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Allstate Corporation’s Biogen BIIB Stock Holding History

Allstate Corporation’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 		$3.22M Buy
17,555
+7,883
+82% +$1.45M 0.03% 346
2025
Q4 		$1.7M Buy
9,672
+4,972
+106% +$812K 0.02% 401
2025
Q3 		$658K Buy
+4,700
New +$635K 0.02% 463
2025
Q2 		– Sell
-4,589
Closed -$628K – 218
2025
Q1 		$628K Buy
4,589
+291
+7% +$41.6K 0.02% 461
2024
Q4 		$657K Buy
+4,298
New +$725K 0.02% 408
2023
Q1 		– Sell
-5,784
Closed -$1.6M – 239
2022
Q4 		$1.6M Buy
5,784
+2,639
+84% +$745K 0.05% 240
2022
Q3 		$840K Sell
3,145
-2,674
-46% -$568K 0.02% 381
2022
Q2 		$1.19M Sell
5,819
-1,749
-23% -$358K 0.04% 294
2022
Q1 		$1.59M Buy
7,568
+5,186
+218% +$1.13M 0.04% 303
2021
Q4 		$571K Sell
2,382
-396
-14% -$102K 0.01% 658
2021
Q3 		$786K Sell
2,778
-117
-4% -$38.3K 0.03% 363
2021
Q2 		$1M Buy
2,895
+36
+1% +$10.9K 0.03% 304
2021
Q1 		$800K Buy
2,859
+317
+12% +$85.5K 0.03% 377
2020
Q4 		$622K Sell
2,542
-45
-2% -$11.6K 0.02% 409
2020
Q3 		$734K Sell
2,587
-2,090
-45% -$583K 0.02% 310
2020
Q2 		$1.25M Sell
4,677
-726
-13% -$218K 0.04% 201
2020
Q1 		$1.71M Sell
5,403
-11,496
-68% -$3.49M 0.07% 136
2019
Q4 		$5.01M Buy
16,899
+1,212
+8% +$336K 0.09% 139
2019
Q3 		$3.65M Buy
15,687
+1,135
+8% +$264K 0.06% 185
2019
Q2 		$3.4M Sell
14,552
-1,266
-8% -$292K 0.06% 179
2019
Q1 		$3.74M Buy
15,818
+407
+3% +$128K 0.1% 142
2018
Q4 		$4.64M Buy
+15,411
New +$4.92M 0.15% 97
2017
Q3 		– Sell
-7,878
Closed -$2.14M – 59
2017
Q2 		$2.14M Hold
7,878
– – 0.11% 77
2017
Q1 		$2.15M Sell
7,878
-9,407
-54% -$2.66M 0.13% 118
2016
Q4 		$4.9M Buy
+17,285
New +$5.12M 0.29% 107

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

Allstate Corporation's BIIB Position: Q1 2026 in Review

Allstate Corporation increased its Biogen (BIIB) stake by 82% in Q1 2026, buying an estimated $1.45M and bringing the position to 17,555 shares worth $3.22M. The position accounts for 0.03% of the portfolio, ranked #346.

Allstate Corporation first reported a position in BIIB in Q4 2016 and has held it in 25 quarters since. The position peaked at $5.01M in Q4 2019. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Allstate Corporation held 17,555 shares of Biogen worth $3.22M as of Q1 2026.
  • Allstate Corporation bought 7,883 Biogen shares in Q1 2026, an estimated $1.45M.
  • Biogen made up 0.03% of Allstate Corporation's portfolio in Q1 2026, its #346 holding.
  • Allstate Corporation first reported a position in Biogen in Q4 2016 and has held it in 25 quarters since.
  • Allstate Corporation's Biogen position peaked at $5.01M in Q4 2019.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Allstate Corporation's 13F filing for Q1 2026, filed 11 May 2026.