Joiners No joiners today. Leavers No leavers today. What’s cooking in the IPO kitchen? Petershill Partners, Expected Intention to Float on the London Stock Exchange. Petershill Partners, a leading investment group providing bespoke capital and strategic solutions to some of the world's best performing alternative asset management firms. Petershill Partners today comprises minority investments in 19 high-quality Partner-firms, previously held in private funds managed by Goldman Sachs Asset M ....