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Equibles

STDN · Standard Nuclear, Inc. · Holdings

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$12.00 -0.25 (-2.04%)
Rebalance outlook locked
Market Cap
$1.92B
Shares
156.55M
Volume · Oct 20 159.8K Avg daily vol (3M) 751.07K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of STDN: 13F, 13D and 13G, insiders and funds →
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
Holders: 2
Total Value: $479,650
Total Shares: 40,614

Holder Concentration

Across 2 13F filers
Top Holder
99.1%
of institutional value
Top 5
100.0%
of institutional value
Top 10
100.0%
of institutional value
HHI
9,830
Highly concentrated

Who Holds STDN

Last 1 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Sep 30, 2026: 2 filers, like-for-like change —.

Holder type Share Filers Change
Registered adviser 100.0% 2 new

The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Showing 2 of 2
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Morangie Management LLC $475,529 99.14% 40,265
TOTH FINANCIAL ADVISORY CORP $4,121 0.86% 349
Key facts CIK 2086716 CUSIP 853678100 13F (30d) 2 filings 2 filers Visit website Investor relations