ATRA Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 3.70%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $218,489.87

Atara Biotherapeutics Insider Trading History Chart

Atara Biotherapeutics Share Price & Price History

^$5.53

▲ +0.23 (4.34%)

As of 04/11/2025 05:00 PM ET

Days: 30 | 90 | 365

Atara Biotherapeutics Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
3/3/2025	Anhco Nguyen	CEO	Sell	3,331	$7.00	$23,317.00	74,123
3/3/2025	Eric J Hyllengren	CFO	Sell	1,211	$7.00	$8,477.00	56,231
3/3/2025	Jill Henrich	EVP	Sell	1,059	$7.00	$7,413.00	18,679
11/18/2024	Anhco Nguyen	CEO	Sell	1,664	$11.20	$18,636.80	77,454
11/18/2024	Eric J Hyllengren	CFO	Sell	1,364	$11.20	$15,276.80	23,392
11/18/2024	Jill Henrich	EVP	Sell	1,000	$11.20	$11,200.00	19,378
8/16/2024	Anhco Nguyen	EVP	Sell	1,821	$6.63	$12,073.23	34,118
8/16/2024	Eric J Hyllengren	CFO	Sell	1,070	$6.63	$7,094.10	24,756
8/16/2024	Pascal Touchon	CEO	Sell	3,038	$6.63	$20,141.94	70,127
5/16/2024	Anhco Nguyen	EVP	Sell	1,715	$15.50	$26,582.50	35,939
5/16/2024	Eric J Hyllengren	CFO	Sell	1,145	$15.50	$17,747.50	25,826
5/16/2024	Pascal Touchon	CEO	Sell	3,260	$15.50	$50,530.00	73,165
3/4/2024	Anhco Nguyen	EVP	Sell	429	$18.00	$7,722.00	37,655
3/4/2024	Pascal Touchon	CEO	Sell	993	$18.00	$17,874.00	76,426
11/16/2023	Anhco Nguyen	EVP	Sell	354	$9.75	$3,451.50	11,085
11/16/2023	Eric J Hyllengren	CFO	Sell	478	$9.75	$4,660.50	8,239
11/16/2023	Pascal Touchon	CEO	Sell	816	$9.75	$7,956.00	26,219
11/13/2023	Carol Giltner Gallagher	Director	Buy	7,160	$5.50	$39,380.00	14,737
11/10/2023	William K Heiden	Director	Buy	4,000	$6.25	$25,000.00	8,360
8/16/2023	K. Amar Murugan	EVP	Sell	346	$41.25	$14,272.50	10,615
8/16/2023	Eric J Hyllengren	CFO	Sell	327	$41.25	$13,488.75	8,718
8/16/2023	Pascal Touchon	CEO	Sell	1,230	$41.25	$50,737.50	27,036
6/27/2023	Pascal Touchon	CEO	Sell	571	$41.50	$23,696.50	28,266
5/16/2023	K. Amar Murugan	EVP	Sell	335	$51.00	$17,085.00	10,837
5/16/2023	Eric J Hyllengren	CFO	Sell	316	$51.00	$16,116.00	9,045
5/16/2023	Pascal Touchon	CEO	Sell	1,190	$51.00	$60,690.00	28,838
3/2/2023	K. Amar Murugan	SVP	Sell	168	$90.75	$15,246.00	11,173
3/2/2023	Jakob Dupont	EVP	Sell	202	$90.75	$18,331.50	11,631
3/2/2023	Pascal Touchon	CEO	Sell	627	$90.75	$56,900.25	30,029
3/2/2023	Utpal Koppikar	CFO	Sell	274	$90.75	$24,865.50	7,279
2/7/2023	Utpal Koppikar	CFO	Sell	99	$136.50	$13,513.50	7,553
11/16/2022	K. Amar Murugan	SVP	Sell	144	$112.25	$16,164.00	5,103
11/16/2022	Jakob Dupont	EVP	Sell	173	$112.25	$19,419.25	6,181
11/16/2022	Pascal Touchon	CEO	Sell	623	$112.25	$69,931.75	17,667
11/16/2022	Utpal Koppikar	CFO	Sell	250	$112.25	$28,062.50	7,653
8/16/2022	K. Amar Murugan	SVP	Sell	137	$125.75	$17,227.75	5,247
8/16/2022	Jakob Dupont	EVP	Sell	164	$125.75	$20,623.00	6,355
8/16/2022	Pascal Touchon	CEO	Sell	592	$126.00	$74,592.00	18,291
8/16/2022	Utpal Koppikar	CFO	Sell	237	$126.00	$29,862.00	7,903
6/27/2022	Pascal Touchon	CEO	Sell	568	$180.00	$102,240.00	18,883
5/17/2022	K. Amar Murugan	SVP	Sell	128	$133.00	$17,024.00	5,349
5/17/2022	Jakob Dupont	EVP	Sell	154	$133.00	$20,482.00	6,520
5/17/2022	Pascal Touchon	CEO	Sell	556	$133.00	$73,948.00	19,452
5/17/2022	Utpal Koppikar	CFO	Sell	223	$133.00	$29,659.00	8,303

