Tamarack Advisers, LP - AMGEN INC ownership

AMGEN INC's ticker is and the CUSIP is 031162950. A total of 15 filers reported holding AMGEN INC in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.5%.

Quarter-by-quarter ownership
Tamarack Advisers, LP ownership history of AMGEN INC
ValueSharesWeighting
Q2 2019$11,000
-94.4%
250
+25.0%
0.00%
-94.6%
Q3 2018$197,0002000.06%
Other shareholders
AMGEN INC shareholders Q2 2019
NameSharesValueWeighting ↓
Gladius Capital Management LP 75,500$17,359,0000.86%
Marathon Trading Investment Management LLC 5,000$1,150,0000.06%
SIMPLEX TRADING, LLC 1,351$31,062,0000.04%
IMC-Chicago, LLC 67,300$15,474,0000.02%
GROUP ONE TRADING, L.P. 36,800$8,461,0000.02%
JPMORGAN CHASE & CO 78,900$18,141,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
Compagnie Lombard Odier SCmA 0$00.00%
View complete list of AMGEN INC shareholders