id,date,date_precision,status,transaction_type,round,amount_usd_low,amount_usd_high,lead_or_buyer,co_leads,valuation_usd_low,valuation_usd_high,valuation_basis,valuation_to_run_rate_multiple,multiple_bound,multiple_basis,step_up_vs_prior_closed,price_per_share_usd_low,price_per_share_usd_high,shares,source,source_url,other_source_urls,notes,last_updated
series-e-final-2026-01-28,2026-01-28,day,Closed round,primary_equity,Series E final close,75000000,75000000,Google (new),"With: Capricorn, Goldman Sachs Alternatives (existing)",6000000000,,"Post-money, per a source to TechCrunch (“north of $6 billion”); not stated by Redwood",,,,,,,,"Redwood Materials, 28 Jan 2026",https://www.redwoodmaterials.com/news/redwood-materials-announces-final-close-of-425m-series-e/,https://techcrunch.com/2026/01/28/redwood-attracts-google-for-its-425m-series-e-as-ai-power-needs-rise/,"Redwood: “final closing of our Series E financing, bringing the total raise to $425 million”. TechCrunch: total private capital raised $2.3B.",2026-11-13
series-e-2025-10-23,2025-10-23,day,Closed round,primary_equity,Series E,350000000,350000000,Eclipse,With: NVentures (NVIDIA) and others,6000000000,6000000000,"Per a source to TechCrunch (“about $6 billion, a billion higher than its previous valuation”); not stated by Redwood",,,,,,,,"Redwood Materials, 23 Oct 2025",https://www.redwoodmaterials.com/news/redwood-announces-350-million-series-e-funding/,https://techcrunch.com/2025/10/23/redwood-materials-raises-another-350-million-to-power-up-its-energy-storage-business/,No step-up shown: the Series D valuation was never stated (TechCrunch only implies about $5B).,2026-11-13
series-d-2023-08-29,2023-08-29,day,Closed round,primary_equity,Series D,1000000000,,"Goldman Sachs Asset Management, Capricorn’s Technology Impact Fund, T. Rowe Price-advised funds (co-leads)",,,,No valuation stated by Redwood,,,,,,,,"Redwood Materials, 29 Aug 2023",https://www.redwoodmaterials.com/news/redwood-series-d/,,"Redwood: “nearly $2 billion of equity capital” raised to date, plus a separate $2B U.S. Department of Energy loan commitment (debt, not in the table).",2026-11-13
series-c-2021-07-28,2021-07-28,day,Closed round,primary_equity,Series C,700000000,700000000,T. Rowe Price-advised funds and accounts,"With: Goldman Sachs Asset Management, Baillie Gifford, CPP Investments, Fidelity and others",3700000000,3700000000,"Post-funding, per a source to TechCrunch (“post-funding valuation is $3.7 billion”); Redwood declined to comment",,,,,,,,"TechCrunch, 28 Jul 2021",https://techcrunch.com/2021/07/28/redwood-materials-raises-700m-to-expand-its-battery-recycling-operation/,https://www.reuters.com/business/finance/battery-recycling-firm-redwood-raises-700-mln-big-fund-managers-2021-07-28/,,2026-11-13