Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| NORTHERN TECHNOLOGIES INTERNATIONAL CORPNTIC · Entity 1510 | CFO and Corporate Secretary | September 01, 2026 | September 04, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
NORTHERN TECHNOLOGIES INTERNATIONAL CORP
Report date September 01, 2026 · Filed September 04, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $8.08 · Expires 2036-08-31 | Direct | 29,755 |
Reported balance
After 2026-09-01 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2026-09-01 · Grant · Acquired 29,755 · Balance 29,755 F1: This option vests with respect to 9,919 shares on September 1, 2027, and with respect to 9,918 shares on each of September 1, 2028 and September 1, 2029. |
| Common StockSEC Table I · non-derivative | Direct | 170,966 |
Reported balance
Holding disclosure · report date 2026-09-01 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 170,966 |
Filing footnotes · ownership attribution and instrument terms
F1: This option vests with respect to 9,919 shares on September 1, 2027, and with respect to 9,918 shares on each of September 1, 2028 and September 1, 2029.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 01, 2026 Filed Sep 4, 2026 01:58 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 29,755 | $0.00 Strike: $8.08 | $0.00 |
DisclosureSEC source: 0001258563-26-000002 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,755 Underlying: Common Stock · 29,755 shares Expires 2036-08-31 F1 · derivative.exercise_date: This option vests with respect to 9,919 shares on September 1, 2027, and with respect to 9,918 shares on each of September 1, 2028 and September 1, 2029. Read SEC document |
| July 01, 2026 Filed Jul 2, 2026 20:44 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionStock Option (right to buy) · Derivative | 11,879 | $0.00 Strike: $6.70 | $0.00 |
DisclosureSEC source: 0001258563-26-000001 · primary_doc.xml · derivative · entry 3 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 11,879 shares Expires 2026-08-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.exercise_date: This option has fully vested. Read SEC document |
| July 01, 2026 Filed Jul 2, 2026 20:44 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Tax withholdingCommon Stock | 9,169 | $8.68 | $79,586.92 |
DisclosureSEC source: 0001258563-26-000001 · primary_doc.xml · nonDerivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 170,966 Read SEC document |
| July 01, 2026 Filed Jul 2, 2026 20:44 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionCommon Stock | 11,879 | $6.70 | $79,589.30 |
DisclosureSEC source: 0001258563-26-000001 · primary_doc.xml · nonDerivative · entry 1 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 180,135 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| September 01, 2025 Filed Sep 3, 2025 23:10 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 32,559 | $0.00 Strike: $7.42 | $0.00 |
DisclosureSEC source: 0001258563-25-000006 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,559 Underlying: Common Stock · 32,559 shares Expires 2035-08-31 F2 · derivative.exercise_date: This option vests with respect to 10,853 shares on each of September 1, 2026, September 1, 2027, and September 1, 2028. Read SEC document |
| September 01, 2024 Filed Sep 5, 2024 00:20 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 33,156 | $0.00 Strike: $13.26 | $0.00 |
DisclosureSEC source: 0001526513-24-000008 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,156 Underlying: Common Stock · 33,156 shares Expires 2034-08-31 F2 · derivative.exercise_date: This option vests with respect to 11,052 shares on each of September 1, 2025, September 1, 2026, and September 1, 2027. Read SEC document |
| July 15, 2024 Filed Jul 17, 2024 20:15 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionStock Option (right to buy) · Derivative | 7,752 | $0.00 Strike: $10.05 | $0.00 |
DisclosureSEC source: 0001235802-24-000056 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 7,752 shares Expires 2024-08-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: This option has fully vested. Read SEC document |
| July 15, 2024 Filed Jul 17, 2024 20:15 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionCommon Stock | 7,752 | $10.05 | $77,907.60 |
DisclosureSEC source: 0001235802-24-000056 · primary_doc.xml · nonDerivative · entry 1 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 168,149 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 28 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan. Read SEC document |
| September 01, 2023 Filed Sep 6, 2023 21:31 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 33,543 | $0.00 Strike: $13.25 | $0.00 |
DisclosureSEC source: 0001526513-23-000008 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,543 Underlying: Common Stock · 33,543 shares Expires 2033-08-31 F2 · derivative.exercise_date: This option vests with respect to 11,181 shares on each of September 1, 2024, September 1, 2025 and September 1, 2026. Read SEC document |
| July 11, 2023 Filed Jul 12, 2023 21:17 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionStock Option (right to buy) · Derivative | 8,582 | $0.00 Strike: $7.35 | $0.00 |
