BANKERS TRUST CORPORATION
One Bankers Trust Plaza
New York, New York 10006
Damian P. Reitemeyer
Principal
Telephone: (212)250-4599
February 12, 1999
Securities and Exchange Commission
SEC Document Control
450 Fifth Street, N.W.
Washington, DC 20549
Attn: Filing Desk
Dear Sirs:
Re: Filing of Schedule 13G on
Cognex Corporation
Pursuant to Rule 13d-1 of the General Rules and Regulations
under the Securities Exchange Act of 1934, the following is
one copy of the Schedule 13G with respect to the common
stock of the above referenced corporation.
Please acknowledge your receipt of the Schedule 13G filing
submission through the EDGAR-Link System software, by E-Mail
confirmation.
Sincerely,
Damian P. Reitemeyer
Enclosures
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. )*
Cognex Corporation
_______________________________________
NAME OF ISSUER:
Common Stock (Par Value $.002)
_______________________________________
TITLE OF CLASS OF SECURITIES
192422103
_______________________________________
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 (the 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 page(s))
Page 1 of 9 Pages
CUSIP No. 192422103 Page 2 of 9 Pages
1.NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
Bankers Trust Corporation, its wholly owned
subsidiary, Bankers Trust Company and its indirect
wholly owned subsidiaries, BT Alex. Brown Incorporated
(BT Alex. Brown).
13-6180473
2.CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
(A) [ ]
(B) [ ]
See page 8 of 10, Item 8 - IDENTIFICATION AND
CLASSIFICATION OF MEMBERS OF THE GROUP
3.SEC USE ONLY
4.CITIZENSHIP OR PLACE OF ORGANIZATION
Bankers Trust Corporation, and Bankers Trust Company
are New York Corporations. BT Alex. Brown is a
Delaware Corporation.
CUSIP No. 192422103 Page 3 of 9 Pages
NUMBER OF 5. SOLE VOTING POWER
SHARES
Bankers Trust Company 137,100 shares
BT Alex.Brown 1,500 shares
138,600 shares
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY
Bankers Trust Company 0 shares
BT Alex.Brown 0 shares
0 shares
EACH 7. SOLE DISPOSITIVE POWER
REPORTING
Bankers Trust Company 255,600 shares
BT Alex.Brown 1,500 shares
257,100 shares
PERSON 8. SHARED DISPOSITIVE POWER
WITH
Bankers Trust Company 0 shares
BT Alex.Brown 0 shares
0 shares
9.AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON
Bankers Trust Company 255,600 shares
BT Alex.Brown 1,500 shares
257,100 shares
10.CHECK BOX IF THE AGGREGATE AMOUNT IN ROW(9) EXCLUDES
CERTAIN SHARES *
[]
CUSIP No. 192422103 Page 4 of 9 Pages
11.PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
Bankers Trust Company 0.64%
BT Alex.Brown 0.00%
0.64%
12.TYPE OF REPORTING PERSON *
Bankers Trust Corporation - HC
Bankers Trust Company - BK
BT Alex.Brown - BD
CUSIP No. 192422103 Page 5 of 9 Pages
Item 1(a) NAME OF ISSUER:
Cognex Corporation
Item 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
One Vision Drive
Natick, MA 01760
Item 2(a) NAME OF PERSON FILING:
Bankers Trust Corporation, its wholly-owned
subsidiary, Bankers Trust Company, and its
indirect wholly-owned subsidiary,
BT Alex. Brown.
Item 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE:
For Bankers Trust Corporation,
Bankers Trust Company and BT Alex.Brown
130 Liberty Street
New York, New York 10006
Item 2(c) CITIZENSHIP:
Bankers Trust Corporation and Bankers
Trust Company are corporations incorporated in
the State of New York with their principal
business offices located in New York.
BT Alex.Brown is a Delaware corporation with
its principal business office located in
New York.
