Ryan F Raber

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
28 Feb 23	MEC Mayville Engineering	Common Stock	Payment of exercise	Dispose F	No	No	16.06	9,860	158.35 k	74,681
28 Feb 23	MEC Mayville Engineering	Common Stock	Option exercise	Acquire M	No	No	0	30,814	0.00	84,541
28 Feb 23	MEC Mayville Engineering	Stock Option Common Stock	Grant	Acquire A	No	No	16.22	44,720	725.36 k	44,720
28 Feb 23	MEC Mayville Engineering	RSU Common Stock	Grant	Acquire A	No	No	0	25,586	0.00	25,586
28 Feb 23	MEC Mayville Engineering	RSU Common Stock	Option exercise	Dispose M	No	No	0	20,107	0.00	20,106
28 Feb 23	MEC Mayville Engineering	RSU Common Stock	Option exercise	Dispose M	No	No	0	10,707	0.00	0
28 Feb 22	MEC Mayville Engineering	Common Stock	Payment of exercise	Dispose F	No	No	10.32	7,190	74.20 k	46,537
28 Feb 22	MEC Mayville Engineering	Common Stock	Option exercise	Acquire M	No	No	0	22,470	0.00	53,727
28 Feb 22	MEC Mayville Engineering	RSU Common Stock	Option exercise	Dispose M	No	No	0	10,707	0.00	10,707
28 Feb 22	MEC Mayville Engineering	RSU Common Stock	Option exercise	Dispose M	No	No	0	11,763	0.00	0

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