MDU — MDU RES GROUP INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying MDU?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 2 tracked investors who changed their MDU position last quarter, 1 bought and 1 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).
- +1 tracked investor added or increased positions last quarter (Ray Dalio)
- +3 tracked investors reported holding MDU at their latest filing
- +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About MDU RES GROUP INC (MDU)
MDU RES GROUP INC (MDU) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $41M. Across recent filings, tracked investors recorded 4 new positions, 2 increased, 2 reduced, and 3 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in MDU
How many top investors track MDU
A small number of top investors own this.
MDU Ownership Composition
How MDU RES GROUP INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant96.9%
- Macro3.1%
Tracked investors currently reporting MDU
1 tracked investor has since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares1.9MValue$40.5M% Portfolio0.00%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares624.8KValue$13.3M% Portfolio0.00%
- Ray DalioJun 30, 2026Bridgewater AssociatesShares80.7KValue$1.7M% Portfolio0.01%
Previously held MDU
These investors reported MDU in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Steve Cohen | Point72 Asset Management | 240.4K | $6.6M | Sep 30, 2024 |
Recent activity
- $6.9MMay 15, 2026
- Sold$0(-100.00%)Aug 14, 2026
- New$3.3MMay 14, 2025
- Reduced$330.8K(-89.81%)Aug 13, 2025
- Increased$2.7M(651.62%)Nov 13, 2025
- Sold$0(-100.00%)Feb 13, 2026
- New$1.1MMay 15, 2026
- Increased$1.7M(53.26%)Aug 14, 2026
- Reduced$6.6M(-45.65%)Nov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- New$11.1MSep 16, 2024
Frequently asked questions
- How many institutional investors hold MDU?
- 3 tracked institutional investors disclosed a position in MDU (MDU RES GROUP INC) in their most recent 13F filing.
- Who is the largest institutional holder of MDU?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in MDU, valued at $41M.
- Did institutional ownership of MDU increase or decrease?
- Across recent 13F filings, tracked investors recorded 4 new positions, 2 increased, 2 reduced, and 3 fully exited MDU.
- Where does this MDU ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.