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FISN · NASDAQ · Electric Services
Deep Fission (FISN) · oqro.io/stocks/FISN · printed today. Every figure comes from a public filing, linked on the page online. Not investment advice.
$2.06−0.02 (−0.96%)
Close of Nov 13, 2026, vs Nov 12 · end-of-day, not a live quote
Yes. Insiders of Deep Fission (FISN) filed 1 open-market purchase in the last 90 days; the latest was filed on Nov 13, 2026.
Since 2025, Deep Fission insiders reported 2 open-market purchases and 1 sale on Forms 4 and 5, with purchases in 2 different years, most recently 2026.
No open-market sale by an insider of Deep Fission (FISN) was filed with the SEC in the last 90 days.
No trade in Deep Fission (FISN) was disclosed by a member of Congress in the last 12 months.
From official filings only: SEC Forms 4, 5 and 144 for insiders, House and Senate periodic transaction reports for Congress, SEC Form 13F for funds, Form 8-K for company events and USAspending for federal contracts. Every record on OQRO links to its source. It is public data, not investment advice.
−85.9% (−$12.50) from Jun 18, 2026 to Nov 13, 2026 · adjusted daily closes
Adjusted close went from $14.56 on Jun 18, 2026 to $2.06 on Nov 13, 2026 (−85.9%). Disclosed in this range: 1 insider trade, 0 pre-arranged insider sales, 0 Congress trades.
Counts of filings OQRO holds, by the date each was filed or the award started. Every figure links to its official SEC, House, Senate or USAspending record.
Electric Services company based in Berkeley, Ca.
Last 12 months
Not enough history
Market value
$121M
Short interest: 2.46M shares sold short (4.2% of shares outstanding), +37.8% vs the previous count, 3.3 days of normal trading to buy them back. FINRA, as of Oct 30, 2026.
Revenue
—
Free cash flow, last 12 months
−$68M
This quarter −$18.9M, a year earlier −$2.86M
Net debt
—
Debt —, cash $63.4M, at Sep 30, 2026
Net income, last 12 months
−$81.9M
From the company's own quarterly and annual reports to the SEC. Free cash flow (cash from operations minus capital spending), net debt (debt minus cash) and 12-month totals are calculated by OQRO.
Insider buying
First insider buy since Aug 2025Traded Nov 11 · filed 2 days later
Since the trade −0.5% · S&P 500 −0.7% · to Nov 13
Fund moves
The holder reported owning less than 5%, which ends its duty to keep reporting this stake.
Insider buying
10 days before an 8-KTraded Aug 26, 2025 · filed 2 days later
The CEO of Deep Fission paid $3 out of pocket for Deep Fission shares. Shares held went up 10% with this purchase.
Insider selling
Traded Aug 26, 2025 · filed 2 days laterNot reported under a pre-arranged trading plan
A Deep Fission director sold $3 of Deep Fission shares. The filing does not indicate a pre-arranged trading plan.
Prices are daily closes from Polygon.io. Company figures come from its own SEC filings. Past moves are not a forecast. OQRO reports what was filed and never tells you what to buy or sell.
Against the S&P 500 over the year
Since Jun 18, 2026, FISN is down 85.9% and the index fund is up 1.0%: 87 points behind the market. Traders call a stock that beats the index over a period a relative-strength leader.
How much FISN moves
End-of-day prices. These figures describe the past year and say nothing about what comes next.
Insiders of Deep Fission reported 2 open-market purchases and 1 sale since 2025; purchases in 2 different years, most recently 2026.
| Year | Bought | Sold |
|---|---|---|
| 2026 | $22K1×1 trade | — |
| 2025 | $31×1 trade | $31×1 trade |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. Dollar totals use the price the filer reported; lines with no price count as trades without a value.
Past financial statements can no longer be relied on
8-K on sec.govSaid its annual or quarterly report would be late
“Deep Fission, Inc. (the "Company") has determined that it is unable to file its Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the "Form 10-K"), within the prescribed time period without unreasonable effort or expense, because the Company requires additional time to complete its financial statements and related disclosures to be included therein. In connection with preparation of the Form 10-”
NT 10-K on sec.govChanged auditor
8-K on sec.govFrom the company's 8-K, 10-K and 10-Q filings over the last two years. A flag is a reason to read the filing, not a verdict: many departures are planned retirements and many listing notices are resolved. Insider sales are shown for timing only; they are separate filings.
