Calamos Advisors LLC - BIOGEN INC ownership

BIOGEN INC's ticker is and the CUSIP is 09062X903. A total of 12 filers reported holding BIOGEN INC in Q4 2019. The put-call ratio across all filers is 0.00 and the average weighting 0.1%.

Quarter-by-quarter ownership
Calamos Advisors LLC ownership history of BIOGEN INC
ValueSharesWeighting
Q4 2019$7,774,000
-41.9%
26,200
-30.9%
0.04%
-48.6%
Q3 2018$13,390,000
+443.6%
37,900
+3415.8%
0.07%
+393.3%
Q2 2015$2,463,000
-27.2%
1,078
-8.9%
0.02%
-28.6%
Q1 2015$3,383,0001,1830.02%
Other shareholders
BIOGEN INC shareholders Q4 2019
NameSharesValueWeighting ↓
PURA VIDA INVESTMENTS, LLC 348,900$71,155,0004.13%
PFM Health Sciences, LP 166,800$34,017,0001.30%
GROUP ONE TRADING, L.P. 198,500$40,482,0000.06%
SIMPLEX TRADING, LLC 237,000$48,333,0000.05%
JANE STREET GROUP, LLC 313,400$63,915,0000.03%
IMC-Chicago, LLC 73,200$14,928,0000.02%
JPMORGAN CHASE & CO 192,700$39,299,0000.01%
Twin Tree Management, LP 11,300$2,305,0000.00%
SG Americas Securities, LLC 23,200$323,0000.00%
Focused Wealth Management, Inc 2,400$8,0000.00%
View complete list of BIOGEN INC shareholders