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ZIOPHARM ONCOLOGY INC
ZIOPHARM ONCOLOGY INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 3 Institutional holders with a total value of $12,557,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 1,056,500 11,379,000 90.62% Call
2 CITADEL ADVISORS LLC 55,100 593,000 4.72% Call
3 SIMPLEX TRADING, LLC 1,173 585,000 4.66% 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.