BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

CADIAN CAPITAL MANAGEMENT, LP's Holding History (CIK: 0001423686)

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

Q4 2016
Shares 138,260 Value ($000) $39,208 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 125,000 Value ($000) $39,129 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 65,000 Value ($000) $15,718 Avg Close $263.54 Range $223.02 - $292.69
Q3 2015
Shares 50,000 Value ($000) $14,591 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 50,000 Value ($000) $20,197 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 50,000 Value ($000) $21,112 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 40,000 Value ($000) $13,578 Avg Close $323.51 Range $290.85 - $361.93
Q2 2014
Shares 40,000 Value ($000) $12,612 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 77,700 Value ($000) $23,766 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 80,000 Value ($000) $22,366 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 50,000 Value ($000) $12,038 Avg Close $223.81 Range $203.55 - $248.95