LIVE FROM THE DATABASETRANSACTIONS 362,114COMPANIES 5,761LATEST TRADE Oct 16UPDATED Oct 16, 09:12 PM
NTICCIK 0000875582

NORTHERN TECHNOLOGIES INTERNATIONAL CORP

23 transactions by 9 insiders, from November 12, 2025 to September 1, 2026.

Transactions
239 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$225Kopen market
Net
−$225Knet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
G. Patrick LynchCEO5——$129K
Nancy E. CalderonDir5———
Matthew C. WolsfeldCFO4———
Richard NigonDir4——$96K
Sarah E. KempDir1———
Cristina Lucia Duarte PinhoDir1———
Sunggyu LeeDir1———
Ramani NarayanDir1———
Falkenhausen Konstantin vonDir1———

All transactions

23 in total, newest filings first.

InsiderDateCodeSharesPriceValue
G. Patrick LynchCEODERIVSep 1A40,257$0.00—?
Matthew C. WolsfeldCFODERIVSep 1A29,755$0.00—?
Cristina Lucia Duarte PinhoDirSep 1A6,188$0.00—
Falkenhausen Konstantin vonDirDERIVSep 1A15,044$0.00—?
Ramani NarayanDirDERIVSep 1A15,044$0.00—?
Richard NigonDirSep 1A7,426$0.00—
Sunggyu LeeDirSep 1A6,188$0.00—
Sarah E. KempDirSep 1A6,188$0.00—
Nancy E. CalderonDirSep 1A6,188$0.00—
Nancy E. CalderonDirFeb 11L3$8.66$22
Nancy E. CalderonDirFeb 11L2$8.66$20
Nancy E. CalderonDirNov 12L3$8.12$22
Nancy E. CalderonDirNov 12L3$8.12$20
G. Patrick LynchCEODERIVJul 29M16,072$0.00—?
G. Patrick LynchCEOJul 30S16,070$8.00$129K
G. Patrick LynchCEOJul 29S2$8.10$16
G. Patrick LynchCEOJul 29M16,072$6.70$108K
Richard NigonDirDERIVJul 20M12,000$0.00—?
Richard NigonDirJul 20S12,000$8.00$96K
Richard NigonDirJul 20M12,000$6.70$80K
Matthew C. WolsfeldCFODERIVJul 1M11,879$0.00—?
Matthew C. WolsfeldCFOJul 1F9,169$8.68$80K
Matthew C. WolsfeldCFOJul 1M11,879$6.70$80K