SES AI Corp Q4 2025 Shareholder Letter: Key Investor Highlights and Strategic Update

Summary: SES AI Corp Delivers Transformational Growth in 2025, Sets Ambitious 2026 Outlook

SES AI Corp (NYSE: SES) has published its Q4 2025 shareholder letter, highlighting a year of extraordinary growth and strategic transformation. The company reported a nearly 10-fold increase in annual revenue, expanded its revenue-generating business units, and provided detailed guidance and strategic priorities for 2026.

Key Financial Highlights

• Record Revenue Growth: Full-year 2025 revenue surged to \$21 million, up from just over \$2 million in 2024. Q4 revenue was \$4.6 million, representing a 124% year-over-year increase.
• Gross Margin Dynamics: Q4 2025 GAAP gross margin was 11.3% (non-GAAP: 11.7%), with full-year margins at 53.8% (non-GAAP: 55.7%). Margins are expected to fluctuate as product mix evolves.
• Expense Management: Q4 operating expenses dropped 40% YoY on a GAAP basis (to \$18.2M) and 44% on a non-GAAP basis (to \$13.5M). Full-year GAAP operating expenses declined 15% to \$93.9M; non-GAAP fell 11% to \$73.0M, reflecting aggressive cost optimization.
• Net Loss Improvement: Q4 2025 GAAP net loss was \$17.0M (\$0.05/share), a 51% YoY improvement. Non-GAAP net loss was \$11.8M (\$0.04/share). Full-year GAAP net loss improved to \$73.0M (\$0.22/share); non-GAAP net loss was \$53.2M (\$0.16/share).
• Adjusted EBITDA: Loss narrowed to \$13.8M in Q4 2025 from \$23.2M in Q4 2024. Full-year Adjusted EBITDA loss improved to \$62.6M from \$81.5M.
• Strong Liquidity: Ended 2025 with \$200M in liquidity, at the top end of the previously guided range.
• 2026 Guidance: Revenue expected between \$30M-\$35M (43%-67% growth), with consolidated gross margins around 15%. Operating expenses projected to decrease by another 15%.

Strategic and Operational Milestones

1. Expansion of Revenue Streams:
   • Energy Storage Systems (ESS): Now SES’s largest near-term driver. The acquisition of UZ Energy brought nearly 1 GWh of hardware sales, and the company recently signed a multi-year \$20M contract with a major distributor. SES plans to integrate its proprietary Molecular Universe Predict AI algorithms into UZ hardware, offering advanced battery management and health monitoring, which is expected to improve customer value and reduce maintenance costs.
   • Drones: SES is targeting the high-growth defense drone market, leveraging its Li-Metal and high-silicon carbon Li-ion batteries. The company is converting its South Korea line (NDAA-compliant since 2021) to drone cell production, with plans to expand NDAA-compliant capacity in Southeast Asia. This is a notable pivot that could unlock significant defense sector opportunities.
   • Advanced Materials: SES discovered six novel electrolyte materials via its AI-powered Molecular Universe platform, now being tested by over 40 customers. A JV with Hisun is set to produce these materials at large scale, targeting both consumer electronics and ESS markets.
2. Molecular Universe (MU) Platform:
   • The company’s proprietary AI4Science platform, now on version 1.5, is driving breakthroughs in battery materials and may be monetized independently. SES notes that other AI4Science companies with less revenue have achieved \$1B+ valuations, highlighting potential hidden value in the MU business.
3. Cost Discipline and Capital Efficiency:
   • SES has maintained a capex-light business model, with 2025 capital expenditures of just \$2.9M and expected 2026 capex in the single-digit millions. This discipline, combined with reduced operating expenses, is expected to support the company’s growth initiatives without needing additional capital in the near term.

2026 Strategic Priorities

• Execute on ESS and drone cell opportunities with newly appointed business unit leadership.
• Convert and expand NDAA-compliant manufacturing lines in Korea and Southeast Asia for drone cells.
• Grow UZ Energy’s hardware business globally and expand into the U.S. market.
• Commercialize novel materials developed by the Molecular Universe and expand the discovery pipeline.
• Continue leveraging MU’s AI-driven materials discovery to accelerate new product development.
• Maintain financial discipline via capex-light models and further optimize cost structure.

Items of Potential Price Sensitivity for Shareholders

• Revenue Acceleration and Diversification: The company’s shift from one-time OEM service revenue to recurring ESS, drone, and materials revenue streams signals a step-change in business model and may lead to future re-rating of the stock if execution continues.
• Major Contract Wins: The \$20M multi-year ESS contract announcement and entry into the U.S. energy storage market are significant commercial milestones.
• AI Platform Monetization: The potential for the Molecular Universe to be valued as a standalone AI4Science business at unicorn levels could unlock substantial hidden value.
• Product and Market Expansion: The move into NDAA-compliant drone batteries for the defense sector, and rapid scaling of material innovations, could be transformative if commercial traction continues.
• Operating Leverage: The company’s ability to scale revenue while reducing opex and keeping capex low is improving profitability and could accelerate the path to breakeven.

Financial Tables (Selected Data)

Conclusion: SES AI at an Inflection Point

SES AI Corp has delivered on transformational revenue growth, diversified its business, and set a clear path for further expansion in 2026. The company’s strategic pivot to ESS, defense drones, and AI-driven material science positions it at the forefront of several high-growth markets. Key developments—including the major ESS contract, expansion into the U.S., and the potential value of the Molecular Universe platform—are all potentially price sensitive and could drive significant re-rating of the shares if execution continues as outlined.

Disclaimer

This article is for informational purposes only and does not constitute investment advice or a recommendation to buy or sell any securities. Forward-looking statements involve risks and uncertainties. Investors should review SES AI Corp’s filings with the SEC and consult with their own financial advisors before making any investment decisions.

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