Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionFmr Llc
Latest Disclosed Ownership4,264,458 shares
Ownership 13.70%
Fmr Llc ownership in MTX / Minerals Technologies Inc.

2026-05-06 - Fmr Llc has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,264,458 shares of Minerals Technologies Inc. (US:MTX). This represents 13.7 percent ownership of the company. In their previous filing dated 2026-02-06 , Fmr Llc had reported owning 3,124,775 shares, indicating an increase of 36.47 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2026-05-06 2026-05-06 13G/A 3,124,775 4,264,458 36.47 13.70 37.00
2026-02-06 2026-02-06 13G/A 2,723,354 3,124,775 14.74 10.00 14.94
2026-02-05 2026-02-05 13G/A 2,304,507 2,723,354 18.18 8.70 19.18
2025-11-05 2025-11-05 13G/A 1,761,925 2,304,507 30.79 7.30 32.73
2025-02-12 2025-02-12 13G 1,761,925 5.50

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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 4,264,458 1,541,104 56.59 302,435 82.20 0.0032
2026-02-17 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 2,723,354 418,847 18.18 165,988 15.95 0.0085
2025-11-13 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 2,304,507 406,968 21.45 143,156 36.99 0.0074
2025-08-14 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,897,539 -98,489 -4.93 104,497 -17.65 0.0059
2025-05-12 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,996,028 234,103 13.29 126,888 -5.50 0.0081
2025-02-13 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 1,761,925 527,206 42.70 134,276 40.81 0.0080
2024-11-13 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,234,719 482,674 64.18 95,357 52.47 0.0058
2024-08-13 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 752,045 673,047 851.98 62,540 951.80 0.0040
2024-05-13 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 78,998 1,672 2.16 5,947 7.83 0.0004
2024-02-13 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 77,326 21,362 38.17 5,514 79.96 0.0004
2023-11-13 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 55,964 21,140 60.71 3,065 52.59 0.0003
2023-08-11 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 34,824 31,203 861.72 2,009 821.10 0.0002
2023-08-11 2023-03-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 3,621 25 0.70 219 0.00 0.0000
2023-05-11 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,621 25 219 0.0000
2023-02-13 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 3,596 -631 -14.93 218 4.31 0.0000
2022-11-10 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 4,227 1,008 31.31 209 6.09 0.0000
2022-08-12 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 3,219 -48 -1.47 197 -8.80 0.0000
2022-05-13 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,267 3,040 1,339.21 216 1,170.59 0.0000
2022-02-14 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 227 0 0.00 17 13.33 0.0000
2022-02-14 2021-09-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 227 -125,160 -99.82 15 -99.85 0.0000
2021-11-15 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 227 -125,160 15 0.0000
2021-08-13 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 125,387 12,400 10.97 9,864 15.91 0.0008
2021-05-14 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 112,987 17,224 17.99 8,510 43.05 0.0007
2021-02-08 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 95,763 10,400 12.18 5,949 36.38 0.0005
2020-11-13 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 85,363 -71 -0.08 4,362 8.81 0.0004
2020-08-24 2020-06-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 85,434 162 0.19 4,009 29.66 0.0004
2020-08-13 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 85,434 162 4,009 98.4894
2020-05-14 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 85,272 76,855 913.09 3,092 536.21 0.0004
2020-02-07 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 8,417 400 4.99 486 14.35 0.0001
2019-11-13 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 8,017 284 3.67 425 2.66 0.0001
2019-08-13 2019-06-30 13F MINERALS TECHNOLOGIES COM 603158106 7,733 -799 -9.36 414 -17.37 0.0000
2019-05-13 2019-03-31 13F MINERALS TECHNOLOGIES COM 603158106 8,532 8,530 426,500.00 501 0.0001
2019-02-13 2018-12-31 13F MINERALS TECHNOLOGIES COM 603158106 2 -21,808 -99.99 0 -100.00
2018-11-09 2018-09-30 13F MINERALS TECHNOLOGIES COM 603158106 21,810 0 0.00 1,474 -10.29 0.0002
2018-08-10 2018-06-30 13F MINERALS TECHNOLOGIES COM 603158106 21,810 1,210 5.87 1,643 19.14 0.0002
2018-05-14 2018-03-31 13F MINERALS TECHNOLOGIES COM 603158106 20,600 -1,890 -8.40 1,379 -10.92 0.0002
2018-02-12 2017-12-31 13F MINERALS TECHNOLOGIES COM 603158106 22,490 820 3.78 1,548 1.11 0.0002
2017-11-13 2017-09-30 13F MINERALS TECHNOLOGIES COM 603158106 21,670 5,510 34.10 1,531 29.42 0.0002
2017-08-29 2017-06-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 16,160 16,160 1,183 0.0001
2017-08-11 2017-06-30 13F MINERALS TECHNOLOGIES COM 603158106 16,160 1,183 0.0001
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.