What does CUSIP 171779309 represent in this 13F holders report?

CUSIP 171779309 is the security identifier for CIEN - CIENA CORP - Common Stock used to aggregate holder disclosures.

How many institutions held CIEN - CIENA CORP - Common Stock in Q2 2015?

277 institutional investors reported CIEN - CIENA CORP - Common Stock for Q2 2015. Use the holders table for investor-level position and value details.

CIENA CORP - Common Stock (CIEN)

CUSIP: 171779309

Q2 2015 13F Holders as of 30 Jun 2015

Type / Class: Equity / Common Stock
Shares outstanding: 141,483,681
Total 13F shares: 121,574,549
Share change: +5,556,536
Total reported value: $2,878,353,382
Put/Call ratio: 111%
Price per share: $23.68
Number of holders: 277
Value change: +$149,867,111
Number of buys: 160
Number of sells: 108

Quarterly Holders Quick Answers

What is CUSIP 171779309?
CUSIP 171779309 identifies CIEN - CIENA CORP - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q3 2015
Previous quarter: Q1 2015

Recent filing periods for CUSIP 171779309:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of CIEN - CIENA CORP - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
JPMORGAN CHASE & CO	13F	Company	5.5%	7,748,524	$149,625,000	—	31 Mar 2015	13F
VANGUARD GROUP INC	13F	Company	5.2%	7,365,475	$142,227,000	—	31 Mar 2015	13F
Invesco Ltd.	13F	Company	4.9%	6,944,385	$134,096,000	—	31 Mar 2015	13F
PLATINUM INVESTMENT MANAGEMENT LTD	13F	Company	4.6%	6,563,925	$126,749,000	—	31 Mar 2015	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	4.4%	6,268,326	$121,041,000	—	31 Mar 2015	13F
Bank of New York Mellon Corp	13F	Company	4.4%	6,166,582	$119,075,000	—	31 Mar 2015	13F
BlackRock Fund Advisors	13F	Company	3.8%	5,335,901	$103,036,000	—	31 Mar 2015	13F
STATE STREET CORP	13F	Company	2.6%	3,678,524	$71,030,000	—	31 Mar 2015	13F
PARNASSUS INVESTMENTS, LLC	13F	Company	2.6%	3,625,000	$69,999,000	—	31 Mar 2015	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	2.6%	3,610,124	$69,711,000	—	31 Mar 2015	13F
BlackRock Institutional Trust Company, N.A.	13F	Company	2.2%	3,083,596	$59,544,000	—	31 Mar 2015	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	1.9%	2,711,710	$52,363,000	—	31 Mar 2015	13F
Apex Capital Management	13F	Company	1.6%	2,247,968	$43,408,000	—	31 Mar 2015	13F
FMR LLC	13F	Company	1.6%	2,231,100	$43,083,000	—	31 Mar 2015	13F
TEACHERS ADVISORS, LLC	13F	Company	1.5%	2,176,179	$42,022,000	—	31 Mar 2015	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	1.5%	2,088,500	$40,037,000	—	31 Mar 2015	13F
Carlson Capital, L.P.	13F	Company	1.3%	1,800,000	$34,758,000	—	31 Mar 2015	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	1.2%	1,760,872	$34,002,000	—	31 Mar 2015	13F
NORTHERN TRUST CORP	13F	Company	1.2%	1,695,355	$32,737,000	—	31 Mar 2015	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	1.2%	1,682,075	$32,481,000	—	31 Mar 2015	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	1.2%	1,669,470	$32,237,000	—	31 Mar 2015	13F
Alyeska Investment Group, L.P.	13F	Company	1.1%	1,525,900	$29,465,000	—	31 Mar 2015	13F
FIL Ltd	13F	Company	0.93%	1,320,559	$25,500,000	—	31 Mar 2015	13F
Neuberger Berman Group LLC	13F	Company	0.89%	1,253,197	$24,199,000	—	31 Mar 2015	13F
