Filings for May 14, 2025 show insider purchases at 40 companies, adding up to roughly $25.9 million. The biggest was THS (TreeHouse Foods, Inc.), where JANA Partners Management, LP led about $7.9 million of buying.
Cluster buying (3+ insiders) is running at 72 companies this month. 13 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.