Christine J Mastandrea Whitestone Reit (WSR) insider trading activity

Christine J Mastandrea is President and COO of Whitestone REIT. Currently has a direct ownership of 462,929 shares of WSR, which is worth approximately $6.18 Million. The most recent transaction as insider was on Jan 02, 2026, when has been sold 51,998 shares (Common Shares) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 463K

12.65% 3M change

17.47% 12M change

Total Value Held $6.18 Million

Christine J Mastandrea Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 02 2026	BUY Grant, award, or other acquisition	-	51,998 Added 10.1%	462,929 Common Shares
Jun 30 2025	SELL Payment of exercise price or tax liability	$80,745 $12.48 p/Share	6,470 Reduced 1.55%	410,931 Common Shares
Jun 30 2025	BUY Grant, award, or other acquisition	-	23,323 Added 5.29%	417,401 Common Shares
Dec 31 2024	SELL Payment of exercise price or tax liability	$152,143 $14.17 p/Share	10,737 Reduced 2.65%	394,078 Common Shares
Dec 31 2024	BUY Grant, award, or other acquisition	-	29,560 Added 6.81%	404,815 Common Shares
Jun 28 2024	SELL Payment of exercise price or tax liability	$183,438 $13.31 p/Share	13,782 Reduced 3.54%	375,255 Common Shares
Jun 28 2024	BUY Grant, award, or other acquisition	-	19,223 Added 4.71%	389,037 Common Shares

Dec 31 2023	SELL Payment of exercise price or tax liability	$188,209 $12.29 p/Share	15,314 Reduced 3.98%	369,814 Common Shares
Dec 31 2023	BUY Grant, award, or other acquisition	-	60,000 Added 13.48%	385,128 Common Shares
Jul 31 2023	SELL Payment of exercise price or tax liability	$31,414 $10.32 p/Share	3,044 Reduced 0.93%	325,128 Common Shares
Jun 30 2023	SELL Payment of exercise price or tax liability	$35,259 $9.7 p/Share	3,635 Reduced 1.1%	328,172 Common Shares
Jun 30 2023	BUY Grant, award, or other acquisition	-	25,999 Added 7.27%	331,807 Common Shares
Sep 30 2022	BUY Open market or private purchase	$4,280 $8.56 p/Share	500 Added 0.16%	305,808 Common Shares
Jul 31 2022	SELL Payment of exercise price or tax liability	$34,184 $11.23 p/Share	3,044 Reduced 0.99%	305,308 Common Shares
Jun 30 2022	BUY Grant, award, or other acquisition	-	14,780 Added 4.57%	308,352 Common Shares
Jul 31 2021	SELL Payment of exercise price or tax liability	$13,470 $8.85 p/Share	1,522 Reduced 0.52%	293,572 Common Shares
Jun 30 2021	SELL Payment of exercise price or tax liability	$7,244 $8.25 p/Share	878 Reduced 0.3%	295,094 Common Shares
Jun 30 2021	BUY Grant, award, or other acquisition	-	30,000 Added 9.2%	295,972 Common Shares
Mar 16 2021	SELL Payment of exercise price or tax liability	$21,445 $10.04 p/Share	2,136 Reduced 0.8%	265,972 Common Shares
Dec 31 2020	SELL Payment of exercise price or tax liability	$18,251 $7.97 p/Share	2,290 Reduced 0.85%	268,108 Common Shares
Dec 31 2020	BUY Grant, award, or other acquisition	-	7,724 Added 2.78%	270,398 Common Shares

CJM

Christine J Mastandrea

President and COO

Houston, TX

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