FISN · Insider trading · 13F holders · Congress trades
Deep Fission Inc (FISN)
Who is buying and selling FISN: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 2
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
FISN at a glance
- No open-market insider purchases or sales of FISN were filed in the last 90 days.
- 2 13F filers hold FISN among their 50 largest positions, worth $18.0M combined. The biggest bets by portfolio weight are Elevation Wealth Management LLC (2.5%) and Blue Owl Capital Holdings LP (2.2%).
- No member of Congress has disclosed a trade in FISN.
FISN insider trading
No open-market insider purchases or sales of FISN were filed in the last 90 days.
Who owns FISN? Hedge funds and superinvestors
2 13F filers hold FISN among their 50 largest positions, worth $18.0M combined. The biggest bets by portfolio weight are Elevation Wealth Management LLC (2.5%) and Blue Owl Capital Holdings LP (2.2%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Blue Owl Capital Holdings LPHedge fund | 2.2% | $14.7M | 1,333,333 | — | Q2 2026 |
| Elevation Wealth Management LLCWealth manager | 2.5% | $3.3M | 298,335 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 2). Screen FISN in the grand portfolio →
FISN stock trades by members of Congress
No member of Congress has disclosed a trade in FISN.
FISN questions and answers
Are insiders buying FISN stock?
No open-market insider purchases or sales of FISN were filed in the last 90 days.
Which hedge funds own FISN?
2 13F filers hold FISN among their 50 largest positions, worth $18.0M combined. The biggest bets by portfolio weight are Elevation Wealth Management LLC (2.5%) and Blue Owl Capital Holdings LP (2.2%).
Has Congress traded FISN?
No member of Congress has disclosed a trade in FISN.
Who is the largest holder of FISN?
Among 13F filers, Blue Owl Capital Holdings LP reports the largest FISN position, $14.7M (1,333,333 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Elevation Wealth Management LLC's: 2.5% of its portfolio.
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