Private equity
Investment firms that buy companies with borrowed money and sell them within a few years.
A private equity firm raises a fund from institutional investors, buys companies using a large proportion of borrowed money secured against the target, tries to raise their value, and sells within roughly three to seven years to return capital to its investors.
For brand ownership this matters because private equity ownership is temporary by design. A brand under private equity ownership will almost certainly change hands again, and records of these owners go stale faster than any other kind.