NATIONAL PRESTO INDS INC

Ticker: NPK CUSIP: 637215104 Class: COM

Grantham, Mayo, Van Otterloo & Co. LLC's Holding History (CIK: 0001352662)

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

Q4 2020

Shares 14,000 Value ($000) $1,238 Avg Close $85.92 Range $79.49 - $94.30

Q3 2020

Shares 24,300 Value ($000) $1,989 Avg Close $87.32 Range $81.09 - $95.66

Q2 2020

Shares 17,700 Value ($000) $1,547 Avg Close $85.05 Range $68.17 - $97.90

Q1 2014

Shares 2,600 Value ($000) $203 Avg Close $78.13 Range $73.04 - $84.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	14,000	$1,238	$85.92	$79.49 - $94.30
Q3 2020	24,300	$1,989	$87.32	$81.09 - $95.66
Q2 2020	17,700	$1,547	$85.05	$68.17 - $97.90
Q1 2014	2,600	$203	$78.13	$73.04 - $84.00