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ASP Isotopes Inc. (ASPI)
NASDAQ: ASPI · Real-Time Price · USD
Basic Materials · Specialty Chemicals
2.08+0.14 (+6.94%)
Insider Score
––Not scored
ASPI Insider Score
No insider has filed an open-market purchase or sale here in the last 90 days, so there is nothing to score yet.
ASPI Stock Insider Trading Activity
ASPI stock’s insider trading shows 4 sales on the open market for an estimated $2.06M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Ainscow Robert COO | Sell | 8,438 | $7.00 | $59.07K | 0.4% | 2,281,879 | Jun 8, 2026 | — | Form 4 |
| Mann Paul Elliot CEO | Sell | 83,759 | $7.76 | $649.97K | 0.9% | 9,579,845 | Jun 3, 2026 | — | Form 4 |
| Mann Paul Elliot CEO | Sell | 83,758 | $8.29 | $694.35K | 0.9% | 9,663,424 | Jun 2, 2026 | — | Form 4 |
| Mann Paul Elliot CEO | Sell | 83,758 | $7.88 | $660.01K | 0.9% | 9,747,182 | Jun 1, 2026 | — | Form 4 |
| Mann Paul Elliot CEO | Award | 2,233,555 | — | — | 29.4% | 9,830,940 | May 28, 2026 | — | Form 4 |
| Ainscow Robert COO | Award | 800,000 | — | — | 53.7% | 2,290,317 | May 28, 2026 | — | Form 4 |
| Ainscow Donald George Other | Award | 400,000 | — | — | 80.0% | 900,000 | May 28, 2026 | — | Form 4 |
| Kiessling Heather CFO | Award | 840,000 | — | — | 118% | 1,549,376 | May 28, 2026 | — | Form 4 |
| Moore Duncan Director | Sell | 11,642 | $5.21 | $60.65K | 1.1% | 1,044,928 | Apr 16, 2026 | — | Form 4 |
| Ainscow Robert COO | Sell | 22,500 | $5.21 | $117.22K | 1.5% | 1,490,317 | Apr 16, 2026 | — | Form 4 |
| Kiessling Heather CFO | Sell | 23,124 | $5.48 | $126.72K | 3.2% | 709,376 | Apr 15, 2026 | — | Form 4 |
| Ainscow Robert COO | Sell | 8,438 | $5.44 | $45.90K | 0.5% | 1,537,817 | Mar 6, 2026 | — | Form 4 |
| Ainscow Robert COO | Sell | 25,000 | $4.51 | $112.75K | 1.6% | 1,512,817 | Mar 6, 2026 | — | Form 4 |
| Mann Paul Elliot Other | Sell | 162,153 | $5.44 | $882.11K | 2.2% | 7,597,385 | Mar 2, 2026 | — | Form 4 |
| Moore Duncan Director | Award | 36,548 | — | — | 3.6% | 1,056,570 | Dec 18, 2025 | — | Form 4 |
| Gorley Michael Director | Award | 36,548 | — | — | 44.9% | 117,908 | Dec 18, 2025 | — | Form 4 |
| Ryan Robert John Andrew Director | Award | 36,548 | — | — | 5.9% | 652,222 | Dec 18, 2025 | — | Form 4 |
| Hunter Ralph L. JR Director | Award | 36,548 | — | — | 349% | 47,018 | Dec 18, 2025 | — | Form 4 |
| Kiessling Heather CFO | Sell | 80,000 | $5.80 | $464.00K | 9.8% | 732,500 | Dec 18, 2025 | — | Form 4 |
| Wider Todd Director | Award | 36,548 | — | — | 5.0% | 772,247 | Dec 18, 2025 | — | Form 4 |
| Ainscow Robert CEO | Sell | 8,438 | $6.20 | $52.32K | 0.5% | 1,546,255 | Dec 8, 2025 | — | Form 4 |
| Mann Paul Elliot Director | Sell | 162,153 | $5.75 | $932.38K | 2.0% | 7,759,538 | Dec 1, 2025 | — | Form 4 |
| Mann Paul Elliot Director | Sell | 50,000 | $5.77 | $288.50K | 0.6% | 7,921,691 | Nov 25, 2025 | — | Form 4 |
| Ainscow Robert CEO | Sell | 25,000 | $5.77 | $144.25K | 1.6% | 1,554,693 | Nov 25, 2025 | — | Form 4 |
| Ainscow Robert CEO | Sell | 67,500 | $7.51 | $506.93K | 4.1% | 1,579,693 | Nov 17, 2025 | — | Form 4 |
| Mann Paul Elliot Director | Sell | 112,500 | $7.51 | $844.88K | 1.4% | 7,971,691 | Nov 17, 2025 | — | Form 4 |
| Wider Todd Director | Award | 25,469 | — | — | 3.6% | 735,699 | Nov 12, 2025 | — | Form 4 |
| Moore Duncan Director | Award | 25,469 | — | — | 2.6% | 1,020,022 | Nov 12, 2025 | — | Form 4 |
| Ainscow Robert CEO | Sell | 22,500 | $13.60 | $306.00K | 1.3% | 1,647,193 | Oct 14, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.