NANOPHASE TECHNOLOGIES Corp (SLSN)
Data as of , from SEC Form 4 filings.
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About NANOPHASE TECHNOLOGIES Corp (SLSN)
NANOPHASE TECHNOLOGIES Corp files with the SEC under CIK 0000883107 and is classified as perfumes, cosmetics and other toilet preparations. We track it alongside the rest of the Consumer Staples sector.
SLSN Form 4 activity by transaction type, last 90 days
No Form 4 activity for SLSN in the last 90 days.
SLSN insider transactions (Form 4)
273 Form 4 filings on record, the earliest from Nov 5, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| R. Janet Whitmore | Open-market purchase | Common Stock | 1,500 | $1.91 | $3K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 1,000 | $1.92 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 19,789 | $1.73 | $34K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 5,000 | $1.87 | $9K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 267 | $1.83 | $489 | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 5,000 | $1.95 | $10K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 5,000 | $1.89 | $9K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $0.90 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $1.05 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $1.18 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $0.84 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $1.10 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 2,000 | $0.99 | $2K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 10,000 | $0.68 | $7K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 10,000 | $0.82 | $8K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 6,667 | $0.45 | $3K | |
| R. Janet Whitmore | Open-market purchase | Common Stock | 6,666 | $1.17 | $8K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $0.90 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $1.05 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $1.18 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $0.84 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $1.10 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 2,000 | $0.99 | $2K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 10,000 | $0.68 | $7K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 10,000 | $0.82 | $8K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 6,667 | $0.45 | $3K | |
| R. Janet Whitmore | Option exercise | Common Stock (Right to Buy) | 20,000 | $1.17 | $23K |
SLSN insider trading FAQ
What is the latest insider trade for SLSN?
NANOPHASE TECHNOLOGIES Corp (SLSN) has filed no insider reports in the last 90 days. The most recent on record is dated 2025-12-30. The full record for SLSN runs to 3 Form 4 filings, the earliest from 2024-11-05. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying SLSN stock?
No insider purchases of SLSN were filed in the last 90 days. 17 purchases are on record for this company.
How many insiders are selling SLSN stock?
No insider sales of SLSN were filed in the last 90 days.
Where can I see SLSN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects SLSN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Consumer Staples companies with insider activity
Recent insider filings
3The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - R. Janet Whitmore view on EDGAR
- - R. Janet Whitmore view on EDGAR
- - R. Janet Whitmore view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Consumer Staples
- Where SLSN's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
Follow SLSN with a 7-day demo
- SLSN on your watchlist
- Every SLSN Form 4 filing on record
- Up to 3 months of SLSN price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
