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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. 2)
Giga-Tronics
(Name of Issuer)
Common Stock
(Title of Class of Securities)
375175106
(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:
/_X_/ Rule 13d-2(b)
* 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).
Potential persons who are to respond to the collection of information contained
in this form are not required to respond unless the form displays a currently
valid OMB control number.
SEC 1745 (3-98) Page 1 of 10
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CUSIP No. 375175106 13G Page 2 of 10
Pages
- ----------------------------------------------------------------
1 NAME OF REPORTING PERSONS
IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
RS Investment Management Co. LLC
- ----------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a)/ X /
(b)/ /
- ----------------------------------------------------------------
3 SEC USE ONLY
- ----------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- ----------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES -0-
BENEFICIALLY ---------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH -323,772-
REPORTING ---------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH -0-
---------------------------------------
8 SHARED DISPOSITIVE POWER
-323,772-
- ----------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-323,772-
- ----------------------------------------------------------------
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
Instructions)
- ----------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
7.4%
- ----------------------------------------------------------------
12 TYPE OF REPORTING PERSON (See Instructions)
OO, HC
- ----------------------------------------------------------------
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CUSIP No. 375175106 13G Page 3 of 10
Pages
- ----------------------------------------------------------------
1 NAME OF REPORTING PERSONS
IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
RS Investment Management, L.P.
- ----------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a)/ X /
(b)/ /
- ----------------------------------------------------------------
3 SEC USE ONLY
- ----------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ----------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES -0-
BENEFICIALLY ---------------------------------------
OWNED BY 6 SHARED VOTING POWER
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 IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
Instructions)
- ----------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0.0%
- ----------------------------------------------------------------
12 TYPE OF REPORTING PERSON (See Instructions)
IA, PN
- ----------------------------------------------------------------
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CUSIP No. 375175106 13G Page 4 of 10
Pages
- ----------------------------------------------------------------
1 NAME OF REPORTING PERSONS
IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
RS Value Group LLC
- ----------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a)/ X /
(b)/ /
- ----------------------------------------------------------------
3 SEC USE ONLY
- ----------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
- ----------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES -0-
BENEFICIALLY ---------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH -323,772-
REPORTING ---------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH -0-
---------------------------------------
8 SHARED DISPOSITIVE POWER
-323,772-
- ----------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-323,772-
- ----------------------------------------------------------------
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
Instructions)
- ----------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
7.4%
- ----------------------------------------------------------------
12 TYPE OF REPORTING PERSON (See Instructions)
IA, OO
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CUSIP No. 375175106 13G Page 5 of 10
Pages
- ----------------------------------------------------------------
1 NAME OF REPORTING PERSONS
IRS IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
The RS Orphan Fund, L.P.
- ----------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a)/ X /
(b)/ /
- ----------------------------------------------------------------
3 SEC USE ONLY
- ----------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
California
- ----------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES -0-
BENEFICIALLY ---------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH -238,772-
REPORTING ---------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH -0-
---------------------------------------
8 SHARED DISPOSITIVE POWER
-238,772-
- ----------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
-238,772-
- ----------------------------------------------------------------
10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
Instructions)
- ----------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
5.5%
- ----------------------------------------------------------------
12 TYPE OF REPORTING PERSON (See Instructions)
PN
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CUSIP No. 375175106 13G Page 6 of 10 Pages
ITEM 1.
(a) The name of the issuer is Giga-Tronics (the
"Issuer").
(b) The principal executive office of the Issuer is located at
4650 NORRIS CANYON ROAD, SAN RAMON, CA 94583.
ITEM 2.
(a-c) See Annex I for information on the persons filing this statement
(collectively, the "Filers").
(d) This statement relates to shares of common stock of the Issuer (the
"Stock").
(e) The CUSIP number of the Stock is 375175106.
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CUSIP No. 375175106 13G Page 7 of 10 Pages
ITEM 3. If this statement is filed pursuant to rule 240.13d-1(b) or 240.13d-
2(b) or (c), check whether the person filing is a:
(a) ___ Broker or dealer registered under section 15 of the Act (15
U.S.C. 78o).
