Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership341,339 shares
Latest Disclosed Value $ 24,207,762
Northern Trust Corp reports 5.69% increase in ownership of MTX / Minerals Technologies Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 341,339 shares of Minerals Technologies Inc. (US:MTX) valued at $24,207,762 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 322,962 shares of Minerals Technologies Inc.. This represents a change in shares of 5.69% during the quarter. The current value of the position is $26,180,701 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)
2026-05-14 2026-03-31 13F MINERALS TECHNOLOGIES COM 603158106 341,339 18,377 5.69 24,208 22.98 0.0032
2026-02-17 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 322,962 -21,180 -6.15 19,685 -7.92 0.0025
2025-11-14 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 344,142 -6,061 -1.73 21,378 10.85 0.0027
2025-08-13 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 350,203 -131,382 -27.28 19,286 -37.01 0.0027
2025-05-13 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 481,585 -17,344 -3.48 30,614 -19.49 0.0045
2025-02-14 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 498,929 43,546 9.56 38,023 8.12 0.0054
2024-11-13 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 455,383 878 0.19 35,169 -6.95 0.0058
2024-08-14 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 454,505 -9,384 -2.02 37,797 8.23 0.0064
2024-05-14 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 463,889 -37,948 -7.56 34,922 -2.41 0.0060
2024-02-13 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 501,837 -1,356 -0.27 35,786 29.87 0.0065
2023-11-13 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 503,193 -2,288 -0.45 27,555 -5.51 0.0053
2023-08-11 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 505,481 -110,568 -17.95 29,161 -21.65 0.0056
2023-05-15 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 616,049 -10,827 -1.73 37,222 -2.21 0.0074
2023-02-13 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 626,876 2,990 0.48 38,064 23.47 0.0080
2022-11-14 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 623,886 -80,982 -11.49 30,827 -28.70 0.0070
2022-08-12 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 704,868 -11,557 -1.61 43,236 -8.77 0.0093
2022-05-13 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 716,425 -26,730 -3.60 47,391 -12.82 0.0083
2022-02-08 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 743,155 -16,209 -2.13 54,363 2.51 0.0089
2021-11-15 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 759,364 -16,206 -2.09 53,034 -13.08 0.0094
2021-08-13 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 775,570 -13,149 -1.67 61,014 2.71 0.0107
2021-05-12 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 788,719 -299,569 -27.53 59,406 -12.13 0.0110
2021-02-11 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,088,288 -22,132 -1.99 67,604 19.14 0.0132
2020-11-16 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,110,420 -18,311 -1.62 56,742 7.11 0.0124
2020-08-14 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,128,731 8,018 0.72 52,973 30.36 0.0126
2020-05-14 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,120,713 -3,329 -0.30 40,637 -37.27 0.0117
2020-02-14 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,124,042 -9,182 -0.81 64,777 7.67 0.0145
2019-11-13 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,133,224 26,046 2.35 60,162 1.55 0.0144
2019-08-13 2019-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,107,178 66,156 6.35 59,245 -3.20 0.0141
2019-05-13 2019-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,041,022 9,468 0.92 61,201 15.56 0.0151
2019-02-12 2018-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,031,554 1,742 0.17 52,960 -23.93 0.0149
2018-11-14 2018-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,029,812 -27,945 -2.64 69,616 -12.65 0.0170
2018-09-18 2018-06-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 1,057,757 29,568 2.88 79,702 15.78 0.0202
2018-08-14 2018-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,060,102 31,913 79,878
2018-05-09 2018-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,028,189 -726 -0.07 68,837 -2.83 0.0179
2018-02-14 2017-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,028,915 -24,324 -2.31 70,841 -4.80 0.0179
2017-11-13 2017-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,053,239 -18,735 -1.75 74,412 -5.17 0.0194
2017-08-11 2017-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,071,974 5,499 0.52 78,468 -3.95 0.0219
2017-05-12 2017-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,066,475 -1,657 -0.16 81,692 -0.99 0.0236
2017-02-13 2016-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,068,132 -31,216 -2.84 82,513 6.18 0.0253
2016-11-09 2016-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,099,348 16,640 1.54 77,713 26.37 0.0242
2016-08-12 2016-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,082,708 -263 -0.02 61,497 0.47 0.0200
2016-08-19 2016-03-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 1,082,971 74,293 7.37 61,207 32.32 0.0203
2016-05-13 2016-03-31 13F Minerals Technologie COMM 603158106 1,082,971 61,567
2016-02-12 2015-12-31 13F Minerals Technologie COMM 603158106 1,008,678 -12,592 -1.23 46,258 -5.95 0.0153
2015-11-12 2015-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,021,270 1,021,270 0.00 49,184 0.0164
2015-08-13 2015-06-30 13F Minerals Technologie COMM 603158106 0 -931,449 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Minerals Technologie COMM 603158106 931,449 10,271 1.11 68,089 6.43 0.0205
2015-02-12 2014-12-31 13F Minerals Technologie COM 603158106 921,178 3,070 0.33 63,977 12.92 0.0193
2014-11-13 2014-09-30 13F Minerals Technologie COMM 603158106 918,108 -3,109 -0.34 56,656 -6.22 0.0178
2014-08-14 2014-06-30 13F MINERALS TECHNOLOGIES com 603158106 921,217 -24,059 -2.55 60,414 -1.00 0.0188
2014-05-14 2014-03-31 13F MINERALS TECHNOLOGIES COMM 603158106 945,276 -32,800 -3.35 61,027 3.87 0.0192
2014-02-21 2013-12-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 978,076 30,127 3.18 58,753 25.54 0.0188
2014-02-12 2013-12-31 13F MINERALS TECHNOLOGIES COM 603158106 978,076 58,753
2013-11-13 2013-09-30 13F MINERALS TECHNOLOGIES COM 603158106 947,949 -14,562 -1.51 46,800 17.62 0.0165
2013-08-09 2013-06-30 13F MINERALS TECHNOLOGIES COM 603158106 962,511 962,511 39,789 0.0144
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.