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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Man Group UK LTD
  2. Issuer Name and Ticker or Trading Symbol
MF Global Ltd. [MF]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
SUGAR QUAY, LOWER THAMES STREET
3. Date of Earliest Transaction (Month/Day/Year)
08/13/2009
(Street)

LONDON, X0 EC3R 6DU
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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Forward Sale Contract (obligation to sell) (1) 08/13/2009   J(1)   1 (1) (2)     (1)(2)   (1)(2) Common Shares 22,252,667 (1) 1 (1) (2) D (2)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Man Group UK LTD
SUGAR QUAY, LOWER THAMES STREET
LONDON, X0 EC3R 6DU
    X    

Signatures

 /s/ Peter Clarke, Director   08/17/2009
**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) On August 13, 2009 (the "Trade Date"), the Reporting Person entered into a variable forward sale agreement (the "VFS Agreement") with an unaffiliated buyer pursuant to which the Reporting Person will receive an initial cash payment of approximately $112 million on August 18, 2009. In return, the contract obligates the Reporting Person to deliver up to an aggregate of 22,252,667 shares of the Issuer's common shares (the Reporting Person's entire ownership stake in the Issuer) (the "Pledged Shares") in four installments beginning on each of the 32nd, 36th, 40th and 44th months after the trade date, with each nearly equal installment spread over a 30 trading day period. The VFS Agreement provides for the Reporting Person to have received aggregate payments upon ultimate settlement of a minimum of $5.355 per common share up to a maximum of $7.14 per common share.
(2) The effect of the VFS Agreement is that the Reporting Person will not exercise voting rights with respect to the Pledged Shares. Intended settlement of the VFS Agreement would return cash amounts to the Reporting Person in lieu of any Pledged Shares that would otherwise be returnable to the Reporting Person. The Reporting Person disclaims beneficial ownership of the Issuer's common shares reported herein except to the extent of its pecuniary interest therein and the inclusion of the Issuer's common shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Issuer's common shares for purposes of Section 16 or any other purpose.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.