MAFFEI GREGORY B
Director · Officer · Ten-percent owner · TRIP, LBRDA, FWONK
As of 2026-09-16, MAFFEI GREGORY B has 48 Form 4 transactions on record across 3 companies — 10 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-02-27 | — | Sale | 8,050 @ $45.15 | $363K | −1.2% of holding | 637,783 | Form 4 |
| 2024-12-19 | LBRDA | Sale | 29,093 @ $77.33 | $2.2M | −2.0% of holding | 1,398,523 | Form 4 |
| 2024-12-19 | LBRDA | Sale | 7,640 @ $78.01 | $596K | −0.5% of holding | 1,427,616 | Form 4 |
| 2024-12-18 | LBRDA | Sale | 82,315 @ $80.20 | $6.6M | −5.4% of holding | 1,435,256 | Form 4 |
| 2024-12-18 | LBRDA | Sale | 27,199 @ $78.54 | $2.1M | −1.8% of holding | 1,517,571 | Form 4 |
| 2024-12-18 | LBRDA | Sale | 14,448 @ $79.29 | $1.1M | −0.9% of holding | 1,544,770 | Form 4 |
| 2024-12-18 | LBRDA | Sale | 1,038 @ $80.91 | $84K | −0.1% of holding | 1,559,218 | Form 4 |
| 2024-12-17 | LBRDA | Sale | 118,825 @ $80.60 | $9.6M | −7.1% of holding | 1,560,256 | Form 4 |
| 2024-12-17 | LBRDA | Sale | 1,165 @ $81.30 | $95K | −0.1% of holding | 1,679,081 | Form 4 |
| 2024-12-16 | LBRDA | Sale | 71,500 @ $82.00 | $5.9M | −2.5% of holding | 2,827,013 | Form 4 |
| 2024-12-16 | FWONK | Sale | 34,603 @ $71.52 | $2.5M | −2.7% of holding | 1,240,785 | Form 4 |
| 2024-12-16 | FWONK | Sale | 860 @ $72.05 | $62K | −0.1% of holding | 1,275,388 | Form 4 |
36 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-08-26 | — | Award / grant | 60 | 5,385,099 | Form 4 |
| 2026-05-29 | — | Award / grant | 6,775 | 5,385,039 | Form 4 |
| 2026-05-27 | — | Award / grant | 83 | 5,378,264 | Form 4 |
| 2026-03-05 | — | Gift | 1,108 | 0 | Form 4 |
| 2026-03-01 | — | Award / grant | 18,996 | 18,996 | Form 4 |
| 2026-02-27 | — | Option exercise | 16,835 | 645,833 | Form 4 |
| 2026-02-27 | — | Option exercise | 16,835 | 0 | Form 4 |
| 2026-02-27 | — | Award / grant | 66,862 | 5,378,181 | Form 4 |
| 2025-11-21 | — | Award / grant | 98 | 4,790,620 | Form 4 |
| 2025-08-27 | — | Award / grant | 92 | 4,790,522 | Form 4 |
| 2025-06-18 | TRIP | Award / grant | 19,171 | 153,140 | Form 4 |
| 2025-05-29 | — | Award / grant | 7,816 | 4,790,430 | Form 4 |
| 2025-05-28 | — | Award / grant | 86 | 4,782,614 | Form 4 |
| 2025-04-29 | — | Disposition | 4,671,218 | 0 | Form 4 |
| 2025-04-29 | — | Disposition | 26,557 | 0 | Form 4 |
| 2025-04-29 | — | Disposition | 572,665 | 0 | Form 4 |
| 2025-04-29 | — | Disposition | 26,557 | 0 | Form 4 |
| 2025-04-29 | — | Disposition | 572,665 | 0 | Form 4 |
| 2025-03-07 | — | Withheld for tax | 108,732 | 8,125,782 | Form 4 |
| 2025-03-04 | — | Award / grant | 295,608 | 8,234,514 | Form 4 |
| 2025-03-01 | — | Award / grant | 11,586 | 11,586 | Form 4 |
| 2025-02-25 | — | Award / grant | 78 | 4,782,528 | Form 4 |
| 2024-12-16 | LBRDA | Withheld for tax | 1,146,767 | 1,680,246 | Form 4 |
| 2024-12-16 | LBRDA | Option exercise | 1,500,000 | 2,898,513 | Form 4 |
| 2024-12-16 | FWONK | Withheld for tax | 133,051 | 1,107,734 | Form 4 |
| 2024-12-16 | FWONK | Withheld for tax | 86,498 | 1,084,856 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 162,570 | 1,270,304 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 138,899 | 1,171,354 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 5,944 | 1,276,248 | Form 4 |
| 2024-12-16 | LBRDA | Option exercise | 1,500,000 | 0 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 138,899 | 0 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 162,570 | 0 | Form 4 |
| 2024-12-16 | FWONK | Option exercise | 5,944 | 0 | Form 4 |
| 2024-12-07 | — | Withheld for tax | 417,094 | 4,671,218 | Form 4 |
| 2024-12-07 | — | Option exercise | 1,000,000 | 0 | Form 4 |
| 2024-12-07 | — | Option exercise | 1,000,000 | 5,088,312 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.