Is Atara Biotherapeutics, Inc. (ATRA) a Buy, Sell, or Hold?
NASDAQ : ATRA
Atara Biotherapeutics, Inc. — Insider Trades
$8.94 USD
$0.33 (3.83%)
- Volume
- 29.23K
- Average Volume
- 1.43M
- Market Capitalization
- $80.55M
- P/E Ratio
- -13.55
- Dividend Yield
- 0.00%
- Price Target
- $13.00
- Year High
- $19.15
- Year Low
- $3.92
- Day High
- —
- Day Low
- —
- Payout Ratio
- $0.00
- Current Ratio
- $2.16
Insider Activity Summary (Last 12 Months)
Insiders Buying
10
Insiders Selling
23
Amount of Insider Selling
$774.83K
ATRA Insider Buying/Selling by Quarter
ATRA Insider Trading History
| Insider Name | Title | Date | Transaction | Cost | Filing Date |
|---|---|---|---|---|---|
| Redmile Group, LLC | director | 2026-07-22 | M-Exempt | 0 | 2026-07-24 |
| Redmile Group, LLC | director | 2026-07-22 | F-InKind | 0 | 2026-07-24 |
| Redmile Group, LLC | director | 2026-07-22 | M-Exempt | 0.0025 | 2026-07-24 |
| Sarney Kevin G | 2026-06-26 | 0 | 2026-07-06 | ||
| Cherry Brian N | director | 2026-06-11 | A-Award | 0 | 2026-06-15 |
| Cherry Brian N | director | 2026-06-11 | 0 | 2026-06-15 | |
| HEIDEN WILLIAM K | director | 2026-06-09 | A-Award | 0 | 2026-06-11 |
| Fust Matthew K | director | 2026-06-09 | A-Award | 0 | 2026-06-11 |
| Ciongoli Gregory Austin | director, 10 percent owner, other: See Remarks | 2026-06-09 | A-Award | 0 | 2026-06-11 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-05-18 | S-Sale | 9.1289 | 2026-05-20 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-05-18 | S-Sale | 9.1286 | 2026-05-20 |
| Panacea Innovation Ltd | 10 percent owner | 2026-05-07 | S-Sale | 10.0975 | 2026-05-11 |
| EcoR1 Capital, LLC | 10 percent owner | 2026-05-07 | P-Purchase | 9.35 | 2026-05-11 |
| EcoR1 Capital, LLC | 10 percent owner | 2026-05-07 | 0 | 2026-05-11 | |
| Panacea Innovation Ltd | 10 percent owner | 2026-03-17 | M-Exempt | 0.0001 | 2026-03-19 |
| Panacea Innovation Ltd | 10 percent owner | 2026-03-17 | F-InKind | 5.23 | 2026-03-19 |
| Panacea Innovation Ltd | 10 percent owner | 2026-03-17 | M-Exempt | 0.0001 | 2026-03-19 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-03-09 | A-Award | 0 | 2026-03-11 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-03-09 | A-Award | 0 | 2026-03-11 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-03-02 | S-Sale | 5.077 | 2026-03-04 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-03-02 | S-Sale | 5.081 | 2026-03-04 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-03-02 | S-Sale | 5.082 | 2026-03-04 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2026-03-02 | S-Sale | 5.083 | 2026-03-04 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-03-02 | S-Sale | 5.079 | 2026-03-04 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-03-02 | S-Sale | 5.08 | 2026-03-04 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-03-02 | S-Sale | 5.086 | 2026-03-04 |
| Nguyen AnhCo | director, officer: President and CEO | 2026-03-02 | S-Sale | 5.087 | 2026-03-04 |
| Panacea Innovation Ltd | 10 percent owner | 2026-01-12 | S-Sale | 6.0707 | 2026-01-14 |
| Panacea Innovation Ltd | 10 percent owner | 2025-11-28 | M-Exempt | 0.0001 | 2025-12-01 |
| Panacea Innovation Ltd | 10 percent owner | 2025-11-28 | M-Exempt | 0.0001 | 2025-12-01 |
| Panacea Innovation Ltd | 10 percent owner | 2025-11-28 | F-InKind | 14.03 | 2025-12-01 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-11-17 | S-Sale | 13.186 | 2025-11-19 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-11-17 | S-Sale | 13.188 | 2025-11-19 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-11-17 | S-Sale | 13.186 | 2025-11-19 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-11-17 | S-Sale | 13.188 | 2025-11-19 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-11-17 | S-Sale | 13.191 | 2025-11-19 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-08-18 | S-Sale | 11.613 | 2025-08-20 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-08-18 | S-Sale | 11.615 | 2025-08-20 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-08-18 | S-Sale | 11.617 | 2025-08-20 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-08-18 | S-Sale | 11.609 | 2025-08-20 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-08-18 | S-Sale | 11.613 | 2025-08-20 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-08-18 | S-Sale | 11.614 | 2025-08-20 |
| Panacea Innovation Ltd | 10 percent owner | 2025-08-15 | P-Purchase | 12.1895 | 2025-08-19 |
| Panacea Innovation Ltd | 10 percent owner | 2025-07-17 | P-Purchase | 9.6391 | 2025-07-21 |
