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W.R. GRACE CO.
W.R. GRACE CO.. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 4 Institutional holders with a total value of $14,438,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 69,300 6,902,000 47.80% Call
2 CITADEL ADVISORS LLC 49,300 4,910,000 34.01% Call
3 Timber Hill LLC 23,700 2,360,000 16.35% Call
4 SIMPLEX TRADING, LLC 391 266,000 1.84% 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.