BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

America First Investment Advisors, LLC's Holding History (CIK: 0001308778)

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

Q4 2017
Shares 35 Value ($000) $11 Avg Close $320.80 Range $301.81 - $348.84