DRESNER DAVID A [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
01/25/2017	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Common Stock	5k	$5.48	$27.4k	01/25/2016
01/25/2017	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Common Stock	5k	$5.30	$26.5k	01/25/2016
01/25/2017	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Non-Qualified Stock Option (right to buy)	5k	$5.12	$25.6k	01/25/2016
01/23/2017	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Non-Qualified Stock Option (right to buy)	5k	$5.03	$25.2k	01/23/2017
01/12/2017	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Non-Qualified Stock Option (right to buy)	5k	$4.75	$23.8k	01/12/2017
10/10/2016	OSIRIS THERAPEUTICS, INC.	OSIR	Grant	Non-qualified Stock Option (right to buy)	5k	$4.75	$23.8k	10/10/2016
01/25/2016	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Non-Qualified Stock Option (right to buy)	5k	$5.48	$27.4k	01/25/2016
01/25/2016	OSIRIS THERAPEUTICS, INC.	OSIR	Exercise	Non-Qualified Stock Option (right to buy)	5k	$5.30	$26.5k	01/25/2016