Trump does not own half of Moderna, as posts claim Published On Trump does not own half of Moderna, as posts claim (REUTERS) - Moderna, one of the pharmaceutical companies spearheading COVID-19 vaccination efforts in the United States, is not half owned by former president Donald Trump, as posts on social media claim. One post says, “Trump owns half of Moderna.” Ray Jordan, Moderna’s Chief Corporate Affairs Officer, told Reuters that “Moderna is a publicly traded U.S. company, and as such, all owners of more than 5% of the company’s shares are required to make filings with the SEC disclosing their ownership.”