Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000003669 | MassMutual RetireSMART 2010 Fund | ||
| Class/Contract C000010232 | Class A | MRXAX | |
| Class/Contract C000010233 | Class L | MRXLX | |
| Class/Contract C000010234 | Class N | MRXNX | |
| Class/Contract C000010235 | Class S | MRXSX | |
| Class/Contract C000010236 | Class Y | MRXYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000003675 | MassMutual RetireSMART 2020 Fund | ||
| Class/Contract C000010262 | Class A | MRTAX | |
| Class/Contract C000010263 | Class L | MRTLX | |
| Class/Contract C000010264 | Class N | MRTNX | |
| Class/Contract C000010265 | Class S | MRTSX | |
| Class/Contract C000010266 | Class Y | MRTYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000003676 | MassMutual RetireSMART 2030 Fund | ||
| Class/Contract C000010267 | Class A | MRYAX | |
| Class/Contract C000010268 | Class L | MYRLX | |
| Class/Contract C000010269 | Class N | MRYNX | |
| Class/Contract C000010270 | Class S | MRYSX | |
| Class/Contract C000010271 | Class Y | MRYYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000003677 | MassMutual RetireSMART 2040 Fund | ||
| Class/Contract C000010272 | Class A | MRFAX | |
| Class/Contract C000010273 | Class L | MRFLX | |
| Class/Contract C000010274 | Class N | MFRNX | |
| Class/Contract C000010275 | Class S | MFRSX | |
| Class/Contract C000010276 | Class Y | MRFYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000003678 | MassMutual RetireSMART In Retirement Fund | ||
| Class/Contract C000010277 | Class A | MRDAX | |
| Class/Contract C000010278 | Class L | MDRLX | |
| Class/Contract C000010279 | Class N | MDRNX | |
| Class/Contract C000010280 | Class S | MDRSX | |
| Class/Contract C000010281 | Class Y | MDRYX | |
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000020009 | MassMutual RetireSMART 2050 Fund | ||
| Class/Contract C000056105 | Class N | ||
| Class/Contract C000056106 | Class S | ||
| Class/Contract C000056107 | Class Y | ||
| Class/Contract C000056108 | Class L | ||
| Class/Contract C000056109 | Class A | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000028350 | MassMutual RetireSMART 2015 Fund | ||
| Class/Contract C000086624 | Class A | ||
| Class/Contract C000086625 | Class L | ||
| Class/Contract C000086626 | Class S | ||
| Class/Contract C000086627 | Class Y | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000028351 | MassMutual RetireSMART 2025 Fund | ||
| Class/Contract C000086630 | Class A | ||
| Class/Contract C000086631 | Class L | ||
| Class/Contract C000086632 | Class S | ||
| Class/Contract C000086633 | Class Y | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000028352 | MassMutual RetireSMART 2035 Fund | ||
| Class/Contract C000086634 | Class A | ||
| Class/Contract C000086635 | Class L | ||
| Class/Contract C000086636 | Class S | ||
| Class/Contract C000086637 | Class Y | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000028353 | MassMutual RetireSMART 2045 Fund | ||
| Class/Contract C000086639 | Class A | ||
| Class/Contract C000086640 | Class L | ||
| Class/Contract C000086641 | Class S | ||
| Class/Contract C000086642 | Class Y | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000032893 | MassMutual RetireSMART Conservative Fund | ||
| Class/Contract C000101523 | Class S | ||
| Class/Contract C000101524 | Class Y | ||
| Class/Contract C000101525 | Class L | ||
| Class/Contract C000101526 | Class A | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000032894 | MassMutual RetireSMART Moderate Fund | ||
| Class/Contract C000101527 | Class S | ||
| Class/Contract C000101528 | Class Y | ||
| Class/Contract C000101529 | Class L | ||
| Class/Contract C000101530 | Class A | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000032895 | MassMutual RetireSMART Moderate Growth Fund | ||
| Class/Contract C000101531 | Class Y | ||
| Class/Contract C000101532 | Class L | ||
| Class/Contract C000101533 | Class A | ||
| Class/Contract C000101534 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000916053 | |||
| Series S000032896 | MassMutual RetireSMART Growth Fund | ||
| Class/Contract C000101535 | Class S | ||
| Class/Contract C000101536 | Class Y | ||
| Class/Contract C000101537 | Class L | ||
| Class/Contract C000101538 | Class A | ||
IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 497 | Act: 33 | File No.: 033-73824 | Film No.: 121243195