NTIC insider buying
1 cluster buyNORTHERN TECHNOLOGIES INTERNATIONAL CORP · Materials
When two or more insiders at NORTHERN TECHNOLOGIES INTERNATIONAL CORP buy NTIC on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in NTIC plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Apr 25 – May 6, 2025Detected May 6, 20252 insidersTotal bought$15.4KMarket cap$84.1M
All notable open-market buys in NTIC
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| May 6, 2025 | von Falkenhausen Konstantincluster Director | 1,100 | $7.23 | $8.0K | SEC ↗ |
| Apr 25, 2025 | Calderon Nancy E.cluster Director | 1,000 | $7.45 | $7.5K | SEC ↗ |
| Apr 23, 2024 | Director | 1,275 | $15.70 | $20.0K | SEC ↗ |
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NTIC insider buying — FAQ
- Are insiders buying NTIC stock?
- Yes — 3 distinct insiders have bought NTIC (NORTHERN TECHNOLOGIES INTERNATIONAL CORP) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was May 6, 2025.
- How much NTIC stock have insiders bought?
- Insiders have bought a combined $35.4K of NTIC across 3 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in NTIC?
- A cluster buy is two or more distinct NORTHERN TECHNOLOGIES INTERNATIONAL CORP insiders — officers, directors, or 10% owners — each buying NTIC on the open market within a rolling window. NTIC has 1 detected cluster buy to date.
- Where does this NTIC insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in NTIC
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy NTIC within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding NTIC.