ATLAS VENTURE FUND V LP

10% owner at ALNYLAM PHARMACEUTICALS, INC. · on record since Feb 27, 2006
10% owner at HELICOS BIOSCIENCES CORP · on record since May 31, 2007
10% owner at ACHILLION PHARMACEUTICALS INC · on record since Oct 25, 2006
10% owner at Isilon Systems, Inc. · on record since Dec 21, 2006
Director at HELICOS BIOSCIENCES CORP · on record since Dec 29, 2008
10% owner at MOMENTA PHARMACEUTICALS INC · on record since Jun 24, 2004
10% owner at Phase Forward Inc · on record since Jul 13, 2004
10% owner at NxStage Medical, Inc. · on record since Oct 27, 2005

Insider trading activity of ATLAS VENTURE FUND V LP

Transactions on record: 114; since Jun 7, 2004

Open-market buys: 28; $6.2M

Open-market sells: 5; $10.1M

Companies traded: 4; last filing Aug 3, 2010

Figures computed from official regulatory filings — .

Companies where ATLAS VENTURE FUND V LP has traded

Isilon Systems, Inc.14 tx · $11M · Aug 3, 2010
NxStage Medical, Inc.1 tx · $999.2K · Oct 31, 2005
ALNYLAM PHARMACEUTICALS, INC.45 tx · $2.7M · Oct 3, 2005
MOMENTA PHARMACEUTICALS INC54 tx · $1.6M · Aug 5, 2005

Track record of ATLAS VENTURE FUND V LP

Statistical track record

Free account

Open-market buys: 28

Last buy: Nov 14, 2008

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of ATLAS VENTURE FUND V LP

Co-insiders of ATLAS VENTURE FUND V LP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-300,000	18.12	$5.4M	Unusual size	SEC
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-44,700	17.67	$789.8K		SEC
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-100,000	17.47	$1.7M		SEC
Isilon Systems, Inc.Listing unverified	May 6, 2010	Sell	-100,000	14.01	$1.4M		SEC
Isilon Systems, Inc.Listing unverified	May 6, 2010	Sell	-50,000	14.50	$725K		SEC
Isilon Systems, Inc.Listing unverified	Nov 17, 2008	Buy	12,145	3.43	$41.7K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 17, 2008	Buy	57,131	3.36	$192K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	36,666	3.46	$126.9K	conv 25Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	33,748	3.43	$115.8K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	65,486	3.35	$219.4K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 10, 2008	Buy	20,843	3.43	$71.5K	conv 24Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 10, 2008	Buy	4,600	3.47	$16K	conv 24Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 6, 2008	Buy	4,085	3.46	$14.1K	conv 37ClusterFirst in 12mo	SEC
Isilon Systems, Inc.Listing unverified	Nov 6, 2008	Buy	38,722	3.38	$130.9K	conv 25Cluster	SEC
NxStage Medical, Inc.Listing unverified	Oct 31, 2005	Buy	99,923	10.00 USD	$999.2K	conv 77ClusterUnusual size+1	SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-10,366	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-383,845	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-211,444	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-26,265	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-401,239	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-7,028	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-3,518	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-267,492	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-26,265	—	n/a (No price was disclosed in the filing)		SEC
MOMENTA PHARMACEUTICALS INCListing unverified	Aug 5, 2005	Other	-10,267	—	n/a (No price was disclosed in the filing)		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-300,000	18.12	$5.4M	Unusual size	SEC
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-44,700	17.67	$789.8K		SEC
Isilon Systems, Inc.Listing unverified	Aug 3, 2010	Sell	-100,000	17.47	$1.7M		SEC
Isilon Systems, Inc.Listing unverified	May 6, 2010	Sell	-100,000	14.01	$1.4M		SEC
Isilon Systems, Inc.Listing unverified	May 6, 2010	Sell	-50,000	14.50	$725K		SEC
Isilon Systems, Inc.Listing unverified	Nov 17, 2008	Buy	12,145	3.43	$41.7K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 17, 2008	Buy	57,131	3.36	$192K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	36,666	3.46	$126.9K	conv 25Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	33,748	3.43	$115.8K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 12, 2008	Buy	65,486	3.35	$219.4K	conv 7	SEC
Isilon Systems, Inc.Listing unverified	Nov 10, 2008	Buy	20,843	3.43	$71.5K	conv 24Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 10, 2008	Buy	4,600	3.47	$16K	conv 24Cluster	SEC
Isilon Systems, Inc.Listing unverified	Nov 6, 2008	Buy	4,085	3.46	$14.1K	conv 37ClusterFirst in 12mo	SEC
Isilon Systems, Inc.Listing unverified	Nov 6, 2008	Buy	38,722	3.38	$130.9K	conv 25Cluster	SEC
NxStage Medical, Inc.Listing unverified	Oct 31, 2005	Buy	99,923	10.00 USD	$999.2K	conv 77ClusterUnusual size+1	SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-10,366	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-383,845	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-211,444	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-26,265	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-401,239	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-7,028	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-3,518	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-267,492	—	n/a (No price was disclosed in the filing)		SEC
ALNYLAM PHARMACEUTICALS, INC.Listing on record	Oct 3, 2005	Other	-26,265	—	n/a (No price was disclosed in the filing)		SEC
MOMENTA PHARMACEUTICALS INCListing unverified	Aug 5, 2005	Other	-10,267	—	n/a (No price was disclosed in the filing)		SEC