Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 1 U.S. retirement plans report holding MFS Investment Management MFS Mass Invest Trust R6 Fund in their Schedule of Assets, totaling $172K in parsed positions. Matched on the normalized security name across each plan’s latest filing and ranked by position size.
| # | Sponsor / Plan | Location | Participants | Plan assets (EOY) | Position |
|---|---|---|---|---|---|
| 1 | WELDSTAR COMPANY WELDSTAR COMPANY COMBINED RETIREMENT PLAN | AURORA IL | 110 | $33.4M | $172K |
