Epperly Melissa B,

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
ZNTL	$44.21	149	$6,588.01	266,406	2021-04-05	Filing
ZNTL	$43.37	13,792	$598,099.73	266,555	2021-04-05	Filing
ZNTL	$43.43	3,083	$133,895.61	280,347	2021-04-05	Filing
ZNTL	$41.67	3,083	$128,482.48	283,430	2021-03-01	Filing
ZNTL	$38.33	383	$14,682.11	271,513	2021-02-01	Filing
ZNTL	$37.45	2,700	$101,122.56	271,896	2021-02-01	Filing
ZNTL	$53.20	100	$5,320.00	274,596	2021-01-04	Filing
ZNTL	$52.73	1,583	$83,477.45	274,696	2021-01-04	Filing
ZNTL	$51.58	600	$30,949.32	276,279	2021-01-04	Filing
ZNTL	$50.36	800	$40,287.04	276,879	2021-01-04	Filing
ZNTL	$54.39	391	$21,265.04	277,679	2020-12-07	Filing
ZNTL	$53.71	4,983	$267,642.41	278,070	2020-12-07	Filing
ZNTL	$52.53	971	$51,005.95	283,053	2020-12-07	Filing
ZNTL	$50.84	119	$6,049.84	284,024	2020-12-07	Filing
ZNTL	$51.17	3,877	$198,396.95	284,143	2020-12-04	Filing
ZNTL	$50.76	3,343	$169,699.71	288,020	2020-12-04	Filing
ZNTL	$53.17	358	$19,034.54	291,363	2020-12-02	Filing
ZNTL	$52.27	500	$26,136.00	291,721	2020-12-02	Filing
ZNTL	$51.33	1,525	$78,273.22	292,221	2020-12-02	Filing
ZNTL	$50.34	700	$35,237.02	293,746	2020-12-02	Filing