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McAdam LLC’s Biogen BIIB Stock Holding History

McAdam LLC’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 		– Sell
-2,410
Closed -$424K – 451
2025
Q4 		$424K Buy
+2,410
New +$394K 0.02% 265
2021
Q4 		– Sell
-764
Closed -$216K – 196
2021
Q3 		$216K Sell
764
-20
-3% -$6.55K 0.02% 164
2021
Q2 		$258K Sell
784
-353
-31% -$107K 0.03% 146
2021
Q1 		$318K Buy
1,137
+196
+21% +$52.9K 0.04% 115
2020
Q4 		$252K Sell
941
-4
-0.4% -$1.03K 0.04% 137
2020
Q3 		$268K Sell
945
-34
-3% -$9.48K 0.05% 112
2020
Q2 		$262K Buy
979
+37
+4% +$11.1K 0.06% 98
2020
Q1 		$298K Sell
942
-5
-0.5% -$1.52K 0.08% 71
2019
Q4 		$281K Buy
947
+79
+9% +$21.9K 0.07% 63
2019
Q3 		$202K Sell
868
-51
-6% -$11.9K 0.06% 78
2019
Q2 		$215K Sell
919
-70
-7% -$16.2K 0.06% 69
2019
Q1 		$234K Buy
+989
New +$311K 0.08% 61
2018
Q4 		– Sell
-658
Closed -$227K – 112
2018
Q3 		$227K Buy
658
+5
+0.8% +$1.72K 0.08% 58
2018
Q2 		$190K Buy
653
+43
+7% +$12.1K 0.08% 59
2018
Q1 		$167K Buy
+610
New +$189K 0.08% 65

Other funds holding BIIB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

McAdam LLC's BIIB Position: Q1 2026 in Review

McAdam LLC sold out of Biogen (BIIB) in Q1 2026, closing a stake of 2,410 shares — an estimated $424K sold.

McAdam LLC first reported a position in BIIB in Q1 2018 and held it in 15 quarters. The position peaked at $424K in Q4 2025. 1,009 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • McAdam LLC reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
  • McAdam LLC sold 2,410 Biogen shares in Q1 2026, an estimated $424K.
  • McAdam LLC first reported a position in Biogen in Q1 2018 and held it in 15 quarters.
  • McAdam LLC's Biogen position peaked at $424K in Q4 2025.
  • 1,009 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on McAdam LLC's 13F filing for Q1 2026, filed 8 May 2026.