CIK 0001604464 · Non-accelerated filer<br>Smaller reporting company
Atara Biotherapeutics, Inc.
Sign in to watch- 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.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2025-08-18 | Grant-Huerta Yanina Chief Accounting Officer | Sale | −55 | $11.61 | $638 | 37,012 |
| 2025-08-18 | Grant-Huerta Yanina Chief Accounting Officer | Sale | −86 | $11.61 | $999 | 36,926 |
| 2025-08-18 | Grant-Huerta Yanina Chief Accounting Officer | Sale | −1,668 | $11.61 | $19K | 35,258 |
| 2025-08-15 | Panacea Innovation Ltd 10% owner | Purchase | +55,000 | $12.19 | $670K | 1,405,000 |
| 2025-07-17 | Panacea Innovation Ltd 10% owner | Purchase | +19,335 | $9.64 | $186K | 1,350,000 |
| 2025-06-10 | Gallagher Carol Giltner Director | Grant or award | +7,828 | 33,012 | ||
| 2025-06-10 | Fust Matthew K Director | Grant or award | +7,828 | 18,188 | ||
| 2025-06-10 | Touchon Pascal Director | Grant or award | +7,828 | 77,955 | ||
| 2025-06-10 | Roncarolo Maria Grazia Director | Grant or award | +7,828 | 17,368 | ||
| 2025-06-10 | MALLIK AMEET Director | Grant or award | +7,828 | 16,928 | ||
| 2025-06-10 | HEIDEN WILLIAM K Director | Grant or award | +7,828 | 22,188 | ||
| 2025-05-16 | Grant-Huerta Yanina Chief Accounting Officer | Sale | −2,218 | $6.76 | $15K | 37,067 |
| 2025-05-16 | Nguyen AnhCo President and CEO | Sale | −3,276 | $6.76 | $22K | 70,847 |
| 2025-05-16 | Adiumentum Capital Fund I LP Director | Grant or award | +75,572 | $6.61 | $500K | 1,209,395 |
| 2025-05-16 | Adiumentum Capital Fund I LP Director | Grant or award · Warrants (right to buy) | +227,000 | $6.61 | $1.5M | 377,193 |
| 2025-03-31 | Hyllengren Eric J Former EVP, CFO & COO | Returned to the company · Employee Stock Option (Right to Buy) | −1,900 | 0 | ||
| 2025-03-31 | Hyllengren Eric J Former EVP, CFO & COO | Returned to the company · Employee Stock Option (Right to Buy) | −460 | 0 | ||
| 2025-03-31 | Hyllengren Eric J Former EVP, CFO & COO | Returned to the company · Employee Stock Option (Right to Buy) | −496 | 0 | ||
| 2025-03-31 | Hyllengren Eric J Former EVP, CFO & COO | Returned to the company · Employee Stock Option (Right to Buy) | −154 | 0 | ||
| 2025-03-31 | Hyllengren Eric J Former EVP, CFO & COO | Returned to the company · Employee Stock Option (Right to Buy) | −381 | 0 |
Page 3 of 17 · 334 trades