PAGE 1 OF 6 PAGES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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SCHEDULE 13G/A
Under the Securities Exchange Act of 1934
(Amendment No. 4)*
THE THOMSON CORPORATION
(Name of Issuer)
Common Shares
(Title of Class of Securities)
884903 10 5
(CUSIP Number)
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Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[ ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[X] 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).
CUSIP NO. 884903 10 5 13G/A PAGE 2 OF 6 PAGES
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1 NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSON (entities only)
Kenneth R. Thomson
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
(b) [X]
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
Canadian
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5 SOLE VOTING POWER
448,743,343
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NUMBER OF 6 SHARED VOTING POWER
SHARES
BENEFICIALLY 0
OWNED BY -----------------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING
PERSON 448,743,343
WITH -----------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
0
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
448,743,343
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions) [ ]
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
69.15%
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12 TYPE OF REPORTING PERSON (See Instructions)
IN
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PAGE 3 OF 6 PAGES
Item 1(a). Name of Issuer:
The Thomson Corporation
Item 1(b). Address of Issuer's Principal Executive Offices:
Metro Center
One Station Place
Stamford, Connecticut 06902
Item 2(a). Name of Person Filing:
Kenneth R. Thomson
Item 2(b). Address of Principal Business Office or, if None, Residence:
65 Queen Street West
24th Floor
Toronto, Ontario
M5H 2M8, Canada
Item 2(c). Citizenship:
Canadian
Item 2(d). Title of Class of Securities:
Common Shares
Item 2(e). CUSIP Number:
Common Shares: 884903 10 5
Item 3. If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b),
check whether the person filing is a:
Not applicable.
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Item 4. Ownership.
(a) Amount Beneficially Owned:
448,743,343
(b) Percent of Class:
69.15%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote:
448,743,343
(ii) shared power to vote or to direct the vote:
0
(iii) sole power to dispose or to direct the disposition of:
448,743,343
(iv) shared power to dispose or to direct the disposition of:
0
The 448,743,343 common shares reported as beneficially owned by Mr.
Thomson are beneficially owned by Mr. Thomson through intermediate
holding companies. Mr. Thomson owns, directly or indirectly, the
majority of the outstanding voting securities of each such
intermediate holding company.
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 448,743,343 common shares reported as beneficially owned by Mr.
Thomson are beneficially owned by Mr. Thomson through intermediate
holding companies. Mr. Thomson owns, directly or indirectly, the
majority of the outstanding voting securities of each such
intermediate holding company.
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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:
Not applicable. This statement is not being filed pursuant to Rule
13d-1(b) or Rule 13d-1(c).
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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.
February 14, 2006
/s/ Kenneth R. Thomson
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Kenneth R. Thomson