SCHEDULE 13G
INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 3)*
Applied Digital Access, Inc.
------------------------------
(Name of Issuer)
Common Stock
------------------------------
(Title of Class of Securities)
038181
------------------------------
(CUSIP Number)
*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)
Page 1 of 15 Pages
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<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 2 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Institutional Venture Partners IV 94-3070638
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH none
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
none
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
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</TABLE>
Page 2 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 3 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Institutional Venture Management IV 94-3070637
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH none
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
none
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 3 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 4 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Samuel D. Colella ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH none
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
none
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 4 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 5 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Reid W. Dennis ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH 38,615
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
38,615
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
38,615
- ------------- ----------------------------------------------------------------------------------------------------------------------
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*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 5 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 6 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Mary Jane Elmore ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH 38,273
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
38,273
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
38,273
- ------------- ----------------------------------------------------------------------------------------------------------------------
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*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 6 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 7 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Norman A. Fogelsong ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH 37,821
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
37,821
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
37,821
- ------------- ----------------------------------------------------------------------------------------------------------------------
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*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 7 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 8 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
T. Peter Thomas ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH 21,838
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
21,838
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
21,838
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0.2%
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 8 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 9 of 15 Pages
----------------------------------------
- ----------------------------------------------------- ------------------------------------------
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Geoffrey Y. Yang ###-##-####
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH 13,334
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
13,334
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
13,334
- ------------- ----------------------------------------------------------------------------------------------------------------------
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*
IN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 9 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 10 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Institutional Venture Partners III 94-2961014
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH none
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
none
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- ------------- ----------------------------------------------------------------------------------------------------------------------
</TABLE>
Page 10 of 15 Pages
<PAGE>
<TABLE>
<S> <C> <C>
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CUSIP No. 038181 13G Page 11 of 15 Pages
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1 NAME OF REPORTING PERSONS
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
Institutional Venture Management III 94-2961011
- ------------- ----------------------------------------------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) |X|
- ------------- ----------------------------------------------------------------------------------------------------------------------
3 SEC USE ONLY
- ------------- ----------------------------------------------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ---------------------------- ------- -----------------------------------------------------------------------------------------------
NUMBER OF SHARES 5 SOLE VOTING POWER
BENEFICIALLY OWNED BY EACH
REPORTING PERSON WITH none
------- -----------------------------------------------------------------------------------------------
6 SHARED VOTING POWER
none
------- -----------------------------------------------------------------------------------------------
7 SOLE DISPOSITIVE POWER
none
------- -----------------------------------------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- ------------- ----------------------------------------------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
none
- ------------- ----------------------------------------------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- ------------- ----------------------------------------------------------------------------------------------------------------------
<FN>
*SEE INSTRUCTIONS BEFORE FILLING OUT!
</FN>
</TABLE>
Page 11 of 15 Pages
<PAGE>
Item 1.
(a) Name of Issuer: Applied Digital Access, Inc.
(b) Address of Issuer's Principal Executive Offices:
9855 Scranton Road
San Diego, CA 92121
<TABLE>
Item 2.
<CAPTION>
<S> <C>
(a) Name of Persons Filing:
Institutional Venture Partners III ("IVP III")
Institutional Venture Management III ("IVM III")
Institutional Venture Partners IV ("IVP IV")
Institutional Venture Management IV ("IVM IV")
Samuel D. Colella ("SDC")
Reid W. Dennis ("RWD")
Mary Jane Elmore ("MJE")
Norman A. Fogelsong ("NAF")
T. Peter Thomas ("TPT")
Geoffrey Y. Yang ("GYY")
IVM III is the General Partner of IVP III. SDC, RWD, MJE & TPT,are
General Partners of IVM III.
IVM IV is the General Partner of IVP IV. SDC, RWD, MJE, NAF, TPT, & GYY
are General Partners of IVM IV.
</TABLE>
(b) Address of Principal Business Office or, if None, Residence:
3000 Sand Hill Road
Building 2, Suite 290
Menlo Park, CA 94025
(c) Citizenship:
IVP III, IVM III, IVP IV & IVM IV: California
SDC, RWD, MJE, NAF, TPT, GYY: United States
(d) Title of Class of Securities:
Common Stock
(e) CUSIP Number: 038181
Item 3. If this statement is filed pursuant to Rules 13d-1(b),or 13d-2(b), check
whether the person filing is a:
Not applicable
Item 4. Ownership
See Rows 5 through 11 of cover pages
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 [X].
Instruction. Dissolution of a group requires a response to this item.
Page 12 of 15 Pages
<PAGE>
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
[The following certification shall be included if the statement is 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 acquired in the ordinary course of
business and 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 purpose or effect.]
[EXHIBITS]
[A: Joint Filing Statement]
Page 13 of 15 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: January 19, 1998
INSTITUTIONAL VENTURE PARTNERS III INSTITUTIONAL VENTURE MANAGEMENT III
By its General Partner,
Institutional Venture Management III
- ---------------------------------- ----------------------------------
Samuel D. Colella, General Partner Samuel D. Colella, General Partner
INSTITUTIONAL VENTURE PARTNERS IV INSTITUTIONAL VENTURE MANAGEMENT IV
By its General Partner,
Institutional Venture Management IV
- -------------------------------- --------------------------------
Samuel D. Colella, General Partner Samuel D. Colella, General Partner
- --------------------------------
Samuel D. Colella
- --------------------------------
Reid W. Dennis
- --------------------------------
Mary Jane Elmore
- --------------------------------
Norman A. Fogelsong
- --------------------------------
T. Peter Thomas
- --------------------------------
Geoffrey Y. Yang
Page 14 of 15 Pages
<PAGE>
EXHIBIT A
JOINT FILING STATEMENT
Pursuant to Rule 13d-1(f)(1), we, the undersigned, hereby express our
agreement that the attached Schedule 13G is filed on behalf of each of us.
Date: January 19, 1998
INSTITUTIONAL VENTURE PARTNERS III INSTITUTIONAL VENTURE MANAGEMENT III
By its General Partner,
Institutional Venture Management III
- ---------------------------------- ----------------------------------
Samuel D. Colella, General Partner Samuel D. Colella, General Partner
INSTITUTIONAL VENTURE PARTNERS IV INSTITUTIONAL VENTURE MANAGEMENT IV
By its General Partner,
Institutional Venture Management IV
- ---------------------------------- ----------------------------------
Samuel D. Colella, General Partner Samuel D. Colella, General Partner
- --------------------------------
Samuel D. Colella
- --------------------------------
Reid W. Dennis
- --------------------------------
Mary Jane Elmore
- --------------------------------
Norman A. Fogelsong
- --------------------------------
T. Peter Thomas
- --------------------------------
Geoffrey Y. Yang
Page 15 of 15 Pages
