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

Institutional Holders (2017Q2)
Portfolio Summary: 359 Institutional holders with a total value of $3,857,054,628.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BlackRock Finance, Inc. 15,326,476 383,470,000 9.94%
2 VANGUARD GROUP INC 12,466,282 311,906,000 8.09%
3 Bank of New York Mellon Corp 11,703,680 292,826,000 7.59%
4 Invesco Ltd. 6,719,403 168,120,000 4.36%
5 TIAA CREF INVESTMENT MANAGEMENT LLC 6,649,794 166,378,000 4.31%
6 WELLINGTON MANAGEMENT GROUP LLP 6,559,137 164,109,000 4.25%
7 TEACHERS ADVISORS, LLC 4,657,520 116,531,000 3.02%
8 STATE STREET CORP 4,648,540 116,319,000 3.02%
9 SCHRODER INVESTMENT MANAGEMENT GROUP 2,781,510 70,678,000 1.83%
10 DIMENSIONAL FUND ADVISORS LP 2,821,175 70,588,000 1.83%
11 Carlson Capital, L.P. 2,709,800 67,799,000 1.76%
12 PARNASSUS INVESTMENTS, LLC 2,700,000 67,554,000 1.75%
13 VICTORY CAPITAL MANAGEMENT INC 2,629,725 65,796,000 1.71%
14 VOYA INVESTMENT MANAGEMENT LLC 2,629,074 65,779,000 1.71%
15 PRICE T ROWE ASSOCIATES INC /MD/ 2,556,511 63,964,000 1.66%
16 NORTHERN TRUST CORP 2,316,614 57,962,000 1.50%
17 WESTFIELD CAPITAL MANAGEMENT CO LP 2,135,095 53,420,000 1.38%
18 Roystone Capital Management LP 1,941,300 48,571,000 1.26%
19 THRIVENT FINANCIAL FOR LUTHERANS 1,879,844 47,034,000 1.22%
20 Neuberger Berman Group LLC 1,564,664 39,148,000 1.01%
21 FMR LLC 1,437,640 35,969,000 0.93%
22 NORGES BANK 1,379,265 34,509,000 0.89%
23 MAPLELANE CAPITAL, LLC 1,214,397 30,384,000 0.79%
24 GEODE CAPITAL MANAGEMENT, LLC 1,205,596 30,164,000 0.78%
25 PEREGRINE CAPITAL MANAGEMENT INC /MN/ 1,139,572 28,512,000 0.74%
26 Artemis Investment Management LLP 1,135,329 28,400,000 0.74%
27 GOLDMAN SACHS GROUP INC 1,125,033 28,148,000 0.73%
28 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 1,110,269 27,779,000 0.72%
29 EMERALD ADVISERS, LLC 1,107,807 27,717,000 0.72%
30 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,056,600 26,436,000 0.69% Call
31 Shellback Capital, LP 952,804 23,839,000 0.62%
32 FIL Ltd 919,647 23,010,000 0.60%
33 MORGAN STANLEY 919,131 22,998,000 0.60%
34 JPMORGAN CHASE & CO 907,390 22,703,000 0.59%
35 EMERALD MUTUAL FUND ADVISERS TRUST 899,135 22,496,000 0.58%
36 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 847,006 21,193,000 0.55%
37 ROYCE & ASSOCIATES LP 844,917 21,140,000 0.55%
38 BANK OF AMERICA CORP /DE/ 827,532 20,705,000 0.54%
39 Zweig-DiMenna Associates LLC 767,296 19,198,000 0.50%
40 Retirement Systems of Alabama 753,243 18,846,000 0.49%
41 Polar Asset Management Partners Inc. 720,100 18,017,000 0.47%
42 RENAISSANCE TECHNOLOGIES LLC 688,474 17,226,000 0.45%
43 ALLIANCEBERNSTEIN L.P. 658,416 16,474,000 0.43%
44 AMERICAN CENTURY COMPANIES INC 635,473 15,900,000 0.41%
45 SUSQUEHANNA INTERNATIONAL GROUP, LLP 628,900 15,735,000 0.41% Put
46 TCW GROUP INC 627,129 15,691,000 0.41%
47 State of New Jersey Common Pension Fund D 625,000 15,638,000 0.41%
48 BROADVIEW ADVISORS LLC 614,375 15,372,000 0.40%
49 PRINCIPAL FINANCIAL GROUP INC 607,864 15,209,000 0.39%
50 MAPLELANE CAPITAL, LLC 6,000 15,012,000 0.39% Call
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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.