Investors File Class Action Lawsuit Against Masonite International

Attorneys Announce Opportunity for Investors with Substantial Losses to Lead Class Action Lawsuit

Published on Feb. 22, 2026

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A class action lawsuit has been filed against Masonite International Corporation, alleging the company failed to disclose that it had received multiple formal acquisition offers from Owens Corning to purchase all outstanding shares of Masonite common stock at prices significantly above the then-current market prices. The lawsuit claims Masonite had an obligation to disclose these offers or abstain from repurchasing its own stock from unsuspecting investors during the class period.

Why it matters

This lawsuit highlights concerns around corporate transparency and the obligations of public companies to disclose material information that could impact investor decisions, especially during stock buyback programs. The outcome of this case could set precedents around disclosure requirements and fiduciary duties for companies engaged in mergers and acquisitions.

The details

The lawsuit, filed by the law firm Robbins Geller Rudman & Dowd LLP, alleges that Masonite violated the Securities Exchange Act of 1934 by failing to disclose the acquisition offers it received from Owens Corning while repurchasing its own stock from investors during the class period from June 5, 2023 to February 8, 2024. The plaintiffs claim Masonite had an obligation to either disclose the offers or abstain from buying back its shares, as the offers were at prices significantly higher than what investors were receiving.

  • The class period runs from June 5, 2023 to February 8, 2024.
  • Investors have until April 7, 2026 to seek appointment as lead plaintiff in the lawsuit.

The players

Masonite International Corporation

A leading global designer, manufacturer, marketer, and distributor of interior and exterior doors and door solutions for the residential and non-residential building construction markets.

Owens Corning

The company that acquired Masonite's doors business unit in May 2024.

Robbins Geller Rudman & Dowd LLP

The law firm representing the plaintiffs in the class action lawsuit against Masonite.

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What’s next

The judge will decide on April 7, 2026 whether to allow the class action lawsuit to proceed and appoint a lead plaintiff.

The takeaway

This case highlights the importance of corporate transparency, especially when a company is engaged in stock buybacks. Investors will be watching closely to see if the court finds Masonite had a duty to disclose the acquisition offers it received from Owens Corning.