Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership8,010 shares
Latest Disclosed Value $ 568,070
Citigroup Inc reports 17.37% decrease in ownership of MTX / Minerals Technologies Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 8,010 shares of Minerals Technologies Inc. (US:MTX) valued at $568,069 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,694 shares of Minerals Technologies Inc.. This represents a change in shares of -17.37% during the quarter. The current value of the position is $601,070 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)
2026-05-11 2026-03-31 13F MINERALS TECHNOLOGIES COM 603158106 8,010 -1,684 -17.37 568 -3.73 0.0002
2026-02-13 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 9,694 -1,613 -14.27 591 -15.95 0.0003
2025-11-10 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 11,307 -19,138 -62.86 702 -58.11 0.0003
2025-08-11 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 30,445 -21,324 -41.19 1,677 -49.06 0.0008
2025-05-12 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 51,769 4,585 9.72 3,291 -8.48 0.0017
2025-02-12 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 47,184 3,032 6.87 3,596 5.46 0.0021
2024-11-12 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 44,152 12,620 40.02 3,410 30.02 0.0020
2024-08-12 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 31,532 7,183 29.50 2,622 43.12 0.0017
2024-05-10 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 24,349 2,241 10.14 1,833 16.24 0.0012
2024-02-09 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 22,108 6,434 41.05 1,577 83.68 0.0011
2023-12-06 2023-09-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 15,674 -7,822 -33.29 858 -36.68 0.0006
2023-11-09 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 15,674 -7,822 858 0.0006
2023-08-10 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 23,496 8,752 59.36 1,355 52.25 0.0009
2023-05-11 2023-03-31 13F MINERALS TECHNOLOGIES COM 603158106 14,744 -4,688 -24.13 891 -24.51 0.0006
2023-02-09 2022-12-31 13F MINERALS TECHNOLOGIES COM 603158106 19,432 3,197 19.69 1,180 47.01 0.0009
2022-11-10 2022-09-30 13F MINERALS TECHNOLOGIES COM 603158106 16,235 10,589 187.55 802 131.79 0.0006
2022-08-10 2022-06-30 13F MINERALS TECHNOLOGIES COM 603158106 5,646 1,320 30.51 346 20.98 0.0003
2022-05-12 2022-03-31 13F MINERALS TECHNOLOGIES COM 603158106 4,326 -7,562 -63.61 286 -67.09 0.0002
2022-02-10 2021-12-31 13F MINERALS TECHNOLOGIES COM 603158106 11,888 5,914 99.00 869 108.39 0.0005
2021-11-10 2021-09-30 13F MINERALS TECHNOLOGIES COM 603158106 5,974 2,524 73.16 417 53.87 0.0002
2021-08-10 2021-06-30 13F MINERALS TECHNOLOGIES COM 603158106 3,450 -14 -0.40 271 3.83 0.0002
2021-05-13 2021-03-31 13F MINERALS TECHNOLOGIES COM 603158106 3,464 -4,842 -58.30 261 -49.42 0.0002
2021-02-11 2020-12-31 13F MINERALS TECHNOLOGIES COM 603158106 8,306 5,541 200.40 516 263.38 0.0003
2020-11-12 2020-09-30 13F MINERALS TECHNOLOGIES COM 603158106 2,765 -14,937 -84.38 142 -82.91 0.0001
2020-08-12 2020-06-30 13F MINERALS TECHNOLOGIES COM 603158106 17,702 6,226 54.25 831 99.28 0.0006
2020-05-12 2020-03-31 13F MINERALS TECHNOLOGIES COM 603158106 11,476 -6,961 -37.76 417 -60.77 0.0004
2020-02-12 2019-12-31 13F MINERALS TECHNOLOGIES COM 603158106 18,437 9,926 116.63 1,063 135.18 0.0008
2019-11-08 2019-09-30 13F MINERALS TECHNOLOGIES COM 603158106 8,511 -598 -6.56 452 -7.38 0.0004
2019-08-12 2019-06-30 13F MINERALS TECHNOLOGIES COM 603158106 9,109 1,421 18.48 488 7.96 0.0004
2019-05-13 2019-03-31 13F MINERALS TECHNOLOGIES COM 603158106 7,688 -132 -1.69 452 12.72 0.0004
2019-02-12 2018-12-31 13F MINERALS TECHNOLOGIES COM 603158106 7,820 1,051 15.53 401 -12.45 0.0004
2018-11-13 2018-09-30 13F MINERALS TECHNOLOGIES COM 603158106 6,769 3,181 88.66 458 69.63 0.0004
2018-08-10 2018-06-30 13F MINERALS TECHNOLOGIES COM 603158106 3,588 2,473 221.79 270 260.00 0.0002
2018-05-11 2018-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,115 166 17.49 75 15.38 0.0001
2018-02-12 2017-12-31 13F MINERALS TECHNOLOGIES COM 603158106 949 -6,346 -86.99 65 -87.40 0.0001
2017-11-13 2017-09-30 13F MINERALS TECHNOLOGIES COM 603158106 7,295 5,699 357.08 516 341.03 0.0004
2017-08-11 2017-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,596 -4,468 -73.68 117 -74.78 0.0001
2017-05-12 2017-03-31 13F MINERALS TECHNOLOGIES COM 603158106 6,064 -58,542 -90.61 464 -90.70 0.0004
2017-02-10 2016-12-31 13F MINERALS TECHNOLOGIES COM 603158106 64,606 28,741 80.14 4,991 96.81 0.0045
2016-11-10 2016-09-30 13F MINERALS TECHNOLOGIES COM 603158106 35,865 31,446 711.61 2,536 910.36 0.0024
2016-08-12 2016-06-30 13F MINERALS TECHNOLOGIES COM 603158106 4,419 -21,105 -82.69 251 -82.70 0.0003
2016-05-13 2016-03-31 13F MINERALS TECHNOLOGIES COM 603158106 25,524 17,835 231.95 1,451 311.05 0.0016
2016-02-12 2015-12-31 13F MINERALS TECHNOLOGIES COM 603158106 7,689 6,540 569.19 353 541.82 0.0004
2015-11-13 2015-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,149 -3,575 -75.68 55 -82.92 0.0001
2015-08-13 2015-06-30 13F MINERALS TECHNOLOGIES COM 603158106 4,724 -8,260 -63.62 322 -66.11 0.0003
2015-05-14 2015-03-31 13F MINERALS TECHNOLOGIES COM 603158106 12,984 -1,592 -10.92 950 -6.03 0.0009
2015-02-17 2014-12-31 13F MINERALS TECHNOLOGIES COM 603158106 14,576 12,797 719.34 1,011 819.09 0.0009
2014-11-14 2014-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,779 779 77.90 110 69.23 0.0001
2014-08-14 2014-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,000 -6,551 -86.76 65 -86.65 0.0001
2014-05-15 2014-03-31 13F MINERALS TECHNOLOGIES COM 603158106 7,551 -25,824 -77.38 487 -75.72 0.0005
2014-02-14 2013-12-31 13F MINERALS TECHNOLOGIES COM 603158106 33,375 -46,756 -58.35 2,006 -49.29 0.0018
2013-11-14 2013-09-30 13F MINERALS TECHNOLOGIES COM 603158106 80,131 62,138 345.35 3,956 431.72 0.0037
2013-08-14 2013-06-30 13F MINERALS TECHNOLOGIES COM 603158106 17,993 17,993 744 0.0007
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.