UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 13F
                               Form 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: 12/31/2009
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:      Credit Suisse Asset Management LLC

Address:   11 Madison Avenue
           New York, New York 10010


Form 13F File Number: 28-03702


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.

Persons Signing this Report on Behalf of Reporting Manager:

Name:   Emidio Morizio
Title:  Authorized Signatory
Phone:  (212) 325-2000

Signature,  Place,  and  Date  of  Signing:

/s/ Emidio Morizio                 New York, New York                 2/16/2010
- ---------------------------------  ---------------------------------  ----------
[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.)

[X]     13F NOTICE. (Check here if no holdings reported are in this report,
        and all holdings are reported by other reporting manager(s).)

[ ]     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: