BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

State of Wyoming's Holding History (CIK: 0001821626)

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

Q4 2025
Shares 1,293 Value ($000) $228 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 1,527 Value ($000) $214 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 3,379 Value ($000) $424 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 2,561 Value ($000) $350 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 2,505 Value ($000) $383 Avg Close $168.67 Range $145.07 - $195.00
Q2 2023
Shares 368 Value ($000) $105 Avg Close $297.86 Range $273.39 - $319.76
Q4 2022
Shares 363 Value ($000) $101 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 913 Value ($000) $244 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 234 Value ($000) $48 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 1,184 Value ($000) $249 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 1,329 Value ($000) $319 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 1,020 Value ($000) $288 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 1,067 Value ($000) $369 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 160 Value ($000) $45 Avg Close $269.69 Range $238.40 - $296.38