A 2012 filing with the Securities and Exchange Commission said Donald Trump was worth $4.2 billion — less than half than what he’s claimed while on the campaign trail, the Guardian reported Saturday. The statement, filed by Wells Fargo Security on Trump’s behalf, said he had more than $250 million in liquid assets, a substantial amount to be sure, but far less than the $400 million Trump has said he has since running for president, according to the Guardian. Trump’s filing with the Federal Election Commission this year said he was worth $10 billion, though outside analysts have estimated a lower net worth.

The Guardian report comes as Trump’s campaign has struggled to raise outside money to fund his presidential run as he turns to a general election race against Hillary Clinton. Trump bragged that his campaign was self-funded during the primary (though he did receive some donations.) Since emerging as the GOP’s presumptive nom, his campaign signaled its a general election pivot would include a more conventional fundraising approach, but so far it has struggled. Its most recent campaign finance report showed it having only $1.3 million on hand at the end of May, compared with the $42 million the Clinton campaign reported to have on hand at the time.

Trump loaned $45 million to his campaign, a loan he said he has since forgiven, though an NBC report Thursday found no official documentation that it had been forgiven.

The Trump campaign did not respond to the Guardian’s request for comment about the 2012 filing. A spokeswoman for Wells Fargo told the Guardian the statement was accurate.