Insider buyers were busy on May 19, 2023: 40 companies, $35.9 million in open-market purchases all told. At the top: LAB, $5.3 million bought, with Casdin Eli as the largest buyer.
Seven of the buys came from a CEO or CFO. Cluster buying (3+ insiders) is running at 198 companies this month. Each filing is linked below if you want to check the details yourself.