B. Riley Wealth Advisors’s Mandiant, Inc. Common Stock MNDT Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q4	–	Sell	-10,988	Closed	-$196K	–	1519
2021 Q3	$196K	Sell	10,988 -185	-2%	-$3.51K	0.01%	1251
2021 Q2	$226K	Sell	11,173 -825	-7%	-$16.9K	0.01%	1162
2021 Q1	$236K	Buy	+11,998	New	+$251K	0.01%	1113
2016 Q4	–	Sell	-11,187	Closed	-$165K	–	653
2016 Q3	$165K	Sell	11,187 -4,811	-30%	-$73.9K	0.03%	553
2016 Q2	$264K	Sell	15,998 -1,187	-7%	-$19.2K	0.05%	440
2016 Q1	$309K	Sell	17,185 -647	-4%	-$10.5K	0.07%	344
2015 Q4	$370K	Sell	17,832 -1,650	-8%	-$41.4K	0.07%	307
2015 Q3	$620K	Buy	19,482 +3,781	+24%	+$158K	0.15%	191
2015 Q2	$768K	Sell	15,701 -5,191	-25%	-$235K	0.19%	144
2015 Q1	$820K	Sell	20,892 -3,778	-15%	-$146K	0.2%	138
2014 Q4	$779	Sell	24,670 -1,650	-6%	-$50.6K	0.02%	808
2014 Q3	$804K	Sell	26,320 -2,920	-10%	-$96.7K	0.21%	129
2014 Q2	$573K	Buy	29,240 +26,540	+983%	+$1.03M	0.13%	177
2014 Q1	$166K	Buy	+2,700	New	+$191K	0.05%	448