INVESTOR NOTICE: Cogent Communications Holdings, Inc. Investors with Substantial Losses Have Opportunity to Lead Class Action Lawsuit, Robbins Geller Rudman & Dowd LLP Announces - CCOI

SAN DIEGO, July 31, 2026 /PRNewswire/ -- Robbins Geller Rudman & Dowd LLP announces that purchasers of Cogent Communications Holdings, Inc. (NASDAQ: CCOI) common stock between February 29, 2024 and May 1, 2026 (the "Class Period"), have until September 21, 2026 to seek appointment as lead...