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MDU RESOURCES GROUP INC
MDU RESOURCES GROUP INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 311 Institutional holders with a total value of $2,492,993,413.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SIMPLEX TRADING, LLC 17 0 0.00%
2 ENTERPRISE FINANCIAL SERVICES CORP 43 1,000 0.00%
3 FIRST FINANCIAL CORP /IN/ 100 2,000 0.00%
4 Gemmer Asset Management LLC 87 2,000 0.00%
5 Oakworth Capital, Inc. 144 3,000 0.00%
6 SEI INVESTMENTS CO 268 4,000 0.00%
7 WEALTHCARE CAPITAL MANAGEMENT LLC 325 7,000 0.00%
8 LBA Wealth Management, LLC 340 7,000 0.00%
9 Financial Architects, Inc 309 7,000 0.00%
10 Simplicity Solutions, LLC 370 7,889 0.00%
11 WEALTHFRONT CORP 401 9,000 0.00%
12 ZIONS BANCORPORATION 438 9,000 0.00%
13 MOTCO 450 10,000 0.00%
14 CAPITAL GUARDIAN TRUST CO 451 10,000 0.00%
15 Tradewinds Capital Management, LLC 500 11,000 0.00%
16 Crow Point Partners, LLC 500 11,000 0.00%
17 Timber Creek Capital Management LLC 575 12,000 0.00%
18 Vantage Investment Advisors, LLC 556 12,000 0.00%
19 FIRST NATIONAL BANK SIOUX FALLS 541 12,000 0.00%
20 MONROE BANK & TRUST/MI 600 13,000 0.00%
21 Carroll Financial Associates, Inc. 675 14,000 0.00%
22 Walleye Trading LLC 700 15,000 0.00% Put
23 Shinko Asset Management Co., Ltd. 700 15,000 0.00%
24 BENJAMIN F. EDWARDS & COMPANY, INC. 866 18,000 0.00%
25 CENTRAL TRUST Co 901 19,000 0.00%
26 Weaver C. Barksdale & Associates, Inc. 967 21,000 0.00%
27 DELTA ASSET MANAGEMENT LLC/TN 1,000 21,000 0.00%
28 Bartlett & Co. LLC 1,075 23,000 0.00%
29 Stanford Investment Group, Inc. 1,143 24,000 0.00%
30 BRUDERMAN ASSET MANAGEMENT, LLC 1,125 24,000 0.00%
31 HOWE & RUSLING INC 1,170 25,000 0.00%
32 ISTHMUS PARTNERS, LLC 1,223 26,000 0.00%
33 SHARKEY, HOWES & JAVER 1,237 26,000 0.00%
34 Walleye Trading LLC 1,371 29,000 0.00%
35 THOMPSON SIEGEL & WALMSLEY LLC 1,521 32,000 0.00%
36 Aris Wealth Services, Inc. 1,605 34,000 0.00%
37 Mizuho Asset Management Co.,Ltd. 1,796 38,000 0.00%
38 DAVIDSON INVESTMENT ADVISORS 1,990 42,000 0.00%
39 TCI Wealth Advisors, Inc. 2,000 43,000 0.00%
40 Advisory Services Network, LLC 2,025 45,000 0.00%
41 QS Investors, LLC 2,200 47,000 0.00%
42 TOMPKINS FINANCIAL CORP 2,170 47,000 0.00%
43 COMMONWEALTH BANK OF AUSTRALIA 2,200 47,000 0.00%
44 Walleye Trading LLC 2,400 52,000 0.00% Call
45 WHITTIER TRUST CO 3,000 64,000 0.00%
46 BESSEMER GROUP INC 2,995 64,000 0.00%
47 GAM Holding AG 3,115 66,000 0.00%
48 E. Ohman J:or Asset Management AB 3,400 72,556 0.00%
49 VIRTUS CAPITAL ADVISERS, LLC 3,729 80,000 0.00%
50 FineMark National Bank & Trust 3,896 84,000 0.00%
Page 1 of 7

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.