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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
------------
SCHEDULE 13G/A
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO
RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO
FILED PURSUANT TO 13d-2 (b)
(Amendment No. 1 )*
PDF Solutions, Inc.
--------------------------------------------------------------------------------
(Name of Issuer)
Common Stock
--------------------------------------------------------------------------------
(Title of Class of Securities)
693282105
--------------------------------------------------------------------------------
(CUSIP Number)
December 31, 2002
--------------------------------------------------------------------------------
(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
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).
(Continued on following pages)
Page 1 of 16 pages
CUSIP No. 693282105 Page 2 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
U.S. Venture Partners IV, L.P. ("USVP IV")
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
538,750 shares, except that Presidio Management Group
IV, L.P. ("PMG IV"), the general partner of USVP IV, may
be deemed to have sole voting power with respect to such
shares, and William K Bowes, Jr. ("Bowes"), Irwin
Federman ("Federman"), Steven M. Krausz ("Krausz") and
Philip M. Young ("Young"), the general partners of PMG
IV, may be deemed to have shared voting power with
respect to such shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY See response to row 5.
OWNED BY --------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 538,750 shares, except that PMG IV, the general partner
WITH of USVP IV, may be deemed to have sole dispositive power
with respect to such shares, and Bowes, Federman, Krausz
and Young, the general partners of PMG IV, may be deemed
to have shared dispositive power with respect to such
shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
See response to row 7.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
538,750
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.3%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 3 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Second Ventures II, L.P. ("SV II")
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
65,626 shares, except that PMG IV, the general partner
of SV II, may be deemed to have sole voting power with
respect to such shares, and Bowes, Federman, Krausz and
Young, the general partners of PMG IV, may be deemed to
have shared voting power with respect to such shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY See response to row 5.
OWNED BY --------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 65,626 shares, except that PMG IV, the general partner
WITH of SV II, may be deemed to have sole dispositive power
with respect to such shares, and Bowes, Federman, Krausz
and Young, the general partners of PMG IV, may be deemed
to have shared dispositive power with respect to such
shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
See response to row 7.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
65,626
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.3 %
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 4 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
USVP Entrepreneur Partners II, L.P. ("UEP II")
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
18,749 shares, except that PMG IV, the general partner
of UEP II, may be deemed to have sole voting power with
respect to such shares, and Bowes, Federman, Krausz and
Young, the general partners of PMG IV, may be deemed to
have shared voting power with respect to such shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY See response to row 5.
OWNED BY --------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 18,749 shares, except that PMG IV, the general partner
of UEP II, may be deemed to have sole dispositive power
with respect to such shares, and Bowes, Federman, Krausz
and Young, the general partners of PMG IV, may be deemed
to have shared dispositive power with respect to such
shares.
WITH --------------------------------------------------------
8 SHARED DISPOSITIVE POWER
See response to row 7.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
18,749
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.1%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 5 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Presidio Management Group IV, L.P.
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. PMG IV is the general
partner of USVP IV, SV II and UEP II, and may be deemed
to have sole voting power with respect to such shares,
and Bowes, Federman, Krausz and Young, the general
partners of PMG IV, may be deemed to have shared voting
power with respect to such shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY See response to row 5.
OWNED BY --------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 623,125 shares, of which 538,750 are directly owned by
WITH USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. PMG IV is the general
partner of USVP IV, SV II and UEP II, and may be deemed
to have sole dispositive power with respect to such
shares, and Bowes, Federman, Krausz and Young, the
general partners of PMG IV, may be deemed to have shared
dispositive power with respect to such shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
See response to row 7.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
623,125
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.7%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 6 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
William K. Bowes, Jr.
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
42,747 shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 623,125 shares, of which 538,750 are directly owned by
OWNED BY USVP IV, 65,626 are directly owned by SV II and 18,749
EACH are directly owned by UEP II. Bowes is a general partner
REPORTING of PMG IV, the general partner of USVP IV, SV II and UEP
PERSON II, and may be deemed to have shared voting power with
WITH respect to such shares.
--------------------------------------------------------
7 SOLE DISPOSITIVE POWER
42,747 shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. Bowes is a general partner
of PMG IV, the general partner of USVP IV, SV II and UEP
II, and may be deemed to have shared dispositive power
with respect to such shares.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
665,872
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.9%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 7 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Irwin Federman
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
46,801 shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 623,125 shares, of which 538,750 are directly owned by
OWNED BY USVP IV, 65,626 are directly owned by SV II and 18,749
EACH are directly owned by UEP II. Federman is a general
REPORTING partner of PMG IV, the general partner of USVP IV, SV II
PERSON and UEP II, and may be deemed to have shared voting
WITH power with respect to such shares.
--------------------------------------------------------
7 SOLE DISPOSITIVE POWER
46,801 shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. Federman is a general
partner of PMG IV, the general partner of USVP IV, SV II
and UEP II, and may be deemed to have shared dispositive
power with respect to such shares.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
669,926
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.9%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 8 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Steven M. Krausz
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
10,953 shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 623,125 shares, of which 538,750 are directly owned by
OWNED BY USVP IV, 65,626 are directly owned by SV II and 18,749
EACH are directly owned by UEP II. Krausz is a general
REPORTING partner of PMG IV, the general partner of USVP IV, SV II
PERSON and UEP II, and may be deemed to have shared voting
WITH power with respect to such shares.
