United States Lime & Minerals, Inc.
US ˙ NasdaqGS ˙ US9119221029

SecurityUSLM / United States Lime & Minerals, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership4,905 shares
Latest Disclosed Value $ 641,427
Janus Henderson Group Plc ownership in USLM / United States Lime & Minerals, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 4,905 shares of United States Lime & Minerals, Inc. (US:USLM) valued at $640,642 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,905 shares of United States Lime & Minerals, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $525,571 USD.

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)
2026-05-18 2026-03-31 13F/A-1 UNITED STS LIME & MINERALS I COM 911922102 4,905 0 0.00 641 9.39 0.0001
2026-05-15 2026-03-31 13F UNITED STS LIME & MINERALS I COM 911922102 4,905 0 0.00 641 9.39 0.0001
2026-02-17 2025-12-31 13F UNITED STS LIME & MINERALS I COM 911922102 4,905 0 0.00 587 -9.15 0.0003
2025-11-14 2025-09-30 13F UNITED STS LIME & MINERALS I COM 911922102 4,905 0 0.00 646 31.90 0.0003
2025-08-14 2025-06-30 13F UNITED STS LIME & MINERALS I COM 911922102 4,905 -48,438 -90.80 490 -89.71 0.0002
2025-05-15 2025-03-31 13F UNITED STS LIME & MINERALS I COM 911922102 53,343 -2,837 -5.05 4,753 -36.28 0.0026
2025-02-14 2024-12-31 13F UNITED STS LIME & MINERALS I COM 911922102 56,180 6,568 13.24 7,458 53.96 0.0038
2024-11-14 2024-09-30 13F UNITED STS LIME & MINERALS I COM 911922102 49,612 38,091 330.62 4,844 15.50 0.0025
2024-08-14 2024-06-30 13F UNITED STS LIME & MINERALS I COM 911922102 11,521 1,032 9.84 4,194 34.17 0.0022
2024-05-15 2024-03-31 13F UNITED STS LIME & MINERALS I COM 911922102 10,489 9,498 958.43 3,127 1,265.07 0.0017
2024-02-14 2023-12-31 13F UNITED STS LIME & MINERALS I COM 911922102 991 991 230 0.0001
2023-11-14 2023-09-30 13F UNITED STS LIME & MINERALS I COM 911922102 0 -993 -100.00 0 -100.00
2023-08-14 2023-06-30 13F UNITED STS LIME & MINERALS I COM 911922102 993 993 207 0.0001
2022-02-14 2021-12-31 13F UNITED STS LIME & MINERALS I COM 911922102 0 -3,667 -100.00 0 -100.00
2021-11-16 2021-09-30 13F UNITED STS LIME & MINERALS I COM 911922102 3,667 766 26.40 443 9.65 0.0002
2021-08-16 2021-06-30 13F UNITED STS LIME & MINERALS I COM 911922102 2,901 -391 -11.88 404 -8.18 0.0002
2021-05-17 2021-03-31 13F UNITED STS LIME & MINERALS I COM 911922102 3,292 3,292 440 0.0002
2019-02-06 2018-12-31 13F UNITED STATES LIME & MINERAL COM 911922102 0 -12,147 -100.00 0 -100.00
2018-11-09 2018-09-30 13F UNITED STATES LIME & MINERAL COM 911922102 12,147 -87,182 -87.77 959 -88.49 0.0005
2018-08-10 2018-06-30 13F UNITED STATES LIME & MINERAL COM 911922102 99,329 -6,085 -5.77 8,334 8.04 0.0048
2018-05-14 2018-03-31 13F UNITED STATES LIME & MINERAL COM 911922102 105,414 0 0.00 7,714 -5.08 0.0045
2018-03-12 2017-12-31 13F/A-1 UNITED STATES LIME & MINERAL COM 911922102 105,414 -34,336 -24.57 8,127 -30.77 0.0050
2018-02-09 2017-12-31 13F UNITED STATES LIME & MINERAL COM 911922102 105,414 -34,336 8,127
2017-11-14 2017-09-30 13F UNITED STATES LIME & MINERAL COM 911922102 139,750 924 0.67 11,739 7.76 0.0075
2017-08-17 2017-06-30 13F/A-1 UNITED STATES LIME & MINERAL COM 911922102 138,826 138,826 10,894 0.0074
2017-08-14 2017-06-30 13F UNITED STATES LIME & MINERAL COM 911922102 138,826 10,894 0.0074
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.