What does CUSIP 046513107 represent in this 13F holders report?

CUSIP 046513107 is the security identifier for ATRA - Atara Biotherapeutics, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held ATRA - Atara Biotherapeutics, Inc. - Common Stock in Q4 2020?

144 institutional investors reported ATRA - Atara Biotherapeutics, Inc. - Common Stock for Q4 2020. Use the holders table for investor-level position and value details.

Atara Biotherapeutics, Inc. - Common Stock (ATRA)

CUSIP: 046513107

Q4 2020 13F Holders as of 31 Dec 2020

Type / Class: Equity / Common Stock
Shares outstanding: 8,165,808
Total 13F shares: 86,646,814
Share change: +2,257,044
Total reported value: $1,700,929,395
Put/Call ratio: 130%
Price per share: $19.63
Number of holders: 144
Value change: +$61,203,871
Number of buys: 81
Number of sells: 60

Quarterly Holders Quick Answers

What is CUSIP 046513107?
CUSIP 046513107 identifies ATRA - Atara Biotherapeutics, Inc. - Common Stock in SEC institutional holdings data.

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Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2021
Previous quarter: Q3 2020

Recent filing periods for CUSIP 046513107:

Q4 2025 Q3 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024 Q4 2023

Top shareholders of ATRA - Atara Biotherapeutics, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BAUPOST GROUP LLC/MA	13F	Company	122%	9,922,030	$128,590,000	—	30 Sep 2020	13F
Redmile Group, LLC	13F	Company	85%	6,938,870	$89,928,000	—	30 Sep 2020	13F
MAVERICK CAPITAL LTD	13F	Company	83%	6,746,292	$87,432,000	—	30 Sep 2020	13F
BlackRock Finance, Inc.	13F	Company	72%	5,891,976	$76,362,000	—	30 Sep 2020	13F
JPMORGAN CHASE & CO	13F	Company	68%	5,578,675	$72,969,000	—	30 Sep 2020	13F
VANGUARD GROUP INC	13F	Company	59%	4,799,238	$62,197,000	—	30 Sep 2020	13F
Consonance Capital Management LP	13F	Company	57%	4,685,527	$60,724,000	—	30 Sep 2020	13F
STATE STREET CORP	13F	Company	40%	3,231,040	$41,874,000	—	30 Sep 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	39%	3,165,214	$41,021,000	—	30 Sep 2020	13F
WASATCH ADVISORS LP	13F	Company	33%	2,733,476	$35,426,000	—	30 Sep 2020	13F
Artal Group S.A.	13F	Company	28%	2,250,000	$29,160,000	—	30 Sep 2020	13F
NORGES BANK	13F	Company	26%	2,158,846	$27,979,000	—	30 Sep 2020	13F
FMR LLC	13F	Company	24%	1,996,373	$25,873,000	—	30 Sep 2020	13F
BRIDGER MANAGEMENT, LLC	13F	Company	19%	1,582,360	$20,507,000	—	30 Sep 2020	13F
Camber Capital Management LP	13F	Company	17%	1,400,000	$18,144,000	—	30 Sep 2020	13F
CANADA PENSION PLAN INVESTMENT BOARD	13F	Company	17%	1,382,041	$17,911,000	—	30 Sep 2020	13F
CREDIT SUISSE AG/	13F	Company	17%	1,362,589	$17,659,000	—	30 Sep 2020	13F
MORGAN STANLEY	13F	Company	16%	1,309,943	$16,977,000	—	30 Sep 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	13%	1,063,435	$13,782,000	—	30 Sep 2020	13F
Antipodean Advisors LLC	13F	Company	12%	1,000,000	$12,960,000	—	30 Sep 2020	13F
NORTHERN TRUST CORP	13F	Company	11%	897,594	$11,633,000	—	30 Sep 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	10%	831,882	$10,781,000	—	30 Sep 2020	13F
Nuveen Asset Management, LLC	13F	Company	9.6%	786,735	$10,196,000	—	30 Sep 2020	13F
