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CIK 0001604464 · Non-accelerated filer<br>Smaller reporting company

Atara Biotherapeutics, Inc.

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Ticker
ATRA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
460920988
Phone
805-623-4211
Business address
1280 RANCHO CONEJO BLVD, THOUSAND OAKS, CA, 91320
Open-market buys, last 90 days
$999,994
in 1 filing
Open-market sales, last 90 days
$40,883
in 1 filing

Net +$959,111. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Cherry Brian N +$1000K Director 1 filing
  2. Nguyen AnhCo −$41K President and CEO sold 4% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2023-08-16 Hyllengren Eric J SVP, CFO Sale −1,778 $1.65 $3K 217,956
2023-08-16 Murugan Amar EVP, Chief Legal Officer Sale −5,050 $1.65 $8K 269,013
2023-08-16 Murugan Amar EVP, Chief Legal Officer Sale −3,622 $1.65 $6K 265,391
2023-08-16 Touchon Pascal President and CEO Sale −21,432 $1.65 $35K 685,239
2023-08-16 Touchon Pascal President and CEO Sale −9,334 $1.65 $15K 675,905
2023-08-16 Nguyen AnhCo EVP, Chief Sci. & Tech Officer Sale −5,849 $1.65 $10K 295,276
2023-08-16 Nguyen AnhCo EVP, Chief Sci. & Tech Officer Sale −9,277 $1.65 $15K 285,999
2023-08-16 Joshi Manher EVP, Chief Medical Officer Sale −3,202 $1.65 $5K 187,344
2023-08-16 Joshi Manher EVP, Chief Medical Officer Sale −3,773 $1.65 $6K 183,571
2023-08-16 Henrich Jill EVP, Global Head RA & Quality Sale −2,788 $1.65 $5K 108,249
2023-08-16 Henrich Jill EVP, Global Head RA & Quality Sale −558 $1.65 $923 107,691
2023-06-27 Touchon Pascal President and CEO Sale −14,291 $1.66 $24K 706,671
2023-05-31 SEIDENBERG BETH C Director Grant or award +57,000 115,689
2023-05-31 SEIDENBERG BETH C Director Grant or award · Non-Qualified Stock Option (Right to Buy) +79,500 79,500
2023-05-31 Roncarolo Maria Grazia Director Grant or award +57,000 88,500
2023-05-31 Roncarolo Maria Grazia Director Grant or award · Non-Qualified Stock Option (Right to Buy) +79,500 79,500
2023-05-31 Gallagher Carol Giltner Director Grant or award +57,000 189,418
2023-05-31 Gallagher Carol Giltner Director Grant or award · Non-Qualified Stock Option (Right to Buy) +79,500 79,500
2023-05-31 Fust Matthew K Director Grant or award +57,000 109,000
2023-05-31 Fust Matthew K Director Grant or award · Non-Qualified Stock Option (Right to Buy) +79,500 79,500

Page 7 of 17 · 334 trades