NEW YORK, Aug. 03, 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 .