Heather Kiessling

Chief Financial Officer

Heather Kiessling (Chief Financial Officer) filed 3 Form 4 reports in the trailing twelve months (0 purchases, 3 sales, 1 filed past the two-business-day deadline), most often in ASP Isotopes Inc. (ASPI). The largest single filing was $464K of ASPI (80,000 sh × $5.80, as filed), executed Dec 18 2025.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 3 sells · 1 late

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$736K

shares × price, as filed

Last traded

Jul 1

Filed Jul 2

Median ADV $18.5M across their filed names

Open performance→

Volume by month

Buys $0 Sells $736K

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Basic Materials 3 filings

Sector per market data · by filing · past 12 months

Most traded names

ASPI

ASP Isotopes Inc. ASPI · 0 buys · 3 sells 3 filings

Recent filings

ASPISALE ASP Isotopes Inc. View filing → $145K
23,124 sh × $6.28
Exec Jul 1
Filed Jul 2 · 9:45 PM ET ASPISALE ASP Isotopes Inc. View filing → $127K
23,124 sh × $5.48
Exec Apr 15
Filed Apr 17 · 5:30 PM ET ASPISALE ASP Isotopes Inc. View filing → $464K
80,000 sh × $5.80
Exec Dec 18 2025
Filed Dec 29 2025 · 5:30 PM ET †