Northern Trust’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$265M Buy
1,446,579
+453
+0% +$83.5K 0.04% 407
2025
Q4
$255M Sell
1,446,126
-53,206
-4% -$8.69M 0.03% 413
2025
Q3
$210M Sell
1,499,332
-37,648
-2% -$5.09M 0.03% 478
2025
Q2
$193M Buy
1,536,980
+35,893
+2% +$4.47M 0.03% 496
2025
Q1
$205M Sell
1,501,087
-49,043
-3% -$7.01M 0.03% 463
2024
Q4
$237M Buy
1,550,130
+196,995
+15% +$33.2M 0.03% 436
2024
Q3
$262M Sell
1,353,135
-72,786
-5% -$15.2M 0.04% 368
2024
Q2
$331M Buy
1,425,921
+37,535
+3% +$8.16M 0.06% 298
2024
Q1
$299M Sell
1,388,386
-106,577
-7% -$25M 0.05% 327
2023
Q4
$387M Sell
1,494,963
-148,072
-9% -$36.4M 0.07% 260
2023
Q3
$422M Buy
1,643,035
+45,437
+3% +$12.2M 0.08% 222
2023
Q2
$455M Sell
1,597,598
-73,691
-4% -$21.9M 0.09% 210
2023
Q1
$465M Sell
1,671,289
-380
-0% -$105K 0.09% 214
2022
Q4
$463M Sell
1,671,669
-13,352
-0.8% -$3.77M 0.1% 210
2022
Q3
$450M Sell
1,685,021
-24,556
-1% -$5.22M 0.1% 185
2022
Q2
$349M Buy
1,709,577
+24,050
+1% +$4.92M 0.07% 254
2022
Q1
$355M Sell
1,685,527
-6,595
-0.4% -$1.43M 0.06% 295
2021
Q4
$406M Sell
1,692,122
-66,768
-4% -$17.2M 0.07% 281
2021
Q3
$498M Sell
1,758,890
-308,649
-15% -$101M 0.09% 206
2021
Q2
$716M Sell
2,067,539
-52,969
-2% -$16M 0.13% 145
2021
Q1
$593M Sell
2,120,508
-80,450
-4% -$21.7M 0.11% 165
2020
Q4
$539M Sell
2,200,958
-182,232
-8% -$47M 0.11% 170
2020
Q3
$676M Sell
2,383,190
-54,446
-2% -$15.2M 0.15% 132
2020
Q2
$652M Sell
2,437,636
-33,166
-1% -$9.97M 0.15% 128
2020
Q1
$782M Sell
2,470,802
-20,459
-0.8% -$6.21M 0.22% 86
2019
Q4
$739M Sell
2,491,261
-301,394
-11% -$83.6M 0.17% 123
2019
Q3
$650M Sell
2,792,655
-90,235
-3% -$21M 0.16% 130
2019
Q2
$674M Sell
2,882,890
-16,277
-0.6% -$3.76M 0.16% 126
2019
Q1
$685M Sell
2,899,167
-8,139
-0.3% -$2.56M 0.17% 117
2018
Q4
$875M Buy
2,907,306
+133,137
+5% +$42.5M 0.25% 84
2018
Q3
$980M Sell
2,774,169
-118,390
-4% -$40.8M 0.24% 83
2018
Q2
$840M Buy
2,892,559
+19,730
+0.7% +$5.55M 0.21% 91
2018
Q1
$787M Sell
2,872,829
-106,511
-4% -$33.1M 0.2% 98
2017
Q4
$949M Sell
2,979,340
-49,407
-2% -$15.9M 0.24% 82
2017
Q3
$948M Buy
3,028,747
+11,611
+0.4% +$3.44M 0.25% 75
2017
Q2
$819M Buy
3,017,136
+223,371
+8% +$59.1M 0.23% 88
2017
Q1
$764M Sell
2,793,765
-70
-0% -$19.8K 0.22% 89
2016
Q4
$792M Sell
2,793,835
-184,644
-6% -$54.7M 0.24% 76
2016
Q3
$932M Buy
2,978,479
+12,483
+0.4% +$3.7M 0.29% 66
2016
Q2
$717M Sell
2,965,996
-36,996
-1% -$9.75M 0.23% 85
2016
Q1
$788M Sell
3,002,992
-22,269
-0.7% -$5.88M 0.26% 70
2015
Q4
$927M Sell
3,025,261
-143,733
-5% -$41.3M 0.31% 67
2015
Q3
$925M Buy
3,168,994
+69,554
+2% +$23M 0.31% 68
2015
Q2
$1.25B Sell
3,099,440
-21,411
-0.7% -$8.59M 0.38% 55
2015
Q1
$1.32B Sell
3,120,851
-24,405
-0.8% -$9.62M 0.4% 52
2014
Q4
$1.07B Sell
3,145,256
-78,567
-2% -$25.4M 0.32% 60
2014
Q3
$1.07B Buy
3,223,823
+75,201
+2% +$24.8M 0.33% 55
2014
Q2
$993M Sell
3,148,622
-157,094
-5% -$47.3M 0.31% 58
2014
Q1
$1.01B Buy
3,305,716
+103,600
+3% +$32.9M 0.32% 57
2013
Q4
$895M Sell
3,202,116
-13,226
-0.4% -$3.42M 0.29% 70
2013
Q3
$774M Sell
3,215,342
-130,336
-4% -$29.2M 0.27% 76
2013
Q2
$720M Buy
+3,345,678
New +$715M 0.26% 79

Other funds holding BIIB

Northern Trust's BIIB Position: Q1 2026 in Review

Northern Trust increased its Biogen (BIIB) stake by 0.03% in Q1 2026, buying an estimated $83.5K and bringing the position to 1,446,579 shares worth $265M. The position accounts for 0.04% of the portfolio, ranked #407.

Northern Trust first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $1.32B in Q1 2015. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Northern Trust held 1,446,579 shares of Biogen worth $265M as of Q1 2026.
  • Northern Trust bought 453 Biogen shares in Q1 2026, an estimated $83.5K.
  • Biogen made up 0.04% of Northern Trust's portfolio in Q1 2026, its #407 holding.
  • Northern Trust first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
  • Northern Trust's Biogen position peaked at $1.32B in Q1 2015.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.