ASP Isotopes Inc.·4

Mar 6, 9:45 PM ET

Ainscow Robert 4

4 · ASP Isotopes Inc. · Filed Mar 6, 2026

Research Summary

AI-generated summary of this filing

Updated

ASP Isotopes (ASPI) COO Robert Ainscow Sells 8,438 Shares

What Happened Robert Ainscow, Chief Operating Officer of ASP Isotopes Inc. (ASPI), reported the sale of 8,438 shares on March 6, 2026. The shares were disposed for aggregate proceeds of approximately $45,894 at a weighted-average price of $5.44 per share. The filing lists the transaction as a sale (S) effected pursuant to a trading plan.

Key Details

  • Transaction date: 2026-03-06.
  • Transaction type: Sale (open market/private sale) under a Rule 10b5-1 trading plan; described as a "sell-to-cover" to satisfy tax withholding on vested restricted stock awards (Footnote F1).
  • Price: Weighted average $5.44; individual trades ranged from $5.00 to $5.65 (Footnote F2). The filer can provide a per-price breakdown on request.
  • Proceeds: ~$45,894.
  • Shares owned after transaction: Not specified in the provided filing.
  • Timeliness: Filed the same day (2026-03-06), indicating a timely report.

Context This was a sell-to-cover sale under a pre-established 10b5-1 plan to meet tax withholding obligations related to restricted stock vesting. Such transactions are typically routine and do not necessarily indicate a change in insider sentiment; purchases generally carry more signal value for bullish intent.

Insider Transaction Report

Form 4
Period: 2026-03-06
Transactions
  • Sale

    Common Stock

    [F1][F2]
    2026-03-06$5.44/sh8,438$45,8941,537,817 total
Footnotes (2)
  • [F1]Represents "sell to cover" sales effected pursuant to a Rule 10b5-1 trading plan adopted by the filing person on June 9, 2025 to cover tax withholding obligations in connection with the vesting of restricted stock awards.
  • [F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.00 to $5.65, inclusive. The reporting person undertakes to provide ASP Isotopes Inc. (the "Company"), any stockholder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in Footnote 2.
Signature
/s/ Donald Ainscow, as attorney-in-fact|2026-03-06

Documents

1 file
  • 4
    form4.xmlPrimary

    FORM 4