<PAGE> 1
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 13d-2(b)
(Amendment No. 3)(1)
Spectralink Corporation
(Name of Issuer)
Common Stock, par value $.01 per share
(Title of Class of Securities)
847580107
(CUSIP Number)
December 31, 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)
[ ] Rule 13d-1(c)
[X] Rule 13d-1(d)
(1) 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. 847580107 13G PAGE 2 OF 16 PAGES
--------------------- ----- -----
(1) NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
MAYFIELD VI INVESTMENT PARTNERS, A CALIFORNIA LIMITED PARTNERSHIP
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF -0-
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 876,379
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH -0-
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
876,379
--------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
876,379
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES* [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.7%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*
PN
---------------------------------------------------------------------
<PAGE> 3
CUSIP NO. 847580107 13G PAGE 3 OF 16 PAGES
--------------------- ----- -----
(1) NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
MAYFIELD VI MANAGEMENT PARTNERS, A CALIFORNIA LIMITED PARTNERSHIP
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF -0-
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 876,379
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH -0-
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
876,379
--------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
876,379
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
SHARES* [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.7%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*
PN
---------------------------------------------------------------------
<PAGE> 4
CUSIP No. 847580107 13G Page 4 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
MAYFIELD ASSOCIATES FUND, A CALIFORNIA LIMITED PARTNERSHIP
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF -0-
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 30,612
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH -0-
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
30,612
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
30,612
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
0.2%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
PN
---------------------------------------------------------------------
<PAGE> 5
CUSIP No. 847580107 13G Page 5 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
F. GIBSON MYERS, JR.
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(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 121,805
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 121,805
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,028,796
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.5%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 6
CUSIP No. 847580107 13G Page 6 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
KEVIN A. FONG
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 75,543
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 75,543
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
982,534
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.2%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 7
CUSIP No. 847580107 13G Page 7 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
WILLIAM D. UNGER
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 76,780
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 76,780
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
983,771
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.3%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 8
CUSIP No. 847580107 13G Page 8 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
WENDELL G. VAN AUKEN, III
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 30,722
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 30,722
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
937,713
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.0%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 9
CUSIP No. 847580107 13G Page 9 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
MICHAEL J. LEVINTHAL
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 76,780
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 76,780
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
983,771
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.3%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 10
CUSIP No. 847580107 13G Page 10 of 16 Pages.
--------------------- ----- -----
(1) NAMES OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
A. GRANT HEIDRICH, III
---------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
---------------------------------------------------------------------
(3) SEC USE ONLY
---------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.
---------------------------------------------------------------------
(5) SOLE VOTING POWER
NUMBER OF 91,355
SHARES --------------------------------------------------------
BENEFICIALLY (6) SHARED VOTING POWER
OWNED BY 906,991
EACH --------------------------------------------------------
REPORTING (7) SOLE DISPOSITIVE POWER
PERSON WITH 91,355
--------------------------------------------------------
(8) SHARED DISPOSITIVE POWER
906,991
---------------------------------------------------------------------
(9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
998,346
---------------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
---------------------------------------------------------------------
(11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.3%
---------------------------------------------------------------------
(12) TYPE OF REPORTING PERSON
IN
---------------------------------------------------------------------
<PAGE> 11
ITEM 1.
(a) NAME OF ISSUER:
Spectralink Corporation
(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
5755 Central Avenue
Boulder, CO 80301
ITEM 2.
(a) NAME OF PERSONS FILING:
Mayfield VI Investment Partners, a California Limited
Partnership
Mayfield VI Management Partners, a California Limited
Partnership
Mayfield Associates Fund, a California Limited Partnership
Kevin A. Fong
Wendell G. Van Auken, III
A. Grant Heidrich, III
F. Gibson Myers, Jr.
William D. Unger
Michael J. Levinthal
(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE:
c/o Mayfield Fund
2800 Sand Hill Road
Menlo Park, CA 94025
(c) CITIZENSHIP:
The entities listed in Item 2(a) are California Limited
Partnerships.
The individuals listed in Item 2(a) are U.S. citizens.
