Stocks › MTX
MINERALS TECHNOLOGIES INC
MTX·NYSE·
United States·USD
United States·USD$65.98
-0.22 (-0.33%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
MTX
MINERALS TECHNOLOGIES INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
MTXS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of MTX by members of U.S. Congress · 8 on record · 2 in the last 12 months
Whale Activity
Position changes in MTX reported for 2026-06-30 by 8 tracked institutional filers
- Increased3
- New0
- Held0
- Decreased2
- Closed3
- No prior filing0
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 4.9M | $361.7M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | $142.8M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | $103.1M | increased |
| D. E. Shaw & Co., Inc. | 288.1K | $21.3M | decreased |
| TWO SIGMA INVESTMENTS, LP | 34.7K | $2.6M | decreased |
| Citadel Advisors LLC | 0 | $0 | closed |
| Bridgewater Associates | 0 | $0 | closed |
| Millennium Management LLC | 0 | $0 | closed |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by MTX insiders, by quarter · Form 4
Recent Insider Transactions
1,583 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| DIETRICH DOUGLAS TCHAIRMAN AND CEO · Director | Sale | −21.6K | $81.53 | $1.8M | May 14, 2026 | Form 4 ↗ |
| DIETRICH DOUGLAS TCHAIRMAN AND CEO · Director | Option exercise | +21.6K | $78.03 | $1.7M | May 14, 2026 | Form 4 ↗ |
| JORDAN TIMOTHYVice President | Sale | −6,000 | $80.27 | $482K | May 11, 2026 | Form 4 ↗ |
| DIETRICH DOUGLAS TCHAIRMAN AND CEO · Director | Tax withholding | −6,152 | $68.89 | $424K | Jan 26, 2026 | Form 4 ↗ |
| DIETRICH DOUGLAS TCHAIRMAN AND CEO · Director | Option exercise | +11.1K | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| CUTLER ERINVP, Human Resources | Tax withholding | −520 | $68.89 | $36K | Jan 26, 2026 | Form 4 ↗ |
| CUTLER ERINVP, Human Resources | Option exercise | +1,195 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| CIPOLLA MICHAELVICE PRESIDENT | Tax withholding | −660 | $68.89 | $45K | Jan 26, 2026 | Form 4 ↗ |
| CIPOLLA MICHAELVICE PRESIDENT | Option exercise | +1,292 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| ARGIRAKIS BRETTGroup President | Tax withholding | −1,163 | $68.89 | $80K | Jan 26, 2026 | Form 4 ↗ |
| ARGIRAKIS BRETTGroup President | Option exercise | +2,672 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| Hastings Jonathan JSenior Vice President | Tax withholding | −1,327 | $68.89 | $91K | Jan 26, 2026 | Form 4 ↗ |
| Hastings Jonathan JSenior Vice President | Option exercise | +3,051 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| JORDAN TIMOTHYVice President | Tax withholding | −981 | $68.89 | $68K | Jan 26, 2026 | Form 4 ↗ |
| JORDAN TIMOTHYVice President | Option exercise | +1,917 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| MONAGLE DJ IIIGroup President | Tax withholding | −1,947 | $68.89 | $134K | Jan 26, 2026 | Form 4 ↗ |
| MONAGLE DJ IIIGroup President | Option exercise | +3,519 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| ALDAG ERIKSVP FINANCE AND TREASURY, CFO | Tax withholding | −1,019 | $68.89 | $70K | Jan 26, 2026 | Form 4 ↗ |
| ALDAG ERIKSVP FINANCE AND TREASURY, CFO | Option exercise | +1,841 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| DIETRICH DOUGLAS TCHAIRMAN AND CEO · Director | Tax withholding | −6,092 | $68.77 | $419K | Jan 23, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding MTX · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 1.9M | $138.2M | 0.12% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 983.4K | $72.7M | 0.00% | Jun 30, 2026 |
| Nomura Small Cap Core Fund Delaware Group Equity Funds V | 931.3K | $71.7M | 1.30% | May 29, 2026 |
| iShares Russell 2000 ETF iShares Trust | 815.6K | $60.3M | 0.07% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 710.4K | $52.5M | 0.03% | Jun 30, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 657.9K | $50.7M | 0.02% | May 31, 2026 |
| Fidelity Stock Selector Small Cap Fund Fidelity Capital Trust | 661.9K | $50.5M | 0.68% | Jul 31, 2026 |
| Global X U.S. Infrastructure Development ETF GLOBAL X FUNDS | 546.0K | $42.0M | 0.31% | May 31, 2026 |
| Fidelity Small Cap Discovery Fund Fidelity Concord Street Trust | 488.1K | $37.2M | 1.64% | Jul 31, 2026 |
| U.S. SMALL CAP VALUE PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 454.5K | $34.6M | 0.18% | Jul 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list MTX's shares (CUSIP 603158106), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 4.6M shares15.0%
Aug 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 4.6M shares15.0%
Aug 6, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 4.3M shares13.7%
May 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 4.3M shares13.7%
May 6, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming minerals technologies as client
- CROSSROADS STRATEGIES, LLCMINERALS TECHNOLOGIES INC. · 2026 Q3 · MAN—
Filing ↗
Government Contracts
Federal awards to MINERALS TECHNOLOGIES INC · USAspending
No federal contract awards found for MINERALS TECHNOLOGIES INC.
U.S. Patents
Recent USPTO applications naming MINERALS TECHNOLOGIES INC
No USPTO patent applications found for MINERALS TECHNOLOGIES INC.
Annual Financials
From MTX's 10-K filings · XBRL
No annual XBRL figures on record for MTX. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 2-for-1Stock splitDec 12, 2012
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 8.01, 9.01Other eventsOct 2, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsOct 1, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsJul 30, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsJul 22, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsJun 29, 2026
EDGAR ↗ - 8-K · Items 5.07, 8.01, 9.01Shareholder vote · Other eventsMay 20, 2026
EDGAR ↗
About MINERALS TECHNOLOGIES INC
From SEC EDGAR company records
Industry (SIC 2810)Industrial Inorganic Chemicals
SectorMaterials
HeadquartersNEW YORK, NY
IncorporatedDE
SEC CIK0000891014 ↗