RS Investment Management’s Biogen BIIB Stock Holding History

RS Investment Management’s Portfolio BIIB Stock Details BIIB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2015 Q3	–	Sell	-29,507	Closed	-$11.9M	–	356
2015 Q2	$11.9M	Buy	29,507 +2,310	+8%	+$927K	0.1%	238
2015 Q1	$11.5M	Buy	27,197 +25,979	+2,133%	+$10.2M	0.1%	230
2014 Q4	$413K	Sell	1,218 -18,987	-94%	-$6.14M	﹤0.01%	347
2014 Q3	$6.68M	Buy	20,205 +3,955	+24%	+$1.3M	0.06%	270
2014 Q2	$5.12M	Sell	16,250 -1,421	-8%	-$428K	0.04%	278
2014 Q1	$5.41M	Sell	17,671 -1,807	-9%	-$574K	0.03%	265
2013 Q4	$5.45M	Buy	19,478 +1,005	+5%	+$260K	0.03%	254
2013 Q3	$4.45M	Sell	18,473 -417	-2%	-$93.3K	0.03%	250
2013 Q2	$4.07M	Buy	+18,890	New	+$4.04M	0.03%	253

Other funds holding BIIB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $26.9B AUM 34.44% 1-Year Est. Return

RS Investment Management's BIIB Position: Q3 2015 in Review

RS Investment Management sold out of Biogen (BIIB) in Q3 2015, closing a stake of 29,507 shares — an estimated $11.9M sold.

RS Investment Management first reported a position in BIIB in Q2 2013 and held it in 9 quarters. The position peaked at $11.9M in Q2 2015. 924 funds tracked by Wall St. Rank hold BIIB as of Q3 2015.

RS Investment Management reported no remaining Biogen position as of Q3 2015 after selling out during the quarter.
RS Investment Management sold 29,507 Biogen shares in Q3 2015, an estimated $11.9M.
RS Investment Management first reported a position in Biogen in Q2 2013 and held it in 9 quarters.
RS Investment Management's Biogen position peaked at $11.9M in Q2 2015.
924 funds tracked by Wall St. Rank held Biogen as of Q3 2015.

Based on RS Investment Management's 13F filing for Q3 2015, filed 4 Nov 2015.