UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 15 )*
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Kronos Inc.
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(Name of Issuer)
Class A Common Stock
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(Title of Class of Securities)
501052104
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(CUSIP Number)
January 31, 2006
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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).
Page 1 of 11 pages
13G
CUSIP No. 501052104 Page 2 or 11 Pages
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1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Columbia Wanger Asset Management, L.P. 04-3519872
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
Not Applicable (a) []
(b) []
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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5 SOLE VOTING POWER
NUMBER OF None
SHARES
BENEFICIALLY -------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH
REPORTING 3,443,787
PERSON WITH
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7 SOLE DISPOSITIVE POWER
None
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8 SHARED DISPOSITIVE POWER
3,443,787
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,443,787
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
Not Applicable
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
10.81%
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12 TYPE OF REPORTING PERSON*
IA
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13G
CUSIP No. 501052104 Page 3 of 11 pages
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1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
WAM Acquisition GP, Inc.
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
Not Applicable (a) []
(b) []
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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5 SOLE VOTING POWER
NUMBER OF None
SHARES ----------------------------------------------------------
BENEFICIALLY 6 SHARED VOTING POWER
OWNED BY
EACH 3,443,787
REPORTING ----------------------------------------------------------
PERSON WITH 7 SOLE DISPOSITIVE POWER
None
---------------------------------------------------------
8 SHARED DISPOSITIVE POWER
3,443,787
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
3,443,787
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
Not Applicable
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
10.81%
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12 TYPE OF REPORTING PERSON*
CO
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13G
CUSIP No. 501052104 Page 4 of 11 Pages
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1 NAME OF REPORTING PERSON
S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Columbia Acorn Trust
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
Not Applicable (a) []
(b) []
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Massachusetts
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5 SOLE VOTING POWER
NUMBER OF None
SHARES
BENEFICIALLY ---------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH
REPORTING 2,465,650
PERSON WITH
---------------------------------------------------------
7 SOLE DISPOSITIVE POWER
None
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8 SHARED DISPOSITIVE POWER
2,465,650
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
2,465,650
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
Not Applicable
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
7.74%
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12 TYPE OF REPORTING PERSON*
IV
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Item 1(a) Name of Issuer:
Kronos Inc.
Item 1(b) Address of Issuer's Principal Executive Offices:
297 Billerica Road
Chelmsford, MA 01824
Item 2(a) Name of Person Filing:
Columbia Wanger Asset Management, L.P.
("WAM")
WAM Acquisition GP, Inc., the
general partner of WAM ("WAM GP")
Columbia Acorn Trust ("Acorn")
Item 2(b) Address of Principal Business Office:
WAM, WAM GP and Acorn are located at:
227 West Monroe Street, Suite 3000
Chicago, Illinois 60606
Item 2(c) Citizenship:
WAM is a Delaware limited partnership; WAM
GP is a Delaware corporation; and Acorn is a
Massachusetts business trust;
Item 2(d) Title of Class of Securities:
Class A Common Stock
Item 2(e) CUSIP Number:
501052104
Item 3 Type of Person:
(d) Acorn is an Investment Company under
section 8 of the Investment Company
Act.
(e) WAM is an Investment Adviser
registered under section 203 of the
Investment Advisers Act of 1940; WAM
GP is the General Partner of the
Investment Adviser.
Item 4 Ownership (at January 31, 2006):
(a) Amount owned "beneficially" within the meaning of rule
13d-3:
3,443,787
(b) Percent of class:
10.81% (based on 31,865,530 shares outstanding as of January
31, 2006)
(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: 3,443,787
(iii) sole power to dispose or to direct the disposition of:
none
(iv) shared power to dispose or to direct disposition of:
3,443,787
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 WAM, including Acorn. Persons other than
WAM and WAM GP are entitled to receive all
dividends from, and proceeds from the sale
of, those shares. Acorn is the only such
person known to be entitled to all dividends
from, and all proceeds from the sale of,
shares reported herein to the extent of 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:
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 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.
Date: February 7, 2006
The undersigned corporation, on the date above
written, agrees and consents to the joint filing on
its behalf of this Schedule 13G in connection with
its beneficial ownership of the security reported
herein.
WAM Acquisition GP, Inc.
for itself and as general partner of
COLUMBIA WANGER ASSET MANAGEMENT, L.P.
By: /s/ Bruce H. Lauer
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Bruce H. Lauer
Senior Vice President and Secretary
The undersigned trust, on the date above written,
agrees and consents to the joint filing on its behalf
of this Schedule 13G in connection with its
beneficial ownership of the security reported herein.
COLUMBIA ACORN TRUST
By: /s/ Bruce H. Lauer
-------------------------------------------
Bruce H. Lauer
Vice President, Treasurer and
Secretary
Exhibit Index
Exhibit 1 Joint Filing Agreement dated as of February 7,
2006 by and among Columbia Wanger Asset Management,
L.P., WAM Acquisition GP, Inc. and Columbia Acorn
Trust.
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 7, 2006
WAM Acquisition GP, Inc.
for itself and as general partner of
COLUMBIA WANGER ASSET MANAGEMENT, L.P.
By: /s/ Bruce H. Lauer
-----------------------------------------
Bruce H. Lauer
Senior Vice President and Secretary
COLUMBIA ACORN TRUST
By: /s/ Bruce H. Lauer
-----------------------------------------
Bruce H. Lauer
Vice President, Treasurer and
Secretary