Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008191 | Balanced Portfolio | ||
| Class/Contract C000022314 | Class I | NBABX | |
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008192 | Small-Cap Growth Portfolio | ||
| Class/Contract C000022315 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008194 | Growth Portfolio | ||
| Class/Contract C000022317 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008195 | Guardian Portfolio | ||
| Class/Contract C000022318 | Class I | ||
| Class/Contract C000022319 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008197 | International Equity Portfolio | ||
| Class/Contract C000022321 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008198 | Short Duration Bond Portfolio | ||
| Class/Contract C000022322 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008199 | Mid-Cap Growth Portfolio | ||
| Class/Contract C000022323 | Class I | ||
| Class/Contract C000022324 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008200 | Large Cap Value Portfolio | ||
| Class/Contract C000022325 | Class I | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008201 | Mid Cap Intrinsic Value Portfolio | ||
| Class/Contract C000022326 | Class I | ||
| Class/Contract C000022327 | Class S | ||
| Status | Name | Ticker Symbol | |
| CIK 0000736913 | |||
| Series S000008202 | Socially Responsive Portfolio | ||
| Class/Contract C000022328 | Class I | ||
| Class/Contract C000035621 | Class S | ||
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: N-CSRS | Act: 40 | File No.: 811-04255 | Film No.: 131055979