(b) ___ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c) ___ Insurance company as defined in section 3(a)(19) of the Act
(15 U.S.C. 78c).
(d) ___ Investment company registered under section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8).
(e) ___ An investment adviser in accordance with 240.13d-
1(b)(1)(ii)(E).
(f) ___ An employee benefit plan or endowment fund in accordance with
240.13d-1(b)(1)(ii)(F).
(g) ___ A parent holding company or control person in accordance with
240.13d-1(b)(1)(ii)(G)
(h) ___ A savings association as defined in section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813).
(i) ___ A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the Investment Company Act of 1940
(15 U.S.C. 80a-3).
(j) _X_ Group, in accordance with section 240.13d-1(b)(1)(ii)(J)
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CUSIP No. 375175106 13G Page 8 of 10 Pages
ITEM 4. OWNERSHIP
See Items 5-9 and 11 on the cover page for each Filer.
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
RS Value Group LLC is a registered investment adviser whose clients
have the right to receive or the power to direct the receipt of dividends
from, or the proceeds from the sale of, the Stock. No client other than
The RS Orphan Fund, L.P. owns greater than 5% of the Stock.
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CUSIP No. 375175106 13G Page 9 of 10 Pages
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
RS Investment Management, L.P. is a registered investment adviser. RS
Investment Management Co. LLC is the General Partner of RS Investment
Management, L.P. RS Value Group LLC is a registered investment adviser. RS
Investment Management Co. LLC is the Managing Member of RS Value Group LLC.
The RS Orphan Fund, L.P. is an investment partnership. RS Value Group LLC
is the General Partner of The RS Orphan Fund, L.P.
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 acquired and are held in the ordinary course
of business and 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: February 8, 2000
RS INVESTMENT MANAGEMENT CO. LLC
By: /s/ _______________________
G. Randall Hecht
Chief Executive Officer
RS INVESTMENT MANAGEMENT, L.P.
By: RS Investment Management Co. LLC
By: /s/ _______________________
G. Randall Hecht
Chief Executive Officer
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CUSIP No. 375175106 13G Page 10 of 10 Pages
EXHIBIT A
JOINT FILING AGREEMENT
The undersigned hereby agree that they are filing this statement jointly
pursuant to Rule 13d-1(f)(1). Each of them is responsible for the timely
filing
of the Schedule 13G and any amendments thereto, and for the completeness and
accuracy of the information concerning such person contained therein; but none
of them is responsible for the completeness or accuracy of the information
concerning the other persons making the filing, unless such person knows or has
reason to believe that such information is accurate.
Dated: February 8, 2000
RS INVESTMENT MANAGEMENT CO. LLC
By: /s/ _______________________
G. Randall Hecht
Chief Executive Officer
RS INVESTMENT MANAGEMENT, L.P.
By: RS Investment Management Co. LLC
By: /s/ _______________________
G. Randall Hecht
Chief Executive Officer
Annex I
This Annex identifies certain entities which may be filing parties of the
attached Schedule or which may be referred to in the filing.
The principal office and principal place of business of the following entities
is 388 Market Street, Suite 200, San Francisco, CA 94111:
I. (a) RS Investment Management Co. LLC is a Delaware Limited Liability
Company.
(b) holding company
II. (a) RS Investment Management, L.P. is a California Limited Partnership.
(b) registered investment adviser
III. (a) RS Value Group LLC is a Delaware Limited Liability Company.
(b) registered investment adviser
IV. (a) The RS Orphan Fund, L.P. is a California Limited Partnership.
(b) investment partnership
RS Investment Management, L.P. is a registered investment adviser. RS
Investment Management Co. LLC is the General Partner of RS Investment
Management, L.P. RS Value Group LLC is a registered investment adviser. RS
Investment Management Co. LLC is the Managing Member of RS Value Group LLC.
The RS Orphan Fund, L.P. is an investment partnership. RS Value Group LLC
is the General Partner of The RS Orphan Fund, L.P.
