Shelly Marie Chadwick

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
13 Feb 25	MTRN Materion	Common Stock	Grant	Acquire A	No	No	0	2,937	0.00	17,569
31 Jan 25	MTRN Materion	Common Stock	Sell	Dispose S	No	Yes	101.24	805	81.50 k	14,632
23 Jan 25	AIT Applied Industrial	Common Stock	Grant	Acquire A	No	No	0	562	0.00	3,084
6 Dec 24	MTRN Materion	Common Stock	Payment of exercise	Dispose F	No	No	110.97	3	332.91	15,437
6 Dec 24	MTRN Materion	Common Stock	Grant	Acquire A	No	No	0	5	0.00	15,440
6 Dec 24	MTRN Materion	RSU Common Stock	Grant	Acquire A	No	No	0	15	0.00	8,493
2 Dec 24	MTRN Materion	Common Stock	Payment of exercise	Dispose F	No	No	117.96	1,789	211.03 k	15,435
30 Nov 24	MTRN Materion	Common Stock	Option exercise	Acquire M	No	No	0	4,024	0.00	17,224
30 Nov 24	MTRN Materion	RSU Common Stock	Option exercise	Dispose M	No	No	0	4,024	0.00	8,499
29 Nov 24	MTRN Materion	Common Stock	Sell	Dispose S	No	No	115923	1,000	115.92 mm	13,200

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.