Pfizer has a 501c3 nonprofit foundation. "The Pfizer Foundation, Inc."
The foundation has a net asset/fund balance of $285,759,065 as of the end of FY2019.
Of that, $68,078,108 is in Blackrock stock.
And $205,129,954 is in Blackrock corporate bonds.
The more you know!
Source: https://apps.irs.gov/pub/epostcard/cor/136083839_2019606(1)pdf
That link for the PDF file doesn't work.
Sorry.