Wholly owned subsidiary Perpetual Trust buying PGC shares

We’ve noticed some interesting filings on Pyne Gould’ public register at the Companies Office.
On 7 Feb 2012 the following three filings were made.

1.  Perpetual Trust Limited (100% owned by Pyne Gould) was added as a new shareholder and holds 1,786,989 (0.8%) whilst Levered Equity Finance was removed. 
2.  George Kerr, in his personal capacity, is added as a new shareholder holding 2,125,445 (1%). 
3.  Gould Holdings Limited, with directors George Gould and Kevin Arscott, is removed as shareholder. 

We are asking the obvious questions.........................