Hedge Fund - Palo Alto Investors

Biogen Inc. (BIIB) 

Holding History Records
No. Filing Period Value % of Portfolio Number of Shares Avg. Quarterly Share Price
1 2025 - Q4 (2025-12-31) $32,306,660 4.5% 183,571 $163.37
2 2025 - Q3 (2025-09-30) $26,007,393 4.81% 185,661 $135.17
3 2025 - Q2 (2025-06-30) $25,841,273 5.5% 205,759 $124.60
4 2025 - Q1 (2025-03-31) $28,041,663 5.34% 204,923 $142.96
5 2024 - Q4 (2024-12-31) $29,077,432 4.5% 190,148 $168.67
6 2024 - Q3 (2024-09-30) $44,373,077 5.76% 228,916 $209.21
7 2024 - Q2 (2024-06-30) $67,007,571 7.76% 289,050 $217.32
8 2024 - Q1 (2024-03-31) $62,523,644 7.05% 289,958 $234.20
9 2023 - Q4 (2023-12-31) $98,440,507 8.86% 380,417 $245.62
10 2023 - Q3 (2023-09-30) $97,993,287 9.27% 381,282 $267.47
11 2023 - Q2 (2023-06-30) $108,608,178 8.77% 381,282 $297.84
12 2023 - Q1 (2023-03-31) $106,007,834 8.78% 381,282 $276.70
13 2022 - Q4 (2022-12-31) $105,252,307 8.97% 380,082 $282.44
14 2022 - Q3 (2022-09-30) $96,382,000 7.62% 360,981 $212.38
15 2022 - Q2 (2022-06-30) $73,618,000 6.41% 360,981 $204.43
16 2022 - Q1 (2022-03-31) $76,023,000 5.87% 360,981 $217.46
17 2021 - Q4 (2021-12-31) $92,369,000 5.9% 385,000 $257.12
18 2021 - Q3 (2021-09-30) $102,329,000 6.17% 361,600 $327.75
19 2021 - Q2 (2021-06-30) $125,211,000 6.9% 361,600 $302.94
20 2021 - Q1 (2021-03-31) $96,010,000 5.47% 343,200 $269.69
21 2020 - Q4 (2020-12-31) $57,371,000 3% 234,300 $259.08

The displayed share prices are average quarterly stock market prices.