CCOI

New York, New York--(Newsfile Corp. - September 21, 2026) - Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Cogent Communications Holdings, Inc. ("Cogent" or the "Company") (NASDAQ: CCOI) on behalf of investors that purchased or otherwise acquired Cogent securities between February 29, 2024 and May 1, 2026 (the "Class Period"). CLICK HERE TO JOIN THE CASE If you are an investor in Cogent and have suffered losses, you may CLICK HERE to contact us.

SAN FRANCISCO, Sept. 21, 2026 /PRNewswire/ -- Hagens Berman Sobol Shapiro LLP —a national plaintiffs' rights law firm with a premier securities practice group—notifies investors in Cogent Communications Holdings, Inc. (NASDAQ: CCOI) of the upcoming September 21, 2026 lead plaintiff deadline in the ongoing securities class action.

NEW YORK, Sept. 21, 2026 (GLOBE NEWSWIRE) -- Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Cogent Communications Holdings, Inc. (“Cogent” or the “Company”) (NASDAQ: CCOI) on behalf of investors that purchased or otherwise acquired Cogent securities between February 29, 2024 and May 1, 2026 (the “Class Period”).

NEW YORK--(BUSINESS WIRE)---- $CCOI #CCOI--Faruqi & Faruqi, LLP, a leading national securities law firm, is investigating potential claims against Cogent Communications Holdings, Inc. ("“Cogent” or the “Company”) (NASDAQ: CCOI) and reminds investors of the September 21, 2026 deadline to seek the role of lead plaintiff in a federal securities class action that has been filed against the Company.Faruqi & Faruqi is a leading national securities law firm with offices in New York, Pennsylvania, California an.

LOS ANGELES--(BUSINESS WIRE)---- $CCOI--CCOI Investors Have Opportunity to Lead Cogent Communications Holdings, Inc. Securities Fraud Lawsuit with SBS Law.

NEW YORK, Sept. 20, 2026 /PRNewswire/ -- Why: Rosen Law Firm, a global investor rights law firm, reminds purchasers of common stock of Cogent Communications Holdings, Inc. (NASDAQ: CCOI) between February 29, 2024 and May 1, 2026, inclusive (the "Class Period"), of the important September 21, 2026 lead plaintiff deadline.

NEW YORK, Sept. 20, 2026 (GLOBE NEWSWIRE) -- Bronstein, Gewirtz & Grossman, LLC, a nationally recognized investor-rights law firm, announces that a class action lawsuit has been filed against Cogent Communications Holdings, Inc. (NASDAQ: CCOI) and certain of its officers.

New York, New York--(Newsfile Corp. - September 18, 2026) - Kaplan Fox & Kilsheimer LLP announces that a class action lawsuit has been filed against Cogent Communications Holdings, Inc. ("Cogent" or the "Company") (NASDAQ: CCOI) on behalf of investors that purchased or otherwise acquired Cogent securities between February 29, 2024 and May 1, 2026 (the "Class Period"). CLICK HERE TO JOIN THE CASE If you are an investor in Cogent and have suffered losses, you may CLICK HERE to contact us.

NEW YORK, Sept. 18, 2026 (GLOBE NEWSWIRE) -- WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of common stock of Cogent Communications Holdings, Inc. (NASDAQ: CCOI) between February 29, 2024 and May 1, 2026, inclusive (the “Class Period”), of the important September 21, 2026 lead plaintiff deadline.

San Francisco, California--(Newsfile Corp. - September 18, 2026) - Hagens Berman Sobol Shapiro LLP -a national plaintiffs' rights law firm with a premier securities practice group-notifies investors in Cogent Communications Holdings, Inc. (NASDAQ: CCOI) of the upcoming September 21, 2026 lead plaintiff deadline in the ongoing securities class action. This alert follows Cogent's recent Q2 2026 financial disclosures, which underscore ongoing operational contractions as the class action moves forward.