MTRN Institutional Ownership
Top institutional (13F) holders of MTRN and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
43
Institutional value
$3.96B
Top holder
BlackRock, Inc.
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Top holders
| Holder | Filed | Value |
|---|---|---|
| BlackRock, Inc.holding company | Aug 7, 2026 | $1.03B |
| STATE STREET CORPORATIONinvestment advisor | Sep 22, 2026 | $433.05M |
| Vanguard Portfolio Managementinvestment advisor | Aug 13, 2026 | $415.32M |
| Capital Research Global Investorsinvestment advisor | Aug 12, 2026 | $297.53M |
| Vanguard Capital Managementinvestment advisor | Aug 13, 2026 | $278.82M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | Aug 12, 2026 | $175.79M |
| Dimensional Fund Advisors LPinvestment advisor | Aug 11, 2026 | $171.87M |
| Fisher Asset Management, LLCinvestment advisor | Aug 4, 2026 | $147.28M |
| MORGAN STANLEYinvestment advisor | Aug 13, 2026 | $122.27M |
| T. Rowe Price Associates, Inc.investment advisor | Aug 14, 2026 | $97.93M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | Aug 14, 2026 | $80.58M |
| NORTHERN TRUST CORPinvestment advisor | Aug 13, 2026 | $78.71M |
| GOLDMAN SACHS GROUP INCinvestment advisor | Aug 14, 2026 | $70.14M |
| Capital World Investorsinvestment advisor | May 13, 2026 | $60.03M |
| Invesco Ltd.investment advisor | Aug 14, 2026 | $59.51M |
| BANK OF AMERICA CORP /DE/investment advisor | Aug 14, 2026 | $51.48M |
| Bank of New York Mellon Corpholding company | Aug 6, 2026 | $49.06M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | Aug 14, 2026 | $47.09M |
| ROYAL BANK OF CANADAinvestment advisor | Aug 14, 2026 | $45.9M |
| JPMORGAN CHASE & COinvestment advisor | Aug 12, 2026 | $31.59M |
| CITADEL ADVISORS LLCinvestment advisor | Sep 1, 2026 | $26.81M |
| Ameriprise Financial, Inc.holding company | Aug 14, 2026 | $22.79M |
| FMR LLCinvestment advisor | Aug 13, 2026 | $22.51M |
| JANE STREET GROUP, LLCholding company | Aug 14, 2026 | $20.93M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | Aug 14, 2026 | $20.77M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.