First Trust 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
$124M Buy
673,958
+108,111
+19% +$19.9M 0.09% 284
2025
Q4
$99.6M Sell
565,847
-274,710
-33% -$44.9M 0.07% 332
2025
Q3
$118M Sell
840,557
-33,266
-4% -$4.5M 0.09% 274
2025
Q2
$110M Buy
873,823
+212,403
+32% +$26.5M 0.09% 276
2025
Q1
$90.5M Buy
661,420
+150,140
+29% +$21.5M 0.08% 304
2024
Q4
$78.2M Buy
511,280
+152,789
+43% +$25.8M 0.07% 362
2024
Q3
$69.5M Sell
358,491
-31,460
-8% -$6.58M 0.07% 359
2024
Q2
$90.4M Buy
389,951
+55,655
+17% +$12.1M 0.09% 238
2024
Q1
$72.1M Sell
334,296
-643,012
-66% -$151M 0.07% 328
2023
Q4
$253M Buy
977,308
+571,795
+141% +$140M 0.28% 84
2023
Q3
$104M Sell
405,513
-6,186
-2% -$1.65M 0.12% 204
2023
Q2
$117M Buy
411,699
+26,107
+7% +$7.77M 0.13% 188
2023
Q1
$107M Buy
385,592
+110,309
+40% +$30.5M 0.12% 207
2022
Q4
$76.2M Sell
275,283
-113,693
-29% -$32.1M 0.09% 333
2022
Q3
$104M Sell
388,976
-50,425
-11% -$10.7M 0.13% 189
2022
Q2
$89.6M Buy
439,401
+41,880
+11% +$8.56M 0.11% 251
2022
Q1
$83.7M Buy
397,521
+52,172
+15% +$11.3M 0.09% 313
2021
Q4
$82.9M Buy
345,349
+16,541
+5% +$4.25M 0.08% 306
2021
Q3
$93M Sell
328,808
-103,298
-24% -$33.9M 0.1% 253
2021
Q2
$150M Buy
432,106
+10,447
+2% +$3.16M 0.16% 154
2021
Q1
$118M Buy
421,659
+8,441
+2% +$2.28M 0.14% 180
2020
Q4
$101M Sell
413,218
-20,223
-5% -$5.22M 0.13% 188
2020
Q3
$123M Buy
433,441
+35,775
+9% +$9.98M 0.2% 123
2020
Q2
$106M Sell
397,666
-82,922
-17% -$24.9M 0.18% 128
2020
Q1
$152M Sell
480,588
-61,835
-11% -$18.8M 0.34% 43
2019
Q4
$161M Buy
542,423
+118,511
+28% +$32.9M 0.27% 59
2019
Q3
$98.7M Sell
423,912
-154,494
-27% -$36M 0.19% 115
2019
Q2
$135M Buy
578,406
+171,855
+42% +$39.7M 0.26% 65
2019
Q1
$96.1M Buy
406,551
+24,735
+6% +$7.79M 0.19% 129
2018
Q4
$115M Buy
381,816
+40,357
+12% +$12.9M 0.27% 59
2018
Q3
$121M Buy
341,459
+85,505
+33% +$29.4M 0.22% 85
2018
Q2
$74.3M Buy
255,954
+20,608
+9% +$5.79M 0.15% 134
2018
Q1
$64.4M Buy
235,346
+26,001
+12% +$8.07M 0.15% 132
2017
Q4
$66.7M Sell
209,345
-12,815
-6% -$4.11M 0.16% 122
2017
Q3
$69.6M Buy
222,160
+75,195
+51% +$22.3M 0.18% 118
2017
Q2
$39.9M Sell
146,965
-13,096
-8% -$3.46M 0.11% 220
2017
Q1
$43.8M Sell
160,061
-39,000
-20% -$11M 0.12% 173
2016
Q4
$56.5M Buy
199,061
+72,833
+58% +$21.6M 0.17% 114
2016
Q3
$39.5M Sell
126,228
-7,888
-6% -$2.34M 0.12% 189
2016
Q2
$32.4M Sell
134,116
-3,029
-2% -$798K 0.1% 230
2016
Q1
$35.7M Sell
137,145
-271,686
-66% -$71.8M 0.11% 205
2015
Q4
$125M Sell
408,831
-49,469
-11% -$14.2M 0.33% 53
2015
Q3
$134M Sell
458,300
-50,433
-10% -$16.7M 0.39% 32
2015
Q2
$205M Buy
508,733
+166,858
+49% +$67M 0.53% 16
2015
Q1
$144M Sell
341,875
-41,881
-11% -$16.5M 0.42% 31
2014
Q4
$130M Buy
383,756
+19,583
+5% +$6.34M 0.44% 17
2014
Q3
$120M Buy
364,173
+10,672
+3% +$3.52M 0.47% 13
2014
Q2
$111M Buy
353,501
+2,622
+0.7% +$789K 0.46% 11
2014
Q1
$107M Buy
350,879
+83,087
+31% +$26.4M 0.47% 14
2013
Q4
$74.9M Sell
267,792
-23,575
-8% -$6.1M 0.36% 25
2013
Q3
$70.2M Buy
291,367
+50,000
+21% +$11.2M 0.38% 29
2013
Q2
$51.9M Buy
+241,367
New +$51.6M 0.34% 34

Other funds holding BIIB

First Trust Advisors's BIIB Position: Q1 2026 in Review

First Trust Advisors increased its Biogen (BIIB) stake by 19% in Q1 2026, buying an estimated $19.9M and bringing the position to 673,958 shares worth $124M. The position accounts for 0.09% of the portfolio, ranked #284.

First Trust Advisors first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $253M in Q4 2023. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • First Trust Advisors held 673,958 shares of Biogen worth $124M as of Q1 2026.
  • First Trust Advisors bought 108,111 Biogen shares in Q1 2026, an estimated $19.9M.
  • Biogen made up 0.09% of First Trust Advisors's portfolio in Q1 2026, its #284 holding.
  • First Trust Advisors first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
  • First Trust Advisors's Biogen position peaked at $253M in Q4 2023.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on First Trust Advisors's 13F filing for Q1 2026, filed 13 May 2026.