Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 1 U.S. retirement plans report holding Vanguard Market Institutional Index Fund in their Schedule of Assets, totaling $6.8M in parsed positions. Matched on the normalized security name across each plan’s latest filing and ranked by position size.
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| # | Sponsor / Plan | Location | Participants | Plan assets (EOY) | Position |
|---|---|---|---|---|---|
| 1 | U.A. LOCAL NO. 343 PENSION TRUST U. A. LOCAL NO. 343 DEFINED BENEFIT PLAN | VACAVILLE CA | 250 | $159.7M | $6.8M |
