Day David — SEC Form 4 filings
SEC reporting owner CIK 1523288. 26 Form 4 filings on record with FilingPulse; latest filed 2026-08-18.
Transaction summary — filings shown
Covers all 26 filings on record, filed 2024-02-05 to 2026-08-18. 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): 14 legs across 11 filings — 315,406 shares, $5,719,268 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 28.
- Largest priced transaction: sale of 39,000 shares @ $20.00 ($780,000) in MAGNITE, INC., filed 2025-02-07.
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 FINANCIAL OFFICER | 26 | — | 14 legs · 315,406 sh · $5,719,268 | 28 |
Form 4 filings — Day David
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 14,170 @ $24.73 | EDGAR |
| 2026-08-14 | 4 | MAGNITE, INC. (MGNI) | Gift (G): 26,258 @ $0 | EDGAR |
| 2026-05-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 14,170 @ $12.82 | EDGAR |
| 2026-02-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 30,617 @ $11.70 | EDGAR |
| 2026-01-12 | 4 | MAGNITE, INC. (MGNI) | Option exercise (M): 72,675 @ $0 · Tax withholding (F): 35,169 @ $16.17 · Option exercise (M): 72,675 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | MAGNITE, INC. (MGNI) | Grant/award (A): 131,661 @ $0 · Grant/award (A): 44,231 (derivative) @ $0 | EDGAR |
| 2025-11-18 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 13,197 @ $14.15 | EDGAR |
| 2025-08-20 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 13,366 @ $23.85 | EDGAR |
| 2025-08-19 | 4 | MAGNITE, INC. (MGNI) | Gift (G): 26,374 @ $0 | EDGAR |
| 2025-07-02 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 21,682 @ $22 | EDGAR |
| 2025-06-26 | 4 | MAGNITE, INC. (MGNI) | Option exercise (M): 35,000 @ $5.28 · Sale (S): 35,000 @ $19.95 · Option exercise (M): 36,000 @ $5.28 · Sale (S): 36,000 @ $20.95 · Option exercise (M): 35,000 (derivative) @ $0 · Option exercise (M): 36,000 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | MAGNITE, INC. (MGNI) | Option exercise (M): 38,146 @ $4.92 · Sale (S): 38,146 @ $18.95 · Option exercise (M): 38,146 (derivative) @ $0 | EDGAR |
| 2025-05-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 13,865 @ $15.88 | EDGAR |
| 2025-02-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 31,113 @ $20 | EDGAR |
| 2025-02-07 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 13,245 @ $18.35 · Option exercise (M): 39,000 @ $4.92 · Sale (S): 39,000 @ $20 · Option exercise (M): 39,000 (derivative) @ $0 | EDGAR |
| 2025-01-13 | 4 | MAGNITE, INC. (MGNI) | Grant/award (A): 127,737 @ $0 · Grant/award (A): 43,000 (derivative) @ $0 | EDGAR |
| 2025-01-07 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 13,345 @ $17 | EDGAR |
| 2024-12-18 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 11,644 @ $16.44 · Sale (S): 13,500 @ $16.32 | EDGAR |
| 2024-11-19 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 9,128 @ $15.85 | EDGAR |
| 2024-08-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 9,124 @ $12.51 | EDGAR |
| 2024-07-17 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 19,077 @ $15 | EDGAR |
| 2024-06-14 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 21,299 @ $14.01 | EDGAR |
| 2024-06-05 | 4 | MAGNITE, INC. (MGNI) | Sale (S): 20,732 @ $13 | EDGAR |
| 2024-05-17 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 12,380 @ $9.80 · Sale (S): 19,370 @ $12 | EDGAR |
| 2024-02-16 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 30,316 @ $9.74 | EDGAR |
| 2024-02-05 | 4 | MAGNITE, INC. (MGNI) | Tax withholding (F): 14,417 @ $9.06 | 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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