BIIB

Latest market price

158.40

+5.00+3.26%

BIIBQT67Biogen Inc·NASDAQ

158.40+3.26%

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Short Interest History· Bi-weekly

Settlement Date	Short Interest	Avg Daily Volume	Shares Float	Short Float %	Short Ratio
May-14-26	2.65M	5.57M	133.59M	1.98%	0.47
Apr-29-26	2.77M	5.07M	133.59M	2.07%	0.55
Apr-14-26	2.93M	5.40M	133.59M	2.20%	0.54
Mar-30-26	2.81M	4.95M	133.59M	2.10%	0.57
Mar-15-26	2.73M	5.69M	133.59M	2.05%	0.48
Feb-26-26	2.70M	5.43M	133.59M	2.02%	0.50
Feb-15-26	2.67M	6.14M	133.59M	2.00%	0.44
Jan-29-26	2.78M	6.06M	133.59M	2.08%	0.46
Jan-14-26	2.92M	4.95M	133.59M	2.19%	0.59
Dec-30-25	3.00M	6.07M	133.59M	2.24%	0.49
Dec-14-25	3.04M	6.30M	133.59M	2.28%	0.48
Nov-27-25	3.05M	5.46M	133.59M	2.28%	0.56