- Amended Statement of Ownership (SC 13G/A)

SC 13G/A

VIKING GLOBAL PERFORMANCE LLC
VIKING GLOBAL INVESTORS LP
VIKING GLOBAL EQUITIES LP
VIKING GLOBAL EQUITIES II LP
VIKING LONG FUND GP LLC
VIKING LONG FUND MASTER LTD.
O. ANDREAS HALVORSEN
DAVID C. OTT
THOMAS W. PURCELL, JR.

NASD

0000929887
Apollo Group, Inc.
86-0419443

Eric Komitee
203-863-5062

0001132625
vgp#55vgp

SC 13G

viking1.txt

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Schedule 13G/A
(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b),(c)
AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2
UNDER THE SECURITIES EXCHANGE ACT OF 1934*
(Amendment No. 2)

Apollo Group, Inc.
(Name of Issuer)

Class A Common Stock, no par value
(Title of Class of Securities)

037604105
(CUSIP Number)

December 31, 2009
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
[ ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[ ] 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).

Schedule 13G/A PAGE 2 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Global Performance LLC
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 95,000
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 95,000
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 95,000
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 CO
_____________________________________________________________________________

Schedule 13G/A PAGE 3 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Global Investors LP
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 95,000
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 95,000
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 95,000
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 PN
_____________________________________________________________________________

Schedule 13G/A PAGE 4 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Global Equities LP
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 91,100
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 91,100
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 91,100
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 PN
_____________________________________________________________________________

Schedule 13G/A PAGE 5 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Global Equities II LP
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 3,900
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 3,900
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 3,900
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .003%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 PN
_____________________________________________________________________________

Schedule 13G/A PAGE 6 of 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Long Fund GP LLC
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 0
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 0
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 0
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 CO
_____________________________________________________________________________

Schedule 13G/A PAGE 7 of 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Viking Long Fund Master Ltd.
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Cayman Islands
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 0
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 0
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 0
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 CO
_____________________________________________________________________________

Schedule 13G/A PAGE 8 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 O. Andreas Halvorsen
_____________________________________________________________________________
 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________
 (3) SEC USE ONLY

_____________________________________________________________________________
 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Norway
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 95,000
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 95,000
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 95,000
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 IN
_____________________________________________________________________________

Schedule 13G/A PAGE 9 OF 15

CUSIP No. 037604105
_____________________________________________________________________________

 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 David C. Ott
_____________________________________________________________________________

 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________

 (3) SEC USE ONLY
_____________________________________________________________________________

 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 95,000
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 95,000
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 95,000
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 IN
_____________________________________________________________________________

Schedule 13G/A PAGE 10 OF 15

CUSIP No. 037604105
_____________________________________________________________________________
 (1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Thomas W. Purcell, Jr.
_____________________________________________________________________________

 (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [x]
_____________________________________________________________________________

 (3) SEC USE ONLY
_____________________________________________________________________________

 (4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
_____________________________________________________________________________

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ______________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 95,000
OWNED BY ______________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ______________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 95,000
_____________________________________________________________________________
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 95,000
_____________________________________________________________________________
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
_____________________________________________________________________________
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 .1%
_____________________________________________________________________________
 (12) TYPE OF REPORTING PERSON
 IN
_____________________________________________________________________________

Schedule 13G/A PAGE 11 OF 15

ITEM 1(a). NAME OF ISSUER:
Apollo Group, Inc.

ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
4025 S. Riverpoint Parkway, Phoenix, Arizona 85040

ITEM 2(a). NAME OF PERSON FILING:
Viking Global Performance LLC ("VGP"), Viking Global Investors LP ("VGI"), Viking Global Equities LP ("VGE"), Viking Global Equities II LP ("VGEII"), Viking Long Fund GP LLC ("VLFGP") Viking Long Fund Master Ltd. ("VLFM") O. Andreas Halvorsen, David C. Ott and Thomas W. Purcell, Jr.

