<PAGE>
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
------------
SCHEDULE 13G
(Rule 13d-102)
INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. _____)/1/
Ventana Medical Systems, Inc.
-----------------------------
(Name of Issuer)
Common Stock, $0.001 Par Value Per Share
----------------------------------------
(Title of Class of Securities)
92276H106
---------
(CUSIP Number)
------------
_______________________
/1/ 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 disclosures provided in a prior cover page.
The information required in 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 18 Pages
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 2 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Marquette Venture Partners, L.P.
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3504827
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
1,464,153
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
1,464,153
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
1,464,153
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
13.3%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 3 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Marquette Venture Associates, L.P.
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3504831
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
1,464,153
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
1,464,153
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
1,464,153
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
13.3%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 4 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Marquette Management Partners
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3504830
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Illinois
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
1,464,153
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
1,464,153
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
1,464,153
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
13.3%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 5 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Marquette Venture Partners II, L.P.
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3820302
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
441,871
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
441,871
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
441,871
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
4.0%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 6 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: MVP II Affiliates Fund, L.P.
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3871877
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
12,626
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
12,626
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
12,626
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
0.1%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 7 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Marquette General II, L.P.
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3820303
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
454,497
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
454,497
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
454,497
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
4.1%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 8 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: JED Limited Partnership
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3760173
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
454,497
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
454,497
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
454,497
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
4.1%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 9 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: LDR Limited Partnership
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: 36-3760176
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
Delaware
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
454,497
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
454,497
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
454,497
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
4.1%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
PN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 10 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: James E. Daverman
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON:###-##-####
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
United States of America
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
1,918,650
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
1,918,650
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
1,918,650
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
17.5%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
IN
- ------------------------------------------------------------------------------
SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- ----------------------- ---------------------
CUSIP NO. 92276H106 13G PAGE 11 OF 18 PAGES
- ----------------------- ---------------------
- ------------------------------------------------------------------------------
NAME OF REPORTING PERSON: Lloyd D. Ruth
1 S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON: ###-##-####
- ------------------------------------------------------------------------------
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
2 (a) [_]
(b) [_]
- ------------------------------------------------------------------------------
SEC USE ONLY
3
- ------------------------------------------------------------------------------
CITIZENSHIP OR PLACE OF ORGANIZATION
4
United States of America
- ------------------------------------------------------------------------------
SOLE VOTING POWER
5
NUMBER OF None
SHARES -----------------------------------------------------------
SHARED VOTING POWER
BENEFICIALLY 6
1,918,650
OWNED BY
-----------------------------------------------------------
EACH SOLE DISPOSITIVE POWER
7
REPORTING None
PERSON -----------------------------------------------------------
SHARED DISPOSITIVE POWER
WITH 8
1,918,650
- ------------------------------------------------------------------------------
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
9
1,918,650
- ------------------------------------------------------------------------------
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
10
[_]
- ------------------------------------------------------------------------------
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
11
17.5%
- ------------------------------------------------------------------------------
TYPE OF REPORTING PERSON*
12
IN
- ------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
ITEM 1(A) NAME OF ISSUER:
--------------
Ventana Medical Systems, Inc. ("Ventana")
ITEM 1(B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
-----------------------------------------------
3865 N. Business Center Drive
Tucson, AZ 85705
ITEM 2(A) NAME OF PERSON FILING:
---------------------
This Schedule 13G is being jointly filed by each of the following
persons pursuant to Rule 13d-1(f) promulgated by the Securities and
Exchange Commission pursuant to Section 13 of the Securities Exchange
Act of 1934, as amended (the "Act"): (i) Marquette Venture Partners,
L.P. ("MVP"), a Delaware limited partnership, by virtue of its direct
beneficial ownership of 1,464,153 shares of common stock, par value
$0.001 per share (the "Common Stock"), of Ventana; (ii) Marquette
Venture Associates, L.P. ("MVA"), a Delaware limited partnership, as
the sole general partner of MVP; (iii) Marquette Management Partners
("MMP"), a Delaware general partnership, as the sole general partner
of MVA; (iv) Marquette Venture Partners II, L.P. ("MVP II"), a
Delaware limited partnership, by virtue of its direct beneficial
ownership of 441,871 shares of Common Stock; (v) MVP II Affiliates
Fund, L.P. ("MVP II Affiliates"), a Delaware limited partnership, by
virtue of its direct beneficial ownership of 12,626 shares of Common
Stock; (vi) Marquette General II, L.P. ("MG II"), a Delaware limited
partnership, as the sole general partner of MVP II and MVP II
Affiliates; (vii) JED Limited Partnership ("JED"), a Delaware limited
partnership, as a general partner of MG II; (viii) LDR Limited
Partnership ("LDR"), a Delaware limited partnership, as a general
partner of MG II; (ix) James E. Daverman ("Mr. Daverman"), an
individual, as the sole general partner of JED and as a general
partner of MMP; and (x) Lloyd D. Ruth ("Mr. Ruth"), an individual, as
the sole general partner of LDR and as a general partner of MMP. MVP,
MVA, MMP, MVP II, MVP II Affiliates, MG II, JED, LDR, Mr. Daverman
and Mr. Ruth are hereinafter collectively referred to as the
"Reporting Persons."
The Reporting Persons have entered into a Joint Filing Agreement,
dated February 13, 1997, a copy of which is filed with this Schedule
13G as Exhibit A, pursuant to which the Reporting Persons have agreed
to file this statement jointly in accordance with the provisions of
Rule 13d-1(f)(1) under the Act.
ITEM 2(B) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
-----------------------------------------------------------
The address of the principal business office of each of the Reporting
Persons is:
Page 12 of 18 Pages
<PAGE>
Corporate 500 Centre
520 Lake Cook Road, Suite 450
Deerfield, Illinois 60015
ITEM 2(C) CITIZENSHIP
-----------
MVP, MVA, MVP II, MVP II Affiliates, MG II, JED and LDR are limited
partnerships organized under the laws of Delaware. MMP is a general
partnership organized under the laws of Illinois.
Mr. Daverman and Mr. Ruth are United States citizens.
ITEM 2(D) TITLE OF CLASS OF SECURITIES:
----------------------------
Common Stock, $0.001 par value per share.
ITEM 2(E) CUSIP NO.:
---------
92276H106
ITEM 3 IF THIS STATEMENT IS FILED PURSUANT TO RULES 13D-1(B)
OR 13D-2(B), CHECK WHETHER THE PERSONS FILING IS A:
---------------------------------------------------
The persons filing are not described in any category listed under
this item.
ITEM 4 OWNERSHIP
---------
MVA is the sole general partner of MVP; MMP is the sole general
partner of MVA; MG II is the sole general partner of both MVP II and
MVP II Affiliates; JED and LDR are the general partners of MG II; Mr.
