Filings for Apr 26, 2021 show insider purchases at 19 companies, adding up to roughly $284.6 million. At the top: NIHK, $276.8 million bought, with Video River Networks, Inc. as the largest buyer.
Cluster buying (3+ insiders) is running at 50 companies this month. Three of the buys came from a CEO or CFO. One buy doesn't make a thesis, but it's a good place to start digging.