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Ian Seth Jacobs is President, CEO, CFO, Secretary at Deep Fission. OQRO lists 1 transaction filed with the SEC under this name, the latest on Aug 28, 2025, each linked to the official Form 4.
President, CEO, CFO, Secretary
Disclosures on record
1
Companies involved
1
Deep FissionFISN
Aug 26, 2025Bought~$3disclosed Aug 28
DetailsOfficial recordAs of the latest filing on , Ian Seth Jacobs reported holding 275,000 shares of Deep Fission (FISN), worth about $567K at the last close of $2 (Nov 13, 2026).
| Company | Shares reported | How held | Last close | Value at last close | Reported |
|---|---|---|---|---|---|
| Deep Fission FISN | 275,000 | 275K direct | $2 | $567K | Aug 26, 2025 |
Is this Ian Seth Jacobs’s net worth? No. A Form 4 reports the shares an insider owns in one company after each transaction, directly or through trusts and entities. It says nothing about cash, other investments, property or debt, options not yet exercised are not counted here, and a holding reported some time ago may have changed without a new filing. The value is shares times the last stored close, not a price anyone received. Sources: the filings listed below, each linked to EDGAR. Compare with the biggest insider stakes.
On the latest SEC Form 4, dated Aug 26, 2025, Ian Seth Jacobs reported holding 275,000 shares of Deep Fission (FISN). At the last close of $2 on Nov 13, 2026, that is about $567K. This is the stake disclosed in filings, not a net worth.
Ian Seth Jacobs bought shares on the open market in 2025 across 2 companies. Sales in 1 of the 10 years since 2017.
In SEC filings since 2017: the latest open-market purchase is from 2025; the latest open-market sale is from 2017.
2 companies: Deep Fission (FISN, 2025), Exicure (XCUR, 2017).
Ian Seth Jacobs bought shares on the open market in 2025 across 2 companies. Sales in 1 of the 10 years since 2017.
Ian Seth Jacobs reported 1 open-market purchase and 1 sale since 2017; purchases in 2025.
| Year | Bought | Sold |
|---|---|---|
| 2025 | $31×1 trade | — |
| 2017 | — | $1.1K1×1 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.
Ian Seth Jacobs reported 1 open-market purchase and 0 sales here, 2025.
Ian Seth Jacobs reported 0 open-market purchases and 1 sale here, 2017.
Closing prices and the companies' last annual figures; a − or + is a fact of the close, not a forecast.
