There is a new story on Sigma here:
http://www.afr.com/p/opinion/sigma_close_to_home_with_warehouse_aHLmXMGmj38QmKoETMpPNI
I am not an AFR subscriber, so don't have the details. Sadly, what is good news for Sigma normally means bad news for API.
I hold API and am pleased that the price has moved back up a little. Let's hope the currency strength has given them a good trading period for next reporting....