NORTHROP GRUMMAN CORP

Ticker: NOC CUSIP: 666807102 Class: COM

HighVista Strategies LLC's Holding History (CIK: 0001335325)

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

Q1 2019

Shares 900 Value ($000) $243 Avg Close $243.65 Range $211.35 - $261.00

Q4 2017

Shares 1,100 Value ($000) $338 Avg Close $263.02 Range $251.27 - $273.10

Q3 2017

Shares 13,300 Value ($000) $3,827 Avg Close $234.97 Range $223.70 - $251.79

Q2 2017

Shares 1,100 Value ($000) $282 Avg Close $217.50 Range $204.18 - $228.88

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	900	$243	$243.65	$211.35 - $261.00
Q4 2017	1,100	$338	$263.02	$251.27 - $273.10
Q3 2017	13,300	$3,827	$234.97	$223.70 - $251.79
Q2 2017	1,100	$282	$217.50	$204.18 - $228.88