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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
2020-11-13 Newell Joe Chief Operations Officer Sale −6,200 $18.36 $114K 119,503
2020-11-13 Newell Joe Chief Operations Officer Sale −1,300 $19.12 $25K 118,203
2020-11-13 Newell Joe Chief Operations Officer Option exercise · Employee Stock Option (Right to Buy) −2,833 50,167
2020-11-13 Newell Joe Chief Operations Officer Option exercise · Employee Stock Option (Right to Buy) −667 16,333
2020-08-18 Touchon Pascal President and CEO Sale −4,807 $12.09 $58K 260,037
2020-08-18 Koppikar Utpal Chief Financial Officer Sale −1,496 $12.09 $18K 133,530
2020-08-18 Newell Joe Chief Operations Officer Sale −1,678 $12.09 $20K 122,203
2020-06-25 Touchon Pascal President and CEO Sale −12,135 $12.92 $157K 264,844
2020-06-16 SEIDENBERG BETH C Director Grant or award +8,000 27,189
2020-06-16 SEIDENBERG BETH C Director Grant or award · Non-Qualified Stock Option (Right to Buy) +24,500 24,500
2020-06-16 HEIDEN WILLIAM K Director Grant or award +8,000 20,500
2020-06-16 HEIDEN WILLIAM K Director Grant or award · Non-Qualified Stock Option (Right to Buy) +24,500 24,500
2020-06-16 Gallagher Carol Giltner Director Grant or award +8,000 100,818
2020-06-16 Gallagher Carol Giltner Director Grant or award · Non-Qualified Stock Option (Right to Buy) +24,500 24,500

Page 17 of 17 · 334 trades