0001172661-17-000938.txt : 20170421 0001172661-17-000938.hdr.sgml : 20170421 20170421162015 ACCESSION NUMBER: 0001172661-17-000938 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20170421 DATE AS OF CHANGE: 20170421 GROUP MEMBERS: BLAKE GOODNER GROUP MEMBERS: BRIDGER HEALTHCARE, LTD. GROUP MEMBERS: ROBERTO MIGNONE SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Atara Biotherapeutics, Inc. CENTRAL INDEX KEY: 0001604464 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 460920988 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-88393 FILM NUMBER: 17776131 BUSINESS ADDRESS: STREET 1: 611 GATEWAY BLVD STREET 2: SUITE 900 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 BUSINESS PHONE: 650-278-8930 MAIL ADDRESS: STREET 1: 611 GATEWAY BLVD STREET 2: SUITE 900 CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: BRIDGER MANAGEMENT, LLC CENTRAL INDEX KEY: 0001166309 IRS NUMBER: 582553507 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 90 PARK AVENUE, STREET 2: 40TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10016 BUSINESS PHONE: 212-918-0820 MAIL ADDRESS: STREET 1: 90 PARK AVENUE, STREET 2: 40TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10016 FORMER COMPANY: FORMER CONFORMED NAME: BRIDGER MANAGEMENT LLC DATE OF NAME CHANGE: 20020130 SC 13G 1 bridger-atra041117.htm 13G

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

 

SCHEDULE 13G

 

Under the Securities Exchange Act of 1934

(Amendment No. )*



Atara Biotherapeutics, Inc.

(Name of Issuer)

 

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

 

046513107

(CUSIP Number)

 

 

April 11, 2017
(Date of Event Which Requires Filing of this Statement)

 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

 

o Rule 13d-1(b)

x Rule 13d-1(c)

o 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).

 
 

CUSIP No.  046513107
 SCHEDULE 13G
Page 2 of 10 Pages

 

         
1
NAME OF REPORTING PERSONS
 
BRIDGER MANAGEMENT, LLC
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) x
 
3
SEC USE ONLY
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
Delaware
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5
SOLE VOTING POWER
 
0
6
SHARED VOTING POWER
 
1,524,191
7
SOLE DISPOSITIVE POWER
 
0
8
SHARED DISPOSITIVE POWER
 
1,524,191
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,524,191
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
 
 
o
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
5.2% (1)
12
TYPE OF REPORTING PERSON
 
IA

(1) Based on 29,089,911 shares of common stock, par value $0.0001 per share ("Common Stock") outstanding as of February 15, 2017, as the Issuer reported in its Form 10-K filed with the SEC on March 9, 2017.

 
 

CUSIP No.  046513107
 SCHEDULE 13G
Page 3 of 10 Pages

 

         
1
NAME OF REPORTING PERSONS
 
ROBERTO MIGNONE
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) x
 
3
SEC USE ONLY
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
United States
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5
SOLE VOTING POWER
 
0
6
SHARED VOTING POWER
 
1,524,191
7
SOLE DISPOSITIVE POWER
 
0
8
SHARED DISPOSITIVE POWER
 
1,524,191
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,524,191
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
 
 
o
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
5.2% (1)
12
TYPE OF REPORTING PERSON
 
IN

(1) Based on 29,089,911 shares of Common Stock outstanding as of February 15, 2017, as the Issuer reported in its Form 10-K filed with the SEC on March 9, 2017.

 
 

CUSIP No.  046513107
 SCHEDULE 13G
Page 4 of 10 Pages

 

         
1
NAME OF REPORTING PERSONS
 
BRIDGER HEALTHCARE, LTD.
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) x
 
3
SEC USE ONLY
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
Cayman Islands
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5
SOLE VOTING POWER
 
0
6
SHARED VOTING POWER
 
1,524,191
7
SOLE DISPOSITIVE POWER
 
0
8
SHARED DISPOSITIVE POWER
 
1,524,191
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,524,191
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
 
 
o
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
5.2% (1)
12
TYPE OF REPORTING PERSON
 
CO
(1) Based on 29,089,911 shares of Common Stock outstanding as of February 15, 2017, as the Issuer reported in its Form 10-K filed with the SEC on March 9, 2017.
 
