Yep... I agree, Patersons are renown for dumping when underwriting spec stocks , they've been doing it for years. I called this a few months ago when it was announced that they were underwriting the cap raise.
I think they ended up with a fair few, which is why the SP has struggled to gain any traction in recent months.
I would imagine they haven't got many left after the increase in volume over the last few months.