FORM 13F


                UNITED STATES SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC 20549

                               Form 13F COVER PAGE

             Report for the Calendar Year or Quarter Ended: 12/31/00

            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:   SRB Associates IV L.P.
Addess: Two Galleria Tower, 13455 Noel Rd., Ste. 1670, Dallas, TX 75240

Form 13F File Number:

                      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:  John Jaggers

Title: General Partner

Phone: (972) 702-1100

Signature, Place, and Date of Signing:

/s/ John Jaggers
- --------------------------------------------------------------------------------
[Signature]

Dallas, Texas
- --------------------------------------------------------------------------------
[City, State]

February 14, 2001
- --------------------------------------------------------------------------------
[Date]

Report Type (Check only one.):

[X]  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).)

[ ]  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:

None



                              Form 13F Summary Page

                                 Report Summary:


Number of Other Included Managers:              0

Form 13F Information Table Entry Total:         4

Form 13F Information Table Value Total:   $89,249

List of Other Included Managers:                0








                                                        SRB Associates IV L.P.
                                                              FORM 13F
                                                               Public


                                                                         

                                                                                                                 Voting Authority
                             Title of                      Value       Shares/  Sh/ Put/ Invstmt  Other       ----------------------
      Name of Issuer         Class       CUSIP           (x$1000)      PrnAmt   Prn Call Dscretn Managers       Sole   Shared   None
- ---------------------------- --------    ---------      ---------    ---------  --- ---- ----------------     ----------------------
    Accrue Software, Inc.    Common      04269E107           214        85,511  SH        Sole                   85,511   0      0
    Capstone Turbine CorporatCommon      14067D102        63,660     2,273,559  SH        Sole                2,273,559   0      0
    Metawave Communications CCommon      591409107        15,504     1,699,101  SH        Sole                1,699,101   0      0
    T/R Systems, Inc.        Common      87263U102         9,871     1,548,350  SH        Sole                1,548,350   0      0

                                         Total Value      89,249