Vault-13

MDU RES GROUP INC MDU

COM · Common Stock · CUSIP 552690109 · ISIN US5526901096

378 institutional holders -2 vs Q2 2023
142,877,334142.9m shares reported held*
70.2% of all shares outstanding*
$2.8bnreported value*
42 new 120 added 141 reduced 42 sold out net sold ≈ $67.2m (-4.0m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($6.0m this quarter). Holder counts are more reliable. Shares outstanding: 203.6m as of 2023-10-26, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $19.65. Options: 8 managers hold calls ($3.9m notional), 6 hold puts ($1.3m).

Trends to Q3 2023

Institutional holders

Managers reporting a position, each quarter

0200400600Q3 22: 377Q4 22: 403Q1 23: 412Q2 23: 380Q3 23: 378378Q3 22Q4 22Q1 23Q2 23Q3 23
Numbers
QuarterHolders
Q3 2022377
Q4 2022403
Q1 2023412
Q2 2023380
Q3 2023378

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q4 22: 160 bought or addedQ4 22: 162 cut or sold outQ4 22Q1 23: 171 bought or addedQ1 23: 170 cut or sold outQ1 23Q2 23: 169 bought or addedQ2 23: 196 cut or sold outQ2 23Q3 23: 162 bought or addedQ3 23: 183 cut or sold outQ3 23
Numbers
QuarterBought or addedCut or sold out
Q4 2022160162
Q1 2023171170
Q2 2023169196
Q3 2023162183

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6mQ4 22 calls: $3.7mQ4 22 puts: $78.3kQ4 22P/C 0.02Q1 23 calls: $2.8mQ1 23 puts: $246.9kQ1 23P/C 0.09Q2 23 calls: $4.6mQ2 23 puts: $499.7kQ2 23P/C 0.11Q3 23 calls: $3.9mQ3 23 puts: $1.3mQ3 23P/C 0.32
Numbers
QuarterCallsPutsP/C
Q4 2022$3.7m$78.3k0.02
Q1 2023$2.8m$246.9k0.09
Q2 2023$4.6m$499.7k0.11
Q3 2023$3.9m$1.3m0.32

Biggest buyers

J. Goldman & Co LP New +1,605,116+1.6m
CITADEL ADVISORS LLC Added +1,562,289+1.6m
FMR LLC Added +1,174,799+1.2m
AQR CAPITAL MANAGEMENT LLC Added +922,403+922.4k
FIRST TRUST ADVISORS LP Added +799,350+799.4k
TWO SIGMA ADVISERS, LP Added +675,400+675.4k
RENAISSANCE TECHNOLOGIES LLC New +527,350+527.4k
SASCO CAPITAL INC / CT/ Added +518,820+518.8k
AMERICAN CENTURY COMPANIES INC Added +483,358+483.4k
Man Group plc New +449,907+449.9k

Biggest sellers

STATE STREET CORP Reduced -8,941,190-8.9m
59 North Capital Management, LP Reduced -1,838,985-1.8m
ProShare Advisors LLC Reduced -1,562,764-1.6m
VANGUARD GROUP INC Reduced -1,097,588-1.1m
ADAGE CAPITAL PARTNERS GP, L.L.C. Sold out -1,050,000-1.1m
Greenland Capital Management LP Reduced -517,829-517.8k
Angeles Investment Advisors, LLC Sold out -441,420-441.4k
Voss Capital, LP Reduced -358,664-358.7k
Stockman Wealth Management, Inc. Sold out -254,138-254.1k
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC Sold out -229,577-229.6k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $1.3m66.6k shares
MILLENNIUM MANAGEMENT LLC New $753.8k38.5k shares
JANE STREET GROUP, LLC Added $741.6k37.8k shares
GROUP ONE TRADING LLC Reduced $493.4k25.2k shares
CITADEL ADVISORS LLC Reduced $426.8k21.8k shares
SIMPLEX TRADING, LLC Reduced $92.0k4.7k shares
Walleye Capital LLC New $80.3k4.1k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

