Heather Kiessling serves as Executive at ASP Isotopes Inc., where they oversee executive responsibilities. Since joining the company, Heather Kiessling has executed 1 insider transactions totaling $464.0K, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 18, 2025 involved selling 80,000 shares valued at $464.0K.
| DATE | TICKER | VALUE | TYPE | SHARES | PRICE | 10b5-1 |
|---|---|---|---|---|---|---|
| Dec 18, 2025 | ASPI | $464.0K | Sale | 80,000 | $5.80 | Discretionary |
Heather Kiessling currently holds 732,500 shares of ASP Isotopes Inc. (ASPI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Heather Kiessling has been a net seller of ASPI stock. They have purchased $0 and sold $464.0K worth of shares.
Heather Kiessling's most recent insider trade was on Dec 18, 2025, when they sold 80,000 shares at $5.80 per share.
Get notified when new Form 4 filings are submitted