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ADTRAN INC
ADTRAN INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 4 Institutional holders with a total value of $1,000,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 30,100 489,000 48.90% Call
2 Timber Hill LLC 23,600 384,000 38.40% Call
3 GROUP ONE TRADING LLC 7,800 127,000 12.70% Call
4 SIMPLEX TRADING, LLC 7 0 0.00% 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.