Stock Ownership/MDU

MDU RES GROUP INC (MDU): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in MDU · Utilities. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
20
13F filers
Aggregate Value
$162.0M
Across holders
Last Price
$19.96
2026-08-24
Sector
Utilities
GICS
Quarterly fund activity13 increased6 reduced2 exited
Full exits: ADAGE CAPITAL PARTNERS GP, L.L.C., MARSHALL WACE, LLP
Institutional Holders of MDU
↗
20 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund1.91M$40.5M25.0%0.0%Added+$34.8MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund957K$20.3M12.5%0.0%Added+$579KQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund899K$19.1M11.8%0.0%Added+$8.8MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund727K$15.4M9.5%0.0%Added+$4.7MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund625K$13.3M8.2%0.0%Added+$6.2MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund451K$9.6M5.9%0.0%Reduced$-421KQ2 2026
Verition Fund Management LLC
CIK 0001454027
Hedge Fund300K$6.4M3.9%0.0%Unchanged+$0Q2 2026
Man Group plc
CIK 0001637460
Hedge Fund298K$6.3M3.9%0.0%Reduced$-1.7MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund235K$5.0M3.1%0.0%Added+$5.0MQ2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund224K$4.8M2.9%0.0%Reduced+$4.7MQ2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$40.5M· 25.0% of total· 0.0% port· 1.91M sh· +$34.8M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$20.3M· 12.5% of total· 0.0% port· 957K sh· +$579K QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$19.1M· 11.8% of total· 0.0% port· 899K sh· +$8.8M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$15.4M· 9.5% of total· 0.0% port· 727K sh· +$4.7M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$13.3M· 8.2% of total· 0.0% port· 625K sh· +$6.2M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$9.6M· 5.9% of total· 0.0% port· 451K sh· $-421K QoQ· Q2 2026
Verition Fund Management LLCUnchanged
Hedge Fund
$6.4M· 3.9% of total· 0.0% port· 300K sh· +$0 QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$6.3M· 3.9% of total· 0.0% port· 298K sh· $-1.7M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$5.0M· 3.1% of total· 0.0% port· 235K sh· +$5.0M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$4.8M· 2.9% of total· 0.0% port· 224K sh· +$4.7M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$4.2M· 2.6% of total· 0.0% port· 198K sh· +$584K QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$3.8M· 2.4% of total· 0.1% port· 181K sh· +$3.4M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$3.8M· 2.4% of total· 0.0% port· 180K sh· $-129K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$2.8M· 1.7% of total· 0.0% port· 133K sh· +$9K QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$2.1M· 1.3% of total· 0.0% port· 100K sh· — QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$1.7M· 1.1% of total· 0.0% port· 81K sh· +$595K QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$1.4M· 0.9% of total· 0.0% port· 66K sh· $-4.6M QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$1.2M· 0.8% of total· 0.0% port· 59K sh· — QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$193K· 0.1% of total· 0.0% port· 9K sh· $-45K QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$139K· 0.1% of total· 0.0% port· 7K sh· +$1K QoQ· Q2 2026
1–10 of 20
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