Form 4 Filing: Muller Elizabeth Buys $22K of $FISN

INSIDER PURCHASE

⚡ MATERIALITY: 6/10

corporate issuer

DEEP FISSION, INC.

Ticker: $FISN

Transaction Value

$22K

Price/Share: $2.16

transaction date

2026-11-11

Shares: 10,000

Market Price Activity

HillSignal AI Analytical Report

SEC Form 4 documents direct changes in beneficial ownership of securities for public corporations. The reporting insider, Muller Elizabeth, holds the title of CEO, President at DEEP FISSION, INC..

On 2026-11-11, the insider transacted 10,000 shares.The shares were transacted at a weighted average price of $2.16 per share, resulting in a total market-relevant value of $22K.

Executive Summary Summary

Muller Elizabeth (CEO, President) bought $22K of $FISN

Post-Transaction Position: 10,000 shares

SEC Accession No: 0001104659-26-127276 (CIK: 2081850)

Verified Multi-Source Index

Verify the accuracy of this insider transaction and corporate entity independently. HillSignal pulls data directly from official SEC databases; use the sources below to corroborate.

SEC EDGAR FilingView Source Form 4

Yahoo Finance$FISN Quote & Profile

OpenCorporates RegistryVerify Corporate Identity

Google News$FISN News Coverage