Horizon Investments’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
$2.61M Sell
14,244
-3,138
-18% -$578K 0.03% 418
2025
Q4
$3.06M Sell
17,382
-43,667
-72% -$7.13M 0.04% 360
2025
Q3
$8.55M Sell
61,049
-217
-0.4% -$29.3K 0.11% 150
2025
Q2
$7.69M Buy
61,266
+59,108
+2,739% +$7.36M 0.12% 137
2025
Q1
$295K Buy
2,158
+117
+6% +$16.7K 0.01% 468
2024
Q4
$312K Sell
2,041
-397
-16% -$67K 0.01% 448
2024
Q3
$473K Sell
2,438
-260
-10% -$54.4K 0.01% 376
2024
Q2
$625K Buy
2,698
+8
+0.3% +$1.74K 0.02% 330
2024
Q1
$580K Buy
2,690
+139
+5% +$32.6K 0.02% 338
2023
Q4
$660K Buy
2,551
+52
+2% +$12.8K 0.02% 288
2023
Q3
$642K Sell
2,499
-26
-1% -$6.95K 0.02% 235
2023
Q2
$719K Buy
2,525
+18
+0.7% +$5.36K 0.02% 226
2023
Q1
$697K Sell
2,507
-927
-27% -$256K 0.02% 229
2022
Q4
$951K Sell
3,434
-3,371
-50% -$952K 0.03% 230
2022
Q3
$1.82M Buy
6,805
+5,081
+295% +$1.08M 0.06% 121
2022
Q2
$352K Sell
1,724
-7,970
-82% -$1.63M 0.01% 345
2022
Q1
$2.04M Buy
9,694
+1,600
+20% +$348K 0.06% 145
2021
Q4
$1.94M Sell
8,094
-248
-3% -$63.8K 0.06% 146
2021
Q3
$2.36M Buy
8,342
+489
+6% +$160K 0.06% 139
2021
Q2
$2.72M Buy
7,853
+5,551
+241% +$1.68M 0.08% 121
2021
Q1
$644K Buy
+2,302
New +$621K 0.02% 261
2020
Q4
Sell
-5,942
Closed -$1.69M 114
2020
Q3
$1.69M Sell
5,942
-4,984
-46% -$1.39M 0.06% 139
2020
Q2
$2.92M Buy
10,926
+8,693
+389% +$2.61M 0.07% 124
2020
Q1
$706K Sell
2,233
-1,426
-39% -$433K 0.03% 149
2019
Q4
$1.09M Buy
3,659
+2,388
+188% +$663K 0.05% 156
2019
Q3
$296K Sell
1,271
-99
-7% -$23.1K 0.01% 249
2019
Q2
$320K Buy
1,370
+276
+25% +$63.7K 0.01% 362
2019
Q1
$259K Buy
+1,094
New +$344K 0.01% 303
2016
Q4
Sell
-1,610
Closed -$504K 161
2016
Q3
$504K Buy
+1,610
New +$477K 0.03% 78
2016
Q2
Sell
-1,933
Closed -$503K 107
2016
Q1
$503K Buy
+1,933
New +$511K 0.04% 69

Other funds holding BIIB

Horizon Investments's BIIB Position: Q1 2026 in Review

Horizon Investments reduced its Biogen (BIIB) stake by 18% in Q1 2026, selling an estimated $578K and leaving 14,244 shares worth $2.61M. The position accounts for 0.03% of the portfolio, ranked #418.

Horizon Investments first reported a position in BIIB in Q1 2016 and has held it in 30 quarters since. The position peaked at $8.55M in Q3 2025. 1,008 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Horizon Investments held 14,244 shares of Biogen worth $2.61M as of Q1 2026.
  • Horizon Investments sold 3,138 Biogen shares in Q1 2026, an estimated $578K.
  • Biogen made up 0.03% of Horizon Investments's portfolio in Q1 2026, its #418 holding.
  • Horizon Investments first reported a position in Biogen in Q1 2016 and has held it in 30 quarters since.
  • Horizon Investments's Biogen position peaked at $8.55M in Q3 2025.
  • 1,008 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Horizon Investments's 13F filing for Q1 2026, filed 15 May 2026.