Stake valued at about $3 billion Twitter shares surge 20% April 4 (Reuters) – Tesla Inc (TSLA.O) top boss Elon Musk revealed a 9.2% stake in Twitter Inc (TWTR.N), worth nearly $3 billion, making him the micro-blogging site’s largest shareholder and triggering a more than 25% rise in the company’s shares. Musk’s move comes close […]