See Full Table

SEC Filings (Institutional Ownership Changes) for Atara Biotherapeutics (NASDAQ:ATRA)

70.90% of Atara Biotherapeutics stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Atara Biotherapeutics Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
2/17/2025	Redmile Group LLC	441,701	$5.88M	0.4%	-2.3%	7.668%
2/17/2025	Point72 Asia Singapore Pte. Ltd.	3,603	$48K	0.0%	N/A	0.063%
2/17/2025	Millennium Management LLC	10,133	$0.14M	0.0%	-94.2%	0.176%
2/17/2025	Cubist Systematic Strategies LLC	12,682	$0.17M	0.0%	N/A	0.220%
2/17/2025	Citadel Advisors LLC	267,353	$3.56M	0.0%	+2.6%	4.642%
2/17/2025	Bank of America Corp DE	205,170	$2.73M	0.0%	+0.8%	3.562%
2/14/2025	Northern Trust Corp	11,170	$0.15M	0.0%	N/A	0.194%
2/14/2025	Birchview Capital LP	22,000	$0.29M	0.2%	N/A	0.382%
2/13/2025	Marshall Wace LLP	24,958	$0.33M	0.0%	N/A	0.433%
2/12/2025	Geode Capital Management LLC	54,744	$0.73M	0.0%	+17.2%	0.950%
2/7/2025	Staley Capital Advisers Inc.	50,000	$0.67M	0.0%	+25.0%	0.868%
11/16/2024	Geode Capital Management LLC	46,720	$0.38M	0.0%	+9.5%	0.811%
11/15/2024	State Street Corp	22,353	$0.18M	0.0%	+52.3%	0.388%
11/15/2024	Centiva Capital LP	43,403	$0.35M	0.0%	-69.1%	0.754%
11/14/2024	Vestal Point Capital LP	124,677	$1.01M	0.1%	+11.3%	2.539%
11/13/2024	FMR LLC	25,061	$0.20M	0.0%	+41.7%	0.510%
9/16/2024	Cubist Systematic Strategies LLC	9,271	$79K	0.0%	N/A	0.189%
9/16/2024	Point72 Asia Singapore Pte. Ltd.	6,292	$53K	0.0%	N/A	0.128%
8/15/2024	AQR Capital Management LLC	15,079	$0.13M	0.0%	-99.4%	0.313%
8/15/2024	Point72 Asia Singapore Pte. Ltd.	6,292	$53K	0.0%	N/A	0.131%
8/14/2024	Cubist Systematic Strategies LLC	9,271	$79K	0.0%	N/A	0.192%
8/9/2024	Renaissance Technologies LLC	46,064	$0.39M	0.0%	-95.3%	0.956%
8/6/2024	Acadian Asset Management LLC	119,370	$1.01M	0.0%	-95.5%	2.477%
5/16/2024	Redmile Group LLC	9,263,309	$6.43M	0.2%	+1.7%	7.693%
5/15/2024	Price T Rowe Associates Inc. MD	4,958,150	$3.44M	0.0%	+8,916.3%	4.117%
5/14/2024	Delap Wealth Advisory LLC	41,533	$29K	0.0%	N/A	0.034%
5/10/2024	Acadian Asset Management LLC	2,638,687	$1.83M	0.0%	+49.5%	2.191%
5/10/2024	Vanguard Group Inc.	5,012,938	$3.48M	0.0%	-25.0%	4.163%
5/1/2024	BNP Paribas Financial Markets	383,082	$0.27M	0.0%	+29.3%	0.318%
1/30/2024	Vontobel Holding Ltd.	80,000	$41K	0.0%	N/A	0.078%
1/8/2024	Harbor Capital Advisors Inc.	208,827	$0.11M	0.0%	+368.0%	0.205%
12/6/2023	Citigroup Inc.	453,102	$0.67M	0.0%	-5.9%	0.445%
11/22/2023	Josh Arnold Investment Consultant LLC	200,000	$0.30M	0.3%	+17.6%	0.196%
11/15/2023	Redmile Group LLC	6,280,813	$9.30M	0.4%	+3.8%	6.162%
11/14/2023	683 Capital Management LLC	1,200,000	$1.78M	0.1%	+20.0%	1.177%
11/14/2023	Staley Capital Advisers Inc.	1,000,000	$1.48M	0.1%	+33.3%	0.981%
11/13/2023	Acadian Asset Management LLC	534,393	$0.79M	0.0%	-24.2%	0.524%
11/9/2023	Deutsche Bank AG	388,384	$0.58M	0.0%	-43.6%	0.381%
11/3/2023	Private Advisor Group LLC	95,463	$0.14M	0.0%	+53.0%	0.094%
10/27/2023	Hennion & Walsh Asset Management Inc.	168,916	$0.25M	0.0%	-5.7%	0.167%
10/27/2023	Allspring Global Investments Holdings LLC	38,967	$58K	0.0%	-41.3%	0.039%
10/24/2023	Pinnacle Associates Ltd.	385,364	$0.57M	0.0%	-2.6%	0.381%
10/13/2023	SG Americas Securities LLC	38,743	$57K	0.0%	N/A	0.038%
9/21/2023	Barclays PLC	35,353	$56K	0.0%	-91.2%	0.035%
8/14/2023	683 Capital Management LLC	1,000,000	$1.61M	0.1%	N/A	0.989%
8/14/2023	Graham Capital Management L.P.	85,672	$0.14M	0.0%	N/A	0.085%
8/11/2023	Baupost Group LLC MA	9,773,616	$15.74M	0.3%	+7.1%	9.667%
8/11/2023	B. Metzler seel. Sohn & Co. AG	98,564	$0.16M	0.0%	+100.0%	0.097%
8/11/2023	ExodusPoint Capital Management LP	417,882	$0.67M	0.0%	+52.8%	0.427%
