UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

x

Rule 13d-1(b)

o

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No. 884903 10 5

1

Names of Reporting Persons
I.R.S. Identification Nos. of Above Persons (Entities Only)

THE BANK OF NOVA SCOTIA

2

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

x—  Joint Filing

3

SEC Use Only

4

Citizenship or Place of Organization
CANADA

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With:

5

Sole Voting Power
912,348  common shares of Thomson Reuters Corporation

6

Shared Voting Power
0

7

Sole Dispositive Power
912,348  common shares of Thomson Reuters Corporation

8

Shared Dispositive Power
0

9

Aggregate Amount Beneficially Owned by Each Reporting Person
912,348  common shares of Thomson Reuters Corporation

10

Check if the Aggregate Amount in Row (9) Excludes Certain Shares*  x

The number of shares in row (9) excludes the 452,364,520 common shares of Thomson Reuters Corporation owned by The Woodbridge Company Limited referred to in the Explanatory Note, with respect to which The Bank of Nova Scotia is disclaiming beneficial ownership as well as additional common shares of Thomson Reuters Corporation held by The Bank of Nova Scotia Trust Company.

11

Percent of Class Represented by Amount in Row (9)
0.12% common shares of Thomson Reuters Corporation

12

Type of Reporting Person (See Instructions)
FI

CUSIP No. 884903 10 5

1

Names of Reporting Persons
I.R.S. Identification Nos. of Above Persons (Entities Only)

THE BANK OF NOVA SCOTIA TRUST COMPANY

2

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

x—  Joint Filing

3

SEC Use Only

4

Citizenship or Place of Organization
CANADA

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With:

5

Sole Voting Power
273,894 common shares of Thomson Reuters Corporation

6

Shared Voting Power
0

7

Sole Dispositive Power
273,894 common shares of Thomson Reuters Corporation

8

Shared Dispositive Power
0

9

Aggregate Amount Beneficially Owned by Each Reporting Person
273,894  common shares of Thomson Reuters Corporation

10

Check if the Aggregate Amount in Row (9) Excludes Certain Shares*  x

The number of shares in row (9) excludes the 452,364,520 common shares of Thomson Reuters Corporation owned by The Woodbridge Company Limited referred to in the Explanatory Note, with respect to which The Bank of Nova Scotia Trust Company is disclaiming beneficial ownership as well as additional common shares of Thomson Reuters Corporation held by The Bank of Nova Scotia.

11

Percent of Class Represented by Amount in Row (9)
0.04% common shares of Thomson Reuters Corporation

12

Type of Reporting Person (See Instructions)
FI

Item 1(a).

Name of Issuer:
This Schedule 13G relates to the Common Shares.

Item 1(b).

Address of Issuer’s Principal Executive Offices:
The principal executive office of Thomson Reuters Corporation is located at 3 Times Square in New York, New York, 10036.

Item 2(a).

Name of Person Filing:
This Schedule 13G is being filed by the Bank and its subsidiary, the Trust Company. The Bank and the Trust Company are filing this Schedule 13G because the Trust Company is trustee of a trust which forms part of the estate arrangements of Kenneth R. Thomson. For further explanation of the background of the arrangements relating to Woodbridge’s ownership of the Common Shares, see the “Explanatory Note” above.

Item 2(b).

Address of Principal Business Office or, if none, Residence:
The principal address of the Bank and the Trust Company is 44 King Street West, Toronto, Ontario, M5H 1H1, Canada.

Item 2(c).

Citizenship:
The Bank is a chartered bank organized under the laws of Canada.

The Trust Company is a trust company organized under the laws of Canada.

Item 2(d).

Title of Class of Securities:
Common Shares.

Item 2(e).

CUSIP Numbers:
884903 10 5

Item 3.

If this statement is filed pursuant to rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

(a)

o

Broker or dealer registered under section 15 of the Exchange Act.

(b)

o

Bank as defined in section 3(a)(6) of the Exchange Act.

(c)

o

Insurance company as defined in section 3(a)(19) of the Exchange Act.

(d)

o

Investment company registered under section 8 of the Investment Company Act.

(e)

o

An investment adviser in accordance with rule 13d-1(b)(1)(ii)(E);

(f)

o

An employee benefit plan or endowment fund in accordance with rule 13d-1(b)(1)(ii)(F);

(g)

o

A parent holding company or control person in accordance with rule 13d-1(b)(1)(ii)(G);

(h)

o

A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act;

(i)

o

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act;

(j)

x

A non-U.S. institution in accordance with rule 13d-1(b)(1)(ii)(J);

(k)

o

Group, in accordance with rule 13d-1(b)(1)(ii)(K); If filing as a non-U.S. institution in accordance with rule 13d-1(b)(1)(ii)(J), please specify the type of institution: Bank and Trust Company

Item 4.

Ownership.

(a)

Amount beneficially owned:   

See Item 9 of the attached cover page(s).

(b)

Percent of class:   

See Item 11 of the attached cover page(s), which is based on Item 9 of the cover page(s).

(c)

Number of shares as to which the person has;

(i)

Sole power to vote or direct the vote:   

See Item 5 on the attached cover page(s).

(ii)

Shared power to vote or to direct the vote:    

See Item 6 on the attached cover page(s).

(iii)

Sole power to dispose or to direct the disposition of:   

See Item 7 on the attached cover page(s).

(iv)

Shared power to dispose or to direct the disposition of:   

See Item 8 on the attached cover page(s).

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   o

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 Group.

Not applicable.

Item 10.

Certifications.

By signing below I certify that, to the best of my knowledge and belief (i) 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, and (ii) the foreign regulatory scheme applicable to the Bank and Trust Company is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institutions. I also undertake to furnish to the Securities and Exchange Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

THE BANK OF NOVA SCOTIA

By:

Name:

Deborah Alexander

Title:

Executive Vice President,
General Counsel and Secretary

THE BANK OF NOVA SCOTIA TRUST COMPANY

By:

Name:

Paul Fensom

Title:

ST Director, Estate & Trust Services

THE BANK OF NOVA SCOTIA

By:

Name:

Deborah Alexander

Title:

Executive Vice President,
General Counsel and Secretary

THE BANK OF NOVA SCOTIA TRUST COMPANY

By:

Name:

Paul Fensom

Title:

ST Director, Estate & Trust Services