BIOGEN INC

CUSIP: 09062x103 Class: COM

Douglass Winthrop Advisors, LLC's Holding History (CIK: 0001308527)

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

Q4 2018
Shares 1,392 Value ($000) $419 Avg Close — Range —
Q3 2018
Shares 1,392 Value ($000) $492 Avg Close — Range —
Q2 2018
Shares 1,392 Value ($000) $404 Avg Close — Range —
Q1 2018
Shares 1,317 Value ($000) $361 Avg Close — Range —
Q4 2017
Shares 2,550 Value ($000) $812 Avg Close — Range —
Q4 2015
Shares 2,850 Value ($000) $873 Avg Close — Range —
Q3 2015
Shares 2,850 Value ($000) $832 Avg Close — Range —
Q2 2015
Shares 2,900 Value ($000) $1,224 Avg Close — Range —
Q1 2015
Shares 2,900 Value ($000) $1,224 Avg Close — Range —
Q4 2014
Shares 3,032 Value ($000) $1,029 Avg Close — Range —