Minerals Technologies
MTX · NYSE
Who owns MTX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 59.0% of MTX’s shares.
- BlackRock Institutional Trust Company, N.A.14.0%
- Fidelity Management & Research Company LLC10.4%
- Dimensional Fund Advisors, L.P.6.4%
- Vanguard Portfolio Management, LLC6.2%
- Next 6 largest institutions22.0%
- All other shareholders41.0%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 4.35M | 14.02% |
| Fidelity Management & Research Company LLC | 3.22M | 10.37% |
| Dimensional Fund Advisors, L.P. | 1.99M | 6.41% |
| Vanguard Portfolio Management, LLC | 1.93M | 6.22% |
| Nomura Investment Management Business Trust | 1.70M | 5.50% |
| Vanguard Capital Management, LLC | 1.39M | 4.50% |
| State Street Investment Management (US) | 1.27M | 4.08% |
| Geode Capital Management, L.L.C. | 1.03M | 3.32% |
| Fidelity Institutional Asset Management | 743.76K | 2.40% |
| Fidelity Institutional Asset Management Trust Company | 677.53K | 2.18% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 1.89M | 6.09% |
| Nomura Small Cap Core Fund | 1.01M | 3.24% |
| Vanguard Total Stock Market Index Fund | 988.18K | 3.19% |
| iShares Russell 2000 ETF | 812.07K | 2.62% |
| Vanguard Small-Cap Index Fund | 713.01K | 2.30% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $2.24M (2 trades) of MTX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| PITTMAN CAROLYN K | Award | 112 | — |
| Motwani Rocky | Award | 14 | — |
| PITTMAN CAROLYN K | Award | 35 | — |
| ROBINSON MARC E | Award | 45 | — |
| Breunig Joseph C. | Award | 36 | — |
| CLARK ROBERT L | Award | 56 | — |
| CARMOLA JOHN J | Award | 47 | — |
| JOHNSON KRISTINA M | Award | 10 | — |
| PITTMAN CAROLYN K | Award | 99 | — |
| Motwani Rocky | Award | 12 | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Gil CisnerosHouse | Sale | $1K–$15K | Jan 5, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 846.07K
- Days to cover
- 4.56
- % of shares outstanding
- 2.73%
- Average daily volume
- 185.56K
- Change since last report
- −6.0%
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