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: SBA Communications Corporation, 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
SBA Communications Corporation May 23, 202489.7%
-
Vistance Networks Inc. May 11, 202398.6%
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 1, 2026 | SBA Communications Corporation | Option exercise | +248 | — | — |
| May 1, 2026 | SBA Communications Corporation | Option exercise | +302 | — | — |
| May 1, 2026 | SBA Communications Corporation | Option exercise | +331 | — | — |
| May 1, 2026 | SBA Communications Corporation | Shares withheld for tax | −326 | $221.20 | $72,105 |
| Apr 13, 2026 | SBA Communications Corporation | Option exercise | +1,501 | $212.31 | $318,677 |
| Apr 13, 2026 | SBA Communications Corporation | Shares withheld for tax | −1,453 | $223.75 | $325,109 |
| May 1, 2025 | SBA Communications Corporation | Option exercise | +175 | — | — |
| May 1, 2025 | SBA Communications Corporation | Option exercise | +248 | — | — |
| May 1, 2025 | SBA Communications Corporation | Option exercise | +302 | — | — |
| May 1, 2025 | SBA Communications Corporation | Shares withheld for tax | −268 | $243.40 | $65,292 |
| Feb 28, 2025 | SBA Communications Corporation | Option exercise | +1,411 | $157.51 | $222,247 |
| Feb 28, 2025 | SBA Communications Corporation | Open-market sale | −1,411 | $218.07 | $307,697 |
| May 1, 2024 | SBA Communications Corporation | Option exercise | +207 | — | — |
| May 1, 2024 | SBA Communications Corporation | Option exercise | +175 | — | — |
| May 1, 2024 | SBA Communications Corporation | Option exercise | +247 | — | — |
Questions about Mary S. Chan
What boards is Mary S. Chan on?
Mary S. Chan sits on the boards of SBA Communications Corporation and Vistance Networks Inc.
How long has Mary S. Chan served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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