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

Institutional Holders (2015Q2)
Portfolio Summary: 9 Institutional holders with a total value of $136,267,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 10,000 56,930,000 41.78% Call
2 MUFG Securities EMEA plc 400,000 22,773,000 16.71% Call
3 CITADEL ADVISORS LLC 385,300 21,935,000 16.10% Call
4 Timber Hill LLC 353,800 20,142,000 14.78% Call
5 Allianz Asset Management GmbH 104,700 5,961,000 4.37% Call
6 GROUP ONE TRADING LLC 95,700 5,448,000 4.00% Call
7 Virtu KCG Holdings LLC 45,000 2,562,000 1.88% Call
8 SG Americas Securities, LLC 583,300 383,000 0.28% Call
9 SIMPLEX TRADING, LLC 501 133,000 0.10% 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.