Echo Street Capital Management’s Biogen BIIB Stock Holding History

Echo Street Capital 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
2023 Q3	–	Sell	-1,887	Closed	-$538K	–	466
2023 Q2	$538K	Buy	1,887 +347	+23%	+$103K	﹤0.01%	250
2023 Q1	$428K	Sell	1,540 -3,406	-69%	-$942K	﹤0.01%	296
2022 Q4	$1.37M	Buy	4,946 +2,805	+131%	+$792K	0.01%	123
2022 Q3	$572K	Buy	+2,141	New	+$455K	0.01%	244
2022 Q1	–	Sell	-6,888	Closed	-$1.65M	–	614
2021 Q4	$1.65M	Buy	6,888 +5,793	+529%	+$1.49M	0.01%	178
2021 Q3	$310K	Sell	1,095 -817	-43%	-$268K	﹤0.01%	517
2021 Q2	$662K	Sell	1,912 -658	-26%	-$199K	0.01%	288
2021 Q1	$719K	Buy	+2,570	New	+$693K	0.01%	225
2020 Q3	–	Sell	-9,827	Closed	-$2.63M	–	142
2020 Q2	$2.63M	Buy	+9,827	New	+$2.95M	0.03%	177

Other funds holding BIIB

Primecap Management Pasadena, California $127B AUM 44.11% 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 $535B AUM 26.23% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

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

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

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

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

Echo Street Capital Management's BIIB Position: Q3 2023 in Review

Echo Street Capital Management sold out of Biogen (BIIB) in Q3 2023, closing a stake of 1,887 shares — an estimated $538K sold.

Echo Street Capital Management first reported a position in BIIB in Q2 2020 and held it in 9 quarters. The position peaked at $2.63M in Q2 2020. 966 funds tracked by Wall St. Rank hold BIIB as of Q3 2023.

Echo Street Capital Management reported no remaining Biogen position as of Q3 2023 after selling out during the quarter.
Echo Street Capital Management sold 1,887 Biogen shares in Q3 2023, an estimated $538K.
Echo Street Capital Management first reported a position in Biogen in Q2 2020 and held it in 9 quarters.
Echo Street Capital Management's Biogen position peaked at $2.63M in Q2 2020.
966 funds tracked by Wall St. Rank held Biogen as of Q3 2023.

Based on Echo Street Capital Management's 13F filing for Q3 2023, filed 14 Nov 2023.