This excerpt taken from the BSX DEF 14A filed Mar 27, 2007.
Executive Stock Ownership Guidelines
Our executive officers are required to have a significant personal investment in Boston Scientific through their ownership of our shares. In February 2007, the Board adopted stock ownership guidelines for executive officers in the following amounts:
Each executive officer is expected to attain his or her ownership target within five years after February 20, 2007 or such individual becoming an executive officer, whichever is later. We expect that our executive officers will meet these guidelines within five years. The Governance Committee will monitor compliance with these guidelines on an annual basis.