UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G
Under the Securities Exchange Act of 1934

(Amendment No. 2)*

 

 

ý Rule 13d-1(b)

¨ 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).

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Item 1(a).  Name of Issuer:

Atara Biotherapeutics, Inc.

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

611 Gateway Blvd, Suite 900

South San Francisco CA 94080

Item 2(a).  Names of Persons Filing:

Redmile Group, LLC (“Redmile”)

Jeremy C. Green (“Jeremy Green”)

Item 2(b).  Address of Principal Business Office or, if None, Residence:

The principal business address of each reporting person is One Letterman Drive, Bldg D, Ste D3-300, San Francisco, CA 94129.

Item 2(c).  Citizenship:

Reference is made to Item 4 of pages 2–3 of this Schedule 13G (this “Schedule”), which Items are incorporated by reference herein.

Item 2(d).  Title of Class of Securities:

Common Stock, $.0001 par value per share

Item 2(e).  CUSIP Number:

046513107

Item 3.      If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

¨     (a)    Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

¨     (b)    Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

¨     (c)    Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

¨     (d)    Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).

ý     (e)    An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

¨     (f)    An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

¨     (g)    A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

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¨     (h)    A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

¨     (i)    A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the     Investment Company Act of 1940 (15 U.S.C. 80a-3);

¨     (j)    Group, in accordance with §240.13d-1(b)(1)(ii)(J).

Item 4.      Ownership.

Reference is hereby made to Items 5-9 and 11 of this Schedule above, which Items are incorporated by reference 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.

N/A

Item 7.      Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

If a parent holding company or control person has filed this schedule, pursuant to Rule 13d-1(b)(1)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company or control person has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.

See Exhibit B attached hereto.

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 the undersigned certify that, to the best of their knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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

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