CEI
BIIB icon

Clark Estates Inc’s Biogen BIIB Stock Holding History

Clark Estates Inc’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
2026
Q1 		$2.8M Hold
15,300
– – 0.67% 24
2025
Q4 		$2.69M Hold
15,300
– – 0.65% 25
2025
Q3 		$2.14M Hold
15,300
– – 0.49% 52
2025
Q2 		$1.92M Buy
15,300
+3,504
+30% +$437K 0.43% 46
2025
Q1 		$1.61M Sell
11,796
-4,504
-28% -$644K 0.34% 70
2024
Q4 		$2.49M Buy
16,300
+150
+0.9% +$25.3K 0.48% 64
2024
Q3 		$3.13M Buy
+16,150
New +$3.38M 0.58% 54
2021
Q4 		– Sell
-8,100
Closed -$2.29M – 94
2021
Q3 		$2.29M Hold
8,100
– – 0.33% 89
2021
Q2 		$2.81M Sell
8,100
-11,500
-59% -$3.48M 0.37% 88
2021
Q1 		$5.48M Buy
19,600
+10,700
+120% +$2.89M 0.7% 37
2020
Q4 		$2.18M Hold
8,900
– – 0.31% 95
2020
Q3 		$2.52M Hold
8,900
– – 0.41% 78
2020
Q2 		$2.38M Sell
8,900
-4,600
-34% -$1.38M 0.42% 80
2020
Q1 		$4.27M Hold
13,500
– – 0.87% 25
2019
Q4 		$4.01M Hold
13,500
– – 0.61% 44
2019
Q3 		$3.14M Hold
13,500
– – 0.52% 57
2019
Q2 		$3.16M Hold
13,500
– – 0.5% 64
2019
Q1 		$3.19M Hold
13,500
– – 0.49% 72
2018
Q4 		$4.06M Hold
13,500
– – 0.65% 31
2018
Q3 		$4.77M Hold
13,500
– – 0.72% 28
2018
Q2 		$3.92M Buy
+13,500
New +$3.8M 0.59% 40

Other funds holding BIIB

BlackRock
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
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.47T AUM 27.86% 1-Year Est. Return