newcleo

What does newcleo do?

newcleo develops lead-cooled fast reactors, a Generation IV nuclear design intended to be safer and produce less waste than conventional reactors. It also plans a MOX fuel manufacturing operation.

Is newcleo publicly traded?

Yes. newcleo listed on Nasdaq under ticker NWCL in September 2026 through a merger with the NewHold Investment Corp III SPAC.

Who founded newcleo?

Stefano Buono, Luciano Cinotti, and Elisabeth Rizzotti founded the company in September 2021. Buono previously founded Advanced Accelerator Applications, which sold to Novartis for $3.9 billion.

Where is newcleo headquartered?

newcleo is headquartered in Paris, France, with technical operations across Italy, the UK, Switzerland, Belgium, and Slovakia.

Who owns newcleo?

The company is publicly held after its September 2026 de-SPAC. Founders, private investors, and former SPAC shareholders hold the equity.

Did newcleo IPO?

newcleo reached the public market through a SPAC merger rather than a traditional IPO. The September 2026 listing raised approximately $247 million and closed its first day near $8.15, below the $10 SPAC reference price.

Stefano Buono, physicist Luciano Cinotti, and Elisabeth Rizzotti founded newcleo in September 2021 in London. The launch combined the acquisition of Hydromine Nuclear Energy, the reactor design company created in 2013, with a $118 million initial capital raise.

The company relocated its headquarters to Paris as it scaled. A EUR 300 million equity round in 2022 funded expansion, and newcleo established technical operations in Turin, Italy, while pursuing regulatory work in France and the UK.

Growth continued through partnerships. The company signed agreements with ENEA, the Italian research agency; CEA, the French atomic energy commission; Slovak nuclear company VUJE; and shipbuilding and logistics firms including Fincantieri and NTS. Total private funding exceeded EUR 780 million by May 2026.

In September 2026, newcleo reached the Nasdaq through a merger with NewHold Investment Corp III, a SPAC. The transaction raised approximately $247 million gross but priced below the $10 SPAC benchmark, closing its first day near $8.15. The weak debut reflected investor caution on pre-revenue nuclear developers.