Tigo also Joins Small-Cap Russell 2000^® Index and Other Growth and Value Style Indexes

Tigo Energy, Inc. (NASDAQ:TYGO) ("Tigo", or the "Company"), a leading provider of intelligent solar and energy solutions, today announced its addition to the Russell 3000® Index as part of the first 2026 Russell indexes reconstitution, effective as of the open of US equity market today on June 29, 2026.

Membership in the Russell 3000^® Index, which remains in place for half a year beginning 2026, means automatic inclusion for Tigo in the small-cap Russell 2000^® Index as well as the appropriate growth and value style indexes

"The inclusion in the Russell 2000^® Index is a testament to Tigo's growth throughout 2025 and marks an important component for us to reaching a wider investor base going forward," said Bill Roeschlein, CFO of Tigo.

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. According to data as of the end of June 2025, about $12.2 trillion in assets are benchmarked against the Russell US indexes.

About Tigo Energy, Inc.

Founded in 2007, Tigo is a worldwide leader in the development and manufacture of smart hardware and software solutions that enhance safety, increase energy yield, and lower operating costs of residential, commercial, and utility-scale solar systems. Tigo combines its Flex MLPE (Module Level Power Electronics) and solar optimizer technology with intelligent, cloud-based software capabilities for advanced energy monitoring and control. Tigo MLPE products maximize performance, enable real-time energy monitoring, and provide code-required rapid shutdown at the module level. The Company also develops and manufactures products such as inverters and battery storage systems for the residential solar-plus-storage market. For more information, please visit www.tigoenergy.com.

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Investor Relations Contact

Ralf Esper

Gateway Group, Inc.

(949) 574-3860

TYGO@gateway-grp.com