The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F COVER PAGE

OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8

Report for the Calendar Year or Quarter Ended: 03-31-2018
Check here if Amendment    Amendment Number:
This Amendment (Check only one.):    is a restatement.
   adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Dorsey & Whitney Trust CO LLC
Address: 401 EAST EIGHTH STREET, SUITE 319
SIOUX FALLS, SD  57103
Form 13F File Number: 028-12732

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:
Name: CARL SCHMIDTMAN
Title: PRESIDENT
Phone: 605-336-6832
Signature, Place, and Date of Signing:
CARL SCHMIDTMAN SIOUX FALLSSD 05-08-2018
[Signature] [City, State] [Date]
Report Type (Check only one.):
   13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)
   13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)
X 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)
List of Other Managers Reporting for this Manager:
[If there are no entries in this list, omit this section.]
Form 13F File Number Name
028-07342 MAIRS AND POWER, INC.
028-01911 BAIRD ROBERT W & CO INC
028-03663 CIBC ASSET MANAGEMENT
028-13573 NEUBERGER BERMAN GROUP LLC
028-04879 REINHART PARTNERS, INC.
028-01707 BAILARD, INC.
028-10562 ALLIANCEBERNSTEIN L.P.
028-13935 MORGAN STANLEY SMITH BARNEY LLC
028-07602 DAVIDSON DA & CO
028-03143 FOLGER NOLAN FLEMING DOUGLAS CAPITAL
028-10663 HAMLIN CAPITAL MANAGEMENT, LLC
028-05434 SCHWARTZ INVESTMENT COUNCEL INC
028-14575 CORNERSTONE ADVISORS, INC.
028-11351 CORTINA ASSET MANAGEMENT, LLC
028-10981 GOLDMAN SACHS ASSET MANAGEMENT
028-03434 CONGRESS ASSET MANAGEMENT CO
028-11873 MORGAN STANLEY & CO. LLC
028-14152 MERISTEM, LLP
028-04069 RBC CAPITAL MARKETS, LLC
028-12988 FIRST WASHINGTON
028-11925 JP MORGAN SECURITIES PLC
028-01398 CAMBIAR INVESTORS LLC
028-04558 PARAMETIC PORTFOLIO ASSOCIATES LLC
028-18042 JOHNSON FINANCIAL GROUP, LLC
028-03125 TRILLIUM ASSET MANAGEMENT, LLC
028-11964 APERIO GROUP, LLC
028-00551 US BANCORP
028-01887 GAMCO INVESTORS, INC. ET AL
028-04434 HARDING LOEVNER LP
028-16612 UBS Group AG
028-16385 NORTHSIDE CAPITAL MANAGEMENT, LLC
028-07104 WCM INVESTMENT MANAGEMENT/CA
028-00400 DODGE & COX
028-02825 BAHL & GAYNOR INC
028-03692 MILLER HOWARD INVESTMENTS INC /NY
028-13117 WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC
028-11465 STERLING CAPITAL MANAGEMENT LLC
028-18349 DIMEO SCHNEIDER & ASSOCIATES, L.L.C.
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 38
Form 13F Information Table Entry Total: 1,672
Form 13F Information Table Value Total: 543,546
(thousands)
List of Other Included Managers:
Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]
No. Form 13F File Number Name
2 028-01911 BAIRD ROBERT W & CO INC
1 028-07342 MAIRS AND POWER, INC.
3 028-13573 NEUBERGER BERMAN GROUP LLC
4 028-03663 CIBC ASSET MANAGEMENT
5 028-04879 REINHART PARTNERS, INC.
6 028-10562 ALLIANCEBERNSTEIN L.P.
8 028-13935 MORGAN STANLEY SMITH BARNEY LLC
7 028-01707 BAILARD, INC.
9 028-03143 FOLGER NOLAN FLEMING DOUGLAS CAPITAL
10 028-07602 DAVIDSON DA & CO
11 028-10663 HAMLIN CAPITAL MANAGEMENT, LLC
12 028-14575 CORNERSTONE ADVISORS, INC.
14 028-11351 CORTINA ASSET MANAGEMENT, LLC
13 028-05434 SCHWARTZ INVESTMENT COUNCEL INC
15 028-03434 CONGRESS ASSET MANAGEMENT CO
16 028-10981 GOLDMAN SACHS ASSET MANAGEMENT
17 028-11873 MORGAN STANLEY & CO. LLC
18 028-04069 RBC CAPITAL MARKETS, LLC
20 028-12988 FIRST WASHINGTON
19 028-14152 MERISTEM, LLP
21 028-01398 CAMBIAR INVESTORS LLC
22 028-11925 JP MORGAN SECURITIES PLC
23 028-04558 PARAMETIC PORTFOLIO ASSOCIATES LLC
24 028-03125 TRILLIUM ASSET MANAGEMENT, LLC
26 028-11964 APERIO GROUP, LLC
25 028-18042 JOHNSON FINANCIAL GROUP, LLC
27 028-01887 GAMCO INVESTORS, INC. ET AL
28 028-00551 US BANCORP
29 028-04434 HARDING LOEVNER LP
30 028-16385 NORTHSIDE CAPITAL MANAGEMENT, LLC
32 028-07104 WCM INVESTMENT MANAGEMENT/CA
31 028-16612 UBS Group AG
33 028-02825 BAHL & GAYNOR INC
34 028-00400 DODGE & COX
35 028-03692 MILLER HOWARD INVESTMENTS INC /NY
36 028-11465 STERLING CAPITAL MANAGEMENT LLC
38 028-18349 DIMEO SCHNEIDER & ASSOCIATES, L.L.C.
37 028-13117 WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC