First Solar, Inc., a US-based PV module manufacturer, is under investigation by Pomerantz LLP after reporting Q4 and full-year results ended December 31, 2025. On February 24, 2026, the company reported earnings that missed expectations and issued lower-than-expected FY 2026 revenue guidance, citing customer headwinds including permitting delays under the Trump administration. Baird Research subsequently downgraded the stock from 'Outperform' to 'Neutral', pointing to uncertainty in the forward outlook. On February 25, 2026, shares fell $33.09, or 13.61%, to close at $210.12. After the decline, Pomerantz LLP said it is examining whether First Solar and certain officers or directors engaged in securities fraud or other unlawful business practices.