What does CUSIP 19239V302 represent in this 13F holders report?

CUSIP 19239V302 is the security identifier for CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock in Q1 2018?

192 institutional investors reported CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock for Q1 2018. Use the holders table for investor-level position and value details.

COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock (CCOI)

CUSIP: 19239V302

Q1 2018 13F Holders as of 31 Mar 2018

Type / Class: Equity / Common Stock
Shares outstanding: 49,229,841
Total 13F shares: 43,064,922
Share change: -1,015,635
Total reported value: $1,869,076,830
Put/Call ratio: 99%
Price per share: $43.40
Number of holders: 192
Value change: -$44,330,300
Number of buys: 96
Number of sells: 81

Quarterly Holders Quick Answers

What is CUSIP 19239V302?
CUSIP 19239V302 identifies CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock in SEC institutional holdings data.

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Newer quarter: Q2 2018
Previous quarter: Q4 2017

Recent filing periods for CUSIP 19239V302:

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

Top shareholders of CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - 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
BlackRock Finance, Inc.	13F	Company	13%	6,288,095	$284,852,000	—	31 Dec 2017	13F
VANGUARD GROUP INC	13F	Company	9.3%	4,566,346	$206,855,000	—	31 Dec 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	5.6%	2,775,300	$125,721,000	—	31 Dec 2017	13F
JENNISON ASSOCIATES LLC	13F	Company	4.5%	2,209,271	$100,080,000	—	31 Dec 2017	13F
FMR LLC	13F	Company	4.2%	2,058,059	$93,230,000	—	31 Dec 2017	13F
BROWN ADVISORY INC	13F	Company	2.9%	1,449,370	$65,657,000	—	31 Dec 2017	13F
FIRST TRUST ADVISORS LP	13F	Company	2.9%	1,447,822	$65,586,000	—	31 Dec 2017	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	2.7%	1,327,133	$60,120,000	—	31 Dec 2017	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	2.6%	1,256,479	$56,918,000	—	31 Dec 2017	13F
MIG Capital, LLC	13F	Company	2.4%	1,181,373	$53,516,000	—	31 Dec 2017	13F
Invesco Ltd.	13F	Company	2.4%	1,159,068	$52,505,000	—	31 Dec 2017	13F
STATE STREET CORP	13F	Company	2.2%	1,080,907	$48,962,000	—	31 Dec 2017	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	2.1%	1,048,921	$47,516,000	—	31 Dec 2017	13F
Bank of New York Mellon Corp	13F	Company	1.7%	821,688	$37,223,000	—	31 Dec 2017	13F
LOOMIS SAYLES & CO L P	13F	Company	1.5%	739,923	$33,519,000	—	31 Dec 2017	13F
TimesSquare Capital Management, LLC	13F	Company	1.4%	695,565	$31,509,000	—	31 Dec 2017	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.2%	595,459	$26,975,000	—	31 Dec 2017	13F
NORTHERN TRUST CORP	13F	Company	1.2%	569,869	$25,815,000	—	31 Dec 2017	13F
Capital World Investors	13F	Company	1.1%	565,000	$25,595,000	—	31 Dec 2017	13F
CANADA LIFE ASSURANCE Co	13F	Company	1.1%	523,983	$23,709,000	—	31 Dec 2017	13F
Tekne Capital Management, LLC	13F	Company	1%	514,195	$23,293,000	—	31 Dec 2017	13F
State of New Jersey Common Pension Fund D	13F	Company	1%	500,000	$22,650,000	—	31 Dec 2017	13F
NORGES BANK	13F	Company	0.93%	458,814	$20,784,000	—	31 Dec 2017	13F
Ranger Investment Management, L.P.	13F	Company	0.88%	434,255	$19,672,000	—	31 Dec 2017	13F
Numeric Investors LLC	13F	Company	0.86%	422,232	$19,127,000	—	31 Dec 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.77%	377,427	$17,096,000	—	31 Dec 2017	13F
BOSTON FINANCIAL MANGEMENT LLC	13F	Company	0.76%	376,031	$17,034,000	—	31 Dec 2017	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.69%	341,135	$15,454,000	—	31 Dec 2017	13F
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/	13F	Company	0.68%	335,000	$15,176,000	—	31 Dec 2017	13F
Skylands Capital, LLC	13F	Company	0.66%	323,000	$14,632,000	—	31 Dec 2017	13F
EMERALD ADVISERS, LLC	13F	Company	0.65%	319,701	$14,482,000	—	31 Dec 2017	13F
Copeland Capital Management, LLC	13F	Company	0.61%	302,024	$13,682,000	—	31 Dec 2017	13F
Advisors Asset Management, Inc.	13F	Company	0.56%	273,756	$12,401,000	—	31 Dec 2017	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.55%	268,316	$12,155,000	—	31 Dec 2017	13F
ROYAL BANK OF CANADA	13F	Company	0.54%	266,169	$12,058,000	—	31 Dec 2017	13F
EMERALD MUTUAL FUND ADVISERS TRUST	13F	Company	0.53%	260,391	$11,796,000	—	31 Dec 2017	13F
Personal Capital Advisors Corp	13F	Company	0.51%	248,959	$11,278,000	—	31 Dec 2017	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.47%	232,739	$10,544,000	—	31 Dec 2017	13F
CLEARBRIDGE, LLC	13F	Company	0.44%	214,960	$9,738,000	—	31 Dec 2017	13F
Russell Investments Group, Ltd.	13F	Company	0.37%	182,408	$8,355,000	—	31 Dec 2017	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.37%	183,493	$8,312,000	—	31 Dec 2017	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.36%	175,782	$7,962,000	—	31 Dec 2017	13F
BLAIR WILLIAM & CO/IL	13F	Company	0.33%	163,355	$7,400,000	—	31 Dec 2017	13F
APG Asset Management N.V.	13F	Company	0.39%	193,600	$7,304,000	—	31 Dec 2017	13F
AMERICAN NATIONAL INSURANCE CO	13F	Company	0.33%	160,555	$7,273,000	—	31 Dec 2017	13F
HARBER ASSET MANAGEMENT LLC	13F	Company	0.31%	153,892	$6,971,000	—	31 Dec 2017	13F
MORGAN STANLEY	13F	Company	0.28%	137,374	$6,222,000	—	31 Dec 2017	13F
QS Investors, LLC	13F	Company	0.25%	121,335	$5,496,000	—	31 Dec 2017	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	0.24%	118,556	$5,371,000	—	31 Dec 2017	13F
GUGGENHEIM CAPITAL LLC	13F	Company	0.24%	117,345	$5,315,000	—	31 Dec 2017	13F

Institutional Holders of COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock (CCOI) as of Q1 2018

As of 31 Mar 2018, COGENT COMMUNICATIONS HOLDINGS, INC. - Common Stock (CCOI) was held by 192 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 43,064,922 shares. The largest 10 holders included BlackRock Inc., VANGUARD GROUP INC, RENAISSANCE TECHNOLOGIES LLC, FMR LLC, BROWN ADVISORY INC, JENNISON ASSOCIATES LLC, FIRST TRUST ADVISORS LP, DIMENSIONAL FUND ADVISORS LP, FRONTIER CAPITAL MANAGEMENT CO LLC, and Invesco Ltd.. This page lists 192 institutional shareholders reporting positions in this security for the Q1 2018 filing period.

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

Compare Q1 2018 vs Q4 2017 Across Filers

Q4 2017 holders

200

Q1 2018 holders

192

Holder diff

-8

Investor	Q4 2017 Shares	Q1 2018 Shares	Share Diff	Share Chg %	Q4 2017 Value $	Q1 2018 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.