// company-profile
Mdu Resources Group Inc
MDUExchangeNYSESectorMining & Quarrying of Nonmetallic Minerals (No Fuels)Filings80Insiders27
// api This Mdu Resources Group Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Mdu Resources Group Inc insiders bought $0 across 2 transactions with no open-market sales.
- Most active insider: DURKIN MARIAN M with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Mdu Resources Group Inc as of 2026-03-31
Total reported AUM
$3.50B
QoQ change
+11.5%
Reporting period
2026-03-31
#1
BlackRock, Inc.
CIK 2012383
$368.9M
17.8M shares
#2
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 313028
$285.1M
13.8M shares
#3
EARNEST PARTNERS LLC
CIK 1102578
$204.8M
9.9M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 31, 2026 | DURKIN MARIAN M | MDU | Award | 157 | $0.00 | $0K |
| Mar 31, 2026 | Dosch Vernon A. | MDU | Award | 1,334 | $0.00 | $0K |
| Feb 18, 2026 | Vollmer Jason L | MDU | Tax Withholding | 36,766 | $20.36 | $749K |
| Feb 18, 2026 | Johnson Rob L. | MDU | Tax Withholding | 10,630 | $20.36 | $216K |
| Feb 18, 2026 | Kivisto Nicole A | MDU | Tax Withholding | 35,668 | $20.36 | $726K |
45 more transactions hidden
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