CUSIP No. 192422103 Page 6 of 9 Pages
Item 2(d) TITLE OF CLASS OF SECURITIES:
This statement relates to the Companys Common
Stock $.002 par value per share.
Item 2(e) CUSIP NUMBER:
192422103
Item 3 THE PERSON FILING IS A:
For Bankers Trust Corporation
(g) [X] Parent Holding Company, in accordance with
Section 240.13d-1(b)(ii)(G)
For Bankers Trust Company
(b) [X] Bank as defined in section 3(a)(6) of the Act.
For BT Alex.Brown
(a) [X] Broker or dealer registered under Section 15
15 of the Act.
Item 4 OWNERSHIP:
(a) Amount Beneficially Owned:
Bankers Trust Company 255,600 shares
BT Alex.Brown 1,500 shares
257,100 shares
CUSIP No. 192422103 Page 7 of 9 Pages
(b) Percent of Class :
Bankers Trust Company 0.64%
BT Alex.Brown 0.00%
0.64%
(c) Number of shares as to which the following have:
(i) sole power to vote or to direct the vote -
Bankers Trust Company 137,100 shares
BT Alex.Brown 1,500 shares
138,600 shares
(ii) shared power to vote or to direct the vote -
Bankers Trust Company 0 shares
BT Alex.Brown 0 shares
0 shares
(iii) sole power to dispose or to direct the
disposition of -
Bankers Trust Company 255,600 shares
BT Alex.Brown 1,500 shares
257,100 shares
CUSIP No. 192422103 Page 8 of 9 Pages
(iv) shared power to dispose or to direct
the disposition of -
Bankers Trust Company 0 shares
BT Alex.Brown 0 shares
0 shares
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 WHICH ACQUIRED THE SECURITY BEING
REPORTED ON BY THE PARENT HOLDING COMPANY:
See Exhibits A, B and C.
Item 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS
OF THE GROUP:
In addition to the shares presented in this
Form 13G, Alex.Brown Investment Management, a
limited partnership that is 50% owned
indirectly by Bankers Trust Corporation,
beneficially owns 2,459,650 shares or 6.14%
of Cognex Corporation This ownership was
disclosed in a separate 13G filed by
Alex.Brown Investment Management.
Item 9 NOTICE OF DISSOLUTION OF GROUP:
Not applicable.
CUSIP No. 192422103 Page 9 of 9 Pages
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
for the purpose of and do not have the effect of
changing or influencing the control of the issuer
of such securities and were not acquired in
connection with or as a participant in any
transaction having such 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.
Date: as of December 31, 1998
Signature: Bankers Trust Corporation
By: /s/ James T. Byrne, Jr.
Name: James T. Byrne, Jr.
Title: Secretary
Signature: Bankers Trust Company
By: /s/ James T. Byrne, Jr.
Name: James T. Byrne, Jr.
Title: Secretary
Signature: BT Alex.Brown
By: /s/ James T. Byrne, Jr.
Name: James T. Byrne, Jr.
Title: Secretary
Exhibit A
The chain of ownership from Bankers Trust Corporation
to Bankers Trust Company is shown below:
Bankers Trust Corporation
|
|
100%
|
|
Bankers Trust Company
Exhibit B
The chain of ownership from Bankers Trust Corporation
to BT Alex.Brown is shown below:
Bankers Trust Corporation
|
|
100%
|
|
BT Alex.Brown Holdings Incorporated
|
|
|
100%
|
|
BT Alex. Brown Incorporated
Exhibit C
The chain of ownership from Bankers Trust Corporation
to Alex.Brown Investment Management is shown below:
Bankers Trust Corporation
|
|
100%
|
|
BT Alex.Brown Holdings Incorporated
|
_________________________|________________
| |
| |
| |
| |
| |
| |
| |
49% 100%
| |
| |
Alex.Brown Investment Management BT Alex.Brown Incorporated
(limited partnership)
|
|
1%
|
|
Alex.Brown Investment Management
(limited partnership)
