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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. 1 )
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Minerals Technologies Inc.
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(Name of Issuer)
Common Stock
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(Title of Class of Securities)
603158106
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(CUSIP Number)
December 31, 2000
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(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-1(b)
[ ] 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 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).
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CUSIP No. 603158106 13G
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1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Artisan Partners Limited Partnership 39-1807188
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see Instructions) (a)[ ]
Not Applicable (b)[ ]
- -------------------------------------------------------------------------------
3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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5 SOLE VOTING POWER
None
NUMBER OF ------------------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY 1,315,832
OWNED BY ------------------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING None
PERSON ------------------------------------------------------------------
WITH 8 SHARED DISPOSITIVE POWER
1,315,832
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,315,832
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
(see Instructions)
Not Applicable
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.49%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON
(see Instructions)
IA
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CUSIP No. 603158106 13G
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1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Artisan Investment Corporation
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see Instructions) (a)[ ]
Not Applicable (b)[ ]
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Wisconsin
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER
None
NUMBER OF ------------------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY 1,315,832
OWNED BY ------------------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING None
PERSON ------------------------------------------------------------------
WITH 8 SHARED DISPOSITIVE POWER
1,315,832
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,315,832
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
(see Instructions)
Not Applicable
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.49%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON
(see Instructions)
CO
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CUSIP No. 603158106 13G
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- -------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Andrew A. Ziegler
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see instructions) (a)[ ]
Not Applicable (b)[ ]
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER
None
NUMBER OF ------------------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY 1,315,832
OWNED BY ------------------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING None
PERSON ------------------------------------------------------------------
WITH 8 SHARED DISPOSITIVE POWER
1,315,832
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,315,832
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
(see Instructions)
Not Applicable
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.49%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON
(see instructions)
IN
- -------------------------------------------------------------------------------
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CUSIP No. 603158106 13G
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- -------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Carlene Murphy Ziegler
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see Instructions) (a)[ ]
(b)[ ]
Not Applicable
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER
None
NUMBER OF ------------------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY 1,315,832
OWNED BY ------------------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING None
PERSON ------------------------------------------------------------------
WITH 8 SHARED DISPOSITIVE POWER
1,315,832
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,315,832
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES
(see Instructions)
Not Applicable
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
6.49%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON
(see Instructions)
IN
- -------------------------------------------------------------------------------
Item 1(a) Name of Issuer:
Minerals Technologies Inc.
Item 1(b) Address of Issuer's Principal Executive Offices:
405 Lexington Avenue
New York, NY 10174-1901
Item 2(a) Name of Person Filing:
Artisan Partners Limited Partnership ("Artisan Partners")
Artisan Investment Corporation, the general partner of
Artisan Partners ("Artisan Corp.")
Andrew A. Ziegler
Carlene Murphy Ziegler
Item 2(b) Address of Principal Business Office:
Artisan Partners, Artisan Corp., Mr. Ziegler and Ms. Ziegler
are all located at:
1000 North Water Street, #1770
Milwaukee, WI 53202
Item 2(c) Citizenship:
Artisan Partners is a Delaware limited partnership
Artisan Corp. is a Wisconsin corporation
Mr. Ziegler and Ms. Ziegler are U.S. citizens
Item 2(d) Title of Class of Securities:
Common Stock
Item 2(e) CUSIP Number:
603158106
Item 3 Type of Person:
(e) Artisan Partners is an investment adviser registered
under section 203 of the Investment Advisers Act of 1940;
Artisan Corp. is the General Partner of Artisan Partners;
Mr. Ziegler and Ms. Ziegler are the principal stockholders
of Artisan Corp.
Item 4 Ownership (at December 31, 2000):
(a) Amount owned "beneficially" within the meaning of
rule 13d-3:
1,315,832
(b) Percent of class:
6.49% (based on 20,272,646 shares outstanding
as of October 20, 2000)
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the
vote: none
(ii) shared power to vote or to direct the
vote: 1,315,832
(iii) sole power to dispose or to direct the
disposition of: none
(iv) shared power to dispose or to direct
disposition of: 1,315,832
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:
The shares reported herein have been acquired on behalf of
discretionary clients of Artisan Partners. Persons other
than Artisan Partners are entitled to receive all dividends
from, and proceeds from the sale of, those shares. None of
those persons, to the knowledge of Artisan Partners,
Mr. Ziegler or Ms. Ziegler, has an economic interest in more
than 5% of the class.
Item 7 Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding
Company or Control Person:
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:
By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were acquired in the
ordinary course of business and were not acquired and are not
held for the purpose of or with the 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
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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 9, 2001
ARTISAN INVESTMENT CORPORATION
for itself and as general partner of
ARTISAN PARTNERS LIMITED PARTNERSHIP
By: /s/ Andrew A. Ziegler
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Andrew A. Ziegler
President
ANDREW A. ZIEGLER
/s/ Andrew A. Ziegler
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CARLENE MURPHY ZIEGLER
/s/ Carlene Murphy Ziegler
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Exhibit Index
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Exhibit 1 Joint Filing Agreement dated as of February 9, 2001 by
and among Artisan Partners Limited Partnership,
Artisan Investment Corporation, Andrew A. Ziegler,
and Carlene Murphy Ziegler
EXHIBIT 1
JOINT FILING AGREEMENT
The undersigned hereby agree to the joint filing of the Schedule 13G
to which this Agreement is attached.
Dated: February 9, 2001
ARTISAN INVESTMENT CORPORATION
for itself and as general partner of
ARTISAN PARTNERS LIMITED PARTNERSHIP
By: /s/ Andrew A. Ziegler
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Andrew A. Ziegler
President
ANDREW A. ZIEGLER
/s/ Andrew A. Ziegler
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CARLENE MURPHY ZIEGLER
/s/ Carlene Murphy Ziegler
--------------------------