Tigo Energy Faces Lawsuit Over EG4 Partnership Disclosures; Stock Falls
Solar solutions provider Tigo Energy (NASDAQ: TYGO) is the subject of a class-action lawsuit alleging misleading statements about its EG4 partnership. The suit covers investors who acquired shares between February 24 and August 4, 2026.

Tigo Energy, a company providing solar and energy storage solutions, is facing a class-action lawsuit regarding its disclosures about a partnership with EG4 Electronics. The lawsuit was filed on behalf of investors who purchased or acquired Tigo Energy securities between February 24, 2026, and August 4, 2026.
The complaint alleges that Tigo Energy misled investors regarding the viability and revenue potential of its EG4 partnership. The company had announced the manufacturing and marketing deal in August 2025, aiming to produce Tigo-optimized inverters and Module Level Power Electronics (MLPE). In May 2026, Tigo issued financial guidance for the fiscal year that appeared to rely on revenue from this collaboration.
However, on August 4, 2026, Tigo Energy reported its second-quarter financial results, which fell short of its previously issued guidance. The company also significantly lowered its full-year 2026 revenue forecast. The chief financial officer cited a shift in the "U.S. optimized inverter partner's" go-to-market launch to the fourth quarter, among other factors, as reasons for the revised outlook.
Following this announcement, Tigo Energy's stock price dropped approximately 37%, from $2.04 on August 4 to $1.29 on August 5, 2026. Shareholder rights law firm Robbins LLP is reminding investors who suffered losses during the specified period that they may be eligible to participate in the lawsuit and should contact the firm for more information.