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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1526119	Verastem Inc.	VSTM	Pharmaceutical Preparations (2834)	273269467

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1134657	Luke Evnin	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1180429	M Vaughn Kailian	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1352447	Steven Peter St	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1356950	Paul James Scopa	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1379218	John Vort Vander	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1473930	Todd Foley	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1482714	Mpm Bioventures V Gp Llc	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1482715	Mpm Bioventures V Llc	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1482716	Mpm Bioventures V, L.p.	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes
1541412	Mpm Asset Management Investors Bv5 Llc	C/O Mpm Asset Management 200 Clarendon Street, 54Th Floor Boston MA 02116	No	No	No	Yes

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2012-02-01	1,933,333	$0.00	1,933,333	No	4	C	Indirect	By MPM BioVentures V, L.P.
Common Stoc	Acquisiton	2012-02-01	100,000	$10.00	2,033,333	No	4	P	Indirect	By Funds

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	C	Indirect	By MPM BioVentures V, L.P.
No	4	P	Indirect	By Funds

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Series A Preferred Stock	Disposition	2012-02-01	4,000,000	$0.00	1,142,857	$0.00
Common Stock	Series B Preferred Stock	Disposition	2012-02-01	2,500,000	$0.00	714,286	$0.00
Common Stock	Seriec C Preferred Stock	Disposition	2012-02-01	266,666	$0.00	76,190	$0.00

Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
No	4	C	Indirect
No	4	C	Indirect
No	4	C	Indirect

Footnotes

Each share of preferred stock converted into approximately 0.29 shares of common stock upon the closing of the issuer's initial public offering. The shares had no expiration date.
MPM BioVentures V GP LLC ("MPM V GP") is the general partner of MPM BioVentures V, L.P. ("MPM V LP") and MPM BioVentures V LLC ("MPM V LLC") is the managing member of MPM V GP. Luke Evnin, Todd Foley, Ansbert Gadicke, Vaughn Kailian, James Scopa, Steven St. Peter and John Vander Vort are the members of MPM V LLC and share the power to vote, hold and dispose of the shares held by MPM V LP. Each reporting person disclaims beneficial ownership of the securities reported herein except to the extent of his or its respective pecuniary interest therein.
Shares were purchased as follows: 96,260 by MPM BioVentures V, L.P. and 3,740 by MPM Asset Management Investors BV5 LLC.
Shares are held as follows: 2,029,593 by MPM BioVentures V, L.P. and 3,740 by MPM Asset Management Investors BV5 LLC.
MPM BioVentures V LLC ("MPM V LLC") is the managing member of MPM Asset Management Investors BV5 LLC ("MPM Asset"). Luke Evnin, Todd Foley, Ansbert Gadicke, Vaughn Kailian, James Scopa, Steven St. Peter and John Vander Vort are the members of MPM V LLC and share the power to vote, hold and dispose of the shares held by MPM Asset. Each reporting person disclaims beneficial ownership of the securities reported herein except to the extent of his or its respective pecuniary interest therein.