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Previous: PIEDMONT BANCORP INC, 10-Q, 1999-02-12 |
Next: SCHEIN PHARMACEUTICAL INC, SC 13G, 1999-02-12 |
<PAGE> 1
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
CardioThoracic Systems, Inc.
-----------------------------------------------------------------------------
(Name of Issuer)
Common Stock, $0.01 par value per share
-----------------------------------------------------------------------------
(Title of Class of Securities)
141907-10 5
-----------------------------------------------------------------------------
(Cusip Number)
Check the following if a fee is being paid with this statement [ ]. (A fee
is not required only if the filing person:
(1) has a previous statement on file reporting beneficial ownership of
more than five percent of the class of securities described in Item 1;
and (2) has filed no amendment subsequent thereto reporting beneficial
ownership of five percent or less of such class.) (See Rule 13d-7.)
*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 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).
(Continued on the following page(s)
Page 1 of 14
<PAGE> 2
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 2 OF 19 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Morgenthaler Venture Partners IV 34-1607476 |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Delaware |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 0 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 840,000 |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | |
| | | 0 |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 840,000 |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 840,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.91% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | PN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 3
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 3 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Morgenthaler Management Partners IV 34-1807474 |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | Ohio |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 0 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 840,000 |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | |
| | | 0 |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 840,000 |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 840,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.91% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | PN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 4
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 4 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | David T. Morgenthaler ###-##-#### |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 0 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 841,000 Note (1) |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | 0 |
| | | |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 841,000 Note (1) |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 841,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.91% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | IN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 5
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 5 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Robert D. Pavey ###-##-#### |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 0 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 841,000 Note (2) |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | |
| | | 0 |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 841,000 Note (2) |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 841,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.91% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | IN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 6
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 6 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Robert C. Bellas, Jr. ###-##-#### |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 6,000 Note (3) |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 840,000 |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | |
| | | 6,000 Note (3) |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 840,000 |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 846,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.95% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | IN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 7
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 7 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | Gary J. Morgenthaler ###-##-#### |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 1,000 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 841,000 Note (1) |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | |
| | | 1,000 |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 841,000 Note (1) |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 842,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.92% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | IN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 8
SCHEDULE 13G
<TABLE>
CUSIP NO. 141907-10 5 PAGE 8 OF 14 PAGES
<S> <C>
- -----------------------------------------------------------------------------------------------------------
| 1 | NAME OF REPORTING PERSON |
| | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON |
| | |
| | John D. Lutsi ###-##-#### |
|-----|---------------------------------------------------------------------------------------------------|
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] |
| | ---- |
| | (b) [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 3 | SEC USE ONLY |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 4 | SOURCE OF FUNDS* |
| | |
| | |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 5 | CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT |
| | TO ITEMS 2(d) OR 2(e) [ ] |
| | ---- |
| | |
| | |
|-----|---------------------------------------------------------------------------------------------------|
| 6 | CITIZENSHIP OR PLACE OF ORGANIZATION |
| | |
| | United States |
|-------------------------------|-------|-----------------------------------------------------------------|
| NUMBER OF | 7 | SOLE VOTING POWER |
| | | |
| SHARES | | 0 |
| |-------|-----------------------------------------------------------------|
| BENEFICIALLY | 8 | SHARED VOTING POWER |
| | | |
| OWNED BY | | 840,000 |
| |-------|-----------------------------------------------------------------|
| EACH | 9 | SOLE DISPOSITIVE POWER |
| | | |
| REPORTING | | 0 |
| | | |
| PERSON |-------|-----------------------------------------------------------------|
| | 10 | SHARED DISPOSITIVE POWER |
| WITH | | |
| | | 840,000 |
|-------------------------------|-------|-----------------------------------------------------------------|
| 11 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| | |
| | 840,000 |
|-----|---------------------------------------------------------------------------------------------------|
| 12 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN |
| | SHARES* [ ] |
| | ---- |
|-----|---------------------------------------------------------------------------------------------------|
| 13 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) |
| | |
| | 5.91% |
|-----|---------------------------------------------------------------------------------------------------|
| 14 | TYPE OF REPORTING PERSON* |
| | |
| | IN |
- -----------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE> 9
Schedule 13G
------------
Item 1(a). NAME OF ISSUER: CardioThoracic Systems, Inc.
Item 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 10600 North Tantau
Avenue, Cupertino, CA 95014
Item 2(a). NAMES OF PERSONS FILING: Morgenthaler Venture Partners IV ("MVP IV");
Morgenthaler Management Partners IV ("MMP IV"), the general
partner of MVP IV; David T. Morgenthaler, Robert D. Pavey, Robert
C. Bellas, Jr., Gary J. Morgenthaler, and John D. Lutsi
(collectively, the "General Partners") are individual general
partners of MMP IV, the general partner of MVP IV.
Item 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
The address of the principal business office of MVP IV, MMP IV
and each of the General Partners is:
Morgenthaler Venture Partners IV
629 Euclid Avenue
Suite 700
Cleveland, Ohio 44114
Item 2(c). CITIZENSHIP: MVP IV is a limited partnership organized under the laws
of Delaware and MMP IV is a limited partnership organized under
the laws of the State of Ohio. Each of the General Partners is a
United States citizen.
Item 2(d). TITLE OF CLASS OF SECURITIES: Common Stock, $0.01 par value per share
Item 2(e). CUSIP NUMBER: 141907 10 5
Item 3. IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR 13d-2(b),
CHECK WHETHER THE PERSON FILING IS a:
(a) [ ] Broker or Dealer registered under Section 15 of the
Securities Exchange Act of 1934 (the "Act").
(b) [ ] Bank as defined in Section 3(a)(6) of the Act.
(c) [ ] Insurance Company as defined in Section 3(a)( 19) of the
Act.
