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 S000023548 | AlphaSimplex Global Alternatives Fund | ||
| Class/Contract C000069269 | Class A | GAFAX | |
| Class/Contract C000069270 | Class C | GAFCX | |
| Class/Contract C000069271 | Class Y | GAFYX | |
| Class/Contract C000128763 | Class N | GAFNX | |
| Class/Contract C000188565 | Class T | GAFTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000023783 | Vaughan Nelson Mid Cap Fund | ||
| Class/Contract C000069913 | Class A | VNVAX | |
| Class/Contract C000069914 | Class C | VNVCX | |
| Class/Contract C000069915 | Class Y | VNVYX | |
| Class/Contract C000128764 | Class N | VNVNX | |
| Class/Contract C000188566 | Class T | VNVTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000029564 | AlphaSimplex Managed Futures Strategy Fund | ||
| Class/Contract C000090725 | Class A | AMFAX | |
| Class/Contract C000090726 | Class C | ASFCX | |
| Class/Contract C000090727 | Class Y | ASFYX | |
| Class/Contract C000188567 | Class T | MFSTX | |
| Class/Contract C000190721 | Class N | AMFNX | |
| 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 | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000037523 | Vaughan Nelson Select Fund | ||
| Class/Contract C000115831 | Class A | VNSAX | |
| Class/Contract C000115832 | Class C | VNSCX | |
| Class/Contract C000115833 | Class Y | VNSYX | |
| Class/Contract C000188120 | Class N | VNSNX | |
| Class/Contract C000188121 | Class T | VNSTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000052136 | |||
| Series S000053353 | Loomis Sayles Global Growth Fund | ||
| Class/Contract C000167848 | Class A | LSAGX | |
| Class/Contract C000167849 | Class C | LSCGX | |
| Class/Contract C000167850 | Class Y | LSGGX | |
| Class/Contract C000188122 | Class N | LSNGX | |
| Class/Contract C000188123 | Class T | LGGTX | |
IRS No.: 041990692 | State of Incorp.: MA
Type: 497 | Act: 33 | File No.: 002-11101 | Film No.: 23523607