WOLSFELD MATTHEW C

SEC CIK 1258563 · EDGAR

Companies

Ticker	Company	Title	Holding	Bought	Sold	Trades	First	Last
NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	CFO, Corp. Sec	180.1K	—	—	6	2022-10-04	2026-07-01

Most active insiders at NTIC, 12 months

#	Insider	Title	Bought	Sold
1	LYNCH G PATRICK	Pres, CEO, Dir, 10%	—	$128.5K
2	NIGON RICHARD	Dir	—	$96.0K
3	Ramdas Gautam	Pres, CEO	—	—
4	Pinho Cristina Lucia Duarte	Dir	—	—
5	Kemp Sarah E.	Dir	—	—
6	Calderon Nancy E.	Dir	—	—
7	Lee Sunggyu	Dir	—	—
8	WOLSFELD MATTHEW C	CFO, Corp. Sec	—	—

Transactions 6

X	Filed	Traded	Ticker	Company	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-07-02 16:44	2026-07-01	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	M - OptEx	$6.70	+11.9K	180.1K	+7%	+$79.6K
D	2026-07-02 16:44	2026-07-01	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	F - Tax	$8.68	-9,169	171.0K	-5%	-$79.6K
D	2024-07-17	2024-07-15	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	M - OptEx	$10.05	+7,752	168.1K	+5%	+$77.9K
D	2023-07-12	2023-07-11	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	M - OptEx	$7.35	+8,582	160.3K	+6%	+$63.1K
D	2022-10-06	2022-10-04	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	F - Tax	$13.83	-10.1K	151.7K	-6%	-$139.5K
D	2022-10-06	2022-10-04	NTIC	NORTHERN TECHNOLOGIES INTERNATIONAL CORP	WOLSFELD MATTHEW C	CFO, Corp. Sec	M - OptEx	$5.13	+27.2K	161.8K	+20%	+$139.6K

Purchase Sale Sale after option exercise All abbreviations