Insider buyers were busy on Jan 16, 2026: 19 companies, $38.5 million in open-market purchases all told. The biggest was WRB (BERKLEY W R CORP), where MS&AD Insurance Group Holdings, Inc. led about $36.6 million of buying.
48 companies had three or more insiders buying in the past 30 days. Five 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.