Arkolith/Insider Trading/NTIC/Form 4

Calderon Nancy E.

DirectorNORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) · full profile →Form 4 · filed Sep 3, 2025
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
9
9 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Sep 1, 2025Grant(A)7K—$015K
Aug 13, 2025Small acquisition(L)3$7.72$228K
Aug 13, 2025Small acquisition(L)3$7.72$208K
May 14, 2025Small acquisition(L)3$7.35$208K
May 14, 2025Small acquisition(L)3$7.35$228K
Feb 12, 2025Small acquisition(L)14$11.26$1528K
Feb 12, 2025Small acquisition(L)6$11.26$728K
Nov 13, 2024Small acquisition(L)11$13.29$1518K
Nov 13, 2024Small acquisition(L)5$13.29$728K

Transaction Codes

A
Grant / award
L
See SEC Form 4 code table

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001791477-25-000004) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML