Wells Fargo
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Wells Fargo’s Biogen BIIB Stock Holding History

Wells Fargo’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
2024
Q1 		– Sell
-18,900
Closed -$4.89M – 7507
2023
Q4 		$4.89M Hold
18,900
– – ﹤0.01% 2224
2023
Q3 		$4.86M Buy
+18,900
New +$5.06M ﹤0.01% 2133
2023
Q2 		– Sell
-4,100
Closed -$1.14M – 7586
2023
Q1 		$1.14M Buy
+4,100
New +$1.13M ﹤0.01% 3285
2021
Q4 		– Sell
-7,500
Closed -$2.12M – 7221
2021
Q3 		$2.12M Sell
7,500
-8,000
-52% -$2.62M ﹤0.01% 3623
2021
Q2 		$5.37M Buy
15,500
+7,500
+94% +$2.27M ﹤0.01% 2806
2021
Q1 		$2.24M Buy
+8,000
New +$2.16M ﹤0.01% 3589
2019
Q4 		– Sell
-100
Closed -$8K – 6353
2019
Q3 		$8K Hold
100
– – ﹤0.01% 5974
2019
Q2 		$8K Hold
100
– – ﹤0.01% 5950
2019
Q1 		$8K Sell
100
-908
-90% -$286K ﹤0.01% 5664
2018
Q4 		$36K Sell
1,008
-8
-0.8% -$2.55K ﹤0.01% 5623
2018
Q3 		$14K Buy
1,016
+407
+67% +$140K ﹤0.01% 5906
2018
Q2 		$7K Buy
609
+9
+2% +$2.53K ﹤0.01% 6023
2018
Q1 		$17K Buy
+600
New +$186K ﹤0.01% 5835
2017
Q4 		– Sell
-900
Closed -$4K – 6343
2017
Q3 		$4K Buy
+900
New +$267K ﹤0.01% 6056
2017
Q1 		– Sell
-25,300
Closed -$429K – 6302
2016
Q4 		$429K Sell
25,300
-17,500
-41% -$5.19M ﹤0.01% 4306
2016
Q3 		$575K Buy
+42,800
New +$12.7M ﹤0.01% 3868
2016
Q2 		– Sell
-10,000
Closed -$364K – 6099
2016
Q1 		$364K Sell
10,000
-14,200
-59% -$3.75M ﹤0.01% 4060
2015
Q4 		$356K Buy
24,200
+10,000
+70% +$2.87M ﹤0.01% 4110
2015
Q3 		$462K Sell
14,200
-2,500
-15% -$826K ﹤0.01% 3990
2015
Q2 		$143K Buy
16,700
+4,900
+42% +$1.97M ﹤0.01% 4803
2015
Q1 		$48K Buy
11,800
+100
+0.9% +$39.4K ﹤0.01% 5025
2014
Q4 		$302K Buy
+11,700
New +$3.79M ﹤0.01% 4218

Other funds holding BIIB

BlackRock
BlackRock New York $5.72T 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 $1.56T AUM 27.86% 1-Year Est. Return

Wells Fargo's BIIB Position: Q1 2026 in Review

Wells Fargo increased its Biogen (BIIB) stake by 6.5% in Q1 2026, buying an estimated $1.44M and bringing the position to 127,134 shares worth $23.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1414.

Wells Fargo first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.02B in Q1 2015. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Wells Fargo held 127,134 shares of Biogen worth $23.3M as of Q1 2026.
  • Wells Fargo bought 7,796 Biogen shares in Q1 2026, an estimated $1.44M.
  • Biogen made up ﹤0.01% of Wells Fargo's portfolio in Q1 2026, its #1414 holding.
  • Wells Fargo first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
  • Wells Fargo's Biogen position peaked at $1.02B in Q1 2015.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Wells Fargo's 13F filing for Q1 2026, filed 11 May 2026.