MTRN
Materion Corporation · Basic Materials · Industrial Materials
Momentum inputs (comparable managers):
holder breadth +27.3% ·
share flow +7.0% ·
net new positions +20.0%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 2 | 0 | 13.20K | $935,718 | n/a | −1 |
| Q2 2026 | 111 | +8 | 14.48M | $4.30B | +14 | −8 |
| Q1 2026 | 108 | +4 | 14.24M | $2.05B | +8 | −4 |
| Q4 2025 | 103 | -1 | 15.23M | $1.89B | +1 | −2 |
| Q3 2025 | 19 | -1 | 8.80M | $1.06B | n/a | −2 |
| Q2 2025 | 18 | +1 | 8.08M | $641.67M | +1 | n/a |
| Q1 2025 | 14 | +3 | 2.09M | $170.54M | +3 | n/a |
| Q4 2024 | 11 | -1 | 1.95M | $193.18M | n/a | −1 |
| Q3 2024 | 11 | +2 | 981.22K | $109.77M | +3 | −1 |
| Q2 2024 | 9 | n/a | 988.09K | $106.85M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.01M | +5.0% | $82.82M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 476.72K | +2.8% | $38.91M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 3 | GAMCO Investors ✦ | 187.75K | -1.6% | $15.32M | 0.2% | ▼ Trim | 4 | SEC ↗ |
| 4 | Fisher Asset Management ✦ | 158.60K | -3.5% | $12.94M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 5 | Millennium Management ✦ | 89.21K | +54.1% | $7.28M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 70.80K | +155.1% | $5.78M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 32.30K | +281.2% | $2.64M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Norges Bank ✦ (passive) | 22.29K | -56.2% | $1.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 15.79K | +6.2% | $1.29M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | Citadel Advisors ✦ | 12.58K | +66.4% | $1.03M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Gotham Asset Management ✦ | 5.22K | New | $425,626 | 0.0% | New | 1 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 2.47K | New | $201,470 | 0.0% | New | 1 | SEC ↗ ×4 |
| 13 | ARK Investment Management ✦ | 807 | -4.5% | $65,851 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Point72 Asset Management ✦ | 295 | New | $24,046 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Gotham Asset Management | $425,626 | 0.0% |
| AQR Capital Management | $201,470 | 0.0% |
| Point72 Asset Management | $24,046 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 328 holders, 19.47M shares, $2.78B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 2.00K sh · $470,322
Officer, Director · 2.34K sh · $686,248
Officer, Director · 4.87K sh · $1.43M
Officer, Director · 286 sh · $84,419
Officer, Director · 267 sh · $78,296
Officer, Director · 3.75K sh · $1.10M
Officer, Director · 11.17K sh · $3.24M
Officer, Director · 287 sh · $82,739
Officer, Director · 1.38K sh · $395,544
Director · 3.71K sh · $1.08M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology