Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 13 years
- Director since
- 2020
13 years of board service in total across 3 boards, counting each seat separately. Longest: Madison Square Garden Sports Corp., 6 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Selective Insurance Group Inc. April 29, 202696.4%
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Madison Square Garden Sports Corp. December 8, 2025100.0%
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AMC Global Media Inc. June 5, 2025100.0%
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Selective Insurance Group Inc. April 30, 202599.2%
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Madison Square Garden Sports Corp. December 3, 2024100.0%
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AMC Global Media Inc. June 12, 2024100.0%
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Selective Insurance Group Inc. May 1, 202497.9%
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Madison Square Garden Sports Corp. December 11, 2023100.0%
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Selective Insurance Group Inc. May 3, 202399.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 15, 2026 | AMC Global Media Inc. | Option exercise | +29,236 | $12.27 | $358,726 |
| Sep 15, 2026 | AMC Global Media Inc. | Sold back to the company | −29,236 | $12.27 | $358,726 |
| May 1, 2026 | Selective Insurance Group Inc. | Grant or award | +1,767 | — | — |
| May 2, 2025 | Selective Insurance Group Inc. | Grant or award | +2,025 | — | — |
| May 3, 2024 | Selective Insurance Group Inc. | Grant or award | +1,141 | — | — |
| May 5, 2023 | Selective Insurance Group Inc. | Grant or award | +1,065 | — | — |
Questions about Stephen Mills
What boards is Stephen Mills on?
Stephen Mills sits on the boards of AMC Global Media Inc., Madison Square Garden Sports Corp. and Selective Insurance Group Inc.
How long has Stephen Mills served on boards?
Our records show at least 13 years of board service across 3 boards, the earliest from 2020.
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