Since his election a few weeks ago, Donald J. Trump has faced serious questions about the conflicts of interest his vast business empire could create once he enters the White House. There is at least one facet of his holdings that should not be an issue: his stock portfolio.

The president-elect sold all his stock holdings in June, according to Jason Miller, a spokesman.

Financial filings submitted by Mr. Trump and released in May by the Federal Election Commission show that as of that month, Mr. Trump’s portfolio was worth at least $22 million, and included a number of the country’s best-known companies, among them Apple, Walmart and MasterCard. Mr. Trump’s largest single holding was a stake in a multistrategy fixed-income hedge fund managed by BlackRock that had a value of at least $25 million. It is not known if he sold that or smaller holdings, like his “investment in gold,” which he listed as being worth at least $100,000.

It is not possible to independently verify Mr. Trump’s stock sales, but at some point during his first term he will have to release a financial disclosure form that will include information about his stock holdings.

Mr. Trump’s stock holdings are not a significant portion of his business empire, but the sale Mr. Miller discussed could alleviate some immediate concerns about his conflicts. Mr. Trump has been singling out corporations for their behavior, like the airplane manufacturer Boeing, which he attacked on Twitter on Tuesday for “out of control” spending on the new Air Force One that the government commissioned the company to build.