Updated Jul 16, 2026
Buckley Sean Patrick has filed 3 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $2.49M.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-09 | MGNI | MAGNITE, INC. | S — Open-market sale | 19.2K | $21.03 | $404K |
| 2026-06-18 | MGNI | MAGNITE, INC. | S — Open-market sale | 19.2K | $19.00 | $365K |
| 2026-05-19 | MGNI | MAGNITE, INC. | F — Tax withholding / forfeiture | 12.0K | $12.82 | $154K |
| 2026-02-18 | MGNI | MAGNITE, INC. | F — Tax withholding / forfeiture | 26.9K | $11.70 | $315K |
| 2026-01-12 | MGNI | MAGNITE, INC. | F — Tax withholding / forfeiture | 30.4K | $16.17 | $491K |
| 2026-01-12 | MGNI | MAGNITE, INC. | M — Option exercise | 64.1K | $0.00 | |
| 2025-09-08 | MGNI | MAGNITE, INC. | S — Open-market sale | 20.0K | $24.61 | $492K |
| 2025-09-08 | MGNI | MAGNITE, INC. | S — Open-market sale | 20.0K | $25.56 | $511K |
| 2025-08-18 | MGNI | MAGNITE, INC. | S — Open-market sale | 9.3K | $23.42 | $218K |
| 2025-08-18 | MGNI | MAGNITE, INC. | S — Open-market sale | 10.9K | $23.85 | $260K |
| 2024-11-19 | MGNI | MAGNITE, INC. | S — Open-market sale [10b5-1] | 10.0K | $15.60 | $156K |
| 2024-11-19 | MGNI | MAGNITE, INC. | F — Tax withholding / forfeiture [10b5-1] | 10.1K | $15.85 | $161K |
| 2024-11-13 | MGNI | MAGNITE, INC. | S — Open-market sale [10b5-1] | 2.6K | $15.50 | $41K |
| 2024-11-13 | MGNI | MAGNITE, INC. | S — Open-market sale [10b5-1] | 2.6K | $14.50 | $38K |
Buckley Sean Patrick is a corporate insider — currently tracked as Insider of MAGNITE, INC. (MGNI). InsiderAlpha tracks every SEC Form 4 filing in real time.
3 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 9 open-market sales ($2.49M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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