Here's what insiders bought in filings for Jan 19, 2023 — 23 companies and around $19.7 million in total. The biggest was APPN (APPIAN CORP), where Abdiel Qualified Master Fund LP led about $11.9 million of buying.
Seven of the buys came from a CEO or CFO. Cluster buying (3+ insiders) is running at 52 companies this month. One buy doesn't make a thesis, but it's a good place to start digging.