Congress Asset Management’s Biogen BIIB Stock Holding History

Congress Asset 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 Q4	–	Sell	-138,295	Closed	-$40.4M	–	229
2015 Q3	$40.4M	Buy	138,295 +27,535	+25%	+$9.09M	1.04%	37
2015 Q2	$44.7M	Sell	110,760 -25,281	-19%	-$10.1M	1.29%	21
2015 Q1	$57.4M	Sell	136,041 -8,811	-6%	-$3.47M	1.38%	24
2014 Q4	$49.2M	Sell	144,852 -5,094	-3%	-$1.65M	1.25%	37
2014 Q3	$49.6M	Buy	+149,946	New	+$49.4M	1.27%	39

Other funds holding BIIB

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 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

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

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 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

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Congress Asset Management's BIIB Position: Q4 2015 in Review

Congress Asset Management sold out of Biogen (BIIB) in Q4 2015, closing a stake of 138,295 shares — an estimated $40.4M sold.

Congress Asset Management first reported a position in BIIB in Q3 2014 and held it in 5 quarters. The position peaked at $57.4M in Q1 2015. 970 funds tracked by Wall St. Rank hold BIIB as of Q4 2015.

Congress Asset Management reported no remaining Biogen position as of Q4 2015 after selling out during the quarter.
Congress Asset Management sold 138,295 Biogen shares in Q4 2015, an estimated $40.4M.
Congress Asset Management first reported a position in Biogen in Q3 2014 and held it in 5 quarters.
Congress Asset Management's Biogen position peaked at $57.4M in Q1 2015.
970 funds tracked by Wall St. Rank held Biogen as of Q4 2015.

Based on Congress Asset Management's 13F filing for Q4 2015, filed 26 Jan 2016.