Who owns Minerals Technologies (MTX)
Which tracked institutional funds hold MTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MTX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
74 tracked funds added or opened MTX while 48 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
MTX’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes MTX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MTX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 270 tracked filers holding MTX, 167 increased or opened the position and 122 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in MTX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 13
- Clark Capital Management Group, Inc.$9M
- LAZARD ASSET MANAGEMENT LLC$5M
- Integrated Quantitative Investments LLC$2M
- Vest Financial, LLC$2M
- BRIDGEWAY CAPITAL MANAGEMENT, LLC$1M
- Verition Fund Management LLC$1M
Full exits 26
- GW&K Investment Management, LLC$23M
- LSV ASSET MANAGEMENT$19M
- CSM Advisors, LLC$15M
- HRT FINANCIAL LP$6M
- JANE STREET GROUP, LLC$4M
- MILLENNIUM MANAGEMENT LLC$2M
Largest adds
- BlackRock, Inc.$126M
- FMR LLC$41M
- NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$23M
- FIRST TRUST ADVISORS LP$23M
- AMERIPRISE FINANCIAL INC$15M
- JPMORGAN CHASE & CO$15M
Largest trims
- BRANDES INVESTMENT PARTNERS, LP$38M
- AMERICAN CENTURY COMPANIES INC$32M
- NORGES BANK$8M
- Nuveen, LLC$7M
- Allspring Global Investments Holdings, LLC$6M
- SG Capital Management LLC$5M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 4,890,106 | $362M | 16.4% | 2026-Q2 |
| FMR LLC added | 4,637,632 | $343M | 15.5% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 1,989,019 | $147M | 6.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,930,086 | $143M | 6.5% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 1,704,059 | $126M | 5.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,394,141 | $103M | 4.7% | 2026-Q2 |
| STATE STREET CORP added | 1,265,488 | $94M | 4.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,028,272 | $76M | 3.4% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 652,901 | $48M | 2.2% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 607,837 | $45M | 2.0% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 550,338 | $41M | 1.8% | 2026-Q2 |
| SNYDER CAPITAL MANAGEMENT L P trimmed | 488,512 | $36M | 1.6% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 477,498 | $35M | 1.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 381,498 | $28M | 1.3% | 2026-Q2 |
| NORTHERN TRUST CORP added | 360,785 | $27M | 1.2% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 331,415 | $25M | 1.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 302,840 | $22M | 1.0% | 2026-Q2 |
| Nuveen, LLC trimmed | 299,921 | $22M | 1.0% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 288,101 | $21M | 1.0% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 287,309 | $22M | 1.0% | 2026-Q2 |
| BRANDES INVESTMENT PARTNERS, LP trimmed | 286,039 | $21M | 1.0% | 2026-Q2 |
| MORGAN STANLEY added | 285,367 | $21M | 1.0% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 277,370 | $21M | 0.9% | 2026-Q2 |
| Bank of New York Mellon Corp added | 273,586 | $20M | 0.9% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC trimmed | 259,973 | $19M | 0.9% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL | 254,500 | $19M | 0.9% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC added | 246,045 | $18M | 0.8% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 218,235 | $16M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 206,276 | $15M | 0.7% | 2026-Q2 |
| Invesco Ltd. added | 189,463 | $14M | 0.6% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 188,056 | $14M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 180,322 | $13M | 0.6% | 2026-Q2 |
| ROYCE & ASSOCIATES LP added | 160,947 | $12M | 0.5% | 2026-Q2 |
| GLENMEDE TRUST CO NA trimmed | 156,163 | $12M | 0.5% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 130,594 | $10M | 0.4% | 2026-Q2 |
| Clark Capital Management Group, Inc. new | 127,962 | $9M | 0.4% | 2026-Q2 |
| SG Capital Management LLC trimmed | 109,389 | $8M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 106,558 | $8M | 0.4% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 105,836 | $8M | 0.4% | 2026-Q2 |
| GABELLI FUNDS LLC added | 97,930 | $7M | 0.3% | 2026-Q2 |
| UBS Group AG trimmed | 96,834 | $7M | 0.3% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. trimmed | 89,792 | $7M | 0.3% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 85,217 | $6M | 0.3% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 82,643 | $6M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 80,832 | $6M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 79,069 | $6M | 0.3% | 2026-Q2 |
| Legal & General Group Plc trimmed | 69,485 | $5M | 0.2% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC added | 68,704 | $5M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 60,700 | $4M | 0.2% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P added | 60,689 | $4M | 0.2% | 2026-Q2 |
| Creative Planning added | 57,671 | $4M | 0.2% | 2026-Q2 |
| GREAT LAKES ADVISORS, LLC added | 54,580 | $4M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 53,596 | $4M | 0.2% | 2026-Q2 |
| Skylands Capital, LLC trimmed | 51,779 | $4M | 0.2% | 2026-Q2 |
| DEAN INVESTMENT ASSOCIATES, LLC added | 49,938 | $4M | 0.2% | 2026-Q2 |
| ISTHMUS PARTNERS, LLC added | 47,903 | $4M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 38,424 | $3M | 0.1% | 2026-Q2 |
| Dean Capital Management added | 36,306 | $3M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 36,016 | $3M | 0.1% | 2026-Q2 |
| Aufman Associates Inc trimmed | 36,011 | $3M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 35,009 | $2M | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 34,697 | $3M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 33,728 | $2M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 33,581 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 32,955 | $2M | 0.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 30,577 | $2M | 0.1% | 2026-Q2 |
| CORBYN INVESTMENT MANAGEMENT INC/MD trimmed | 30,299 | $2M | 0.1% | 2026-Q2 |
| Legato Capital Management LLC added | 30,167 | $2M | 0.1% | 2026-Q2 |
| Empowered Funds, LLC added | 29,833 | $2M | 0.1% | 2026-Q2 |
| Atom Investors LP added | 28,775 | $2M | 0.1% | 2026-Q2 |
| Integrated Quantitative Investments LLC new | 27,561 | $2M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 27,128 | $2M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 26,666 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 26,058 | $2M | 0.1% | 2026-Q2 |
| Vest Financial, LLC added | 24,383 | $2M | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 24,007 | $2M | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 23,283 | $2M | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 23,274 | $2M | 0.1% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 23,000 | $2M | 0.1% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 22,392 | $2M | 0.1% | 2026-Q2 |
| Kimelman & Baird, LLC | 21,532 | $2M | 0.1% | 2026-Q2 |
| Edgestream Partners, L.P. trimmed | 20,980 | $2M | 0.1% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 20,000 | $1M | 0.1% | 2026-Q2 |
| Horizon Investments, LLC added | 18,584 | $1M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 18,336 | $1M | 0.1% | 2026-Q2 |
| OP Asset Management Ltd | 18,079 | $1M | 0.1% | 2026-Q2 |
| Verition Fund Management LLC added | 17,720 | $1M | 0.1% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC added | 17,519 | $1M | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 17,372 | $1M | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 16,745 | $1M | 0.1% | 2026-Q2 |
| Illinois Municipal Retirement Fund added | 16,703 | $1M | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 16,405 | $1M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 16,246 | $1M | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 16,058 | $1M | 0.1% | 2026-Q2 |
| DIVERSIFIED TRUST CO added | 15,817 | $1M | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 15,753 | $1M | 0.1% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 15,654 | $1M | 0.1% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 15,489 | $1M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 14,801 | $1M | 0.0% | 2026-Q2 |
| State of Tennessee, Department of Treasury trimmed | 14,497 | $1M | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.