Here's a list of the companies that Berkshire-Hathway currently invests in:

https://www.cnbc.com/berkshire-hathaway-portfolio/

Now, it's possible that they might diverge from their business model and invest in a teeny company. But, when you look at that list, it sure doesn't look like IPIX fits their criteria.

Not criticizing TPB for posting this -- it's interesting to see what gets posted at these online newsletter-type sites -- but this rumor seems far less likely than a deal with a big pharma.