DEEP FISSION, INC. insider trading

FISNNASDAQ

$5.57+0.39 (+7.53%)as of Oct 2, 2026

“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.” — Peter Lynch

Insider Trading vs Stock Price data

Showing the 1Y range: Jun 18, 2026 to Oct 2, 2026. Price (-61.7%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Open market purchase

Open market sell

Marker size reflects transaction size.

Net dollar flow · Buy / Sell balance

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Key players

EMElizabeth MullerChief Executive Officer17.4079%of company
RMRichard MullerChief Technology Officer8.8216%of company
MNMark N. TompkinsOfficer3.2113%of company
JAJonathon AngellDirector0.5509%of company
ISIan Seth JacobsPresident, CEO, CFO, Secretary0.4668%of company
TLTepper Leslie GoldmanDirector0.2275%of company
WMWilliam Mark SchmitzChief Financial Officer0.1764%of company
MWMark Wayne PeresChief Nuclear Officer0.147%of company

AI Activity Analysis

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Insider activity

Fromto

Company	Insider / role	Action	ΔOwn	Avg price	Amount
No qualifying insider activity was found for the selected filters.

End of history · 0 transactions