(d) [ ] Investment Company registered under Section 8 of the
Investment Company Act of 1940.
(e) [ ] Investment Advisor registered under Section 203 of the
Investment Advisors Act of 1940.
<PAGE> 10
(f) [ ] Employee Benefit Plan, Pension Fund which is subject to
the provisions of the Employee Retirement Income
Security Act of 1974 or Endowment Fund; see Rule
13d-1(b)(1)(ii)(f) of the Act.
(g) [ ] Parent Holding Company, in accordance with Rule
13d-1(b)(ii)(G) of the Act.
(h) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(H) of the
Act.
Not Applicable.
Item 4. OWNERSHIP.
(a) Amount Beneficially Owned: Each of MVP IV and MMP IV may be
deemed to own beneficially 840,000 shares of the Common Stock of
CardioThoracic Systems, Inc. (the "Company") as of December 31,
1998. Gary J. Morgenthaler may be deemed to own beneficially
842,000 shares of the Company's Common Stock as of December 31,
1998, which includes 1,000 shares he holds of record. David T.
Morgenthaler may be deemed to own beneficially 841,000 shares of
the Company's Common Stock as of December 31, 1998. Robert D.
Pavey may be deemed to own beneficially 841,000 shares of the
Company's Common stock as of December 31, 1998. Robert C. Bellas,
Jr. may be deemed to own beneficially 846,000 shares of the
Company's Common Stock as of December 31, 1998, which includes
6,000 shares he holds of record. John D. Lutsi may be deemed to
own beneficially 840,000 shares of the Company's Common Stock as
of December 31, 1998.
MVP IV is the record owner of 840,000 shares. MMP IV, in its
capacity as the general partner of MVP IV, may be deemed to own
beneficially such 840,000 shares.
(b) Percent of Class (based on 14,219,178 shares of Common Stock):
MVPIV: 5.91%
MMP IV: 5.91%
David T. Morgenthaler: 5.91%
Robert D. Pavey: 5.91%
Robert C. Bellas, Jr.: 5.95%
Gary J. Morgenthaler: 5.92%
John D. Lutsi: 5.91%
<PAGE> 11
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote:
Gary J. Morgenthaler: 1,000 shares
Robert C. Bellas, Jr.: 6,000 option shares. 6,000 shares are
exercisable within 60 days of December 31, 1998.
(ii) shared power to vote or to direct the vote:
MVP IV: 840,000 shares
MMP IV: 840,000 shares
David T. Morgenthaler: 841,000 shares
Robert D. Pavey: 841,000 shares
Robert C. Bellas, Jr.: 840,000 shares
Gary J. Morgenthaler: 841,000 shares
John D. Lutsi: 840,000 shares
(IV) sole power to dispose or direct the disposition of:
Gary J. Morgenthaler: 1,000 shares
Robert C. Bellas, Jr.: 6,000 option shares. 6,000
shares are exercisable within 60 days of December 31,
1998.
(iv) shared power to dispose or direct the disposition of:
MVP IV: 840,000 shares
MMP IV: 840,000 shares
David T. Morgenthaler: 841,000 shares
Robert D. Pavey: 841,000 shares
Robert C. Bellas, Jr.: 840,000 shares
Gary J. Morgenthaler: 841,000 shares
John D. Lutsi: 840,000 shares
Each of MVP IV and MMP IV and each of the General Partners expressly
disclaims beneficial ownership of any shares of Common Stock of the
Company, except in the case of MVP IV, for the 840,000 shares which it
holds of record, and in the case of Gary J. Morgenthaler, for the
1,000 shares which he holds of record, and Robert C. Bellas, Jr. for
the 6,000 option shares of which all 6,000 shares are exercisable
within 60 days of December 31, 1998.
Item 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
Not Applicable.
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.
<PAGE> 12
Item 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not Applicable. MVP IV, MMP IV and each of the General Partners
expressly disclaim membership in a "group" as defined in Rule 13d-
1(b)(ii)(H).
Item 9. NOTICE OF DISSOLUTION OF GROUP.
Not Applicable.
Item 10. CERTIFICATION.
Not Applicable. This statement on Schedule 13G is not filed pursuant
to Rule 13d-1(b).
By signing below, I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired for the purpose of and do not
have the effect of changing or influencing the control of the issuer of such
securities and were not acquired in connection with or as a participant in any
transaction having such purposes or effect.
<PAGE> 13
CardioThoracic Systems, Inc.
Schedule 13G
Information included in report as of 12/31/98.
Footnotes
(1) Amount includes 1,000 shares owned by Morgenthaler Family Partnership
(MFP). The reporting person is a general partner of MFP.
(2) Amount includes 1,000 shares owned by Pavey Family Partnership (PFP).
The reporting person is a general partner of PFP.
(3) Robert C. Bellas has received a grant for 6,000 shares of common stock, all
6,000 shares are exercisable within 60 days of December 31, 1998.
<PAGE> 14
SIGNATURES
----------
After reasonable inquiry and to the best of its knowledge and belief, I
certify that the information set forth in this statement is true, complete, and
correct.
Date: February
MORGENTHALER VENTURE PARTNERS IV
By: Morgenthaler Management Partners IV
By: *
----------------------------------------
General Partner
MORGENTHALER MANAGEMENT PARTNERS IV
By: *
----------------------------------------
General Partner
*
----------------------------------------
David T. Morgenthaler
*
----------------------------------------
Robert D. Pavey
*
----------------------------------------
Robert C. Bellas, Jr.
*
----------------------------------------
Gary J. Morgenthaler
*
----------------------------------------
John D. Lutsi
*By: /s/ Theodore A. Laufik
---------------------------------------
Theodore A. Laufik
Attorney-in-Fact
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