KING LUTHER CAPITAL MANAGEMENT CORP	13F	Company	0.86%	1,215,690	$23,475,000	—	31 Mar 2015	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.84%	1,193,116	$23,039,000	—	31 Mar 2015	13F
BTG Pactual Global Asset Management Ltd	13F	Company	0.81%	1,150,000	$22,206,000	—	31 Mar 2015	13F
CITADEL ADVISORS LLC	13F	Company	0.74%	1,053,935	$20,351,000	—	31 Mar 2015	13F
BARCLAYS PLC	13F	Company	0.61%	857,400	$16,291,000	—	31 Mar 2015	13F
FEDERATED HERMES, INC.	13F	Company	0.59%	837,476	$16,173,000	—	31 Mar 2015	13F
BROADVIEW ADVISORS LLC	13F	Company	0.51%	723,475	$13,970,000	—	31 Mar 2015	13F
CRAMER ROSENTHAL MCGLYNN LLC	13F	Company	0.5%	707,265	$13,657,000	—	31 Mar 2015	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	0.45%	632,469	$12,213,000	—	31 Mar 2015	13F
LOOMIS SAYLES & CO L P	13F	Company	0.44%	625,003	$12,069,000	—	31 Mar 2015	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.43%	601,637	$11,617,000	—	31 Mar 2015	13F
MANAGED ACCOUNT ADVISORS LLC	13F	Company	0.42%	590,007	$11,394,000	—	31 Mar 2015	13F
ROYCE & ASSOCIATES LP	13F	Company	0.41%	580,500	$11,209,000	—	31 Mar 2015	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.4%	568,967	$10,986,000	—	31 Mar 2015	13F
GENERAL AMERICAN INVESTORS CO INC	13F	Company	0.4%	566,000	$10,929,000	—	31 Mar 2015	13F
BlackRock Investment Management, LLC	13F	Company	0.39%	549,919	$10,619,000	—	31 Mar 2015	13F
ING GROEP NV	13F	Company	0.36%	511,959	$9,876,000	—	31 Mar 2015	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.36%	510,760	$9,863,000	—	31 Mar 2015	13F
State of New Jersey Common Pension Fund D	13F	Company	0.35%	500,000	$9,655,000	—	31 Mar 2015	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.33%	473,642	$9,146,000	—	31 Mar 2015	13F
NORGES BANK	13F	Company	0.31%	433,472	$8,370,000	—	31 Mar 2015	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.3%	430,459	$8,312,000	—	31 Mar 2015	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.29%	413,147	$7,977,000	—	31 Mar 2015	13F
Tygh Capital Management, Inc.	13F	Company	0.29%	407,930	$7,877,000	—	31 Mar 2015	13F
SIT INVESTMENT ASSOCIATES INC	13F	Company	0.28%	395,910	$7,645,000	—	31 Mar 2015	13F
CAXTON ASSOCIATES LP	13F	Company	0.28%	390,000	$7,531,000	—	31 Mar 2015	13F

Institutional Holders of CIENA CORP - Common Stock (CIEN) as of Q2 2015

As of 30 Jun 2015, CIENA CORP - Common Stock (CIEN) was held by 277 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 121,574,549 shares. The largest 10 holders included VANGUARD GROUP INC, WELLINGTON MANAGEMENT GROUP LLP, PLATINUM INVESTMENT MANAGEMENT LTD, Invesco Ltd., BlackRock Fund Advisors, JPMORGAN CHASE & CO, Bank of New York Mellon Corp, SYSTEMATIC FINANCIAL MANAGEMENT LP, TIAA CREF INVESTMENT MANAGEMENT LLC, and STATE STREET CORP. This page lists 277 institutional shareholders reporting positions in this security for the Q2 2015 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q2 2015 vs Q1 2015 Across Filers

Q1 2015 holders

243

Q2 2015 holders

277

Holder diff

Investor	Q1 2015 Shares	Q2 2015 Shares	Share Diff	Share Chg %	Q1 2015 Value $	Q2 2015 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.