LYNCH G PATRICK [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Ownership	Reported
08/08/2023	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Exercise	Stock Option (right to buy)	11.6k	$7.35	$85.3k		08/08/2023
08/08/2023	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Payment of Exercise	Common Stock	6.4k	$13.36	$85.3k		08/08/2023
10/04/2022	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Payment of Exercise	Common Stock	13.6k	$13.83	$188.7k		10/04/2022
10/04/2022	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Exercise	Stock Option (right to buy)	36.8k	$5.13	$188.7k		10/04/2022
09/01/2022	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	47.5k	$11.38	$540.7k		09/01/2022
09/01/2021	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	32.5k	$16.97	$552.2k		09/01/2021
09/01/2020	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	74.7k	$8.24	$615.9k		09/01/2020
09/01/2019	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	58.7k	$10.80	$633.4k		09/01/2019
09/01/2018	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	13.8k	$36.45	$502.9k		09/01/2018
09/01/2017	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	5.9k	$18.35	$107.4k		09/01/2017
09/01/2013	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Stock Option (right to buy)	5.8k	$14.70	$85.3k		09/01/2013
09/13/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	616	$14.80	$9.1k	See footnote 2	09/12/2011
09/12/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1.2k	$15.20	$18k	See footnote 2	09/12/2011
06/03/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1.4k	$16.31	$23k	see footnote 2	06/01/2011
06/02/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	300	$16.55	$5k	see footnote 2	06/01/2011
06/01/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1.5k	$16.34	$24.5k	see footnote 2	06/01/2011
03/04/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1.5k	$16.00	$24k	see footnote 2	03/02/2011
03/03/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	2.5k	$15.96	$39.9k	see footnote 2	03/02/2011
03/02/2011	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1000	$16.00	$16k	see footnote 2	03/02/2011
12/07/2010	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	600	$13.00	$7.8k	See note 2	12/06/2010
12/06/2010	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	1.5k	$12.93	$19.4k	See note 2	12/06/2010
11/18/2010	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Grant	Common Stock	4.2k	$0.00	$0		11/18/2010
08/20/2010	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	859	$11.69	$10k	See footnote	08/20/2010
12/04/2009	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	NTIC	Sale	Common Stock	202.4k	$7.50	$1.5M	See footnote	12/04/2009