28 companies had corporate insiders buying at market prices in filings dated Dec 23, 2022, about $20.7 million combined. The biggest was TERN (Terns Pharmaceuticals, Inc.), where Vivo Opportunity Fund Holdings, L.P. led about $11 million of buying.
C-suite buying: seven companies. Cluster buying (3+ insiders) is running at 108 companies this month. Each filing is linked below if you want to check the details yourself.