Heather Kiessling, Chief Financial Officer at ASP Isotopes Inc. (ASPI), sold 80,000 shares at $5.80 ($464K) on 2025-12-18, disclosed to the SEC on 2025-12-29.
Open-market sale of $464k ASPI by Chief Financial Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
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