LEGATO SYSTEMS INC
SC 13G/A, 1997-02-13
PREPACKAGED SOFTWARE
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<PAGE>   1

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                               (AMENDMENT NO. 1)*


                              Legato Systems, Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                     Common Stock, par value $.0001 per share
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                  524651 10 6
                         ------------------------------
                                 (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).

<PAGE>   2

- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6                                      Page 2 of 10 Pages
            -----------                                          ---  ----
- -------------------------                                  ---------------------

- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Greylock Capital Limited Partnership
- --------------------------------------------------------------------------------
2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                   (a) [  ]

                                                                   (b) [  ]
- --------------------------------------------------------------------------------
3       SEC USE ONLY

- --------------------------------------------------------------------------------
4       CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                   - 0 -
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                      - 0 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                     - 0 -
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                     - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        - 0 -
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        0%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        PN
- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!



<PAGE>   3

- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6                                      Page 3 of 10 Pages
            -----------                                          ---  ----
- -------------------------                                  ---------------------

- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Henry F. McCance
- --------------------------------------------------------------------------------
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
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                   - 92,380 -
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                         - 0 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                     - 92,380 -
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                        - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        - 92,380 -
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        0.6%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        IN
- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!


<PAGE>   4

- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6                                      Page 4 of 10 Pages
            -----------                                          ---  ----
- -------------------------                                  ---------------------

- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Howard E. Cox, Jr.
- --------------------------------------------------------------------------------
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
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                  less than 5% of the shares of Common Stock 
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                         - 0 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                    less than 5% of the shares of Common Stock 
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                        - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

         less than 5% of the shares of Common Stock 
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        less than 5%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        IN
- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>   5


Item 1.
        (a)  Name of Issuer:
             --------------

             Legato Systems, Inc.

        (b)  Address of Issuer's Principal Executive Office:
             ----------------------------------------------

             3145 Porter Drive
             Palo Alto, CA 94304

Item 2.
        (a)  Name of Person Filing:
             ---------------------

             Greylock Capital Limited Partnership ("GCLP") and Messrs. Howard
             E. Cox, Jr. and Henry F. McCance, the Co-Managing General Partners
             of GCLP (the "Co-Managing General Partners").

        (b)  Address of Principal Business Office or, if none, Residence:
             -----------------------------------------------------------

             The address of the reporting persons is:

             One Federal Street
             Boston, Massachusetts 02110

        (c)  Citizenship:
             -----------

             GCLP is a limited partnership organized under the laws of the
             State of Delaware.  Each of the Co-Managing General Partners
             is a citizen of the United States.

        (d)  Title of Class of Securities:
             ----------------------------

             Common Stock, par value $.0001 per share (the "Common 
             Stock").

        (e)  CUSIP Number:
             ------------

             524651 10 6

Item 3.      Description of Person Filing:
             -----------------------------

             Not applicable.



                               Page 5 of 10 pages

<PAGE>   6



Item 4.    Ownership(1):
           -------------

       (a)  Amount Beneficially Owned:
            -------------------------

            GCLP does not beneficially own any shares of Common Stock. 
            Mr. Cox may be deemed to beneficially own less than five percent of
            the shares of Common Stock and Mr. McCance may be deemed to
            beneficially own 92,380 shares of Common Stock.

       (b)  Percent of Class:
            ----------------

            GCLP:                     0%
            Mr. Cox                   less than 5%
            Mr. McCance:              0.6%

       (c)  Number of shares as to which person has:
            ---------------------------------------

           (i) sole voting power; (ii) shared voting power; (iii) sole
           dispositive power; (iv) shared dispositive power:

           GCLP does not have any power to vote or dispose of any shares of
           Common Stock. Mr. Cox may be deemed to have sole power to vote and
           dispose of less than five percent of the shares of Common Stock and
           Mr. McCance may be deemed to have sole power to vote and dispose of
           92,380 shares of Common Stock.


Item 5.    Ownership of Five Percent or Less of a Class:
           ---------------------------------------------

           This statement is being filed to report the fact that as of
           the date hereof the reporting persons have ceased to be
           beneficial owners of more than five percent of the class of
           securities.

Item 6.    Ownership of More Than Five Percent on Behalf of Another Person:
           ----------------------------------------------------------------

           Not applicable.



