LOS ANGELES, Aug. 6, 2026 /PRNewswire/ -- The DJS Law Group reminds investors of a class action lawsuit against Cogent Communications Holdings, Inc. ("Cogent" or "the Company") (NASDAQ: CCOI) violations of §§10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission. Shareholders who purchased shares of CCOI during the class period listed are encouraged to contact the firm regarding possible lead plaintiff appointments.