Institutional Holders (2026 Q2)
392 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in MTRN. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Trigran Investments, Inc. | 11.99% | 219,877 | $65.4M |
| 2 | ACK Asset Management LLC | 4.69% | 135,000 | $40.1M |
| 3 | Lumbard & Kellner, LLC | 4.65% | 51,579 | $15.3M |
| 4 | Harvey Partners, LLC | 4.48% | 220,068 | $65.4M |
| 5 | Phocas Financial Corp. | 1.91% | 46,207 | $13.7M |
| 6 | Deuterium Capital Management, LLC | 1.46% | 4,540 | $1.4M |
| 7 | Copeland Capital Management, LLC | 1.39% | 227,669 | $67.7M |
| 8 | Segall Bryant & Hamill, LLC | 1.11% | 313,988 | $93.4M |
| 9 | Chatham Capital Group, INC. | 1.05% | 27,575 | $8.2M |
| 10 | Gilman Hill Asset Management, LLC | 1.02% | 25,140 | $7.5M |
| 11 | Kennedy Capital Management LLC | 0.78% | 148,769 | $44.2M |
| 12 | Granahan Investment Management, LLC | 0.74% | 69,793 | $20.8M |
| 13 | Samlyn Capital, LLC | 0.73% | 151,721 | $45.1M |
| 14 | Emerald Investment Advisers, LLC | 0.72% | 36,480 | $10.8M |
| 15 | Emerald Advisers, LLC | 0.65% | 92,808 | $27.6M |
| 16 | Informed Momentum Co LLC | 0.64% | 24,334 | $7.2M |
| 17 | Emerald Mutual Fund Advisers Trust | 0.64% | 61,247 | $18.2M |
| 18 | Oliver Luxxe Assets LLC | 0.55% | 12,671 | $3.8M |
| 19 | Heartland Advisors Inc | 0.54% | 40,550 | $12.1M |
| 20 | Gamco Investors, INC. Et Al | 0.48% | 180,940 | $53.8M |
| 21 | Hawk Ridge Capital Management LP | 0.44% | 45,800 | $13.6M |
| 22 | Barrow Hanley Mewhinney & Strauss LLC | 0.40% | 446,069 | $132.7M |
| 23 | PDT Partners, LLC | 0.25% | 15,931 | $4.7M |
| 24 | Rice Hall James & Associates, LLC | 0.25% | 17,098 | $5.1M |
| 25 | VARCOV Co. | 0.24% | 2,085 | $620K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|