NANX
insider transactionsNANOPHASE TECHNOLOGIES Corp — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
+37.6K
37.6K buy · 0 sell
Net value · 365d
$68.1K
$68.1K in · $0 out
Sentiment · 365d
Net buying
100% buying · 0% selling
Open-market trades · 365d
7
37.6K buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Buy·P
Director
$2.9K
1.5K sh · $1.91
Own +0%
-
Buy·P
Director
$1.9K
1.0K sh · $1.92
Own +0%
-
Buy·P
Director
$9.4K
5.0K sh · $1.89
Own +0%
-
Buy·P
Director
$9.8K
5.0K sh · $1.95
Own +0%
-
Buy·P
Director
$489
267 sh · $1.83
Own +0%
-
Buy·P
Director
$9.3K
5.0K sh · $1.87
Own +0%
-
Buy·P
Director
$34.2K
19.8K sh · $1.73
Own +1%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Dec 24, 2025 | WHITMORE R JANET | Buy P | 1.5K | $2.9K |
| Dec 24, 2025 | WHITMORE R JANET | Buy P | 1.0K | $1.9K |
| Nov 19, 2025 | WHITMORE R JANET | Buy P | 5.0K | $9.4K |
| Nov 19, 2025 | WHITMORE R JANET | Buy P | 5.0K | $9.8K |
| Nov 18, 2025 | WHITMORE R JANET | Buy P | 267 | $489 |
| Nov 17, 2025 | WHITMORE R JANET | Buy P | 5.0K | $9.3K |
| Nov 14, 2025 | WHITMORE R JANET | Buy P | 19.8K | $34.2K |
About NANX insider trading
This page tracks insider transactions for NANOPHASE TECHNOLOGIES Corp (NANX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.