GREGORY B MAFFEI
CIK 1099636 · President/CEO · last filed 2026-06-02
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$455.73M
Companies
39
Total Filings
459
Lifetime Open-Market Net
-$420.48M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SIRI | Director | 5,385,039 | $28.03 | $150.94M | -$474.3K | 64 | 2026-06-02 |
| ZG | Director | 637,783 | $32.49 | $20.72M | -$2.78M | 21 | 2026-03-03 |
| TRIP | Director | 155,078 | $12.96 | $2.01M | $1.12M | 15 | 2025-06-20 |
| QVC Group, Inc. (QRTEP) Delisted | Chairman of the Board | 8,125,782 | $39.91 | $324.30M | -$3.6K | 13 | 2025-03-07 |
| LBRDP | President/CEO | 1,565,299 | $21.95 | $34.35M | -$28.45M | 11 | 2024-12-19 |
| LBRDK | President/CEO | 1,398,523 | $29.62 | $41.42M | -$110.52M | 30 | 2024-12-19 |
| FWONK | President, CEO | 1,372,395 | $90.76 | $124.56M | -$106.77M | 41 | 2024-12-18 |
| BATRK | President, CEO | 1,158,836 | $50.38 | $58.38M | $0 | 1 | 2024-08-30 |
| Liberty Media Corp (LSXMK) Delisted | President, CEO | 4,733,709 | $22.29 | $105.51M | -$101.40M | 52 | 2024-08-26 |
| LYV | Director | 111,602 | $171.24 | $19.11M | $0 | 15 | 2024-06-14 |
| CHTR | Director | 7,569 | $126.23 | $955.4K | -$2.1K | 10 | 2024-04-25 |
| Liberty TripAdvisor Holdings, Inc. (LTRPB) Delisted | President/CEO | 3,593,255 | $10.50 | $37.73M | $315.9K | 14 | 2023-06-02 |
| GLIBA | President and CEO | 0 | $21.01 | $0 | $0 | 1 | 2020-12-22 |
| GRIZZLY MERGER SUB 1, LLC (GLIBP) Delisted | President and CEO | 935,188 | — | — | -$6.30M | 9 | 2020-12-14 |
| Liberty Media Corp (LSXMR) Delisted | President, CEO | 3,124,096 | — | — | $0 | 1 | 2020-06-04 |
| QVC Group, Inc. (QRTEB) Delisted | Chairman of the Board | 684,171 | $2.00 | $1.37M | $1.89M | 9 | 2020-04-17 |
| P | Director | 0 | $74.61 | $0 | $0 | 3 | 2019-02-01 |
| Liberty Expedia Holdings, Inc. (LEXEB) Delisted | 10%+ Owner | 425,876 | — | — | $0 | 1 | 2018-12-21 |
| QVC Group, Inc. (QVCB) Delisted | President, CEO | 416,464 | — | — | -$8.24M | 17 | 2018-03-07 |
| Starz Acquisition LLC (STRZB) Delisted | Director | 1,368,204 | — | — | $0 | 1 | 2016-12-02 |
| Liberty Media Corp (LSXM.B) Delisted | President, CEO | 696,333 | — | — | $0 | 4 | 2016-07-11 |
| Liberty Media Corp (LSXM.K) Delisted | President, CEO | 913,739 | — | — | $0 | 1 | 2016-04-22 |
| Liberty Media Corp (LMCK) Delisted | President, CEO | 3,676,901 | — | — | -$2.44M | 7 | 2016-03-31 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRD.K) Delisted | President/CEO | 388,256 | — | — | $0 | 3 | 2016-01-04 |
| Starz Acquisition LLC (STRZA) Delisted | Director | 1,822,456 | — | — | -$6.68M | 6 | 2015-12-17 |
| Z | Director | 0 | $32.11 | $0 | -$1.20M | 12 | 2015-03-04 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRK.R) Delisted | President/CEO | 437,529 | — | — | $0 | 3 | 2015-01-02 |
| Liberty TripAdvisor Holdings, Inc. (LTRP.B) Delisted | President/CEO | 3,002,051 | — | — | $50.36M | 1 | 2014-12-23 |
| QVC Group, Inc. (LVNTA) Delisted | President, CEO | 3,874,887 | — | — | -$29.50M | 9 | 2014-03-26 |
| Liberty Media Corp (LMCB) Delisted | President, CEO | 1,750,277 | — | — | $0 | 2 | 2014-03-26 |
| BARNES & NOBLE INC (BKSw) Delisted | Director | 25,518 | — | — | $0 | 3 | 2013-09-12 |
| Starz Acquisition LLC (STRZ.B) Delisted | Chairman of the Board | 1,732,954 | — | — | $0 | 1 | 2013-03-06 |
| Starz Acquisition LLC (LMCA) Delisted | President, CEO | 1,736,402 | — | — | -$39.20M | 6 | 2013-01-02 |
| EA | Director | 16,197 | $202.15 | $3.27M | $0 | 3 | 2012-07-27 |
| ELECTRONIC ARTS INC. (ERTS) Delisted | Director | 13,914 | — | — | $0 | 10 | 2011-11-02 |
| Starz Acquisition LLC (LCPAD) Delisted | President, CEO | 44,604 | — | — | $0 | 1 | 2011-09-27 |
| QVC Group, Inc. (LINTB) Delisted | President, CEO | 0 | — | — | -$4.60M | 12 | 2011-09-27 |
| QVC Group, Inc. (LSTZA) Delisted | President, CEO | 524,665 | — | — | $0 | 5 | 2011-07-07 |
| DIRECTV (DTV) Delisted | Director | 28,560 | — | — | -$25.59M | 13 | 2010-03-23 |
Recent Filings · Page 26 of 46
459 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-11-13 | LBRDK | Sell (S) | −90,762 | -$10.66M | EDGAR |
| 2019-11-08 | LBRDK | Mixed | +90,762 | -$62.84M | EDGAR |
| 2019-11-08 | LBRDK | Mixed | +90,762 | -$62.84M | EDGAR |
| 2019-10-01 | Liberty TripAdvisor Holdings, Inc. (LTRPB) Delisted | Buy (P) | +15,008 | $155.9K | EDGAR |
| 2019-09-17 | Liberty TripAdvisor Holdings, Inc. (LTRPB) Delisted | Buy (P) | +15,408 | $160.0K | EDGAR |
| 2019-09-03 | SIRI | Grant (A) | +87 | $0 | EDGAR |
| 2019-07-30 | — | U | −450,142 | $0 | |
| 2019-06-13 | TRIP | Grant (A) | +5,457 | $0 | EDGAR |
| 2019-06-10 | LYV | Grant (A) | +4,665 | $0 | EDGAR |
| 2019-06-06 | SIRI | Grant (A) | +33,207 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.