NORTHERN TECHNOLOGIES INTL C

Ticker: NTIC CUSIP: 665809109 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2016

Shares 15,084 Value ($000) $207 Avg Close $5.86 Range $5.45 - $6.21

Q3 2013

Shares 82,396 Value ($000) $1,386 Avg Close $6.05 Range $4.75 - $7.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	15,084	$207	$5.86	$5.45 - $6.21
Q3 2013	82,396	$1,386	$6.05	$4.75 - $7.41