BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q4 2025
Shares 21,720 Value ($000) $3,823 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 2,222 Value ($000) $311 Avg Close $135.17 Range $121.05 - $150.28
Q4 2024
Shares 2,745 Value ($000) $420 Avg Close $168.67 Range $145.07 - $195.00
Q4 2021
Shares 2,686 Value ($000) $644 Avg Close $257.12 Range $221.72 - $290.76
Q4 2020
Shares 42,471 Value ($000) $10,399 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 19,034 Value ($000) $5,400 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 11,876 Value ($000) $3,177 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 32,747 Value ($000) $10,360 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 29,387 Value ($000) $8,720 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 47,563 Value ($000) $11,074 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 23,119 Value ($000) $5,407 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 2,957 Value ($000) $699 Avg Close $314.89 Range $216.12 - $344.00