COGENT COMMUNICATIONS HOLDINGS, INC. - COMMON STOCK, PAR VALUE $0.001 PER SHARE (CCOI)

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

CUSIP 19239V302 is the security identifier for CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - COMMON STOCK, PAR VALUE $0.001 PER SHARE used to aggregate holder disclosures.

Q: How many institutions held CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - COMMON STOCK, PAR VALUE $0.001 PER SHARE in Q1 2023?

268 institutional investors reported CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - COMMON STOCK, PAR VALUE $0.001 PER SHARE for Q1 2023. Use the holders table for investor-level position and value details.

CUSIP: 19239V302

Q1 2023 13F Holders as of 31 Mar 2023

Security type / class: Equity / COMMON STOCK, PAR VALUE $0.001 PER SHARE
Total 13F shares: 41,862,360
Total 13F value: $2,667,557,312
Share change: +704,122
Put/Call ratio: 46%
SEC-reported price per share: $63.72
Number of holders: 268
Value change: +$50,205,576
Number of buys: 130
Number of sells: 123
Shares outstanding: 50,113,196

Security key

19239V302

Report period

Q1 2023

Institutions

268

Top holders

CCOI full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2023 Previous quarter: Q4 2022 COGENT COMMUNICATIONS HOLDINGS, INC. SEC filings COGENT COMMUNICATIONS HOLDINGS, INC. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 19239V302

Newer quarter: Q2 2023 Previous quarter: Q4 2022

Recent filing periods:

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

Ownership snapshot

Top reported holders of CCOI - COGENT COMMUNICATIONS HOLDINGS, INC. - COMMON STOCK, PAR VALUE $0.001 PER SHARE (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.

Comparable stake leader

BlackRock Finance, Inc.

Disclosed value leader

BlackRock Finance, Inc.

Comparable rows

15/15

Latest evidence

31 Dec 2022

13F Lead comparable stake: 15% Showing 1-6 of 15 holder rows.

Quick read

BlackRock Finance, Inc. leads the comparable SEC ownership view at 15%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock Finance, Inc.'s linked filing trail.

Comparable ownership Top 5

BlackRock Finance, Inc. 15%

VANGUARD GROUP INC 10%

VAUGHAN NELSON INVESTMENT MANAGEM... 4.1%

RENAISSANCE TECHNOLOGIES LLC 3.6%

STATE STREET CORP 3.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BlackRock Finance, Inc.	13F Company 13F	15%	$426,611,813 7,473,928 shares	—	31 Dec 2022
VANGUARD GROUP INC	13F Company 13F	10%	$298,301,850 5,226,031 shares	—	31 Dec 2022
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	13F Company 13F	4.1%	$116,405,000 2,039,330 shares	—	31 Dec 2022
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	3.6%	$103,979,000 1,821,638 shares	—	31 Dec 2022
STATE STREET CORP	13F Company 13F	3.6%	$102,621,164 1,797,848 shares	—	31 Dec 2022
BROWN ADVISORY INC	13F Company 13F	2.5%	$70,834,160 1,240,963 shares	—	31 Dec 2022

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 Q1 2023

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

Institutions

268

41,862,360

Rows available

268

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-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 did not pass the local price check.

Compare Q1 2023 vs Q4 2022 Across Filers

Q4 2022 holders

279

Q1 2023 holders

268

Holder diff

-11

Investor	Q4 2022 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q4 2022 value	Q1 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend