Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 1 U.S. retirement plans report holding Massachusetts Investors Growth Stock Fund R6 Registered Investment Company in their Schedule of Assets, totaling $540K 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 | TREEHOUSE TREEHOUSE 403(B) RETIREMENT PLAN | SEATTLE WA | 178 | $9.1M | $540K |
