Holdings in BIIB
| Report Date |
Value (USD) |
Shares |
Change |
Type |
Discretion |
Filed |
| 2025-12-31 |
$33,420,501 |
189,900 |
-46.0%
|
Shares |
Defined |
2026-02-12 |
| 2025-12-31 |
$61,842,886 |
351,400 |
+1392.8%
|
Shares |
Defined |
2026-02-12 |
| 2025-12-31 |
$4,142,627 |
23,539 |
-93.9%
|
Shares |
Defined |
2026-02-12 |
| 2025-09-30 |
$53,720,680 |
383,500 |
+7081.6%
|
Shares |
Defined |
2025-11-14 |
| 2025-09-30 |
$748,026 |
5,340 |
-97.4%
|
Shares |
Defined |
2025-11-14 |
| 2025-09-30 |
$29,094,616 |
207,700 |
-33.5%
|
Shares |
Defined |
2025-11-14 |
| 2025-06-30 |
$39,246,875 |
312,500 |
-3.3%
|
Shares |
Defined |
2025-08-14 |
| 2025-06-30 |
$40,565,570 |
323,000 |
+877.6%
|
Shares |
Defined |
2025-08-14 |
| 2025-06-30 |
$4,149,619 |
33,041 |
-80.9%
|
Shares |
Defined |
2025-08-14 |
| 2025-03-31 |
$23,673,320 |
173,000 |
-17.7%
|
Shares |
Defined |
2025-05-19 |
| 2025-03-31 |
$28,777,452 |
210,300 |
+464.5%
|
Shares |
Defined |
2025-05-19 |
| 2025-03-31 |
$5,097,836 |
37,254 |
-49.9%
|
Shares |
Defined |
2025-05-19 |
| 2024-12-31 |
$11,361,956 |
74,300 |
-50.1%
|
Shares |
Defined |
2025-02-14 |
| 2024-12-31 |
$22,769,788 |
148,900 |
-26.5%
|
Shares |
Defined |
2025-02-14 |
| 2024-12-31 |
$30,987,402 |
202,638 |
+83.7%
|
Shares |
Defined |
2025-02-14 |
| 2024-09-30 |
$21,378,418 |
110,289 |
+68.9%
|
Shares |
Defined |
2024-11-15 |
| 2024-09-30 |
$12,657,752 |
65,300 |
-12.3%
|
Shares |
Defined |
2024-11-15 |
| 2024-09-30 |
$14,441,080 |
74,500 |
-58.2%
|
Shares |
Defined |
2024-11-15 |
| 2024-06-30 |
$41,302,441 |
178,166 |
+107.2%
|
Shares |
Defined |
2024-08-15 |
| 2024-03-31 |
$18,542,885 |
85,994 |
-58.0%
|
Shares |
Defined |
2024-05-16 |
| 2023-12-31 |
$52,967,113 |
204,688 |
+336.9%
|
Shares |
Defined |
2024-02-15 |
| 2023-09-30 |
$12,041,946 |
46,854 |
-65.3%
|
Shares |
Defined |
2023-11-15 |
| 2023-06-30 |
$38,429,967 |
134,913 |
+170.3%
|
Shares |
Defined |
2023-08-14 |
| 2023-03-31 |
$13,876,475 |
49,910 |
-76.0%
|
Shares |
Defined |
2023-05-16 |
| 2022-12-31 |
$57,483,330 |
207,581 |
-31.8%
|
Shares |
Defined |
2023-02-15 |
| 2022-09-30 |
$81,312,180 |
304,540 |
+60.5%
|
Shares |
Defined |
2022-11-15 |
| 2022-06-30 |
$38,689,457 |
189,710 |
-40.2%
|
Shares |
Defined |
2022-08-16 |
| 2022-03-31 |
$66,781,260 |
317,100 |
+72.8%
|
Shares |
Defined |
2022-05-17 |
| 2022-03-31 |
$38,641,519 |
183,483 |
-23.7%
|
Shares |
Defined |
2022-05-17 |
| 2022-03-31 |
$50,649,300 |
240,500 |
-28.5%
|
Shares |
Defined |
2022-05-17 |
| 2021-12-31 |
$80,661,104 |
336,200 |
+109.5%
|
Shares |
Defined |
2022-02-15 |
| 2021-12-31 |
$38,504,999 |
160,491 |
-49.5%
|
Shares |
Defined |
2022-02-15 |
| 2021-12-31 |
$76,198,592 |
317,600 |
-33.6%
|
Shares |
Defined |
2022-02-15 |
| 2021-09-30 |
$135,410,715 |
478,500 |
+43.3%
|
Shares |
Defined |
2021-11-16 |
| 2021-09-30 |
$94,518,660 |
334,000 |
+254.7%
|
Shares |
Defined |
2021-11-16 |
| 2021-09-30 |
$26,649,167 |
94,170 |
-85.6%
|
Shares |
Defined |
2021-11-16 |
| 2021-06-30 |
$225,906,548 |
652,400 |
+689.0%
|
Shares |
Defined |
2021-08-16 |
| 2021-06-30 |
$28,631,679 |
82,686 |
-78.8%
|
Shares |
Defined |
2021-08-16 |
| 2021-06-30 |
$135,183,808 |
390,400 |
+26.3%
|
Shares |
Defined |
2021-08-16 |
| 2021-03-31 |
$86,442,750 |
309,000 |
+151.8%
|
Shares |
Defined |
2021-05-18 |
| 2021-03-31 |
$34,323,925 |
122,695 |
-45.5%
|
Shares |
Defined |
2021-05-18 |
| 2021-03-31 |
$62,999,700 |
225,200 |
-16.9%
|
Shares |
Defined |
2021-05-18 |
| 2020-12-31 |
$66,381,546 |
271,100 |
-44.0%
|
Shares |
Defined |
2021-02-17 |
| 2020-12-31 |
$118,438,782 |
483,700 |
+97.6%
|
Shares |
Defined |
2021-02-17 |
| 2020-12-31 |
$59,944,421 |
244,811 |
-24.6%
|
Shares |
Defined |
2021-02-17 |
| 2020-09-30 |
$92,054,160 |
324,500 |
+18.8%
|
Shares |
Defined |
2020-11-17 |
| 2020-09-30 |
$77,501,376 |
273,200 |
+136.0%
|
Shares |
Defined |
2020-11-17 |
| 2020-09-30 |
$32,837,945 |
115,757 |
-55.8%
|
Shares |
Defined |
2020-11-17 |
| 2020-06-30 |
$70,071,345 |
261,900 |
+64.4%
|
Shares |
Defined |
2020-08-17 |
| 2020-06-30 |
$42,633,289 |
159,347 |
—
|
Shares |
Defined |
2020-08-17 |
