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GILEAD SCIENCES INC
GILEAD SCIENCES INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 12 Institutional holders with a total value of $214,787,102.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 9,967 97,806,000 45.54% Call
2 Timber Hill LLC 475,200 46,631,000 21.71% Call
3 CITADEL ADVISORS LLC 301,400 29,576,000 13.77% Call
4 GROUP ONE TRADING LLC 154,400 15,151,000 7.05% Call
5 Virtu KCG Holdings LLC 70,300 6,899,000 3.21% Call
6 Allianz Asset Management GmbH 62,700 6,153,000 2.86% Call
7 Marathon Trading Investment Management LLC 50,000 4,907,000 2.28% Call
8 SG Americas Securities, LLC 230,600 3,983,000 1.85% Call
9 SIMPLEX TRADING, LLC 6,737 1,837,000 0.86% Call
10 Achievement Holdings L.P. 10,600 1,040,000 0.48%
11 Calamos Advisors LLC 1,650 804,000 0.37% Call
12 AMERICAN INTERNATIONAL GROUP, INC. 3 102 0.00% 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.