Buonasera David — SEC Form 4 filings
SEC reporting owner CIK 1966857. 29 Form 4 filings on record with FilingPulse; latest filed 2026-09-16.
Transaction summary — filings shown
Covers all 29 filings on record, filed 2024-02-16 to 2026-09-16. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 24 legs across 18 filings — 113,212 shares, $2,100,780 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 18.
- Largest priced transaction: sale of 9,289 shares @ $22.00 ($204,358) in MAGNITE, INC., filed 2025-07-02.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| MAGNITE, INC. (MGNI) | CHIEF TECHNOLOGY OFFICER | 29 | — | 24 legs · 113,212 sh · $2,100,780 | 18 |
Form 4 filings — Buonasera David
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-16 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 1,165 @ $24 | EDGAR |
| 2026-09-03 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 5,371 @ $23.42 · Sale (S): 1,043 @ $25 | EDGAR |
| 2026-08-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 8,102 @ $24.73 | EDGAR |
| 2026-08-07 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 4,176 @ $22.81 · Sale (S): 2,602 @ $24 · Sale (S): 871 @ $25 | EDGAR |
| 2026-07-09 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 1,224 @ $21 | EDGAR |
| 2026-07-02 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 9,376 @ $20 | EDGAR |
| 2026-06-17 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 1,057 @ $17 · Sale (S): 11,233 @ $18 · Sale (S): 1,409 @ $19 | EDGAR |
| 2026-06-03 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 1,409 @ $15 | EDGAR |
| 2026-05-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 8,335 @ $12.82 | EDGAR |
| 2026-02-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 17,137 @ $11.70 | EDGAR |
| 2026-01-12 | 4 | MAGNITE, INC. (MGNI) | Option exercise (M): 22,935 @ $0 · Tax withholding (F): 12,330 @ $16.17 · Option exercise (M): 22,935 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | MAGNITE, INC. (MGNI) | Grant/award (A): 76,803 @ $0 · Grant/award (A): 25,801 (derivative) @ $0 | EDGAR |
| 2025-11-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 7,129 @ $14.15 | EDGAR |
| 2025-09-04 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 2,950 @ $25.37 | EDGAR |
| 2025-08-20 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 7,834 @ $23.85 | EDGAR |
| 2025-07-02 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 9,289 @ $22 | EDGAR |
| 2025-05-28 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 3,653 @ $15.03 · Sale (S): 8,742 @ $16 | EDGAR |
| 2025-05-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 8,038 @ $15.88 | EDGAR |
| 2025-02-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 17,384 @ $20 | EDGAR |
| 2025-01-13 | 4 | MAGNITE, INC. (MGNI) | Grant/award (A): 72,384 @ $0 · Grant/award (A): 24,366 (derivative) @ $0 | EDGAR |
| 2024-12-13 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 1,969 @ $16.31 | EDGAR |
| 2024-11-27 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 431 @ $16.78 | EDGAR |
| 2024-11-26 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 9,219 @ $17 | EDGAR |
| 2024-11-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 5,056 @ $15.85 · Sale (S): 277 @ $15.77 | EDGAR |
| 2024-11-15 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 12,412 @ $16.41 | EDGAR |
| 2024-09-04 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 5,287 @ $13.79 | EDGAR |
| 2024-08-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 3,760 @ $12.51 · Sale (S): 10,000 @ $12.65 | EDGAR |
| 2024-05-17 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 7,632 @ $9.80 · Sale (S): 5,500 @ $12.50 | EDGAR |
| 2024-02-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 6,765 @ $9.74 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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