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: 06-30-2015
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: DAVIDSON D A & 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 08-13-2015
[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      
Ashfield Capital Partners LLC        
Atalanta Sosnoff Management        
C.S. McKee        
Confluence Inv Management LLC        
Contravisory        
D.A. Davidson & Co.        
Davidson Investment Advisors 028-10301      
Davis Investment Advisors        
Eagle Asset Management 028-01666      
Efficient Market Advisors        
Elessar Investment Management LLC        
Estabrook Capital Management 028-01283      
Fairpointe Capital        
Granite Investment Partners        
Hahn        
Harding Loevner        
Hays Advisory 028-10649      
John Hancock Asset Management 028-03955      
Legg Mason        
Lesa Sroufe & Co.        
Marshfield Associates Inc.        
McDonnell Investment Mgmt        
Miller, Tabak & Co. LLC        
Nuveen        
Oak Ridge Investments 028-06668      
Ocean Park        
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, Ltd. Co.        
SeaCap Investment Advisors        
Sovereign        
Sterling Capital        
Thornburg Investment Management 028-06605      
Todd Investment Advisors        
Uniplan Real Estate Advisors        
Victory Capital Management        
Wasatch Advisors        
Wedgewood Partners, Inc.        
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 45
Form 13F Information Table Entry Total: 4,655
Form 13F Information Table Value Total: 3,042,969,000
(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 Ashfield Capital Partners LLC        
3 Atalanta Sosnoff Management        
4 C.S. McKee        
5 Confluence Inv Management LLC        
6 Contravisory        
7 D.A. Davidson & Co.        
8 Davidson Investment Advisors 028-10301      
9 Davis Investment Advisors        
10 Eagle Asset Management 028-01666      
11 Efficient Market Advisors        
12 Elessar Investment Management, LLC        
13 Estabrook Capital Management 028-01283      
14 Fairpointe Capital        
15 Granite Investment Partners        
16 Hahn        
17 Harding Loevner        
18 Hays Advisory 028-10649      
19 John Hancock Asset Management 028-03955      
20 Legg Mason        
21 Lesa Sroufe & Co.        
22 Marshfield Associates Inc.        
23 McDonnell Investment Mgmt        
24 Miller, Tabak & Co. LLC        
25 Nuveen        
26 Oak Ridge Investments 028-06668      
27 Ocean Park        
28 Pacific Income Advisors        
29 Parametric Portfolio Associates        
30 Placemark        
31 RNC Genter Capital Management 028-00970      
32 Reinhart Partners, Inc.        
33 Riverbridge Partners, LLC        
34 SFE Investment Counsel        
35 SIGMA        
36 Sage Advisory Services, Ltd. Co.        
37 SeaCap Investment Advisors        
38 Sovereign        
39 Sterling Capital        
40 Thornburg Investment Management 028-06605      
41 Todd Investment Advisors        
42 Uniplan Real Estate Advisors        
43 Victory Capital Management        
44 Wasatch Advisors        
45 Wedgewood Partners, Inc.