Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-384,265
Closed -$67.6M 3812
2025
Q4
$67.6M Buy
384,265
+379,819
+8,543% +$62.1M 0.21% 59
2025
Q3
$622K Sell
4,446
-33,830
-88% -$4.57M ﹤0.01% 1764
2025
Q2
$4.81M Sell
38,276
-140,066
-79% -$17.5M 0.02% 550
2025
Q1
$24.4M Buy
+178,342
New +$25.5M 0.15% 92
2024
Q4
Sell
-89,217
Closed -$17.3M 2447
2024
Q3
$17.3M Buy
+89,217
New +$18.7M 0.09% 149
2023
Q3
Sell
-3,896
Closed -$1.11M 2413
2023
Q2
$1.11M Buy
+3,896
New +$1.16M 0.01% 890
2023
Q1
Sell
-133,064
Closed -$36.8M 2508
2022
Q4
$36.8M Buy
133,064
+97,102
+270% +$27.4M 0.52% 21
2022
Q3
$9.6M Buy
35,962
+33,545
+1,388% +$7.12M 0.1% 148
2022
Q2
$492K Sell
2,417
-4,250
-64% -$869K 0.01% 1613
2022
Q1
$1.4M Buy
6,667
+3,690
+124% +$802K 0.01% 821
2021
Q4
$714K Sell
2,977
-2,531
-46% -$651K ﹤0.01% 1487
2021
Q3
$1.56M Sell
5,508
-7,531
-58% -$2.47M 0.01% 898
2021
Q2
$4.51M Buy
+13,039
New +$3.95M 0.04% 332
2021
Q1
Sell
-28,316
Closed -$6.93M 2695
2020
Q4
$6.93M Buy
+28,316
New +$7.3M 0.14% 118
2020
Q3
Sell
-127,380
Closed -$34.1M 1898
2020
Q2
$34.1M Buy
+127,380
New +$38.3M 1.02% 12
2020
Q1
Sell
-1,309
Closed -$388K 795
2019
Q4
$388K Sell
1,309
-33,929
-96% -$9.41M 0.02% 635
2019
Q3
$8.2M Sell
35,238
-10,148
-22% -$2.36M 0.39% 36
2019
Q2
$10.6M Buy
+45,386
New +$10.5M 0.67% 29
2015
Q4
Sell
-2,719
Closed -$793K 67
2015
Q3
$793K Buy
+2,719
New +$898K 0.68% 25
2015
Q2
Sell
-631
Closed -$266K 164
2015
Q1
$266K Buy
+631
New +$249K 0.34% 39

Other funds holding BIIB

HRT Financial's BIIB Position: Q1 2026 in Review

HRT Financial sold out of Biogen (BIIB) in Q1 2026, closing a stake of 384,265 shares — an estimated $67.6M sold.

HRT Financial first reported a position in BIIB in Q1 2015 and held it in 20 quarters. The position peaked at $67.6M in Q4 2025. 1,011 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • HRT Financial reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
  • HRT Financial sold 384,265 Biogen shares in Q1 2026, an estimated $67.6M.
  • HRT Financial first reported a position in Biogen in Q1 2015 and held it in 20 quarters.
  • HRT Financial's Biogen position peaked at $67.6M in Q4 2025.
  • 1,011 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on HRT Financial's 13F filing for Q1 2026, filed 14 May 2026.