MILLENNIUM MANAGEMENT LLC New $748.0k38.2k shares
CITADEL ADVISORS LLC Added $372.0k19.0k shares
Walleye Capital LLC New $64.6k3.3k shares
GROUP ONE TRADING LLC New $37.2k1.9k shares
SIMPLEX TRADING, LLC Added $33.0k1.7k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BARROW HANLEY MEWHINNEY & STRAUSS LLC 13G · institution -0.4 pts · filed 2026-08-12 6.3% -0.4 pts 13.1m≈ $276.9m 2026-08-12
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 6.1% new 12.6m≈ $266.2m 2026-04-29
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.3% new 10.8m≈ $228.4m 2026-04-30
DIMENSIONAL FUND ADVISORS LP 13G · institution +0.1 pts · filed 2026-10-08 5.1% +0.1 pts 10.7m≈ $226.5m 2026-10-08

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)

Insider purchases and sales in Q3 2023

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q3 2023.

Holders, Q3 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 20,831,42720.8m $407.9m $407.9m 0.01% Reduced -1.1m -1,097,588
2 BlackRock Inc. 0.01% of their portfolio New York, NY 19,180,72319.2m $375.6m $375.6m 0.01% Added +91.3k +91,305
3 Corvex Management LP 11.27% of their portfolio NEW YORK, NY 10,147,04110.1m $198.7m $198.7m 11.27% Unchanged
4 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 5,690,7815.7m $112.1m $112.1m 0.01% Reduced -8.9m -8,941,190
5 DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio AUSTIN, TX 5,322,9925.3m $104.2m $104.2m 0.03% Added +237.3k +237,311
6 FRANKLIN RESOURCES INC 0.04% of their portfolio San Mateo, CA 4,206,3354.2m $82.4m $82.4m 0.04% Reduced -788 -788
7 FMR LLC 0.01% of their portfolio BOSTON, MA 3,585,7073.6m $70.2m $70.2m 0.01% Added +1.2m +1,174,799
8 BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.25% of their portfolio DALLAS, TX 3,404,7313.4m $66.7m $66.7m 0.25% Reduced -37.3k -37,255
9 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 3,276,3623.3m $64.2m $64.2m 0.01% Added +84.9k +84,945
10 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 2,821,8162.8m $55.3m $55.3m 0.01% Reduced -142.5k -142,522
11 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 2,624,2632.6m $51.4m $51.4m 0.01% Added +382.0k +382,002
12 FIRST TRUST ADVISORS LP 0.06% of their portfolio Wheaton, IL 2,517,0462.5m $49.3m $49.3m 0.06% Added +799.4k +799,350
13 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 2,146,4602.1m $42.0m $42.0m 0.04% Added +66.3k +66,324
14 NORGES BANK 0.01% of their portfolio OSLO, Q8 2,085,7762.1m $40.8m $40.8m 0.01% Added +17.3k +17,329
15 FRONTIER CAPITAL MANAGEMENT CO LLC 0.45% of their portfolio Boston, MA 2,074,2412.1m $40.6m $40.6m 0.45% Added +420.5k +420,504
16 River Road Asset Management, LLC 0.55% of their portfolio LOUISVILLE, KY 1,959,0502.0m $38.4m $38.4m 0.55% Reduced -44.8k -44,757
17 CITADEL ADVISORS LLC 0.04% of their portfolio MIAMI, FL 1,904,0001.9m $37.3m $37.3m 0.04% Added +1.6m +1,562,289
18 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 1,863,7751.9m $36.5m $36.5m 0.01% Reduced -24.1k -24,129
19 59 North Capital Management, LP 4.11% of their portfolio Houston, TX 1,812,0041.8m $35.5m $35.5m 4.11% Reduced -1.8m -1,838,985
