Loading
Northern Technologies International Corp Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest, by von Falkenhausen Konstantin, was filed 06 May 2025.
Northern Technologies International Corp: what insiders have been doing
Northern Technologies International Corp is a Chemicals & Materials company. Its directors and officers file their transactions with SEC (Form 4). Over the twelve months to 22 October 2026, 17 filings were filed, from 9 insiders.
All open-market trades in the period are sales: 3 sales worth €196k, by 2 insiders, with no purchase on record. At €112k, the sale published on 31 July 2026 by Lynch G Patrick is the largest of the period (0.17% of market cap).
With 17 filings in twelve months, the company is quieter than the median of 24 filings across the 3,171 companies we follow on the same exchange. Since 2017, the database holds 10 purchases and 4 sales by insiders of the company. For the fiscal year to 31 August 2025, the annual 10-K puts revenue at 84.2 m USD and net income at 17,619 USD, and the dividend at 0.16 USD per share.
Typically, a trade is published a median of 2 days after it takes place. Section 16 rules allow two business days to file each Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives.
These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Insider Decl.
99
Thresholds
n/a
Buy Volume
€117,535
10 ops. · all time
Sell Volume
€216,585
4 ops. · all time
Who traded when
BuySaleG. Patrick Lynch2 sales
Nancy E. Calderon1 buy
Richard Nigon1 sale
von Falkenhausen Konstantin1 buy
Since the insiders bought
- +10.5%Entry US$7.23 · Close at T+365 US$7.99
- +6.1%Entry US$7.50 · Close at T+365 US$7.96
- -57.0%Entry US$17.39 · Close at T+365 US$7.47
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 19,593 of 26,284 companies
34.7
score / 100
Value31
Quality39
FCF yld-2.1%
Earn yld0.0%
EV/EBITDA16.0x
ROE-0.1%
Gross mgn38%
Net mgn0.0%
Debt/EBITDA2.4x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended August 2025 · cache
US$7.70
Analyst consensus
1 analysts1.00/5
US$13.00Target US$13.00(+69%)US$13.00
Income statement
RevenueUS$84.2M
Gross profitUS$31.7M38% margin
EBITDAUS$5.4M6% margin
Net incomeUS$17.6k-1.3% margin
Valuation
PER (forward)25.7x
P/Book1.0x
Beta0.16
Balance sheet & cash
Market capUS$73.1M
Total debtUS$13.1M
Free Cash Flow-US$1.5M
Debt / Equity20%
Profitability & ownership
ROE-0.1%
ROA-1.1%
% insiders19.2%
% institutions30.6%
Last declaration on 9 September 2026
Declarations99 total
43,805 shares0Common StockSEC:0002153871-26-000002:0
7,426 shares0Common StockSEC:0001213869-26-000009:0
6,188 shares0Common StockSEC:0001960551-26-000001:0
6,188 shares0Common StockSEC:0001791493-26-000001:0
2.533 shares@ US$8.660.1% of flowCommon StockSEC:0001791477-26-000001:3
6,188 shares0Common StockSEC:0001302082-26-000001:0
2.521 shares@ US$8.120.1% of flowCommon StockSEC:0001791477-26-000001:0
2.698 shares@ US$8.120.1% of flowCommon StockSEC:0001791477-26-000001:1
2.365 shares@ US$8.660.1% of flowCommon StockSEC:0001791477-26-000001:2
6,188 shares0Common StockSEC:0001791477-26-000001:4
2 shares@ US$8.100.0000% mcap0.0% of flowCommon StockSEC:0001258554-26-000004:1
16,072 shares@ US$6.700.14% mcap13.9% of flowCommon StockSEC:0001258554-26-000004:0
16,070 shares@ US$7.99670.17% mcap16.5% of flowCommon StockSEC:0001258554-26-000004:2
16,072 shares@ US$8.050.17% mcap16.7% of flowCommon StockSEC144:0001258554-26-000003
12,000 shares@ US$8.0040.13% mcap16.6% of flowCommon StockSEC:0001213869-26-000008:1
12,000 shares@ US$6.700.11% mcap13.9% of flowCommon StockSEC:0001213869-26-000008:0
12,000 shares@ US$8.00410.13% mcap16.6% of flowCommon StockSEC144:0001972481-26-000234
6,739 shares0Common StockSEC:0001791477-25-000004:8
11.38 shares@ US$13.290.4% of flowCommon StockSEC:0001791477-25-000004:1
6.43 shares@ US$11.260.2% of flowCommon StockSEC:0001791477-25-000004:2
13.5 shares@ US$11.260.4% of flowCommon StockSEC:0001791477-25-000004:3
2.78 shares@ US$7.350.0% of flowCommon StockSEC:0001791477-25-000004:4
2.97 shares@ US$7.350.0% of flowCommon StockSEC:0001791477-25-000004:5
2.65 shares@ US$7.720.0% of flowCommon StockSEC:0001791477-25-000004:6
2.83 shares@ US$7.720.0% of flowCommon StockSEC:0001791477-25-000004:7
25 of 99 declarations
About Northern Technologies International Corp
Northern Technologies International Corporation (NASDAQ: NTIC) is a U.S.-listed industrial materials company headquartered in Circle Pines, Minnesota, in the United States. The group’s business is built around applied materials science and proprietary formulations, with two core franchises: corrosion prevention solutions marketed primarily under the ZERUST® brand, and bio-based, biodegradable polymer resin compounds marketed under Natur-Tec®. For investors, NTIC is best understood as a niche specialty materials company rather than a broad-based chemicals producer.
NTIC was founded in 1970 in Lino Lakes, Minnesota, originally as Northern Instruments, Inc., with an initial business in oil analyzer instruments. Over time, the company evolved away from that legacy activity and into a global provider of industrial corrosion prevention products and environmental materials. That long operating history matters because it helps explain the company’s technical positioning: NTIC has spent decades building proprietary know-how, product certifications, and channel relationships in specialized end markets where performance and compliance are critical.
Read moreShow less
The ZERUST® segment is NTIC’s primary business and, according to the company, it accounts for the majority of consolidated sales. The offering includes corrosion-inhibiting packaging, vapor diffusers, specialty chemicals, and tailored solutions for industrial customers, including applications in automotive, machinery, export packaging, and oil and gas infrastructure. In these markets, NTIC competes on product efficacy, technical service, and the ability to reduce corrosion-related downtime and maintenance costs. This is a relatively defensible niche, but it is also exposed to cyclical industrial demand and project timing.
Natur-Tec® addresses a different thematic market: compostable and biodegradable plastics. The product line includes resin compounds for blown film, extrusion coating, thermoforming, and injection molding, as well as finished compostable bags and other disposable products. This business is supported by sustainability regulations and packaging substitution trends, particularly in markets where single-use plastics are being restricted. NTIC distributes these products internationally, with operations and partners across North America, China, India, Vietnam, Brazil, Mexico, Europe, and the Middle East through subsidiaries, joint ventures, independent distributors, and agents. The company reports sales in more than 65 countries, underscoring its international reach despite its relatively small size.
From a competitive standpoint, NTIC occupies a specialized position: it is not a commodity player, but a technology-led supplier with recognized brands and application-specific solutions. Recent company communications for fiscal 2025 highlighted challenging market conditions and timing delays in ZERUST® oil and gas and Natur-Tec® orders, while also emphasizing continued global business-development investment to support a return to growth in fiscal 2026 and beyond. For market context, NTIC trades on the NASDAQ in the United States, and recent SEC Form 4 insider transaction activity has kept governance and ownership dynamics in focus for investors.
