I was just wondering if a whistleblower program that rewards credible whisteblowing with a portion of the fine exists and it does!

https://www.whistleblowersinternational.com/what-is-whistleb...

There aren't many famously-rewarded whistleblowers, and of them, banking seems to be a rarity (except for Deutsche Bank), but it's certainly an interesting concept. Effective? Time will tell.