Tesla’s stock declined slightly on Thursday after filings revealed Chief Executive Elon Musk sold about $5 billion worth of his shares this week following his much-hyped Twitter poll. The electric-car maker’s stock ended the session down 0.4 percent at $1,063.51 after tumbling earlier in the week. Musk’s share sale was his first since 2016 and comes after his weekend poll of Twitter users about offloading 10 percent of his Tesla stake, which comprises most of his estimated $281 billion fortune. “I don’t think investors are reading in to the news negatively,” said Oliver Pursche, senior vice president and adviser at Wealthspire Advisors in New York. “If you believe in the Tesla story, this should not impact you or change your mind.” Tesla’s stock is in portfolios utilized by Wealthspire, Pursche said. Filings showed Musk’s trust sold nearly 3.6 million shares of Tesla, worth around $4 billion, while he also sold …