Filing Form 5330 due to failure to meet minimum funding under IRC4971.

[Guest meggie]

This multiemployer (collectively bargained) defined benefit pension plan has an accumulated funding deficiency. Does each employer participating in the plan have to file a Form 5330 Return of Excise Taxes Related to Employee Benefit Plans or can the board of trustees that act as plan sponsor file one 5330 on behalf of the participating employers. I know each employer has to pay their fair share of the excise tax- but does that necessitate individual filings of From 5330?

Thanks