SIGA TECHNOLOGIES INC

Ticker: SIGA CUSIP: 826917106 Class: Common Stock

B. Riley Financial, Inc.'s Holding History (CIK: 0001464790)

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

Q3 2018

Shares 21,709 Value ($000) $150 Avg Close $5.37 Range $4.23 - $6.20

Q2 2018

Shares 21,709 Value ($000) $129 Avg Close $4.75 Range $4.19 - $5.52

Q1 2018

Shares 43,418 Value ($000) $266 Avg Close $4.02 Range $3.08 - $4.96

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	21,709	$150	$5.37	$4.23 - $6.20
Q2 2018	21,709	$129	$4.75	$4.19 - $5.52
Q1 2018	43,418	$266	$4.02	$3.08 - $4.96