Grabar Law Office said it is investigating potential shareholder claims involving Cogent Communications, Primoris Services, Roblox and Symbotic, focusing on whether officers and directors breached fiduciary duties. The notices tie Cogent, Primoris and Roblox to recently filed securities fraud class actions over alleged misstatements about Cogent's optical wavelength backlog, demand, revenue, margins, dividend sustainability and David Schaeffer's stock pledging; Primoris' estimating, cost-to-complete forecasting and oversight for fixed-price renewable energy projects; and Roblox's 2026 bookings growth outlook linked to age-checking technology. Separate Hagens Berman updates added that Cogent investors who bought shares between Feb. 29, 2024 and May 1, 2026 face a Sept. 21, 2026 lead plaintiff deadline, while Primoris' pending case was supplemented with Q2 2026 details including a $24.2 million net loss, a 10.6% revenue decline to $1.69 billion, adjusted EBITDA of $11.4 million, a $200 million negative cash-flow impact across six renewable projects and a June 22, 2026 disclosure that renewables revenue would be cut by 30%, or about $900 million. For Symbotic, Grabar cited a July 23, 2026 ruling by Chief Judge Denise J. Casper allowing key Section 10(b), Rule 10b-5 and related Section 20(a) claims to proceed.