Transaction · 0001477932-26-006387

Kiessling Heather

Kiessling Heather, CFO, reported an open-market or private sale at ASP Isotopes Inc. involving 21830.000000 shares for an estimated $47807.70. Reported holdings after the transaction were 1504422.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SCFO
ASPIASP Isotopes Inc.
Trade date
—
Filing date
Oct 22, 2026
View on SEC Insider profile
Estimated value-$47.8kShares × reported price
Shares traded21.8k$2.19 per share
Holdings after1.50MDirect
% of reported position traded1.43%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 1,526,252 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Filing warnings

Notes recorded with this filing
1 warning
missing transaction dateThe filing did not provide a usable transaction date.

ASPI price since this filing

Daily closing prices, with the filing date and available return windows
ASPI · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago1w ago1d ago
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001477932-26-006387
Common Stock
Transaction date
—
Filed Oct 22, 2026, 01:45 AM
Shares
21,830 sh
$2.19 per share
Estimated value
-$47.8k
Computed from shares × price
Holdings after
1,504,422 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

+6 points

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Financial Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    Represents shares automatically sold by ASP Isotopes Inc.(the "Company") on behalf of the reporting person pursuant to a mandatory sell-to-cover provision in the award agreement required to cover mini…

Original filing · 0001477932-26-006387
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