Deep Fission, Inc.

NasdaqGM:FISN Stock Report

Market Cap: US$672.1m

Deep Fission Management

Management criteria checks 0/4

We currently do not have sufficient information about the CEO.

Key information

Liz Muller

Chief executive officer

US$7.1m

Total compensation

CEO salary percentage5.62%
CEO tenure3yrs
CEO ownership17.0%
Management average tenureless than a year
Board average tenureless than a year

Recent management updates

Recent updates

CEO Compensation Analysis

How has Liz Muller's remuneration changed compared to Deep Fission's earnings?
DateTotal CompensationSalaryCompany Earnings
Mar 31 2026n/an/a

-US$79m

Dec 31 2025US$7mUS$400k

-US$61m

Sep 30 2025n/an/a

-US$51m

Jun 30 2025n/an/a

-US$13m

Mar 31 2025n/an/a

-US$8m

Dec 31 2024US$2mUS$279k

-US$6m

Compensation vs Market: Liz's total compensation ($USD7.11M) is above average for companies of similar size in the US market ($USD3.53M).

Compensation vs Earnings: Liz's compensation has increased whilst the company is unprofitable.

CEO

Liz Muller (48 yo)

3yrs
Tenure
US$7,111,956
Compensation

Ms. Elizabeth A. Muller, also known as Liz, is Co-Founded Deep Fission, Inc. in July 17, 2023 and is President and Chief Executive Officer since March 2024 and serves as its Chairman since March 2024. She...

Leadership Team

NamePositionTenureCompensationOwnership
Elizabeth Muller
Co-Founder3yrsUS$7.11m17%
$ 114.2m
Richard Muller
Co-Founder & CTO3yrsUS$1.70m0%
$ 0
Michael Brasel
Chief Operating Officerless than a yearUS$706.13k0.086%
$ 578.9k
William Schmitz
Chief Financial Officerless than a yearno data0.17%
$ 1.2m
Jen Stakich
Investor Relations Managerno datano datano data
Jonathan Gordon
General Counsel & Secretaryless than a yearno datano data
Chloe Frader
Vice President of Communicationsno datano datano data
Stacy Tarver Patterson
Chief Marketing Officerless than a yearno datano data
Mark Peres
Chief Nuclear Officerless than a yearno data0.14%
$ 964.8k
Rani Franovich
Vice President of Regulatory Affairsno datano datano data
Supna Zaidi
Director of Strategic Initiativesno datano datano data
Bryan Black
Vice President of Business Developmentno datano datano data
0.8yrs
Average Tenure
52yo
Average Age

Experienced Management: FISN's management team is not considered experienced ( 0.8 years average tenure), which suggests a new team.

Board Members

NamePositionTenureCompensationOwnership
Elizabeth Muller
Co-Founder3yrsUS$7.11m17%
$ 114.2m
Thomas Glanville
Independent Directorless than a yearUS$19.38k0%
$ 0
John Mather
Member of Advisory Boardno datano datano data
Mark Peters
Member of Advisory Boardno datano datano data
Steven Koonin
Member of Advisory Boardno datano datano data
Jabu Dayton
Member of Advisory Boardno datano datano data
Joanna Riley
Member of Advisory Boardno datano datano data
Kristin Sverchek
Member of Advisory Board1.3yrsno datano data
Allison Salisbury
Member of Advisory Boardno datano datano data
Leslie Goldman Tepper
Independent Directorless than a yearUS$19.25k0%
$ 0
Blake Janover
Independent Directorless than a yearUS$16.88k0%
$ 0
Patrick Huston
Member of Advisory Board1yrno datano data
0.8yrs
Average Tenure
58.5yo
Average Age

Experienced Board: FISN's board of directors are not considered experienced ( 0.8 years average tenure), which suggests a new board.

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/07/10 01:22
End of Day Share Price 2026/07/10 00:00
Earnings2026/03/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Deep Fission, Inc. is covered by 0 analysts. 0 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.