40 companies had officers and board members buying on the open market in filings dated Aug 5, 2021, about $192.7 million combined. IEA topped the list with roughly $70.1 million, led by Ares Management GP LLC.
Ten of the buys came from a CEO or CFO. Cluster buying (3+ insiders) is running at 78 companies this month. One buy doesn't make a thesis, but it's a good place to start digging.