Pacer Advisors’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
$121M Sell
660,408
-485,482
-42% -$89.5M 0.34% 67
2025
Q4
$202M Sell
1,145,890
-305,359
-21% -$49.9M 0.52% 49
2025
Q3
$203M Buy
1,451,249
+131,258
+10% +$17.7M 0.51% 49
2025
Q2
$166M Sell
1,319,991
-32,569
-2% -$4.06M 0.41% 56
2025
Q1
$185M Sell
1,352,560
-1,314,971
-49% -$188M 0.43% 58
2024
Q4
$408M Buy
2,667,531
+2,648,024
+13,575% +$447M 0.88% 25
2024
Q3
$3.78M Buy
19,507
+441
+2% +$92.3K 0.01% 737
2024
Q2
$4.42M Buy
19,066
+2,149
+13% +$467K 0.01% 618
2024
Q1
$3.65M Sell
16,917
-12,012
-42% -$2.81M 0.01% 672
2023
Q4
$7.49M Buy
28,929
+12,343
+74% +$3.03M 0.02% 473
2023
Q3
$4.26M Buy
16,586
+1,806
+12% +$483K 0.02% 488
2023
Q2
$4.21M Sell
14,780
-2,180
-13% -$649K 0.02% 554
2023
Q1
$4.72M Buy
16,960
+12,157
+253% +$3.36M 0.02% 552
2022
Q4
$1.33M Sell
4,803
-342,262
-99% -$96.7M 0.01% 698
2022
Q3
$92.7M Sell
347,065
-140,561
-29% -$29.9M 0.65% 41
2022
Q2
$99.4M Buy
487,626
+163,478
+50% +$33.4M 0.74% 32
2022
Q1
$68.3M Buy
324,148
+311,731
+2,511% +$67.8M 0.56% 42
2021
Q4
$2.98M Sell
12,417
-3,235
-21% -$832K 0.03% 653
2021
Q3
$4.43M Sell
15,652
-39,494
-72% -$12.9M 0.06% 467
2021
Q2
$19.1M Buy
55,146
+18,151
+49% +$5.5M 0.27% 52
2021
Q1
$10.3M Buy
36,995
+1,160
+3% +$313K 0.18% 78
2020
Q4
$8.78M Sell
35,835
-4,560
-11% -$1.18M 0.16% 91
2020
Q3
$11.5M Sell
40,395
-2,053
-5% -$573K 0.24% 73
2020
Q2
$11.4M Buy
42,448
+15,024
+55% +$4.52M 0.23% 77
2020
Q1
$9.39M Buy
27,424
+13,210
+93% +$4.01M 0.19% 49
2019
Q4
$4.22M Sell
14,214
-40,427
-74% -$11.2M 0.19% 86
2019
Q3
$12.7M Buy
54,641
+880
+2% +$205K 0.29% 62
2019
Q2
$12.6M Buy
53,761
+10,251
+24% +$2.37M 0.31% 55
2019
Q1
$10.3M Buy
43,510
+32,680
+302% +$10.3M 0.29% 62
2018
Q4
$3.26M Sell
10,830
-17,519
-62% -$5.59M 0.11% 33
2018
Q3
$10M Buy
28,349
+8,950
+46% +$3.08M 0.38% 43
2018
Q2
$5.63M Buy
19,399
+5,729
+42% +$1.61M 0.25% 55
2018
Q1
$3.74M Buy
13,670
+2,023
+17% +$628K 0.21% 76
2017
Q4
$3.71M Buy
11,647
+3,662
+46% +$1.17M 0.26% 61
2017
Q3
$2.5M Buy
7,985
+957
+14% +$283K 0.22% 67
2017
Q2
$1.91M Buy
7,028
+667
+10% +$176K 0.19% 73
2017
Q1
$1.74M Buy
6,361
+183
+3% +$51.7K 0.21% 60
2016
Q4
$1.75M Sell
6,178
-59
-0.9% -$17.5K 0.25% 58
2016
Q3
$1.95M Sell
6,237
-150
-2% -$44.4K 0.3% 52
2016
Q2
$1.54M Buy
6,387
+191
+3% +$50.3K 0.24% 60
2016
Q1
$1.61M Sell
6,196
-5
-0.1% -$1.32K 0.37% 56
2015
Q4
$1.9M Buy
+6,201
New +$1.78M 0.45% 50
2013
Q4
$204K Buy
+600
New +$155K 0.05% 477

Other funds holding BIIB

Pacer Advisors's BIIB Position: Q1 2026 in Review

Pacer Advisors reduced its Biogen (BIIB) stake by 42% in Q1 2026, selling an estimated $89.5M and leaving 660,408 shares worth $121M. The position accounts for 0.34% of the portfolio, ranked #67.

Pacer Advisors first reported a position in BIIB in Q4 2013 and has held it in 43 quarters since. The position peaked at $408M in Q4 2024. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Pacer Advisors held 660,408 shares of Biogen worth $121M as of Q1 2026.
  • Pacer Advisors sold 485,482 Biogen shares in Q1 2026, an estimated $89.5M.
  • Biogen made up 0.34% of Pacer Advisors's portfolio in Q1 2026, its #67 holding.
  • Pacer Advisors first reported a position in Biogen in Q4 2013 and has held it in 43 quarters since.
  • Pacer Advisors's Biogen position peaked at $408M in Q4 2024.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Pacer Advisors's 13F filing for Q1 2026, filed 6 May 2026.