STDN · Insider trading · 13F holders · Congress trades
Standard Nuclear, Inc. (STDN)
Who is buying and selling STDN: 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
- 1
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
STDN at a glance
- No open-market insider purchases or sales of STDN were filed in the last 90 days.
- 1 13F filer hold STDN among their 50 largest positions, worth $476K combined. The biggest bets by portfolio weight are Morangie Management LLC (0.4%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in STDN.
STDN insider trading
No open-market insider purchases or sales of STDN were filed in the last 90 days.
Who owns STDN? Hedge funds and superinvestors
1 13F filer hold STDN among their 50 largest positions, worth $476K combined. The biggest bets by portfolio weight are Morangie Management LLC (0.4%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Morangie Management LLCWealth manager | 0.4% | $476K | 40,265 | New | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1). Screen STDN in the grand portfolio →
STDN stock trades by members of Congress
No member of Congress has disclosed a trade in STDN.
STDN questions and answers
Are insiders buying STDN stock?
No open-market insider purchases or sales of STDN were filed in the last 90 days.
Which hedge funds own STDN?
1 13F filer hold STDN among their 50 largest positions, worth $476K combined. The biggest bets by portfolio weight are Morangie Management LLC (0.4%). In their latest 13Fs, 1 manager opened a new position and 0 added to one.
Has Congress traded STDN?
No member of Congress has disclosed a trade in STDN.
Who is the largest holder of STDN?
Among 13F filers, Morangie Management LLC reports the largest STDN position, $476K (40,265 shares) in its Q3 2026 13F. The biggest bet by portfolio weight is Morangie Management LLC's: 0.4% of its portfolio.
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