Materion Corporation
Materion Corporation (MTRN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MTRN · as of Mar 31, 2025
Ownership Breakdown
255
Institutional Holders
▲ 10 vs Q4
$1.61B
Total Inst. Value
▼ $323.72M vs Q4
20.80M
Shares Outstanding
freeFloat 98.78%
19.72M
13F Shares Held
▲ 174,631 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MTRN largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. metal forgings & stampings | 3.41M | 16.40% | 16.40% | $278.01B | May 2, 2025 | ▼ 82.6K |
VANGUARD GROUP INC metal forgings & stampings | 2.48M | 11.92% | 11.92% | $202.15B | May 9, 2025 | ▼ 45.8K |
CAPITAL RESEARCH GLOBAL INVESTORS metal forgings & stampings | 1.86M | 8.96% | 8.96% | $151.99B | May 12, 2025 | ▲ 24.2K |
DIMENSIONAL FUND ADVISORS LP metal forgings & stampings | 1.07M | 5.17% | 5.17% | $87.59B | May 13, 2025 | ▼ 53.6K |
STATE STREET CORP metal forgings & stampings | 1.01M | 4.88% | 4.88% | $82.82B | May 15, 2025 | ▲ 48.6K |
TRIGRAN INVESTMENTS, INC. metal forgings & stampings | 794.8K | 3.82% | 3.82% | $64.85B | May 13, 2025 | ▲ 56.9K |
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. metal forgings & stampings | 673.0K | 3.24% | 3.24% | $54.92B | Apr 17, 2025 | ▲ 47.2K |
BARROW HANLEY MEWHINNEY & STRAUSS LLC metal forgings & stampings | 516.6K | 2.49% | 2.49% | $42.15B | May 12, 2025 | ▲ 43.0K |
GEODE CAPITAL MANAGEMENT, LLC metal forgings & stampings | 476.7K | 2.29% | 2.29% | $38.91B | May 13, 2025 | ▲ 13.0K |
ACK ASSET MANAGEMENT LLC metal forgings & stampings | 459.2K | 2.21% | 2.21% | $37.47B | May 13, 2025 | ▼ 35.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
22
Increased
+618.1K shares2
New Positions
first time holders25
Decreased
−630.7K shares0
Sold Out
fully exitedNet shares change (top 50)
12.6K
+618.1K / −630.7K
Net new holders
-1
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MTRN insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
20
Buy transactions
17
Sell transactions
1.18
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
PHILLIPPY ROBERT J director | May 29, 2026 | Sale | 1,320 | $217.67 | $287.3K | 5.8K | Form 4 ↗ |
PHILLIPPY ROBERT J director | May 29, 2026 | Sale | 1,084 | $218.59 | $237.0K | 4.8K | Form 4 ↗ |
PHILLIPPY ROBERT J director | May 29, 2026 | Sale | 740 | $219.54 | $162.5K | 4.0K | Form 4 ↗ |
PHILLIPPY ROBERT J director | May 29, 2026 | Sale | 356 | $220.30 | $78.4K | 3.7K | Form 4 ↗ |
KHILNANI VINOD M director | May 13, 2026 | Sale | 735 | $205.32 | $150.9K | 14.9K | Form 4 ↗ |
KHILNANI VINOD M director | May 13, 2026 | Sale | 752 | $206.68 | $155.4K | 14.2K | Form 4 ↗ |
KHILNANI VINOD M director | May 13, 2026 | Sale | 410 | $208.03 | $85.3K | 13.8K | Form 4 ↗ |
KHILNANI VINOD M director | May 13, 2026 | Sale | 603 | $208.74 | $125.9K | 13.2K | Form 4 ↗ |
Vijayvargiya Jugal K. President and CEO | May 13, 2026 | Tax Withhold | 15,183 | $209.70 | $3.18M | 129.6K | Form 4 ↗ |
Chadwick Shelly Marie Vice President, Finance & CFO | May 8, 2026 | Tax Withhold | 3,720 | $199.14 | $740.8K | 16.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Materion Corporation (MTRN) is primarily owned by institutional investors, who hold approximately 94.8% of total shares outstanding. Company insiders own approximately 1.22%, while retail and public investors account for the remaining 3.97%.
The largest institutional shareholder of Materion Corporation is BLACKROCK, INC., holding approximately 3.41 million shares — equal to 16.40% of outstanding shares — as of March 31, 2025.
A total of 255 institutional investors currently hold MTRN stock, with a combined institutional value of approximately $1.61 billion as of the most recent 13F filing period.
Frequently asked questions
MTRN ownershipMaterion Corporation (MTRN) is primarily owned by institutional investors, who hold approximately 94.8% of shares. The largest shareholder is BLACKROCK, INC. with a 16.40% stake. Company insiders hold 1.22%. Data sourced from SEC Form 13F as of March 31, 2025.