The pension security trust would be owned by the employer, or, more properly, the plan sponsor. The regular part of the pension plan, the general ongoing contributions, are in the pension plan. They're for the benefit of the employees and are essentially owned by the employees. Then the pension security trust sits on top of that and provides additional security to the whole plan, but this top part is owned by the employer. If the assets rise in value, then the pension security trust becomes larger than necessary; the employer would then have the option of withdrawing some of that money. It would be a tax deduction as it went in; it would be taxable to the employer as the money came out.
On October 21st, 2009. See this statement in context.