Elon Musk is asking a US court to dismiss an SEC lawsuit accusing him of saving $150 million by disclosing his Twitter stake late in 2022, in violation of rules requiring disclosure within 10 days of surpassing 5% ownership. His lawyers argue the case is baseless, saying he corrected the filing quickly, caused no harm to investors, and is being unfairly targeted due to his public criticism of the regulator. The SEC maintains Musk’s delay caused economic harm and is seeking unusually large monetary penalties compared to similar cases.