Minerals Technologies Inc.
Minerals Technologies Inc. (MTX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MTX · as of Mar 31, 2025
Ownership Breakdown
263
Institutional Holders
▼ 3 vs Q4
$1.97B
Total Inst. Value
▼ $376.34M vs Q4
31.01M
Shares Outstanding
freeFloat 98.55%
30.96M
13F Shares Held
▲ 171,666 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MTX largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. industrial inorganic chemicals | 5.56M | 17.43% | 17.43% | $353.53B | May 2, 2025 | ▼ 149.3K |
VANGUARD GROUP INC industrial inorganic chemicals | 3.67M | 11.52% | 11.52% | $233.58B | May 9, 2025 | ▼ 47.2K |
DIMENSIONAL FUND ADVISORS LP industrial inorganic chemicals | 2.15M | 6.76% | 6.76% | $136.99B | May 13, 2025 | ▼ 74.3K |
FMR LLC industrial inorganic chemicals | 2.00M | 6.26% | 6.26% | $126.89B | May 12, 2025 | ▲ 234.1K |
MACQUARIE GROUP LTD industrial inorganic chemicals | 1.79M | 5.61% | 5.61% | $113.69B | Aug 14, 2025 | ▲ 49.9K |
STATE STREET CORP industrial inorganic chemicals | 1.27M | 3.97% | 3.97% | $80.45B | May 15, 2025 | ▼ 46.2K |
AMERICAN CENTURY COMPANIES INC industrial inorganic chemicals | 1.07M | 3.35% | 3.35% | $67.90B | May 13, 2025 | ▲ 206.9K |
GEODE CAPITAL MANAGEMENT, LLC industrial inorganic chemicals | 906.5K | 2.84% | 2.84% | $57.64B | May 13, 2025 | ▲ 33.4K |
SNYDER CAPITAL MANAGEMENT L P industrial inorganic chemicals | 610.3K | 1.91% | 1.91% | $38.80B | May 15, 2025 | ▼ 20.0K |
BOSTON TRUST WALDEN CORP industrial inorganic chemicals | 604.2K | 1.89% | 1.89% | $38.41B | Apr 21, 2025 | ▼ 10.3K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
22
Increased
+1.81M shares2
New Positions
first time holders24
Decreased
−1.33M shares0
Sold Out
fully exitedNet shares change (top 50)
+482.1K
+1.81M / −1.33M
Net new holders
+0
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MTX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
10
Buy transactions
3
Sell transactions
3.33
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
ROBINSON MARC E director | May 20, 2026 | Award | 1,908.146 | — | — | 26.9K | Form 4 ↗ |
PITTMAN CAROLYN K director | May 20, 2026 | Award | 1,908.146 | — | — | 20.6K | Form 4 ↗ |
Motwani Rocky director | May 20, 2026 | Award | 1,908.146 | — | — | 8.1K | Form 4 ↗ |
JOHNSON KRISTINA M director | May 20, 2026 | Award | 1,908.146 | — | — | 6.0K | Form 4 ↗ |
CLARK ROBERT L director | May 20, 2026 | Award | 1,908.146 | — | — | 33.7K | Form 4 ↗ |
CARMOLA JOHN J director | May 20, 2026 | Award | 1,908.146 | — | — | 27.9K | Form 4 ↗ |
Breunig Joseph C. director | May 20, 2026 | Award | 1,908.146 | — | — | 21.5K | Form 4 ↗ |
DIETRICH DOUGLAS T CHAIRMAN AND CEO | May 14, 2026 | Sale | 21,568 | $81.53 | $1.76M | 176.0K | Form 4 ↗ |
JORDAN TIMOTHY Vice President | May 11, 2026 | Sale | 6,000 | $80.27 | $481.6K | 1.3K | Form 4 ↗ |
FEDER FRANKLIN director | Apr 1, 2026 | Award | 238.871 | — | — | 23.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Minerals Technologies Inc. (MTX) is primarily owned by institutional investors, who hold approximately 99.8% of total shares outstanding. Company insiders own approximately 1.45%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Minerals Technologies Inc. is BLACKROCK, INC., holding approximately 5.56 million shares — equal to 17.43% of outstanding shares — as of March 31, 2025.
A total of 263 institutional investors currently hold MTX stock, with a combined institutional value of approximately $1.97 billion as of the most recent 13F filing period.
Frequently asked questions
MTX ownershipMinerals Technologies Inc. (MTX) is primarily owned by institutional investors, who hold approximately 99.8% of shares. The largest shareholder is BLACKROCK, INC. with a 17.43% stake. Company insiders hold 1.45%. Data sourced from SEC Form 13F as of March 31, 2025.