SIGA TECHNOLOGIES INC

Ticker: SIGA CUSIP: 826917106 Class: Common Stock

B. Riley Wealth Advisors, Inc.'s Holding History (CIK: 0001464811)

Note: Option positions (PUT/CALL) are excluded.

Q4 2014

Shares 425 Value ($000) $1 Avg Close $1.11 Range $0.97 - $1.31

Q2 2014

Shares 12,425 Value ($000) $35,039 Avg Close $2.05 Range $1.82 - $2.37

Q1 2014

Shares 38,425 Value ($000) $119 Avg Close $2.42 Range $2.15 - $2.83

Q4 2013

Shares 40,925 Value ($000) $134 Avg Close $2.47 Range $2.12 - $3.04

Q3 2013

Shares 48,425 Value ($000) $185 Avg Close $2.51 Range $2.06 - $2.93

Q2 2013

Shares 40,425 Value ($000) $115 Avg Close $2.46 Range $1.99 - $2.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	425	$1	$1.11	$0.97 - $1.31
Q2 2014	12,425	$35,039	$2.05	$1.82 - $2.37
Q1 2014	38,425	$119	$2.42	$2.15 - $2.83
Q4 2013	40,925	$134	$2.47	$2.12 - $3.04
Q3 2013	48,425	$185	$2.51	$2.06 - $2.93
Q2 2013	40,425	$115	$2.46	$1.99 - $2.93