<PAGE> 1
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO.1 )*
ON Technology Corporation
- --------------------------------------------------------------------------------
(Name of Issuer)
Common
- --------------------------------------------------------------------------------
(Title of Class of Securities)
68219P108
- --------------------------------------------------------------------------------
(CUSIP Number)
Check the following box 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 following page(s))
Page 1 of 23 Pages
SEC 1745 (10-85)
<PAGE> 2
CUSIP NO 68219P108. 13G PAGE 2 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON Charles River VI GP Limited Partnership
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
04-3049015
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- --------------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 622,983
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 0
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 622,983
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
622,983
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.6%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- --------------------------------------------------------------------------------
<PAGE> 3
CUSIP NO 68219P108. 13G PAGE 3 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON Charles River Partnership VI
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
04-3049002
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- --------------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 529,538
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 0
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 529,538
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
529,538
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.9%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE> 4
CUSIP NO 68219P108 13G PAGE 4 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Richard M. Burnes, Jr.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 22,347
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 622,983
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 22,347
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
622,983
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
645,330
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.9%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 5
CUSIP NO 68219P108. 13G PAGE 5 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Donald W. Feddersen.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 0
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 622,983
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 0
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
622,983
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
622,983
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.7%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 6
CUSIP NO 68219P108. 13G PAGE 6 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Michael J. Zak.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 9,138
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 622,983
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 9,138
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
622,983
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
632,121
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.8%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 7
CUSIP NO 68219P108. 13G PAGE 7 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING John T. Neises.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 18,684
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 622,983
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 18,684
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
622,983
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
641,667
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.8%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE> 8
SCHEDULE 13G Page 8 of 23 Pages
Item 1: (a) Name of Issuer:
ON Technology Corporation.
(b) Address of Issuer's Principal Executive Offices:
One Cambridge Center
Item 2: (a) Name of Person Filing:
Charles River Partnership VI, Charles River VI GP Limited
Partnership Richard M. Burnes, Jr., Donald W. Feddersen, John
T. Neises and Michael J. Zak. Charles River VI GP Limited
Partnership is the general partner of Charles River Partnership
VI;. Messrs. Burnes, Feddersen, Neises and Zak are the
individual general partners of Charles River Partnership VI GP
Limited Partnership.
(b) Address of Principal Business Office or, if none, Residence:
The address of the principle business office of Charles River
Partnership VI, Charles River VI GP Limited Partnership and each
of Messrs. Burnes, Feddersen, Neises, and Zak is Charles River
Ventures, 1000 Winter Street, Suite 3300, Waltham, MA 02154
(c) Citizenship:
Charles River Partnership VI and Charles River VI GP Limited
Partnership are limited partnerships organized under the laws
of the state of Delaware. Each of Messrs. Burnes, Feddersen,
Neises and Zak is a United States Citizen.
(d) Title of Class of Securities:
Common Stock.
(e) CUSIP Number:
68219P108
Item 3:
Item 4: (a) Amount Beneficially Owned:
Charles River Partnership VI may be deemed to own beneficially
and of record 529,538 shares of Common Stock as of
December 31, 1996. Charles River VI GP Limited Partnership and
Donald W. Feddersen may be deemed to own beneficially and of
record 622,983 shares of Common Stock as of December 31, 1996.
Richard M. Burnes, Jr. may be deemed to own beneficially and
of record 645,330 shares of Common Stock as of December 31,
1996. Michael J. Zak may be deemed to won beneficially and of
record 632,121 shares of Common Stock as of December 31, 1996.
John T. Neises may be deemed
(b) Percent of Class: Charles River Partnership VI - 8.2%;
Charles River VI GP Limited Partnership - 5.6%; Richard M.
Burnes Jr. - 5.6%; Donald W. Feddersen - 5.6%;
Michael J. Zak - 5.6%; and John T. Neises - 5.6%
(based on 10,993,012 shares of Common Stock reported to be
outstanding in the 12/31/96 earnings release).