20 US BANCORP \DE\ 0.06% of their portfolio MINNEAPOLIS, MN 1,729,7041.7m $33.9m $33.9m 0.06% Added +21.0k +20,970
21 J. Goldman & Co LP 1.57% of their portfolio NEW YORK, NY 1,605,1161.6m $31.4m $31.4m 1.57% New
22 SASCO CAPITAL INC / CT/ 3.91% of their portfolio FAIRFIELD, CT 1,548,5411.5m $30.3m $30.3m 3.91% Added +518.8k +518,820
23 OLD REPUBLIC INTERNATIONAL CORP 1.06% of their portfolio CHICAGO, IL 1,445,0001.4m $28.3m $28.3m 1.06% Unchanged
24 Allspring Global Investments Holdings, LLC 0.05% of their portfolio CHARLOTTE, NC 1,422,6211.4m $27.9m $27.9m 0.05% Added +336.5k +336,510
25 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 1,407,4961.4m $27.6m $27.6m 0.01% Reduced -25.1k -25,114
26 AQR CAPITAL MANAGEMENT LLC 0.06% of their portfolio Greenwich, CT 1,397,0951.4m $27.4m $27.4m 0.06% Added +922.4k +922,403
27 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 1,301,5111.3m $25.5m $25.5m 0.01% Added +316.3k +316,264
28 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 1,243,0021.2m $24.3m $24.3m 0.02% Reduced -8.7k -8,704
29 MANAGED ASSET PORTFOLIOS, LLC 3.36% of their portfolio ROCHESTER, MI 1,121,3881.1m $22.0m $22.0m 3.36% Added +299.6k +299,593
30 Mirae Asset Global Investments Co., Ltd. 0.05% of their portfolio SEOUL, M5 1,078,2381.1m $21.1m $21.1m 0.05% Added +92.7k +92,676
31 Ancora Advisors LLC 0.44% of their portfolio Cleveland, OH 831,371831.4k $16.3m $16.3m 0.44% Reduced -21.4k -21,400
32 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 799,471799.5k $15.7m $15.7m 0.00% Added +232.0k +231,956
33 PZENA INVESTMENT MANAGEMENT LLC 0.07% of their portfolio NEW YORK, NY 795,335795.3k $15.6m $15.6m 0.07% Unchanged
34 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 751,066751.1k $14.7m $14.7m 0.01% Reduced -13.5k -13,462
35 TWO SIGMA ADVISERS, LP 0.04% of their portfolio NEW YORK, NY 720,700720.7k $14.1m $14.1m 0.04% Added +675.4k +675,400
36 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 632,911632.9k $12.4m $12.4m 0.01% Reduced -6.3k -6,342
37 TWO SIGMA INVESTMENTS, LP 0.03% of their portfolio NEW YORK, NY 600,801600.8k $11.8m $11.8m 0.03% Added +273.5k +273,545
38 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 577,746577.7k $11.3m $11.3m 0.00% Added +54.2k +54,229
39 Balyasny Asset Management L.P. 0.03% of their portfolio Chicago, IL 560,030560.0k $11.0m $11.0m 0.03% Added +79.1k +79,090
40 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 548,134548.1k $10.7m $10.7m 0.00% Reduced -6.5k -6,517
41 LOOMIS SAYLES & CO L P 0.02% of their portfolio BOSTON, MA 544,188544.2k $10.7m $10.7m 0.02% Added +7.4k +7,407
42 AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio KANSAS CITY, MO 532,361532.4k $10.4m $10.4m 0.01% Added +483.4k +483,358
43 RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio NEW YORK, NY 527,350527.4k $10.3m $10.3m 0.02% New
44 Legal & General Group Plc 0.00% of their portfolio London, X0 503,443503.4k $9.9m $9.9m 0.00% Reduced -6.1k -6,142
45 13D Management LLC 5.78% of their portfolio New York, NY 474,300474.3k $9.3m $9.3m 5.78% Added +205.2k +205,200
46 HRT FINANCIAL LP 0.09% of their portfolio NEW YORK, NY 454,991455.0k $8.9m $8.9m 0.09% Added +277.7k +277,725
