How much of SE does sony own?

[FilaBrasileiro]

Devilstation said:
8% is a nice chunk of a company, but not enough to influence any decisions.

How does Sony benifit from owning a large amount of shares in SE?
Do they get some of SE's yearly profit?
Or are they just investing money in SE, in the hope that one day they can buy SE?

 They get dividends and gain distributions, and the value per share shot up the roof when the two companies merged, so even though they had less of a percent on the company (thus less voting power), they had a lot more money values for their shares.