Mdu Resources Group Inc
MDU- Exchange
- NYSE
- Industry
- Mining & Quarrying of Nonmetallic Minerals (No Fuels)
- SEC CIK
- 0000067716
No open-market purchases or sales by Mdu Resources Group Inc insiders were filed in the last 90 days; 438 institutions reported holding it in 13F filings for Q2 2026, worth $4.12B in total; no superinvestor holds it.
Holders of 5% or more of MDU
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Mdu Resources Group Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Vanguard Group Inc | 13G/A | 11.27%23.0M shares | – | Jan 30, 20251 filing | Jan 30, 2025 | 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 Mdu Resources Group Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Jan 30, 20259:57 PM ET | Vanguard Group Inc | 13G/A | 11.27%23.0M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Mdu Resources Group Inc shares.
No Form 144 notices for Mdu Resources Group Inc are on file.