- --------
    (1)        As of December 31, 1996.



                               Page 6 of 10 pages

<PAGE>   7




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 10 pages

<PAGE>   8



                                    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 12, 1997


                               GREYLOCK CAPITAL LIMITED PARTNERSHIP


                               By:  /s/ Henry F. McCance
                                    -----------------------------
                                    Henry F. McCance
                                    Co-Managing General Partner

                               /s/ Henry F. McCance
                               ----------------------------------
                               Henry F. McCance


                                               *
                               ----------------------------------
                               Howard E. Cox, Jr.
 
 
                               *By:  /s/ Henry F. McCance
                                    -----------------------------
                                        Henry F. McCance
                                        Attorney-in-fact




     This Schedule 13G was executed by Henry F. McCance pursuant to Powers of
Attorney filed with the Security and Exchange Commission on February 14, 1994 in
connection with a Schedule 13G for Avid Technology, Inc., copies of which are
attached hereto as Exhibit 2, which Powers of Attorney are incorporated herein
by reference.



                               Page 8 of 10 pages


<PAGE>   1


                                                                      EXHIBIT 1
                                                                      ---------
                                   AGREEMENT

     Pursuant to Rule 13(d)-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
Legato Systems, Inc.

     EXECUTED as a sealed instrument this 12th day of February, 1997.


                               GREYLOCK CAPITAL LIMITED PARTNERSHIP


                               By:  /s/ Henry F. McCance
                                    -----------------------------
                                    Henry F. McCance
                                    Co-Managing General Partner

                               /s/ Henry F. McCance
                               ----------------------------------
                               Henry F. McCance

                                               *
                               ----------------------------------
                               Howard E. Cox, Jr.
 
 
                               *By:  /s/ Henry F. McCance
                                    -----------------------------
                                        Henry F. McCance
                                        Attorney-in-fact


                               Page 9 of 10 pages




<PAGE>   1



                                                                     EXHIBIT 2
                                                                     ---------
                                POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Robert P. Henderson and Henry F. McCance
and each of them, with full power to act without the other, his true and lawful
attorney-in-fact, with full power of substitution, to sign any and all
instruments, certificates, agreements and documents that may be necessary,
desirable or appropriate to be executed on behalf of himself as an individual or
in his capacity as a general partner of any partnership, pursuant to section 13
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and any
and all regulations promulgated thereunder, and to file the same, with all
exhibits thereto, and any other documents in connection therewith, with the
Securities and Exchange Commission, and with any other entity when and if such
is mandated by the Exchange Act or by the By-laws of the National Association of
Securities Dealers, Inc., granting unto said attorney-in-fact full power and
authority to do and perform each and every act and thing necessary, desirable or
appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his
substitutes, may lawfully do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 8th
day of February, 1994.

/s/ Howard E. Cox, Jr.                            /s/ William W. Helman
- --------------------------                        -----------------------------
Howard E. Cox, Jr.                                William W. Helman


/s/ Robert P. Henderson                           /s/ William S. Kaiser
- --------------------------                        -----------------------------
Robert P. Henderson                               William S. Kaiser


/s/ Henry F. McCance                              /s/ Daniel S. Gregory
- --------------------------                        -----------------------------
Henry F. McCance                                  Daniel S. Gregory


/s/ David N. Strohm                               /s/ Charles P. Waite
- --------------------------                        -----------------------------
David N. Strohm                                   Charles P. Waite


/s/ Robert L. Evans
- --------------------------
Robert L. Evans


                               Page 10 of 10 pages

<PAGE>   1
                                              EXHIBIT 3
                                              ---------
                                              Previously filed with the
                                              Securities and Exchange Commission
                                              on February 14, 1996
                                              ----------------------------
                                                        OMB APPROVAL
                                              ----------------------------
                                              OMB Number:        3235-0145
                                              Expires:    October 31, 1997
                                              Estimated average burden
                                              hours per response..   14.90
                                              ----------------------------
                                              


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                               (AMENDMENT NO.___)*


                              Legato Systems, Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                     Common Stock, par value $.0001 per share
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                  524651 10 6
                         ------------------------------
                                 (CUSIP Number)

Check the following box if a fee is being paid with this statement [X]. 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).


