William S. Rosenstadt
CEO and Chairman at Blueport Acquisition Ltd
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 1 year
- Director since
- 2025
1 year of board service in total across 1 board, counting each seat separately. Longest: Blueport Acquisition Ltd, 1 year.
Chief executive roles
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 |
|---|---|---|---|---|---|
| Nov 13, 2025 | Blueport Acquisition Ltd | Open-market purchase | +197,250 | — | — |
Questions about William S. Rosenstadt
What boards is William S. Rosenstadt on?
William S. Rosenstadt sits on the board of Blueport Acquisition Ltd.
What company is William S. Rosenstadt the CEO of?
William S. Rosenstadt has been CEO and Chairman of Blueport Acquisition Ltd since November 2025.
How long has William S. Rosenstadt served on boards?
Our records show at least 1 year of board service across 1 board, the earliest from 2025.
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