(c) Number of shares as to which such person has:
(i) sole power to vote or direct the vote: Charles River
Partnership VI: 529,538 shares; Charles River VI GP Limited
Partnership VI-A: 622,983 shares; Mr. Burnes: 22,347 shares;
Mr. Feddersen: 0 shares; Mr. Neises: 18,684 shares;
Mr. Zak: 9,138 shares.
(ii) shared power to vote or to direct the vote: Charles River
Partnership VI: 0 shares; Charles River VI GP Limited
Partnership: 622,983; Mr. Burnes: 622,983 shares;
Mr. Feddersen: 622,983 shares; Mr. Neises: 622,983 shares.
Mr. Zak: 622,983 shares
(iii) sole power to dispose or direct the disposition of: Charles
River Partnership VI: 529,538 shares; Charles River VI GP
Limited Partnership: 622,983 shares; Mr. Burnes: 22,347
shares; Mr. Feddersen: 0 shares; Mr. Neises: 18,684 shares;
Mr. Zak: 9,138 shares.
(iv) shared power to dispose or to direct the disposition of:
Charles River Partnership VI: 0 shares; Charles River VI GP
Limited Partnership: 622,983 shares; Mr. Burnes: 622,983
shares; Mr. Feddersen: 622,983 shares; Mr. Neises: 622,983
shares; Mr. Zak: 622,983 shares
Each of Messrs. Burnes, Feddersen, Neises, and Zak expressly disclaims
beneficial ownership of the 529,538 shares of Common Stock held of record by
Charles River Partnership VI and the 93,445 shares of common stock held of
record by Charles River Partnership VI-A for which he does not have a pecuniary
interest.
<PAGE> 9
SCHEDULE 13G Page 9 of 23 Pages
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> 1
EXHIBIT 1 10 Page of 23 Pages
AGREEMENT
Pursuant to Rule 13d-1 (f) (1) under the Securities and Exchange Act of 1934,
the undersigned hereby agree that only one statement containing the information
required by Schedule 13G need be filed with respects to the ownership by each of
the undersigned of shares of Corporation.
This Agreement may be executed in any number of counterparts, each of which
shall be deemed an original.
Executed this 10th day of February, 1997
Dated: February 10, 1997
Charles River Partnership VI
By: Charles River VI GP Limited Partnership
By: signed____________________
Richard M. Burnes, Jr.
Authorized General Partner
Charles River VI GP Limited Partnership
By: signed____________________
Richard M. Burnes, Jr.
Authorized General Partner
signed__________________________
Richard M. Burnes, Jr.
signed__________________________
Donald W. Feddersen
signed__________________________
John T. Neises
signed__________________________
Michael J. Zak
<PAGE> 1
EXHIBIT 2 Page 11 of 23 Pages
REPORTING PERSON RELATIONSHIPS
On December 31, 1996, Charles River Partnership VI ("CRP VI") was the
registered holder of 529,538 shares of ON Technology Corporation. common stock.
Its "sister" venture capital partnership, Charles River Partnership VI-A ("CRP
VI-A"), was the registered holder of 93,445 shares of ON Technology
Corporation common stock. The general partner of both CRP VI and CRP VI-A is
Charles River VI GP Limited Partnership ("CRP VI GP"). The individual general
partners of CRP VI GP are Richard M. Burnes, Jr., Donald W. Feddersen, John T.
Neises and Michael J. Zak. CRP VI GP and Messrs. Burnes, Feddersen, Neises and
Zak disclaims beneficial ownership of the shares held by CRP VI and CRP VI-A
for which it / he does not have a pecuniary interest.
