SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

SCHEDULE 13D
(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO 240.13d-2(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

AMENDMENT NO. 1*

Arbutus Biopharma Corporation
(Name of Issuer)
 
Common Shares, no par value
(Title of Class of Securities)
 
03879J100
(CUSIP Number)
 

Eric Komitee

General Counsel

55 Railroad Avenue

Greenwich, Connecticut 06830

203-863-5062

(Name, Address and Telephone Number of Person

Authorized to Receive Notices and Communications)

 
June 12, 2017
(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. ☐

Note.            Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

(Continued on following pages)

(Page 1 of 16 Pages)

______________________

* 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 disclosures provided in a prior cover page.

The information required on 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).

 

 

 
 

 

CUSIP No. 03879J100 13D Page 2 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Investors LP

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

PN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer (as defined below) on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the Securities and Exchange Commission (the “SEC”) on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 3 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Performance LLC

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

OO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.

 

 
 

 

CUSIP No. 03879J100 13D Page 4 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Equities LP

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

PN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.

 

 
 

 

 

CUSIP No. 03879J100 13D Page 5 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Equities II LP

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

PN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.

 

 
 

 

 

CUSIP No. 03879J100 13D Page 6 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

VGE III Portfolio Ltd.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

CO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 7 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Long Fund GP LLC

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

OO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 8 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Long Fund Master Ltd.

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

CO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 9 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Opportunities GP LLC

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

OO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 10 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Opportunities Portfolio GP LLC

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

OO

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 11 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Viking Global Opportunities Illiquid Investments Sub-Master LP

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Cayman Islands

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

PN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 12 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

O. Andreas Halvorsen

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

Norway

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

IN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.

 

 
 

 

 

CUSIP No. 03879J100 13D Page 13 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

David C. Ott

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

16,013,540

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,013,540

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

29.1%*

14

TYPE OF REPORTING PERSON

IN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

 

CUSIP No. 03879J100 13D Page 14 of 16 Pages

 

1

NAMES OF REPORTING PERSONS

Daniel S. Sundheim

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(see instructions)

(a) o

(b) x

   
3  SEC USE ONLY
4

SOURCE OF FUNDS (see instructions)

OO (See Item 3)

5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)   o
6

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

 

 

 

NUMBER OF SHARES

BENEFICIALLY OWNED BY
EACH REPORTING

PERSON WITH

 

7

SOLE VOTING POWER

0

8

SHARED VOTING POWER

0

9

SOLE DISPOSITIVE POWER

0

10

SHARED DISPOSITIVE POWER

0

11

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

0

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (see instructions)   o
13

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.0%*

14

TYPE OF REPORTING PERSON

IN

             
*The calculation assumes that there are a total of 55,024,557 Common Shares outstanding as of April 30, 2017, as reported by the Issuer on its Quarterly Report on Form 10-Q for the period ended March 31, 2017, filed with the SEC on May 4, 2017.
 
 

This Amendment No. 1 (the “Amendment”) amends and supplements the Schedule 13D filed by the Reporting Persons on July 13, 2016 (the “Original Schedule 13D”) with respect to the Common Shares of the Issuer. Capitalized terms used in this Amendment and not otherwise defined shall have the same meanings ascribed to them in the Original Schedule 13D.

Item 4.  Purpose of Transaction

This Amendment amends the Original Schedule 13D to add the following paragraph immediately prior to the first paragraph of Item 4 of the Original Schedule 13D:

“As of June 12, 2017, Daniel S. Sundheim has ceased to serve as Chief Investment Officer of VGI and no longer serves as an Executive Committee Member of Viking Global Partners LLC (the general partner of VGI), VGP, VLFGP and Opportunities GP.  Therefore, Mr. Sundheim no longer beneficially owns any Common Shares of the Issuer.”

 

Page 15 of 16 Pages

 

SIGNATURE

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

Dated:  June 14, 2017

   
   
  By: /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 VGE III PORTFOLIO LTD., 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., and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP

 

   
  By: /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 VGE III PORTFOLIO LTD., and as an Executive Committee Member of Viking Global Partners LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as Executive Committee Member of VIKING LONG FUND GP LLC, on behalf of itself and VIKING LONG FUND MASTER LTD., and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP

 

By: /s/Daniel S. Sundheim                          
  By: Daniel S. Sundheim

 

 

Page 16 of 16 Pages