Materion Corporation
A maker of advanced engineered materials, Materion produces beryllium and specialty alloys, precision strip, chemicals, and precision optics for semiconductors, aerospace, defense, and automotive. It traces its roots to Brush Laboratories, founded in 1921 in Cleveland to extract beryllium, and took the name Materion in 2011. The company runs the world's largest bertrandite ore mine, and its beryllium — lighter than aluminum yet six times stiffer than steel — flew in the James Webb Space Telescope.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.