https://www.reuters.com/article/tesla-musk-stake-tax-analysis/analysis-musks-tesla-stock-sale-poll-raises-taxing-questions-idUSKBN2HU159

When Elon Musk asked his Twitter followers last weekend if he should sell 10% of his Tesla Inc stock, he said he was posing the question because "much is made lately of unrealized gains being a means of tax avoidance."