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

Institutional Holders (2015Q4)
Portfolio Summary: 289 Institutional holders with a total value of $2,215,959,682.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PARNASSUS INVESTMENTS, LLC 14,181,493 259,805,000 11.72%
2 STATE STREET CORP 13,969,067 255,917,000 11.55%
3 VANGUARD GROUP INC 13,816,559 253,119,000 11.42%
4 BlackRock Fund Advisors 6,373,016 116,754,000 5.27%
5 BlackRock Institutional Trust Company, N.A. 5,662,388 103,735,000 4.68%
6 SPRUCEGROVE INVESTMENT MANAGEMENT LTD 5,640,035 103,325,000 4.66%
7 FRANKLIN RESOURCES INC 3,621,683 66,350,000 2.99%
8 Bank of New York Mellon Corp 3,391,347 62,129,000 2.80%
9 STRS OHIO 2,643,000 48,419,000 2.19%
10 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 2,248,963 41,200,000 1.86%
11 US BANCORP \DE\ 2,109,024 38,637,000 1.74%
12 MAIRS & POWER INC 1,868,878 34,238,000 1.55%
13 NORGES BANK 1,838,016 33,673,000 1.52%
14 NORTHERN TRUST CORP 1,489,365 27,285,000 1.23%
15 PGGM Investments 1,399,103 25,632,000 1.16%
16 HEARTLAND ADVISORS INC 1,385,731 25,387,000 1.15%
17 GOLDMAN SACHS GROUP INC 1,326,791 24,306,000 1.10%
18 HERMES INVESTMENT MANAGEMENT LTD 1,223,594 22,416,000 1.01%
19 Invesco Ltd. 1,203,192 22,042,000 0.99%
20 GEODE CAPITAL MANAGEMENT, LLC 1,183,684 21,685,000 0.98%
21 FIRST TRUST ADVISORS LP 1,133,410 20,764,000 0.94%
22 FRONTIER CAPITAL MANAGEMENT CO LLC 1,131,206 20,724,000 0.94%
23 OLD REPUBLIC INTERNATIONAL CORP 1,120,500 20,528,000 0.93%
24 AXA S.A. 926,700 16,977,000 0.77%
25 Legal & General Group Plc 792,027 14,512,000 0.65%
26 PRUDENTIAL FINANCIAL INC 752,992 13,795,000 0.62%
27 WELLS FARGO & COMPANY/MN 752,996 13,795,000 0.62%
28 BALYASNY ASSET MANAGEMENT L.P. 739,269 13,543,000 0.61%
29 DIMENSIONAL FUND ADVISORS LP 730,192 13,378,000 0.60%
30 TIAA CREF INVESTMENT MANAGEMENT LLC 727,583 13,329,000 0.60%
31 MILLER HOWARD INVESTMENTS INC /NY 705,577 12,926,000 0.58%
32 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 675,188 12,370,000 0.56%
33 BlackRock Investment Management, LLC 672,735 12,325,000 0.56%
34 PRINCIPAL FINANCIAL GROUP INC 622,477 11,403,000 0.51%
35 NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC 599,652 10,986,000 0.50%
36 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 599,616 10,985,000 0.50%
37 HENNESSY ADVISORS INC 599,407 10,981,000 0.50%
38 BlackRock Group LTD 574,776 10,530,000 0.48%
39 ArrowMark Colorado Holdings LLC 528,198 9,677,000 0.44%
40 DEUTSCHE BANK AG\ 524,772 9,612,000 0.43%
41 AMERIPRISE FINANCIAL INC 501,730 9,196,000 0.41%
42 BANK OF AMERICA CORP /DE/ 486,610 8,915,000 0.40%
43 VIKING FUND MANAGEMENT LLC 470,000 8,610,000 0.39%
44 NEW YORK STATE COMMON RETIREMENT FUND 463,395 8,489,000 0.38%
45 PARAMETRIC PORTFOLIO ASSOCIATES LLC 408,892 7,491,000 0.34%
46 CONFLUENCE INVESTMENT MANAGEMENT LLC 404,036 7,402,000 0.33%
47 AMERICAN INTERNATIONAL GROUP, INC. 400,012 7,327,000 0.33%
48 RUSSELL FRANK CO/ 385,613 7,142,000 0.32%
49 M&T BANK CORP 375,608 6,882,000 0.31%
50 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 372,386 6,822,000 0.31%
Page 1 of 6

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.