Gabelli Funds’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $3.05M | Hold |
14,100
| – | – | 0.02% | 657 |
|
|
2026
Q1 | $2.58M | Sell |
14,100
-1,300
| -8% | -$240K | 0.02% | 677 |
|
|
2025
Q4 | $2.71M | Buy |
15,400
+1,300
| +9% | +$212K | 0.02% | 661 |
|
|
2025
Q3 | $1.98M | Hold |
14,100
| – | – | 0.01% | 751 |
|
|
2025
Q2 | $1.77M | Hold |
14,100
| – | – | 0.01% | 768 |
|
|
2025
Q1 | $1.93M | Hold |
14,100
| – | – | 0.01% | 656 |
|
|
2024
Q4 | $2.16M | Hold |
14,100
| – | – | 0.02% | 639 |
|
|
2024
Q3 | $2.73M | Sell |
14,100
-300
| -2% | -$62.8K | 0.02% | 595 |
|
|
2024
Q2 | $3.34M | Sell |
14,400
-300
| -2% | -$65.2K | 0.03% | 540 |
|
|
2024
Q1 | $3.17M | Hold |
14,700
| – | – | 0.02% | 555 |
|
|
2023
Q4 | $3.8M | Sell |
14,700
-70
| -0.5% | -$17.2K | 0.03% | 510 |
|
|
2023
Q3 | $3.8M | Buy |
14,770
+220
| +2% | +$58.8K | 0.03% | 496 |
|
|
2023
Q2 | $4.14M | Sell |
14,550
-200
| -1% | -$59.5K | 0.03% | 502 |
|
|
2023
Q1 | $4.1M | Sell |
14,750
-175
| -1% | -$48.4K | 0.03% | 499 |
|
|
2022
Q4 | $4.13M | Buy |
14,925
+25
| +0.2% | +$7.06K | 0.03% | 493 |
|
|
2022
Q3 | $3.98M | Sell |
14,900
-400
| -3% | -$85K | 0.03% | 496 |
|
|
2022
Q2 | $3.12M | Buy |
15,300
+225
| +1% | +$46K | 0.02% | 569 |
|
|
2022
Q1 | $3.17M | Hold |
15,075
| – | – | 0.02% | 610 |
|
|
2021
Q4 | $3.62M | Sell |
15,075
-415
| -3% | -$107K | 0.02% | 591 |
|
|
2021
Q3 | $4.38M | Buy |
15,490
+135
| +0.9% | +$44.2K | 0.03% | 542 |
|
|
2021
Q2 | $5.32M | Buy |
15,355
+580
| +4% | +$176K | 0.03% | 501 |
|
|
2021
Q1 | $4.13M | Buy |
14,775
+175
| +1% | +$47.2K | 0.03% | 553 |
|
|
2020
Q4 | $3.58M | Sell |
14,600
-400
| -3% | -$103K | 0.03% | 567 |
|
|
2020
Q3 | $4.25M | Sell |
15,000
-200
| -1% | -$55.8K | 0.03% | 482 |
|
|
2020
Q2 | $4.07M | Sell |
15,200
-150
| -1% | -$45.1K | 0.03% | 485 |
|
|
2020
Q1 | $4.86M | Sell |
15,350
-150
| -1% | -$45.5K | 0.04% | 430 |
|
|
2019
Q4 | $4.6M | Sell |
15,500
-200
| -1% | -$55.5K | 0.03% | 517 |
|
|
2019
Q3 | $3.65M | Sell |
15,700
-300
| -2% | -$69.9K | 0.02% | 592 |
|
|
2019
Q2 | $3.74M | Hold |
16,000
| – | – | 0.02% | 611 |
|
|
2019
Q1 | $3.78M | Sell |
16,000
-2,700
| -14% | -$850K | 0.02% | 615 |
|
|
2018
Q4 | $5.63M | Sell |
18,700
-900
| -5% | -$287K | 0.04% | 476 |
|
|
2018
Q3 | $6.92M | Sell |
19,600
-600
| -3% | -$207K | 0.04% | 482 |
|
|
2018
Q2 | $5.86M | Hold |
20,200
| – | – | 0.03% | 527 |
|
|
2018
Q1 | $5.53M | Sell |
20,200
-12,800
| -39% | -$3.97M | 0.03% | 528 |
|
|
2017
Q4 | $10.5M | Hold |
33,000
| – | – | 0.06% | 376 |
|
|
2017
Q3 | $10.3M | Hold |
33,000
| – | – | 0.06% | 379 |
|
|
2017
Q2 | $8.96M | Hold |
33,000
| – | – | 0.05% | 411 |
|
|
2017
Q1 | $9.02M | Buy |
33,000
+600
| +2% | +$170K | 0.05% | 414 |
|
|
2016
Q4 | $9.19M | Sell |
32,400
-1,000
| -3% | -$296K | 0.05% | 391 |
|
|
2016
Q3 | $10.5M | Hold |
33,400
| – | – | 0.06% | 373 |
|
|
2016
Q2 | $8.08M | Hold |
33,400
| – | – | 0.05% | 438 |
|
|
2016
Q1 | $8.7M | Sell |
33,400
-4,815
| -13% | -$1.27M | 0.05% | 415 |
|
|
2015
Q4 | $11.7M | Sell |
38,215
-7,785
| -17% | -$2.24M | 0.07% | 353 |
|
|
2015
Q3 | $13.4M | Sell |
46,000
-2,000
| -4% | -$660K | 0.08% | 322 |
|
|
2015
Q2 | $19.4M | Sell |
48,000
-1,000
| -2% | -$401K | 0.1% | 278 |
|
|
2015
Q1 | $20.7M | Sell |
49,000
-5,300
| -10% | -$2.09M | 0.11% | 274 |
|
|
2014
Q4 | $18.4M | Sell |
54,300
-5,100
| -9% | -$1.65M | 0.09% | 302 |
|
|
2014
Q3 | $19.6M | Sell |
59,400
-9,100
| -13% | -$3M | 0.1% | 283 |
|
|
2014
Q2 | $21.6M | Buy |
68,500
+600
| +0.9% | +$181K | 0.11% | 270 |
|
|
2014
Q1 | $20.8M | Sell |
67,900
-1,500
| -2% | -$476K | 0.11% | 269 |
|
|
2013
Q4 | $19.4M | Sell |
69,400
-3,500
| -5% | -$905K | 0.1% | 288 |
|
|
2013
Q3 | $17.6M | Sell |
72,900
-6,100
| -8% | -$1.37M | 0.1% | 292 |
|
|
2013
Q2 | $17M | Buy |
+79,000
| New | +$16.9M | 0.1% | 288 |
|
Other funds holding BIIB
Gabelli Funds's BIIB Position: Q2 2026 in Review
Gabelli Funds held its Biogen (BIIB) position steady in Q2 2026 at 14,100 shares worth $3.05M. The position accounts for 0.02% of the portfolio, ranked #657.
Gabelli Funds first reported a position in BIIB in Q2 2013 and has held it in 53 quarters since. The position peaked at $21.6M in Q2 2014. 1,036 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- Gabelli Funds held 14,100 shares of Biogen worth $3.05M as of Q2 2026.
- Gabelli Funds left its Biogen share count unchanged in Q2 2026.
- Biogen made up 0.02% of Gabelli Funds's portfolio in Q2 2026, its #657 holding.
- Gabelli Funds first reported a position in Biogen in Q2 2013 and has held it in 53 quarters since.
- Gabelli Funds's Biogen position peaked at $21.6M in Q2 2014.
- 1,036 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on Gabelli Funds's 13F filing for Q2 2026, filed 12 Aug 2026.