Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000806564 | |||
| Series S000002467 | Morgan Stanley Mortgage Securities Trust | ||
| Class/Contract C000006611 | A | MTGAX | |
| Class/Contract C000006612 | B | MTGBX | |
| Class/Contract C000006613 | C | MTGCX | |
| Class/Contract C000006614 | I | MTGDX | |
IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1031
Type: N-CSRS | Act: 40 | File No.: 811-04917 | Film No.: 08945352