Alberta Investment Management Corp	13F	Company	9.1%	744,830	$9,653,000	—	30 Sep 2020	13F
DEUTSCHE BANK AG\	13F	Company	8.5%	696,177	$9,022,000	—	30 Sep 2020	13F
PINNACLE ASSOCIATES LTD	13F	Company	6.6%	540,577	$7,006,000	—	30 Sep 2020	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	6.5%	531,871	$6,893,000	—	30 Sep 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	5.9%	482,336	$6,252,000	—	30 Sep 2020	13F
CITADEL ADVISORS LLC	13F	Company	5.6%	460,127	$5,964,000	—	30 Sep 2020	13F
Ikarian Capital, LLC	13F	Company	5.2%	426,800	$5,531,000	—	30 Sep 2020	13F
TWO SIGMA ADVISERS, LP	13F	Company	4.8%	391,800	$5,078,000	—	30 Sep 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	4.6%	379,489	$4,917,000	—	30 Sep 2020	13F
D. E. Shaw & Co., Inc.	13F	Company	3.9%	319,903	$4,146,000	—	30 Sep 2020	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	3.7%	303,416	$3,932,000	—	30 Sep 2020	13F
Bank of New York Mellon Corp	13F	Company	3.4%	275,885	$3,576,000	—	30 Sep 2020	13F
PACIFIC HEIGHTS ASSET MANAGEMENT LLC	13F	Company	3.4%	275,000	$3,564,000	—	30 Sep 2020	13F
MARSHALL WACE, LLP	13F	Company	3.4%	274,670	$3,560,000	—	30 Sep 2020	13F
683 Capital Management, LLC	13F	Company	2.7%	220,848	$2,862,000	—	30 Sep 2020	13F
AXA S.A.	13F	Company	2.5%	200,255	$2,595,000	—	30 Sep 2020	13F
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	13F	Company	2.3%	188,000	$2,436,000	—	30 Sep 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	2.2%	177,392	$2,299,000	—	30 Sep 2020	13F
CITIGROUP INC	13F	Company	2.1%	175,371	$2,273,000	—	30 Sep 2020	13F
Alyeska Investment Group, L.P.	13F	Company	1.9%	158,906	$2,059,000	—	30 Sep 2020	13F
12 West Capital Management LP	13F	Company	1.9%	158,700	$2,057,000	—	30 Sep 2020	13F
Trellus Management Company, LLC	13F	Company	1.9%	155,000	$2,009,000	—	30 Sep 2020	13F
Swiss National Bank	13F	Company	1.9%	154,100	$1,997,000	—	30 Sep 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	1.8%	150,300	$1,948,000	—	30 Sep 2020	13F
STATE OF WISCONSIN INVESTMENT BOARD	13F	Company	1.7%	137,303	$1,779,000	—	30 Sep 2020	13F
PDT Partners, LLC	13F	Company	1.6%	127,900	$1,658,000	—	30 Sep 2020	13F
JACOBS LEVY EQUITY MANAGEMENT, INC	13F	Company	1.4%	117,539	$1,523,000	—	30 Sep 2020	13F

Institutional Holders of Atara Biotherapeutics, Inc. - Common Stock (ATRA) as of Q4 2020

As of 31 Dec 2020, Atara Biotherapeutics, Inc. - Common Stock (ATRA) was held by 144 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 86,646,814 shares. The largest 10 holders included BAUPOST GROUP LLC/MA, MAVERICK CAPITAL LTD, Redmile Group, LLC, BlackRock Inc., JPMORGAN CHASE & CO, VANGUARD GROUP INC, MORGAN STANLEY, Consonance Capital Management LP, STATE STREET CORP, and Artal Group S.A.. This page lists 144 institutional shareholders reporting positions in this security for the Q4 2020 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2020 vs Q3 2020 Across Filers

Q3 2020 holders

138

Q4 2020 holders

144

Holder diff

Investor	Q3 2020 Shares	Q4 2020 Shares	Share Diff	Share Chg %	Q3 2020 Value $	Q4 2020 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.