Donald Trump invests in a social media company that holds reserves of cryptocurrency.

Donald Trump Jr. purchased shares of a struggling social media company that is building up a Bitcoin reserve, marking the latest investment by the Trump family in the strategy of "cryptocurrency as a treasury asset". Thumzup Media, headquartered in Los Angeles, stated in a filing on Wednesday that Donald Trump Jr. holds 350,000 shares of the company, which are valued at over $4 million based on yesterday's closing price of $12.36 per share. A source close to Donald Trump Jr. revealed that he purchased the shares on the advice of his investment advisor and has no other relationship with the company.