CANNABIS SCIENCE INC

CUSIP: 137648101 Class: Common / Ordinary Stock

Kovack Advisors, Inc.'s Holding History (CIK: 0001728321)

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

Q3 2017

Shares 60,000 Value ($000) $3 Avg Close — Range —

Q2 2017

Shares 60,000 Value ($000) $3 Avg Close — Range —

Q1 2017

Shares 50,000 Value ($000) $4 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	60,000	$3	—	—
Q2 2017	60,000	$3	—	—
Q1 2017	50,000	$4	—	—