SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Schedule 13G
(Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c)
AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b)
(Amendment No.__)*
CORSAIR COMMUNICATIONS, INC.
- --------------------------------------------------------------------------------
(Name of Issuer)
Common Stock
- --------------------------------------------------------------------------------
(Title of Class of Securities)
220406102
- --------------------------------------------------------------------------------
(CUSIP Number)
September 14, 1999
- --------------------------------------------------------------------------------
(Date of Event which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] Rule 13d-1(d)
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.
The information required on 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 pages)
Page 1 of 22 Pages
Exhibit Index Contained on Page 19
<PAGE>
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CUSIP NO. 220406102 13G Page 2 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Management II, L.P. ("ICM2")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 415,084 shares, of which 304,332
SHARES shares are directly owned by
BENEFICIALLY Integral Capital Partners II, L.P.
OWNED BY EACH ("ICP2") and 110,752 shares are
REPORTING directly owned by Integral Capital
PERSON Partners International II, C.V.
WITH ("ICPI2"). ICM2 is the general
partner of ICP2 and the investment
general partner of ICPI2.
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
415,084 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
415,084 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.32%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 3 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Management III, L.P. ("ICM3")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 169,397 shares, of which 137,872
SHARES shares are directly owned by
BENEFICIALLY Integral Capital Partners III, L.P.
OWNED BY EACH ("ICP3") and 31,525 shares are
REPORTING directly owned by Integral Capital
PERSON Partners International III, L.P.
WITH ("ICPI3"). ICM3 is the general
partner of ICP3 and the investment
general partner of ICPI3.
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
169,397 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
169,397 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.95%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 4 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Management IV, LLC ("ICM4")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited liability company)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 309,350 shares which are directly
SHARES owned by Integral Capital Partners
BENEFICIALLY IV, L.P. ("ICP4"). ICM4 is the
OWNED BY EACH general partner of ICP4.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
309,350 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
309,350 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 1.73%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* OO
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 5 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners NBT, LLC ("Integral NBT")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited liability company)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 1,450 shares which are directly
SHARES owned by Integral Capital Partners
BENEFICIALLY IV MS Side Fund, L.P.
OWNED BY EACH ("Side Fund"). Integral NBT is the
REPORTING general partner of Side Fund.
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
1,450 shares (see response to Item
6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,450 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.008%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* OO
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 6 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners II, L.P. ("ICP2")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 304,332 shares are directly owned
SHARES by ICP2. Integral Capital
BENEFICIALLY Management II, L.P. is the general
OWNED BY EACH partner of ICP2.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
304,332 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
304,332 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 1.70%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
- --------------------------------------------------------------------------------
CUSIP NO. 220406102 13G Page 7 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners International II, C.V. ("ICPI2")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Netherlands Antilles (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 110,752 shares are directly owned
SHARES by ICPI2. Integral Capital
BENEFICIALLY Management II, L.P. is the
OWNED BY EACH investment general partner of
REPORTING ICPI2.
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
110,752 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
110,752 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.62%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 8 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners III, L.P. ("ICP3")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 137,872 shares are directly owned
SHARES by ICP3. Integral Capital
BENEFICIALLY Management III, L.P. is the general
OWNED BY EACH partner of ICP3.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
137,872 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
137,872 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.78%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 9 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners International III, L.P. ("ICPI3")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Cayman Islands (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 31,525 shares are directly owned by
SHARES ICPI3. Integral Capital Management
BENEFICIALLY III, L.P. is the investment general
OWNED BY EACH partner of ICPI3.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
31,525 shares (see response to Item
6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
31,525 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.18%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 10 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners IV, L.P. ("ICP4")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 309,350 shares are directly owned
SHARES by ICP4. Integral Capital
BENEFICIALLY Management IV, LLC is the general
OWNED BY EACH partner of ICP4.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
309,350 shares (see response to
Item 6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
309,350 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 1.73%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
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CUSIP NO. 220406102 13G Page 11 of 22 Pages
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Integral Capital Partners IV MS Side Fund, L.P.
("Side Fund")
- --------------------------------------------------------------------------------
2 CHECK APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ] (b) [X]
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware (limited partnership)
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
--------- ---------------------------------------
NUMBER 6 SHARED VOTING POWER
OF 1,450 shares are directly owned by
SHARES Side Fund. Integral Capital
BENEFICIALLY Partners NBT, LLC is the general
OWNED BY EACH partner of Side Fund.
