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CIENA CORP
CIENA CORP. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 6 Institutional holders with a total value of $9,725,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 NORTHERN TRUST CORP 278,454 6,594,000 67.80%
2 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 121,926 2,887,000 29.69%
3 INGALLS & SNYDER LLC 8,937 211,000 2.17% SH
4 CENTERSTAR FUND, LLC 1,236 29,000 0.30% PRN
5 CENTERSTAR FUND, LLC 2,300 4,000 0.04% Call PRN
6 CENTERSTAR FUND, LLC 600 0 0.00% Put PRN

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.