Daverman is the sole general partner of JED and a general partner of
MMP; and Mr. Ruth is the sole general partners of LDR and a general
partner of MMP. As a result of such relationships, (i) MVA, MMP and
both Messrs. Daverman and Ruth may be deemed to share voting and
dispositive power with respect to the shares held by MVP, (ii) MG II,
JED, LDR and both Mr. Daverman and Mr. Ruth may be deemed to share
voting and dispositive power with respect to the shares held by MVP
II and MVP II Affiliates, and (iii) each of the Reporting Persons may
be deemed beneficially to own the following number of shares:
<TABLE>
<CAPTION>
(a) Amount (b) Percent of Class:
Beneficially
Owned:
<S> <C> <C>
MVP 1,464,153 13.3%
MVA 1,464,153 13.3%
MMP 1,464,153 13.3%
</TABLE>
Page 13 of 18 Pages
<PAGE>
<TABLE>
<S> <C> <C>
MVP II 441,871 4.0%
MVP II
Affiliates 12,626 0.1%
MG II 454,497 4.1%
JED 454,497 4.1%
LDR 454,497 4.1%
Daverman 1,918,650 17.5%
Ruth 1,918,650 17.5%
(c) Number of shares as to which such person has:
(i) Sole power to vote or (ii) Shared power to vote or
direct the vote: to direct the vote:
MVP None 1,464,153
MVA None 1,464,153
MMP None 1,464,153
MVP II None 441,871
MVP II
Affiliates None 12,626
MG II None 454,497
JED None 454,497
LDR None 454,497
Daverman None 1,918,650
Ruth None 1,918,650
(iii) Sole power to dispose (iv) Shared power to dispose
or to direct the or to direct the
disposition of: disposition of:
MVP None 1,464,153
MVA None 1,464,153
MMP None 1,464,153
MVP II None 441,871
MVP II
Affiliates None 12,626
MG II None 454,497
</TABLE>
Page 14 of 18 Pages
<PAGE>
<TABLE>
<S> <C> <C>
JED None 454,497
LDR None 454,497
Daverman None 1,918,650
Ruth None 1,918,650
</TABLE>
Each Reporting Person expressly disclaims beneficial ownership of any shares of
Common Stock beneficially owned by each other Reporting Person.
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:
------------------------------------------------
No other person has the right to receive or the power to direct the
receipt of dividends from, or other proceeds from the sale, of the
shares.
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 CERTIFICATION:
-------------
Not applicable.
Page 15 of 18 Pages
<PAGE>
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.
DATE: FEBRUARY 13, 1997
MARQUETTE VENTURE PARTNERS, L.P.
MARQUETTE VENTURE ASSOCIATES, L.P.
MARQUETTE MANAGEMENT PARTNERS
MARQUETTE VENTURE PARTNERS II, L.P.
MVP II AFFILIATES FUND, L.P.
MARQUETTE GENERAL II, L.P.
LDR LIMITED PARTNERSHIP
By: /s/ Lloyd D. Ruth
----------------------------------
Lloyd D. Ruth
as authorized signatory
JED LIMITED PARTNERSHIP
By: /s/ James E. Daverman
----------------------------------
James E. Daverman
as authorized signatory
/s/ James E. Daverman
----------------------------------
JAMES E. DAVERMAN
/s/ Lloyd D. Ruth
----------------------------------
LLOYD D. RUTH
Page 16 of 18 Pages
<PAGE>
EXHIBIT A
---------
AGREEMENT REGARDING THE JOINT FILING OF
SCHEDULE 13G
_____________________
The undersigned hereby agree as follows:
(i) Each of them is individually eligible to use the Schedule 13G (the
"Schedule 13G") to which this Exhibit is attached, and such Schedule 13G is
filed on behalf of each of them; and
(ii) Each of them is responsible for the timely filing of such
Schedule 13G and any subsequent amendments thereto, and for the completeness and
accuracy of the information concerning such person contained therein; but none
of them is responsible for the completeness or accuracy of the information
concerning the other persons making the filing, unless such person knows or has
reason to believe that such information is inaccurate.
Date: FEBRUARY 13, 1997
MARQUETTE VENTURE PARTNERS, L.P.
MARQUETTE VENTURE ASSOCIATES, L.P.
MARQUETTE MANAGEMENT PARTNERS
MARQUETTE VENTURE PARTNERS II, L.P.
MVP II AFFILIATES FUND, L.P.
MARQUETTE GENERAL II, L.P.
LDR LIMITED PARTNERSHIP
By: /s/ Lloyd D. Ruth
-----------------------------------
Lloyd D. Ruth
as authorized signatory
Page 17 of 18 Pages
<PAGE>
JED LIMITED PARTNERSHIP
By: /s/ James E. Daverman
-------------------------------------
James E. Daverman
as authorized signatory
/s/ James E. Daverman
-------------------------------------
JAMES E. DAVERMAN
/s/ Lloyd D. Ruth
-------------------------------------
LLOYD D. RUTH
Page 18 of 18 Pages
