Walleye Trading’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 | $1.15M | Sell |
6,300
-12,300
| -66% | -$2.27M | ﹤0.01% | 2059 |
|
|
2025
Q4 | $3.27M | Buy |
18,600
+15,400
| +481% | +$2.52M | ﹤0.01% | 1564 |
|
|
2025
Q3 | $448K | Sell |
3,200
-8,400
| -72% | -$1.14M | ﹤0.01% | 2809 |
|
|
2025
Q2 | $1.46M | Sell |
11,600
-29,600
| -72% | -$3.69M | ﹤0.01% | 1937 |
|
|
2025
Q1 | $5.64M | Buy |
41,200
+30,600
| +289% | +$4.37M | 0.01% | 1012 |
|
|
2024
Q4 | $1.62M | Sell |
10,600
-7,700
| -42% | -$1.3M | ﹤0.01% | 1822 |
|
|
2024
Q3 | $3.55M | Sell |
18,300
-2,400
| -12% | -$502K | 0.01% | 1322 |
|
|
2024
Q2 | $4.8M | Buy |
20,700
+16,500
| +393% | +$3.59M | 0.01% | 1074 |
|
|
2024
Q1 | $906K | Sell |
4,200
-25,500
| -86% | -$5.97M | ﹤0.01% | 2332 |
|
|
2023
Q4 | $7.69M | Sell |
29,700
-5,000
| -14% | -$1.23M | 0.02% | 934 |
|
|
2023
Q3 | $8.92M | Sell |
34,700
-2,500
| -7% | -$669K | 0.02% | 742 |
|
|
2023
Q2 | $10.6M | Sell |
37,200
-28,500
| -43% | -$8.48M | 0.03% | 565 |
|
|
2023
Q1 | $18.3M | Sell |
65,700
-80,200
| -55% | -$22.2M | 0.04% | 417 |
|
|
2022
Q4 | $40.4M | Buy |
145,900
+3,600
| +3% | +$1.02M | 0.12% | 170 |
|
|
2022
Q3 | $38M | Buy |
142,300
+6,500
| +5% | +$1.38M | 0.12% | 152 |
|
|
2022
Q2 | $27.7M | Buy |
135,800
+56,900
| +72% | +$11.6M | 0.09% | 219 |
|
|
2022
Q1 | $16.6M | Buy |
78,900
+21,600
| +38% | +$4.7M | 0.05% | 419 |
|
|
2021
Q4 | $13.7M | Buy |
57,300
+30,800
| +116% | +$7.92M | 0.05% | 439 |
|
|
2021
Q3 | $7.5M | Sell |
26,500
-27,400
| -51% | -$8.98M | 0.03% | 699 |
|
|
2021
Q2 | $18.7M | Buy |
53,900
+19,500
| +57% | +$5.91M | 0.07% | 248 |
|
|
2021
Q1 | $9.62M | Buy |
34,400
+12,000
| +54% | +$3.24M | 0.04% | 338 |
|
|
2020
Q4 | $5.49M | Sell |
22,400
-44,200
| -66% | -$11.4M | 0.02% | 669 |
|
|
2020
Q3 | $18.9M | Buy |
66,600
+35,400
| +113% | +$9.87M | 0.1% | 137 |
|
|
2020
Q2 | $8.35M | Buy |
31,200
+6,900
| +28% | +$2.07M | 0.05% | 334 |
|
|
2020
Q1 | $7.69M | Sell |
24,300
-13,200
| -35% | -$4.01M | 0.06% | 252 |
|
|
2019
Q4 | $11.1M | Buy |
37,500
+21,200
| +130% | +$5.88M | 0.08% | 255 |
|
|
2019
Q3 | $3.79M | Sell |
16,300
-7,300
| -31% | -$1.7M | 0.03% | 617 |
|
|
2019
Q2 | $5.52M | Buy |
23,600
+19,500
| +476% | +$4.5M | 0.05% | 398 |
|
|
2019
Q1 | $969K | Sell |
4,100
-4,300
| -51% | -$1.35M | 0.01% | 1695 |
|
|
2018
Q4 | $2.53M | Sell |
8,400
-13,100
| -61% | -$4.18M | 0.02% | 896 |
|
|
2018
Q3 | $7.6M | Sell |
21,500
-5,800
| -21% | -$2M | 0.04% | 441 |
