 Elliott Investment Management sold Tesla Inc NASDAQ:TSLA convertible notes worth 620 million, bought more than 240 million in Twitter Inc NYSE:TWTR and exited Facebook Inc NASDAQ:FB during the second quarter, regulatory filings revealed on Tuesday. The Trades: The New York-based hedge fund, which manages assets worth 42 billion, also added positions in Howmet Aerospace Inc NYSE:HWM and social media company Pinterest Inc NYSE:PINS. 