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Atara Biotherapeutics, Inc.

ATRA Net selling
CIK 0001604464 #4357 in the set updated 17 Sep 2026
Bought (120 mo)
$7.41M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$55.24M
$0.00 on a plan · $10.34M straight out of an exercise
Sold at will
$44.91M
461 of 521 sales
Net
−$47.83M
−$37.50M against sales at will

By person

37 insiders · 540 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Ciechanover Isaac E.
Chief Executive Officer
—
$20.75M (224)
−$20.75M
622,930
6.21%
$5.98M
−24.7%
Clark Mitchall G.
EVP & Chief R & QA Officer
—
$6.46M (15) scheduled
−$6.46M
107,972
1.08%
$1.04M
+15.2%
Haqq Christopher
EVP, R&D & Chief Scientific Of
—
$6.33M (31)
−$6.33M
274,631
2.74%
$2.64M
−7.4%
EcoR1 Capital, LLC entity
10% owner
$4.74M (1)
—
+$4.74M
1,552,000
15.46%
$14.90M
+48.6%
MCGRATH JOHN
EVP & Chief Financial Officer
—
$3.61M (21)
−$3.61M
88,762
0.8843%
$852.12K
−10.6%
MARCUS JOEL S
Director
—
$3.39M (3)
−$3.39M
899,855
8.96%
$8.64M
−2.3%
Panacea Innovation Ltd entity
10% owner
$856.79K (2)
$3.65M (2)
−$2.80M
1,011,000
10.07%
$9.71M
−1.2%
Newell Joe
Chief Operations Officer
—
$2.42M (46) scheduled
−$2.42M
113,097
1.13%
$1.09M
+223.1%
Touchon Pascal
Director
—
$1.72M (24)
−$1.72M
77,955
0.7766%
$748.37K
—
Soffer Gad
EVP & Chief Strategy Officer
—
$1.17M (13)
−$1.17M
243,966
2.43%
$2.34M
+68.0%
Porter Derrell
SVP, Head of Global Commercial
—
$1.03M (3) scheduled
−$1.03M
31,688
0.3157%
$304.20K
+21.1%
Cherry Brian N
Director
$999.99K (1)
—
+$999.99K
166,486
1.66%
$1.60M
+334.5%
Gallagher Carol Giltner
Director
$68.21K (2)
$1.06M (11)
−$995.81K
33,012
0.3289%
$316.92K
—
Fust Matthew K
Director
—
$795.70K (2)
−$795.70K
30,188
0.3007%
$289.80K
—
Turner Heather D
Former EVP, GC & Sec.
—
$656.28K (8)
−$656.28K
69,494
0.6923%
$667.14K
+42.2%
Koppikar Utpal
Chief Financial Officer
$73.60K (1)
$705.32K (24)
−$631.72K
181,978
1.81%
$1.75M
+2,370%
Dupont Jakob
EVP, Head of R&D
—
$572.97K (13) scheduled
−$572.97K
290,794
2.90%
$2.79M
—
Yarema Kristin
Chief Commercial Officer
$500.37K (3)
$11.07K (1)
+$489.30K
171,415
1.71%
$1.65M
+7,458%
Nguyen AnhCo
President and CEO
—
$315.58K (22)
−$315.58K
132,775
1.32%
$1.27M
—
Murugan Amar
EVP, Chief Legal Officer
—
$305.96K (21)
−$305.96K
26,827
0.2673%
$257.54K
—
DOBMEIER ERIC
Director
$140.34K (2)
—
+$140.34K
563,325
5.61%
$5.41M
+10,142%
Grant-Huerta Yanina
Chief Accounting Officer
—
$92.53K (12)
−$92.53K
49,636
0.4945%
$476.51K
+25.1%
Hyllengren Eric J
Former EVP, CFO & COO
—
$87.64K (12)
−$87.64K
56,231
0.5602%
$539.82K
—
Henrich Jill
EVP, Chief Regulatory Officer
—
$50.47K (9)
−$50.47K
18,679
0.1861%
$179.32K
—
Banard Charlene A.
EVP, Chief Technical Officer
—
$38.78K (1)
−$38.78K
276,010
2.75%
$2.65M
+77.7%
HEIDEN WILLIAM K
Director
$25.33K (1)
—
+$25.33K
34,188
0.3406%
$328.20K
—
Joshi Manher
EVP, Chief Medical Officer
—
$16.31K (3)
−$16.31K
171,284
1.71%
$1.64M
−10.1%
Adiumentum Capital Fund I LP entity
Director
—
—
—
1,209,395
12.05%
$11.61M
+6.7%
Redmile Group, LLC entity
Director
—
—
—
636,852
6.34%
$6.11M
+44.2%
SEIDENBERG BETH C
Director
—
—
—
115,886
1.15%
$1.11M
+1,583%
Berger Dietmar
Global Head of R&D
—
—
—
85,678
0.8536%
$822.51K
—
Kim Mina
Senior VP & General Counsel
—
—
—
66,389
0.6614%
$637.33K
+13,178%
Baynes Roy D.
Director
—
—
—
43,500
0.4334%
$417.60K
—
Renaud Ronald C JR
Director
—
—
—
31,500
0.3138%
$302.40K
—
Roncarolo Maria Grazia
Director
—
—
—
17,368
0.1730%
$166.73K
—
MALLIK AMEET
Director
—
—
—
16,928
0.1686%
$162.51K
—
Ciongoli Gregory Austin
Director
—
—
—
12,000
0.1195%
$115.20K
—

