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Insider · CIK 0002081872

Richard Muller

officerdirector

Files at FISN (DEEP FISSION, INC.). First filing -, latest -.

Richard Muller files SEC Form 4 as officer and director at FISN (DEEP FISSION, INC.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.

A track record needs three past buys with six months of prices behind them; Richard Muller has 0, so none is measured yet.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold

Signals

This insider’s open-market buys and sells, scored.

No scored open-market trades yet.

Transactions

Every row this insider has filed, 2 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Mar 9, 2026FISN
DEEP FISSION, INC.
AGrant or award
Employee Stock Option (right to buy)derivative
+223,000$0.00$0872,363Mar 10, 2026
Sep 5, 2025FISN
DEEP FISSION, INC.
AGrant or award
Common Stock
+5,196,426--5,196,426Sep 9, 2025

Questions about Richard Muller

Answered from the filings on this page, as of the latest one.

Is Richard Muller buying or selling?

Richard Muller has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.

How did Richard Muller's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Richard Muller has 0.

Where does Richard Muller file Form 4?

Richard Muller has filed Form 4 at FISN (DEEP FISSION, INC.) as Chief Technology Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Richard Muller: insider trades and track record | InsiderTell