Partners Plan to Cash In Carlyle Units for $8.2 billion?

SEC documents show The Carlyle Group, a publicly traded private equity underwriter (PEU) filed a shelf registration, meaning some Carlyle partners are ready to monetize their holdings.  Potential proceeds could total:

$8,243,038,140

The registration did not indicate which Carlyle partners wish to cash in, Carlyle's legendary co-founders/associates, Mubadala Development Corporation or CalPERS. 

The shelf registration at 264 million shares is nearly 7.5 times Carlyle's IPO float of 35 million shares   Carlyle issued  a press release on the filing.