** Shares of uranium-linked stocks rise premarket

** Sources told Reuters that U.S. President Donald Trump will sign executive orders (EOs) aimed to jumpstart the nuclear energy industry as soon as Friday

** Sam Altman-backed nuclear startup OKLO OKLO.N up 7.4%

** Nuclear utilities Constellation Energy CEG.O up 1.9%, Vistra VST.N up 1.1%

** Smaller companies NuScale Power SMR.N and Nano Nuclear Energy NNE.O up 7.8% and 8% respectively

** "The EO is expected to declare a national emergency over U.S. dependence on Russia and China for enriched uranium, nuclear fuel processing, and advanced reactor inputs and encourage the U.S. Department of Energy (DoE) to use loan guarantees and direct loans to increase the build-out of nuclear reactors," says H.C. Wainwright & Co

** Nano Nuclear Energy NNE.O, Centrus Energy LEU.A and Oklo stand to benefit - H.C. Wainwright & Co

** Brokerage Wedbush says the EO is expected to be a significant tailwind for the industry, with OKLO being one of the main beneficiaries

** Shares of Uranium Energy UEC.A rise 12.4%, Centrus Energy up 14.2%

** Global X Uranium ETF URA.P gains 6.3%

(Reporting by Sanchayaita Roy in Bengaluru)

((Sanchayaita.Roy@thomsonreuters.com;))