Vivendi continues to build their stake in Lagardere, filing notice last week after passing the 25 percent threshold — having built their position up to 26.7 percent of shares. They began buying the stock in April of this year — starting with a 10.6 percent stake — initially as a show of support for management in the first stages of its battle with activist investor Amber Capital. In mid-August Vivendi aligned with Amber in calling to seat four members of the board, and that campaign has intensified since, also enlisting the third-largest shareholder in Lagadere, the Qatar Investment Authority — […]