BioAmber Inc fka BIOAQ

[101King_Kong101]

Why would KKR pay out money, what would they get for paying out more than than they already paid for LCY?

Two words: Value creation.

It's part of KKR's investing strategy, don't take it personally.
https://media.kkr.com/news-releases/news-release-details/kkr-closes-us93-billion-asian-fund-iii

Ming Lu, KKR Member and Head of Asia Private Equity, added, "We see a diverse set of opportunities across Asia Pacific stemming from rising consumption and urbanization trends in key markets as well as larger carve-out and cross-border transactions in countries such as Japan. We look forward to partnering with companies to provide unique value-add capabilities beyond capital investment alone which generate positive results for our stakeholders."

Here's an interesting KKR filing from 9/11/19:
https://www.sec.gov/Archives/edgar/data/1787621/000119312519242897/d768379dn2.htm

Event Driven—Positions in securities with near term catalysts that are expected to lead to price appreciation/depreciation. Catalysts include refinancings, restructurings, mergers and acquisitions and rating upgrades, among others