BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Summit Trail Advisors, LLC's Holding History (CIK: 0001698478)

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

Q4 2025
Shares 5,401 Value ($000) $951 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 5,889 Value ($000) $825 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 2,687 Value ($000) $337 Avg Close $124.60 Range $110.04 - $137.32
Q4 2018
Shares 1,518 Value ($000) $457 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 2,853 Value ($000) $1,008 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 2,610 Value ($000) $757 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 7,779 Value ($000) $1,491 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 5,999 Value ($000) $2,042 Avg Close $320.80 Range $301.81 - $348.84