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 2020?

477 institutional investors reported CIEN - CIENA CORP - Common Stock for Q2 2020. Use the holders table for investor-level position and value details.

CIENA CORP - Common Stock (CIEN)

CUSIP: 171779309

Q2 2020 13F Holders as of 30 Jun 2020

Security type / class: Equity / Common Stock
Shares outstanding: 141,483,681
Total 13F shares: 137,023,504
Share change: -219,542
Total reported value: $7,420,001,250
Put/Call ratio: 119%
Reported price per share: $54.16
Number of holders: 477
Value change: +$30,338,737
Number of buys: 256
Number of sells: 221

Security key

171779309

Report period

Q2 2020

Institutions

477

Top holders

CIEN full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2020 Previous quarter: Q1 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: Q3 2020 Previous quarter: Q1 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

31 Mar 2020

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

Rank 1 holder

VANGUARD GROUP INC

13F

Ownership: 10%
Position: $589.97M

13F

Rank 2 holder

BlackRock Finance, Inc.

13F

Ownership: 10%
Position: $585.24M

13F

Rank 3 holder

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD GROUP INC	13F Company 13F	10%	$589,974,000 14,819,764 shares	—	31 Mar 2020
BlackRock Finance, Inc.	13F Company 13F	10%	$585,241,000 14,700,846 shares	—	31 Mar 2020
Neuberger Berman Group LLC	13F Company 13F	3%	$170,264,000 4,277,405 shares	—	31 Mar 2020
ALLIANCEBERNSTEIN L.P.	13F Company 13F	3%	$169,427,000 4,255,893 shares	—	31 Mar 2020
STATE STREET CORP	13F Company 13F	2.7%	$150,619,000 3,783,454 shares	—	31 Mar 2020
FIRST TRUST ADVISORS LP	13F Company 13F	2.3%	$132,013,000 3,316,088 shares	—	31 Mar 2020
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	2.3%	$131,793,000 3,310,536 shares	—	31 Mar 2020
THRIVENT FINANCIAL FOR LUTHERANS	13F Company 13F	2.1%	$118,777,000 2,983,621 shares	—	31 Mar 2020

