SpaceX told investors it hopes to raise about $75 billion in its initial public offering, higher than the $50 billion it previously signaled, the Financial Times reported, citing unnamed sources.

Elon Musk is now targeting a valuation of about $1.75 trillion for SpaceX, according to the FT.

SpaceX hasn't filed its IPO draft prospectus with U.S. regulators but could do so in the coming days as it aims to make its trading debut by June, the FT said.

Bank of America, Goldman Sachs, JPMorgan Chase and Morgan Stanley have been lined up for lead roles on the planned listing, according to the FT.

Bankers involved are considering allowing existing shareholders to cash out of their positions on the first day, two sources told the FT.

SpaceX is weighing a staggered lock-up to allow initial investors to sell down their stakes over several months, one source told the FT.

SpaceX didn't immediately respond to a request for comment, the FT said.