Rosen Law Firm is reminding purchasers of Cogent Communications Holdings common stock during the February 29, 2024, through May 1, 2026, Class Period that September 21, 2026, is the deadline to seek appointment as lead plaintiff in a securities class action. The lawsuit alleges defendants misrepresented the quality of Cogent's optical wavelength backlog, customer demand, revenue and margin prospects, dividend capacity, and risks linked to David Schaeffer's pledged Cogent shares. Investors who purchased shares during the Class Period may be eligible to participate without paying out-of-pocket fees or costs under a contingency fee arrangement. The case has been filed, but no class has been certified, and investors may retain counsel, remain absent class members, or seek lead plaintiff status. Rosen provided an online registration page and contact details for Phillip Kim, Esq.