DOSSIER · 13F Holders · Q1 2026
MDU

MDU RES GROUP INC

447 institutions still hold MDU RES GROUP INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 552690109·447 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$2.7B
visible holders
Holders
447
filers reporting
Concentration
19.76%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

447 institutions reported MDU in Q1 2026. BlackRock, Inc. leads at 19.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$533M25.7M0.01%Q1 2026
02
BARROW HANLEY MEWHINNEY & STRAUSS LLC
CIK 0000313028
$285M13.8M0.93%Q1 2026
03
Vanguard Portfolio Management
CIK 0002100121· Index
$260M12.5M0.01%Q1 2026
04
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$213M10.3M0.04%Q1 2026
05
EARNEST PARTNERS LLC
CIK 0001102578
$205M9.9M0.84%Q1 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$190M9.1M0.00%Q1 2026
07
STATE STREET CORP
CIK 0000093751
$146M7.0M0.01%Q1 2026
08
BANK OF AMERICA CORP /DE/
CIK 0000070858
$129M6.2M0.01%Q1 2026
09
SEI INVESTMENTS CO
CIK 0000350894
$109M5.3M0.10%Q1 2026
10
MORGAN STANLEY
CIK 0000895421
$87M4.2M0.01%Q1 2026
11
WESTWOOD HOLDINGS GROUP INC
CIK 0001165002
$73M3.5M0.53%Q1 2026
12
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$72M3.5M0.00%Q1 2026
13
River Road Asset Management, LLC
CIK 0001341401
$72M3.4M0.80%Q2 2026
14
Delaware Management Holdings, Inc.
CIK 0000921739
$54M2.6M0.09%Q1 2026
15
FRONTIER CAPITAL MANAGEMENT CO LLC
CIK 0000351173
$52M2.5M0.53%Q1 2026
16
Bank of New York Mellon Corp
CIK 0001390777
$49M2.4M0.01%Q1 2026
17
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$47M2.3M0.01%Q1 2026
18
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$45M2.2M0.03%Q1 2026
19
Invesco Ltd.
CIK 0000914208
$39M1.9M0.00%Q1 2026
20
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$37M1.8M0.05%Q1 2026
Page 1 of 23
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Insiders at MDU RES GROUP INC
Dosch Vernon A.Durkin Marian MJones Anne MJohnson Rob L.Kivisto Nicole ASenger GarretSievert Stephanie AVollmer Jason L