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Net insider buying / selling at ASP Isotopes (ASPI) over the last 2 years. Updated Jul 2, 2026

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?

InsiderActivityTradesLast 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 KiesslingJul 1, 2026Sell23,124$6.28$150,000
Ainscow Donald GeorgeJun 30, 2026Sell100,000$6.14$610,000
Todd WiderJun 30, 2026Sell50,000$6.12$310,000
Michael GorleyJun 30, 2026Sell30,000$6.27$190,000
Robert AinscowJun 8, 2026Sell8,438$7$59,000
Mann Paul ElliotJun 3, 2026Sell83,759$7.76$650,000
Mann Paul ElliotJun 2, 2026Sell83,758$8.29$690,000
Robert AinscowApr 16, 2026Sell22,500$5.21$120,000
Duncan MooreApr 16, 2026Sell11,642$5.21$61,000
Heather KiesslingApr 15, 2026Sell23,124$5.48$130,000
Robert AinscowMar 6, 2026Sell25,000$4.51$110,000
Robert AinscowMar 6, 2026Sell8,438$5.44$46,000
Mann Paul ElliotMar 2, 2026Sell162,153$5.44$880,000
Heather KiesslingDec 18, 2025Sell80,000$5.8$460,000
Robert AinscowDec 8, 2025Sell8,438$6.2$52,000
Mann Paul ElliotDec 1, 2025Sell162,153$5.75$930,000
Robert AinscowNov 25, 2025Sell25,000$5.77$140,000
Mann Paul ElliotNov 25, 2025Sell50,000$5.77$290,000
Mann Paul ElliotNov 17, 2025Sell112,500$7.51$840,000
Robert AinscowNov 17, 2025Sell67,500$7.51$510,000
Robert AinscowOct 14, 2025Sell22,500$13.6$310,000
Michael GorleySep 30, 2025Sell64,000$9.75$620,000
Todd WiderSep 15, 2025Sell74,108$8.76$650,000
Mann Paul ElliotSep 9, 2025Sell81,077$8.39$680,000
Mann Paul ElliotSep 8, 2025Sell81,076$8.53$690,000
Robert AinscowSep 8, 2025Sell8,438$8.53$72,000
Duncan MooreAug 29, 2025Sell75,000$9.28$700,000
Mann Paul ElliotApr 17, 2025Sell316,666$5.62$1.8M
Robert AinscowApr 17, 2025Sell66,668$5.62$370,000
Mann Paul ElliotApr 16, 2025Sell316,667$5.45$1.7M
Robert AinscowApr 16, 2025Sell66,666$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.

The analytics provided are estimates and not a substitute for professional advice. All investments involve risks, including possible capital loss.