Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 129 U.S. retirement plans report holding Vanguard Institutional Index Fund Mutual fund - in their Schedule of Assets, totaling $5.7B 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 | WINDSTREAM SERVICES LLC WINDSTREAM 401(K) PLAN | LITTLE ROCK AR | 8,623 | $1.3B | $360.7M |
| 2 | CHRISTIANA CARE HEALTH SERVICES INC CHRISTIANA CARE 403(B) PLAN | WILMINGTON DE | 14,679 | $1.9B | $293.3M |
| 3 | CABOT CORPORATION CABOT 401(K) PLAN |
| 1,054 |
| $875.6M |
| $175.6M |
| 4 | VS SERVICE COMPANY, LLC VICTORIA'S SECRET & CO. 401(K) SAVINGS AND RETIREMENT PLAN | REYNOLDSBURG OH | 15,828 | $894.9M | $160.5M |
| 5 | X CORP. X CORP. 401(K) PLAN | SAN FRANCISCO CA | 823 | $574.3M | $144.4M |
| 6 | TIFFANY AND COMPANY TIFFANY & COMPANY EMPLOYEE P/S & RETIREMENT SAVINGS PLAN | NEW YORK NY | 5,277 | $966.1M | $139.8M |
| 7 | NEW YORK LIFE INSURANCE COMPANY GROUP PLAN FOR NEW YORK LIFE RETIRED AGENTS AND EMPLOYEES | NEW YORK NY | 7,942 | $1.1B | $132.6M |
| 8 | MERCURY GENERAL CORPORATION MERCURY GENERAL CORPORATION PROFIT SHARING PLAN | LOS ANGELES CA | 4,207 | $940.9M | $130.9M |
| 9 | OHIO FARMERS INSURANCE COMPANY WESTFIELD EMPLOYEE RETIREMENT SAVINGS PLAN | WESTFIELD CENTER OH | 2,616 | $515.5M | $128.0M |
| 10 | ONEOK, INC. ONEOK, INC. 401(K) PLAN | TULSA OK | 5,150 | $1.4B | $127.9M |
