SEC Filing Update: #FISN Deep Fission, Inc. : $2.08

Sector: Others | YTD: 🔽 -82.85% The SEC disclosed Today (13-NOV-2026) that TOMPKINS MARK N. has DECREASED #FISN Shares by -35.83% 🔴 * Previous Holdings: 3.16M Shares * Current Holdings: 2.03M Shares * Decrease -1.13M * Decreased (%)-35.83% * Ownership: 3.4% https://www.thinksabio.com/reports/isr/FISN Institutional ownership in #FISN has been steadily rising over the past 2 quarters in Shares: Q1 2026: 0.00 Q2 2026: 2.30M 📈 Stay ahead of institutional buy/sell moves — Sign up free at ThinkSabio: Sign Up Free →