Question 1

Who are the insiders buying DEEP FISSION, INC. stock?

Accepted Answer

InsiderAct tracks all open-market purchases of DEEP FISSION, INC. stock by corporate insiders — including officers, directors, and shareholders owning more than 10% — sourced from public SEC Form 4 filings.

Question 2

What does insider buying at a company mean?

Accepted Answer

When a corporate officer, director, or major shareholder purchases their own company's stock on the open market using personal funds, it signals confidence in the company's outlook. This is especially meaningful when multiple insiders buy within the same 7–14 day window (cluster buying) or when the purchase size exceeds $100,000.

Question 3

How do I find cluster buying signals for a company?

Accepted Answer

InsiderAct automatically detects cluster buying — two or more insiders independently purchasing shares within a 14-day window. When a cluster buy signal is active for a company, it appears prominently on the company's InsiderAct page and on the Signals tab.

Question 4

Has DEEP FISSION, INC. had any recent large insider purchases?

Accepted Answer

InsiderAct tracks all open-market purchases of $100,000 or more at DEEP FISSION, INC.. Large insider purchases are flagged as high-conviction signals because they represent meaningful personal capital commitments by executives or directors who have direct visibility into the company's operations and prospects.

Question 5

Where do the insider transactions on this page come from?

Accepted Answer

All transactions shown on InsiderAct company pages are sourced directly from SEC EDGAR Form 4 filings — the mandatory public disclosures that corporate insiders must submit within 2 business days of any stock transaction. InsiderAct ingests these filings in near real time and filters for open-market purchases and sales.


2026-03-10	2026-03-09	Schmitz William Mark	CFO	Award	223,000	$15.00	$3,345,000
2026-03-10	2026-03-09	Angell Jonathon	Director	Award	3,334	$0.00	$0
2026-03-10	2026-03-09	Goldman Tepper Leslie	Director	Award	3,334	$0.00	$0
2026-03-10	2026-03-09	Glanville Thomas S	Director	Award	3,334	$0.00	$0
2026-03-10	2026-03-09	Janover Blake	Director	Award	3,334	$0.00	$0
2026-03-10	2026-03-09	Muller Elizabeth	CEO	Award	2,600,000	$15.00	$39,000,000
2026-03-10	2026-03-09	Muller Richard	CTO	Award	223,000	$15.00	$3,345,000
2026-03-10	2026-03-09	Brasel Michael Allen	COO	Award	445,000	$15.00	$6,675,000
2026-03-10	2026-03-09	Peres Mark Wayne	CNO	Award	223,000	$15.00	$3,345,000
2026-03-10	2026-03-09	Gordon Jonathan H	General Counsel	Award	223,000	$15.00	$3,345,000

NONE

Latest Insider Transactions

Want to see more transactions?