I would have to file an updated FOI to find out the exact amount of shares JP Morgan Chase holds. However they are currently the bank with the highest amount of capital. Since banks must buy shares in their regional fed equivalent to 6% of their capital. It follows that they own the most shares.
Current opinion: there should be a lot more transparency between the federal reserve and the people.
Also if you just google, biggest shareholder in the federal reserve, you will get such a wide variety of answers. It brought to mind that phrase, “opinions are like assholes, everyone has one.”