 

CUSIP No.  046513107
 SCHEDULE 13G
Page 5 of 10 Pages

 

         
1
NAME OF REPORTING PERSONS
 
BLAKE GOODNER
2
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) x
 
3
SEC USE ONLY
 
 
4
CITIZENSHIP OR PLACE OF ORGANIZATION
 
United States
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
5
SOLE VOTING POWER
 
0
6
SHARED VOTING POWER
 
1,524,191
7
SOLE DISPOSITIVE POWER
 
0
8
SHARED DISPOSITIVE POWER
 
1,524,191
9
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
1,524,191
10
CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
 
 
o
11
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
 
5.2% (1)
12
TYPE OF REPORTING PERSON
 
IN
(1) Based on 29,089,911 shares of Common Stock outstanding as of February 15, 2017, as the Issuer reported in its Form 10-K filed with the SEC on March 9, 2017.
 
 

 

CUSIP No. 046513107
 SCHEDULE 13G
Page 6 of  10 Pages

 

Item 1.(a) Name of Issuer

Atara Biotherapeutics, Inc.

Item 1.(b) Address of Issuer’s Principal Executive Offices

611 Gateway Boulevard, Suite 900, South San Francisco, CA 94080

Item 2.(a, b,  c) Names of Person Filing, Address of Principal Business Office, Citizenship:

Bridger Management, LLC, a Delaware limited liability company, 90 Park Avenue – 40th Floor, New York, NY 10016.

Mr. Roberto Mignone (“Mr. Mignone”), 90 Park Avenue – 40th Floor, New York, NY 10016. Mr. Mignone is a United States citizen.

Bridger Healthcare, Ltd., a Cayman Islands exempted company, 90 Park Avenue - 40th Floor, New York, NY 10016.

Mr. Blake Goodner (“Mr. Goodner”), 90 Park Avenue – 40th Floor, New York, NY 10016. Mr. Goodner is a United States citizen.

  

Item 2.(d) Title of Class of Securities

Common Stock, par value $0.0001 per share

Item 2.(e) CUSIP No.:

046513107

Item 3.Not Applicable.

 

CUSIP No. 046513107
 SCHEDULE 13G
Page 7 of 10 Pages

 

 

Item 4. Ownership

Information with respect to the Reporting Persons' ownership of the Common Stock as of April 21, 2017, is incorporated by reference to items (5) - (9) and (11) of the cover page of the respective Reporting Person.

Bridger Healthcare, Ltd. is the owner of record of the Common Stock reported herein. Bridger Management, LLC is the investment adviser to Bridger Healthcare, Ltd. Mr. Mignone is the manager of Bridger Management, LLC and Mr. Goodner is the Portfolio Manager of Bridger Healthcare, Ltd. Each of Bridger Management, LLC, Mr. Mignone and Mr. Goodner may be deemed to share beneficial ownership of the Common Stock reported herein.

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

Item 6. Ownership of More Than Five Percent on Behalf of Another Person

See Item 4.

Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company or Control Person

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

By signing below I certify that, to the best of my 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 are not held in connection with or as a participant in any transaction having that purpose or effect.

[Signature Page Follows:] 

 

 
CUSIP No. 046513107
 SCHEDULE 13G
Page 8 of 10 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: April 21, 2017

 

 

 

  BRIDGER MANAGEMENT, LLC
       
  By:  /s/ Roberto Mignone
    Roberto Mignone, Manager
       
       
   /s/ Roberto Mignone
    Roberto Mignone, Individually
   
 

BRIDGER HEALTHCARE, LTD.

By:  Bridger Management, LLC, its investment manager

       
  By:  /s/ Roberto Mignone
    Roberto Mignone, Manager
       
       
   /s/ Blake Goodner
    Blake Goodner, Individually

       

 

 
CUSIP No. 046513107
 SCHEDULE 13G
Page 9 of 10 Pages

 

EXHIBIT INDEX

 

 Exhibit I: Joint Filing Statement Pursuant to Rule 13d-1(k)

 

 
CUSIP No. 046513107
 SCHEDULE 13G
Page 10 of 10 Pages

 

Exhibit I

 

JOINT FILING STATEMENT

 

PURSUANT TO RULE 13d-1(k)

 

The undersigned acknowledge and agree that the foregoing statement on Schedule 13G, is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G, shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

 

DATED: April 21, 2017

 

  BRIDGER MANAGEMENT, LLC
       
  By:  /s/ Roberto Mignone
    Roberto Mignone, Manager
       
       
   /s/ Roberto Mignone
    Roberto Mignone, Individually
   
 

BRIDGER HEALTHCARE, LTD.

By:  Bridger Management, LLC, its investment manager

       
  By:  /s/ Roberto Mignone
    Roberto Mignone, Manager
       
       
   /s/ Blake Goodner
    Blake Goodner, Individually