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 | $278.01M 3,406,963 shares | 0.01% | -82.60K(-2.40%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $202.15M 2,477,371 shares | 0.00% | -45.77K(-1.80%)Reduced | SEC filing ↗ May 9, 2025 | ▾ |
| 03 | Capital Research Global Investors CIK 1422848 · View history | $151.99M 1,862,644 shares | 0.03% | +24.16K(+1.30%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 04 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $87.59M 1,073,452 shares | 0.02% | -53.59K(-4.80%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
| 05 | STATE STREET CORP CIK 93751 · View history | $82.82M 1,014,958 shares | 0.00% | +48.60K(+5.00%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 06 | Trigran Investments, Inc. CIK 1336800 · View history | $64.85M 794,765 shares | 9.54% | +56.94K(+7.70%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 07 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. CIK 1021642 · View history | $54.92M 673,007 shares | 0.55% | +47.24K(+7.50%)Added | SEC filing ↗ Apr 17, 2025 | ▾ |
| 08 | BARROW HANLEY MEWHINNEY & STRAUSS LLC CIK 313028 · View history | $42.15M 516,558 shares | 0.15% | +42.95K(+9.10%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $38.91M 476,718 shares | 0.00% | +12.96K(+2.80%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 10 | ACK Asset Management LLC CIK 1510940 · View history | $37.47M 459,200 shares | 6.15% | -35.60K(-7.20%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
| 11 | Copeland Capital Management, LLC CIK 1541743 · View history | $32.76M 401,457 shares | 0.66% | -11.34K(-2.70%)Reduced | SEC filing ↗ Apr 24, 2025 | ▾ |
| 12 | ROYAL BANK OF CANADA CIK 1000275 · Amended · View history | $24.07M 295,018 shares | 0.01% | -17.34K(-5.60%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 13 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history | $23.59M 289,106 shares | 0.05% | +84.48K(+41.30%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 14 | NORTHERN TRUST CORP CIK 73124 · View history | $23.55M 288,611 shares | 0.00% | +6.60K(+2.30%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $21.92M 268,644 shares | 0.00% | +4.45K(+1.70%)Added | SEC filing ↗ Sep 15, 2025 | ▾ |
| 16 | Aberdeen Group plc CIK 1716774 · View history | $20.28M 248,565 shares | 0.04% | +36.08K(+17.00%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 17 | SEGALL BRYANT & HAMILL, LLC CIK 1006378 · View history | $19.64M 240,648 shares | 0.30% | -662(-0.30%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 18 | SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history | $18.79M 230,291 shares | 0.13% | -117.58K(-33.80%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 19 | MORGAN STANLEY CIK 895421 · View history | $17.42M 213,457 shares | 0.00% | -1.36K(-0.60%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 20 | Bank of New York Mellon Corp CIK 1390777 · View history | $16.61M 203,542 shares | 0.00% | -103.05K(-33.60%)Reduced | SEC filing ↗ Apr 29, 2025 | ▾ |
Showing 20 / 254 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 254 reporting institutions.
This page includes 20 of 254 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 254 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":"2025Q1","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.