1. acquisition of 123,000 shares on 3/10/2000
2. disposal of 144,000 shares on 3/10/2000
3. acquisition of 29,000 shares on 4/10/2000
4. disposal of 13,000 shares on 4/10/2000
5.acquisition of 49,000 shares on 5/10/2000
6. disposal of 47,000 shares on 5/10/2000