MTRN MATERION CORP
FollowCOM (common), issuer CIK 1104657
Filings received so far for Q3 2026: 16 13F filers report a position in MTRN shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q3 2026
Filers in the available 13F reports with a share position at 2026-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| CONGRESS ASSET MANAGEMENT CO | 192,274 | $51.8M | 0.34% | new | 13F-HRTimeline |
| Central Pacific Bank - Trust Division | 4,273 | $1.15M | 0.12% | 0 | 13F-HRTimeline |
| ANB BANK | 1,377 | $371K | 0.13% | 0 | 13F-HRTimeline |
| Hardin Capital Partners, LLC | 1,100 | $297K | 0.14% | 0 | 13F-HRTimeline |
| Whalen Wealth Management Inc. | 1,094 | $295K | 0.13% | -596 | 13F-HRTimeline |
| GAMMA Investing LLC | 917 | $247K | 0.01% | +214 | 13F-HRTimeline |
| Farther Finance Advisors, LLC | 389 | $105K | <0.01% | +69 | 13F-HRTimeline |
| Versant Capital Management, Inc | 353 | $95.2K | 0.01% | 0 | 13F-HRTimeline |
| MassMutual Private Wealth & Trust, FSB | 136 | $36.7K | <0.01% | 0 | 13F-HRTimeline |
| Polaris Financial Partners | 132 | $36K | 0.02% | 13F-HRTimeline | |
| Retirement Wealth Solutions LLC | 124 | $33.4K | 0.02% | -15 | 13F-HRTimeline |
| GK Wealth Management LLC | 30 | $8.09K | <0.01% | new | 13F-HRTimeline |
| TOTH FINANCIAL ADVISORY CORP | 6 | $1.62K | <0.01% | new | 13F-HRTimeline |
| Noble Wealth Management PBC | 3 | $809 | <0.01% | new | 13F-HRTimeline |
| GILPIN WEALTH MANAGEMENT, LLC | 3 | $809 | <0.01% | 0 | 13F-HRTimeline |
| Davis Capital Management | 1 | $270 | <0.01% | 0 | 13F-HRTimeline |