NETSCOUT SYS INC

Ticker: NTCT CUSIP: 64115T104 Class: Common Stock

FRED ALGER MANAGEMENT, LLC's Holding History (CIK: 0000003520)

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

Q4 2017

Shares 388,431 Value ($000) $11,828 Avg Close $30.56 Range $27.65 - $33.50

Q3 2017

Shares 397,020 Value ($000) $12,844 Avg Close $33.37 Range $31.70 - $36.80

Q2 2017

Shares 368,160 Value ($000) $12,665 Avg Close $36.18 Range $32.25 - $38.48

Q1 2017

Shares 340,672 Value ($000) $12,929 Avg Close $35.32 Range $29.50 - $38.45

Q4 2016

Shares 348,637 Value ($000) $10,982 Avg Close $30.68 Range $26.25 - $33.83

Q3 2016

Shares 352,918 Value ($000) $10,323 Avg Close $27.44 Range $21.46 - $30.31

Q2 2016

Shares 361,486 Value ($000) $8,043 Avg Close $23.15 Range $20.99 - $25.33

Q4 2015

Shares 639,894 Value ($000) $19,645 Avg Close $34.39 Range $29.47 - $40.28

Q3 2015

Shares 600,659 Value ($000) $21,245 Avg Close $37.86 Range $34.89 - $41.34

Q2 2015

Shares 160,659 Value ($000) $5,891 Avg Close $41.05 Range $36.25 - $45.53

Q1 2015

Shares 110,377 Value ($000) $4,840 Avg Close $38.71 Range $33.53 - $44.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	388,431	$11,828	$30.56	$27.65 - $33.50
Q3 2017	397,020	$12,844	$33.37	$31.70 - $36.80
Q2 2017	368,160	$12,665	$36.18	$32.25 - $38.48
Q1 2017	340,672	$12,929	$35.32	$29.50 - $38.45
Q4 2016	348,637	$10,982	$30.68	$26.25 - $33.83
Q3 2016	352,918	$10,323	$27.44	$21.46 - $30.31
Q2 2016	361,486	$8,043	$23.15	$20.99 - $25.33
Q4 2015	639,894	$19,645	$34.39	$29.47 - $40.28
Q3 2015	600,659	$21,245	$37.86	$34.89 - $41.34
Q2 2015	160,659	$5,891	$41.05	$36.25 - $45.53
Q1 2015	110,377	$4,840	$38.71	$33.53 - $44.76