muneer satter of goldman sachs private holding

In reading the "Becoming a substantial holder" dated 31 Jul announcement.
I notice Muneer A. Satter privately ownes 5.3% and has been buying.

Who is Muneer A. Satter (Co-Chair)?
Muneer Satter is a Managing Director at Goldman Sachs in the Principal Investment Area (the "PIA") which manages the firm's private equity investments. The PIA is one of the largest private equity investors in the world, investing in the U.S., Europe and Asia. Muneer joined Goldman Sachs in 1988 and became a Partner of the firm in 1996. He sits on the Investment Committee of the PIA and he is the Global Head of the Mezzanine Group.

Muneer serves on the Boards of CCC Information Systems, Inc. and Grupo Clarin, S.A. He also serves on the Board of the Nature Conservancy.

Muneer received a B.A. from Northwestern University, a J.D. from Harvard Law School, and an M.B.A. from the Harvard Graduate School of Business Administration.

Please not we must be getting very close to 20 Implants.