Grabar Law Office is investigating claims on behalf of shareholders of Calix, Inc. (NYSE: CALX). The investigation concerns whether certain officers and directors breached the fiduciary duties they owed to the company.

Calix, Inc. (NYSE: CALX), together with its subsidiaries, engages in the provision of cloud and software platforms, and systems and services in the United States, rest of Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company cloud and software platforms, and systems and services enable broadband service providers (BSPs) to provide a range of services. It offers Calix Cloud platform comprising Calix Engagement Cloud, Calix Operations Cloud, and Calix Service Cloud, which are configurable to display role-based insights and enable BEPs to anticipate and target new revenue-generating services and applications through mobile application, such as CommandIQ for residents and CommandWorx for businesses; Calix Intelligent Access, an access network solution for automated and intelligent networks; and Calix Unlimited Subscriber, a solution for subscriber managed services.

WHY? As alleged in a recently filed securities fraud class action complaint, Calix, Inc. (NYSE: CALX), through certain of its executives, violated federal securities laws by making false and/or misleading statements and/or failing to disclose that: (1) the Company's first quarter margins had significantly benefited from advanced purchasing of memory components; (2) that the Company's advanced supply of memory components was dwindling; (3) that, as a result, the Company was experiencing negative margin pressure as it was forced to purchase memory components at rising market prices; and (4) that, as a result of the foregoing, Defendants' positive statements about the Company's margins, business, operations, and prospects were materially misleading and/or lacked a reasonable basis.

On April 21, 2026, Calix reported results for the first quarter of 2026 earnings, including that "Non-GAAP gross margin was 57.2%, down 80 basis points sequentially." Further, the Company reported "gross margin guidance for the second quarter of 2026 is between 54.25% and 57.25%" and "[f]or the year, we expect our non-GAAP gross margin to decline between 50 and 150 basis points."

In the accompanying earnings call, the Company's CFO stated "advanced purchasing had allowed us to avoid higher memory component costs during the first quarter. However, that advanced supply has run its course, and we now face market prices."

WHAT CAN YOU DO NOW? If you purchased Calix, Inc. (NYSE: CALX), shares prior to January 28, 2026, and still hold shares today, you are encouraged to contact Joshua Grabar at jgrabar@grabarlaw.com, or call 267-507-6085.  You can seek corporate reforms, the return of funds back to the company, and a court approved incentive award at no cost to you whatsoever.  Alternatively, if you purchased Calix, Inc. shares between January 28, 2026, and April 21, 2026, you can participate in the class action.