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: Array Digital Infrastructure Inc., 3 years.
Chief executive roles
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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Telephone and Data Systems Inc. May 21, 2026100.0%
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Array Digital Infrastructure Inc. May 19, 2026100.0%
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Array Digital Infrastructure Inc. October 9, 2025100.0%
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Telephone and Data Systems Inc. May 22, 2025100.0%
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Telephone and Data Systems Inc. May 22, 2024100.0%
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Array Digital Infrastructure Inc. May 21, 2024100.0%
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Telephone and Data Systems Inc. May 18, 2023100.0%
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Array Digital Infrastructure Inc. May 16, 2023100.0%
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 |
|---|---|---|---|---|---|
| May 21, 2026 | Telephone and Data Systems Inc. | Grant or award | +11,905 | $41.20 | $490,486 |
| May 21, 2026 | Telephone and Data Systems Inc. | Shares withheld for tax | −5,016 | $41.20 | $206,659 |
| Aug 1, 2025 | Array Digital Infrastructure Inc. | Grant or award | +1,146 | $73.50 | $84,231 |
| May 22, 2025 | Telephone and Data Systems Inc. | Grant or award | +2,479 | $33.83 | $83,865 |
| May 22, 2024 | Telephone and Data Systems Inc. | Grant or award | +6,320 | $19.25 | $121,660 |
| May 21, 2024 | Array Digital Infrastructure Inc. | Grant or award | +2,836 | $43.01 | $121,976 |
| Apr 16, 2024 | Telephone and Data Systems Inc. | Inheritance | +118,135 | — | — |
| Apr 16, 2024 | Telephone and Data Systems Inc. | Inheritance | +71,989 | — | — |
| May 17, 2023 | Telephone and Data Systems Inc. | Grant or award | +1,129 | $7.14 | $8,061 |
| May 15, 2023 | Array Digital Infrastructure Inc. | Grant or award | +1,372 | $15.18 | $20,827 |
| Mar 1, 2023 | Telephone and Data Systems Inc. | Grant or award | +8,258 | $12.11 | $100,004 |
| Mar 1, 2023 | Array Digital Infrastructure Inc. | Grant or award | +4,291 | $23.31 | $100,023 |
Questions about Walter Cd Carlson
What boards is Walter Cd Carlson on?
Walter Cd Carlson sits on the boards of Array Digital Infrastructure Inc. and Telephone and Data Systems Inc.
What company is Walter Cd Carlson the CEO of?
Walter Cd Carlson is President and CEO of Telephone and Data Systems Inc.
How long has Walter Cd Carlson served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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