Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 153 U.S. retirement plans report holding Merck & Co., Inc. in their Schedule of Assets, totaling $145.3M 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 | UNITED PARCEL SERVICE OF AMERICA, INC. UPS GROUP TRUST | ATLANTA GA | — | $42.9B | $28.8M |
| 2 | RTX CORPORATION RTX MASTER RETIREMENT TRUST | FARMINGTON CT | — | $42.1B | $17.2M |
| 3 | TRAVELERS COMPANIES, INC. THE TRAVELERS PENSION PLAN |
| 27,531 |
| $4.2B |
| $12.6M |
| 4 | PACIFIC GAS AND ELECTRIC COMPANY PG&E CORPORATION RETIREMENT MASTER TRUST | OAKLAND CA | — | $17.4B | $12.5M |
| 5 | BOARD OF TRUSTEES, PENSION TRUST FUND FOR OPERATING PENSION TRUST FUND FOR OPERATING ENGINEERS | ALAMEDA CA | 20,793 | $5.4B | $7.6M |
| 6 | RTX CORPORATION RTX CONSOLIDATED PENSION PLAN | FARMINGTON CT | 33,534 | $41.6B | $7.3M |
| 7 | AUTOMATIC DATA PROCESSING, INC. AUTOMATIC DATA PROCESSING, INC. RETIREMENT AND SAVINGS PLAN | ROSELAND NJ | 34,516 | $7.3B | $5.7M |
| 8 | PACIFIC GAS AND ELECTRIC COMPANY PG&E CORPORATION RETIREMENT MASTER TRUST | OAKLAND CA | — | $17.9B | $3.3M |
| 9 | PRINCIPAL FINANCIAL GROUP, INC. PRINCIPAL CASH BALANCE PLAN | DES MOINES IA | 12,410 | $1.5B | $2.9M |
| 10 | AMERICAN AIRLINES, INC. - RETIREMENT THE RETIREMENT BENEFIT PLAN OF AMERICAN AIRLINES, INC. FOR EMPLOYEES REPRESENTED BY THE TRANSPORT WORKERS UNION OF AMERICA, AFL-CIO | FORT WORTH TX | 12,855 | $4.3B | $2.9M |