(d) TITLE OF CLASS OF SECURITIES:
Common Stock, par value $.01 per share
(e) CUSIP NUMBER:
847580107
Page 11 of 16 pages.
<PAGE> 12
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b),
CHECK WHETHER THE PERSON FILING IS A:
Not applicable
ITEM 4. OWNERSHIP
The information regarding ownership as set forth in Items 5-9 of Pages
2-10 hereto, is hereby incorporated by reference.
For a summary of total ownership by all Reporting Persons, see Exhibit
2 hereto.
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
[ ].
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 12 of 16 pages.
<PAGE> 13
SIGNATURES
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
Date: February 14, 2000
MAYFIELD VI INVESTMENT PARTNERS
A California Limited Partnership
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Authorized Signatory
MAYFIELD VI MANAGEMENT PARTNERS
A California Limited Partnership
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Authorized Signatory
MAYFIELD ASSOCIATES FUND
A California Limited Partnership
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Authorized Signatory
F. GIBSON MYERS, JR.
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
KEVIN A. FONG
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
WILLIAM D. UNGER
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
WENDELL G. VAN AUKEN, III
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
Page 13 of 16 pages.
<PAGE> 14
MICHAEL J. LEVINTHAL
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
A. GRANT HEIDRICH, III
By: /s/ George A. Pavlov
-------------------------------------------
George A. Pavlov, Attorney In Fact
Page 14 of 16 pages.
<PAGE> 15
EXHIBIT 1
Exhibit 1- "Statement Appointing Designated Filer and Authorized
Signatory" is hereby incorporated by reference to Exhibit B to
the Statement on Schedule 13G dated February 10, 1997.
Page 15 of 16 pages.
<PAGE> 16
EXHIBIT 2
<TABLE>
<CAPTION>
NUMBER OF SHARES NUMBER OF SHARES PERCENT OF CLASS
NAME OF REPORTING PERSON (DIRECT) (4) (INDIRECT) BENEFICIALLY OWNED(1)
- ----------------------------------------------- ---------------- ---------------- ---------------------
<S> <C> <C> <C>
Mayfield VI Investment Partners, 876,379(2) -0- 4.7%
a California Limited Partnership
Mayfield VI Management Partners, a California -0- 876,379(2) 4.7%
Limited Partnership
Mayfield Associates Fund, a California Limited 30,612 -0- 0.2%
Partnership
F. Gibson Myers, Jr. 121,805 906,991(3) 5.5%
Kevin A. Fong 75,543 906,991(3) 5.2%
William D. Unger 76,780 906,991(3) 5.3%
Wendell G. Van Auken, III 30,722 906,991(3) 5.0%
Michael J. Levinthal 76,780 906,991(3) 5.3%
A. Grant Heidrich, III 91,355 906,991(3) 5.3%
Total 1,379,976 7.4%
</TABLE>
(1) The respective percentages set forth in this column were obtained by
dividing the number of shares by the aggregate number of outstanding shares of
Common Stock as reported in the Issuer's Form 10-Q for the quarter ended
September 30, 1999.
(2) Represents shares held of record by Mayfield VI Investment Partners, of
which Mayfield VI Management Partners is the sole General Partner.
(3) Includes 876,379 shares held by Mayfield VI Investment Partners and 30,612
shares held by Mayfield Associates Fund. The individual Reporting Persons listed
are General Partners of Mayfield VI Management Partners, which is the General
Partner of Mayfield VI Investment Partners. The individual Reporting Persons,
except for Mr. Fong, are also General Partners of Mayfield Associates Fund. Mr.
Fong is a limited partner of Mayfield Associates Fund. The individual Reporting
Persons may be deemed to have shared voting and dispositive power over the
shares which are or may be deemed to be beneficially owned by Mayfield VI
Investment Partners and Mayfield Associates Fund but disclaim such beneficial
ownership.
(4) Each individual Reporting Person expressly disclaims that he is the
beneficial owner of any shares which are held by any other individual Reporting
Person in his individual capacity. Shares held directly by the individual
Reporting Persons, other than Mr. Heidrich and than 18,255 shares held by
Mr. Myers, are held by them as trustee.
Page 16 of 16 pages.
