Rosenstadt William S
SEC insider (Form 3/4/5 filer). CIK 0001461959. CEO and Chairman at Blueport Acquisition Ltd (BPAC). 1 reported Form 4/5 transaction since Sep 2024; latest on Nov 13, 2025. Located in NEW YORK, NY.
Companies Rosenstadt William S has filed insider reports for
- Blueport Acquisition Ltd (BPAC): Director, Officer, 10% Owner, CEO and Chairman
Rosenstadt William S
CIK: 0001461959
Transaction Breakdown
Open Market Buys (P)1 (100.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
BPAC
Blueport Acquisition Ltd
DirectorOfficer10% Owner