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

Institutional Holders (2014Q4)
Portfolio Summary: 4 Institutional holders with a total value of $1,910,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 46,400 1,012,000 52.98% Call
2 GROUP ONE TRADING LLC 24,100 525,000 27.49% Call
3 Timber Hill LLC 17,100 373,000 19.53% Call
4 SIMPLEX TRADING, LLC 2 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.