Minerals Technologies Inc.
US ˙ NYSE ˙ US6031581068

SecurityMTX / Minerals Technologies Inc.
InstitutionQuarry LP
Latest Disclosed Ownership22 shares
Latest Disclosed Value $ 1,560
Quarry LP reports 53.19% decrease in ownership of MTX / Minerals Technologies Inc.

On May 15, 2026 - Quarry LP filed a 13F-HR form disclosing ownership of 22 shares of Minerals Technologies Inc. (US:MTX) valued at $1,560 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 47 shares of Minerals Technologies Inc.. This represents a change in shares of -53.19% during the quarter. The current value of the position is $1,651 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 22 -25 -53.19 2 -50.00 0.0003
2026-02-13 2025-12-31 13F MINERALS TECHNOLOGIES COM 603158106 47 -377 -88.92 3 -92.31 0.0004
2025-11-14 2025-09-30 13F MINERALS TECHNOLOGIES COM 603158106 424 -594 -58.35 26 -53.57 0.0058
2025-08-14 2025-06-30 13F MINERALS TECHNOLOGIES COM 603158106 1,018 -485 -32.27 56 -41.05 0.0119
2025-05-15 2025-03-31 13F MINERALS TECHNOLOGIES COM 603158106 1,503 771 105.33 96 72.73 0.0207
2025-02-14 2024-12-31 13F MINERALS TECHNOLOGIES COM 603158106 732 617 536.52 56 587.50 0.0078
2024-11-14 2024-09-30 13F MINERALS TECHNOLOGIES COM 603158106 115 -805 -87.50 9 -89.47 0.0022
2024-08-16 2024-06-30 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 920 873 1,857.45 77 2,433.33 0.0220
2024-08-14 2024-06-30 13F MINERALS TECHNOLOGIES COM 603158106 920 873 77 0.0219
2024-05-15 2024-03-31 13F MINERALS TECHNOLOGIES COM 603158106 47 -165 -77.83 4 -80.00 0.0007
2024-02-20 2023-12-31 13F/A-1 MINERALS TECHNOLOGIES COM 603158106 212 -860 -80.22 15 -74.14 0.0023
2024-02-14 2023-12-31 13F MINERALS TECHNOLOGIES COM 603158106 212 -860 15 0.0022
2023-11-14 2023-09-30 13F MINERALS TECHNOLOGIES COM 603158106 1,072 227 26.86 59 20.83 0.0137
2023-08-14 2023-06-30 13F MINERALS TECHNOLOGIES COM 603158106 845 845 49 0.0159
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.