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U S SILICA HLDGS INC
U S SILICA HLDGS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 4 Institutional holders with a total value of $9,063,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 267,000 5,001,000 55.18% Call
2 CITADEL ADVISORS LLC 158,100 2,961,000 32.67% Call
3 Timber Hill LLC 58,200 1,090,000 12.03% Call
4 SIMPLEX TRADING, LLC 554 11,000 0.12% 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.