NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
BlackRock, Inc.8,613,648$555,925
VANGUARD GROUP INC6,667,340$430,310
STATE STREET CORP2,637,718$170,238
AMERICAN CENTURY COMPANIES INC2,039,629$131,638
GEODE CAPITAL MANAGEMENT, LLC1,628,750$105,141
FRANKLIN RESOURCES INC1,436,750$92,728
River Road Asset Management, LLC1,263,967$81,576
NEUBERGER BERMAN GROUP LLC1,259,921$81,324
SYSTEMATIC FINANCIAL MANAGEMENT LP1,159,753$74,851
FMR LLC1,124,935$72,603
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.1,025,302$66,173
DIMENSIONAL FUND ADVISORS LP1,017,415$65,664
BALYASNY ASSET MANAGEMENT L.P.1,005,886$64,920
MILLENNIUM MANAGEMENT LLC920,554$59,413
MORGAN STANLEY846,080$54,606
ADAGE CAPITAL PARTNERS GP, L.L.C.812,500$52,439
CHARLES SCHWAB INVESTMENT MANAGEMENT INC807,138$52,093
WESTWOOD HOLDINGS GROUP INC787,257$50,810
NORGES BANK778,958$50,274
ALLIANCEBERNSTEIN L.P.776,126$50,091
Bank of New York Mellon Corp774,920$50,013
AQR CAPITAL MANAGEMENT LLC769,640$49,673
BANK OF AMERICA CORP /DE/766,720$49,484
NORTHERN TRUST CORP764,406$49,335
UBS Group AG707,822$45,683
GOLDMAN SACHS GROUP INC657,233$42,418
FIRST TRUST ADVISORS LP650,323$41,972
ProShare Advisors LLC645,335$41,650
AQR Arbitrage LLC607,028$39,178
GW&K Investment Management, LLC593,888$38
Invesco Ltd.584,723$37,738
MASSACHUSETTS FINANCIAL SERVICES CO /MA/569,334$36,745
GABELLI FUNDS LLC548,700$35,413
FULLER & THALER ASSET MANAGEMENT, INC.503,220$32,478
Nuveen, LLC502,742$32,447
Hudson Bay Capital Management LP499,509$32,238
Thrivent Financial for Lutherans489,871$32
Grantham, Mayo, Van Otterloo & Co. LLC483,291$31,192
CITIGROUP INC482,614$31,148
RAYMOND JAMES FINANCIAL INC445,575$28,757
VICTORY CAPITAL MANAGEMENT INC417,006$26,914
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC413,328$26,676
Qube Research & Technologies Ltd388,665$25,084
JANE STREET GROUP, LLC348,670$22,503
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.320,156$20,663
Legal & General Group Plc294,648$19,017
MetLife Investment Management, LLC288,621$18,628
CITADEL ADVISORS LLC288,102$18,594
GAMCO INVESTORS, INC. ET AL274,350$17,707
JPMORGAN CHASE & CO243,635$15,724
UBS ASSET MANAGEMENT AMERICAS INC236,301$15,251
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC225,467$14,552
Squarepoint Ops LLC220,364$14,222
DEUTSCHE BANK AG\210,218$13,567
Magnetar Financial LLC197,657$12,757
Brandywine Global Investment Management, LLC196,038$12,652
RHUMBLINE ADVISERS193,573$12,493
NEW YORK LIFE INVESTMENT MANAGEMENT LLC137,843$8,896
BARCLAYS PLC133,107$8,591
PRINCIPAL FINANCIAL GROUP INC133,030$8,586
CANADA PENSION PLAN INVESTMENT BOARD132,400$8,545
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS132,201$8,532
Kintayl Capital LP130,127$8,398
Ancora Advisors LLC129,405$8,352
Bridgewater Associates, LP123,781$7,989
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC122,803$7,926
Swiss National Bank121,083$7,815
Russell Investments Group, Ltd.117,812$7,604
AMERIPRISE FINANCIAL INC117,261$7,568
First PREMIER Bank104,567$7
South Dakota Investment Council102,711$7
Yaupon Capital Management LP100,624$6,494
WELLS FARGO & COMPANY/MN91,621$5,913
SUSQUEHANNA INTERNATIONAL GROUP, LLP86,992$5,614
FIRST MANHATTAN CO. LLC.85,765$5,535
MERITAGE PORTFOLIO MANAGEMENT85,370$5,510
GREAT WEST LIFE ASSURANCE CO /CAN/83,253$5
MAIRS & POWER INC81,682$5,272
Advisors Asset Management, Inc.81,271$5,245
Oliver Luxxe Assets LLC79,226$5,113
CONNING INC.77,076$4,974
IEQ CAPITAL, LLC76,430$4,933
COMERICA BANK76,365$4,929
NEW YORK STATE TEACHERS RETIREMENT SYSTEM74,445$5
WEDGE CAPITAL MANAGEMENT L L P/NC74,026$4,778
Retirement Systems of Alabama73,698$4,756
Public Sector Pension Investment Board70,176$4,529
HEARTLAND ADVISORS INC69,627$4,494
COMMONWEALTH EQUITY SERVICES, LLC67,634$4,365
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM60,825$3,926
DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC60,395$4
Point72 Asset Management, L.P.59,406$3,834
JANUS HENDERSON GROUP PLC58,904$3,802
PRICE T ROWE ASSOCIATES INC /MD/58,684$4
Maryland State Retirement & Pension System57,615$3,718
Cerity Partners LLC57,399$3,705
Mathes Company, Inc.54,655$4
MOORE CAPITAL MANAGEMENT, LP53,470$3,451
Magellan Asset Management Ltd52,410$3,383
North Star Investment Management Corp.50,998$3,291
256 other institutions2,569,343$144,767
Total (356 institutions)59,780,836$3,732,620