THIRD ROCK VENTURES LP

10% owner at bluebird bio, Inc. · on record since Jun 26, 2013
10% owner at AGIOS PHARMACEUTICALS, INC. · on record since Jul 31, 2013
10% owner at Foundation Medicine, Inc. · on record since Sep 24, 2013
10% owner at Eleven Biotherapeutics, Inc. · on record since Feb 13, 2014
10% owner at Larimar Therapeutics, Inc. · on record since Jun 26, 2014
10% owner at CytomX Therapeutics, Inc. · on record since Oct 23, 2015
10% owner at RHYTHM PHARMACEUTICALS, INC. · on record since Oct 11, 2017
10% owner at CONSTELLATION PHARMACEUTICALS INC · on record since Jul 24, 2018

Insider trading activity of THIRD ROCK VENTURES LP

Transactions on record: 24; since Jun 26, 2013

Open-market buys: 1; $4M

Open-market sells: 2; $4.6M

Companies traded: 4; last filing Jul 24, 2018

Figures computed from official regulatory filings — .

Companies where THIRD ROCK VENTURES LP has traded

CONSTELLATION PHARMACEUTICALS INC8 tx · $4M · Jul 24, 2018
RHYTHM PHARMACEUTICALS, INC.3 tx · Oct 11, 2017
bluebird bio, Inc.9 tx · $4.6M · Sep 12, 2014
Foundation Medicine, Inc.4 tx · Oct 2, 2013

Track record of THIRD ROCK VENTURES LP

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

Transaction history of THIRD ROCK VENTURES LP

Co-insiders of THIRD ROCK VENTURES LP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	Buy	266,667	15.00 USD	$4M	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-3,107,930	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-1,000,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-1,086,411	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-10,650,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-2,285,640	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-11,000,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	Other	2,705,334	—	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	OtherD (derivative)	-26,868,642	0.00 USD	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	Other	3,963,810	—	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	OtherD (derivative)	-9,479,502	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Sell	-87,000	36.52 USD	$3.2M	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	-79,062	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Sell	-38,000	36.59 USD	$1.4M	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	79,062	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	-1,076,920	0.00 USD	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	Other	5,943,097	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	OtherD (derivative)	-1,106,194	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	Other	276,548	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	OtherD (derivative)	-23,772,388	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-11,037,527	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	Other	4,734,248	0.00 USD	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-64,377,682	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-14,379,294	—	—	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	Buy	266,667	15.00 USD	$4M	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-3,107,930	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-1,000,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-1,086,411	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-10,650,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-2,285,640	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	OtherD (derivative)	-11,000,000	0.00 USD	—	SEC
CONSTELLATION PHARMACEUTICALS INC	Jul 24, 2018	Other	2,705,334	—	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	OtherD (derivative)	-26,868,642	0.00 USD	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	Other	3,963,810	—	—	SEC
RHYTHM PHARMACEUTICALS, INC.	Oct 11, 2017	OtherD (derivative)	-9,479,502	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Sell	-87,000	36.52 USD	$3.2M	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	-79,062	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Sell	-38,000	36.59 USD	$1.4M	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	79,062	0.00 USD	—	SEC
bluebird bio, Inc.	Sep 12, 2014	Other	-1,076,920	0.00 USD	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	Other	5,943,097	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	OtherD (derivative)	-1,106,194	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	Other	276,548	—	—	SEC
Foundation Medicine, Inc.	Oct 2, 2013	OtherD (derivative)	-23,772,388	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-11,037,527	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	Other	4,734,248	0.00 USD	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-64,377,682	—	—	SEC
bluebird bio, Inc.	Jun 26, 2013	OtherD (derivative)	-14,379,294	—	—	SEC