https://www.businessinsider.com/lawmakers-bought-sold-covid-19-related-stocks-during-pandemic-2021-12

Of the big three vaccine manufacturers, Pfizer leads with the most money spent lobbying members of Congress during the pandemic. According to OpenSecrets, Pfizer spent nearly $11 million lobbying the federal government, including Congress, in 2020. The nonpartisan research organization also reported that Johnson & Johnson spent $7.9 million on lobbying in 2020. Moderna, which started lobbying the federal government in 2019, has spent $420,000 on federal lobbying in 2021, an increase from $280,000 in 2020.

Joshua Silver, the CEO of the anticorruption advocacy group RepresentUs, said the flow of money in and out of the US Capitol — be it campaign contributions to elected officials, or sitting lawmakers investing in industries they're supposed to oversee — underscored an erosion of ethical standards in Congress.