Mastandrea Christine J
SEC insider (Form 3/4/5 filer). CIK 0001603592. President and COO at Whitestone REIT (WSR). 9 reported Form 4/5 transactions since Sep 2024; latest on Jul 14, 2026. Located in HOUSTON, TX.
Companies Mastandrea Christine J has filed insider reports for
- Whitestone REIT (WSR): Officer, President and COO
Mastandrea Christine J
CIK: 0001603592
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)5 (55.6%)
Compensation grants
Other (G, F, J, C, D, …)4 (44.4%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
WSR
Whitestone REIT
Officer
Discretionary Trading P&L
Holdings
Transaction History (9 total)
- Jul 14, 2026WSR
Whitestone REIT
AwardDirect246.4K shares- - Jul 14, 2026WSR
Whitestone REIT
DispositionDirect718.9K shares at avg. $19.00$13.7M - Jun 30, 2026WSR
Whitestone REIT
Tax PaymentDirect9K shares at avg. $18.96$170K - Apr 1, 2026WSR
Whitestone REIT
AwardDirect18.5K shares- - Jan 2, 2026WSR
Whitestone REIT
AwardDirect52K shares- - Jun 30, 2025WSR
Whitestone REIT
Tax PaymentDirect6.5K shares at avg. $12.48$81K - Jun 30, 2025WSR
Whitestone REIT
AwardDirect23.3K shares- - Dec 31, 2024WSR
Whitestone REIT
AwardDirect29.6K shares- - Dec 31, 2024WSR
Whitestone REIT
Tax PaymentDirect10.7K shares at avg. $14.17$152K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 14, 2026 | WSR Whitestone REIT | Award | 246,410 | - | $0 | Direct |
| Jul 14, 2026 | WSR Whitestone REIT | Disposition | 718,873 | $19.00 | $13,658,587 | Direct |
| Jun 30, 2026 | WSR Whitestone REIT | Tax Payment | 8,991 | $18.96 | $170,469 | Direct |
| Apr 1, 2026 | WSR Whitestone REIT | Award | 18,525 | - | $0 | Direct |
| Jan 2, 2026 | WSR Whitestone REIT | Award | 51,998 | - | $0 | Direct |
| Jun 30, 2025 | WSR Whitestone REIT | Tax Payment | 6,470 | $12.48 | $80,746 | Direct |
| Jun 30, 2025 | WSR Whitestone REIT | Award | 23,323 | - | - | Direct |
| Dec 31, 2024 | WSR Whitestone REIT | Award | 29,560 | - | $0 | Direct |
| Dec 31, 2024 | WSR Whitestone REIT | Tax Payment | 10,737 | $14.17 | $152,143 | Direct |
1-9 of 9 transactions