8/10/2023	Private Advisor Group LLC	62,400	$100K	0.0%	N/A	0.064%
8/8/2023	Wasatch Advisors LP	8,283,981	$13.34M	0.1%	-0.8%	8.456%
8/7/2023	Acadian Asset Management LLC	704,694	$1.13M	0.0%	N/A	0.719%
7/28/2023	Vanguard Personalized Indexing Management LLC	31,423	$51K	0.0%	N/A	0.032%
7/24/2023	Allspring Global Investments Holdings LLC	66,404	$0.11M	0.0%	+47.2%	0.068%
7/18/2023	Allspring Global Investments Holdings LLC	66,404	$0.11M	0.0%	+47.2%	0.068%
7/11/2023	Harbor Capital Advisors Inc.	50,076	$81K	0.0%	N/A	0.051%
5/12/2023	Baupost Group LLC MA	9,123,616	$26.46M	0.5%	+12.3%	9.442%
5/12/2023	Profund Advisors LLC	104,484	$0.30M	0.0%	N/A	0.108%
5/11/2023	ExodusPoint Capital Management LP	273,484	$0.79M	0.0%	+346.5%	0.283%
5/11/2023	Citigroup Inc.	911,219	$2.64M	0.0%	-11.1%	0.943%
5/11/2023	E Fund Management Co. Ltd.	32,062	$93K	0.0%	+21.7%	0.033%
5/5/2023	Pinnacle Associates Ltd.	399,316	$1.16M	0.0%	+1.6%	0.413%
5/4/2023	Barclays PLC	400,563	$1.16M	0.0%	+39.4%	0.415%
5/4/2023	Mirae Asset Global Investments Co. Ltd.	23,763	$69K	0.0%	-38.7%	0.025%
4/28/2023	SG Americas Securities LLC	34,707	$0.10M	0.0%	+29.0%	0.036%
4/20/2023	Hennion & Walsh Asset Management Inc.	269,146	$0.78M	0.0%	-2.9%	0.279%
4/14/2023	Raymond James & Associates	188,903	$0.55M	0.0%	+4.0%	0.195%
3/23/2023	MetLife Investment Management LLC	36,073	$0.12M	0.0%	-23.7%	0.038%
2/16/2023	Josh Arnold Investment Consultant LLC	52,000	$0.17M	0.3%	+73.3%	0.054%
2/14/2023	Alpine Global Management LLC	35,475	$0.12M	0.0%	N/A	0.037%
2/10/2023	M28 Capital Management LP	439,300	$1.44M	1.4%	N/A	0.463%
2/10/2023	Globeflex Capital L P	25,783	$85K	0.0%	N/A	0.027%
2/9/2023	Citigroup Inc.	1,025,418	$3.36M	0.0%	-20.5%	1.081%
2/8/2023	Swiss National Bank	193,700	$0.64M	0.0%	+3.9%	0.204%
2/8/2023	Oppenheimer & Co. Inc.	27,350	$90K	0.0%	-9.8%	0.029%
2/7/2023	Mitsubishi UFJ Kokusai Asset Management Co. Ltd.	61,994	$0.20M	0.0%	+26.7%	0.065%
2/2/2023	SG Americas Securities LLC	26,915	$88K	0.0%	-15.3%	0.028%
2/1/2023	Zurcher Kantonalbank Zurich Cantonalbank	13,469	$44K	0.0%	+27.5%	0.014%
2/1/2023	Pinnacle Associates Ltd.	393,198	$1.29M	0.0%	-1.3%	0.414%
1/25/2023	Pinnacle Associates Ltd.	418,873	$1.75M	0.0%	+5.1%	0.441%
1/23/2023	Allspring Global Investments Holdings LLC	45,699	$0.15M	0.0%	+19.7%	0.048%
1/12/2023	Hennion & Walsh Asset Management Inc.	277,201	$0.91M	0.1%	+12.5%	0.292%
11/15/2022	Bayesian Capital Management LP	43,341	$0.16M	0.0%	N/A	0.046%
11/15/2022	Caxton Associates LP	197,026	$0.75M	0.1%	+1,483.2%	0.208%
11/14/2022	Tudor Investment Corp Et Al	220,635	$0.83M	0.0%	+150.7%	0.233%
11/14/2022	683 Capital Management LLC	1,300,000	$4.91M	0.4%	-36.4%	1.370%
11/14/2022	Point72 Asset Management L.P.	30,000	$0.11M	0.0%	-99.2%	0.032%
11/14/2022	Lazard Asset Management LLC	11,922	$45K	0.0%	N/A	0.013%
11/14/2022	MetLife Investment Management LLC	47,290	$0.18M	0.0%	+12.3%	0.050%
11/14/2022	E Fund Management Co. Ltd.	36,673	$0.14M	0.0%	+43.1%	0.039%
11/14/2022	Cipher Capital LP	12,940	$49K	0.0%	N/A	0.014%
11/14/2022	Oppenheimer & Co. Inc.	30,314	$0.12M	0.0%	-11.8%	0.032%
11/14/2022	Hennion & Walsh Asset Management Inc.	246,383	$0.93M	0.1%	+7.8%	0.260%
11/10/2022	Connor Clark & Lunn Investment Management Ltd.	39,307	$0.15M	0.0%	-62.5%	0.042%
11/10/2022	ExodusPoint Capital Management LP	59,942	$0.23M	0.0%	N/A	0.064%
11/9/2022	SVB Wealth LLC	177,017	$0.67M	0.0%	N/A	0.188%
11/7/2022	Nisa Investment Advisors LLC	6,460	$28K	0.0%	+893.8%	0.007%
11/4/2022	Prudential Financial Inc.	42,938	$0.16M	0.0%	N/A	0.046%
11/4/2022	First Republic Investment Management Inc.	10,000	$38K	0.0%	N/A	0.011%
11/3/2022	Creative Planning	67,118	$0.25M	0.0%	+10.5%	0.071%

