On Wall Street, few signals attract more attention than insider trades — the moves made by those who know a company best. When insiders sell their own stock, it stirs unease. It’s not always a red flag, but it does raise questions as to whether the selling is routine profit-taking, has to do with personal liquidity, or represents valuation concerns. In markets running hot, it often leans toward the latter. Lately, insider activity has dominated the Street, especially in artificial intelligence (AI), where ...