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Hudson Bay Capital Management LP
> BIIB
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | BIOGEN INC. | BIIB | 57,500 | -51,806 | 16,378,875,000 | -14,011,472,000 | $284,850.00 |
| 03/31/2023 | BIOGEN INC. | BIIB | 109,306 | 56,806 | 30,390,347,000 | 15,852,047,000 | $278,030.00 |
| 12/31/2022 | BIOGEN INC. | BIIB | 52,500 | 5,000 | 14,538,300,000 | 14,525,617,000 | $276,920.00 |
| 09/30/2022 | BIOGEN INC. | BIIB | 47,500 | 22,500 | 12,683,000 | 7,584,000 | $267.01 |
| 06/30/2022 | BIOGEN INC. | BIIB | 25,000 | 10,000 | 5,099,000 | 1,940,000 | $203.96 |
| 03/31/2022 | BIOGEN INC. | BIIB | 15,000 | -29,000 | 3,159,000 | -7,397,000 | $210.60 |
| 12/31/2021 | BIOGEN INC. | BIIB | 44,000 | 24,000 | 10,556,000 | 4,896,000 | $239.91 |
| 09/30/2021 | BIOGEN INC. | BIIB | 20,000 | 5,000 | 5,660,000 | 466,000 | $283.00 |
| 06/30/2021 | BIOGEN INC. | BIIB | 15,000 | 15,000 | 5,194,000 | 5,194,000 | $346.27 |
| 03/31/2021 | BIOGEN INC. | BIIB | 0 | -20,000 | 0 | -4,897,000 | |
| 12/31/2020 | BIOGEN INC. | BIIB | 20,000 | -30,000 | 4,897,000 | -9,287,000 | $244.85 |
| 09/30/2020 | BIOGEN INC. | BIIB | 50,000 | 2,500 | 14,184,000 | 1,476,000 | $283.68 |
| 06/30/2020 | BIOGEN INC. | BIIB | 47,500 | 37,500 | 12,708,000 | 9,544,000 | $267.54 |
| 03/31/2020 | BIOGEN INC. | BIIB | 10,000 | 10,000 | 3,164,000 | 3,164,000 | $316.40 |
| 09/30/2019 | BIOGEN INC. | BIIB | 0 | -7,500 | 0 | -1,754,000 | |
| 06/30/2019 | BIOGEN INC. | BIIB | 7,500 | -26,300 | 1,754,000 | -6,236,000 | $233.87 |
| 03/31/2019 | BIOGEN INC. | BIIB | 33,800 | 19,100 | 7,990,000 | 3,566,000 | $236.39 |
| 12/31/2018 | BIOGEN INC. | BIIB | 14,700 | -15,300 | 4,424,000 | -6,175,000 | $300.95 |
| 09/30/2018 | BIOGEN INC. | BIIB | 30,000 | 0 | 10,599,000 | 1,892,000 | $353.30 |
| 06/30/2018 | BIOGEN INC. | BIIB | 30,000 | -10,000 | 8,707,000 | -2,246,000 | $290.23 |
| 03/31/2018 | BIOGEN INC. | BIIB | 40,000 | 25,000 | 10,953,000 | 6,174,000 | $273.83 |
| 12/31/2017 | BIOGEN INC. | BIIB | 15,000 | 0 | 4,779,000 | 82,000 | $318.60 |
| 09/30/2017 | BIOGEN INC. | BIIB | 15,000 | -20,000 | 4,697,000 | -4,801,000 | $313.13 |
| 06/30/2017 | BIOGEN INC. | BIIB | 35,000 | 35,000 | 9,498,000 | 9,498,000 | $271.37 |
| 03/31/2017 | BIOGEN INC. | BIIB | 0 | -71,402 | 0 | -20,248,000 | |
| 12/31/2016 | BIOGEN INC. | BIIB | 71,402 | -36,907 | 20,248,000 | -13,656,000 | $283.58 |
| 09/30/2016 | BIOGEN INC. | BIIB | 108,309 | 108,309 | 33,904,000 | 33,904,000 | $313.03 |
| 03/31/2012 | BIOGEN INC. | BIIB | 0 | -7,000 | 0 | -770,000 | |
| 12/31/2011 | BIOGEN INC. | BIIB | 7,000 | 7,000 | 770,000 | 770,000 | $110.00 |
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