0000909012-12-000142.txt : 20120214
0000909012-12-000142.hdr.sgml : 20120214
20120214100146
ACCESSION NUMBER: 0000909012-12-000142
CONFORMED SUBMISSION TYPE: SC 13G/A
PUBLIC DOCUMENT COUNT: 1
FILED AS OF DATE: 20120214
DATE AS OF CHANGE: 20120214
SUBJECT COMPANY:
COMPANY DATA:
COMPANY CONFORMED NAME: MATTSON TECHNOLOGY INC
CENTRAL INDEX KEY: 0000928421
STANDARD INDUSTRIAL CLASSIFICATION: SPECIAL INDUSTRY MACHINERY, NEC [3559]
IRS NUMBER: 770208119
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: SC 13G/A
SEC ACT: 1934 Act
SEC FILE NUMBER: 005-46189
FILM NUMBER: 12603328
BUSINESS ADDRESS:
STREET 1: 47131 BAYSIDE PARKWAY
CITY: FREMONT
STATE: CA
ZIP: 94538
BUSINESS PHONE: 510 657 5900
MAIL ADDRESS:
STREET 1: 47131 BAYSIDE PARKWAY
CITY: FREMONT
STATE: CA
ZIP: 94538
FILED BY:
COMPANY DATA:
COMPANY CONFORMED NAME: NWQ INVESTMENT MANAGEMENT CO LLC
CENTRAL INDEX KEY: 0000763848
IRS NUMBER: 470875103
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: SC 13G/A
BUSINESS ADDRESS:
STREET 1: 2049 CENTURY PARK EAST
STREET 2: 18TH FLOOR
CITY: LOS ANGELES
STATE: CA
ZIP: 90067
BUSINESS PHONE: (310) 552-5114
MAIL ADDRESS:
STREET 1: 2049 CENTURY PARK EAST
STREET 2: 18TH FLOOR
CITY: LOS ANGELES
STATE: CA
ZIP: 90067
FORMER COMPANY:
FORMER CONFORMED NAME: NWQ INVESTMENT MANAGEMENT CO /CA/
DATE OF NAME CHANGE: 19990407
SC 13G/A
1
t306615.txt
MATT
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G/A
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 8)*
Mattson Technology
------------------
(Name of Issuer)
Common
------
(Title of Class of Securities)
577223100
---------
(CUSIP Number)
December 31, 2011
-----------------
(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).
PAGE 1 OF 4 PAGES
--------------------------------------------------------------------------------
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
NWQ Investment Management Company, LLC 47-0875103
--------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_]
(b) [_]
--------------------------------------------------------------------------------
3 SEC USE ONLY
--------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware - U.S.A.
--------------------------------------------------------------------------------
5 SOLE VOTING POWER
2,744,547
NUMBER OF -----------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY
OWNED BY 0
EACH -----------------------------------------------------------
REPORTING 7 SOLE DISPOSITIVE POWER
PERSON
WITH 2,898,590
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
--------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,898,590
--------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
N/A
--------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.98%
--------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IA
--------------------------------------------------------------------------------
PAGE 2 OF 4 PAGES
Item 1(a) Name of Issuer:
Mattson Technology Inc.
Item 1(b) Address of Issuer's Principal Executive Offices:
47131 Bayside Parkway
Fremont, CA 94538
United States
Item 2(a) Name of Person Filing:
NWQ Investment Management Company, LLC
Item 2(b) Address of the Principal Office or, if none, Residence:
2049 Century Park East, 16th Floor
Los Angeles, CA 90067
Item 2(c) Citizenship:
Delaware - U.S.A.
Item 2(d) Title of Class of Securities:
Common
Item 2(e) CUSIP Number:
577223100
Item 3 If the Statement is being filed pursuant to Rule
13d-1(b), or 13d-2(b), check whether the person filing
is a:
(e) [X] An investment advisor in accordance with
section 240.13d-1(b)(1)(ii)(E)
Item 4 Ownership:
(a) Amount Beneficially Owned:
2,898,590
(b) Percent of Class:
4.98%
(c) Number of shares as to which such person has:
(i) sole power to vote or direct the vote:
2,744,547
(ii) shared power to vote or direct the vote:
0
(iii) sole power to dispose or to direct the
disposition of:
2,898,590
(iv) shared power to dispose or to direct the
disposition of:
0
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/
PAGE 3 OF 4 PAGES
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 a 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 such securities and
were not acquired in connection with or as a participant in any
transaction having such purpose or effect.
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 10, 2012
NWQ Investment Management Company, LLC
By: /s/ Jon D. Bosse
-------------------------------
Name: Jon D. Bosse, CFA
Title: Chief Investment Officer
PAGE 4 OF 4 PAGES