Based on U.S. Department of Labor Form 5500 filings (plan years 2022–2024), 64 U.S. retirement plans report holding 1 Investment in Master Fund in their Schedule of Assets, totaling $6.1B 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 | ULLICO INVESTMENT ADVISORS INC ULLICO INFRASTRUCTURE TAX EXEMPT FUND LP | SILVER SPRING MD | — | $5.3B | $5.3B |
| 2 | TRUSTEES OF THE PLUMBERS PENSION FUND, LOCAL 130, U.A. PLUMBERS' PENSION FUND, LOCAL 130, U.A. | CHICAGO IL | 3,098 | $1.7B | $63.4M |
| 3 | INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS' PENSION BENEFIT FUND |
WASHINGTON DC |
| 472,935 |
| $2.8B |
| $35.6M |
| 4 | BD OF TR OPER ENG CONS. INDUSTRY MISCELLANEOUS PENSION FUND OPERATING ENG CONS IND MISC. PENSION FUND | PITTSBURGH PA | 3,934 | $845.6M | $34.8M |
| 5 | TRUSTEES OF MINNESOTA & NORTH DAKOTA BRICKLAYERS & ALLIED CRAFTWORKERS MINNESOTA & NORTH DAKOTA BRICKLAYERS AND ALLIED CRAFTWORKERS PENSION FUND | MENDOTA HEIGHTS MN | 1,310 | $480.8M | $29.5M |
| 6 | TRUSTEES OF CONSTRUCTION WORKERS - LAKE COUNTY PENSION CONSTRUCTION WORKERS PENSION TRUST FUND - LAKE COUNTY AND VICINITY PENSION PLAN | MERRILLVILLE IN | 3,051 | $591.3M | $28.6M |
| 7 | BOARD OF TRUSTEES OF MASSACHUSETTS LABORERS HEALTH AND WELFARE FUND MASSACHUSETTS LABORERS' HEALTH AND WELFARE FUND | BURLINGTON MA | 11,214 | $632.1M | $28.5M |
| 8 | BOARD OF TRUSTEES OF CHICAGO & VICINITY LABORERS' DISTRICT COUNCIL H&W CHICAGO & VICINITY LABORERS' DISTRICT COUNCIL HEAL | WESTCHESTER IL | 11,150 | $705.1M | $27.9M |
| 9 | BOARD OF TRUSTEES, PENSION FUND OF LOCAL NO. ONE OF I.A.T.S.E. PENSION FUND OF LOCAL NO. ONE OF I. A. T. S. E. | NEW YORK NY | 2,260 | $664.8M | $26.2M |
| 10 | BOARD OF TRUSTEES MASON TENDERS DISTRICT COUNCIL PENSION FUND MASON TENDERS' DISTRICT COUNCIL PENSION FUND | NEW YORK NY | 8,766 | $2.0B | $25.6M |
