This is a tax-motivated insider sale tied to a large restricted stock vesting, not a discretionary reduction. The 251,275-share filing is modest relative to the 2.2M-share award and the company's float. Monitor for actual execution on Form 4, but no bearish signal here — the insider is simply covering a tax obligation.
Price Chart
Executive Summary
Director and officer Paul Elliot Mann filed a Form 144 notice of intent to sell 251,275 shares of ASP Isotopes common stock, with an aggregate market value of approximately $1.95 million based on the May 29, 2026 closing price of $7.78. The shares were acquired as compensation via a restricted stock award on May 28, 2026, and the sale is explicitly for satisfying tax liabilities from the quarterly vesting of a 2,233,555-share award. This is a routine tax-motivated sale by an insider, not a discretionary portfolio liquidation.
Key Facts
- Insider Paul Elliot Mann (Director & Officer) filed Form 144 to sell 251,275 shares.
- Aggregate market value of proposed sale: ~$1.95M at $7.78/share (May 29 close).
- Shares were acquired as compensation via restricted stock award on May 28, 2026.
- Sale is explicitly to satisfy income tax liabilities from quarterly vesting of a 2,233,555-share award.
- Company market cap is ~$1.0B; proposed sale represents ~0.2% of market cap.
- Previous sales by same insider noted: 162,153 shares sold on March 2, 2026 at ~$881K.
Financial Impact
Proposed sale of ~$1.95M represents ~0.2% of ASPI's $1.0B market cap.
Risk Factors
- Insider could sell additional shares beyond this filing if market conditions change.
- Large restricted stock award (2.2M shares) creates ongoing overhang if insiders regularly sell to cover taxes.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001477932-26-003567 |
| Document: 0001477932-26-003567-index.html | 0001477932-26-003567 |
| Document: 0001477932-26-003567.txt | 0001477932-26-003567 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 today | 8-K | $2.07 | awaiting T+5 | — | $2.03 (−2.18%) |
Oct 15, 2026 11d ago | 8-K | $2.21 $2.09 | ▼ −5.43% | ▼ −4.42% | $2.03 (−8.34%) |
Oct 2, 2026 24d ago | 8-K | $2.91 $2.65 | ▼ −8.93% | ▼ −10.10% | $2.03 (−30.39%) |
Sep 25, 2026 4w ago | 144 | $2.60 $2.93 | ▲ +12.69% | ▲ +11.49% | $2.03 (−22.09%) |
Sep 9, 2026 6w ago | 425 | $3.82 $3.15 | ▼ −17.54% | ▼ −16.44% | $2.03 (−46.97%) |
Sep 2, 2026 7w ago | 144 | $3.90 $3.31 | ▼ −15.13% | ▼ −13.98% | $2.03 (−48.06%) |
Aug 20, 2026 9w ago | 425 / 8-K | $3.95 $4.04 | ▲ +2.41% | ▲ +1.29% | $2.03 (−48.65%) |
Aug 18, 2026 9w ago | 8-K | $3.86 $4.00 | ▲ +3.63% | ▲ +3.83% | $2.03 (−47.52%) |
Aug 16, 2026 10w ago | Institutional Cluster | $4.02 $3.89 | ▼ −3.23% | ▼ −2.04% | $2.03 (−49.61%) |
Aug 5, 2026 11w ago | 425 | $4.10 $4.28 | ▲ +4.39% | ▲ +3.18% | $2.03 (−50.60%) |
US Market Status
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