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BIIBBIIB
29 quarters

Position history for Walleye Trading LLCWalleye Trading LLC's holdings in BIOGEN INC

Yes. Walleye Trading holds 139,253 shares of BIIB (Biogen), worth $30.1M, as of its Q2 2026 13F filing. It increased the position by 39,721 shares (+39.9%) from Q1 2026. Walleye Trading has held BIIB since Q4 2025, across 3 quarterly 13F filings.

Current Value

$30.1M

Current Shares

139,253

Total Value Change

+$29.2M

Total Shares Change

+136,179

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
139,253
+39.9%
$30.1M0.0%$216.06
38
2026-Q1
Increased
99,532
+4.2%
$18.2M0.0%$183.33
30
2025-Q4
New
95,522
-
$16.8M0.0%$175.99
39
2025-Q2
Exited
0
-100.0%
$00.0%$125.59
0
2025-Q1
New
11,191
-
$1.5M0.0%$136.84
35
2024-Q4
Exited
0
-100.0%
$00.0%$152.92
0
2024-Q3
Increased
17,102
+23.6%
$3.3M0.0%$193.84
32
2024-Q2
Increased
13,839
+8714.6%
$3.2M0.0%$231.82
43
2024-Q1
New
157
-
$33,8540.0%$215.63
27
2023-Q3
Exited
0
-100.0%
$00.0%$257.01
0
2023-Q2
Decreased
6,800
-62.6%
$1.9M0.0%$284.85
0
2023-Q1
New
18,204
-
$5.1M0.0%$278.03
37
2022-Q4
Exited
0
-100.0%
$00.0%$276.92
0
2022-Q3
Decreased
1,511
-94.8%
$403,0000.0%$267.00
0
2022-Q2
Increased
29,344
+54.4%
$6M0.0%$203.94
38
2022-Q1
Increased
19,011
+289.8%
$4M0.0%$210.60
43
2021-Q4
Decreased
4,877
-48.2%
$1.2M0.0%$239.92
0
2021-Q3
Decreased
9,412
-57.4%
$2.7M0.0%$282.99
0
2021-Q2
Increased
22,108
+701.3%
$7.7M0.0%$346.27
44
2021-Q1
Decreased
2,759
-82.2%
$772,0000.0%$279.75
0
2020-Q4
Increased
15,496
+149.9%
$3.8M0.0%$244.86
43
2020-Q3
Decreased
6,200
-60.6%
$1.8M0.0%$283.68
0
2020-Q2
Increased
15,754
+12.8%
$4.2M0.0%$267.55
30
2020-Q1
Decreased
13,960
-63.2%
$4.4M0.0%$316.38
0
2019-Q4
Increased
37,962
+740.8%
$11.3M0.1%$296.73
45
2019-Q3
Increased
4,515
+743.9%
$1.1M0.0%$232.82
40
2019-Q2
Decreased
535
-88.8%
$125,0000.0%$233.87
0
2019-Q1
Increased
4,781
+55.5%
$1.1M0.0%$236.38
36
2018-Q4
First report
3,074
-
$925,0000.0%$300.92
0

Other major holders of BIIB: PRIMECAP MANAGEMENT CO/CA/

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