Insider · CIK 0001434271

Keong Koh Soo

Reports to the SEC for 1 company · CIRCLE PINES, MN

sec.gov

Transactions

Companies

Filings

CIK

0001434271

Forms 4 and 5

Insider transactions

37 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−16K sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+8,000 sh	$7.35	+$58.8K	41,332
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+8,000 sh	$10.05	+$80.4K	49,332
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+8,000 sh	$7.43	+$59.4K	57,332
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+8,000 sh	$6.70	+$53.6K	65,332
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+8,000 sh	$9.18	+$73.4K	73,332
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+11.7K sh	$10.80	+$127K	85,069
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+16K sh	$8.24	+$132K	101,095
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−8,000 sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−8,000 sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−8,000 sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−8,000 sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−8,000 sh	—	—	0
2021-07-07	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−11.7K sh	—	—	0
2020-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+16K sh	—	—	16,026
2019-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+11.7K sh	—	—	11,737
2018-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+2,773 sh	—	—	2,773
2017-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2017-08-23	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+4,000 sh	$10.25	+$41K	16,666
2017-08-23	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−4,000 sh	$10.25	−$41K	0
2016-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2015-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2015-07-03	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−4,000 sh	$9.76	−$39K	0
2015-07-03	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+4,000 sh	$9.76	+$39K	12,666
2014-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2014-08-25	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−4,000 sh	$8.57	−$34.3K	0
2014-08-25	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+4,000 sh	$8.57	+$34.3K	8,666
2013-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2013-08-30	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−4,000 sh	$12.84	−$51.4K	0
2013-08-30	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+4,000 sh	$12.84	+$51.4K	4,666
2013-04-29	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)M Exercise/Conversion	Director	MExercise/Conversion	−666 sh	$7.75	−$5,161.5	0
2013-04-29	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORPM Exercise/Conversion	Director	MExercise/Conversion	+666 sh	$7.75	+$5,161.5	666
2012-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2012-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2011-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2010-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (Right-to-Buy)A Award	Director	AAward	+4,000 sh	—	—	4,000
2009-09-01	NTICNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Stock Option (right to buy)A Award	Director	AAward	+4,000 sh	—	—	4,000

Recent filings

Accepted (ET)
Jul 94
Keong Koh Soo0001235802-21-000073
SEC(opens sec.gov)
Sep 24
Keong Koh Soo0001526513-20-000001
SEC(opens sec.gov)
Sep 44
Keong Koh Soo0001526513-19-000001
SEC(opens sec.gov)
Sep 54
Keong Koh Soo0001526513-18-000002
SEC(opens sec.gov)
Sep 54
Keong Koh Soo0001526513-17-000006
SEC(opens sec.gov)
Aug 244
Keong Koh Soo0001526513-17-000002
SEC(opens sec.gov)

Companies

NORTHERN TECHNOLOGIES INTERNATIONAL CORPDirectorNTIC

Address

4201 WOODLAND ROAD POST OFFICE BOX 69

CIRCLE PINES, MN, 55014