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

Institutional Holders (2016Q3)
Portfolio Summary: 317 Institutional holders with a total value of $3,140,611,807.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 11,007,631 239,966,000 7.64%
2 Bank of New York Mellon Corp 10,533,182 229,624,000 7.31%
3 BlackRock Fund Advisors 7,746,132 168,866,000 5.38%
4 Invesco Ltd. 7,167,613 156,254,000 4.98%
5 PARNASSUS INVESTMENTS, LLC 5,700,000 124,260,000 3.96%
6 TIAA CREF INVESTMENT MANAGEMENT LLC 5,115,370 111,515,000 3.55%
7 TEACHERS ADVISORS, LLC 4,960,818 108,146,000 3.44%
8 STATE STREET CORP 4,389,599 95,690,000 3.05%
9 Carlson Capital, L.P. 4,200,000 91,560,000 2.92%
10 BlackRock Institutional Trust Company, N.A. 4,073,165 88,795,000 2.83%
11 WELLINGTON MANAGEMENT GROUP LLP 2,904,107 63,310,000 2.02%
12 SCHRODER INVESTMENT MANAGEMENT GROUP 2,833,595 61,772,000 1.97%
13 PRICE T ROWE ASSOCIATES INC /MD/ 2,768,584 60,355,000 1.92%
14 DIMENSIONAL FUND ADVISORS LP 2,766,727 60,315,000 1.92%
15 VICTORY CAPITAL MANAGEMENT INC 2,525,932 55,065,000 1.75%
16 NORTHERN TRUST CORP 2,411,221 52,565,000 1.67%
17 VOYA INVESTMENT MANAGEMENT LLC 2,276,813 49,634,000 1.58%
18 BANK OF AMERICA CORP /DE/ 1,902,522 41,475,000 1.32%
19 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,898,100 41,379,000 1.32% Put
20 RENAISSANCE TECHNOLOGIES LLC 1,864,700 40,650,000 1.29%
21 SUSQUEHANNA INTERNATIONAL GROUP, LLP 1,697,300 37,001,000 1.18% Call
22 ARGENT CAPITAL MANAGEMENT LLC 1,683,603 36,703,000 1.17%
23 WESTFIELD CAPITAL MANAGEMENT CO LP 1,680,066 36,625,000 1.17%
24 Neuberger Berman Group LLC 1,637,439 35,696,000 1.14%
25 GOLDMAN SACHS GROUP INC 1,597,923 34,835,000 1.11%
26 FMR LLC 1,549,169 33,772,000 1.08%
27 Alyeska Investment Group, L.P. 1,487,213 32,421,000 1.03%
28 NORGES BANK 1,545,412 32,178,000 1.02%
29 HENNESSY ADVISORS INC 1,323,900 28,861,000 0.92%
30 PEREGRINE CAPITAL MANAGEMENT INC /MN/ 1,057,194 23,047,000 0.73%
31 AMERICAN CENTURY COMPANIES INC 1,048,862 22,865,000 0.73%
32 JPMORGAN CHASE & CO 1,032,162 22,500,000 0.72%
33 JACOBS LEVY EQUITY MANAGEMENT, INC 1,025,370 22,353,000 0.71%
34 MASTERS CAPITAL MANAGEMENT LLC 1,000,000 21,800,000 0.69%
35 BLACKROCK ADVISORS LLC 986,284 21,501,000 0.68%
36 GEODE CAPITAL MANAGEMENT, LLC 911,013 19,860,000 0.63%
37 BlackRock Investment Management, LLC 903,364 19,693,000 0.63%
38 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 832,951 18,158,000 0.58%
39 EMERALD MUTUAL FUND ADVISERS TRUST 829,614 18,086,000 0.58%
40 BARCLAYS PLC 825,200 17,989,000 0.57% Call
41 FRIESS ASSOCIATES LLC 776,200 16,921,000 0.54%
42 EMERALD ADVISERS, LLC 768,409 16,751,000 0.53%
43 FEDERATED HERMES, INC. 750,491 16,361,000 0.52%
44 Retirement Systems of Alabama 748,463 16,316,000 0.52%
45 SUSQUEHANNA INTERNATIONAL GROUP, LLP 723,086 15,763,000 0.50%
46 BROADVIEW ADVISORS LLC 695,675 15,166,000 0.48%
47 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 657,986 14,344,000 0.46%
48 RWC Asset Management LLP 636,915 13,885,000 0.44%
49 Blackstone Inc. 586,755 12,791,000 0.41%
50 CITADEL ADVISORS LLC 583,984 12,731,000 0.41%
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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.