ZSCALER INC

Ticker: ZS CUSIP: 98980G102 Class: EQTY

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

Note: Option positions (PUT/CALL) are excluded.

Q1 2021

Shares 9,202 Value ($000) $1,580 Avg Close $198.66 Range $160.66 - $230.88

Q2 2019

Shares 8,300 Value ($000) $636 Avg Close $71.23 Range $60.02 - $82.25

Q1 2019

Shares 22,100 Value ($000) $1,568 Avg Close $53.12 Range $38.03 - $72.69

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	9,202	$1,580	$198.66	$160.66 - $230.88
Q2 2019	8,300	$636	$71.23	$60.02 - $82.25
Q1 2019	22,100	$1,568	$53.12	$38.03 - $72.69