Form 4: Magnite Executive Sells Shares
Insider Transaction (Form 4)
Sean Patrick Buckley, See Remarks of Magnite, Inc., sold 67,179 shares of common stock on August 6, 2026.
Summary
- Option exercise/conversion: acquired 28,703 Common Stock at $13.90 ($398,972) on August 6, 2026; holds 382,984 after (Direct).
- Open-market sale: disposed of 47,942 Common Stock at $25.09 ($1,202,865) on August 6, 2026; holds 335,042 after (Direct).
- Open-market sale: disposed of 19,237 Common Stock at $23.00 ($442,451) on August 6, 2026; holds 315,805 after (Direct).
- Option exercise/conversion: disposed of 28,703 Stock Option (right to buy) on August 6, 2026; holds 57,405 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $1,645,316 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Sean Patrick Buckley — Officer (See Remarks)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-06 | Option exercise/conversion | Common Stock | 28,703 | $14 | $399.0K | 382,984 |
| 2026-08-06 | Open-market sale | Common Stock | 47,942 | $25 | $1.2M | 335,042 |
| 2026-08-06 | Open-market sale | Common Stock | 19,237 | $23 | $442.5K | 315,805 |
| 2026-08-06 | Option exercise/conversion | Stock Option (right to buy) | 28,703 | — | — | 57,405 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-06 | Option exercise/conversion (28,703 shares) |
| 2026-08-06 | Open-market sale (47,942 shares) |
| 2026-08-06 | Open-market sale (19,237 shares) |
| 2026-08-06 | Option exercise/conversion (28,703 shares) |
Keywords
insider transaction, Form 4, MGNI, MAGNITE, INC., bearish, Sean Patrick Buckley
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