XNAS · FISN
-0.55% · -$0.0600 · Vol 254.5K
Market closed · last close 4:00 PM ET · price as of 16:42:13 ET
Deep Fission, Inc. Common Stock

Deep Fission, Inc. Common Stock

ELECTRIC SERVICES
$10.93

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About Deep Fission, Inc. Common Stock
ELECTRIC SERVICES
Listed since
2026
Country
US

Deep Fission Inc is a nuclear energy technology company developing a small modular reactor based on established pressurized water reactor technology, with novel emplacement in deep boreholes approximately one mile below the Earth's surface. Its reactor, which is referred to as the Gravity Reactor, will leverage subsurface conditions to support key containment and operating functions, including the use of hydrostatic pressure from a water column within the borehole to support reactor operating pressure and cooling, and the surrounding geological formation to provide structural confinement and shielding. The group's focus is within the United States, where electricity demand growth, expanding digital infrastructure, and evolving energy policy.

Key statistics

Reported fields plus Veridion-computed history. Unsourced tiles are omitted.

Open
$10.88
Day high
$11.76
Day low
$10.50
Previous close
$10.99
52W high
$14.56
-24.93% from high
52W low
$9.94
21% of range
Market cap
$663.1M
Shares out
60.3M
Volume
254.5K
VWAP
$11.28
Price history computed in-house
1W
+9.96%
SMA 50 $10.90 · above
SMA 200 $10.90 · above
52W position 21%
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SEC Form 4 ledger

FISN insider activity

Deep Fission, Inc. Common Stock

Score
Coverage building
Pressure
Mixed
Filings
0
Buys / sells
0 / 0
Net value
Not disclosed
Insiders
0
Cluster

No multi-insider buying cluster in the last 90 days

Net pressure

Mixed: Not disclosed across loaded Form 4 rows.

Convergence not established

Loaded official disclosures do not show all three sources aligned on this ticker.

Coverage building

The current Form 4 feed did not return value-bearing open-market rows for FISN.

Source: SEC EDGAR Form 4. Rows with missing price or quantity are excluded rather than zero-filled.Methodology
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FISN lobbying filings, year to date.

Registered lobbying filings matched to Deep Fission, Inc. Common Stock.

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Latest news · FISN
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