Atara Biotherapeutics Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

DB:AT2 Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
04 Mar 24	Sell€2,571	Jill Henrich	Individual	3,879	€0.66
04 Mar 24	Sell€16,469	Pascal Touchon	Individual	24,844	€0.66
04 Mar 24	Sell€4,429	Eric Hyllengren	Individual	6,679	€0.66
04 Mar 24	Sell€6,658	K. Murugan	Individual	10,044	€0.66
04 Mar 24	Sell€7,124	Anhco Nguyen	Individual	10,746	€0.66
16 Nov 23	Sell€1,170	Jill Henrich	Individual	3,267	€0.36
16 Nov 23	Sell€4,282	Eric Hyllengren	Individual	11,958	€0.36
16 Nov 23	Sell€2,975	K. Murugan	Individual	8,307	€0.36
16 Nov 23	Sell€7,309	Pascal Touchon	Individual	20,409	€0.36
16 Nov 23	Sell€4,400	Manher Joshi	Individual	12,287	€0.36
16 Nov 23	Sell€3,171	Anhco Nguyen	Individual	8,856	€0.36
14 Nov 23	Buy€62,853	Carol Gallagher	Individual	270,000	€0.29
10 Nov 23	Buy€23,739	William Heiden	Individual	100,000	€0.24
10 Nov 23	Buy€94,976	Eric Dobmeier	Individual	446,825	€0.21
16 Aug 23	Sell€5,071	Jill Henrich	Individual	3,346	€1.52
16 Aug 23	Sell€10,566	Manher Joshi	Individual	6,975	€1.52
16 Aug 23	Sell€13,136	K. Murugan	Individual	8,672	€1.52
16 Aug 23	Sell€22,915	Anhco Nguyen	Individual	15,126	€1.52
16 Aug 23	Sell€46,600	Pascal Touchon	Individual	30,766	€1.52
16 Aug 23	Sell€12,400	Eric Hyllengren	Individual	8,186	€1.52
27 Jun 23	Sell€21,650	Pascal Touchon	Individual	14,291	€1.51
16 May 23	Sell€15,734	K. Murugan	Individual	8,389	€1.88
16 May 23	Sell€35,709	Charlene Banard	Individual	19,040	€1.88
16 May 23	Sell€14,852	Eric Hyllengren	Individual	7,918	€1.88
16 May 23	Sell€55,825	Pascal Touchon	Individual	29,766	€1.88

Insider Trading Volume

Insider Buying: AT2 insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of AT2?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	20,300	0.017%
Individual Insiders	1,868,392	1.57%
Hedge Funds	26,901,571	22.5%
General Public	40,767,129	34.2%
Institutions	49,801,838	41.7%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 23.5%.

Top Shareholders

Top 25 shareholders own 59.96% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.63%	Redmile Group, LLC	10,301,409	€6.9m	64%	0.31%
8.43%	EcoR1 Capital, LLC	10,067,043	€6.7m	0%	0.23%
5.94%	BlackRock, Inc.	7,087,213	€4.7m	-7.91%	no data
5.6%	The Vanguard Group, Inc.	6,686,043	€4.5m	1.21%	no data
5.47%	Citadel Advisors LLC	6,533,119	€4.4m	2,380%	no data
3.09%	UBS Asset Management AG	3,693,225	€2.5m	6,210%	no data
2.46%	AQR Capital Management, LLC	2,930,283	€2.0m	247%	no data
2.45%	Millennium Management LLC	2,920,980	€1.9m	793%	no data
2.33%	State Street Global Advisors, Inc.	2,784,200	€1.9m	10.4%	no data
1.8%	Geode Capital Management, LLC	2,150,150	€1.4m	3.54%	no data
1.7%	JP Morgan Asset Management	2,026,116	€1.3m	-75.9%	no data
1.57%	Kleiner Perkins Caufield & Byers	1,876,650	€1.3m	0%	0.26%
1.49%	Morgan Stanley, Investment Banking and Brokerage Investments	1,779,960	€1.2m	-12.2%	no data
1.48%	Acadian Asset Management LLC	1,765,554	€1.2m	230%	no data
0.92%	Medical Strategy GmbH, Asset Management Arm	1,097,247	€731.0k	-1.79%	0.05%
0.87%	D. E. Shaw & Co., L.P.	1,033,992	€688.9k	-73.6%	no data
0.84%	Antipodean Advisors LLC	1,000,000	€666.2k	0%	3.4%
0.84%	Staley Capital Advisers, Inc.	1,000,000	€666.2k	0%	0.03%
0.71%	Northern Trust Global Investments	845,427	€563.3k	5.82%	no data
0.66%	GSA Capital Partners LLP	784,367	€522.6k	0%	0.05%
0.65%	Jacobs Levy Equity Management Inc	780,986	€520.3k	37.8%	no data
0.62%	Charles Schwab Investment Management, Inc.	745,145	€496.4k	0%	no data
0.52%	Renaissance Technologies LLC	622,911	€415.0k	-24.9%	no data
0.45%	Goldman Sachs Group, Investment Banking and Securities Investments	536,269	€357.3k	-86.8%	no data
0.44%	Pacific Heights Asset Management, LLC	525,000	€349.8k	0%	0.03%