Senator Investment Group’s Biogen BIIB Stock Holding History

Senator Investment 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
2023 Q2	–	Sell	-40,000	Closed	-$11.1M	–	56
2023 Q1	$11.1M	Sell	40,000 -10,000	-20%	-$2.77M	0.61%	36
2022 Q4	$13.8M	Buy	+50,000	New	+$14.1M	1.25%	28
2017 Q3	–	Sell	-500,000	Closed	-$136M	–	50
2017 Q2	$136M	Buy	+500,000	New	+$132M	1.69%	28
2016 Q4	–	Sell	-455,000	Closed	-$142M	–	45
2016 Q3	$142M	Sell	455,000 -45,000	-9%	-$13.3M	1.94%	18
2016 Q2	$121M	Buy	500,000 +300,000	+150%	+$79.1M	1.94%	20
2016 Q1	$52.1M	Sell	200,000 -100,000	-33%	-$26.4M	0.69%	39
2015 Q4	$91.9M	Sell	300,000 -50,000	-14%	-$14.4M	1.15%	35
2015 Q3	$102M	Buy	+350,000	New	+$116M	1.26%	31

Other funds holding BIIB

Primecap Management

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

BlackRock New York $5.7T AUM 30.48% 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

Wellington Management Group

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

JP Morgan Chase

JP Morgan Chase New York $1.47T AUM 27.86% 1-Year Est. Return

T. Rowe Price Investment Management

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Geode Capital Management

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

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

ClearBridge Investments

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