SLSN insider buying and SEC filings, explained
Nanophase Technologies Corp. · CIK 883107
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$63K
Insiders who bought
1
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Dec 24, 2025 | Purchase (code P) | R. Janet Whitmore (Director) bought 2,500 shares at about $1.91 ($5K), reported as a purchase (code P). Holdings up <1% to 2,086,698 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 30, 2025 |
| Nov 14–19, 2025 | Purchase (code P) | R. Janet Whitmore (Director) bought 35,056 shares between Nov 14, 2025 and Nov 19, 2025 at about $1.80 ($63K), reported as a purchase (code P). Holdings up 2% to 2,084,198 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 11, 2025 |
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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