40 companies had insiders buying on the open market in filings dated Sep 19, 2022, about $18.1 million combined. The biggest was THRD (Third Harmonic Bio, Inc.), where Atlas Venture Associates XI, LLC led about $5.1 million of buying.
CEOs and CFOs show up 7 times in today's list. Cluster buying (3+ insiders) is running at 90 companies this month. As always, a purchase is a data point, not a recommendation.