There is significant interest inAET by institutional investors. The 98.79% of outstanding shares they control represents a greater percentage of ownership than at any other company in the Managed Health Care industry. Additionally, during the quarter ended December 2012, these large investors purchased a net $523.4 thousand shares.
| Other institutional | 50.64% |
| Mutual fund holders | 48.14% |
| Individual stakeholders | 0.61% |