47 Man Group plc 0.03% of their portfolio LONDON, X0 449,907449.9k $8.8m $8.8m 0.03% New
48 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 447,612447.6k $8.8m $8.8m 0.00% Reduced -173.5k -173,481
49 LSV ASSET MANAGEMENT 0.02% of their portfolio CHICAGO, IL 445,100445.1k $8.7m $8.7m 0.02% Reduced -14.4k -14,400
50 Squarepoint Ops LLC 0.04% of their portfolio NEW YORK, NY 433,190433.2k $8.5m $8.5m 0.04% Added +411.0k +411,047
51 MACQUARIE GROUP LTD 0.01% of their portfolio Sydney, NSW 2000, C3 430,490430.5k $8.4m $8.4m 0.01% Reduced -6.9k -6,860
52 Swiss National Bank 0.01% of their portfolio ZURICH, V8 425,290425.3k $8.3m $8.3m 0.01% Added +4.1k +4,100
53 JOHN G ULLMAN & ASSOCIATES INC 1.34% of their portfolio CORNING, NY 417,866417.9k $8.2m $8.2m 1.34% Reduced -4.3k -4,300
54 ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio Boston, MA 386,783386.8k $7.6m $7.6m 0.03% Added +383.2k +383,242
55 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 383,414383.4k $7.5m $7.5m 0.01% Added +331.5k +331,519
56 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 370,407370.4k $7.3m $7.3m 0.00% Reduced -19.3k -19,338
57 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 365,826365.8k $7.2m $7.2m 0.01% Added +14.7k +14,657
58 Lighthouse Investment Partners, LLC 0.40% of their portfolio Palm Beach Gardens, FL 347,415347.4k $6.8m $6.8m 0.40% New
59 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 332,641332.6k $6.5m $6.5m 0.01% Added +37.6k +37,551
60 M&T Bank Corp 0.03% of their portfolio BUFFALO, NY 328,637328.6k $6.4m $6.4m 0.03% Added +9.9k +9,926
61 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 320,690320.7k $6.3m $6.3m 0.00% Reduced -37.8k -37,833
62 Bragg Financial Advisors, Inc 0.32% of their portfolio CHARLOTTE, NC 307,831307.8k $6.0m $6.0m 0.32% Added +57.6k +57,571
63 GUGGENHEIM CAPITAL LLC 0.05% of their portfolio CHICAGO, IL 306,987307.0k $6.0m $6.0m 0.05% Added +14.5k +14,478
64 Baird Financial Group, Inc. 0.02% of their portfolio MILWAUKEE, WI 303,197303.2k $5.9m $5.9m 0.02% Added +24.6k +24,593
65 BANK OF NOVA SCOTIA 0.02% of their portfolio TORONTO, A6 291,106291.1k $5.7m $5.7m 0.02% Reduced -159.6k -159,606
66 AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio New York, NY 286,891286.9k $5.6m $5.6m 0.04% Reduced -20.2k -20,245
67 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 284,630284.6k $5.6m $5.6m 0.00% Reduced -9.7k -9,677
68 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 277,534277.5k $5.4m $5.4m 0.00% Added +17.3k +17,338
69 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 269,427269.4k $5.3m $5.3m 0.01% Added +179.9k +179,938
70 CAPTRUST FINANCIAL ADVISORS 0.02% of their portfolio RALEIGH, NC 260,421260.4k $5.1m $5.1m 0.02% Reduced -6.9k -6,854
71 Retirement Systems of Alabama 0.02% of their portfolio MONTGOMERY, AL 254,263254.3k $5.0m $5.0m 0.02% Reduced -8.2k -8,165
72 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio ALBANY, NY 246,022246.0k $4.8m $4.8m 0.01% Reduced -2.0k -2,000
73 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 217,699217.7k $4.3m $4.3m 0.01% Reduced -22.0k -21,951
