Alexander Susan H

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
10 Feb 25	BIIB Biogen	Common Stock	Payment of exercise	Dispose F	No	No	142.54	807	115.03 k	36,265
10 Feb 25	BIIB Biogen	Common Stock	Option exercise	Acquire M	No	No	0	2,575	0.00	37,072
10 Feb 25	BIIB Biogen	RSU Common Stock	Option exercise	Dispose M	No	No	0	2,575	0.00	0
7 Feb 25	BIIB Biogen	Common Stock	Payment of exercise	Dispose F	No	No	141.35	591	83.54 k	34,497
7 Feb 25	BIIB Biogen	Common Stock	Option exercise	Acquire M	No	No	0	1,940	0.00	35,088
7 Feb 25	BIIB Biogen	Common Stock	Payment of exercise	Dispose F	No	No	141.35	643	90.89 k	33,148
7 Feb 25	BIIB Biogen	Common Stock	Option exercise	Acquire M	No	No	0	2,190	0.00	33,791
7 Feb 25	BIIB Biogen	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,940	0.00	3,880
7 Feb 25	BIIB Biogen	RSU Common Stock	Option exercise	Dispose M	No	No	0	2,190	0.00	2,190
6 Feb 25	BIIB Biogen	RSU Common Stock	Grant	Acquire A	No	No	0	14,750	0.00	14,750

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.