Retirement tax questions

My termination letter dtd 10/2/15 states specifically that participation in benefits based on employment status (e.g. Cash Retirement Income Plan, Savings Investment Plan (401k), Long-Term Disability, etc.) will cease as of the date your employee status ceases.  Health insurance benefits extended to the end of the month in which severance ended.  The Cash plan (company money only) would have continued to pay interest but there were no further contributions after Oct15.  Same for the SIP/401k (employee money only).  Thanks very much for your responses, by the way - very helpful to consider.