BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Hudson Bay Capital Management LP's Holding History (CIK: 0001393825)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 221,860 Value ($000) $39,045 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 253,151 Value ($000) $35,461 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 267,740 Value ($000) $33,625 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 200,520 Value ($000) $27,439 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 241,008 Value ($000) $36,855 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 300,000 Value ($000) $58,152 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 195,000 Value ($000) $45,205 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 225,000 Value ($000) $48,517 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 135,000 Value ($000) $34,934 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 82,500 Value ($000) $21,203 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 57,500 Value ($000) $16,379 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 109,306 Value ($000) $30,390 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 52,500 Value ($000) $14,538 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 47,500 Value ($000) $12,683 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 25,000 Value ($000) $5,099 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 15,000 Value ($000) $3,159 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 44,000 Value ($000) $10,556 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 20,000 Value ($000) $5,660 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 15,000 Value ($000) $5,194 Avg Close $302.94 Range $257.03 - $468.55
Q4 2020
Shares 20,000 Value ($000) $4,897 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 50,000 Value ($000) $14,184 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 47,500 Value ($000) $12,708 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 10,000 Value ($000) $3,164 Avg Close $303.47 Range $262.25 - $374.99
Q2 2019
Shares 7,500 Value ($000) $1,754 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 33,800 Value ($000) $7,990 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 14,700 Value ($000) $4,424 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 30,000 Value ($000) $10,599 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 30,000 Value ($000) $8,707 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 40,000 Value ($000) $10,953 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 15,000 Value ($000) $4,779 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 15,000 Value ($000) $4,697 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 35,000 Value ($000) $9,498 Avg Close $264.42 Range $244.28 - $291.90
Q4 2016
Shares 71,402 Value ($000) $20,248 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 108,309 Value ($000) $33,904 Avg Close $296.18 Range $240.07 - $333.65