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Bank of New York Mellon Corp	13F Company 13F	1.9%	$105,647,000 2,653,764 shares	—	31 Mar 2020
Ion Asset Management Ltd.	13F Company 13F	1.9%	$104,522,000 2,625,524 shares	—	31 Mar 2020
Invesco Ltd.	13F Company 13F	1.8%	$102,977,000 2,586,726 shares	—	31 Mar 2020
FIL Ltd	13F Company 13F	1.7%	$98,078,000 2,463,656 shares	—	31 Mar 2020
GOLDMAN SACHS GROUP INC	13F Company 13F	1.7%	$96,911,000 2,434,334 shares	—	31 Mar 2020
CONGRESS ASSET MANAGEMENT CO	13F Company 13F	1.7%	$94,030,000 2,361,960 shares	—	31 Mar 2020
D. E. Shaw & Co., Inc.	13F Company 13F	1.6%	$91,987,000 2,310,653 shares	—	31 Mar 2020
LSV ASSET MANAGEMENT	13F Company 13F	1.6%	$87,318,000 2,193,387 shares	—	31 Mar 2020
BANK OF AMERICA CORP /DE/	13F Company 13F	1.5%	$86,088,000 2,162,443 shares	—	31 Mar 2020
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	1.5%	$82,048,000 2,061,017 shares	—	31 Mar 2020
NORGES BANK	13F Company 13F	1.5%	$81,694,000 2,052,099 shares	—	31 Mar 2020
Nuveen Asset Management, LLC	13F Company 13F	1.3%	$73,342,000 1,842,311 shares	—	31 Mar 2020
BARROW HANLEY MEWHINNEY & STRAUSS LLC	13F Company 13F	1.2%	$67,484,000 1,695,154 shares	—	31 Mar 2020
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	1.2%	$66,140,000 1,661,114 shares	—	31 Mar 2020
JANUS HENDERSON GROUP PLC	13F Company 13F	1.2%	$66,119,000 1,661,065 shares	—	31 Mar 2020
DEUTSCHE BANK AG\	13F Company 13F	1.1%	$64,543,000 1,621,278 shares	—	31 Mar 2020
FMR LLC	13F Company 13F	1.1%	$62,369,000 1,566,654 shares	—	31 Mar 2020
SCHRODER INVESTMENT MANAGEMENT GROUP	13F Company 13F	1.1%	$70,534,000 1,566,384 shares	—	31 Mar 2020
SHAPIRO CAPITAL MANAGEMENT LLC	13F Company 13F	1.1%	$61,370,459 1,541,584 shares	—	31 Mar 2020
Boston Partners	13F Company 13F	1.1%	$61,080,000 1,533,827 shares	—	31 Mar 2020
MENORA MIVTACHIM HOLDINGS LTD.	13F Company 13F	1.1%	$60,205,000 1,512,299 shares	—	31 Mar 2020
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.99%	$55,492,000 1,393,910 shares	—	31 Mar 2020
NORTHERN TRUST CORP	13F Company 13F	0.93%	$52,419,000 1,316,735 shares	—	31 Mar 2020
AQR CAPITAL MANAGEMENT LLC	13F Company 13F	0.91%	$51,473,000 1,292,967 shares	—	31 Mar 2020
JPMORGAN CHASE & CO	13F Company 13F	0.87%	$48,728,000 1,224,008 shares	—	31 Mar 2020
AMERIPRISE FINANCIAL INC	13F Company 13F	0.74%	$41,594,000 1,044,774 shares	—	31 Mar 2020
BNP Paribas Asset Management Holding S.A.	13F Company 13F	0.73%	$41,359,000 1,038,920 shares	—	31 Mar 2020
ACADIAN ASSET MANAGEMENT LLC	13F Company 13F	0.69%	$38,827,000 975,304 shares	—	31 Mar 2020
SADOFF INVESTMENT MANAGEMENT LLC	13F Company 13F	0.62%	$34,990,000 878,925 shares	—	31 Mar 2020
Holocene Advisors, LP	13F Company 13F	0.61%	$34,266,000 860,744 shares	—	31 Mar 2020
Trinity Street Asset Management LLP	13F Company 13F	0.58%	$32,795,000 823,797 shares	—	31 Mar 2020
PEREGRINE CAPITAL MANAGEMENT LLC	13F Company 13F	0.54%	$30,558,000 767,594 shares	—	31 Mar 2020
EMERALD ADVISERS, LLC	13F Company 13F	0.54%	$30,225,000 759,225 shares	—	31 Mar 2020
BECKER CAPITAL MANAGEMENT INC	13F Company 13F	0.54%	$30,207,000 758,791 shares	—	31 Mar 2020
Cavalry Management Group, LLC	13F Company 13F	0.52%	$29,327,000 736,669 shares	—	31 Mar 2020
GLENMEDE TRUST CO NA	13F Company 13F	0.47%	$28,651,000 671,142 shares	—	31 Mar 2020
EMERALD MUTUAL FUND ADVISERS TRUST	13F Company 13F	0.46%	$26,163,000 657,189 shares	—	31 Mar 2020
LAZARD ASSET MANAGEMENT LLC	13F Company 13F	0.44%	$24,835,000 623,842 shares	—	31 Mar 2020
ROTHSCHILD & CO ASSET MANAGEMENT US INC.	13F Company 13F	0.41%	$23,250,000 584,017 shares	—	31 Mar 2020
North Growth Management Ltd.	13F Company 13F	0.37%	$20,782,000 522,000 shares	—	31 Mar 2020
SMITH ASSET MANAGEMENT GROUP LP	13F Company 13F	0.36%	$20,399,000 510,851 shares	—	31 Mar 2020
CAPTRUST FINANCIAL ADVISORS	13F Company 13F	0.36%	$20,353,000 509,199 shares	—	31 Mar 2020

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 2020

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

Institutions

477

137,023,504

Rows loaded

477

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. The marker flags a reported price that failed the local validity check.

Compare Q2 2020 vs Q1 2020 Across Filers

Q1 2020 holders

407

Q2 2020 holders

477

Holder diff

Investor	Q1 2020 Shares	Q2 2020 Shares	Share Diff	Share Chg %	Q1 2020 value	Q2 2020 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

CIENA CORP - Common Stock (CIEN)

Q2 2020 13F Holders as of 30 Jun 2020

Holder history for CUSIP 171779309

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

VANGUARD GROUP INC

BlackRock Finance, Inc.

Neuberger Berman Group LLC

Institutional holders as of Q2 2020

Compare Q2 2020 vs Q1 2020 Across Filers