NATIONAL RESH CORP

Ticker: NRC CUSIP: 637372202 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2019

Shares 4,429 Value ($000) $292 Avg Close $61.13 Range $54.38 - $68.17

Q3 2019

Shares 4,117 Value ($000) $238 Avg Close $61.97 Range $54.24 - $68.86

Q2 2019

Shares 3,061 Value ($000) $176 Avg Close $46.27 Range $37.96 - $58.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	4,429	$292	$61.13	$54.38 - $68.17
Q3 2019	4,117	$238	$61.97	$54.24 - $68.86
Q2 2019	3,061	$176	$46.27	$37.96 - $58.71