von Falkenhausen Konstantin

Director at NORTHERN TECHNOLOGIES INTERNATIONAL CORP · on record since Nov 19, 2012

Insider trading activity of von Falkenhausen Konstantin

Transactions on record: 24; since Nov 19, 2012

Open-market buys: 2; $18.2K

Open-market sells: 0

Companies traded: 1; last filing Sep 3, 2026

Figures computed from official regulatory filings — .

Companies where von Falkenhausen Konstantin has traded

NORTHERN TECHNOLOGIES INTERNATIONAL CORP24 tx · $268.5K · Sep 3, 2026

Track record of von Falkenhausen Konstantin

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of von Falkenhausen Konstantin

Co-insiders of von Falkenhausen Konstantin

ACON Refining Partners, L.L.C.NORTHERN TECHNOLOGIES INTERNATIONAL CORP
Calderon Nancy E.NORTHERN TECHNOLOGIES INTERNATIONAL CORP
CHENU PIERRENORTHERN TECHNOLOGIES INTERNATIONAL CORP
Colwell Barbara D.NORTHERN TECHNOLOGIES INTERNATIONAL CORP
Coulombe Jean-GuyNORTHERN TECHNOLOGIES INTERNATIONAL CORP
DALAL VINEETNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Frank Tilman BernhardNORTHERN TECHNOLOGIES INTERNATIONAL CORP
GENCER MEHMETNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Haglund Brian JamesNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Hahn GerhardNORTHERN TECHNOLOGIES INTERNATIONAL CORP
INTER ALIA HOLDING CONORTHERN TECHNOLOGIES INTERNATIONAL CORP
Kallmeyer VeraNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Kemp Sarah E.NORTHERN TECHNOLOGIES INTERNATIONAL CORP
Keong Koh SooNORTHERN TECHNOLOGIES INTERNATIONAL CORP
KIEL DIXON URSELANORTHERN TECHNOLOGIES INTERNATIONAL CORP
KUBIK DONALD ANORTHERN TECHNOLOGIES INTERNATIONAL CORP
LAREAU RICHARD GNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Lee SunggyuNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Liaw EricNORTHERN TECHNOLOGIES INTERNATIONAL CORP
LYNCH G PATRICKNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Lynch Juliane INORTHERN TECHNOLOGIES INTERNATIONAL CORP
LYNCH PHILIP MNORTHERN TECHNOLOGIES INTERNATIONAL CORP
MacDougall Michael GNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Mayers Mark MNORTHERN TECHNOLOGIES INTERNATIONAL CORP
MENG TAONORTHERN TECHNOLOGIES INTERNATIONAL CORP
Narayan RamaniNORTHERN TECHNOLOGIES INTERNATIONAL CORP
NIGON RICHARDNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Northern Tier Energy GP LLCNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Pinho Cristina Lucia DuarteNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Ramdas GautamNORTHERN TECHNOLOGIES INTERNATIONAL CORP
Rosenbaum BarryNORTHERN TECHNOLOGIES INTERNATIONAL CORP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2026	AwardD (derivative)	15,044	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2025	AwardD (derivative)	16,287	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	May 6, 2025	Buy	1,100	7.23 USD	$8K	conv 60First in 12mo	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 4, 2024	AwardD (derivative)	9,843	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	Other	-6,081	13.22 USD	$80.4K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	Exercise	8,000	10.05 USD	$80.4K	Unusual size	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	ExerciseD (derivative)	-8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2023	AwardD (derivative)	9,921	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 28, 2023	Exercise	8,000	7.35 USD	$58.8K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 28, 2023	ExerciseD (derivative)	-8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Oct 17, 2022	Exercise	6,000	5.13 USD	$30.8K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Oct 17, 2022	ExerciseD (derivative)	-6,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2022	AwardD (derivative)	10,309	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2021	AwardD (derivative)	6,859	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2020	AwardD (derivative)	16,026	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 4, 2019	AwardD (derivative)	11,737	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 5, 2018	AwardD (derivative)	2,773	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 5, 2017	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2016	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2015	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Jul 28, 2015	Buy	600	17.02 USD	$10.2K	conv 66First in 12mo	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2014	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2013	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Nov 19, 2012	AwardD (derivative)	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2026	AwardD (derivative)	15,044	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2025	AwardD (derivative)	16,287	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	May 6, 2025	Buy	1,100	7.23 USD	$8K	conv 60First in 12mo	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 4, 2024	AwardD (derivative)	9,843	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	Other	-6,081	13.22 USD	$80.4K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	Exercise	8,000	10.05 USD	$80.4K	Unusual size	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 1, 2024	ExerciseD (derivative)	-8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2023	AwardD (derivative)	9,921	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 28, 2023	Exercise	8,000	7.35 USD	$58.8K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Aug 28, 2023	ExerciseD (derivative)	-8,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Oct 17, 2022	Exercise	6,000	5.13 USD	$30.8K		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Oct 17, 2022	ExerciseD (derivative)	-6,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2022	AwardD (derivative)	10,309	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2021	AwardD (derivative)	6,859	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2020	AwardD (derivative)	16,026	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 4, 2019	AwardD (derivative)	11,737	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 5, 2018	AwardD (derivative)	2,773	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 5, 2017	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 6, 2016	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2015	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Jul 28, 2015	Buy	600	17.02 USD	$10.2K	conv 66First in 12mo	SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 2, 2014	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Sep 3, 2013	AwardD (derivative)	4,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NORTHERN TECHNOLOGIES INTERNATIONAL CORPListing on record	Nov 19, 2012	AwardD (derivative)	3,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC