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

Institutional Holders (2016Q4)
Portfolio Summary: 5 Institutional holders with a total value of $10,950,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 127,700 7,238,000 66.10% Call
2 Timber Hill LLC 56,300 3,191,000 29.14% Call
3 SIMPLEX TRADING, LLC 520 461,000 4.21% Call
4 BLAIR WILLIAM & CO/IL 700 39,000 0.36% Call
5 SEVENBRIDGE FINANCIAL GROUP, LLC 10 21,000 0.19% 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.