Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 2 U.S. retirement plans report holding Vanguard Institutional Index Fund Institutional Plus Registered Investment Company in their Schedule of Assets, totaling $500.2M 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 | BLOCK, INC. BLOCK 401(K) PLAN | OAKLAND CA | 8,800 | $1.2B | $261.2M |
| 2 | AMETEK, INC. THE AMETEK RETIREMENT AND SAVINGS PLAN | BERWYN PA | 8,402 | $1.9B | $239.0M |
