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: 12-31-2015
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: D.A. DAVIDSON & CO.
Address: 8 THIRD ST NORTH
GREAT FALLS, MT  59401
Form 13F File Number: 028-07602

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: SVP, Director of Managed Assets
Phone: 206-389-4075
Signature, Place, and Date of Signing:
Joely Meighan SeattleWA 02-11-2016
[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.]
Form 13F File Number Name
028-05119 Alta Capital Management
  Ashfield Capital Partners LLC
  Atalanta Sosnoff Management
  C.S. McKee
  Confluence Investment Management LLC
  Contravisory
  D.A. Davidson & Co.
028-10301 Davidson Investment Advisors
  Davis Investment Advisors
028-01666 Eagle Asset Management
  Efficient Market Advisors
  Emerald Advisers Inc.
028-01283 Estabrook Capital Management
  Fairpointe Capital
  Granite Investment Partners
  Hahn
  Harding Loevner
028-10649 Hays Advisory
028-03955 John Hancock Asset Management
  Legg Mason
  Lesa Sroufe & Co.
  Marshfield Associates, Inc.
  McDonnell Investment Mgmt
  Miller, Tabak & Co. LLC
028-06668 Oak Ridge Investments
  Ocean Park
  Pacific Income Advisors
  Parametric Portfolio Associates
  Placemark
028-00970 RNC Genter Capital Management
  Reinhart Partners, Inc.
  Riverbridge Partners, Inc.
  SFE Investment Counsel
  SIGMA
  Sage Advisory Services, Ltd. Co.
  SeaCap Investment Advisors
  Sterling Capital
028-06605 Thornburg Investment Management
  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: 43
Form 13F Information Table Entry Total: 745
Form 13F Information Table Value Total: 601,111,000
(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
1 028-05119 Alta Capital Management
2   Ashfield Capital Partners LLC
3   Atalanta Sosnoff Management
4   C.S. McKee
5   Confluence Investment Management LLC
6   Contravisory
7   D.A. Davidson & Co.
8 028-10301 Davidson Investment Advisors
9   Davis Investment Advisors
10 028-01666 Eagle Asset Management
11   Efficient Market Advisors
12   Emerald Advisers Inc.
13 028-01283 Estabrook Capital Management
14   Fairpointe Capital
15   Granite Investment Partners
16   Hahn
17   Harding Loevner
18 028-10649 Hays Advisory
19 028-03955 John Hancock Asset Management
20   Legg Mason
21   Lesa Sroufe & Co.
22   Marshfield Associates Inc.
23   McDonnell Investment Management
24   Miller, Tabak & Co. LLC
25 028-06668 Oak Ridge Investments
26   Ocean Park
27   Pacific Income Advisors
28   Parametric Portfolio Associates
29   Placemark
30 028-00970 RNC Genter Capital Management
31   Reinhart Partners, Inc.
32   Riverbridge Partners, Inc.
33   SFE Investment Counsel
34   SIGMA
35   Sage Advisory Services, Ltd. Co.
36   SeaCap Investment Advisors
37   Sterling Capital
38 028-06605 Thornburg Investment Management
39   Todd Investment Advisors
40   Uniplan Real Estate Advisors
41   Victory Capital Management
42   Wasatch Advisors
43   Wedgewood Partners, Inc.