B. Riley Wealth Advisors’s ClearSign Technologies CLIR Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q3	–	Sell	-2,665	Closed	-$128K	–	1421
2021 Q2	$128K	Hold	2,665	–	–	﹤0.01%	1286
2021 Q1	$152K	Hold	2,665	–	–	0.01%	1234
2020 Q4	$79K	Hold	2,665	–	–	﹤0.01%	1003
2020 Q3	$61K	Hold	2,665	–	–	﹤0.01%	919
2020 Q2	$56K	Sell	2,665 -408	-13%	-$3.88K	﹤0.01%	840
2020 Q1	$23K	Hold	3,073	–	–	﹤0.01%	771
2019 Q4	$24K	Sell	3,073 -479	-13%	-$4.66K	﹤0.01%	827
2019 Q3	$44K	Sell	3,552 -2,921	-45%	-$36.3K	﹤0.01%	792
2019 Q2	$75K	Sell	6,473 -1,350	-17%	-$12.4K	0.01%	765
2019 Q1	$71K	Sell	7,823 -4,440	-36%	-$48.7K	0.01%	712
2018 Q4	$126K	Buy	12,263 +620	+5%	+$8.85K	0.02%	609
2018 Q3	$187K	Sell	11,643 -661	-5%	-$12.8K	0.02%	655
2018 Q2	$247K	Buy	12,304 +1,271	+12%	+$24.7K	0.03%	542
2018 Q1	$224K	Buy	11,033 +2,680	+32%	+$65.4K	0.03%	548
2017 Q4	$302K	Sell	8,353 -490	-6%	-$16K	0.04%	445
2017 Q3	$315K	Buy	8,843 +1,320	+18%	+$43.9K	0.05%	355
2017 Q2	$286K	Buy	7,523 +2,050	+37%	+$75.3K	0.05%	377
2017 Q1	$215K	Buy	5,473 +1,760	+47%	+$63.6K	0.04%	447
2016 Q4	$127K	Buy	3,713 +2,300	+163%	+$106K	0.03%	489
2016 Q3	$85K	Buy	+1,413	New	+$70.2K	0.02%	578
2016 Q1	–	Sell	-1,030	Closed	-$50K	–	561
2015 Q4	$50K	Buy	+1,030	New	+$54.7K	0.01%	539
2015 Q1	–	Sell	-675	Closed	-$49	–	808
2014 Q4	$49	Buy	+675	New	+$45.4K	﹤0.01%	2100
2014 Q3	–	Sell	-675	Closed	-$62K	–	854
2014 Q2	$62K	Hold	675	–	–	0.01%	929
2014 Q1	$74K	Hold	675	–	–	0.02%	681
2013 Q4	$77K	Buy	675 +120	+22%	+$9.18K	0.02%	601
2013 Q3	$39K	Buy	+555	New	+$46.2K	0.01%	657