This is a routine, pre-planned sale to cover tax obligations from equity vesting and not an indicator of negative sentiment. Given the small size relative to company market cap and the director’s use of a 10b5-1 plan, traders should view this as administrative rather than strategic.
Price Chart
Executive Summary
Moore Duncan, a director at ASP Isotopes Inc., filed a Form 144 to sell up to 25,469 shares of common stock, valued at approximately $137,000 based on the April 15, 2026 closing price of $5.38. The sale is part of a Rule 10b5-1 trading plan and is intended to cover tax liabilities from the vesting of a restricted stock award.
Key Facts
- Reporting person: Moore Duncan, Director
- Number of shares proposed for sale: 25,469
- Aggregate market value: ~$137,000 (based on $5.38 closing price on April 15, 2026)
- Sale pursuant to a Rule 10b5-1 trading plan
- Purpose: To satisfy income tax liabilities from quarterly vesting of restricted stock award
- Shares acquired: As compensation via Restricted Stock Award on November 12, 2025
Financial Impact
Approximately $137,000 in potential share sales, representing minimal dilution or market impact given ASP Isotopes' $643M market cap.
Risk Factors
- Minimal near-term selling pressure from this filing
- Perception risk if multiple insiders file similar notices concurrently, though none observed here
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001477932-26-002386 |
| Document: 0001477932-26-002386-index.html | 0001477932-26-002386 |
| Document: 0001477932-26-002386.txt | 0001477932-26-002386 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 today | 8-K | $2.07 | awaiting T+5 | — | $2.03 (−2.18%) |
Oct 15, 2026 11d ago | 8-K | $2.21 $2.09 | ▼ −5.43% | ▼ −4.42% | $2.03 (−8.34%) |
Oct 2, 2026 24d ago | 8-K | $2.91 $2.65 | ▼ −8.93% | ▼ −10.10% | $2.03 (−30.39%) |
Sep 25, 2026 4w ago | 144 | $2.60 $2.93 | ▲ +12.69% | ▲ +11.49% | $2.03 (−22.09%) |
Sep 9, 2026 6w ago | 425 | $3.82 $3.15 | ▼ −17.54% | ▼ −16.44% | $2.03 (−46.97%) |
Sep 2, 2026 7w ago | 144 | $3.90 $3.31 | ▼ −15.13% | ▼ −13.98% | $2.03 (−48.06%) |
Aug 20, 2026 9w ago | 425 / 8-K | $3.95 $4.04 | ▲ +2.41% | ▲ +1.29% | $2.03 (−48.65%) |
Aug 18, 2026 9w ago | 8-K | $3.86 $4.00 | ▲ +3.63% | ▲ +3.83% | $2.03 (−47.52%) |
Aug 16, 2026 10w ago | Institutional Cluster | $4.02 $3.89 | ▼ −3.23% | ▼ −2.04% | $2.03 (−49.61%) |
Aug 5, 2026 11w ago | 425 | $4.10 $4.28 | ▲ +4.39% | ▲ +3.18% | $2.03 (−50.60%) |
US Market Status
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