|
|
2018
Q2 | $7.92M | Sell |
27,300
-5,700
| -17% | -$1.6M | 0.04% | 380 |
|
|
2018
Q1 | $9.04M | Sell |
33,000
-11,500
| -26% | -$3.57M | 0.05% | 288 |
|
|
2017
Q4 | $14.2K | Buy |
44,500
+15,700
| +55% | +$5.04M | 0.07% | 207 |
|
|
2017
Q3 | $9.02K | Sell |
28,800
-25,500
| -47% | -$7.55M | 0.04% | 364 |
|
|
2017
Q2 | $14.7K | Buy |
54,300
+33,700
| +164% | +$8.91M | 0.09% | 174 |
|
|
2017
Q1 | $5.63K | Sell |
20,600
-1,200
| -6% | -$339K | 0.04% | 436 |
|
|
2016
Q4 | $6.18M | Sell |
21,800
-1,900
| -8% | -$563K | 0.04% | 347 |
|
|
2016
Q3 | $7.42M | Sell |
23,700
-15,100
| -39% | -$4.47M | 0.05% | 278 |
|
|
2016
Q2 | $9.38M | Buy |
38,800
+20,000
| +106% | +$5.27M | 0.06% | 222 |
|
|
2016
Q1 | $4.89M | Sell |
18,800
-47,600
| -72% | -$12.6M | 0.04% | 398 |
|
|
2015
Q4 | $20.3M | Buy |
66,400
+21,200
| +47% | +$6.09M | 0.2% | 79 |
|
|
2015
Q3 | $13.2M | Sell |
45,200
-100
| -0.2% | -$33K | 0.12% | 120 |
|
|
2015
Q2 | $18.3M | Sell |
45,300
-5,700
| -11% | -$2.29M | 0.18% | 75 |
|
|
2015
Q1 | $21.5M | Buy |
51,000
+48,900
| +2,329% | +$19.3M | 0.22% | 55 |
|
|
2014
Q4 | $713K | Sell |
2,100
-500
| -19% | -$162K | 0.01% | 1282 |
|
|
2014
Q3 | $858K | Sell |
2,600
-4,400
| -63% | -$1.45M | 0.01% | 927 |
|
|
2014
Q2 | $2.21K | Buy |
7,000
+4,000
| +133% | +$1.2M | 0.03% | 378 |
|
|
2014
Q1 | $921 | Sell |
3,000
-4,600
| -61% | -$1.46M | 0.01% | 906 |
|
|
2013
Q4 | $2.13M | Buy |
7,600
+200
| +3% | +$51.7K | 0.02% | 647 |
|
|
2013
Q3 | $1.78M | Sell |
7,400
-7,800
| -51% | -$1.75M | 0.02% | 595 |
|
|
2013
Q2 | $3.27M | Buy |
+15,200
| New | +$3.25M | 0.03% | 412 |
|
Other funds holding BIIB
VCM
VPM
Walleye Trading's BIIB Position: Q1 2026 in Review
Walleye Trading increased its Biogen (BIIB) stake by 4.2% in Q1 2026, buying an estimated $739K and bringing the position to 99,532 shares worth $18.2M. The position accounts for 0.03% of the portfolio, ranked #543.
Walleye Trading first reported a position in BIIB in Q4 2014 and has held it in 39 quarters since. 1,003 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Walleye Trading held 99,532 shares of Biogen worth $18.2M as of Q1 2026.
- Walleye Trading bought 4,010 Biogen shares in Q1 2026, an estimated $739K.
- Biogen made up 0.03% of Walleye Trading's portfolio in Q1 2026, its #543 holding.
- Walleye Trading first reported a position in Biogen in Q4 2014 and has held it in 39 quarters since.
- 1,003 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.