| Gallagher Carol Giltner | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| Fust Matthew K | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| Touchon Pascal | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| Roncarolo Maria Grazia | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| MALLIK AMEET | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| HEIDEN WILLIAM K | director | 2025-06-10 | A-Award | 0 | 2025-06-12 |
| Subramanian Nachiappan | director: | 2025-05-16 | 0 | 2025-05-23 | |
| Redmile Group, LLC | director | 2025-05-16 | 0 | 2025-05-23 | |
| Redmile Group, LLC | director | 2025-05-16 | 809.858 | 2025-05-23 | |
| Redmile Group, LLC | director | 2025-05-16 | 9.315 | 2025-05-23 | |
| Redmile Group, LLC | director | 2025-05-16 | 0 | 2025-05-23 | |
| Panacea Innovation Ltd | 10 percent owner | 2025-05-16 | 0 | 2025-05-21 | |
| Panacea Innovation Ltd | 10 percent owner | 2025-05-16 | 0.0001 | 2025-05-21 | |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-05-16 | S-Sale | 6.763 | 2025-05-20 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-05-16 | S-Sale | 6.763 | 2025-05-20 |
| Adiumentum Capital Fund I LP | director, 10 percent owner, other: See remarks | 2025-05-16 | A-Award | 6.61 | 2025-05-16 |
| Adiumentum Capital Fund I LP | director, 10 percent owner, other: See remarks | 2025-05-16 | A-Award | 0.0001 | 2025-05-16 |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-03-31 | 0 | 2025-04-10 | |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2024-04-06 | 198 | 2025-04-10 | |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2025-03-31 | 97.75 | 2025-04-10 | |
| Grant-Huerta Yanina | officer: Chief Accounting Officer | 2024-07-31 | 11 | 2025-04-10 | |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 97.75 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 255.25 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 255.25 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 961.75 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 97.75 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 303.75 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 996.25 | 2025-04-02 |
| Hyllengren Eric J | other: Former EVP, CFO & COO | 2025-03-31 | D-Return | 427.63 | 2025-04-02 |
| Nguyen AnhCo | director, officer: President and CEO | 2025-03-03 | S-Sale | 6.997 | 2025-03-05 |
| Hyllengren Eric J | officer: EVP, CFO and COO | 2025-03-03 | S-Sale | 6.997 | 2025-03-05 |
| Henrich Jill | officer: EVP, Chief Regulatory Officer | 2025-03-03 | S-Sale | 6.997 | 2025-03-05 |
| Hyllengren Eric J | officer: EVP, CFO and COO | 2025-01-27 | A-Award | 0 | 2025-01-29 |
| Henrich Jill | officer: EVP, Chief Regulatory Officer | 2024-11-18 | S-Sale | 11.198 | 2024-11-20 |
| Hyllengren Eric J | officer: EVP, CFO and COO | 2024-11-18 | S-Sale | 11.198 | 2024-11-20 |
| Nguyen AnhCo | director, officer: President and CEO | 2024-11-18 | S-Sale | 11.198 | 2024-11-20 |
| Nguyen AnhCo | director, officer: President and CEO | 2024-09-09 | A-Award | 0 | 2024-09-11 |
| Adiumentum Capital Fund I LP | director, 10 percent owner: | 2024-09-03 | 0 | 2024-09-05 | |
| Adiumentum Capital Fund I LP | director, 10 percent owner: | 2024-09-03 | 0.0001 | 2024-09-05 | |
| Touchon Pascal | director, officer: President and CEO | 2024-08-16 | S-Sale | 6.629 | 2024-08-20 |
| Touchon Pascal | director, officer: President and CEO | 2024-08-16 | S-Sale | 6.63 | 2024-08-20 |
| Nguyen AnhCo | officer: EVP, Chief Sci. & Tech Officer | 2024-08-16 | S-Sale | 6.629 | 2024-08-20 |
| Nguyen AnhCo | officer: EVP, Chief Sci. & Tech Officer | 2024-08-16 | S-Sale | 6.63 | 2024-08-20 |
| Nguyen AnhCo | officer: EVP, Chief Sci. & Tech Officer | 2024-08-16 | S-Sale | 6.631 | 2024-08-20 |
| Murugan Amar | officer: EVP, Chief Legal Officer | 2024-08-16 | S-Sale | 6.629 | 2024-08-20 |
| Murugan Amar | officer: EVP, Chief Legal Officer | 2024-08-16 | S-Sale | 6.63 | 2024-08-20 |
| Murugan Amar | officer: EVP, Chief Legal Officer | 2024-08-16 | S-Sale | 6.631 | 2024-08-20 |
| Hyllengren Eric J | officer: EVP, CFO | 2024-08-16 | S-Sale | 6.629 | 2024-08-20 |
| Hyllengren Eric J | officer: EVP, CFO | 2024-08-16 | S-Sale | 6.631 | 2024-08-20 |
| Henrich Jill | officer: EVP, Global Head RA & Quality | 2024-08-16 | S-Sale | 6.629 | 2024-08-20 |
| Henrich Jill | officer: EVP, Global Head RA & Quality | 2024-08-16 | S-Sale | 6.631 | 2024-08-20 |
| Touchon Pascal | director, officer: President and CEO | 2024-08-12 | D-Return | 427.63 | 2024-08-14 |
| Touchon Pascal | director, officer: President and CEO | 2024-08-12 | D-Return | 303.75 | 2024-08-14 |
| Touchon Pascal | director, officer: President and CEO | 2024-08-12 | D-Return | 510.75 | 2024-08-14 |
| Touchon Pascal | director, officer: President and CEO | 2024-05-16 | S-Sale | 0.617 | 2024-05-20 |
| Nguyen AnhCo | officer: EVP, Chief Sci. & Tech Officer | 2024-05-16 | S-Sale | 0.617 | 2024-05-20 |