ITEM 2(b). ADDRESS OF PRINCIPAL OFFICE OR, IF NONE, RESIDENCE:
The business address of each of the Reporting Persons is 55 Railroad Avenue, Greenwich, CT 06830.

ITEM 2(c). CITIZENSHIP:
VGE, VGEII, VGI,are each Delaware limited partnerships,VLFM is a Cayman Island Corporation, and VGP and VLFGP are both Delaware limited liability company. O. Andreas Halvorsen is a citizen of Norway. David C. Ott and Thomas W. Purcell, Jr. are citizens of the United States.

ITEM 2(d). TITLE OF CLASS OF SECURITIES:
Class A Common Stock, no par value

ITEM 2(e). CUSIP NUMBER: 037604105

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:

(a) [ ] Broker or dealer registered under Section 15 of the Act

(b) [ ] Bank as defined in Section 3(a)(6) of the Act

(d) [ ] Investment Company registered under Section 8 of the Investment Company Act of 1940

(e) [ ] Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940: see Rule 13d-
1(b)(1)(ii)(E)

(f) [ ] Employee Benefit Plan, Pension Fund which is subject to the provisions of the Employee Retirement Income Security Act of 1974 or Endowment Fund; see Rule 13d-
1(b)(1)(ii)(F)

Schedule 13G/A PAGE 12 OF 15

 (g) [ ] Parent Holding Company, in accordance with Rule 13d-
 1(b)(ii)(G);

 (h) [ ] Savings Associations as defined in Section 3(b) of the
 Federal Deposit Insurance Act;

 (i) [ ] Church Plan that is excluded from the definition of an
 investment company under Section 3(c)(14) of the
 Investment Company Act of 1940;

(j) [ ] A non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J)

(K) [ ] Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

ITEM 4. OWNERSHIP.

A. VGI
(a) Amount beneficially owned 95,000
(b) Percent of class: .1% (All percentages herein are based on 154,410,000 shares of Common Stock reported to be outstanding on the Company's 10-Q as of December 29, 2009)
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 95,000
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 95,000

VGI provides managerial services to VGE, VGEII, Viking Long Fund LP and Viking Long Fund Intermediate LP. VGI is also party to an investment management agreement with VGE III Portfolio Ltd., Viking Long Fund III Ltd and Viking Long Fund Master Ltd, companies organized under the aws of the Cayman Islands, pursuant to which VGI performs managerial services in connection with such accounts.VGI have authority to dispose of and vote securities held in such accounts. VGI does not own directly any shares of Common Stock.

Schedule 13G/A PAGE 13 of 15


 B. VGP
 (a) Amount beneficially owned: 95,000
 (b) Percent of class: .1%
 (c) Number of shares as to which such person has:
 (i) sole power to vote or to direct the vote
 0
 (ii) shared power to vote or to direct the vote
 95,000

(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 95,000

VGP, as the general partner of VGE and VGEII, has the power to dispose of and vote the shares of common stock directly owned by VGE and VGEII. VGP is a party to an investment management agreement with VGE III Portfolio Ltd. a company organized under the laws of the Cayman Islands, pursuant to which VGP has investment authority with respect to securities held in such accounts. VGP has authority to dispose of and vote securities held in such accounts.VGP does not own directly any shares of common stock.

Based on Rule 13d-3 of the Securities Exchange Act of 1934, as amended, (the "Act"), VGP and VGI may each be deemed to own beneficially shares directly held by VGE, VGEII and VGE III Portfolio Ltd, and VLFGP and VGI may each be deemed to own benefically shares directly held by VLFM.

C. VLFGP
(a) Amount beneficially owned: 0
(b) Percent of class: 0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 0
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 0

VLFGP , as the general partner of VLFM, has the power to dispose of and vote the shares of common stock directly owned by VLFM. VLFGP does not own directly any shares of common stock.

D. VGE
(a) Amount beneficially owned: 91,100
(b) Percent of class: .1%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 91,100
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 91,100

VGE has the power to dispose of and the power to vote the shares of Common Stock directly owned by it, which power may be exercised by its general partner, VGP, and by VGI, an affiliate of VGP, that provides managerial services to VGE.

