Welcome to our dedicated page for Northern Techn SEC filings (Ticker: NTIC), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Northern Technologies International Corporation filings document operating results, governance matters, and capital-allocation actions for an operating company focused on ZERUST corrosion prevention and Natur-Tec bio-based and biodegradable polymer products. Recent Form 8-K reports include quarterly and annual financial-result exhibits with sales categories for ZERUST industrial, ZERUST oil and gas, Natur-Tec products, NTIC China, and joint venture operating income.
The filing record also covers annual meeting voting results, director elections and stockholder voting proposals disclosed through proxy-related materials, and dividend policy actions tied to debt reduction. These disclosures document NTIC’s capital structure and governance record alongside its corrosion-control and compostable-materials businesses.
Northern Technologies International Corp. (NTIC) reporting person G. Patrick Lynch disclosed transactions on 09/01/2025. The filing shows a sale of 105,284 shares of common stock, and the acquisition of a stock option covering 44,051 underlying shares with an exercise price of $7.42. Following the sale, Mr. Lynch (through Inter Alia Holding Company) is reported to beneficially own 1,203,334 shares indirectly. The option vests in three annual tranches—14,684 shares on 9/1/2026, 14,684 on 9/1/2027 and 14,683 on 9/1/2028—and the option details show an expiration/related date listed as 08/31/2035. The filing includes Mr. Lynch's roles as President, CEO, director and >10% owner and contains the reporting attorney signature dated 09/03/2025.
Northern Technologies International Corp. (NTIC) Form 4 shows that director Konstantin von Falkenhausen disposed of 18,219 shares and acquired a stock option on 09/01/2025. The option covers 16,287 underlying shares with an exercise price of $7.42, exercisable starting 09/01/2026 and expiring 08/31/2035. The filing is signed by an attorney-in-fact on behalf of the reporting person.
Northern Technologies International Corp. (NTIC) reporting person Lee Sunggyu, a company director, filed a Form 4 disclosing insider transactions dated 09/01/2025. The filing shows a disposition of 3,319 shares of common stock and the acquisition by exercise of 16,287 stock options (exercise price shown as $7.42). After the transactions the filing reports beneficial ownership of 16,287 shares (direct). The form was signed by an attorney-in-fact on 09/03/2025.
Narayan Ramani, a director of Northern Technologies International Corp. (NTIC), reported transactions dated 09/01/2025. The filing shows a disposition of 106,763 shares of common stock and the acquisition through exercise of a stock option for 16,287 shares at a $7.42 exercise price (shares issued 09/01/2026 expiration 08/31/2035). After the reported transactions, the filing records 16,287 shares beneficially owned directly. The form was signed by an attorney-in-fact on 09/03/2025.
Northern Technologies International Corp. (NTIC) director Richard Nigon reported an acquisition of 8,086 restricted shares on 09/01/2025 under the companys 2024 Stock Incentive Plan. The transaction is coded as an acquisition with a $0 price because the shares are issuable upon settlement of restricted stock units (RSUs).
The Form 4 shows the reporting person now beneficially owns 47,148 shares in total, which includes the 8,086 RSUs. The RSUs are conditioned on Mr. Nigon remaining a director and are scheduled to vest on 09/01/2026, at which time the shares will be issued upon settlement.
Northern Technologies International Corp. (NTIC) director Sarah E. Kemp was granted 6,739 restricted stock units (RSUs) on 09/01/2025 under the company's 2024 Stock Incentive Plan. The RSUs carry a $0 purchase price and are scheduled to vest on 09/01/2026, with settlement conditioned on Ms. Kemp remaining a director through the vesting date. Following the grant, Ms. Kemp is reported to beneficially own 16,270.373 shares, which includes the 6,739 RSUs pending vesting. The Form 4 was signed via attorney-in-fact on 09/03/2025.
Northern Technologies International Corp. (NTIC) director Cristina Lucia Duarte Pinho reported a grant of 6,739 restricted stock units (RSUs) on 09/01/2025. The RSUs were granted under the company’s 2024 Stock Incentive Plan and are conditioned on the reporting person remaining a director through the vesting date; they will vest and be issued on 09/01/2026. The transaction is reported with a $0 price because these are restricted stock units rather than open-market purchases. After the grant, the reporting person’s beneficial ownership is disclosed as 10,510 shares, which includes the 6,739 RSUs. The Form 4 was signed by an attorney-in-fact, Matthew C. Wolsfeld, on 09/03/2025.
Nancy E. Calderon, a director of Northern Technologies International Corporation (NTIC), reported a series of non-derivative stock transactions and restricted stock unit activity. The Form 4 lists multiple small acquisitions of common stock at prices between $7.35 and $13.29 on dates from 11/13/2024 through 08/13/2025. On 09/01/2025 the filing reports 6,739 restricted shares granted/issued with $0 price (noted as issuable upon vesting and settlement of a 2024 Stock Incentive Plan award). The filing states those 6,739 shares will vest on September 1, 2026 and are conditioned on the reporting person remaining a director through that vesting date. Following the reported transactions, the filing shows the reporting person beneficially owned 14,741.427 shares, which the explanation breaks down as 6,739 issuable RSU shares plus 46.7041 shares held in an IRA; the remaining balance reflects previously reported direct holdings. The Form 4 is signed by an attorney-in-fact on behalf of the reporting person.
On 07/24/2025 Northern Technologies International Corp. (NTIC) director Richard Nigon filed a Form 4 reporting two insider transactions. He exercised 12,000 stock options at an exercise price of $7.43 (Transaction Code M), converting them into common shares. A separate Code F entry shows the disposition of 10,873 shares at $8.20, typically representing shares withheld for taxes. After both moves, Nigon’s direct ownership stands at 39,062 shares; the related option position is now fully settled with zero derivative securities remaining. The exercised option was fully vested and would have expired on 08/31/2025.