My guess is yes, to the tune of millions, the origin of which will not be known publicly. It turns out that the head of the Super PAC has a company that regularly takes money from pharmaceutical and medical device companies:
"the actions of the PAC’s pro-Biden predecessor, “American Possibilities,” also organized by Rasky, are a likely indicator of the group’s future fundraising policies. “American Possibilities” accepted more than $113,000 in donations from lobbyists for Apple, Boeing, Facebook, and the NFL, as well as unregistered influence peddlers working on behalf of a host of industries, ranging from pharmaceuticals to finance.
https://www.thedailybeast.com/head-of-pro-biden-super-pac-is-cozy-with-lobbyists-despite-bidens-pledge
The forum has been filled with alarm at Warren's public MFA proposal, while nothing is said about the incredibly profitbable companies that are opposing it, as they want to continue to reap big profits off the backs of people who can't afford the current costs of healthcare.
I guess the Biden campaign could ask the Super PAC supporting their candidate to be transparent about who is funding them but that, of course, would go against the whole point of Super PACs, which is to protect those funding them from prying eyes. So we won't know. And the Biden campaign could accept their help while denying it at the same time.
I would bet the companies and their CEOs are already opening their pocketbooks to give to the pro-Biden Super PAC.
