Calix, Inc.

Background

Company Name	Calix, Inc.
Stock Symbol	CALX
Class Period	January 28, 2026 to April 21, 2026
Lead Plaintiff Motion Deadline	July 27, 2026

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If you suffered a loss on your Calix, Inc. investments or would like to inquire about joining an action to recover your loss under the federal securities laws, please complete the form below. Please note that submission of this form does not by itself form an attorney-client relationship nor does filling out this form mean you have joined any lawsuit.

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Shares Purchased

Number of Shares	Buy Date	Price Per Share	Add
Purchased quantity	Purchased month Purchased day Purchased year

Shares Sold

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	Sold month Sold day Sold year

Additional Comments

Background

On April 21, 2026, after the market closed, Calix reported results for the first quarter of 2026 earnings, including that “[n]on-GAAP gross margin was 57.2%, a decrease of 80 basis points sequentially.” Further, the Company reported gross margin guidance for the second quarter of 2026 is “55.8% (at the midpoint) is down 140 basis points from the previous quarter. This decline is primarily due the increase in memory component costs.”

In the accompanying earnings call held on the same date, the Company’s Chief Financial Officer, Cory Sindelar, 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.” Sindelar further revealed “reflecting the effects of higher memory component costs,” “[f]or the year, we expect our non-GAAP gross margin to decline between 50 and 150 basis points.”

On this news, Calix’s stock price fell $6.93, or 13.98% to close at $42.65 per share on April 22, 2026, on unusually heavy trading volume.

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors: (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.

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