Looks like Krzanich sold $39.4M of stock on 11/28. Hard to say when the top brass knew about this flaw.
https://finance.yahoo.com/quote/INTC/insider-transactions?p=...
https://finance.yahoo.com/quote/INTC/insider-transactions?p=...
The marvel is that somehow the news was kept from hitting the media until he had finished his trade, and then was revealed immediately after the transaction was complete. I wonder how that coincidence happened.