ASP Isotopes COO sells 22,500 shares for taxes
ASP Isotopes Inc. COO Robert Ainscow reported an open-market sale of 22,500 shares of Common Stock at a weighted average price of $5.205 per share.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Form Type
4
Rhea-AI Filing Summary
ASP Isotopes Inc. COO Robert Ainscow reported an open-market sale of 22,500 shares of Common Stock at a weighted average price of $5.205 per share. According to the disclosure, this was a "sell to cover" transaction under a Rule 10b5-1 trading plan adopted on June 9, 2025 to cover tax withholding obligations tied to vesting restricted stock awards. After the sale, he directly held 1,490,317 shares, so the transaction represents a small portion of his overall position.
Insider Trade Summary 10b5-1
Net Seller: 22,500 shares
Net Sell
1 txn
Insider
Ainscow Robert
Role
COO
Sold
22,500 shs ($117K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 22,500 | $5.205 | $117K |
Holdings After Transaction:
Common Stock — 1,490,317 shares (Direct)
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 $5.055 to $5.52, 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.
Key Figures
Shares sold: 22,500 shares
Weighted average sale price: $5.205 per share
Post-transaction holdings: 1,490,317 shares
+1 more
4 metrics
Shares sold
22,500 shares
Open-market sale on April 16, 2026
Weighted average sale price
$5.205 per share
Common Stock, open-market sale
Post-transaction holdings
1,490,317 shares
Common Stock directly owned after sale
Trade price range
$5.055 to $5.52
Range of prices for individual sale transactions
Key Terms
Rule 10b5-1 trading plan, sell to cover, restricted stock awards, weighted average price
4 terms
Rule 10b5-1 trading plan regulatory
"sales effected pursuant to a Rule 10b5-1 trading plan adopted by the filing person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
sell to cover financial
"Represents "sell to cover" sales effected pursuant to a Rule 10b5-1 trading plan"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
restricted stock awards financial
"tax withholding obligations in connection with the vesting of restricted stock awards"
Restricted stock awards are company shares given to employees or executives that cannot be sold or transferred until certain conditions — like staying with the company for a set time or meeting performance targets — are met, like a gift that is locked in a safe until rules are satisfied. Investors care because these awards tie management’s pay to company performance, can increase the number of shares outstanding when they become tradable (dilution), and may signal expected future selling pressure or commitment to long-term growth.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transaction did ASP Isotopes (ASPI) report for its COO?
ASP Isotopes reported that COO Robert Ainscow sold 22,500 shares of Common Stock at a weighted average price of $5.205. The filing states this was a sell-to-cover transaction linked to tax withholding on vesting restricted stock awards under a pre-established Rule 10b5-1 plan.
Was the ASP Isotopes COO’s stock sale under a Rule 10b5-1 plan?
Yes. The filing states the "sell to cover" trades were effected pursuant to a Rule 10b5-1 trading plan adopted on June 9, 2025. Such plans pre-schedule transactions, providing structure for sales and reducing the significance of trade timing as an indicator of insider sentiment.
AI-generated analysis. How Rhea-AI works. Not financial advice.
