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 | $2.11M | Sell |
11,500
-23,000
| -67% | -$4.24M | ﹤0.01% | 1675 |
|
|
2025
Q4 | $6.07M | Buy |
34,500
+21,000
| +156% | +$3.43M | 0.01% | 1178 |
|
|
2025
Q3 | $1.89M | Sell |
13,500
-5,900
| -30% | -$798K | ﹤0.01% | 1861 |
|
|
2025
Q2 | $2.44M | Sell |
19,400
-13,100
| -40% | -$1.63M | ﹤0.01% | 1609 |
|
|
2025
Q1 | $4.45M | Buy |
32,500
+17,400
| +115% | +$2.49M | 0.01% | 1174 |
|
|
2024
Q4 | $2.31M | Buy |
15,100
+4,700
| +45% | +$793K | ﹤0.01% | 1602 |
|
|
2024
Q3 | $2.02M | Sell |
10,400
-2,100
| -17% | -$439K | ﹤0.01% | 1683 |
|
|
2024
Q2 | $2.9M | Sell |
12,500
-16,100
| -56% | -$3.5M | 0.01% | 1374 |
|
|
2024
Q1 | $6.17M | Buy |
28,600
+4,100
| +17% | +$960K | 0.01% | 999 |
|
|
2023
Q4 | $6.34M | Buy |
24,500
+7,300
| +42% | +$1.79M | 0.01% | 1093 |
|
|
2023
Q3 | $4.42M | Sell |
17,200
-3,500
| -17% | -$936K | 0.01% | 1200 |
|
|
2023
Q2 | $5.9M | Sell |
20,700
-17,900
| -46% | -$5.33M | 0.02% | 858 |
|
|
2023
Q1 | $10.7M | Sell |
38,600
-41,900
| -52% | -$11.6M | 0.02% | 601 |
|
|
2022
Q4 | $22.3M | Sell |
80,500
-17,400
| -18% | -$4.91M | 0.06% | 321 |
|
|
2022
Q3 | $26.1M | Buy |
97,900
+25,300
| +35% | +$5.37M | 0.08% | 239 |
|
|
2022
Q2 | $14.8M | Buy |
72,600
+52,400
| +259% | +$10.7M | 0.05% | 438 |
|
|
2022
Q1 | $4.25M | Sell |
20,200
-14,700
| -42% | -$3.2M | 0.01% | 1096 |
|
|
2021
Q4 | $8.37M | Buy |
34,900
+23,300
| +201% | +$5.99M | 0.03% | 698 |
|
|
2021
Q3 | $3.28M | Buy |
11,600
+8,300
| +252% | +$2.72M | 0.01% | 1195 |
|
|
2021
Q2 | $1.14M | Sell |
3,300
-4,800
| -59% | -$1.45M | ﹤0.01% | 2010 |
|
|
2021
Q1 | $2.27M | Sell |
8,100
-20,100
| -71% | -$5.42M | 0.01% | 1236 |
|
|
2020
Q4 | $6.91M | Sell |
28,200
-25,400
| -47% | -$6.55M | 0.03% | 556 |
|
|
2020
Q3 | $15.2M | Buy |
53,600
+31,000
| +137% | +$8.65M | 0.08% | 178 |
|
|
2020
Q2 | $6.05M | Sell |
22,600
-2,400
| -10% | -$721K | 0.04% | 444 |
|
|
2020
Q1 | $7.91M | Sell |
25,000
-2,800
| -10% | -$850K | 0.06% | 241 |
|
|
2019
Q4 | $8.25M | Buy |
27,800
+20,500
| +281% | +$5.69M | 0.06% | 351 |
|
|
2019
Q3 | $1.7M | Sell |
7,300
-13,700
| -65% | -$3.19M | 0.01% | 1184 |
|
|
2019
Q2 | $4.91M | Buy |
21,000
+20,200
| +2,525% | +$4.66M | 0.04% | 467 |
|
|
2019
Q1 | $189K | Sell |
800
-11,400
| -93% | -$3.59M | ﹤0.01% | 3068 |
|
|
2018
Q4 | $3.67M | Buy |
12,200
+3,200
| +36% | +$1.02M | 0.03% | 647 |
|
|
2018
Q3 | $3.18M | Sell |
9,000
-17,600
| -66% | -$6.06M | 0.02% | 949 |
|
|
2018
Q2 | $7.72M | Sell |
26,600
-2,600
| -9% | -$731K | 0.04% | 390 |
|
|
2018
Q1 | $8M | Buy |
29,200
+10,900
| +60% | +$3.38M | 0.05% | 328 |
|
|
2017
Q4 | $5.83K | Sell |
18,300
-1,300
| -7% | -$417K | 0.03% | 587 |
|
|
2017
Q3 | $6.13K | Sell |
19,600
-1,400
| -7% | -$415K | 0.03% | 545 |
|
|
2017
Q2 | $5.7K | Buy |
21,000
+10,100
| +93% | +$2.67M | 0.03% | 498 |
|
|
2017
Q1 | $2.98K | Buy |
10,900
+4,200
| +63% | +$1.19M | 0.02% | 802 |
|
|
2016
Q4 | $1.9M | Sell |
6,700
-6,700
| -50% | -$1.99M | 0.01% | 1010 |
|
|
2016
Q3 | $4.19M | Sell |
13,400
-2,600
| -16% | -$770K | 0.03% | 516 |
|
|
2016
Q2 | $3.86M | Buy |
16,000
+11,200
| +233% | +$2.95M | 0.03% | 587 |
|
|
2016
Q1 | $1.25M | Sell |
4,800
-5,800
| -55% | -$1.53M | 0.01% | 1204 |
|
|
2015
Q4 | $3.25M | Buy |
10,600
+2,800
| +36% | +$805K | 0.03% | 537 |
|
|
2015
Q3 | $2.27M | Buy |
7,800
+2,000
| +34% | +$660K | 0.02% | 594 |
|
|
2015
Q2 | $2.34M | Sell |
5,800
-4,800
| -45% | -$1.93M | 0.02% | 622 |
|
|
2015
Q1 | $4.47M | Sell |
10,600
-300
| -3% | -$118K | 0.04% | 351 |
|
|
2014
Q4 | $3.7M | Buy |
10,900
+10,000
| +1,111% | +$3.24M | 0.03% | 412 |
|
|
2014
Q3 | $297K | Sell |
900
-2,100
| -70% | -$692K | ﹤0.01% | 1752 |
|
|
2014
Q2 | $946 | Sell |
3,000
-8,900
| -75% | -$2.68M | 0.01% | 839 |
|
|
2014
Q1 | $3.64K | Sell |
11,900
-19,300
| -62% | -$6.13M | 0.05% | 234 |
|
|
2013
Q4 | $8.72M | Sell |
31,200
-2,400
| -7% | -$621K | 0.08% | 155 |
|
|
2013
Q3 | $8.09M | Buy |
33,600
+1,400
| +4% | +$313K | 0.09% | 174 |
|
|
2013
Q2 | $6.93M | Buy |
+32,200
| New | +$6.88M | 0.07% | 234 |
|
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.