REPORTING
PERSON
WITH
--------- ---------------------------------------
7 SOLE DISPOSITIVE POWER -0-
--------- ---------------------------------------
8 SHARED DISPOSITIVE POWER
1,450 shares (see response to Item
6)
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,450 shares
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN SHARES*
[ ]
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.008%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
Page 12 of 22
ITEM 1(a). NAME OF ISSUER:
Corsair Communications
ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
3408 Hillview Avenue
Palo Alto, CA 94304
ITEM 2(a), (b), (c). NAME OF PERSON FILING, ADDRESS OF PRINCIPAL BUSINESS
OFFICE OR, IF NONE, RESIDENCE, AND CITIZENSHIP:
This statement is being filed by Integral Capital Management
II, L.P., a Delaware limited partnership ("ICM2"), Integral Capital Management
III, L.P., a Delaware limited partnership ("ICM3"), Integral Capital Management
IV, LLC, a Delaware limited liability company ("ICM4") and Integral Capital
Partners NBT, LLC, a Delaware limited liability company ("Integral NBT"). The
principal business address of ICM2, ICM3, ICM4 and Integral NBT is 2750 Sand
Hill Road, Menlo Park, California 94025.
ICM2 is the general partner of Integral Capital Partners II,
L.P., a Delaware limited partnership ("ICP2"), and the investment general
partner of Integral Capital Partners International II C.V., a Netherlands
Antilles limited partnership ("ICPI2"). ICM3 is the general partner of Integral
Capital Partners III, L.P., a Delaware limited partnership ("ICP3"), and the
investment general partner of Integral Capital Partners International III, L.P.,
a Cayman Islands exempted limited partnership ("ICPI3"). ICM4 is the general
partner of Integral Capital Partners IV, L.P., a Delaware limited partnership
("ICP4"). Integral NBT is the general partner of Integral Capital Partners IV MS
Side Fund, L.P., a Delaware limited partnership ("Side Fund"). With respect to
ICM2, ICM3, ICM4 and Integral NBT, this statement relates only to ICM2's,
ICM3's, ICM4's and Integral NBT's indirect, beneficial ownership of shares of
Common Stock of the Issuer (the "Shares"). The Shares have been purchased by
ICP2, ICPI2, ICP3, ICPI3, ICP4 and Side Fund, and none of ICM2, ICM3, ICM4 or
Integral NBT, directly or otherwise hold any Shares. Management of the business
affairs of ICM2, ICM3, ICM4 and Integral NBT, including decisions respecting
disposition and/or voting of the Shares, resides in a majority of the general
partners or managers of ICM2, ICM3, ICM 4 and Integral NBT, respectively such
that no single general partner or manager of ICM2, ICM3, ICM4 or Integral NBT
has voting and/or dispositive power of the Shares.
ITEM 2(d). TITLE OF CLASS OF SECURITIES:
Common Stock
ITEM 2(e). CUSIP NUMBER:
220406102
<PAGE>
Page 13 of 22
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), or 13d-2(b) or
(c), CHECK WHETHER THE PERSON FILING IS A:
(a) [ ] Broker or dealer registered under Section 15 of the Exchange
Act.
(b) [ ] Bank as defined in Section 3(a)(6) of the Exchange Act.
(c) [ ] Insurance company as defined in Section 3(a)(19) of the
Exchange Act.
(d) [ ] Investment company registered under Section 8 of the
Investment Company Act.
(e) [ ] An investment adviser in accordance with Rule
13d-1(b)(1)(ii)(E);
(f) [ ] An employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F);
(g) [ ] A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);
(h) [ ] A savings association as defined in Section 3(b) of the
Federal Deposit Insurance Act;
(i) [ ] A church plan that is excluded from the definition of an
investment company under
Section 3(c)(14) of the Investment Company Act;
(j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
If this statement is filed pursuant to Rule 13d-1(c), check this box.
[X].
ITEM 4. OWNERSHIP.
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.
A. Integral Capital Management II, L.P.
(a) Amount Beneficially Owned: 415,084
(b) Percent of Class: 2.32%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 415,084
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
415,084
B. Integral Capital Management III, L.P.
(a) Amount Beneficially Owned: 169,397
(b) Percent of Class: 0.95%
(c) Number of shares as to which such person has:
4. Sole power to vote or to direct vote: -0-
5. Shared power to vote or to direct vote: 169,397
6. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
169,397
<PAGE>
Page 14 of 22
C. Integral Capital Management IV, LLC
(a) Amount Beneficially Owned: 309,350
(b) Percent of Class: 1.73%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 309,350
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
309,350
D. Integral Capital Partners NBT, LLC
(a) Amount Beneficially Owned: 1,450
(b) Percent of Class: 0.008%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 1,450
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
1,450
E. Integral Capital Partners II, L.P.
(a) Amount Beneficially Owned: 304,332
(b) Percent of Class: 1.70%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 304,332
