Choon Yul Yoo

Date	Company	Security	Transaction	Code	Indirect	10b5-1	#Shares	#Remaining
31 Dec 24	DZSI DZS	Common Stock	Option exercise	Acquire M	No	No	25,000	126,925
31 Dec 24	DZSI DZS	RSU Common Stock	Option exercise	Dispose M	No	No	25,000	0
30 Sep 24	DZSI DZS	Common Stock	Option exercise	Acquire M	No	No	25,000	101,925
30 Sep 24	DZSI DZS	RSU Common Stock	Option exercise	Dispose M	No	No	25,000	25,000
6 Sep 24	DZSI DZS	Common Stock	Option exercise	Acquire M	No	No	50,000	76,925
6 Sep 24	DZSI DZS	RSU Common Stock	Option exercise	Dispose M	No	No	50,000	50,000
6 Sep 24	DZSI DZS	RSU Common Stock	Grant	Acquire A	No	No	100,000	100,000
31 Dec 23	DZSI DZS	Common Stock	Option exercise	Acquire M	No	No	1,953	26,925
31 Dec 23	DZSI DZS	RSU Common Stock	Option exercise	Dispose M	No	No	1,953	0
30 Sep 23	DZSI DZS	Common Stock	Option exercise	Acquire M	No	No	1,951	24,972

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