Deep Fission, Inc.
Current role
FISN
Mark Pérès
Personal wealth note: Equibles reports source-backed professional activity and disclosed compensation; it does not estimate personal net worth.
About Mark Pérès
Deep Fission, Inc. reported in an 8-K filed February 25, 2026 that Mark Pérès was appointed Chief Nuclear Officer, effective February 19, 2026.
“On February 18, 2026, the Compensation Committee of the Board of Directors (the "Compensation Committee") of Deep Fission, Inc. (the "Company") approved the appointment of Mark Pérès as Chief Nuclear Officer of the Company, effective February 19, 2026, and approved the material terms of his compensation in connection therewith.”
Summary generated from SEC filings and earnings-call records held by Equibles.
Affiliation history
Recorded current and former roles; source labels appear when available.
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Deep Fission, Inc. (FISN)
Proxy statement
Current2026-02-19–present
Company network
Recorded roles and call appearances connecting this person to public companies.
Leadership on record at Deep Fission, Inc.
Other people whose current roles at this company are on record from its filings.
- Elizabeth A. Muller CEO
- Elizabeth Muller CEO, Board Member
- Liz Muller CEO, Board Member
- Mark Schmitz CFO
- William (Mark) Schmitz CFO
- Michael Brasel COO
- Richard A. Muller CTO
- Richard Muller CTO, Board Member
- Jon Gordon General Counsel
- Blake E. Janover Board Member
Recent activity
Earnings-call and investor-event appearances, plus filed executive appointments or departures, newest first.