grants and awards (6 filings), option exercises (2 filings). 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.