MPM BIO VENTURES I LLC

10% owner at ACORDA THERAPEUTICS INC · on record since Feb 9, 2006
10% owner at Omrix Biopharmaceuticals, Inc. · on record since Apr 11, 2006
10% owner at Pharmasset Inc · on record since Apr 26, 2007
Former 10% Owner at Omrix Biopharmaceuticals, Inc. · on record since Nov 6, 2006
10% owner at VIACELL INC · on record since Feb 12, 2007
Former 10% Owner at Pharmasset Inc · on record since Jun 23, 2008
10% owner at OSCIENT PHARMACEUTICALS CORP · on record since May 29, 2009
10% owner at IDENIX PHARMACEUTICALS INC · on record since Jul 21, 2004
Former 10% owner at OSCIENT PHARMACEUTICALS CORP · on record since Aug 17, 2005

Insider trading activity of MPM BIO VENTURES I LLC

Figures computed from official regulatory filings — methodology.

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Company	Filed	Type	Qty	Price	Value · USD	Src
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	OtherD	0	0.00	$0	SEC
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	Other	4,222	1.10	$4.6K	SEC
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	OtherD	0	0.00	$0	SEC
VIACELL INC	Jan 28, 2005	OtherD	-2,000,000	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	1,666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	125,000	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	1,213	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	Other	666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	12,620	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	Other	2,000,000	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-194,128	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-125,000	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-1,666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	194,128	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	111,167	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-470,155	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	470,155	—	—	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	OtherD	0	0.00	$0	SEC
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	Other	4,222	1.10	$4.6K	SEC
OSCIENT PHARMACEUTICALS CORP	May 29, 2009	OtherD	0	0.00	$0	SEC
VIACELL INC	Jan 28, 2005	OtherD	-2,000,000	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	1,666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	125,000	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	1,213	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	Other	666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	12,620	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	Other	2,000,000	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-194,128	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-125,000	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-1,666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-666,667	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	194,128	—	—	SEC
VIACELL INC	Jan 28, 2005	BuyD	111,167	8.00 USD	—	SEC
VIACELL INC	Jan 28, 2005	OtherD	-470,155	—	—	SEC
VIACELL INC	Jan 28, 2005	Other	470,155	—	—	SEC