Historical shareholding details of Gamco Investors, Inc. Et Al holdings in Materion Corp (MTRN)

Monthly changes of Gamco Investors, Inc. Et Al shareholding in Materion Corp over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Gamco Investors, Inc. Et Al	187,150	0.90%

Mar 31, 2025	Gamco Investors, Inc. Et Al	187,750	0.91%

Dec 31, 2024	Gamco Investors, Inc. Et Al	190,750	0.92%

Sep 30, 2024	Gamco Investors, Inc. Et Al	194,250	0.94%

Jun 30, 2024	Gamco Investors, Inc. Et Al	205,350	0.99%

Mar 31, 2024	Gamco Investors, Inc. Et Al	209,050	1.01%

Dec 31, 2023	Gamco Investors, Inc. Et Al	232,250	1.12%

Sep 30, 2023	Gamco Investors, Inc. Et Al	241,350	1.17%

Jun 30, 2023	Gamco Investors, Inc. Et Al	249,750	1.21%

Mar 31, 2023	Gamco Investors, Inc. Et Al	262,550	1.27%