Commonwealth Fusion Systems's latest publicly disclosed primary financing record is a $1B Growth dated July 30, 2026. The event is shown on the company page using the event date—not the date Captables published this historical profile.

Not disclosed is identified as lead investor. Other named participants include Pension funds, sovereign wealth funds, infrastructure, industrial corporate partners.

The preceding primary records in the ledger are Undisclosed Series B Extension dated August 28, 2025; Undisclosed Series B dated December 1, 2021; Undisclosed Series A Extension dated May 26, 2020. These entries describe disclosed company financings; they do not include every secondary trade, employee tender, valuation mark or rumored transaction unless those events are separately labeled in the company ledger.

Commonwealth Fusion Systems is ranked number 88 in the Captables Private 100 source universe. It operates in Fusion Energy and is based in United States. Its $2.60B ranking value is a third-party snapshot and should not be treated as a current executable share price or as the valuation for this round.

The round is currently supported by a public financing-database entry rather than an issuer filing, so Captables labels it as database-listed evidence. This page is a public-source reconstruction, not the issuer's stock ledger or legal capitalization table; undisclosed terms remain undisclosed and readers can submit stronger evidence for editorial review.