Priya Singhal

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
9 Dec 24	BIIB Biogen	Common Stock	Sell	Dispose S	No	No	157.21	110	17.29 k	5,426.476
6 Dec 24	BIIB Biogen	Common Stock	Payment of exercise	Dispose F	No	No	157.78	206	32.50 k	5,536.476
6 Dec 24	BIIB Biogen	Common Stock	Option exercise	Acquire M	No	No	0	426	0.00	5,742.476
6 Dec 24	BIIB Biogen	RSU Common Stock	Option exercise	Dispose M	No	No	0	426	0.00	0
3 Sep 24	BIIB Biogen	Common Stock	Sell	Dispose S	No	No	204.22	431	88.02 k	5,316.476
30 Aug 24	BIIB Biogen	Common Stock	Payment of exercise	Dispose F	No	No	204.76	807	165.24 k	5,747.476
30 Aug 24	BIIB Biogen	Common Stock	Option exercise	Acquire M	No	No	0	1,668	0.00	6,554.476
30 Aug 24	BIIB Biogen	RSU Common Stock	Option exercise	Dispose M	No	No	0	1,668	0.00	1,669
2 Apr 24	BIIB Biogen	Common Stock	Sell	Dispose S	No	No	213.09	93	19.82 k	4,886.476
16 Feb 24	BIIB Biogen	Common Stock	Sell	Dispose S	No	No	221.49	108	23.92 k	5,148.092

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