Heather Kiessling
Chief Financial Officer · ASP Isotopes Inc.
- 2025
- Oct 22, 2026
- 5
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Heather Kiessling files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Paul Elliot Mann - $3.07M in ASPI purchases and sales in the last 12 months
- Robert Ainscow - $832K in ASPI purchases and sales in the last 12 months
- Donald George Ainscow - $92K in ASPI purchases and sales in the last 12 months
- Robert John Andrew Ryan - $62K in ASPI purchases and sales in the last 12 months
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Frequently asked questions
Who is Heather Kiessling?
Heather Kiessling is a corporate insider, tracked as Chief Financial Officer of ASP Isotopes Inc. (ASPI). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Heather Kiessling submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Heather Kiessling been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($48K) across all tracked filings.
