NANX Insider Buying — Recent SEC Form 4 Activity
Track insider buying activity for NANOPHASE TECHNOLOGIES Corp ($NANX). See every SEC Form 4 purchase by CEOs, CFOs, directors, and 10% owners over the last 90 days — sourced directly from EDGAR.
In the past 90 days, 1 insider at NANOPHASE TECHNOLOGIES Corp (NANX) made open-market purchases totaling $68,060.58. The most recent transaction was on 2025-12-30.
Recent Insider Purchases at NANOPHASE TECHNOLOGIES Corp
| Date | Insider | Shares | Value |
|---|---|---|---|
| 2025-12-30 | WHITMORE R JANET | 1,500 | $2,865.00 |
| 2025-12-30 | WHITMORE R JANET | 1,000 | $1,922.00 |
| 2025-12-11 | WHITMORE R JANET | 5,000 | $9,450.00 |
| 2025-12-11 | WHITMORE R JANET | 5,000 | $9,750.00 |
| 2025-12-11 | WHITMORE R JANET | 267 | $488.61 |
| 2025-12-11 | WHITMORE R JANET | 5,000 | $9,350.00 |
| 2025-12-11 | WHITMORE R JANET | 19,789 | $34,234.97 |
Top Insiders Buying NANX
- $68,060.587 purchases
Frequently Asked — NANX Insider Buying
What is NANX insider buying?
$NANX insider buying refers to open-market purchases of NANOPHASE TECHNOLOGIES Corp stock by corporate insiders — officers, directors, and shareholders owning more than 10% of the company. Every purchase is disclosed to the SEC on Form 4 within two business days and is shown on this page.
Why does NANX insider activity matter?
Insiders have the best view into NANOPHASE TECHNOLOGIES Corp's operations. When they buy their own stock with personal money — rather than selling option grants — it signals conviction. Clusters of insider buying (two or more insiders purchasing within 14 days) have historically preceded above-market returns.
Where does this NANX insider data come from?
Every transaction on this page is sourced directly from SEC EDGAR Form 4 filings. InsiderAct ingests these filings in near real time and filters for open-market purchases (transaction code P).
How do I get alerts when NANX insiders buy?
Add $NANX to your InsiderAct watchlist and enable email alerts. You'll be notified when a new Form 4 purchase is filed — usually within hours of the transaction.
What is a "cluster buy" signal?
InsiderAct flags a cluster buy when two or more independent insiders at the same company buy on the open market within a 14-day window. Cluster buys are the highest-conviction insider signal we track.
Related Insider Activity
Other stocks with recent insider buying on SEC Form 4
Want alerts when NANX insiders buy?
Add $NANX to your watchlist and get notified the moment a new Form 4 is filed.
Data sourced from SEC Form 4 filings via EDGAR. Read more: What is SEC Form 4?