Data available starting January 2016

See Full Table

Atara Biotherapeutics, Inc. engages in the development of transformative therapies for patients with solid tumors, hematologic cancers, and autoimmune diseases in the United States and the United Kingdom. Its lead product includes Tab-cel (tabelecleucel), a T-cell immunotherapy program that is in Phase 3 clinical trials for the treatment of epstein-barr virus (EBV) driven post-transplant lymphoproliferative disease, as well as nasopharyngeal carcinoma. Its CAR T immunotherapy pipeline products include ATA3219, currently in Phase 1 trials, as well as ATA3431, under preclinical trials for the treatment of B-cell malignancies and autoimmune diseases; and ATA188 that is in Phase 2 clinical trials to treat multiple sclerosis. The company has research collaboration agreements with Memorial Sloan Kettering Cancer Center, and Council of the Queensland Institute of Medical Research. Atara Biotherapeutics, Inc. was incorporated in 2012 and is headquartered in Thousand Oaks, California.

Today's Range

Now: $5.53

$5.16

$5.54

50 Day Range

MA: $7.10

$5.30

$10.51

52 Week Range

Now: $5.53

$5.01

$19.00

Volume

57,867 shs

Average Volume

123,252 shs

Market Capitalization

$32.40 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.32

Who are the company insiders with the largest holdings of Atara Biotherapeutics?: Atara Biotherapeutics' top insider shareholders include:
Anhco Nguyen (CEO)
Pascal Touchon (CEO)
Eric J Hyllengren (CFO)
Anhco Nguyen (EVP)
Jill Henrich (EVP)
Carol Giltner Gallagher (Director)
Amar Murugan (EVP)
William K Heiden (Director)
Learn More about top insider investors at Atara Biotherapeutics.