United Rentals, Inc.
MX ˙ BMV ˙ US9113631090
SecurityMX:URI / United Rentals, Inc.
InstitutionMariner, LLC
Latest Disclosed Ownership87,373 shares
Latest Disclosed Value $ 63,625,098
Mariner, LLC reports 11.82% increase in ownership of URI / United Rentals, Inc.

On May 13, 2026 - Mariner, LLC filed a 13F-HR form disclosing ownership of 87,373 shares of United Rentals, Inc. (MX:URI) valued at $63,625,098 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 78,139 shares of United Rentals, Inc.. This represents a change in shares of 11.82% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F UNITED RENTALS COM 911363109 87,373 9,234 11.82 63,625 0.61 0.0743
2026-02-13 2025-12-31 13F UNITED RENTALS COM 911363109 78,139 -3,328 -4.09 63,239 -18.67 0.0753
2025-11-14 2025-09-30 13F UNITED RENTALS COM 911363109 81,467 -12,580 -13.38 77,758 9.75 0.1005
2025-08-14 2025-06-30 13F UNITED RENTALS COM 911363109 94,047 610 0.65 70,853 20.99 0.1023
2025-05-15 2025-03-31 13F UNITED RENTALS COM 911363109 93,437 -4,912 -4.99 58,560 -15.48 0.0974
2025-02-13 2024-12-31 13F UNITED RENTALS COM 911363109 98,349 7,715 8.51 69,283 -5.60 0.1163
2024-11-13 2024-09-30 13F UNITED RENTALS COM 911363109 90,634 -3,602 -3.82 73,394 20.43 0.1302
2024-08-13 2024-06-30 13F UNITED RENTALS COM 911363109 94,236 -14,877 -13.63 60,943 -22.54 0.1181
2024-05-15 2024-03-31 13F UNITED RENTALS COM 911363109 109,113 1,240 1.15 78,679 27.20 0.1627
2024-02-14 2023-12-31 13F UNITED RENTALS COM 911363109 107,873 3,893 3.74 61,856 33.81 0.1467
2023-11-13 2023-09-30 13F UNITED RENTALS COM 911363109 103,980 -1,585 -1.50 46,226 -1.68 0.1240
2023-08-11 2023-06-30 13F UNITED RENTALS COM 911363109 105,565 -1,430 -1.34 47,015 111,840.48 0.1256
2023-05-15 2023-03-31 13F UNITED RENTALS COM 911363109 106,995 -358 -0.33 42 -99.89 0.1230
2023-02-14 2022-12-31 13F UNITED RENTALS COM 911363109 107,353 6,764 6.72 38,155 40.43 0.1226
2022-11-10 2022-09-30 13F UNITED RENTALS COM 911363109 100,589 17,340 20.83 27,171 34.37 0.1086
2022-08-15 2022-06-30 13F UNITED RENTALS COM 911363109 83,249 4,532 5.76 20,221 -27.68 0.0830
2022-05-13 2022-03-31 13F UNITED RENTALS COM 911363109 78,717 78,717 27,961 0.1055
2019-11-13 2019-09-30 13F UNITED RENTALS COM 911363109 0 -3,968 -100.00 0 -100.00
2019-08-14 2019-06-30 13F UNITED RENTALS COM 911363109 3,968 -133 -3.24 526 12.15 0.0063
2019-05-15 2019-03-31 13F UNITED RENTALS COM 911363109 4,101 4,101 469 0.0067
2019-02-13 2018-12-31 13F UNITED RENTALS COM 911363109 0 -1,302 -100.00 0 -100.00
2018-11-14 2018-09-30 13F UNITED RENTALS COM 911363109 1,302 -248 -16.00 213 -6.99 0.0055
2018-08-14 2018-06-30 13F UNITED RENTALS COM 911363109 1,550 1,550 229 0.0065
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.