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 Q3 2020?

457 institutional investors reported CIEN - CIENA CORP - Common Stock for Q3 2020. Use the holders table for investor-level position and value details.

CIENA CORP - Common Stock (CIEN)

CUSIP: 171779309

Q3 2020 13F Holders as of 30 Sep 2020

Type / Class: Equity / Common Stock
Shares outstanding: 141,483,681
Total 13F shares: 137,169,579
Share change: -117,949
Total reported value: $5,445,472,887
Put/Call ratio: 102%
Price per share: $39.69
Number of holders: 457
Value change: -$76,893,140
Number of buys: 232
Number of sells: 259

Security key

171779309

Report period

Q3 2020

Institutions

457

Top holders

CIEN full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2020 Previous quarter: Q2 2020 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: Q4 2020 Previous quarter: Q2 2020

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 comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

VANGUARD GROUP INC

13D/G signal

—

Evidence rows

Latest as of

30 Jun 2020

13F Lead comparable stake: 10% Showing first 8 of 50 holder rows. Open remaining rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD GROUP INC	13F Company 13F	10%	$793,562,000 14,652,172 shares	—	30 Jun 2020
BlackRock Finance, Inc.	13F Company 13F	10%	$774,390,000 14,298,193 shares	—	30 Jun 2020
FMR LLC	13F Company 13F	4.4%	$334,847,000 6,182,550 shares	—	30 Jun 2020
Neuberger Berman Group LLC	13F Company 13F	2.8%	$211,178,000 3,901,319 shares	—	30 Jun 2020
STATE STREET CORP	13F Company 13F	2.7%	$207,220,000 3,826,077 shares	—	30 Jun 2020
ALLIANCEBERNSTEIN L.P.	13F Company 13F	2.5%	$191,727,000 3,540,006 shares	—	30 Jun 2020
CONGRESS ASSET MANAGEMENT CO	13F Company 13F	2.4%	$185,431,000 3,423,768 shares	—	30 Jun 2020
FIRST TRUST ADVISORS LP	13F Company 13F	1.9%	$149,204,000 2,754,882 shares	—	30 Jun 2020

