Sweeney Brian

Trustee of 13(d) Group Member at AMC Networks Inc. · on record since Jun 20, 2023
Trustee of 13(d) Group Member at Madison Square Garden Entertainment Corp. · on record since Apr 3, 2023
Director at CABLEVISION SYSTEMS CORP /NY · on record since Apr 13, 2006
Trustee of 13D Group Member at Madison Square Garden Sports Corp. · on record since Dec 12, 2023
Director at Madison Square Garden, Inc. · on record since Mar 31, 2010
Director at AMC Networks Inc. · on record since Jun 30, 2011
Director at Sphere Entertainment Co. · on record since Jun 12, 2026
Trustee of 13(d) Group Member at Sphere Entertainment Co. · on record since Jun 12, 2026
Member of 13D Group at CABLEVISION SYSTEMS CORP /NY · on record since May 15, 2015
President and CFO at CABLEVISION SYSTEMS CORP /NY · on record since Mar 14, 2016
Director at Madison Square Garden Entertainment Corp. · on record since May 26, 2020
Director at Madison Square Garden Sports Corp. · on record since Dec 22, 2020

Insider trading activity of Sweeney Brian

Transactions on record: 127; since Nov 10, 2005

Open-market buys: 0

Open-market sells: 4; $871.9K

Companies traded: 6; last filing Jun 18, 2026

Figures computed from official regulatory filings — methodology.

Companies where Sweeney Brian has traded

AMC Networks Inc.17 tx · $23.3M · Jun 18, 2026
Sphere Entertainment Co.1 tx · Jun 12, 2026
Madison Square Garden Sports Corp.4 tx · Dec 6, 2024
Madison Square Garden Entertainment Corp.5 tx · Dec 14, 2021
Madison Square Garden, Inc.34 tx · $245.9K · Dec 8, 2020
CABLEVISION SYSTEMS CORP /NY66 tx · $16M · Jun 21, 2016

Track record of Sweeney Brian

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Sweeney Brian

Co-insiders of Sweeney Brian

This page republishes public regulatory disclosures. Concerned by this data? Exercise your right to object →

Company	Filed	Type	Qty	Price	Value · USD	Src
AMC Networks Inc.	Jun 18, 2026	AwardD	10,926	—	—	SEC
Sphere Entertainment Co.	Jun 12, 2026	AwardD	1,173	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 9, 2025	AwardD	21,194	—	—	SEC
Madison Square Garden Sports Corp.	Dec 6, 2024	AwardD	709	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 14, 2024	AwardD	8,042	—	—	SEC
Madison Square Garden Sports Corp.	Dec 12, 2023	AwardD	937	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 20, 2023	AwardD	10,970	—	—	SEC
Madison Square Garden Entertainment Corp.	Dec 14, 2021	AwardD	2,288	0.00 USD	$0	SEC
Madison Square Garden Sports Corp.	Dec 10, 2021	AwardD	884	0.00 USD	$0	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	4,654	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	1,167	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	AwardD	9,632	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	3,547	—	—	SEC
Madison Square Garden Sports Corp.	Dec 22, 2020	AwardD	626	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 8, 2020	AwardD	9,718	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 15, 2020	AwardD	4,195	—	—	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	112,692	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	-112,692	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	Gift	6,163	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	-225,385	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 10, 2018	AwardD	416	0.00 USD	$0	SEC
AMC Networks Inc.	Dec 10, 2018	OtherD	401,833	57.50 USD	$23.1M	SEC
AMC Networks Inc.	Dec 10, 2018	Gift	57,031	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 15, 2017	AwardD	513	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 8, 2017	AwardD	6,261	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
AMC Networks Inc.	Jun 18, 2026	AwardD	10,926	—	—	SEC
Sphere Entertainment Co.	Jun 12, 2026	AwardD	1,173	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 9, 2025	AwardD	21,194	—	—	SEC
Madison Square Garden Sports Corp.	Dec 6, 2024	AwardD	709	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 14, 2024	AwardD	8,042	—	—	SEC
Madison Square Garden Sports Corp.	Dec 12, 2023	AwardD	937	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 20, 2023	AwardD	10,970	—	—	SEC
Madison Square Garden Entertainment Corp.	Dec 14, 2021	AwardD	2,288	0.00 USD	$0	SEC
Madison Square Garden Sports Corp.	Dec 10, 2021	AwardD	884	0.00 USD	$0	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	4,654	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	1,167	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	AwardD	9,632	—	—	SEC
Madison Square Garden Entertainment Corp.	Jul 13, 2021	Award	3,547	—	—	SEC
Madison Square Garden Sports Corp.	Dec 22, 2020	AwardD	626	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 8, 2020	AwardD	9,718	0.00 USD	$0	SEC
AMC Networks Inc.	Jun 15, 2020	AwardD	4,195	—	—	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	112,692	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	-112,692	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	Gift	6,163	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Feb 14, 2019	GiftD	-225,385	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 10, 2018	AwardD	416	0.00 USD	$0	SEC
AMC Networks Inc.	Dec 10, 2018	OtherD	401,833	57.50 USD	$23.1M	SEC
AMC Networks Inc.	Dec 10, 2018	Gift	57,031	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 15, 2017	AwardD	513	0.00 USD	$0	SEC
Madison Square Garden, Inc.	Dec 8, 2017	AwardD	6,261	0.00 USD	$0	SEC