President-elect Donald Trump’s spokesman Jason Miller says Donald Trump sold all of his stocks in June.

Miller was questioned during a call with reporters about Trump’s transition and schedule on Tuesday morning about a tweet from 2013 where the President-elect said he bought stock in Boeing.

“The President-elect sold all of his stock back in June,” Miller informed the press.

The question arose after Trump tweeted earlier on Tuesday morning about a deal with Boeing to build new Air Force Ones, which is costing tax payers roughly $4 billion, suggesting he would cancel the order.

Boeing is building a brand new 747 Air Force One for future presidents, but costs are out of control, more than $4 billion. Cancel order! — Donald J. Trump (@realDonaldTrump) December 6, 2016

Trump’s tweet prompted a response from Boeing.

“We are currently under contract for $170 million to help determine the capabilities of these complex military aircraft that serve the unique requirements of the President of the United States,” Boeing explained in a statement. “We look forward to working with the U.S. Air Force on subsequent phases of the program allowing us to deliver the best planes for the President at the best value for the American taxpayer.”

According to the Washington Post, Trump’s selling of his stock may address worries about any potential conflicts-of-interest regarding his finances once he takes office.

Trump held roughly $40 million in 2015 in stock, notes the Washington Post.