OpenSecrets, which tracks money in U.S. politics, in 2018 compiled data about Congressional stock-market holdings based on lawmakers' financial disclosures. It documented:
OpenSecrets pointed out that these investments could constitute a conflict of interest, writing,
“Lawmakers could lose massive chunks of their personal wealth if their legislation hurts those companies’ bottom lines.”
Many members also receive campaign contributions from the pharmaceutical industry. According to health care media outlet Stat, “72 Senators and 302 [House] members cashed a check from the pharmaceutical industry ahead of the 2020 election”—more than two-thirds of Congress. COVID-19 providers Johnson & Johnson, Astra Zeneca, and Pfizer are included; the latter contributed to 228 lawmakers.
Moderna, another COVID-19 vaccine maker, is privately held.