<PAGE> 1
EXHIBIT 3 PAGE 12 OF 23 PAGES
Previous Paper Filing - December 31, 1995 Year End Filing
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. )*
ON Technology Corporation
- --------------------------------------------------------------------------------
(Name of Issuer)
Common
- --------------------------------------------------------------------------------
(Title of Class of Securities)
68219P108
- --------------------------------------------------------------------------------
(CUSIP Number)
Check the following box if a fee is being paid with this /X/ 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 following page(s))
Page 1 of 5 Pages
SEC 1745 (10-85)
<PAGE> 2
CUSIP NO 68219P108. 13G PAGE 13 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON Charles River VI GP Limited Partnership
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
04-3049015
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- --------------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 1,238,483
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 0
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 1,238,483
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,238,483
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.75%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- --------------------------------------------------------------------------------
<PAGE> 3
CUSIP NO 68219P108. 13G PAGE 14 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON Charles River Partnership VI
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
04-3049002
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- --------------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 1,052,713
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 0
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 1,052,713
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,052,713
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.99%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE> 4
CUSIP NO 68219P108 13G PAGE 15 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Richard M. Burnes, Jr.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 1,825
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 1,238,483
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 1,825
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,238,483
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,240,308
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.77%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 5
CUSIP NO 68219P108. 13G PAGE 16 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Donald W. Feddersen.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 1,825
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 1,238,483
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 1,825
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,238,483
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,240,308
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.77%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 6
CUSIP NO 68219P108. 13G PAGE 17 OF 23 PAGES
- --------------------------------------------------------------------------------
1 NAME OF REPORTING Michael J. Zak.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 750
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 1,238,483
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 750
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,238,483
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,239,233
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.76%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
<PAGE> 7
CUSIP NO 68219P108. 13G PAGE 18 OF 23 PAGES
- -------------------------------------------------------------------------------
1 NAME OF REPORTING John T. Neises.
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
###-##-####
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) / / (b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
NUMBER OF 5 SOLE VOTING POWER
SHARES 1,500
BENEFICIALLY -----------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 1,238,483
REPORTING -----------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 1,500
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
1,238,483
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,239,983
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
11.77%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE> 8
SCHEDULE 13G PAGE 19 OF 23 PAGES
Item 1: (a) Name of Issuer:
ON Technology Corporation.
(b) Address of Issuer's Principal Executive Offices:
One Cambridge Center
Item 2: (a) Name of Person Filing:
Charles River Partnership VI, Charles River VI GP Limited
Partnership Richard M. Burnes, Jr., Donald W. Feddersen,
John T. Neises and Michael J. Zak. Charles River VI GP Limited
Partnership is the general partner of Charles River Partnership
VI;. Messrs. Burnes, Feddersen, Neises and Zak are the
individual general partners of Charles River Partnership VI GP
Limited Partnership.
(b) Address of Principal Business Office or, if none, Residence:
The address of the principle business office of Charles River
Partnership VI, Charles River VI GP Limited Partnership and
each of Messrs. Burnes, Feddersen, Neises, and Zak is Charles
River Ventures, Ten Post Office Square Suite 1330, Waltham, MA
02154
(c) Citizenship:
Charles River Partnership VI and Charles River VI GP Limited
Partnership are limited partnerships organized under the laws
of the state of Delaware. Each of Messrs. Burnes, Feddersen,
Neises and Zak is a United States Citizen.
(d) Title of Class of Securities:
Common Stock.
(e) CUSIP Number:
68219P108
Item 3:
<PAGE> 9
SCHEDULE 13G PAGE 20 OF 23 PAGES
Item 4: (a) Amount Beneficially Owned:
Charles River Partnership VI may be deemed to own beneficially
and of record 1,052,713 shares of Common Stock as of December 31, 1995. Charles
River VI GP Limited Partnership may be deemed to own beneficially 1,238,483
Richard M. Burnes, Jr. may be deemed to owned beneficially 1,240,308 shares of
Common Stock as of December 3, 1995. Donald W. Feddersen may be deemed to own
beneficially 1,240,308 shares of Common Stock as of December 31, 1995. Michael
J. Zak may be deemed to own beneficially 1,239,233 shares of Common Stock as of
December 31, 1995. John T. Neises may be deemed to own beneficially
1,239,983 shares of Common Stock as of December 31, 1995.
(b) Percent of Class: Charles River Partnership VI - 11.75%;
Charles River VI GP Limited Partnership - 9.99%; Richard M.