Show 42 additional holder rows in the full holder list

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	1.9%	$147,265,000 2,719,084 shares	—	30 Jun 2020
Bank of New York Mellon Corp	13F Company 13F	1.9%	$144,767,000 2,672,940 shares	—	30 Jun 2020
Ion Asset Management Ltd.	13F Company 13F	1.8%	$138,866,000 2,563,984 shares	—	30 Jun 2020
Swedbank	13F Company 13F	1.7%	$130,699,000 2,413,200 shares	—	30 Jun 2020
THRIVENT FINANCIAL FOR LUTHERANS	13F Company 13F	1.7%	$128,659,000 2,375,524 shares	—	30 Jun 2020
Nuveen Asset Management, LLC	13F Company 13F	1.6%	$120,989,000 2,233,922 shares	—	30 Jun 2020
FIL Ltd	13F Company 13F	1.6%	$119,714,000 2,210,377 shares	—	30 Jun 2020
LSV ASSET MANAGEMENT	13F Company 13F	1.5%	$116,556,000 2,152,084 shares	—	30 Jun 2020
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	1.4%	$110,857,000 2,046,857 shares	—	30 Jun 2020
DEUTSCHE BANK AG\	13F Company 13F	1.3%	$99,839,000 1,843,375 shares	—	30 Jun 2020
Polar Capital LLP	13F Company 13F	1.3%	$99,083,000 1,829,458 shares	—	30 Jun 2020
Invesco Ltd.	13F Company 13F	1.3%	$97,224,000 1,795,111 shares	—	30 Jun 2020
JANUS HENDERSON GROUP PLC	13F Company 13F	1.2%	$95,122,000 1,756,479 shares	—	30 Jun 2020
BANK OF AMERICA CORP /DE/	13F Company 13F	1.2%	$93,729,000 1,730,597 shares	—	30 Jun 2020
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	1.2%	$89,044,000 1,644,296 shares	—	30 Jun 2020
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	1.2%	$88,381,000 1,631,847 shares	—	30 Jun 2020
NORGES BANK	13F Company 13F	1.1%	$84,981,000 1,569,072 shares	—	30 Jun 2020
MENORA MIVTACHIM HOLDINGS LTD.	13F Company 13F	1.1%	$83,780,000 1,546,893 shares	—	30 Jun 2020
GOLDMAN SACHS GROUP INC	13F Company 13F	0.97%	$74,411,000 1,373,913 shares	—	30 Jun 2020
D. E. Shaw & Co., Inc.	13F Company 13F	0.95%	$72,848,000 1,345,045 shares	—	30 Jun 2020
NORTHERN TRUST CORP	13F Company 13F	0.89%	$68,356,000 1,262,132 shares	—	30 Jun 2020
JPMORGAN CHASE & CO	13F Company 13F	0.87%	$66,875,000 1,234,753 shares	—	30 Jun 2020
SCHRODER INVESTMENT MANAGEMENT GROUP	13F Company 13F	0.85%	$65,032,000 1,200,742 shares	—	30 Jun 2020
BARROW HANLEY MEWHINNEY & STRAUSS LLC	13F Company 13F	0.8%	$61,106,000 1,128,250 shares	—	30 Jun 2020
ACADIAN ASSET MANAGEMENT LLC	13F Company 13F	0.8%	$61,068,000 1,127,530 shares	—	30 Jun 2020
SHAPIRO CAPITAL MANAGEMENT LLC	13F Company 13F	0.73%	$55,957,624 1,033,191 shares	—	30 Jun 2020
BNP Paribas Asset Management Holding S.A.	13F Company 13F	0.61%	$46,650,000 861,337 shares	—	30 Jun 2020
SADOFF INVESTMENT MANAGEMENT LLC	13F Company 13F	0.61%	$46,479,000 858,175 shares	—	30 Jun 2020
Trinity Street Asset Management LLP	13F Company 13F	0.58%	$44,616,000 823,797 shares	—	30 Jun 2020
Boston Partners	13F Company 13F	0.57%	$43,505,000 804,353 shares	—	30 Jun 2020
MORGAN STANLEY	13F Company 13F	0.55%	$42,437,000 783,541 shares	—	30 Jun 2020
LAZARD ASSET MANAGEMENT LLC	13F Company 13F	0.46%	$35,079,000 647,708 shares	—	30 Jun 2020
AQR CAPITAL MANAGEMENT LLC	13F Company 13F	0.45%	$34,469,000 639,152 shares	—	30 Jun 2020
PEREGRINE CAPITAL MANAGEMENT LLC	13F Company 13F	0.44%	$34,030,000 628,322 shares	—	30 Jun 2020
KORNITZER CAPITAL MANAGEMENT INC /KS	13F Company 13F	0.4%	$30,511,000 563,341 shares	—	30 Jun 2020
AMERIPRISE FINANCIAL INC	13F Company 13F	0.4%	$30,293,000 559,341 shares	—	30 Jun 2020
LOOMIS SAYLES & CO L P	13F Company 13F	0.39%	$29,582,000 546,187 shares	—	30 Jun 2020
GLENMEDE TRUST CO NA	13F Company 13F	0.38%	$28,803,000 531,805 shares	—	30 Jun 2020
CAPTRUST FINANCIAL ADVISORS	13F Company 13F	0.37%	$28,178,000 525,815 shares	—	30 Jun 2020
BECKER CAPITAL MANAGEMENT INC	13F Company 13F	0.37%	$28,195,000 520,593 shares	—	30 Jun 2020
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F Company 13F	0.35%	$26,728,000 493,506 shares	—	30 Jun 2020
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F Company 13F	0.34%	$26,036,000 480,719 shares	—	30 Jun 2020

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 Q3 2020

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

Institutions

457

137,169,579

Rows loaded

457

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.

Compare Q3 2020 vs Q2 2020 Across Filers

Q2 2020 holders

477

Q3 2020 holders

457

Holder diff

-20

Investor	Q2 2020 Shares	Q3 2020 Shares	Share Diff	Share Chg %	Q2 2020 value	Q3 2020 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend