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Stellantis holds 9.5% stake in solid state battery startup Factorial, filing shows - Finance news and analysis from Global Banking & Finance Review
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Stellantis holds 9.5% stake in solid state battery startup Factorial, filing shows

Published by Global Banking & Finance Review

Posted on June 19, 2026

1 min read

· Last updated: June 19, 2026

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Stellantis Holds 9.5% Stake in Solid-State Battery Firm Factorial Energy

Stellantis' Investment and Partnership with Factorial Energy

Stake Details and Future Prospects

MILAN, June 19 (Reuters) - Automaker Stellantis holds a 9.5% stake in U.S. solid-state battery startup Factorial Energy and might buy further shares in the future, a SEC filing showed.

Solid-State Battery Technology Overview

Solid-state batteries for electric vehicles are expected to be lighter, with better energy density than, traditional lithium-ion batteries, and ensuring faster charging times. However manufacturers have so far struggled to produce them at scale.

Key Financial and Strategic Highlights
  • Stellantis' overall stake in Factorial is valued around $126 million at current stock prices.
  • Stellantis sees Factorial as an "attractive investment opportunity", the filing showed.
  • The Franco Italian automaker first invested in Factorial in 2021, with a €75 million ($86 million) deal.
  • Stellantis said earlier this month it had integrated Factorial's 'FEST' solid-state battery cells into a development vehicle and launched a road-testing program to verify performance, safety and reliability.
  • According to the filing, Stellantis' Financial Services CEO Jon Nelson has been elected to Factorial's board.
Additional Information

($1 = 0.8728 euros)

(Reporting by Giulio Piovaccari, editing by Gavin Jones)

Key Takeaways

  • Stellantis acquired its 9.5% equity in Factorial Energy through conversion of existing preferred stock, warrants, and a $2m convertible note during the June 5, 2026 business combination, totaling 8,669,995 Series A shares out of 91,510,501 outstanding (stocktitan.net).
  • Jon Nelson, CEO of Stellantis Financial Services, joined Factorial’s board, giving Stellantis direct governance influence alongside its minority stake (stocktitan.net).
  • The shares are subject to tiered lock-up restrictions—25% unlock in 180 days, another 25% at 270 days, and remaining 50% after one year—with possible early release tied to trading conditions; Stellantis also secured demand and piggyback registration rights (stocktitan.net).
  • Stellantis first invested in Factorial in early 2022 as part of its Series D round, aiming to accelerate solid-state battery commercialization with up to 50% longer range and scalable FEST™ cell technology (stellantis.com).
  • Solid-state batteries like FEST™ promise higher energy density, faster charging, and improved safety versus conventional lithium-ion, though mass production remains a challenge (stellantis.com).

References

Frequently Asked Questions

How much of Factorial Energy does Stellantis own?
Stellantis holds a 9.5% stake in Factorial Energy, valued around $126 million at current stock prices.
Why is Stellantis investing in solid-state battery technology?
Stellantis views Factorial as an attractive investment opportunity and aims to advance solid-state batteries for lighter, faster-charging electric vehicles.
Has Stellantis tested Factorial’s solid-state batteries in vehicles?
Yes, Stellantis has integrated Factorial's 'FEST' solid-state battery cells into a development vehicle and launched a road-testing program.
When did Stellantis first invest in Factorial?
Stellantis first invested in Factorial Energy in 2021, with a €75 million ($86 million) deal.
Who represents Stellantis on Factorial’s board?
Stellantis' Financial Services CEO Jon Nelson has been elected to Factorial's board.

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