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Filing Details

Accession Number:: 0001567619-24-000004
Form Type:: 13G Filing
Publication Date:: 2024-01-08 19:00:00

Filed By:: Baupost Group
Company:: Atara Biotherapeutics Inc. (NASDAQ:ATRA)
Filing Date:: 2024-01-09
SEC Url:: 13G Filing

Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name	Sole Voting Power	Shared Voting Power	Sole Dispositive Power	Shared Dispositive Power	Aggregate Amount Owned Power	Percent of Class
The Baupost Group	0	0	0	0	0	0%
Baupost Group GP	0	0	0	0	0	0%
Seth A. Klarman	0	0	0	0	0	0%

Filing

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 07)*

Atara Biotherapeutics, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

046513107

(CUSIP Number)

December 31, 2023

(Date of Event Which Requires Filing of this Statement)

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

x Rule 13d-1(b)

o 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


1	NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	The Baupost Group, L.L.C. 04-3402144

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) o
	(b) x

3	SEC USE ONLY



4	CITIZENSHIP OR PLACE OF ORGANIZATION

	State of Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING POWER

			0

		6	SHARED VOTING POWER

			0

		7	SOLE DISPOSITIVE POWER

			0

		8	SHARED DISPOSITIVE POWER

			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	0

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

	o

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	0%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	IA
	FOOTNOTES

CUSIP No.

046513107


1	NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Baupost Group GP, L.L.C. 82-3254604

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) o
	(b) x

3	SEC USE ONLY



4	CITIZENSHIP OR PLACE OF ORGANIZATION

	State of Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING POWER

			0

		6	SHARED VOTING POWER

			0

		7	SOLE DISPOSITIVE POWER

			0

		8	SHARED DISPOSITIVE POWER

			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	0

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

	o

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	0%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	HC
	FOOTNOTES

CUSIP No.

046513107


1	NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Seth A. Klarman

2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) o
	(b) x

3	SEC USE ONLY



4	CITIZENSHIP OR PLACE OF ORGANIZATION

	The United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:		5	SOLE VOTING POWER

			0

		6	SHARED VOTING POWER

			0

		7	SOLE DISPOSITIVE POWER

			0

		8	SHARED DISPOSITIVE POWER

			0

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	0

10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

	o

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	0%

12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	HC
	FOOTNOTES

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.

	The Baupost Group, L.L.C.

Date: January 09, 2024	By:	/s/ Seth A. Klarman
		Name: Seth A. Klarman
		Title: Chief Executive Officer

	Baupost Group GP, L.L.C.

Date: January 09, 2024	By:	/s/ Seth A. Klarman
		Name: Seth A. Klarman
		Title: Managing Member

	Seth A. Klarman

Date: January 09, 2024	By:	/s/ Seth A. Klarman
		Name: Seth A. Klarman

Footnotes:

Item 3, Item 4 and Item 7

This statement on Schedule 13G is being jointly filed by The Baupost Group, L.L.C. ("Baupost"), Baupost Group GP, L.L.C. (“BG GP”) and Seth A. Klarman. Baupost is a registered investment adviser and acts as an investment adviser and general partner to various private investment limited partnerships. Securities reported on this statement on Schedule 13G as being beneficially owned by Baupost were purchased on behalf of certain of such partnerships. BG GP, as the Manager of Baupost, and Seth A. Klarman, as the Managing Member of BG GP and a controlling person of Baupost, may be deemed to have beneficial ownership under Section 13 of the Securities Exchange Act of 1934, as amended, of the securities beneficially owned by Baupost.

Pursuant to Rule 13d-4, Seth A. Klarman and BG GP declare that the filing of this statement on Schedule 13G shall not be deemed an admission by either or both of them that they are, for the purposes of Section 13 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any securities covered by this statement on Schedule 13G.

Attention:

Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001)