74 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio TALLAHASSEE, FL 216,038216.0k $4.2m $4.2m 0.01% Reduced -44.5k -44,508
75 SG Americas Securities, LLC 0.06% of their portfolio NEW YORK, NY 212,993213.0k $4.2m $4.2m 0.06% Added +162.0k +162,019
76 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 203,176203.2k $4.0m $4.0m 0.00% Reduced -48.8k -48,794
77 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 201,648201.6k $3.9m $3.9m 0.00% Added +22.7k +22,682
78 RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio ST PETERSBURG, FL 199,983200.0k $3.9m $3.9m 0.00% Reduced -42.9k -42,887
79 HENNESSY ADVISORS INC 0.26% of their portfolio NOVATO, CA 190,707190.7k $3.7m $3.7m 0.26% Reduced -300 -300
80 FIRST MANHATTAN CO. LLC. 0.01% of their portfolio NEW YORK, NY 189,134189.1k $3.7m $3.7m 0.01% Reduced -3.0k -3,000
81 ALGERT GLOBAL LLC 0.17% of their portfolio SAN FRANCISCO, CA 186,856186.9k $3.7m $3.7m 0.17% Added +8.6k +8,585
82 UBS Group AG 0.00% of their portfolio ZURICH, V8 180,240180.2k $3.5m $3.5m 0.00% Added +86.8k +86,794
83 TEXAS PERMANENT SCHOOL FUND CORP 0.03% of their portfolio AUSTIN, TX 172,947172.9k $3.4m $3.4m 0.03% Reduced -6.4k -6,353
84 KENNEDY CAPITAL MANAGEMENT LLC 0.08% of their portfolio ST LOUIS, MO 164,459164.5k $3.2m $3.2m 0.08% Reduced -4.5k -4,524
85 Hudson Value Partners, LLC 1.69% of their portfolio PALM BEACH, FL 164,244164.2k $3.2m $3.2m 1.69% Added +63.8k +63,788
86 Redwood Investment Management, LLC 0.28% of their portfolio SCOTTSDALE, AZ 163,619163.6k $3.2m $3.2m 0.28% Reduced -30.4k -30,430
87 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 158,703158.7k $3.1m $3.1m 0.00% Reduced -17.9k -17,927
88 Boussard & Gavaudan Investment Management LLP 0.36% of their portfolio London, X0 156,459156.5k $3.1m $3.1m 0.36% Reduced -98.4k -98,441
89 Cladis Investment Advisory, LLC 1.42% of their portfolio BILLINGS, MT 155,092155.1k $3.0m $3.0m 1.42% Reduced -3.2k -3,196
90 COMERICA BANK 0.02% of their portfolio DALLAS, TX 152,439152.4k $3.0m $3.0m 0.02% New
91 AGF MANAGEMENT LTD 0.02% of their portfolio TORONTO, A6 151,155151.2k $3.0m $3.0m 0.02% Added +33.7k +33,747
92 COMMONWEALTH EQUITY SERVICES, LLC 0.01% of their portfolio WALTHAM, MA 140,517140.5k $2.8m $2.8m 0.01% Added +3.2k +3,223
93 AMALGAMATED BANK 0.02% of their portfolio NEW YORK, NY 140,302140.3k $2.7m $2.7m 0.02% Added +7.6k +7,577
94 GABELLI FUNDS LLC 0.02% of their portfolio Rye, NY 139,500139.5k $2.7m $2.7m 0.02% Unchanged
95 Simplicity Solutions, LLC 0.09% of their portfolio MINNEAPOLIS, MN 138,088138.1k $2.7m $2.7m 0.09% Added +39.2k +39,189
96 Bleakley Financial Group, LLC 0.10% of their portfolio PARSIPPANY, NJ 138,088138.1k $2.7m $2.7m 0.10% Added +39.1k +39,087
97 Cubist Systematic Strategies, LLC 0.03% of their portfolio STAMFORD, CT 137,395137.4k $2.7m $2.7m 0.03% New
98 Keeley-Teton Advisors, LLC 0.38% of their portfolio Chicago, IL 137,010137.0k $2.7m $2.7m 0.38% Reduced -2.4k -2,439
99 CANADA LIFE ASSURANCE Co 0.01% of their portfolio WINNIPEG, A2 135,454135.5k $2.7m $2.7m 0.01% Added +1.8k +1,753
100 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio New York, NY 132,381132.4k $2.6m $2.6m 0.03% Reduced -15.6k -15,592