DisclosureSEC source: 0001526513-23-000001 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,582 shares Expires 2023-08-31 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: This option has fully vested. Read SEC document |
| July 11, 2023 Filed Jul 12, 2023 21:17 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionCommon Stock | 8,582 | $7.35 | $63,077.70 |
DisclosureSEC source: 0001526513-23-000001 · primary_doc.xml · nonDerivative · entry 1 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 160,338 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 29 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan. Read SEC document |
| October 04, 2022 Filed Oct 6, 2022 21:24 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionStock Option (right to buy) · Derivative | 27,218 | $0.00 Strike: $5.13 | $0.00 |
DisclosureSEC source: 0001526513-22-000010 · primary_doc.xml · derivative · entry 3 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 27,218 shares Expires 2022-11-16 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: This option has fully vested. Read SEC document |
| October 04, 2022 Filed Oct 6, 2022 21:24 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Tax withholdingCommon Stock | 10,086 | $13.83 | $139,489.38 |
DisclosureSEC source: 0001526513-22-000010 · primary_doc.xml · nonDerivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 151,727 F1 · balance_after: Includes 60 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan. Read SEC document |
| October 04, 2022 Filed Oct 6, 2022 21:24 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | Exercise / conversionCommon Stock | 27,218 | $5.13 | $139,492.25 |
DisclosureSEC source: 0001526513-22-000010 · primary_doc.xml · nonDerivative · entry 1 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 161,813 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Includes 60 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan. Read SEC document |
| September 01, 2022 Filed Sep 6, 2022 22:06 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 35,121 | $0.00 Strike: $11.38 | $0.00 |
DisclosureSEC source: 0001526513-22-000006 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 35,121 Underlying: Common Stock · 35,121 shares Expires 2032-08-31 F2 · derivative.exercise_date: This option vests with respect to 11,707 shares on each of September 1, 2023, September 1, 2024 and September 1, 2025. Read SEC document |
| September 01, 2021 Filed Sep 2, 2021 21:40 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 24,051 | $0.00 Strike: $16.97 | $0.00 |
DisclosureSEC source: 0001526513-21-000006 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 24,051 Underlying: Common Stock · 24,051 shares Expires 2031-08-31 F2 · derivative.exercise_date: This option vests with respect to 8,017 shares on each of September 1, 2022, September 1, 2023 and September 1, 2024. Read SEC document |
| September 01, 2020 Filed Sep 3, 2020 20:23 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 55,244 | $0.00 Strike: $8.24 | $0.00 |
DisclosureSEC source: 0001526513-20-000007 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,244 Underlying: Common Stock · 55,244 shares Expires 2030-08-31 F2 · derivative.exercise_date: This option vests with respect to 18,415 shares on each of September 1, 2021 and September 1, 2022 and with respect to 18,414 shares on September 1, 2023 Read SEC document |
| September 01, 2019 Filed Sep 4, 2019 21:55 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 43,351 | $0.00 Strike: $10.80 | $0.00 |
DisclosureSEC source: 0001526513-19-000005 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 43,351 Underlying: Common Stock · 43,351 shares Expires 2029-08-31 Read SEC document |
| September 01, 2018 Filed Sep 5, 2018 21:32 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 10,198 | $0.00 Strike: $36.45 | $0.00 |
DisclosureSEC source: 0001526513-18-000007 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 10,198 Underlying: Common Stock · 10,198 shares Expires 2028-08-31 Read SEC document |
| September 01, 2017 Filed Sep 5, 2017 21:49 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 4,325 | $0.00 Strike: $18.35 | $0.00 |
DisclosureSEC source: 0001526513-17-000009 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,325 Underlying: Common Stock · 4,325 shares Expires 2027-08-31 F2 · derivative.exercise_date: This option vests with respect to 1,442 shares on each of September 1, 2018 and September 1, 2019 and with respect to 1,441 shares on September 1, 2020. Read SEC document |
| September 01, 2016 Filed Sep 6, 2016 21:44 UTC | NORTHERN TECHNOLOGIES INTERNATIONAL CORP NTIC · Entity 1510 | GrantStock Option (right to buy) · Derivative | 5,940 | $0.00 Strike: $13.40 | $0.00 |
DisclosureSEC source: 0001526513-16-000020 · primary_doc.xml · derivative · entry 2 WOLSFELD MATTHEW C · CIK 0001258563 · CFO and Corporate Secretary 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 5,940 Underlying: Common Stock · 5,940 shares Expires 2026-08-31 F2 · derivative.exercise_date: This option vests with respect to 1,980 shares on each of September 1, 2017, September 1, 2018 and September 1, 2019. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.