Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionQuadrant Capital Group Llc
Latest Disclosed Ownership1,446 shares
Latest Disclosed Value $ 102,551
Quadrant Capital Group Llc reports 1.23% decrease in ownership of MTX / Minerals Technologies Inc.

On May 13, 2026 - Quadrant Capital Group Llc filed a 13F-HR/A form disclosing ownership of 1,446 shares of Minerals Technologies Inc. (US:MTX) valued at $102,550 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,464 shares of Minerals Technologies Inc.. This represents a change in shares of -1.23% during the quarter. The current value of the position is $109,650 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)
2026-05-13 2026-03-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 1,446 -18 -1.23 103 14.61 0.0031
2026-05-11 2026-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,446 -18 49 0.0369
2026-02-12 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,464 -2 -0.14 89 -2.20 0.0027
2025-11-13 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,466 -2,931 -66.66 91 -62.40 0.0030
2025-08-13 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 4,397 -360 -7.57 242 -19.87 0.0087
2025-05-13 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 4,757 3,826 410.96 302 331.43 0.0112
2025-02-13 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 931 0 0.00 71 -1.41 0.0049
2024-11-12 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 931 -14 -1.48 72 -8.97 0.0050
2024-08-12 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 945 0 0.00 79 9.86 0.0058
2024-05-15 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 945 148 18.57 71 26.79 0.0056
2024-02-08 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 797 135 20.39 57 55.56 0.0049
2023-11-14 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 662 -227 -25.53 36 -29.41 0.0036
2023-08-10 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 889 -845 -48.73 51 -50.96 0.0051
2023-05-11 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,734 356 25.83 105 25.30 0.0109
2023-02-13 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,378 713 107.22 84 151.52 0.0095
2022-11-10 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 665 231 53.23 33 22.22 0.0044
2022-08-09 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 434 23 5.60 27 0.00 0.0036
2022-05-06 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 411 9 2.24 27 -6.90 0.0033
2022-02-01 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 402 -7 -1.71 29 0.00 0.0035
2021-11-12 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 409 21 5.41 29 -6.45 0.0040
2021-08-09 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 388 0 0.00 31 6.90 0.0045
2021-05-12 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 388 0 0.00 29 20.83 0.0047
2021-02-16 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 388 0 0.00 24 20.00 0.0045
2020-11-13 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 388 0 0.00 20 11.11 0.0044
2020-08-13 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 388 131 50.97 18 80.00 0.0040
2020-05-15 2020-03-31 13F Minerals Technologies Com 603158106 257 -69 -21.17 10 -41.18 0.0017
2020-03-19 2019-12-31 13F/A-1 Minerals Technologies Com 603158106 326 0 0.00 17 6.25 0.0021
2020-02-03 2019-12-31 13F Minerals Technologies Com 603158106 326 0 17 57.4452
2019-10-24 2019-09-30 13F Minerals Technologies COM 603158106 326 250 328.95 16 300.00 0.0025
2019-07-24 2019-06-30 13F Minerals Technologies COM 603158106 76 19 33.33 4 33.33 0.0006
2019-04-29 2019-03-31 13F Minerals Technologies COM 603158106 57 20 54.05 3 0.0005
2019-01-17 2018-12-31 13F Minerals Technologies COM 603158106 37 -9 -19.57 0 -100.00
2018-10-29 2018-09-30 13F Minerals Technologies COM 603158106 46 0 0.00 2 -33.33 0.0006
2018-08-08 2018-06-30 13F Minerals Technologies COM 603158106 46 0 0.00 3 50.00 0.0011
2018-05-10 2018-03-31 13F Minerals Technologies COM 603158106 46 0 0.00 2 0.00 0.0007
2018-01-31 2017-12-31 13F Minerals Technologies COM 603158106 46 0 0.00 2 0.00 0.0008
2017-10-13 2017-09-30 13F Minerals Technologies COM 603158106 46 27 142.11 2 0.0008
2017-08-14 2017-06-30 13F Minerals Technologies COM 603158106 19 0 0.00 0 -100.00
2017-04-10 2017-03-31 13F Minerals Technologies COM 603158106 19 0 0.00 1 0.00 0.0004
2017-01-11 2016-12-31 13F Minerals Technologies COM 603158106 19 0 0.00 1 0.00 0.0005
2016-10-25 2016-09-30 13F Minerals Technologies COM 603158106 19 0 0.00 1 0.00 0.0007
2016-07-28 2016-06-30 13F Minerals Technologies COM 603158106 19 19 1 0.0007
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.