Ellington Management Group’s Biogen BIIB Stock Holding History

Ellington Management Group’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
2019 Q4	–	Sell	-1,500	Closed	-$349K	–	525
2019 Q3	$349K	Sell	1,500 -2,300	-61%	-$536K	0.08%	324
2019 Q2	$889K	Buy	+3,800	New	+$877K	0.18%	149
2019 Q1	–	Sell	-1,200	Closed	-$361K	–	563
2018 Q4	$361K	Buy	+1,200	New	+$383K	0.13%	199
2018 Q3	–	Sell	-700	Closed	-$203K	–	515
2018 Q2	$203K	Sell	700 -1,000	-59%	-$281K	0.06%	410
2018 Q1	$465K	Buy	+1,700	New	+$528K	0.07%	432
2017 Q3	–	Sell	-3,000	Closed	-$814K	–	642
2017 Q2	$814K	Buy	3,000 +800	+36%	+$212K	0.22%	123
2017 Q1	$602K	Hold	2,200	–	–	0.15%	259
2016 Q4	$624K	Buy	+2,200	New	+$652K	0.21%	172
2014 Q4	–	Sell	-1,300	Closed	-$430K	–	563
2014 Q3	$430K	Buy	+1,300	New	+$429K	0.3%	70
2013 Q3	–	Sell	-1,400	Closed	-$301K	–	766
2013 Q2	$301K	Buy	+1,400	New	+$299K	0.06%	511

Other funds holding BIIB

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Primecap Management

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

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

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

ClearBridge Investments

ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

Wellington Management Group

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Renaissance Technologies

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

AQR Capital Management

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return