A stock split is a common occurrence in the public market. Companies will sometimes divide their stock after they have seen their share price rise significantly. This increases the availability of the stock and may also indicate the management's confidence that the company will continue to perform well.
Ubisoft will put the stock-split to a vote at its September 22nd annual general meeting. If the plan goes through stock holders of Ubisoft will now own double the shares they once owned, each worth half the price they were originally worth.