Who
Heather Kiessling
Chief Financial Officer
Company insider
Files Form 4 as: Chief Financial Officer, ASP Isotopes.
In numbers
- Trades disclosed
- 9
- Buys
- 0
- Sells
- 3
- Bought
- $0
- Sold
- $1.0M
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 1 Jul 2024
- Last trade
- 1 Jul 2026
- Last filed
- 2 Jul 2026
Companies traded
Activity over time
1 Dec 2025 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 1 Jul 2026filed 2 Jul 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Sold | $145K23,124 at $6.28 | filing |
| 1 Jul 2026filed 2 Jul 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Sold | $145K23,124 at $6.28 | filing |
| 28 May 2026filed 3 Jun 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Code A | —840,000 | filing |
| 28 May 2026filed 3 Jun 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Code A | —840,000 | filing |
| 15 Apr 2026filed 17 Apr 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Sold | $127K23,124 at $5.48 | filing |
| 15 Apr 2026filed 17 Apr 2026 | ASPI ASP IsotopesChemicals | SEC FORM 4 Sold | $127K23,124 at $5.48 | filing |
| 18 Dec 2025filed 29 Dec 2025 | ASPI ASP IsotopesChemicals | SEC FORM 4 Sold | $464K80,000 at $5.80 | filing |
| 14 Apr 2025filed 15 Apr 2025 | ASPI ASP IsotopesChemicals | SEC FORM 4 Code A | —400,000 | filing |
| 1 Jul 2024filed 1 Jul 2024 | ASPI ASP IsotopesChemicals | SEC FORM 4 Code A | —400,000 | filing |
News
No headline names them, or the companies they trade most, lately.