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

Security key

171779309

Report period

Q2 2015

Institutions

277

Top holders

CIEN full security history Newer quarter: Q3 2015 Previous quarter: Q1 2015 CIENA CORP SEC filings CIENA CORP company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 171779309

Newer quarter: Q3 2015 Previous quarter: Q1 2015

Recent filing periods:

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

Ownership snapshot

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

Grouped by holder across the latest SEC ownership disclosures. Start with the largest verified stakes, then open the linked filing trail.

Lead holder

JPMORGAN CHASE & CO

13D/G signal

—

Evidence rows

Latest as of

31 Mar 2015

13F Lead comparable stake: 5.5%

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

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2015

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

277

121,574,549

Rows loaded

277

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.