                               Page 1 of 10 pages
<PAGE>   2


- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6                 13G                  Page 2 OF 10 Pages
            -----------                                          ---  ----
- -------------------------                                  ---------------------



- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Greylock Capital Limited Partnership
- --------------------------------------------------------------------------------
2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                   (a) [  ]

                                                                   (b) [  ]

- --------------------------------------------------------------------------------
3       SEC USE ONLY

- --------------------------------------------------------------------------------
4       CITIZENSHIP OR PLACE OF ORGANIZATION

        Delaware
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                   - 1,160,440 -
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                      - 0 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                     - 1,160,440 -
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                     - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        - 1,160,440 -
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        14.4%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        PN

- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!



<PAGE>   3

- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6               13G                    Page 3 of 10 Pages
            -----------                                            ---  ----
- -------------------------                                  ---------------------



- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Howard E. Cox, Jr.
- --------------------------------------------------------------------------------
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
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                   - 0 -
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                      - 1,160,440 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                     - 0 -
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                     - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        - 1,160,440 -
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        14.4%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        IN

- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!


<PAGE>   4

- -------------------------                                  ---------------------
  CUSIP No. 524651 10 6               13G                    Page 4 of 10 Pages
            -----------                                          ---  ----
- -------------------------                                  ---------------------



- --------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        Henry F. McCance
- --------------------------------------------------------------------------------
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
- --------------------------------------------------------------------------------
                              5   SOLE VOTING POWER

         NUMBER OF                   - 0 -
          SHARES         -------------------------------------------------------
       BENEFICIALLY           6   SHARED VOTING POWER
         OWNED BY
           EACH                      - 1,160,440 -
        REPORTING        -------------------------------------------------------
          PERSON              7   SOLE DISPOSITIVE POWER
           WITH
                                     - 0 -
                         -------------------------------------------------------
                              8   SHARED DISPOSITIVE POWER

                                     - 0 -
- --------------------------------------------------------------------------------
9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        - 1,160,440 -
- --------------------------------------------------------------------------------
10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

- --------------------------------------------------------------------------------
11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

        14.4%
- --------------------------------------------------------------------------------
12      TYPE OF REPORTING*

        IN

- --------------------------------------------------------------------------------
                      *SEE INSTRUCTION BEFORE FILLING OUT!
<PAGE>   5
Item 1.
              (a)  Name of Issuer:
                   --------------

                   Legato Systems, Inc.

              (b)  Address of Issuer's Principal Executive Office:
                   ----------------------------------------------

                   3145 Porter Drive
                   Palo Alto, CA 94304

Item 2.
              (a)  Name of Person Filing:
                   ---------------------

                   Greylock Capital Limited Partnership ("GCLP") (the 
                   "Partnership"), and Messrs. Howard E. Cox, Jr. and Henry F. 
                   McCance, the Co-Managing General Partners of GCLP (the 
                   "Co-Managing General Partners").

              (b)  Address of Principal Business Office or, if none, Residence:
                   -----------------------------------------------------------

                   The address of the reporting persons is:

                   One Federal Street
                   Boston, Massachusetts 02110

              (c)  Citizenship:
                   -----------

                   GCLP is a limited partnership organized under the laws of the
                   State of Delaware.  Each of the Co-Managing General Partners
                   is a citizen of the United States.

              (d)  Title of Class of Securities:
                   ----------------------------

                   Common Stock, par value $.0001 per share (the "Common 
                   Stock").

              (e)  CUSIP Number:
                   ------------

                   524651 10 6

Item 3.            Description of Person Filing:
                   ----------------------------
                   Not applicable.


                               Page 5 to 10 pages

<PAGE>   6
Item 4.       Ownership(1):
              ------------
              (a)  Amount Beneficially Owned:
                   -------------------------

                   GCLP is the record holder of 1,160,440 shares of Common Stock
                   and may be deemed to beneficially own 1,160,440 shares of
                   Common Stock.  As Co-Managing General Partners of GCLP, each
                   of Messrs. Cox and McCance, may be deemed to beneficially own
                   1,160,440 shares of Common Stock.  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 by this statement.

