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: 03-31-2021
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: OPPENHEIMER ASSET MANAGEMENT INC.
Address: 85 BROAD ST.
NEW YORK, NY  10004
Form 13F File Number: 028-10748

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: Deborah Kaback
Title: Managing Director
Phone: 212-667-4395
Signature, Place, and Date of Signing:
/s/ Deborah Kaback New YorkNY 05-17-2021
[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
028-10451 ALKEON CAPITAL MANAGEMENT LLC
Form 13F Summary Page
Report Summary:
Number of Other Included Managers: 68
Form 13F Information Table Entry Total: 3,712
Form 13F Information Table Value Total: 6,452,666
(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   ACR Alpine Capital Research
2   Alger
3   Ancora Advisors
4   Apex Capital
5   Atalanta Sosnoff Capital
7   Atlanta Capital Management
8   Bahl & Gaynor
10   Brandes Investment Partners
11   Cambiar Investors
12   Causeway Capital Management
14   Chautauqua Capital Management
15   Churchill Management Group
16   ClearBridge Advisors
17   Clarkston Caplital Partners
18   Campbell Newman Asset Mgmt
19   Confluence Investment Mgmt
20   Cohen And Steers
21   Columbia Management
22   Congress Asset Management
23   Cove Street Capital
24   Cramer Rosenthal McGlynn
25   Davis Advisors
26   Delaware Capital Management
27   DeRoy & Deveraux
28   Dearborn Partners
29   Earnest Partners
30   Eaton Vance
31   Epoch Investment
34   Good Harbor Financial
36   GW&K Investment Management
38   Harding Loevner Managed Accts
39   Invesco Advisors
40   The Ithaka Group
41   Jennison Associates
42   Lyrical Asset Management
43   MacKay Shields
44   Madison Investment Advisors
46   MetWest Capital Management
47   Miller Howard
48   Montag & Caldwell
51   Oak Ridge Investments
54   Penn Capital
55   Poplar Forest Capital
56   Reinhart Partners
57   Riverbridge Partners
58   RNC Genter Capital Mgmt
59   Roosevelt Investment Group
60   Sage Advisory Services
61   Salient Capital Advisors
62   SaratogaRIM
63   Schafer Cullen Capital Mgmt
64   Seaview Global Advisors
65   Security Capital
67   Stephens Inv Mgt
70   SouthernSun Asset Mgmt
71   Thornburg Investment Management
72   Torray
73   12th Street Asset Mgmt
74   Wasatch Advisors
77   Anchor Capital
78   Amundi Pioneer
81   DF Dent
83   Federated
85   Lateef Investment
92   Polen Capital
95   SGA
97   Spyglass
104   Putnam Investment