Exhibit 99 Stem Announces Third Quarter 2025 Results Increased revenue by 31% YoY to $38 million Executed second consecutive quarter of positive adjusted EBITDA Increased ARR by 3$60 million, evidencing continued software-focused strategy execution Achieved third consecutive quarter of strong gross margins Refining and de-risking full-year 2025 financial and operating guidance HOUSTON – Oct. 29, 2025 – Stem, Inc. ("Stem," "we" or the "Company") (NYSE: STEM), a global leader reimagining ...