MAFFEI GREGORY B

Director at Atlanta Braves Holdings, Inc. · on record since Jul 20, 2023
President, CEO at Atlanta Braves Holdings, Inc. · on record since Jul 20, 2023
Director at LIBERTY MEDIA LLC · on record since Mar 6, 2006
President, CEO at LIBERTY MEDIA LLC · on record since Mar 6, 2006
Director at Old QVC Group, Inc. · on record since May 16, 2006
Director at ELECTRONIC ARTS INC. · on record since Jul 31, 2006
Director at Liberty Sirius XM Holdings Inc. · on record since Sep 9, 2024
President, CEO at Liberty Sirius XM Holdings Inc. · on record since Sep 9, 2024
Director at DIRECTV GROUP INC · on record since Mar 4, 2008
Director at SIRIUS XM HOLDINGS INC. · on record since Mar 18, 2009
Director at Live Nation Entertainment, Inc. · on record since Feb 8, 2011
Director at BARNES & NOBLE INC · on record since Sep 27, 2011
Director at ZILLOW INC · on record since Jul 27, 2011
Director at STARBUCKS CORP · on record since Nov 24, 2003
Director at Liberty Media Corp · on record since Dec 27, 2012
President, CEO at Liberty Media Corp · on record since Dec 27, 2012
Director at TripAdvisor, Inc. · on record since Feb 20, 2013
Director at CHARTER COMMUNICATIONS, INC. /MO/ · on record since May 9, 2013
Director at Liberty TripAdvisor Holdings, Inc. · on record since Aug 20, 2014
President/CEO at · on record since Aug 20, 2014
Director at · on record since Oct 29, 2014
President/CEO at · on record since Oct 29, 2014
10% owner at · on record since Dec 23, 2014
Director at · on record since Mar 2, 2016
Director at · on record since Jul 20, 2016
President/CEO at · on record since Jul 20, 2016
Director at · on record since Sep 26, 2017
Chairman of the Board at · on record since Mar 13, 2018
10% owner at · on record since Mar 13, 2018
Director at · on record since Mar 13, 2018
President and CEO at · on record since Mar 13, 2018
10% owner at · on record since Dec 21, 2018
10% owner at · on record since Dec 4, 2019
10% owner at · on record since Dec 22, 2020
Director at · on record since Jan 28, 2021
President/CEO at · on record since Jan 28, 2021
President at · on record since Jun 24, 2005

Insider trading activity of MAFFEI GREGORY B

Transactions on record: 1,450; since Aug 1, 2003

Open-market buys: 51; $68.5M

Open-market sells: 187; $295M

Companies traded: 23; last filing Aug 28, 2026

Figures computed from official regulatory filings — .

Companies where MAFFEI GREGORY B has traded

103 tx · $4.4M · Aug 28, 2026
43 tx · $3.4M · Mar 3, 2026
16 tx · $1.1M · Jun 20, 2025
35 tx · $219.6M · Apr 30, 2025
425 tx · $1.1B · Mar 7, 2025
95 tx · $444.2M · Dec 19, 2024
362 tx · $765.3M · Dec 18, 2024
19 tx · $9.2M · Aug 30, 2024
16 tx · Jun 14, 2024
19 tx · $2.1K · Apr 25, 2024
2 tx · $7.4M · Dec 5, 2022
42 tx · $96.7M · Dec 22, 2020
9 tx · Jul 30, 2019
3 tx · Feb 1, 2019

Track record of MAFFEI GREGORY B

Statistical track record

Free account

Open-market buys: 51

Last buy: Mar 16, 2023

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of MAFFEI GREGORY B

Co-insiders of MAFFEI GREGORY B

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
SIRIUS XM HOLDINGS INC.Listing on record	Aug 28, 2026	Award	60	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Jun 2, 2026	Award	6,775	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	May 28, 2026	Award	83	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Mar 24, 2026	Gift	-1,108	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	AwardD (derivative)	18,996	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	ExerciseD (derivative)	-16,835	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	Exercise	16,835	21.46 USD	$361.3K		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	Sell	-8,050	45.15 USD	$363.5K		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Mar 2, 2026	Award	66,862	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Nov 25, 2025	Award	98	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Aug 28, 2025	Award	92	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TripAdvisor, Inc.Listing on record	Jun 20, 2025	Award	19,171	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Jun 2, 2025	Award	7,816	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	May 29, 2025	Award	86	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	Other	-4,671,218	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	OtherD (derivative)	-26,557	—	n/a (No price was disclosed in the filing)		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	OtherD (derivative)	-572,665	—	n/a (No price was disclosed in the filing)		SEC
Old QVC Group, Inc.Listing unverified	Mar 7, 2025	Other	-108,732	6.84 USD	$743.7K		SEC
Old QVC Group, Inc.Listing unverified	Mar 6, 2025	Award	295,608	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 4, 2025	AwardD (derivative)	11,586	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Feb 26, 2025	Award	78	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-14,448	79.29 USD	$1.1M		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-82,315	80.20 USD	$6.6M	Unusual size	SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-29,093	77.33 USD	$2.2M		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-27,199	78.54 USD	$2.1M		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
SIRIUS XM HOLDINGS INC.Listing on record	Aug 28, 2026	Award	60	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Jun 2, 2026	Award	6,775	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	May 28, 2026	Award	83	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Mar 24, 2026	Gift	-1,108	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	AwardD (derivative)	18,996	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	ExerciseD (derivative)	-16,835	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	Exercise	16,835	21.46 USD	$361.3K		SEC
ZILLOW GROUP, INC.Listing on record	Mar 3, 2026	Sell	-8,050	45.15 USD	$363.5K		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Mar 2, 2026	Award	66,862	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Nov 25, 2025	Award	98	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Aug 28, 2025	Award	92	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
TripAdvisor, Inc.Listing on record	Jun 20, 2025	Award	19,171	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Jun 2, 2025	Award	7,816	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	May 29, 2025	Award	86	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	Other	-4,671,218	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	OtherD (derivative)	-26,557	—	n/a (No price was disclosed in the filing)		SEC
Liberty TripAdvisor Holdings, Inc.Listing unverified	Apr 30, 2025	OtherD (derivative)	-572,665	—	n/a (No price was disclosed in the filing)		SEC
Old QVC Group, Inc.Listing unverified	Mar 7, 2025	Other	-108,732	6.84 USD	$743.7K		SEC
Old QVC Group, Inc.Listing unverified	Mar 6, 2025	Award	295,608	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
ZILLOW GROUP, INC.Listing on record	Mar 4, 2025	AwardD (derivative)	11,586	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SIRIUS XM HOLDINGS INC.Listing on record	Feb 26, 2025	Award	78	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-14,448	79.29 USD	$1.1M		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-82,315	80.20 USD	$6.6M	Unusual size	SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-29,093	77.33 USD	$2.2M		SEC
Liberty Broadband CorpSecurity delisted	Dec 19, 2024	Sell	-27,199	78.54 USD	$2.1M		SEC