ASPI
insider transactionsASP Isotopes Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-259.7K
0 buy · 259.7K sell
Net value · 30d
-$2.1M
$0 in · $2.1M out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
4
0 buy · 259.7K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
Transactions · 30d
-
Sell·S
COO · 10b5-1
$59.1K
8.4K sh · $7.00
Own -0%
-
Sell·S
Mann Paul Elliot KEY
Chairman and CEO · 10b5-1
$2.0M
251.3K sh · $7.98 avg · 3 lots
Own -3%
-
Grant·A
Mann Paul Elliot KEY
Chairman and CEO · 10b5-1
—
2.2M sh
Own +29%
-
Grant·A
Chief Operating Officer
—
800.0K sh
Own +54%
-
Grant·A
EVP, Gen Counsel, Secretary
—
400.0K sh
Own +80%
-
Grant·A
Chief Financial Officer
—
840.0K sh
Own +118%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 8, 2026 | Ainscow Robert 10b5-1 | Sell S | 8.4K | $59.1K |
| Jun 3, 2026 | Mann Paul Elliot KEY 10b5-1 | Sell S | 251.3K3 lots | $2.0M |
| May 28, 2026 | Mann Paul Elliot KEY 10b5-1 | Grant A | 2.2M | — |
| May 28, 2026 | Ainscow Robert | Grant A | 800.0K | — |
| May 28, 2026 | Ainscow Donald George | Grant A | 400.0K | — |
| May 28, 2026 | Kiessling Heather KEY | Grant A | 840.0K | — |
Buy Sell Non-market (grant · exercise · gift)
About ASPI insider trading
This page tracks insider transactions for ASP Isotopes Inc. (ASPI) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.