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
304,332
F. Integral Capital Partners International II C.V.
(a) Amount Beneficially Owned: 110,752
(b) Percent of Class: 0.62%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 110,752
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
110,752
G. Integral Capital Partners III, L.P.
(a) Amount Beneficially Owned: 137,872
(b) Percent of Class: 0.78%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 137,872
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
137,872
<PAGE>
Page 15 of 22
H. Integral Capital Partners International III, L.P.
(a) Amount Beneficially Owned: 31,525
(b) Percent of Class: 0.18%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 31,525
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
31,525
I. Integral Capital Partners IV, L.P.
(a) Amount Beneficially Owned: 309,350
(b) Percent of Class: 1.73%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 309,350
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
309,350
J. Integral Capital Partners IV MS Side Fund, L.P.
(a) Amount Beneficially Owned: 1,450
(b) Percent of Class: 0.008%
(c) Number of shares as to which such person has:
1. Sole power to vote or to direct vote: -0-
2. Shared power to vote or to direct vote: 1,450
3. Sole power to dispose or to direct the disposition: -0-
4. Shared power to dispose or to direct the disposition:
1,450
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].
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.
<PAGE>
Page 16 of 22
ITEM 8. IDENTIFICATION AND CLASSIFCATION OF MEMBERS OF THE GROUP.
Not applicable.
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
Not applicable.
ITEM 10. CERTIFICATION.
By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were not acquired and are not held
for the purpose of or with the effect of changing or influencing the control of
the issuer of the securities and were not acquired and are not held in
connection with or as a participant in any transaction having that purpose or
effect.
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.
Dated: September 22, 1999
INTEGRAL CAPITAL MANAGEMENT II, L.P.
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL MANAGEMENT III, L.P.
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL MANAGEMENT IV, LLC
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
INTEGRAL CAPITAL PARTNERS NBT, LLC
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
<PAGE>
Page 17 of 22
INTEGRAL CAPITAL PARTNERS II, L.P.
By Integral Capital Management II, L.P.,
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS INTERNATIONAL
II C.V.
By Integral Capital Management II, L.P.,
its Investment General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS III, L.P.
By Integral Capital Management III,
L.P., its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS INTERNATIONAL
III, L.P.
By Integral Capital Management III,
L.P., its Investment General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS IV, L.P.
By Integral Capital Management IV, LLC,
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
<PAGE>
Page 18 of 22
INTEGRAL CAPITAL PARTNERS IV MS SIDE
FUND, L.P.
By Integral Capital Partners NBT, LLC
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
<PAGE>
Page 19 of 22
EXHIBIT INDEX
Found on
Sequentially
Exhibit Numbered Page
- ------- -------------
Exhibit A: Agreement of Joint Filing 20
<PAGE>
Page 20 of 22
EXHIBIT A
Agreement of Joint Filing
The undersigned hereby agree that they are filing jointly
pursuant to Rule 13d-1(k)(1) of the Act the statement dated September 22, 1999
containing the information required by Schedule 13G, for the 895,281 Shares of
capital stock of Corsair Communications, Inc. held by Integral Capital Partners
II, L.P., a Delaware limited partnership, Integral Capital Partners
International II C.V., a Netherlands Antilles limited partnership, Integral
Capital Partners III, L.P., a Delaware limited partnership, Integral Capital
Partners International III, L.P., a Cayman Islands exempted limited partnership,
Integral Capital Partners IV, L.P., a Delaware limited partnership, and Integral
Capital Partners IV MS Side Fund, L.P., a Delaware limited partnership.
Date: September 22, 1999
INTEGRAL CAPITAL MANAGEMENT II, L.P.
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL MANAGEMENT III, L.P.
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL MANAGEMENT IV, LLC
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
INTEGRAL CAPITAL PARTNERS NBT, LLC
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
<PAGE>
Page 21 of 22
INTEGRAL CAPITAL PARTNERS II, L.P.
By Integral Capital Management II, L.P.,
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS INTERNATIONAL
II C.V.
By Integral Capital Management II, L.P.,
its Investment General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS III, L.P.
By Integral Capital Management III,
L.P., its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS INTERNATIONAL
III, L.P.
By Integral Capital Management III,
L.P., its Investment General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a General Partner
INTEGRAL CAPITAL PARTNERS IV, L.P.
By Integral Capital Management IV, LLC,
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
<PAGE>
Page 22 of 22
INTEGRAL CAPITAL PARTNERS IV MS SIDE
FUND, L.P.
By Integral Capital Partners NBT, LLC
its General Partner
By /s/ Pamela K. Hagenah
--------------------------------------
Pamela K. Hagenah
a Manager
