Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004112 | Advisory Foreign Fixed Income II Portfolio | ||
| Class/Contract C000011533 | Advisory Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004113 | Value Portfolio | ||
| Class/Contract C000011534 | Adviser Class | MPPVAX | |
| Class/Contract C000011535 | Institutional Class | MPVLX | |
| Class/Contract C000011536 | Investment Class | MPVIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004114 | Core Plus Fixed Income Portfolio | ||
| Class/Contract C000011537 | Adviser Class | MFXAX | |
| Class/Contract C000011538 | Institutional Class | MPCXX | |
| Class/Contract C000011539 | Investment Class | MAFIX | |
| Class/Contract C000011540 | Stable Class | MPFIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004115 | High Yield Portfolio | ||
| Class/Contract C000011542 | Adviser Class | MAHYX | |
| Class/Contract C000011543 | Institutional Class | MPHYX | |
| Class/Contract C000011544 | Investment Class | MPHIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004116 | Intermediate Duration Portfolio | ||
| Class/Contract C000011546 | Institutional Class | MAIDX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004117 | International Fixed Income Portfolio | ||
| Class/Contract C000011547 | Institutional Class | MPIFX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004118 | Investment Grade Fixed Income Portfolio | ||
| Class/Contract C000011548 | Adviser Class | ||
| Class/Contract C000011549 | Institutional Class | MPFDX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004119 | Limited Duration Portfolio | ||
| Class/Contract C000011550 | Institutional Class | MPLDX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004120 | Municipal Portfolio | ||
| Class/Contract C000011551 | Institutional Class | MPMFX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004122 | Advisory Foreign Fixed Income Portfolio | ||
| Class/Contract C000011553 | Advisory Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004123 | Advisory Mortgage Portfolio | ||
| Class/Contract C000011554 | Advisory Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004124 | Balanced Portfolio | ||
| Class/Contract C000011555 | Adviser Class | MBAAX | |
| Class/Contract C000011556 | Institutional Class | MPBAX | |
| Class/Contract C000011557 | Investment Class | MABIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004125 | Investment Grade Credit Advisory Portfolio | ||
| Class/Contract C000011558 | Advisory Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004126 | Equity Portfolio | ||
| Class/Contract C000011559 | Investment Class | ||
| Class/Contract C000011560 | Adviser Class | MEAVX | |
| Class/Contract C000011561 | Institutional Class | MPEQX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004127 | Mid Cap Growth Portfolio | ||
| Class/Contract C000011562 | Adviser Class | MACGX | |
| Class/Contract C000011563 | Institutional Class | MPEGX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004128 | US Mid Cap Value Portfolio | ||
| Class/Contract C000011564 | Adviser Class | MMCAX | |
| Class/Contract C000011565 | Institutional Class | MPMVX | |
| Class/Contract C000011566 | Investment Class | MPMIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000004129 | US Small Cap Value Portfolio | ||
| Class/Contract C000011567 | Adviser Class | MCVAX | |
| Class/Contract C000011568 | Institutional Class | MPSCX | |
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000005590 | Core Fixed Income Portfolio | ||
| Class/Contract C000015254 | Institutional Class | ||
| Class/Contract C000015255 | Advisory Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000010219 | Equities Plus Portfolio | ||
| Class/Contract C000028274 | Institutional Class | ||
| Class/Contract C000028275 | Advisor Class | ||
| Status | Name | Ticker Symbol | |
| CIK 0000741375 | |||
| Series S000012836 | Long Duration Fixed Income Portfolio | ||
| Class/Contract C000034704 | Institutional Class | ||
| Class/Contract C000034705 | Adviser Class | ||
IRS No.: 000000000 | State of Incorp.: PA | Fiscal Year End: 0930
Type: N-CSRS | Act: 40 | File No.: 811-03980 | Film No.: 06894611
