U.S. solar panel manufacturer First Solar (FSLR.US) fell 15.3% in premarket trading to $206.In terms of earnings, First Solar reported fourth-quarter net sales of $1.68 billion, up 11.1% year-over-year, primarily driven by growth in module sales during the quarter; earnings per share were $4.84, a 32.6% increase from the previous year.Looking ahead to 2026, the company expects net sales to range between $4.9 billion and $5.2 billion, below the average analyst estimate of $6.12 billion. Following the earnings release, JPMorgan Chase. lowered its price target for First Solar from $303 to $256, while RBC Capital reduced its target price from $258 to $236.