SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*


                                 SurModics, Inc.
                                (Name of Issuer)

                          Common Stock, $.05 par value
                         (Title of Class of Securities)

                                   868873 10 0
                                 (CUSIP Number)

                                December 31, 2000
             (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [   ]    Rule 13d-1(b)
         [   ]    Rule 13d-1(c)
         [ X ]    Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).







                                Page 1 of 4 Pages





                                  SCHEDULE 13G
CUSIP No. 868873 10 0                                         Page 2 of 4 Pages

1      NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
       (ENTITIES ONLY)
       David A. Koch
2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
                                                                         (a) [ ]
                                                                         (b) [ ]

3      SEC USE ONLY

4      CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A.
       NUMBER OF      5    SOLE VOTING POWER
         SHARES            874,180 (includes 47,600 shares which may be
      BENEFICIALLY         purchased upon exercise of options)
        OWNED BY      6    SHARED VOTING POWER
          EACH             192,000
       REPORTING      7    SOLE DISPOSITIVE POWER
         PERSON            874,180 (includes 47,600 shares which may be
          WITH             purchased upon exercise of options)
                      8    SHARED DISPOSITIVE POWER
                           192,000
9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
       1,066,180 (includes 47,600 shares which may be purchased upon exercise
       of options)
10     CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
       (SEE INSTRUCTIONS)                                                    [ ]

11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
       6.4%
12     TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
       IN





Answer every item. If an item is inapplicable or the answer is in the negative,
so state.

Item 1(a)   Name of Issuer:

            SurModics, Inc.

Item 1(b)   Address of Issuer's Principal Executive Offices:

            9924 West 74th Street
            Eden Prairie, MN  55344

Item 2(a)   Name of Person Filing:

            See Cover Page Item 1

Item 2(b)   Address of Principal Business Office or, if none, residence:

            1582A Homestead Trail
            Long Lake, MN  55356

Item 2(c)   Citizenship:

            See Cover Page Item 4

Item 2(d)   Title of Class of Securities:

            Common Stock, $.05 par value

Item 2(e)   CUSIP No.:

            See Cover Page

Item 3      Statement filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c):

            Not applicable

Item 4      Ownership

            See Cover Page Items 5 through 11

Item 5      Ownership of Five Percent or Less of a Class:

            If this statement is being filed to report the fact that as of
            the date hereof the reporting person has ceased to be the
            beneficial owner of more than five percent of the class of
            securities, check the following [ ].






Item 6      Ownership of More than Five Percent on Behalf of Another Person:

            Not applicable

Item 7      Identification and Classification of the Subsidiary Which Acquired
            the Security Being Reported on by the Parent Holding Company:

            Not applicable

Item 8      Identification and Classification of Members of the Group:

            Not applicable

Item 9      Notice of Dissolution of Group:

            Not applicable

Item 10     Certifications:

            Not applicable

                                    SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct as of December 31, 2000.


                                      January 22,   2001
                                               (Date)

                                      /s/ David A. Koch
                                               (Signature)

                                      David A. Koch
                                               (Name and title)