NETSCOUT SYS INC

Ticker: NTCT CUSIP: 64115T104 Class: Common Stock

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

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

Q1 2021

Shares 8,600 Value ($000) $242 Avg Close $29.32 Range $26.28 - $31.91

Q4 2020

Shares 9,500 Value ($000) $261 Avg Close $23.89 Range $19.76 - $28.28

Q3 2020

Shares 21,694 Value ($000) $474 Avg Close $24.16 Range $20.55 - $27.50

Q2 2020

Shares 37,894 Value ($000) $968 Avg Close $25.84 Range $21.65 - $29.31

Q1 2020

Shares 127,394 Value ($000) $3,015 Avg Close $25.36 Range $19.11 - $29.62

Q4 2019

Shares 163,294 Value ($000) $3,931 Avg Close $23.64 Range $20.96 - $26.30

Q3 2019

Shares 151,194 Value ($000) $3,487 Avg Close $23.88 Range $20.94 - $26.75

Q2 2019

Shares 128,094 Value ($000) $3,253 Avg Close $26.86 Range $23.92 - $30.30

Q1 2019

Shares 33,280 Value ($000) $934 Avg Close $26.57 Range $22.55 - $28.65

Q4 2018

Shares 43,380 Value ($000) $1,025 Avg Close $25.19 Range $21.58 - $29.19

Q3 2018

Shares 74,600 Value ($000) $1,884 Avg Close $27.03 Range $23.50 - $31.78

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	8,600	$242	$29.32	$26.28 - $31.91
Q4 2020	9,500	$261	$23.89	$19.76 - $28.28
Q3 2020	21,694	$474	$24.16	$20.55 - $27.50
Q2 2020	37,894	$968	$25.84	$21.65 - $29.31
Q1 2020	127,394	$3,015	$25.36	$19.11 - $29.62
Q4 2019	163,294	$3,931	$23.64	$20.96 - $26.30
Q3 2019	151,194	$3,487	$23.88	$20.94 - $26.75
Q2 2019	128,094	$3,253	$26.86	$23.92 - $30.30
Q1 2019	33,280	$934	$26.57	$22.55 - $28.65
Q4 2018	43,380	$1,025	$25.19	$21.58 - $29.19
Q3 2018	74,600	$1,884	$27.03	$23.50 - $31.78