Burnes Jr. - 11.77%; Donald W. Feddersen - 11.77%;
Michael J. Zak - 11.75%; and John T. Neises - 11.76%
(based on 10,537,861 shares of Common Stock reported to be
outstanding in the 12/31/95 earnings release).
(c) Number of shares as to which such person has:
(i) sole power to vote or direct the vote: Charles River
Partnership VI: 1,052,713shares; Charles River VI GP Limited
Partnership: 1,238,483 shares; Mr. Burnes: 1,825 shares;
Mr. Feddersen: 1,825 shares; Mr. Neises: 1,500 shares;
Mr. Zak: 750 shares.
(ii) shared power to vote or to direct the vote: Charles River
Partnership VI: 0 shares; Charles River VI GP Limited
Partnership: 1,238,483 Mr. Burnes: 1,238,483 shares;
Mr. Feddersen: 1,238,483 shares; Mr. Neises: 1,238,483 shares.
Mr. Zak: 1,238,483 shares
(iii) sole power to dispose or direct the disposition of:.. :
1,052,713shares; Charles River VI GP Limited Partnership:
1,238,483 shares; Mr. Burnes: 1,825 shares; Mr. Feddersen:
1,825 shares; Mr. Neises: 1,500 shares; Mr. Zak: 750 shares.
(iv) shared power to dispose or to direct the disposition of:
Charles River Partnership VI: 0 shares; Charles River VI GP
Limited Partnership: 1,238,483 shares; Mr. Burnes: 1,238,483
shares; Mr. Feddersen: 1,238,483 shares; Mr. Neises: 1,238,483
shares; Mr. Zak: 1,238,483 shares
Each of Messrs. Burnes, Feddersen, Neises, and Zak expressly disclaims
beneficial ownership of the 1,052,713 shares of Common Stock held of record by
Charles River Partnership VI and the 185,770 shares of common stock held of
record by Charles River Partnership VI-A for which he does not ha ve a pecuniary
interest..
<PAGE> 10
SCHEDULE 13G PAGE 21 OF 23 PAGES
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> 11
EXHIBIT 1 13G PAGE 22 of 23 PAGES
AGREEMENT
Pursuant to Rule 13d-1 (f) (1) under the Securities and Exchange Act of
1934, the undersigned hereby agree that only one statement containing the
information required by Schedule 13G need be filed with respects to the
ownership by each of the undersigned of shares of Corporation.
This Agreement may be executed in any number of counterparts, each of which
shall be deemed an original.
Executed this 9th day of February, 1996
Dated: February 9, 1996
Charles River Partnership VI
By: Charles River VI GP Limited Partnership
By: signed____________________
Richard M. Burnes, Jr.
Authorized General Partner
Charles River VI GP Limited Partnership
By: signed____________________
Richard M. Burnes, Jr.
Authorized General Partner
signed__________________________
Richard M. Burnes, Jr.
signed__________________________
Donald W. Feddersen
signed__________________________
John T. Neises
signed__________________________
Michael J. Zak
<PAGE> 12
EXHIBIT 2 13G PAGE 23 of 23 Pages
REPORTING PERSON RELATIONSHIPS
On December 31, 1995, Charles River Partnership VI ("CRP VI") was the
registered holder of 1,052,713 shares of ON Technology Corporation. common
stock. Its "sister" venture capital partnership, Charles River Partnership VI-A
("CRP VI-A"), was the registered holder of 185,770 shares of ON Technology
Corporation common stock. The general partner of both CRP VI and CRP VI-A is
Charles River VI GP Limited Partnership ("CRP VI GP"). The individual general
partners of CRP VI GP are Richard M. Burnes, Jr., Donald W. Feddersen, John T.
Neises and Michael J. Zak. CRP VI GP and Messrs. Burnes, Feddersen, Neises and
Zak disclaims beneficial ownership of the shares held by CRP VI and CRP VI-A
for which it / he does not have a pecuniary interest.
