Insider Transactions Reported by 12 Insiders of DEEP FISSION, INC.

Location
Berkeley, CA

There are no Buy or Sell transactions made by insiders since 18 Mar 2025

DEEP FISSION, INC. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Michael Allen Brasel Chief Operating Officer 09 Mar 2026
Elizabeth Muller Chief Executive Officer 09 Mar 2026
Leslie Goldman Tepper Director 09 Mar 2026
Jonathon Angell Director 09 Mar 2026
Thomas S. Glanville Director 09 Mar 2026
Blake Janover Director 09 Mar 2026
Richard Muller Chief Technology Officer 09 Mar 2026
Mark Wayne Peres Chief Nuclear Officer 09 Mar 2026
Jonathan H. Gordon General Counsel 09 Mar 2026
William A. Schmitz Chief Financial Officer 09 Mar 2026
Mark N. Tompkins The reporting person is a former director and former 10% owner in the Issuer. 05 Sep 2025
Ian Seth Jacobs President, CEO, CFO, Secretary, Director 26 Aug 2025

Recent Insider Transactions by Companies or Individuals for DEEP FISSION, INC.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Blake Janover Restricted Stock Unit Award 3.33% 3,334 103,334 09 Mar 2026 Direct
Elizabeth Muller Employee Stock Option (right to buy) Award 167.7% 2,600,000 4,150,300 09 Mar 2026 Direct
Richard Muller Employee Stock Option (right to buy) Award 34.3% 223,000 872,363 09 Mar 2026 Direct
Michael Allen Brasel Employee Stock Option (right to buy) Award 523.5% 445,000 530,000 09 Mar 2026 Direct
Mark Wayne Peres Employee Stock Option (right to buy) Award 557.5% 223,000 263,000 09 Mar 2026 Direct
Jonathan H. Gordon Employee Stock Option (right to buy) Award 212.4% 223,000 328,000 09 Mar 2026 Direct
William A. Schmitz Employee Stock Option (right to buy) Award 22755.1% 223,000 223,980 09 Mar 2026 Direct
Jonathon Angell Restricted Stock Unit Award 3.33% 3,334 103,334 09 Mar 2026 Direct
Leslie Goldman Tepper Restricted Stock Unit Award 3.33% 3,334 103,334 09 Mar 2026 Direct
Thomas S. Glanville Restricted Stock Unit Award 3.33% 3,334 103,334 09 Mar 2026 Direct
Mark Wayne Peres Employee Stock Option (right to buy) Award 15,000 15,000 19 Feb 2026 Direct
Mark Wayne Peres Restricted Stock Unit Award 25,000 25,000 19 Feb 2026 Direct
Michael Allen Brasel Employee Stock Option (right to buy) Award 15,000 15,000 18 Feb 2026 Direct
William Mark Schmitz Employee Stock Option (right to buy) Award 15,000 15,000 18 Feb 2026 Direct
Jonathan H. Gordon Employee Stock Option (right to buy) Award 20,000 20,000 18 Feb 2026 Direct
Blake Janover Restricted Stock Unit Award 100,000 100,000 19 Dec 2025 Direct
Elizabeth Muller Restricted Stock Units Award 549,451 549,451 09 Dec 2025 Direct
Elizabeth Muller Stock Option (right to buy) Award 22.6% 183,150 994,849 09 Dec 2025 Direct
Thomas S. Glanville Restricted Stock Unit Award 100,000 100,000 12 Nov 2025 Direct
Jonathon Angell Restricted Stock Unit Award 100,000 100,000 12 Nov 2025 Direct
Tepper Leslie Goldman Restricted Stock Units Award 100,000 100,000 12 Nov 2025 Direct
Michael Allen Brasel Employee Stock Option (right to buy) Award 70,000 70,000 07 Nov 2025 Direct
Jonathan H. Gordon Employee Stock Option (right to buy) Award 85,000 85,000 07 Nov 2025 Direct
Richard Muller Common Stock Award 5,196,426 5,196,426 05 Sep 2025 Direct
Elizabeth Muller Common Stock Award 5,057,855 5,057,855 05 Sep 2025 By Muller Family Trust
Elizabeth Muller Common Stock Award 5,196,426 5,196,426 05 Sep 2025 Direct
William Mark Schmitz Common Stock Award 103,928 103,928 05 Sep 2025 Direct
Mark N. Tompkins Common Stock Other -60% -2,833,333 1,891,667 05 Sep 2025 Direct
Mark N. Tompkins Common Stock Sale -0.53% -25,000 4,725,000 26 Aug 2025 Direct
Ian Seth Jacobs Common Stock Purchase 10% 25,000 275,000 26 Aug 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.