--------------------------------------------------------
7 SOLE DISPOSITIVE POWER
10,953 shares.
--------------------------------------------------------
8 SHARED DISPOSITIVE POWER
623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. Krausz is a general
partner of PMG IV, the general partner of USVP IV, SV II
and UEP II, and may be deemed to have shared dispositive
power with respect to such shares.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
634,078
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.8%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
CUSIP No. 693282105 Page 9 of 16 Pages
--------------------------------------------------------------------------------
1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Philip M. Young
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) |_|
(b) |X|
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S. Citizen
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
49,980 shares.
--------------------------------------------------------
NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. Young is a general partner
of PMG IV, the general partner of USVP IV, SV II and UEP
II, and may be deemed to have shared voting power with
respect to such shares.
OWNED BY --------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 49,980 shares.
WITH --------------------------------------------------------
8 SHARED DISPOSITIVE POWER
623,125 shares, of which 538,750 are directly owned by
USVP IV, 65,626 are directly owned by SV II and 18,749
are directly owned by UEP II. Young is a general partner
of PMG IV, the general partner of USVP IV, SV II and UEP
II, and may be deemed to have shared dispositive power
with respect to such shares.
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
673,105
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
|_|
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
2.9%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
--------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
Page 10 of 16
This statement amends the statement on Schedule 13G filed by U.S.
Venture Partners IV, L.P., Second Ventures II, L.P., USVP Entrepreneur Partners
II, L.P., Presidio Management Group IV, L.P., William K. Bowes, Jr., Irwin
Federman , Steven M. Krausz and Philip M. Young. The foregoing entities and
individuals are collectively referred to as the "Reporting Persons."
ITEM 4. OWNERSHIP:
The following information with respect to the ownership of the Common
Stock of the issuer by the persons filing this Statement is provided as
of December 31, 2002:
(a) Amount beneficially owned:
See Row 9 of cover page for each Reporting Person.
(b) Percent of Class:
See Row 11 of cover page for each Reporting Person.
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the vote:
See Row 5 of cover page for each Reporting Person.
(ii) Shared power to vote or to direct the vote:
See Row 6 of cover page for each Reporting Person.
(iii)Sole power to dispose or to direct the disposition
of:
See Row 7 of cover page for each Reporting Person.
(iv) Shared power to dispose or to direct the
disposition of:
See Row 8 of cover page for each Reporting Person.
Page 11 of 16
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:
Yes [X]
Page 12 of 16
SIGNATURES
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.
Dated: February 11, 2003
U.S. Venture Partners IV, L.P. /s/ Michael Maher
By Presidio Management Group IV, L.P. -----------------------------------------
Its General Partner Signature
Michael Maher
Chief Financial Officer/Attorney-In-Fact
Second Ventures II, L.P. /s/ Michael Maher
By Presidio Management Group IV, L.P. -----------------------------------------
Its General Partner Signature
Michael Maher
Chief Financial Officer/Attorney-In-Fact
USVP Entrepreneur Partners II, L.P. /s/ Michael Maher
By Presidio Management Group IV, L.P. ----------------------------------------
Its General Partner Signature
Michael Maher
Chief Financial Officer/Attorney-In-Fact
Presidio Management Group IV, L.P. /s/ Michael Maher
A Delaware Limited Partnership -----------------------------------------
Signature
Michael Maher
Chief Financial Officer/Attorney-In-Fact
William K. Bowes, Jr. /s/ Michael Maher
-----------------------------------------
Michael Maher
Attorney-In-Fact
Irwin Federman /s/ Michael Maher
-----------------------------------------
Michael Maher
Attorney-In-Fact
Page 13 of 16
Steven M. Krausz /s/ Michael Maher
-----------------------------------------
Michael Maher
Attorney-In-Fact
Philip M. Young /s/ Michael Maher
-----------------------------------------
Michael Maher
Attorney-In-Fact
Page 14 of 16
EXHIBIT INDEX
Found on
Sequentially
Exhibit Numbered Page
------- -------------
Exhibit A: Agreement of Joint Filing 15
Exhibit B: Reference to Michael P. Maher as Attorney-In-Fact 16
Page 15 of 16
EXHIBIT A
Agreement of Joint Filing
The Reporting Persons have agreed that a single Schedule 13G (or any
amendment thereto) relating to the Common Stock of PDF Solutions, Inc. shall be
filed on behalf of each of the Reporting Persons. Note that copies of the
applicable agreement are already on file with the appropriate agencies.
Page 16 of 16
EXHIBIT B
REFERENCE TO MICHAEL MAHER AS ATTORNEY-IN-FACT
Michael P. Maher has signed the enclosed documents as Attorney-In-Fact.
Note that copies of the applicable Powers of Attorney are already on file with
the appropriate agencies.