              (b)  Percent of Class:
                   ----------------

                   GCLP:                     14.4%
                   Mr. Cox                   14.4%
                   Mr. McCance:              14.4%

              (c)  Number of shares as to which person has:
                   ---------------------------------------

                   (i) sole voting power; (ii) shared voting power; (iii) sole
                   dispositive power; (iv) shared dispositive power:

                   GCLP may be deemed to have sole power to vote and dispose of
                   1,160,440 shares of Common Stock.  Each of Messrs. Cox and
                   McCance, as Co-Managing General Partners of GCLP, may be
                   deemed to share the power to vote 1,160,440 shares of Common
                   Stock.

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.
              
              
              
- --------
    (1)        As of December 31, 1995.



                               Page 6 to 10 Pages
<PAGE>   7
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 to 10 Pages












<PAGE>   8



                                    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 13, 1996


                               GREYLOCK CAPITAL LIMITED PARTNERSHIP


                               By:                 *
                                     ----------------------------
                                     Henry F. McCance
                                     Co-Managing General Partner

                                              *
                               ----------------------------------
                               Henry F. McCance


                                              *
                               ----------------------------------
                               Howard E. Cox, Jr.
 
 
                               *By:   /s/ Henry F. McCance
                                     ----------------------------
                                          Henry F. McCance
                                          Attorney-in-fact




     This Schedule 13G was executed by Henry F. McCance pursuant to Powers of
Attorney filed with the Security and Exchange Commission on February 14, 1994 in
connection with a Schedule 13G for Avid Technology, Inc., copies of which are
attached hereto as Exhibit 2, which Powers of Attorney are incorporated herein
by reference.



                               Page 8 of 10 pages

<PAGE>   9


                                                                      EXHIBIT 1
                                                                      ---------
                                   AGREEMENT

     Pursuant to Rule 13(d)-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
Legato Systems, Inc.

     EXECUTED as a sealed instrument this 13th day of February, 1996.


                               GREYLOCK CAPITAL LIMITED PARTNERSHIP

                               By:               *
                                   -----------------------------
                                   Henry F. McCance
                                   Co-Managing General Partner

                                             *
                               ---------------------------------
                               Henry F. McCance


                                             *
                               ---------------------------------
                               Howard E. Cox, Jr.
 
 
                               *By:  /s/ Henry F. McCance
                                      -----------------------------
                                      Henry F. McCance
                                             Attorney-in-fact


                               Page 9 of 10 pages



<PAGE>   10



                                                                      EXHIBIT 2
                                                                      ---------
                                POWER OF ATTORNEY

     KNOW ALL MEN BY THESE PRESENTS, that each person whose signatures appears
below hereby constitutes and appoints Robert P. Henderson and Henry F. McCance
and each of them, with full power to act without the other, his true and lawful
attorney-in-fact, with full power of substitution, to sign any and all
instruments, certificates, agreements and documents that may be necessary,
desirable or appropriate to be executed on behalf of himself as an individual or
in his capacity as a general partner of any partnership, pursuant to section 13
of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and any
and all regulations promulgated thereunder, and to file the same, with all
exhibits thereto, and any other documents in connection therewith, with the
Securities and Exchange Commission, and with any other entity when and if such
is mandated by the Exchange Act or by the By-laws of the National Association of
Securities Dealers, Inc., granting unto said attorney-in-fact full power and
authority to do and perform each and every act and thing necessary, desirable or
appropriate, fully to all intents and purposes as he might or could do in
person, thereby ratifying and confirming all that said attorney-in-fact, or his
substitutes, may lawfully do or cause to be done by virtue hereof.

     IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 8th
day of February, 1994.

/s/ Howard E. Cox, Jr.                            /s/ William W. Helman
- --------------------------                        -----------------------------
Howard E. Cox, Jr.                                William W. Helman


/s/ Robert P. Henderson                           /s/ William S. Kaiser
- --------------------------                        -----------------------------
Robert P. Henderson                               William S. Kaiser


/s/ Henry F. McCance                              /s/ Daniel S. Gregory
- --------------------------                        -----------------------------
Henry F. McCance                                  Daniel S. Gregory


/s/ David N. Strohm                               /s/ Charles P. Waite
- --------------------------                        -----------------------------
David N. Strohm                                   Charles P. Waite


/s/ Robert L. Evans
- --------------------------
Robert L. Evans


                               Page 10 of 10 pages


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