Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership17,295 shares
Latest Disclosed Value $ 1,226,609
Quantinno Capital Management LP reports 14.25% increase in ownership of MTX / Minerals Technologies Inc.

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 17,295 shares of Minerals Technologies Inc. (US:MTX) valued at $1,226,561 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,138 shares of Minerals Technologies Inc.. This represents a change in shares of 14.25% during the quarter. The current value of the position is $1,326,526 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)
2026-05-15 2026-03-31 13F MINERALS TECHNOLOGIES COM 603158106 17,295 2,157 14.25 1,227 32.97 0.0020
2026-02-17 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 15,138 5,266 53.34 923 50.41 0.0019
2025-11-14 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 9,872 3,564 56.50 613 76.66 0.0017
2025-08-14 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 6,308 1,406 28.68 347 11.58 0.0015
2025-05-12 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 4,902 628 14.69 312 -4.31 0.0020
2025-02-14 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 4,274 96 2.30 326 0.93 0.0032
2024-11-14 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 4,178 366 9.60 323 1.58 0.0042
2024-08-14 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 3,812 48 1.28 317 12.01 0.0057
2024-05-14 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,764 56 1.51 283 7.20 0.0062
2024-02-14 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 3,708 3,708 264 0.0092
2023-08-04 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 0 -3,440 -100.00 0 -100.00
2023-05-03 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,440 -21 -0.61 208 -0.95 0.0138
2023-02-13 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 3,461 3,461 210 0.0157
2022-08-15 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 0 -3,074 -100.00 0 -100.00
2022-05-12 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,074 0 0.00 203 -9.78 0.0310
2022-02-14 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 3,074 196 6.81 225 11.94 0.0407
2021-11-15 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 2,878 0 0.00 201 -11.06 0.2244
2021-08-16 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 2,878 0 0.00 226 4.15 0.2562
2021-05-17 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 2,878 -2,561 -47.09 217 -35.80 0.2365
2021-02-09 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 5,439 0 0.00 338 21.58 0.2613
2020-11-16 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 5,439 0 0.00 278 9.02 0.1859
2020-08-14 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 5,439 -4,078 -42.85 255 -26.09 0.2515
2020-05-15 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 9,517 4,091 75.40 345 10.22 0.2154
2020-02-14 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 5,426 -149 -2.67 313 5.74 0.1970
2019-11-14 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 5,575 5,575 296 0.1994
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.