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Are ASP Isotopes Insiders Buying or Selling?
ASP Isotopes (ASPI) has had 4 insider transactions in the past 90 days, all sells. The most recent was Heather Kiessling, who sold 23,124 shares at $6.28 on July 1, 2026.
Insider trading patterns can signal confidence or concern from the people who know the company best. AltIndex tracks insider transactions as one of 25+ alternative data signals in the ASPI AI Score. For government officials trading this stock, see ASPI congressional trading.
Who’s Trading ASP Isotopes Stock?
| Insider | Activity | Trades | Last Trade |
|---|---|---|---|
| Mann Paul Elliot | Sold $9.2M | 10 | Jun 3, 2026 |
| Robert Ainscow | Sold $2.2M | 11 | Jun 8, 2026 |
| Todd Wider | Sold $950,000 | 2 | Jun 30, 2026 |
| Michael Gorley | Sold $810,000 | 2 | Jun 30, 2026 |
| Duncan Moore | Sold $760,000 | 2 | Apr 16, 2026 |
| Heather Kiessling | Sold $740,000 | 3 | Jul 1, 2026 |
Recent ASP Isotopes Insider Transactions
| Insider | Transaction Date | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Heather Kiessling | Jul 1, 2026 | Sell | 23,124 | $6.28 | $150,000 |
| Ainscow Donald George | Jun 30, 2026 | Sell | 100,000 | $6.14 | $610,000 |
| Todd Wider | Jun 30, 2026 | Sell | 50,000 | $6.12 | $310,000 |
| Michael Gorley | Jun 30, 2026 | Sell | 30,000 | $6.27 | $190,000 |
| Robert Ainscow | Jun 8, 2026 | Sell | 8,438 | $7 | $59,000 |
| Mann Paul Elliot | Jun 3, 2026 | Sell | 83,759 | $7.76 | $650,000 |
| Mann Paul Elliot | Jun 2, 2026 | Sell | 83,758 | $8.29 | $690,000 |
| Robert Ainscow | Apr 16, 2026 | Sell | 22,500 | $5.21 | $120,000 |
| Duncan Moore | Apr 16, 2026 | Sell | 11,642 | $5.21 | $61,000 |
| Heather Kiessling | Apr 15, 2026 | Sell | 23,124 | $5.48 | $130,000 |
| Robert Ainscow | Mar 6, 2026 | Sell | 25,000 | $4.51 | $110,000 |
| Robert Ainscow | Mar 6, 2026 | Sell | 8,438 | $5.44 | $46,000 |
| Mann Paul Elliot | Mar 2, 2026 | Sell | 162,153 | $5.44 | $880,000 |
| Heather Kiessling | Dec 18, 2025 | Sell | 80,000 | $5.8 | $460,000 |
| Robert Ainscow | Dec 8, 2025 | Sell | 8,438 | $6.2 | $52,000 |
| Mann Paul Elliot | Dec 1, 2025 | Sell | 162,153 | $5.75 | $930,000 |
| Robert Ainscow | Nov 25, 2025 | Sell | 25,000 | $5.77 | $140,000 |
| Mann Paul Elliot | Nov 25, 2025 | Sell | 50,000 | $5.77 | $290,000 |
| Mann Paul Elliot | Nov 17, 2025 | Sell | 112,500 | $7.51 | $840,000 |
| Robert Ainscow | Nov 17, 2025 | Sell | 67,500 | $7.51 | $510,000 |
| Robert Ainscow | Oct 14, 2025 | Sell | 22,500 | $13.6 | $310,000 |
| Michael Gorley | Sep 30, 2025 | Sell | 64,000 | $9.75 | $620,000 |
| Todd Wider | Sep 15, 2025 | Sell | 74,108 | $8.76 | $650,000 |
| Mann Paul Elliot | Sep 9, 2025 | Sell | 81,077 | $8.39 | $680,000 |
| Mann Paul Elliot | Sep 8, 2025 | Sell | 81,076 | $8.53 | $690,000 |
| Robert Ainscow | Sep 8, 2025 | Sell | 8,438 | $8.53 | $72,000 |
| Duncan Moore | Aug 29, 2025 | Sell | 75,000 | $9.28 | $700,000 |
| Mann Paul Elliot | Apr 17, 2025 | Sell | 316,666 | $5.62 | $1.8M |
| Robert Ainscow | Apr 17, 2025 | Sell | 66,668 | $5.62 | $370,000 |
| Mann Paul Elliot | Apr 16, 2025 | Sell | 316,667 | $5.45 | $1.7M |
| Robert Ainscow | Apr 16, 2025 | Sell | 66,666 | $5.45 | $360,000 |
Frequently Asked Questions: ASP Isotopes Insider Trading
In the past 90 days, ASP Isotopes insiders have made 0 buys and 4 sells. The net selling may indicate insiders are taking profits or reducing exposure.
The most recent sale was by Heather Kiessling who sold 23,124 shares on July 1, 2026. View all transactions in the table on this page.
Insider buying is generally a stronger signal than insider selling, since insiders may sell for personal reasons (diversification, taxes) but typically buy only when they believe the stock is undervalued. AltIndex uses insider transaction patterns alongside 25+ other signals in the AI Score.
Mann Paul Elliot has sold the most ASPI stock in the last 2 years, with a total value of $9.2M.
The total value of insider transactions for ASP Isotopes in the last 2 years is negative, amounting to -$15M. This suggests that insiders have predominantly sold shares, which could reflect various personal or financial considerations rather than a straightforward outlook on the company's future performance.




