Edgar Filing: Mactas Mark Van

Ownership Submission

FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Mactas Mark Van

2. Issuer Name and Ticker or Trading Symbol
Towers Watson & Co. [TW]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

__X__ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
Deputy Chair, Pres, COO

(Last)

(First)

(Middle)

875 THIRD AVENUE

3. Date of Earliest Transaction (Month/Day/Year)
01/01/2011

(Street)

NEW YORK, NY 10022

4. If Amendment, Date Original Filed(Month/Day/Year)

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	01/01/2011		C		76,366	A	$ 52.06	76,366	I	The Mark V. Mactas 2010 GRAT No. 1

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date
(Month/Day/Year)

7. Title and Amount of Underlying Securities
(Instr. 3 and 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Class B Common Stock

$ 0

01/01/2011

76,366

01/01/2011⁽²⁾

01/01/2014⁽²⁾

Class A Common Stock

76,366

$ 0

229,098.156

The Mark V. Mactas 2010 GRAT No. 1

Class B Common Stock

$ 0 ⁽¹⁾

01/01/2011⁽¹⁾

01/01/2014⁽¹⁾

Class A Common Stock

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Mactas Mark Van 875 THIRD AVENUE NEW YORK, NY 10022	X		Deputy Chair, Pres, COO

Signatures

Neil Falis, attorney-in-fact for Mr. Mactas		01/04/2011
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Automatic conversion from Class B-1 to Class A shares. Balance of shares consists of an equal number of shares of Class B common stock in subclasses B-2, B-3, and B-4, which, as a result of the closing under the Agreement and Plan of Merger (the Merger Agreement) entered into between (among others) Towers, Perrin, Forster & Crosby, Inc. and Watson Wyatt Worldwide, Inc., were issued by the Issuer. Subclasses B-2, B-3, and B-4 of the Issuer's Class B common stock will automatically convert to shares of Class A common stock of the Issuer on the second, third, and fourth anniversaries, respectively, of the effective time of the merger.
(2)	Automatic conversion from Class B-1 to Class A shares. Balance of shares consists of an equal number of shares of Class B common stock in subclasses B-2, B-3, and B-4, which, as a result of the closing under the Agreement and Plan of Merger (the Merger Agreement) entered into between (among others) Towers, Perrin, Forster & Crosby, Inc. and Watson Wyatt Worldwide, Inc., were issued by the Issuer. Subclasses B-2, B-3, and B-4 of the Issuer's Class B common stock will automatically convert to shares of Class A common stock of the Issuer on the second, third, and fourth anniversaries, respectively, of the effective time of the merger.

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