<PAGE> 1
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
Alteon WebSystems, Inc.
(Name of Issuer)
Common Stock, $.001 par value per share
(Title of Class of Securities)
02145A 10 9
(CUSIP Number)
December 31, 1999
(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 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).
POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED
IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY
VALID OMB CONTROL NUMBER.
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CUSIP No. 02145A 10 9
________________________________________________________________________________
1. NAME OF REPORTING PERSONS.
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY).
Matrix Partners IV, L.P. (04-3260303)
________________________________________________________________________________
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
Delaware
________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER
SHARES -4,704,775-
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY -0-
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER
REPORTING -4,704,775-
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER
WITH: -0-
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-4,704,775-
________________________________________________________________________________
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE INSTRUCTIONS)
[_]
________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.02%
________________________________________________________________________________
12. TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
PN
________________________________________________________________________________
Page 2 of 8 pages
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CUSIP No. 02145A 10 9
________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Matrix IV Entrepreneurs Fund, L.P. (04-3293062)
________________________________________________________________________________
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
Delaware
________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER
SHARES -247,619-
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY -0-
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER
REPORTING -247,619-
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER
WITH: -0-
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-247,619-
________________________________________________________________________________
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions) [_]
________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.63%
________________________________________________________________________________
12. TYPE OF REPORTING PERSON (See Instructions)
PN
________________________________________________________________________________
Page 3 of 8 pages
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CUSIP No. 02145A 10 9
________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Matrix IV Management Co., L.P. (04-3260294)
________________________________________________________________________________
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
Delaware
________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER
SHARES -4,952,394-
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY -0-
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER
REPORTING -4,952,394-
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER
WITH: -0-
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-4,952,394-
________________________________________________________________________________
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions) [_]
________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.65%
________________________________________________________________________________
12. TYPE OF REPORTING PERSON (See Instructions)
PN
________________________________________________________________________________
Page 4 of 8 pages
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CUSIP No. 02145A 10 9
________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
Andrew W. Verhalen (###-##-####)
________________________________________________________________________________
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
United States
________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER
SHARES -4,952,394-
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY -0-
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER
REPORTING -4,952,394-
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER
WITH: -0-
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-4,952,394-
________________________________________________________________________________
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions) [_]
________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
12.65%
________________________________________________________________________________
12. TYPE OF REPORTING PERSON (See Instructions)
IN
________________________________________________________________________________
Page 5 of 8 pages
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CUSIP No. 02145A 10 9
Item 1(a) Name of Issuer:
Alteon WebSystems, Inc.
Item 1(b) Address of Issuer's Principal Executive Offices:
6351 San Ignacio Ave.
San Jose, CA 95119
Item 2(a) Name of Person Filing:
Matrix Partners IV, L.P. ("Matrix IV"); Matrix IV
Entrepreneurs Fund, L.P. ("Entrepreneurs", and
together with Matrix IV, the "Partnerships"); Matrix
IV Management Co., L.P. ("Management"), the general
partner of each of the Partnerships; and Andrew W.
Verhalen ("Verhalen"), the general partner who has
sole voting and dispositive authority with respect to
shares of Alteon WebSystems, Inc. held of record by
the Partnerships.
Item 2(b) Address of Principal Business Office or, if none,
Residence:
The address of the reporting persons is:
1000 Winter Street Suite 4500
Waltham, MA 02451
Item 2(c) Citizenship:
Matrix IV is a limited partnership organized under
the laws of the State of Delaware. Entrepreneurs is a
limited partnership organized under the laws of the
State of Delaware. Management is a limited
partnership organized under the laws of the State of
Delaware. Mr. Verhalen is a citizen of the United
States.
Item 2(d) Title of Class of Securities:
Common Stock, par value $.001 per share (the "Common
Stock").
Item 2(e) CUSIP Number:
02145A 10 9
Item 3 Description of Person Filing:
Not applicable.
Item 4 Ownership(1):
(a) Amount Beneficially Owned:
Matrix IV is the record holder of 4,704,775
shares of Common Stock and may be deemed to
beneficially own the 4,704,775 shares of
Common Stock held of record by it.
Entrepreneurs is the record holder of
247,619 shares of Common Stock and may be
deemed to beneficially own the 247,619
shares of Common Stock held of record by it.
Management, as general partner of the
Partnerships, may be deemed to beneficially
own the 4,952,394 shares of Common Stock
held
- ------------------
(1) As of December 31, 1999.
Page 6 of 8 pages
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CUSIP No. 02145A 10 9
of record by the Partnerships. Mr. Verhalen,
as the general partner of Management who has
sole voting and dispositive authority with
respect to shares of Alteon WebSystems, Inc.
held of record by the Partnerships, may be
deemed to beneficially own the 4,952,394
shares of Common Stock held of record by the
Partnerships. The filing of this statement
shall not be construed as an admission that
any of the reporting persons are, for the
purpose of Section 13(d) or 13(g) of the
Act, the beneficial owners of any securities
covered under this statement.
(b) Percent of Class:
Matrix IV: 12.02%
Entrepreneurs: 0.63%
Management: 12.65%
Verhalen: 12.65%
(c) Number of Shares as to which the person has:
(i) sole voting power; (ii) shared voting
power; (iii) sole dispositive power; (iv)
shared dispositive power:
Matrix IV may be deemed to have sole power
to vote and dispose of 4,704,775 shares of
Common Stock held of record by it.
Entrepreneurs may be deemed to have sole
power to vote and dispose of 247,619 shares
of Common Stock held of record by it.
Management, as general partner of the
Partnerships, may be deemed to have sole
power to vote and dispose of the 4,952,394
shares of Common Stock held of record by the
Partnerships. Mr. Verhalen, as the general
partner of Management who has sole voting
and dispositive authority with respect to
shares of Alteon, Inc. held of record by the
Partnerships, may be deemed to have sole
power to vote the 4,952,394 shares of Common
Stock held of record by the Partnerships.
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.
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 7 of 8 pages
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CUSIP No. 02145A 10 9
SIGNATURE
After reasonable inquiry and to the best of the knowledge and belief of
each of the undersigned, each of the undersigned hereby certifies that the
information set forth in this statement is true, complete and correct.
DATED: February 10, 2000
MATRIX PARTNERS IV, L.P.
By: Matrix IV Management Co., L.P.
General Partner
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
MATRIX IV ENTREPRENEURS FUND, L.P.
By: Matrix IV Management Co., L.P.
General Partner
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
MATRIX IV MANAGEMENT CO., L.P.
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
/s/ Andrew W. Verhalen
Andrew W. Verhalen
Page 8 of 8
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CUSIP No. 02145A 10 9
Exhibit I
AGREEMENT
Pursuant to Rule 13d-1(f)(1) under the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree that only one statement containing the
information required by Schedule 13G need be filed with respect to the ownership
by each of the undersigned of the shares of Common Stock of Alteon WebSystems,
Inc.
EXECUTED as a sealed instrument this 10th day of February, 2000.
MATRIX PARTNERS IV, L.P.
By: Matrix IV Management Co., L.P.
General Partner
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
MATRIX IV ENTREPRENEURS FUND, L.P.
By: Matrix IV Management Co., L.P.
General Partner
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
MATRIX IV MANAGEMENT CO., L.P.
By: /s/ Andrew W. Verhalen
Andrew W. Verhalen
General Partner
/s/ Andrew W. Verhalen
Andrew W. Verhalen
