Turtle Creek Asset Management Inc.

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

Symbol: CCOI on Nasdaq
Investment type: Equity / Common Stock
Latest Disclosed Shares Owned: 4,036,847 shares
Security Ownership %: 8.2%

Shares, Excluding Options vs Price

Value, Excluding Options

Turtle Creek Asset Management Inc. ownership in COGENT COMMUNICATIONS HOLDINGS, INC. Common Stock (CCOI)

17 Feb 2026 - Turtle Creek Asset Management Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,036,847 shares of COGENT COMMUNICATIONS HOLDINGS, INC. Common Stock (CCOI). This represents 8.2% ownership of the company. In their previous filing dated 14 Nov 2025, Turtle Creek Asset Management Inc. had reported owning 4,603,933 shares, indicating a decrease of +12%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Turtle Creek Asset Management Inc.	8.2%	-13%	$87,034,421	4,036,847	-567,086	-12%	$21.56	13G/A	31 Dec 2025	17 Feb 2026, 16:26
Turtle Creek Asset Management Inc.	9.4%	+62%	$176,560,831	4,603,933	+1,811,222	+65%	$38.35	13G/A	30 Sep 2025	14 Nov 2025, 16:50
Turtle Creek Asset Management Inc.	5.7%		$140,557,145	2,792,711			$50.33	13G	30 Jun 2025	14 Aug 2025, 17:31

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025	3.8%	-0.54%	$87,034,421	4,036,847	-567,086	-12%	$21.56	Q4 2025
30 Sep 2025	5.3%	+2.1%	$176,560,831	4,603,933	+1,811,222	+65%	$38.35	Q3 2025
30 Jun 2025	3.9%	+3.7%	$134,636,597	2,792,711	+2,631,134	+1628%	$48.21	Q2 2025
31 Mar 2025	0.28%	+0.06%	$9,906,286	161,577	+36,377		$61.31	Q1 2025
31 Dec 2024	0.25%	+0.25%	$9,649,164	125,200	+125,200	NEW	$77.07	Q4 2024
31 Mar 2020		-0.05%	$0	0	-9,700	-100%	$26.51	Q1 2020
31 Dec 2019	0.05%	-0.04%	$638,000	9,700	-7,500	-44%	$65.77	Q4 2019
30 Sep 2019	0.07%	-0.02%	$948,000	17,200	-5,700	-25%	$55.12	Q3 2019
30 Jun 2019	0.1%	-0.06%	$1,359,000	22,900	-12,400	-35%	$59.34	Q2 2019
31 Mar 2019	0.16%	-0.02%	$1,915,000	35,300	-3,400	-8.8%	$54.25	Q1 2019
31 Dec 2018	0.15%	+0.02%	$1,750,000	38,700	+5,250	+16%	$45.22	Q4 2018
30 Sep 2018	0.15%	+0%	$1,867,000	33,450	+900	+2.8%	$55.81	Q3 2018
30 Jun 2018	0.16%	-0.03%	$1,738,000	32,550	-7,050	-18%	$53.39	Q2 2018
31 Mar 2018	0.16%	+0.03%	$1,719,000	39,600	+8,000	+25%	$43.41	Q1 2018
31 Dec 2017	0.13%	+0.13%	$1,431,000	31,600	+31,600	NEW	$45.28	Q4 2017

* 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.