Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 245 U.S. retirement plans report holding Vanguard Mid-cap Index Admiral Mutual Fund in their Schedule of Assets, totaling $256.2M 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 | BLACK BOX CORPORATION OF PENNSYLVANIA THE BLACK BOX CORPORATION 401(K) SAVINGS PLAN | LAWRENCE PA | 1,418 | $254.8M | $15.1M |
| 2 | USIBELLI COAL MINE, INC. USIBELLI COAL MINE, INC. MASTER TRUST | HEALY AK | — | $72.2M | $6.8M |
| 3 | CHIEF INDUSTRIES INC CHIEF INDUSTRIES, INC. THRIFT PLAN |
GRAND ISLAND NE |
| 1,296 |
| $129.5M |
| $6.5M |
| 4 | NORTHERN COLORADO ANESTHESIA PROFESSIONALS, PLLC NORTHERN COLORADO ANESTHESIA PROFESSIONALS, PLLC 401K PLAN | FORT COLLINS CO | 113 | $66.8M | $6.4M |
| 5 | HUNTERDON HEALTHCARE SYSTEM HUNTERDON HEALTHCARE 403(B) RETIREMENT SAVINGS PLAN | FLEMINGTON NJ | 2,622 | $235.6M | $6.0M |
| 6 | WHITMAN, REQUARDT & ASSOCIATES, LLP WHITMAN, REQUARDT & ASSOCIATES, LLP 401(K) PLAN | BALTIMORE MD | 904 | $174.3M | $5.9M |
| 7 | 4IMPRINT, INC. 4IMPRINT, INC. 401(K) PLAN | OSHKOSH WI | 1,616 | $105.2M | $5.6M |
| 8 | BARRACUDA NETWORKS, INCORPORATED BARRACUDA NETWORKS 401(K) PLAN | CAMPBELL CA | 888 | $134.4M | $5.1M |
| 9 | ALCOTT HR GROUP, LLC THE ALCOTT GROUP 401(K) PLAN | FARMINGDALE NY | 3,057 | $228.2M | $5.0M |
| 10 | PIKE CONSTRUCTION SERVICES, INC. PIKE COMPANIES LIMITED 401(K) SAVINGS AND PROFIT SHARING PLAN | ROCHESTER NY | 344 | $76.0M | $5.0M |
