Altium (ASX:ALU) closed up 29% after announcing the multinational software company and Tokyo-based supplier of advanced semiconductor solutions Renesas Electronics have entered into a scheme implementation agreement for Renesas to acquire 100% of the issued shares in Altium by way of scheme of arrangement.
ASX announcement: https://cdn-api.markitdigital.com/apiman-gateway/ASX/asx-research/1.0/file/2924-02772914-2A1505049