Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership8,978 shares
Latest Disclosed Value $ 637
Amalgamated Bank reports 1.59% decrease in ownership of MTX / Minerals Technologies Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 8,978 shares of Minerals Technologies Inc. (US:MTX) valued at $636,720 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 9,123 shares of Minerals Technologies Inc.. The current value of the position is $688,613 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)
2026-05-08 2026-03-31 13F MINERALS TECHNOLOGIES COM 603158106 8,978 -145 -1.59 1 0.0049
2026-02-05 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 9,123 22 0.24 1 0.0040
2025-10-29 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 9,101 75 0.83 1 0.0040
2025-08-04 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 9,026 -63 -0.69 0 0.0038
2025-04-25 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 9,089 -197 -2.12 1 0.0049
2025-02-04 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 9,286 -209 -2.20 1 0.0058
2024-10-30 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 9,495 -368 -3.73 1 0.0060
2024-08-12 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 9,863 -449 -4.35 1 0.0070
2024-04-23 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 10,312 -1,842 -15.16 1 0.0066
2024-02-06 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 12,154 -493 -3.90 1 0.0069
2023-11-08 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 12,647 -422 -3.23 1 0.0059
2023-08-11 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 13,069 -527 -3.88 1 0.0061
2023-05-02 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 13,596 -1,242 -8.37 1 0.0070
2023-02-10 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 14,838 89 0.60 1 -100.00 0.0080
2022-11-09 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 14,749 -6,583 -30.86 729 -44.31 0.0070
2022-08-15 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 21,332 149 0.70 1,309 -6.57 0.0122
2022-08-25 2022-03-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 21,183 -1,010 -4.55 1,401 -13.68 0.0109
2022-06-30 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 21,183 -1,010 1,401 0.0111
2022-02-15 2021-12-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 22,193 -77 -0.35 1,623 4.37 0.0120
2022-02-15 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 22,193 -77 1,623 0.0120
2021-10-29 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 22,270 -2,558 -10.30 1,555 -20.38 0.0131
2021-08-16 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 24,828 21,783 715.37 1,953 752.84 0.0157
2021-05-13 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,045 -201 -6.19 229 13.37 0.0086
2021-02-12 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 3,246 3,246 202 0.0077
2020-08-10 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 0 -5,659 -100.00 0 -100.00
2020-05-13 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 5,659 -160 -2.75 205 -38.81 0.0050
2020-02-13 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 5,819 399 7.36 335 16.32 0.0062
2019-11-13 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 5,420 -109 -1.97 288 -2.70 0.0061
2019-08-14 2019-06-30 13F MINERALS TECHNOLOGIES COM 603158106 5,529 307 5.88 296 -3.58 0.0069
2019-05-15 2019-03-31 13F MINERALS TECHNOLOGIES COM 603158106 5,222 175 3.47 307 18.53 0.0074
2019-02-15 2018-12-31 13F MINERALS TECHNOLOGIES COM 603158106 5,047 -86 -1.68 259 -25.36 0.0073
2018-11-14 2018-09-30 13F MINERALS TECHNOLOGIES COM 603158106 5,133 -46 -0.89 347 -11.03 0.0086
2018-07-18 2018-06-30 13F MINERALS TECHNOLOGIES COM 603158106 5,179 152 3.02 390 15.73 0.0095
2018-05-22 2018-03-31 13F MINERALS TECHNOLOGIES COM 603158106 5,027 -81 -1.59 337 -4.26 0.0089
2018-02-13 2017-12-31 13F MINERALS TECHNOLOGIES COM 603158106 5,108 317 6.62 352 4.14 0.0095
2017-11-09 2017-09-30 13F MINERALS TECHNOLOGIES COM 603158106 4,791 -221 -4.41 338 -7.90 0.0105
2017-08-10 2017-06-30 13F MINERALS TECHNOLOGIES COM 603158106 5,012 196 4.07 367 -0.54 0.0120
2017-05-12 2017-03-31 13F MINERALS TECHNOLOGIES COM 603158106 4,816 -12 -0.25 369 -1.07 0.0184
2017-02-14 2016-12-31 13F MINERALS TECHNOLOGIES COM 603158106 4,828 585 13.79 373 24.33 0.0169
2016-11-15 2016-09-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 4,243 1 0.02 300 0.33 0.0174
2016-08-16 2016-06-30 13F MINERALS TECHNOLOGIES COM 603158106 4,242 418 10.93 299 37.79 0.0173
2016-05-11 2016-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,824 3,824 0.00 217 0.0211
2015-11-04 2015-09-30 13F MINERALS TECHNOLOGIES COM 603158106 0 -3,751 -100.00 0 -100.00
2015-07-10 2015-06-30 13F MINERALS TECHNOLOGIES COM 603158106 3,751 3,751 256 0.0251
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.