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Ticker: ZM CUSIP: 98980L101 Class: EQTY

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

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

Q1 2021

Shares 14,112 Value ($000) $4,534 Avg Close $368.06 Range $302.32 - $451.77

Q4 2020

Shares 33,558 Value ($000) $11,320 Avg Close $445.83 Range $336.10 - $588.84

Q3 2020

Shares 26,665 Value ($000) $12,535 Avg Close $319.79 Range $230.00 - $529.74

Q2 2020

Shares 29,274 Value ($000) $7,422 Avg Close $179.93 Range $108.53 - $261.62

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	14,112	$4,534	$368.06	$302.32 - $451.77
Q4 2020	33,558	$11,320	$445.83	$336.10 - $588.84
Q3 2020	26,665	$12,535	$319.79	$230.00 - $529.74
Q2 2020	29,274	$7,422	$179.93	$108.53 - $261.62