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Who

Stephen Mills

Director

Company insider

Files Form 4 as: Director, AMC Global Media; Director, Selective Insurance Group; Director, Madison Square Garden Sports; Director, Msg Networks.

In numbers

Trades disclosed
25
Buys
0
Sells
0
Bought
$0
Sold
$0
Companies
4
Companies where not an officer
4
First trade
19 May 2020
Last trade
15 Sep 2026
Last filed
16 Sep 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
AMCX AMC Global MediaDirector · Broadcasting & cable · last 15 Sep 20260 buys · 0 sells
SIGI Selective Insurance GroupDirector · Insurance · last 1 May 20260 buys · 0 sells
MSGS Madison Square Garden SportsDirector · Entertainment, Gaming & Leisure Services · last 8 Dec 20250 buys · 0 sells
Msg NetworksDirector · last 9 Jul 20210 buys · 0 sells

Activity over time

Not enough dated trades to draw.

Every trade

TradedCompanyWhatAmount
15 Sep 2026filed 16 Sep 2026AMCX AMC Global MediaBroadcasting & cableSEC FORM 4 Code M$359K29,236 at $12.27filing
15 Sep 2026filed 16 Sep 2026AMCX AMC Global MediaBroadcasting & cableSEC FORM 4 Code D$359K29,236 at $12.27filing
15 Sep 2026filed 16 Sep 2026AMCX AMC Global Mediaoption or derivative · Broadcasting & cableSEC FORM 4 Code M—29,236filing
15 Sep 2026filed 16 Sep 2026AMCX AMC Global Mediaoption or derivative · Broadcasting & cableSEC FORM 4 Code M—29,236filing
15 Sep 2026filed 16 Sep 2026AMCX AMC Global MediaBroadcasting & cableSEC FORM 4 Code M$359K29,236 at $12.27filing
15 Sep 2026filed 16 Sep 2026AMCX AMC Global MediaBroadcasting & cableSEC FORM 4 Code D$359K29,236 at $12.27filing
1 May 2026filed 4 May 2026SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—1,767 at $0.00filing
1 May 2026filed 4 May 2026SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—1,767 at $0.00filing
8 Dec 2025filed 10 Dec 2025MSGS Madison Square Garden Sportsoption or derivative · Entertainment, Gaming & Leisure ServicesSEC FORM 4 Code A—727 at $0.00filing
5 Jun 2025filed 9 Jun 2025AMCX AMC Global Mediaoption or derivative · Broadcasting & cableSEC FORM 4 Code A—21,194filing
2 May 2025filed 5 May 2025SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—2,025 at $0.00filing
4 Dec 2024filed 6 Dec 2024MSGS Madison Square Garden Sportsoption or derivative · Entertainment, Gaming & Leisure ServicesSEC FORM 4 Code A—709 at $0.00filing
12 Jun 2024filed 13 Jun 2024AMCX AMC Global Mediaoption or derivative · Broadcasting & cableSEC FORM 4 Code A—8,042filing
3 May 2024filed 6 May 2024SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—1,141 at $0.00filing
11 Dec 2023filed 12 Dec 2023MSGS Madison Square Garden Sportsoption or derivative · Entertainment, Gaming & Leisure ServicesSEC FORM 4 Code A—937 at $0.00filing
5 May 2023filed 8 May 2023SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—1,065 at $0.00filing
9 Dec 2022filed 13 Dec 2022MSGS Madison Square Garden Sportsoption or derivative · Entertainment, Gaming & Leisure ServicesSEC FORM 4 Code A—1,027 at $0.00filing
6 May 2022filed 9 May 2022SIGI Selective Insurance GroupInsuranceSEC FORM 4 Code A—1,172 at $0.00filing
8 Dec 2021filed 10 Dec 2021MSGS Madison Square Garden Sportsoption or derivative · Entertainment, Gaming & Leisure ServicesSEC FORM 4 Code A—884 at $0.00filing
9 Jul 2021filed 13 Jul 2021Msg Networksoption or derivativeSEC FORM 4 Code D—11,338filing

News

No headline names them, or the companies they trade most, lately.

Sectors

No trade we could place in a sector.

Related people

Paul M. DiCiccoEVP, CFO & Treasurer · EVP, CFO & Treasurer at Madison Square Garden Sports, filing Form 4 there in the last year
Michael J. Sherin IIIEVP & Chief Accounting Officer · EVP & Chief Accounting Officer at AMC Networks, filing Form 4 there in the last year
Christopher RippSVP, Controller and PAO · SVP, Controller and PAO at Madison Square Garden Sports, filing Form 4 there in the last year
James Lawrence DolanExecutive Chairman and CEO · Executive Chairman / CEO at Madison Square Garden Sports, filing Form 4 there in the last year
Jamaal T. LesaneChief Operating Officer · Chief Operating Officer at Madison Square Garden Sports, filing Form 4 there in the last year