Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionComerica Bank
Latest Disclosed Ownership15,077 shares
Latest Disclosed Value $ 918,940
Comerica Bank reports 6.07% decrease in ownership of MTX / Minerals Technologies Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 15,077 shares of Minerals Technologies Inc. (US:MTX) valued at $918,943 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 16,051 shares of Minerals Technologies Inc.. This represents a change in shares of -6.07% during the quarter. The current value of the position is $1,156,406 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)
2026-01-29 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 15,077 -974 -6.07 919 -7.92 0.0030
2025-11-14 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 16,051 -43 -0.27 997 12.53 0.0038
2025-08-14 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 16,094 -206 -1.26 886 -14.48 0.0034
2025-05-14 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 16,300 -400 -2.40 1,036 -18.55 0.0044
2025-02-14 2024-12-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 16,700 -435 -2.54 1,273 -3.85 0.0051
2025-02-14 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 16,700 -435 1,273 0.0043
2024-11-14 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 17,135 1,773 11.54 1,323 3.60 0.0052
2024-08-15 2024-06-30 13F MINERALS TECHNOLOGIES COMMON 603158106 15,362 -1,847 -10.73 1,278 -1.39 0.0053
2024-05-16 2024-03-31 13F MINERALS TECHNOLOGIES COMMON 603158106 17,209 1,954 12.81 1,295 19.14 0.0056
2024-02-14 2023-12-31 13F MINERALS TECHNOLOGIES COMMON 603158106 15,255 99 0.65 1,088 31.12 0.0050
2023-11-21 2023-09-30 13F MINERALS TECHNOLOGIES COMMON 603158106 15,156 -134,063 -89.84 830 0.0043
2023-08-22 2023-06-30 13F MINERALS TECHNOLOGIES EQU 603158106 149,219 130,022 677.30 0 -100.00
2023-01-26 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 19,197 -5,953 -23.67 1 -99.93 0.0098
2022-10-28 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 25,150 9,692 62.70 1,379 40.86 0.0116
2022-08-02 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 15,458 -475 -2.98 979 -5.77 0.0080
2022-04-27 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 15,933 295 1.89 1,039 -5.46 0.0075
2022-02-18 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 15,638 185 1.20 1,099 0.46 0.0081
2021-11-22 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 15,453 -3,219 -17.24 1,094 -22.63 0.0066
2021-08-26 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 18,672 -300 -1.58 1,414 -4.91 0.0084
2021-04-28 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 18,972 -1,128 -5.61 1,487 11.22 0.0089
2021-01-28 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 20,100 -537 -2.60 1,337 10.50 0.0085
2020-10-30 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 20,637 -380 -1.81 1,210 20.52 0.0088
2020-07-31 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 21,017 871 4.32 1,004 25.97 0.0077
2020-05-01 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 20,146 18 0.09 797 -28.20 0.0073
2020-02-07 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 20,128 -35 -0.17 1,110 9.68 0.0084
2019-10-31 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 20,163 -153 -0.75 1,012 -2.50 0.0080
2019-08-02 2019-06-30 13F MINERALS TECHNOLOGIES COM 603158106 20,316 -2,183 -9.70 1,038 -25.64 0.0083
2019-05-02 2019-03-31 13F MINERALS TECHNOLOGIES COM 603158106 22,499 -279 -1.22 1,396 9.66 0.0113
2019-02-06 2018-12-31 13F MINERALS TECHNOLOGIES COM 603158106 22,778 415 1.86 1,273 0.39 0.0108
2018-11-01 2018-09-30 13F MINERALS TECHNOLOGIES COM 603158106 22,363 -61,833 -73.44 1,268 -79.85 0.0102
2018-08-01 2018-06-30 13F MINERALS TECHNOLOGIES COM 603158106 84,196 -1,074 -1.26 6,294 2.59 0.0440
2018-05-01 2018-03-31 13F MINERALS TECHNOLOGIES COM 603158106 85,270 1,732 2.07 6,135 -3.17 0.0438
2018-02-02 2017-12-31 13F MINERALS TECHNOLOGIES COM 603158106 83,538 19,182 29.81 6,336 37.41 0.0422
2017-11-06 2017-09-30 13F MINERALS TECHNOLOGIES COM 603158106 64,356 -5 -0.01 4,611 -1.52 0.0334
2017-08-03 2017-06-30 13F MINERALS TECHNOLOGIES COM 603158106 64,361 267 0.42 4,682 -8.91 0.0350
2017-05-03 2017-03-31 13F MINERALS TECHNOLOGIES COM 603158106 64,094 1,260 2.01 5,140 3.55 0.0390
2017-02-08 2016-12-31 13F MINERALS TECHNOLOGIES COM 603158106 62,834 38,956 163.15 4,964 199.22 0.0393
2016-08-11 2016-06-30 13F MINERALS TECHNOLOGIES COM 603158106 23,878 578 2.48 1,659 17.99 0.0143
2016-05-11 2016-03-31 13F MINERALS TECHNOLOGIES COM 603158106 23,300 -743 -3.09 1,406 49.26 0.0126
2016-02-05 2015-12-31 13F MINERALS TECHNOLOGIES COM 603158106 24,043 32 0.13 942 -18.51 0.0092
2015-11-12 2015-09-30 13F MINERALS TECHNOLOGIES COM 603158106 24,011 -23,773 -49.75 1,156 -64.50 0.0109
2015-08-13 2015-06-30 13F MINERALS TECHNOLOGIES COM 603158106 47,784 23,849 99.64 3,256 86.06 0.0140
2015-05-15 2015-03-31 13F MINERALS TECHNOLOGIES COM 603158106 23,935 -24,107 -50.18 1,750 -47.54 0.0148
2015-02-13 2014-12-31 13F MINERALS TECHNOLOGIES COM 603158106 48,042 23,364 94.68 3,336 119.04 0.0144
2014-10-21 2014-09-30 13F MINERALS TECHNOLOGIES COM 603158106 24,678 477 1.97 1,523 -4.03 0.0134
2014-08-12 2014-06-30 13F MINERALS TECHNOLOGIES COM 603158106 24,201 -2,898 -10.69 1,587 -9.26 0.0135
2014-05-15 2014-03-31 13F MINERALS TECHNOLOGIES COM 603158106 27,099 278 1.04 1,749 8.57 0.0134
2014-02-11 2013-12-31 13F MINERALS TECHNOLOGIES COM 603158106 26,821 -3,941 -12.81 1,611 6.06 0.0125
2013-11-12 2013-09-30 13F MINERALS TECHNOLOGIES COM 603158106 30,762 587 1.95 1,519 21.81 0.0106
2013-08-13 2013-06-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 30,175 30,175 1,247 0.0102
2013-08-08 2013-06-30 13F MINERALS TECHNOLOGIES COM 603158106 149,419 6,175
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.