Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 12 U.S. retirement plans report holding MassMutual MassMutual Mid Cap Growth Fund; Class I in their Schedule of Assets, totaling $48.7M in parsed positions. Matched on the normalized security name across each plan’s latest filing and ranked by position size.
Open any plan below to unlock verified email + phone for its decision-makers — the Form 5500 signer, CFO, and HR & Benefits leads.
| # | Sponsor / Plan | Location | Participants | Plan assets (EOY) | Position |
|---|---|---|---|---|---|
| 1 | ON SEMICONDUCTOR CORPORATION ONSEMI 401(K) PLAN | SCOTTSDALE AZ | 3,995 | $1.2B | $14.7M |
| 2 | SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC ONSEMI 401(K) PLAN | SCOTTSDALE AZ | 3,794 | $1.3B | $14.1M |
| 3 | RADIOLOGY PARTNERS, INC. RADIOLOGY PARTNERS, INC. PARTNER PLAN |
AUSTIN TX |
| 1,428 |
| $1.0B |
| $7.2M |
| 4 | PIH HEALTH, INC PIH HEALTH, INC. 403(B) PLAN | WHITTIER CA | 7,342 | $423.3M | $6.9M |
| 5 | RADIOLOGY PARTNERS INC RADIOLOGY PARTNERS, INC. 401(K) PROFIT SHARING PLAN | AUSTIN TX | 4,389 | $412.4M | $2.0M |
| 6 | BANNER ENGINEERING CORP BANNER ENGINEERING CORP. PROFIT SHARING RETIREMENT SAVINGS PLAN AND TRUST | PLYMOUTH MN | 1,005 | $191.6M | $1.0M |
| 7 | PIH HEALTH PIH HEALTH, INC. 401(A) PLAN | WHITTER CA | 7,079 | $193.6M | $849K |
| 8 | PIH HEALTH GOOD SAMARITAN HOSPITAL THE GOOD SAMARITAN HOSPITAL 401(K) RETIREMENT SAVINGS PLAN | LOS ANGELES CA | 1,228 | $234.7M | $637K |
| 9 | NEBRASKA FURNITURE MART, INC. THE NEBRASKA FURNITURE MART, INC. PROFIT SHARING PLAN | OMAHA NE | 4,640 | $400.2M | $537K |
| 10 | RADIOLOGY PARTNERS INC RADIOLOGY PARTNERS, INC. ASSOCIATE PLAN | AUSTIN TX | 814 | $129.7M | $528K |
