Los Angeles, CA – The Law Offices of Frank R. Cruz announces an investigation of Banco Santander, S.A. (“Banco Santander” or the “Company”) (NYSE: SAN) on behalf of investors concerning the Company’s possible violations of federal securities laws.

What Is The Investigation About?

On February 27, 2026, the Financial Times reported that lenders, including Santander, are “scrambling to understand the extent of losses,” after a UK-based mortgage provider named Market Financial Solutions Ltd, (“MFS”) had “collapsed suddenly amid fraud allegations, reigniting fears of poor underwriting standards in the booming market for asset-backed lending.” The report noted that the judge overseeing insolvency proceedings “raised accusations of fraud, citing creditor allegations that MFS had been double-pledging its assets to lenders who could now have a right to less collateral than they thought.”

On this news, Santander’s stock price fell 4.48% or $0.40, to close at $11.96 per share on February 27, 2026, thereby injuring investors.

Then, on March 2, 2026, the Financial Times reported further details of ongoing administration proceedings, as well as that “[t]here might be a shortfall in collateral backing loans to MFS entities of as much as £930mn, according to two people with direct knowledge of the matter.”

On this news, Santander’s stock price fell 7.78% or $0.93, to close at $11.03 per share on March 3, 2026.

Most recently, on March 6, 2026, the Financial Times reported that the Bank of England’s Prudential Regulation Authority “is worried there may have been insufficient risk assessment and due diligence checks carried out by the banks on MFS and its sister companies, which have been linked to a property scandal involving a Bangladeshi politician.”

On this news, Santander’s stock price fell 1.25% or $0.14, to close at $11.06 per share on March 6, 2026, thereby injuring investors further.