Smash the other 5% came from this article Tues. This article was comments made by banking sources to Rueters:

Russia Polyus shareholders may sell 10 pct-sources
Mon Nov 16, 2009 11:15pm IST
MOSCOW, Nov 16 (Reuters) - The shareholders of Russia's top gold producer,
Polyus Gold (PLZLq.L: Quote, Profile, Research)(PLZL.MM: Quote, Profile,
Research), may sell up to 10 percent of its shares through an accelerated
book-build closing on Monday, banking sources told Reuters.

Polyus' market capitalisation has nearly quadrupled to $11.23 billion in the
last year.

"If the deal takes place, it will be closed this evening and the announcement
will be in the morning," one source close to the deal said.

Onexim Group, the investment vehicle of Russian billionaire Mikhail Prokhorov,
holds a little under 30 percent in Polyus Gold and associated shareholders
another 10 percent.

The other main shareholder is tycoon Suleyman Kerimov, with 37 percent.

"As far as I know, Onexim and Kerimov are selling 5 percent of (Polyus) shares
each," another source said.

Polyus and Onexim declined to comment, when contacted by Reuters. Kerimov's
representatives could not be reached. (Reporting by Olga Popova and Polina
Devitt, writing by Aleksandras Budrys; editing by Simon Jessop)