E. VGE II
(a) Amount beneficially owned: 3,900
(b) Percent of class: .003%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 3,900
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 3,900

VGEII has the power to dispose of and the power to vote the shares of Common Stock directly owned by it, which power may be exercised by its general partner, VGP and by VGI, an affiliate of VGP, which provides managerial services to VGEII.

F. VLFM
(a) Amount beneficially owned: 0
(b) Percent of class: 0%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 0
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 0

VLFM has the power to dispose of and the power to vote the shares of common stock directly owned by it, which powermay be exercised by its general partner, VLFGP and by VGI, an affiliate of VLFGP,that provides managerial services to VLFM.

Schedule 13G/A PAGE 14 of 15

G. O. Andreas Halvorsen, David C. Ott and Thomas W. Purcell, Jr.
(a) Amount beneficially owned: 95,000
(b) Percent of class: .1%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote 0
(ii) shared power to vote or to direct the vote 95,000
(iii) sole power to dispose or to direct the disposition of 0
(iv) shared power to dispose or to direct the disposition of 95,000

Messrs. Halvorsen, Ott, and Purcell, as Executive Committee Members of VGI, VGP, and VLFGP, have shared power to dispose of and shared power to vote the Common Stock beneficially owned by VGI, VGP and VLFGP. None of Messrs. Halvorsen, Ott and Purcell directly owns any shares of Common Stock other than through the funds. Based on Rule 13d-3 of the Act, each may be deemed to beneficially own the shares directly owned by VGE, VGE II, VGE III Portfolio Ltd and VLFM.

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 Persons has ceased to be the beneficial owner of more than five percent of the class of securities, check the following.[X]

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. CERTIFICATION. (if filing pursuant to Rule 13d-1(c))
By signing below each Reporting Person certifies that, to the best of its knowledge and belief, the securities referred to above 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 not held in connection with or as a participant in any transaction having that purpose or effect.

Schedule 13G/A PAGE 15 of 15

SIGNATURES

After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct.

DATED: February 16, 2010
 /s/ O. ANDREAS HALVORSEN
 By: O. Andreas Halvorsen - individually and
 as an Executive Committee Member of
 VIKING GLOBAL PERFORMANCE LLC, on behalf
 of itself and VIKING GLOBAL EQUITIES LP,
 VIKING GLOBAL EQUITIES II LP,
 and as an Executive Committee Member of
 Viking Global Partners LLC, on behalf of
 VIKING GLOBAL INVESTORS LP, and as
 an Executive Committee Member of
 VIKING LONG FUND GP LLC on behalf of itself
 and VIKING LONG FUND MASTER LTD.

 /s/ DAVID C. OTT
 By: David C. Ott- individually and
 as an Executive Committee Member of
 VIKING GLOBAL PERFORMANCE LLC, on behalf
 of itself and VIKING GLOBAL EQUITIES LP,
 VIKING GLOBAL EQUITIES II LP,
 and as an Executive Committee Member of
 Viking Global Partners LLC, on behalf of
 VIKING GLOBAL INVESTORS LP, and as
 an Executive Committee Member of
 VIKING LONG FUND GP LLC on behalf of itself
 and VIKING LONG FUND MASTER LTD.


 /s/ THOMAS W. PURCELL, JR.
 By: Thomas W. Purcell, Jr.- individually and
 as an Executive Committee Member of
 VIKING GLOBAL PERFORMANCE LLC, on behalf
 of itself and VIKING GLOBAL EQUITIES LP,
 VIKING GLOBAL EQUITIES II LP,
 and as an Executive Committee Member of
 Viking Global Partners LLC, on behalf of
 VIKING GLOBAL INVESTORS LP, and as
 an Executive Committee Member of
 VIKING LONG FUND GP LLC on behalf of itself
 and VIKING LONG FUND MASTER LTD.

2078839.1

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