MATERION Corp MTRN
CIK 0001104657 · CUSIP 576690101
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $378.65M 3,385,036 shares | 0.01% | — | SEC filing ↗ Nov 13, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $279.34M 2,497,253 shares | 0.01% | -43.35K(-1.70%)Reduced | SEC filing ↗ Nov 13, 2024 | ▾ |
| 03 | Capital Research Global Investors CIK 1422848 · View history | $176.83M 1,580,847 shares | 0.04% | +100.00K(+6.80%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $131.38M 1,174,499 shares | 0.03% | -38.87K(-3.20%)Reduced | SEC filing ↗ Nov 7, 2024 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $108.14M 966,703 shares | 0.00% | -6.84K(-0.70%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 06 | Trigran Investments, Inc. CIK 1336800 · View history | $79.94M 714,622 shares | 8.75% | -46.77K(-6.10%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 07 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. CIK 1021642 · View history | $67.50M 603,445 shares | 0.60% | +64.47K(+12.00%)Added | SEC filing ↗ Nov 6, 2024 | ▾ |
| 08 | ACK Asset Management LLC CIK 1510940 · View history | $56.55M 505,500 shares | 6.99% | 0(0.00%)Unchanged | SEC filing ↗ Nov 13, 2024 | ▾ |
| 09 | SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history | $55.05M 492,103 shares | 0.37% | -6.58K(-1.30%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $52.25M 466,972 shares | 0.00% | +2.95K(+0.60%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 11 | BARROW HANLEY MEWHINNEY & STRAUSS LLC CIK 313028 · View history | $49.59M 443,344 shares | 0.16% | -659(-0.10%)Reduced | SEC filing ↗ Nov 13, 2024 | ▾ |
| 12 | Copeland Capital Management, LLC CIK 1541743 · View history | $45.19M 403,953 shares | 0.79% | +754(+0.20%)Added | SEC filing ↗ Oct 21, 2024 | ▾ |
| 13 | ROYAL BANK OF CANADA CIK 1000275 · View history | $35.98M 321,641 shares | 0.01% | -2.87K(-0.90%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $35.74M 319,531 shares | 0.01% | +639(+0.20%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 15 | Bank of New York Mellon Corp CIK 1390777 · View history | $35.33M 315,814 shares | 0.01% | -34.43K(-9.80%)Reduced | SEC filing ↗ Nov 12, 2024 | ▾ |
| 16 | Aberdeen Group plc CIK 1716774 · View history | $28.94M 258,728 shares | 0.05% | +42.72K(+19.80%)Added | SEC filing ↗ Oct 25, 2024 | ▾ |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $28.30M 252,985 shares | 0.01% | +5.94K(+2.40%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 18 | SEGALL BRYANT & HAMILL, LLC CIK 1006378 · View history | $24.73M 221,086 shares | 0.34% | +11.20K(+5.30%)Added | SEC filing ↗ Nov 8, 2024 | ▾ |
| 19 | MORGAN STANLEY CIK 895421 · Amended · View history | $24.68M 220,666 shares | 0.00% | +15.13K(+7.40%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 20 | GAMCO INVESTORS, INC. ET AL CIK 807249 · View history | $21.73M 194,250 shares | 0.22% | -11.10K(-5.40%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
Showing 20 / 253 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 253 reporting institutions.
This page includes 20 of 253 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 253 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"576690101","quarter":"2024Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.