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MERCK & CO
MERCK & CO. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 10 Institutional holders with a total value of $104,782,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 716,600 35,392,000 33.78% Call
2 Timber Hill LLC 669,900 33,086,000 31.58% Call
3 JPMORGAN CHASE & CO 438,140 21,639,000 20.65% Call
4 GROUP ONE TRADING LLC 114,100 5,635,000 5.38% Call
5 Iguana Healthcare Management, LLC 75,000 3,704,000 3.53% Call
6 Allianz Asset Management GmbH 54,500 2,692,000 2.57% Call
7 Virtu KCG Holdings LLC 50,100 2,474,000 2.36% Call
8 SIMPLEX TRADING, LLC 911 70,000 0.07% Call
9 SG Americas Securities, LLC 611,300 53,000 0.05%
10 Catalyst Capital Advisors LLC 150 37,000 0.04% Call

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.