Individual transactions

22
Insider
Date
Role
Action
Shares
Price
Amount
Dupont Jakob
10 Feb 2022
EVP, Head of R&D
Sold after exercise
5,000
$16.00
$80.00K
Dupont Jakob
3 Jan 2022
EVP, Head of R&D
Sold after exercise
5,000
$16.01
$80.05K
Dupont Jakob
1 Dec 2021
EVP, Head of R&D
Sold after exercise
5,000
$17.94
$89.69K
Newell Joe
15 Nov 2021
Chief Operations Officer
Sold after exercise
7,000
$17.71
$124.00K
Dupont Jakob
2 Nov 2021
EVP, Head of R&D
Sold after exercise
5,000
$16.41
$82.05K
Newell Joe
22 Sep 2021
Chief Operations Officer
Sold after exercise
10,500
$17.00
$178.50K
Newell Joe
15 Mar 2021
Chief Operations Officer
Sold after exercise
7,000
$17.41
$121.87K
Newell Joe
15 Jan 2021
Chief Operations Officer
Sold after exercise
7,000
$18.84
$131.88K
Newell Joe
16 Dec 2020
Chief Operations Officer
Sold after exercise
3,500
$23.08
$80.78K
Newell Joe
16 Dec 2020
Chief Operations Officer
Sold after exercise
3,500
$23.13
$80.96K
Newell Joe
13 Nov 2020
Chief Operations Officer
Sold after exercise
1,300
$19.12
$24.86K
Newell Joe
13 Nov 2020
Chief Operations Officer
Sold after exercise
6,200
$18.36
$113.83K
Newell Joe
6 May 2019
Chief Tech. Operations Officer
Sold after exercise
1,500
$35.00
$52.50K
Newell Joe
1 Apr 2019
Chief Tech. Operations Officer
Sold after exercise
1,500
$39.96
$59.94K
Newell Joe
1 Mar 2019
Chief Tech. Operations Officer
Sold after exercise
200
$36.75
$7.35K
Newell Joe
1 Mar 2019
Chief Tech. Operations Officer
Sold after exercise
1,300
$36.04
$46.85K
Porter Derrell
15 Feb 2019
SVP, Head of Global Commercial
Sold after exercise
5,909
$40.00
$236.36K
Newell Joe
1 Feb 2019
Chief Tech. Operations Officer
Sold after exercise
1,000
$37.80
$37.80K
Newell Joe
2 Jan 2019
Chief Tech. Operations Officer
Sold after exercise
1,500
$35.00
$52.50K
Newell Joe
3 Dec 2018
Chief Tech. Operations Officer
Sold after exercise
127
$42.54
$5.40K
Newell Joe
3 Dec 2018
Chief Tech. Operations Officer
Sold after exercise
400
$41.97
$16.79K
Newell Joe
3 Dec 2018
Chief Tech. Operations Officer
Sold after exercise
973
$40.61
$39.51K
Showing 250 of 540 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 459
Amendments (4/A) skipped 6
Filings about a different issuer 0
Unreadable filings 0
Joint filings 8
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 60
Sales at will 461
Transactions with no price 0
Shares from compensation/vesting 9,981,638
Sales filed before the plan box existed 381
History held since 19 Sep 2016