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	1.53%	28
2016 Q4	–	Sell	-455,000	Closed	-$142M	–	45
2016 Q3	$142M	Sell	455,000 -45,000	-9%	-$13.3M	1.88%	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	1.25%	31

Other funds holding BIIB

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

BlackRock New York $6.73T AUM 46.02% 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

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

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

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

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

Senator Investment Group's BIIB Position: Q2 2023 in Review

Senator Investment Group sold out of Biogen (BIIB) in Q2 2023, closing a stake of 40,000 shares — an estimated $11.1M sold.

Senator Investment Group first reported a position in BIIB in Q3 2015 and held it in 8 quarters. The position peaked at $142M in Q3 2016. 1,008 funds tracked by Wall St. Rank hold BIIB as of Q2 2023.

Senator Investment Group reported no remaining Biogen position as of Q2 2023 after selling out during the quarter.
Senator Investment Group sold 40,000 Biogen shares in Q2 2023, an estimated $11.1M.
Senator Investment Group first reported a position in Biogen in Q3 2015 and held it in 8 quarters.
Senator Investment Group's Biogen position peaked at $142M in Q3 2016.
1,008 funds tracked by Wall St. Rank held Biogen as of Q2 2023.

Based on Senator Investment Group's 13F filing for Q2 2023, filed 11 Aug 2023.