Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Nexstar Media Group Inc., 3 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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Nexstar Media Group Inc. June 16, 202694.8%
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Castellum Inc. May 19, 202678.0%
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Nexstar Media Group Inc. June 17, 202586.7%
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Castellum Inc. May 28, 202599.2%
-
Nexstar Media Group Inc. June 18, 202467.9%
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Castellum Inc. May 29, 202498.3%
-
Castellum Inc. May 24, 202399.9%
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 |
|---|---|---|---|---|---|
| Jun 9, 2026 | Nexstar Media Group Inc. | Open-market sale | −1,000 | $180.00 | $180,000 |
| Mar 25, 2026 | Castellum Inc. | Open-market sale | −30,000 | $0.70 | $21,000 |
| Mar 24, 2026 | Nexstar Media Group Inc. | Option exercise | +1,123 | — | — |
| Mar 18, 2026 | Castellum Inc. | Open-market sale | −55,000 | $0.80 | $44,000 |
| Aug 21, 2025 | Castellum Inc. | Option exercise | +125,000 | $0.21 | $26,250 |
| Mar 20, 2025 | Nexstar Media Group Inc. | Option exercise | +1,560 | — | — |
| Mar 5, 2025 | Nexstar Media Group Inc. | Open-market sale | −2,000 | $169.51 | $339,020 |
| Jan 2, 2025 | Castellum Inc. | Option exercise | +100,028 | $0.21 | $21,006 |
| Dec 26, 2024 | Nexstar Media Group Inc. | Open-market sale | −750 | $159.93 | $119,948 |
| Sep 26, 2024 | Nexstar Media Group Inc. | Open-market sale | −250 | $164.44 | $41,110 |
| Sep 10, 2024 | Nexstar Media Group Inc. | Open-market sale | −1,000 | $160.00 | $160,000 |
| Jun 13, 2024 | Nexstar Media Group Inc. | Option exercise | +2,500 | $52.54 | $131,350 |
| Jun 13, 2024 | Nexstar Media Group Inc. | Open-market sale | −1,475 | $154.99 | $228,610 |
| Jun 9, 2024 | Nexstar Media Group Inc. | Option exercise | +750 | $153.82 | $115,365 |
| Jun 5, 2024 | Nexstar Media Group Inc. | Option exercise | +2,500 | $52.54 | $131,350 |
Questions about Charles Thomas McMillen
What boards is Charles Thomas McMillen on?
Charles Thomas McMillen sits on the boards of Castellum Inc. and Nexstar Media Group Inc.
How long has Charles Thomas McMillen served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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