Deep Fission Inc IPO unlock schedule & public float
Lock-up schedule, public float and locked shares extracted from Deep Fission Inc's SEC prospectus. Shares shown are eligible to trade — lock-up expiry does not mean holders have sold or will sell.
Shares eligible to trade · by holder groupJun 18, 2026 → Dec 15, 2026 · 100% unlocked
Lock-up holders57.83M
IPO public float2.5M
Financials
Unprofitable
From SEC filings, latest FY ending Dec 31, 2025 · CIK 0001918102.
Revenue
—
Net income
-$61M
Gross margin
—
Cash
$23.72M
Metric
2025
2024
2023
2022
2021
Operating income
-$21.38M
-$4.1M
-$47.63K
-$49.41K
—
Net income
-$61M
-$5.71M
-$47.63K
-$49.41K
—
R&D expense
$6.62M
$661.18K
—
—
—
Cash & equivalents
$23.72M
$6.73M
—
$69
—
Total assets
$24.69M
$6.86M
$774
$69
—
Total liabilities
$2.4M
$10.94M
$110.23K
$61.9K
$12.42K
Shareholders' equity
$22.29M
-$4.08M
$460.26K
-$61.83K
-$12.42K
About Deep Fission Inc
Deep Fission Inc is an emerging nuclear energy technology company developing a small modular reactor concept and associated deployment approach. The business context is centered on advancing nuclear technology from development into commercial pathways, leveraging established reactor principles while pursuing a specific engineering concept for how systems could be emplaced.
What the company does
Focuses on assets, infrastructure, or technologies tied to energy, natural resources, or industrial supply chains.
Operates in markets influenced by commodity demand, project execution, permitting, capital intensity, and long-term customer needs.
Requires disciplined operations and financing to convert technical or resource potential into durable business value.
Business profile
Deep Fission Inc operates in an energy, resources, or industrial market where asset quality, project execution, commodity exposure, and capital intensity are important.
SEC IPO filings
Final prospectus
EDGAR filings resolved from FISN / CIK 0001918102.
Deep Fission announced the pricing of its IPO: 2,500,000 shares of common stock at $16.00 per share for $40 million in gross proceeds, plus an option for underwriters to buy up to 375,000 additional shares. The company said trading on Nasdaq under ticker FISN is expected to begin June 18, 2026, and the offering is anticipated to close June 22, 2026.
