Filings for Sep 20, 2021 show insider purchases at 40 companies, adding up to roughly $77.7 million. The biggest was DICE (DICE Therapeutics, Inc.), where Kolchinsky Peter led about $27.8 million of buying.
Cluster buying (3+ insiders) is running at 87 companies this month. Ten of the buys came from a CEO or CFO. As always, a purchase is a data point, not a recommendation.