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GROUPON INC CALL
GROUPON INC CALL. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 5 Institutional holders with a total value of $9,297,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 GROUP ONE TRADING LLC 609,900 5,038,000 54.19% Call
2 CITADEL ADVISORS LLC 367,700 3,037,000 32.67% Call
3 Marathon Trading Investment Management LLC 70,900 585,000 6.29% Call
4 Timber Hill LLC 67,200 555,000 5.97% Call
5 SIMPLEX TRADING, LLC 520 82,000 0.88% 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.