Securities and Exchange Commission
Washington, D. C. 20549
Schedule 13G
Under the Securities Exchange Act of 1934
(Amendment No. 2)
Silicon Motion Technology Corp
Common Stock
CUSIP Number 82706C108
Date of Event Which Requires Filing of this Statement: December 31, 2006
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)
CUSIP No. 82706C108
1) Name of reporting person:
Brandywine Global Investment Management, LLC
Tax Identification No.:
51-0294965
2) Check the appropriate box if a member of a group:
a) X
b) n/a
3) SEC use only
4) Place of organization:
Delaware
Number of shares beneficially owned by each reporting person with:
5) Sole voting power: 3,212,375
6) Shared voting power: - 0 -
7) Sole dispositive power: - 0 -
8) Shared dispositive power: 3,521,422
9) Aggregate amount beneficially owned by each reporting person:
3,521,422
10) Check if the aggregate amount in row (9) excludes certain shares
n/a
11) Percent of class represented by amount in row (9):
11.49%
12) Type of reporting person:
IA, OO
CUSIP No. 82706C108
1) Name of reporting person:
Legg Mason Investment Counsel, LLC
Tax Identification No.:
26-0103189
2) Check the appropriate box if a member of a group:
a) X
b) n/a
3) SEC use only
4) Place of organization:
Maryland
Number of shares beneficially owned by each reporting person with:
5) Sole voting power: 114,960
6) Shared voting power: - 0 -
7) Sole dispositive power: 114,960
8) Shared dispositive power: - 0 -
9) Aggregate amount beneficially owned by each reporting person:
114,960
10) Check if the aggregate amount in row (9) excludes certain shares
n/a
11) Percent of class represented by amount in row (9):
0.38%
12) Type of reporting person:
IA
CUSIP No. 82706C108
1) Name of reporting person:
Legg Mason Investment Counsel & Trust Co, NA
Tax Identification No.:
52-2194681
2) Check the appropriate box if a member of a group:
a) X
b) n/a
3) SEC use only
4) Place of organization:
Maryland
Number of shares beneficially owned by each reporting person with:
5) Sole voting power: 355
6) Shared voting power: - 0 -
7) Sole dispositive power: 355
8) Shared dispositive power: - 0 -
9) Aggregate amount beneficially owned by each reporting person:
355
10) Check if the aggregate amount in row (9) excludes certain shares
n/a
11) Percent of class represented by amount in row (9):
0.001%
12) Type of reporting person:
IA
___________________________________________________________________________
Item 1a) Name of issuer:
Silicon Motion Technology Corp
Item 1b) Address of issuer's principal executive offices:
No. 20-1, Taiyuan St.
Jhubei City, Hsinchu County 302 Taiwan
Item 2a) Name of person filing:
Brandywine Global Investment Management, LLC
Legg Mason Investment Counsel, LLC
Legg Mason Investment Counsel & Trust Co, NA
Item 2b) Address of principal business office:
2929 Arch Street
8th Floor
Philadelphia, PA 19104
Item 2c) Citizenship:
Brandywine Global Investment Management, LLC
Delaware Limited Liability Company
Legg Mason Investment Counsel, LLC
Maryland Limited Liability Company
Legg Mason Investment Counsel & Trust Co, NA
National Banking Association
Item 2d) Title of class of securities:
Common Stock
Item 2e) CUSIP number: 82706C108
Item 3) If this statement is filed pursuant to Rule 13d-1(b),
or 13d-2(b), check whether the person filing is a:
(a)[ ]Broker or dealer under Section 15 of the Act.
(b)[ ]Bank as defined in Section 3(a) (6) of the Act.
(c)[ ]Insurance Company as defined in Section 3(a) (6) of the Act.
(d)[ ]Investment Company registered under Section 8 of the Investment
Company Act.
(e)[ ]Investment Adviser registered under Section 203 of the Investment
Advisers Act of 1940.
(f)[ ]Employee Benefit Plan, Pension Fund which is subject to ERISA
of 1974 or Endowment Fund; see 240.13d-1(b)(ii)(F).
(g)[ ] Parent holding company, in accordance with 240.13d-1(b)(ii)(G).
(h)[X] Group, in accordance with 240.13d-1(b)(1)(ii)(H).
Item 4) Ownership:
(a) Amount beneficially owned: 3,636,737
(b) Percent of Class: 11.86%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote:
3,327,690
(ii) shared power to vote or to direct the vote:
0
(iii) sole power to dispose or to direct the disposition of:
115,315
(iv) shared power to dispose or to direct the disposition of:
3,521,422
Item 5) Ownership of Five Percent or less of a class:
n/a
Item 6) Ownership of more than Five Percent on behalf of another
person:
No single account owns more than 5% of the shares
outstanding.
Item 7) Identification and classification of the subsidiary which
acquired the security being reported on by the parent
holding company:
n/a
Item 8) Identification and classification of members of the group:
Brandywine Global Investment Management, LLC
Legg Mason Investment Counsel, LLC
Legg Mason Investment Counsel & Trust Co, NA
Item 9) Notice of dissolution of group:
n/a
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.
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Date - February 14, 2007
Brandywine Global Investment Management, LLC
By _________________________________________________
/s/ Mark Glassman Chief Accounting Officer