There usually aren't significant remaining funds, and I've never heard of investors keeping IP (there are usually multiple investors, and IP would be hard to sp

There usually aren't significant remaining funds, and I've never heard of investors keeping IP (there are usually multiple investors, and IP would be hard to split). And a 2x return is unusually rich for an HR acquisition. If you're lucky you get your money back. But after several years, during which you've had operating expenses.