Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000008033 | Natixis Oakmark Fund | ||
| Class/Contract C000021802 | Class A | NEFOX | |
| Class/Contract C000021804 | Class C | NECOX | |
| Class/Contract C000021805 | Class Y | NEOYX | |
| Class/Contract C000188564 | Class T | NOKTX | |
| Class/Contract C000190720 | Class N | NOANX | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000030600 | Loomis Sayles Strategic Alpha Fund | ||
| Class/Contract C000094853 | Class A | LABAX | |
| Class/Contract C000094854 | Class C | LABCX | |
| Class/Contract C000094855 | Class Y | LASYX | |
| Class/Contract C000188568 | Class T | LSATX | |
| Class/Contract C000190722 | Class N | LASNX | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000034097 | Loomis Sayles Senior Floating Rate and Fixed Income Fund | ||
| Class/Contract C000105118 | Class A | LSFAX | |
| Class/Contract C000105119 | Class C | LSFCX | |
| Class/Contract C000105120 | Class Y | LSFYX | |
| Class/Contract C000188118 | Class N | LSFNX | |
| Class/Contract C000188119 | Class T | LSFTX | |
IRS No.: 041990692 | State of Incorp.: MA
Type: 497 | Act: 33 | File No.: 002-11101 | Film No.: 241047128