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

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

Report for the Calendar Year or Quarter Ended: 06-30-2013
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: Joella Bloomgren
Title: AVP, Investment Advisor Compliance Officer
Phone: 406-791-7343
Signature, Place, and Date of Signing:
Joella L. Bloomgren Great FallsMT 08-16-2013
[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        
Ashfield Capital Partners LLC        
Aston Asset Management        
Atalanta Sosnoff Management        
C.S. McKee        
Confluence Inv Management LLC        
D. A. Davidson & Co.        
Davidson Investment Advisors        
Davis Investment Advisors        
Eagle Asset Management        
Elessar Investment Management, LLC        
Estabrook Capital Management        
F-Squared AlphaSector        
Granite Investment Partners        
Hays Advisory        
John Hancock Asset Management        
Legg Mason        
Lesa Sroufe & Co.        
McDonnell Investment Mgmt        
Oak Ridge Investments        
Pacific Income Advisors        
Parametric Portfolio Associates        
Placemark        
RNC Genter Capital Management        
Riverbridge Partners, LLC        
Sage Advisory Services, Ltd. Co.        
SeaCap Investment Advisors        
Thornburg Investment Management        
Uniplan Real Estate Advisors        
Victory Capital Management        
Wedgewood Partners, Inc.        
Ziegler Lotsoff Capital Management        
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 32
Form 13F Information Table Entry Total: 3,830
Form 13F Information Table Value Total: 2,071,203
(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        
2 Ashfield Capital Partners LLC        
3 Aston Asset Management        
4 Atalanta Sosnoff Management        
5 C.S. McKee        
6 Confluence Inv Management LLC        
7 D. A. Davidson & Co.        
8 Davidson Investment Advisors        
9 Davis Investment Advisors        
10 Eagle Asset Management        
11 Elessar Investment Management, LLC        
12 Estabrook Capital Management        
13 F-Squared AlphaSector        
14 Granite Investment Partners        
15 Hays Advisory        
16 John Hancock Asset Management        
17 Legg Mason        
18 Lesa Sroufe & Co.        
19 McDonnell Investment Mgmt        
20 Oak Ridge Investments        
21 Pacific Income Advisors        
22 Parametric Portfolio Associates        
23 Placemark        
24 RNC Genter Capital Management        
25 Riverbridge Partners, LLC        
26 Sage Advisory Services, Ltd. Co.        
27 SeaCap Investment Advisors        
28 Thornburg Investment Management        
29 Uniplan Real Estate Advisors        
30 Victory Capital Management        
31 Wedgewood Partners, Inc.        
32 Ziegler Lotsoff Capital Management