Cogent Communications Holdings, Inc. investors who purchased common stock between Feb. 29, 2024 and May 1, 2026 have until Sept. 21, 2026 to seek appointment as lead plaintiff in a securities class action highlighted by Rosen Law Firm. The lawsuit alleges Cogent and other defendants misrepresented the quality of the company's optical wavelength backlog, with many purported orders allegedly unlikely to convert into paid business and many customers allegedly unable or unwilling to accept delivery even if service could be provisioned on time. The complaint further claims those issues meant Cogent overstated demand for its optical wavelength services, was not on track to meet revenue and margin targets, lacked the financial capacity and business fundamentals to maintain its long-standing dividend policy, and faced an undisclosed risk that David Schaeffer could be forced to sell large amounts of Cogent stock because of high-risk pledging activity. The suit says investors suffered damages when those details reached the market.