BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

KLINGENSTEIN FIELDS & CO LP's Holding History (CIK: 0000859872)

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

Q4 2025
Shares 2,731 Value ($000) $481 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 2,731 Value ($000) $383 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 2,731 Value ($000) $343 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 2,731 Value ($000) $374 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 2,731 Value ($000) $418 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 2,956 Value ($000) $573 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 3,056 Value ($000) $708 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 3,131 Value ($000) $675 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 3,143 Value ($000) $813 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 3,143 Value ($000) $808 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 1,825 Value ($000) $520 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 1,570 Value ($000) $437 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 1,570 Value ($000) $435 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 1,570 Value ($000) $419 Avg Close $212.38 Range $193.65 - $283.44
Q2 2017
Shares 60,947 Value ($000) $16,538 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 61,846 Value ($000) $16,910 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 61,756 Value ($000) $17,513 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 57,976 Value ($000) $18,148 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 57,904 Value ($000) $14,003 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 54,918 Value ($000) $14,296 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 53,086 Value ($000) $16,263 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 53,318 Value ($000) $15,558 Avg Close $330.23 Range $265.00 - $412.24