Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 559 U.S. retirement plans report holding Vanguard 500 index Admiral in their Schedule of Assets, totaling $2.2B 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 | RIVIAN, LLC RIVIAN, LLC 401(K) PLAN | IRVINE CA | 14,247 | $567.3M | $119.5M |
| 2 | ASPHALT MATERIALS, INC. HERITAGE GROUP RETIREMENT SAVINGS PLAN | INDIANAPOLIS IN | 2,325 | $556.8M | $81.5M |
| 3 | MARINHEALTH MEDICAL CENTER MARIN GENERAL HOSPITAL RETIREMENT PLAN |
SAN RAFAEL CA |
| 1,946 |
| $163.7M |
| $64.9M |
| 4 | MARINER WEALTH ADVISORS, LLC MARINER WEALTH ADVISORS, LLC 401(K) PLAN | OVERLAND PARK KS | 1,870 | $278.3M | $51.1M |
| 5 | THE COLONY GROUP, LLC THE COLONY GROUP, LLC 401(K) PROFIT SHARING PLAN | BOSTON MA | 551 | $269.5M | $45.4M |
| 6 | MONROE ENERGY, LLC MONROE ENERGY RETIREMENT PLAN | TRAINER PA | 531 | $186.4M | $38.1M |
| 7 | IMA FINANCIAL GROUP, INC. IMA FINANCIAL GROUP, INC. 401(K) PROFIT SHARING PLAN AND TRUST | WICHITA KS | 2,726 | $317.2M | $35.7M |
| 8 | GEODIS LOGISTICS, LLC GEODIS USA RETIREMENT PLAN | BRENTWOOD TN | 14,100 | $341.3M | $29.3M |
| 9 | GZA GEOENVIRONMENTAL TECHNOLOGIES, INC. GZA RESTATED 401(K) PROFIT SHARING PLAN | NORWOOD MA | 782 | $214.9M | $26.5M |
| 10 | DS SMITH NORTH AMERICA DS SMITH NORTH AMERICA 401K PLAN | ATLANTA GA | 1,634 | $123.9M | $24.3M |
