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 *
VIKING GLOBAL PERFORMANCE LLC
  2. Issuer Name and Ticker or Trading Symbol
Axovant Sciences Ltd. [AXON]
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)
55 RAILROAD AVENUE, 
3. Date of Earliest Transaction (Month/Day/Year)
03/18/2019
(Street)

GREENWICH, CT 06830
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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
Common Shares, par value $0.00001 per share 03/18/2019   P(1)   6,666,667 A $ 1.5 105,952,381 I See Footnotes (2) (3) (4) (5)

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 V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
VIKING GLOBAL PERFORMANCE LLC
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
Viking Global Equities LP
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
Viking Global Equities II LP
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
VGE III Portfolio Ltd.
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
Viking Global Equities Master Ltd.
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
Viking Long Fund Master Ltd.
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
Viking Long Fund GP LLC
55 RAILROAD AVENUE
GREENWICH, CT 06830
    X    
HALVORSEN OLE ANDREAS
C/O VIKING GLOBAL INVESTORS LP
280 PARK AVE 35TH
NEW YORK, NY 10017
    X    
Ott David C.
C/O VIKING GLOBAL INVESTORS LP
280 PARK AVENUE
NEW YORK, NY 10017
    X    
Shabet Rose Sharon
C/O VIKING GLOBAL INVESTORS LP
280 PARK AVENUE
NEW YORK, NY 10017
    X    

Signatures

 /s/ O. Andreas Halvorsen (6)(7)   03/19/2019
**Signature of Reporting Person Date

 /s/ David C. Ott (6)(7)   03/19/2019
**Signature of Reporting Person Date

 /s/ Rose Shabet (6)(7)   03/19/2019
**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) The Reporting Persons (as defined below) do not directly own any shares of common stock (the "Common Shares") of Axovant Sciences Ltd. (the "Issuer"). The Reporting Persons acquired Roivant Sciences Ltd. ("Roivant") common shares (the "Roivant Common Shares") on December 8, 2015. Roivant directly holds the 105,952,381 Common Shares reported herein. Due to certain governance arrangements set forth in Roivant's by-laws, as of the appointment of an independent director (within the meaning of that term under Roivant's by-laws) to Roivant's board of directors effective July 8, 2016, the Reporting Persons may be deemed to have beneficial ownership over the Common Shares held by Roivant.
(2) O. Andreas Halvorsen, David C. Ott and Rose S. Shabet are Executive Committee members of certain management entities, including Viking Global Partners LLC, the general partner of Viking Global Investors LP ("VGI"), Viking Global Performance LLC ("VGP"), Viking Long Fund GP LLC ("VLFGP") and Viking Global Opportunities GP LLC ("Opportunities GP"), the sole owner of Viking Global Opportunities Portfolio GP LLC ("Opportunities Portfolio GP").
(3) VGI provides managerial services to various investment funds, including Viking Global Equities LP ("VGE"), Viking Global Equities II LP ("VGE II"), VGE III Portfolio Ltd. ("VGE III"), Viking Global Equities Master Ltd. ("VGEM"), Viking Long Fund Master Ltd. ("VLFM") and Viking Global Opportunities Illiquid Investments Sub-Master LP ("Opportunities Fund", and together with VGE, VGE II, VGE III, VGEM and VLFM, the "Funds" and the Funds together with VGI, VGP, VLFGP, Opportunities GP, Opportunities Portfolio GP, O. Andreas Halvorsen, David C. Ott and Rose S. Shabet, the "Reporting Persons").
(4) VGP is the general partner of VGE, VGE II and VGEM and the investment manager of VGE III. VLFGP serves as the investment manager of VLFM. Opportunities GP serves as the sole member of Opportunities Portfolio GP. Opportunities Portfolio GP serves as the general partner of Opportunities Fund.
(5) The Reporting Persons disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose.
 
Remarks:
(6) The Reporting Persons are jointly filing this Form 4 pursuant to Rule 16a-3(j) under the Exchange Act. (7) Each of O. Andreas Halvorsen, David C. Ott and Rose S. Shabet is signing 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, VGE III PORTFOLIO LTD. and VIKING GLOBAL EQUITIES MASTER LTD., and as an Executive Committee Member of VIKING LONG FUND GP LLC, on behalf of itself and VIKING LONG FUND MASTER LTD. (8) Because no more than 10 reporting persons can file any one Form 4 through the Securities and Exchange Commission's EDGAR system, VGI, Opportunities Fund, Opportunities Portfolio GP and Opportunities GP have jointly filed with the Reporting Persons on a separate Form 4 filing submitted on the same day hereof

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