SEC FORM 13F-HR

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

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Report for the Calendar Year or Quarter Ended: 03-31-2016
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: D.A. DAVIDSON & CO.
Address: 8 THIRD ST NORTH
GREAT FALLS, MT  59401
Form 13F File Number: 028-07602
CRD Number (if applicable):
SEC File Number (if applicable):

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: Joely Meighan
Title: Senior Vice President, Director of Managed Assets
Phone: 206-389-4075
Signature, Place, and Date of Signing:
Joely Meighan SeattleWA 05-13-2016
[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.]
Name Form 13F File No. CRD No. (if applicable) SEC File No. (if applicable) CIK
Alta Capital Management 028-05119      
Anchor Capital Advisors        
Ashfield Capital Partners LLC        
Atalanta Sosnoff Management        
C.S. McKee        
Confluence Investment Management LLC        
Contravisory        
D.A. Davidson & Co.        
Davidson Investment Advisors, Inc. 028-10301      
Davis Investment Advisors        
Eagle Asset Management 028-01666      
Efficient Market Advisors        
Emerald Advisers Inc.        
Estabrook Capital Management 028-01283      
Fairpointe Capital        
Granite Investment Partners        
Hahn        
Harding Loevner        
Hays Advisory 028-10649      
John Hancock Asset Management 028-03955      
Lazard Asset Management        
Legg Mason        
Legg Mason Private Portfolio Group LLC        
Lesa Sroufe & Co.        
Lockwood Asset Allocation Portfolio        
Lockwood Investment Strategies        
Marshfield Associates Inc.        
McDonnell Investment Mgmt        
Miller, Tabak & Co. LLC        
NYLIM- Mackay Shields LLC        
Oak Ridge Investments 028-06668      
Ocean Park        
PMC        
Pacific Income Advisors        
Parametric Portfolio Associates        
Placemark        
RNC Genter Capital Management 028-00970      
Reinhart Partners, Inc.        
Riverbridge Partners, Inc.        
SFE Investment Counsel        
SIGMA        
Sage Advisory Services, Ltc. Co.        
SeaCap Investment Advisors        
Sterling Capital        
Thornburg Investment Management 028-06605      
Todd Investment Advisors        
Trillium Asset Management        
Uniplan Real Estate Advisors        
Victory Capital Management        
WHV Investment Management        
Wasatch Advisors        
Wedgewood Partners, Inc.        
iSectors Post        
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 53
Form 13F Information Table Entry Total: 14,785
Form 13F Information Table Value Total: 3,211,030,000
(round to nearest dollar)
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. Name Form 13F File No. CRD No. (if applicable) SEC File No. (if applicable) CIK
1 Alta Capital Management 028-05119      
2 Anchor Capital Advisors        
3 Ashfield Capital Partners LLC        
4 Atalanta Sosnoff Management        
5 C.S. McKee        
6 Confluence Investment Management LLC        
7 Contravisory        
8 D.A. Davidson & Co.        
9 Davidson Investment Advisors 028-10301      
10 Davis Investment Advisors        
11 Eagle Asset Management 028-01666      
12 Efficient Market Advisors        
13 Emerald Advisers Inc        
14 Estabrook Capital Management 028-01283      
15 Fairpointe Capital        
16 Granite Investment Partners        
17 Hahn        
18 Harding Loevner        
19 Hays Advisory 028-10649      
20 John Hancock Asset Management 028-03955      
21 Lazard Asset Management        
22 Legg Mason        
23 Legg Mason Private Portfolio Group, LLC        
24 Lesa Sroufe & Co.        
25 Lockwood Asset Allocation Portfolio        
26 Lockwood Investment Strategies        
27 Marshfield Associates Inc        
28 McDonnell Investment Mgmt        
29 Miller, Tabak & Co. LLC        
30 NYLIM - Mackay Shields LLC        
31 Oak Ridge Investments 028-06668      
32 Ocean Park        
33 PMC        
34 Pacific Income Advisors        
35 Parametric Portfolio Associates        
36 Placemark        
37 RNC Genter Capital Management 028-00970      
38 Reinhart Partners, Inc.        
39 Riverbridge Partners, LLC        
40 SFE Investment Counsel        
41 SIGMA        
42 Sage Advisory Services, Ltd. Co.        
43 SeaCap Investment Advisors        
44 Sterling Capital        
45 Thornburg Investment Management 028-06605      
46 Todd Investment Advisors        
47 Trillium Asset Management        
48 Uniplan Real Estate Advisors        
49 Victory Capital Management        
50 WHV Investment Management        
51 Wasatch Advisors        
52 Wedgewood Partners, Inc.        
53 iSectors Post