Standard Nuclear, Inc.
STDN- Exchange
- NYSE
- Industry
- Industrial Inorganic Chemicals
- SEC CIK
- 0002086716
In the last 90 days, Standard Nuclear, Inc. insiders filed 1 open-market purchase and 0 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Holders of 5% or more of STDN
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Standard Nuclear, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Decisive Point Group, LLC | 13G | 17.83%26.6M shares | New | Jul 23, 20261 filing | Jul 23, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
1 Schedule 13D or 13G filing on Standard Nuclear, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jul 23, 20266:41 PM ET | Decisive Point Group, LLCand 7 others | 13G | 17.83%26.6M shares | New | Jul 16, 2026 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Standard Nuclear, Inc. shares.
No Form 144 notices for Standard Nuclear, Inc. are on file.