Amprius Technologies, Inc. (NYSE: AMPX) reported fourth‑quarter and full‑year 2025 financial results that surpassed revenue expectations and marked a significant step toward profitability. Q4 revenue rose to $25.2 million, a 137% increase from $10.6 million in the same period a year earlier, beating the consensus estimate of $23.1 million. The company’s GAAP net loss for the quarter was $24.4 million, compared with a $11.4 million loss in Q4 2024, while adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) turned positive at $1.8 million, a turnaround from a $4.7 million loss in Q4 2024.
The full‑year 2025 results show revenue of $73.0 million, up 202% from $24.2 million in 2024, and a net loss of $44.0 million. After excluding one‑time charges, the adjusted net loss was $21.5 million. Gross profit climbed to $8.3 million, giving the company an 11% gross margin versus a 76% loss margin in 2024. Q4 gross margin reached 24%, reflecting a higher mix of higher‑margin silicon‑anode products and improved operational leverage as the company scales its SiCore platform.
Management attributed the revenue growth to an expanded customer base—now over 550 customers—and increased demand from aerospace and defense customers. The loss was largely driven by a $22.5 million impairment charge related to a Colorado facility and other one‑time expenses. The company reiterated its 2026 outlook, projecting at least $125 million in revenue, a net loss of less than $8 million, a net loss per share under $0.06, and adjusted EBITDA of at least $4 million, signaling confidence in continued scaling and margin expansion.
Tom Stepien, CEO, said, "For Amprius, 2025 marked a year of meaningful commercial progress, as we expanded our customer base to over 550, increased revenue by over 3x, and advanced the adoption of our silicon anode batteries across multiple end markets." He added, "Growing demand from existing customers, new program wins, and improved execution across our manufacturing partners drove strong momentum throughout the year. Looking ahead to 2026, we plan to leverage our enhanced supply chain to scale production and meet accelerating market demand, supporting continued accretive growth." Ricardo C. Rodriguez, CFO, noted, "Last year presented early evidence of the potential of our business model, with the revenue base steadily increasing and margins improving. In 2026, our team is energized to continue delivering what we believe is a meaningful step function in growth and profitability with a clean balance sheet and a scale‑enabling cost structure."
The company’s Q3 2025 revenue of $21.4 million and net loss of $3.9 million provide a sequential context, showing that the Q4 growth was not a one‑off spike but part of an accelerating trend. The positive adjusted EBITDA and improved gross margin underscore the effectiveness of the company’s capital‑light manufacturing strategy and the commercial viability of its silicon‑anode technology.
The results demonstrate that Amprius is moving from a development‑stage company toward a growth‑stage company with a clear path to profitability, driven by strong demand in aerospace and defense, a scalable manufacturing model, and disciplined cost management.
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