Mariner’s Deep Fission Inc FISN Stock Holding History
Bought
Maintained
Sold
Other funds holding FISN
CPIH
Mariner's FISN Position: Q3 2026 in Review
Mariner opened a new position in Deep Fission Inc (FISN) in Q3 2026: 120,557 shares worth $618K. The stake represents ﹤0.01% of the portfolio and ranks #2289 among its holdings.
25 funds tracked by Wall St. Rank hold FISN as of Q3 2026.
- Mariner held 120,557 shares of Deep Fission Inc worth $618K as of Q3 2026.
- Deep Fission Inc was a new Mariner position in Q3 2026.
- Deep Fission Inc made up ﹤0.01% of Mariner's portfolio in Q3 2026, its #2289 holding.
- 25 funds tracked by Wall St. Rank held Deep Fission Inc as of Q3 2026.
Based on Mariner's 13F filing for Q3 2026, filed 12 Nov 2026.