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OMB APPROVAL
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OMB Number: 3235-0145
Expires: 31-Aug-99
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. _________)*
NetScout Systems, Inc.
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(Name of Issuer)
Common Stock Par Value $.01
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(Title of Class of Securities)
64115T 10 4
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(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).
SEC 1745 (10-88)
Page 1
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CUSIP NO. 64115T 10 4 13G PAGE 2
1 NAME OF REPORTING PERSON S.S. OR I.R.S IDENTIFICATION NO. OF ABOVE PERSON
TA/Advent VIII L.P. 04-3334380
Advent Atlantic & Pacific III L.P. 04-3299318
TA Executives Fund LLC 04-3398534
TA Investors LLC 04-3395404
2 CHECK THE BOX IF A MEMBER OF A GROUP*
(a) /X/
(b) / /
3 SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION
TA/Advent VIII L.P. Delaware
Advent Atlantic & Pacific III L.P. Delaware
TA Executives Fund LLC Delaware
TA Investors LLC Delaware
5 SOLE VOTING POWER
NUMBER OF TA/Advent VIII L.P. 5,298,950
Advent Atlantic & Pacific III L.P. 993,561
TA Executives Fund LLC 100,680
SHARES TA Investors LLC 105,979
6 SHARED VOTING POWER
BENEFICIALLY N/A
OWNED BY
7 SOLE DISPOSITIVE POWER
EACH
TA/Advent VIII L.P. 5,298,950
REPORTING Advent Atlantic & Pacific III L.P. 993,561
TA Executives Fund LLC 100,680
TA Investors LLC 105,979
8 SHARED DISPOSITIVE POWER
WITH N/A
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
TA/Advent VIII L.P. 5,298,950
Advent Atlantic & Pacific III L.P. 993,561
TA Executives Fund LLC 100,680
TA Investors LLC 105,979
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
TA/Advent VIII L.P. 20.58%
Advent Atlantic & Pacific III L.P. 3.86%
TA Executives Fund LLC 0.39%
TA Investors LLC 0.41%
12 TYPE OF REPORTING PERSON
Each entity is a Limited Partnership
SEE INSTRUCTION BEFORE FILLING OUT!
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ATTACHMENT TO FORM 13G PAGE 3
ITEM 1 (a) NAME OF ISSUER: NetScout Systems, Inc.
ITEM 1 (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
4 Technology Park Drive
Westford, MA 01886
ITEM 2 (a) NAME OF PERSON FILING:
TA/Advent VIII L.P.
Advent Atlantic & Pacific III L.P.
TA Executives Fund LLC
TA Investors LLC.
ITEM 2 (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE:
c/o TA Associates
125 High Street, Suite 2500
Boston, MA 02110
ITEM 2 (c) CITIZENSHIP: Not Applicable
ITEM 2 (d) TITLE AND CLASS OF SECURITIES: Common
ITEM 2 (e) CUSIP NUMBER: 64115T 10 4
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
ITEM 4 (a) AMOUNT BENEFICIALLY OWNED: COMMON STOCK
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TA/Advent VIII L.P. 5,298,950
Advent Atlantic & Pacific III L.P. 993,561
TA Executives Fund LLC 100,680
TA Investors LLC 105,979
ITEM 4 (b) PERCENT OF CLASS PERCENTAGE
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TA/Advent VIII L.P. 20.58%
Advent Atlantic & Pacific III L.P 3.86%
TA Executives Fund LLC 0.39%
TA Investors LLC 0.41%
ITEM 4 (c) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:
(I) SOLE POWER TO VOTE OR DIRECT THE VOTE: COMMON STOCK
TA/Advent VIII L.P. 5,298,950
Advent Atlantic & Pacific III L.P 993,561
TA Executives Fund LLC 100,680
TA Investors LLC 105,979
(II) SHARED POWER TO VOTE OR DIRECT THE VOTE: N/A
(III) SOLE POWER TO DISPOSE OR DIRECT THE DISPOSITION: COMMON STOCK
TA/Advent VIII L.P. 5,298,950
Advent Atlantic & Pacific III L.P 993,561
TA Executives Fund LLC 100,680
TA Investors LLC 105,979
(IV) SHARED POWER TO DISPOSE OR DIRECT THE DISPOSITION N/A
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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 THAT ACQUIRED .
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY:
Not Applicable
ITEM 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:
This schedule 13G is filed pursuant to Rule 13d-1 (c). For the
agreement of group members to a joint filing, see below.
ITEM 9 NOTICE OF DISSOLUTION OF GROUP: Not Applicable
ITEM 10 CERTIFICATION: Not Applicable
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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.
2/14/00
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Date
/s/ Katherine S. Cromwell
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Signature
Managing Director
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Name/Title
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AGREEMENT FOR JOINT FILING
TA/Advent VIII L.P., Advent Atlantic and Pacific III L.P., TA Executives Fund
LLC and TA Investors LLC, hereby agree that TA Associates shall file with the
Securities and Exchange Commission a joint schedule 13G on behalf of the
above-named parties concerning their beneficial ownership of NetScout Systems,
Inc.
Dated:
TA/ADVENT VIII L.P.
By: TA Associates VIII LLC, its General Partner
By: TA Associates, Inc. its Manager
By:
Katherine S. Cromwell, Managing Director
ADVENT ATLANTIC & PACIFIC III L.P.
By: TA Associates AAP III Partners L.P., its General Partner
By: TA Associates, Inc. its General Partner
By:
Katherine S. Cromwell, Managing Director
TA EXECUTIVES FUND LLC
By: TA Associates, Inc., its Manager
By:
Katherine S. Cromwell, Managing Director
TA INVESTORS LLC
By: TA Associates, Inc., its Manager
By:
Katherine S. Cromwell, Managing Director