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Atara Biotherapeutics, Inc.
ATRANasdaqCIK: 0001604464
Atara Biotherapeutics, Inc. (ATRA) shows 21 recent insider filings from 10 insiders, with 1 buying and 3 selling. With $5.6M in purchases and $3.9M in sales, the recent tape is a roughly balanced mix of buying and selling (a net purchase of $1.7M). EcoR1 Capital, LLC (10% Owner) is the most active by dollar volume, and the single largest transaction was $4.7M by EcoR1 Capital, LLC. All figures are drawn from official SEC Form 3, 4, and 5 disclosures and update as new filings arrive.
Total Volume
$9.5M
Purchases
$5.6M
Sales
$3.9M
Unique Insiders
10
Recent Insider Trades
21 loaded
| Jul 24 | ATRA Atara Biotherapeutics, Inc. | Redmile Group, LLC | Director | Exercise | $0 |
| Jul 6 | ATRA Atara Biotherapeutics, Inc. | Sarney Kevin G | Insider | Other | $0 |
| Jun 15 | ATRA Atara Biotherapeutics, Inc. | Cherry Brian N | Insider | Other | $0 |
| Jun 15 | ATRA Atara Biotherapeutics, Inc. | Cherry Brian N | Insider | Grant | $0 |
| Jun 11 | ATRA Atara Biotherapeutics, Inc. | HEIDEN WILLIAM K | Insider | Grant | $0 |
| Jun 11 | ATRA Atara Biotherapeutics, Inc. | Fust Matthew K | Insider | Grant | $0 |
| Jun 11 | ATRA Atara Biotherapeutics, Inc. | Ciongoli Gregory Austin | Insider | Grant | $0 |
| May 20 | ATRA Atara Biotherapeutics, Inc. | Grant-Huerta Yanina | Insider | Sell | $22.0K |
| May 20 | ATRA Atara Biotherapeutics, Inc. | Nguyen AnhCo | Insider | Sell | $47.8K |
| May 11 | ATRA Atara Biotherapeutics, Inc. | EcoR1 Capital, LLC | 10% Owner | Other | $0 |
| May 11 | ATRA Atara Biotherapeutics, Inc. | EcoR1 Capital, LLC | 10% Owner | Buy | $4.7M |
| May 11 | ATRA Atara Biotherapeutics, Inc. | Panacea Innovation Ltd | Insider | Sell | $3.2M |
| Mar 4 | ATRA Atara Biotherapeutics, Inc. | Nguyen AnhCo | Insider | Sell | $15.2K |
| Mar 4 | ATRA Atara Biotherapeutics, Inc. | Grant-Huerta Yanina | Insider | Sell | $10.7K |
| Jan 14 | ATRA Atara Biotherapeutics, Inc. | Panacea Innovation Ltd | Insider | Sell | $489.0K |
| Nov 19 | ATRA Atara Biotherapeutics, Inc. | Grant-Huerta Yanina | Insider | Sell | $23.8K |
| Nov 19 | ATRA Atara Biotherapeutics, Inc. | Nguyen AnhCo | Insider | Sell | $38.4K |
| Aug 20 | ATRA Atara Biotherapeutics, Inc. | Nguyen AnhCo | Insider | Sell | $34.4K |
| Aug 20 | ATRA Atara Biotherapeutics, Inc. | Grant-Huerta Yanina | Insider | Sell | $21.0K |
| Aug 19 | ATRA Atara Biotherapeutics, Inc. | Panacea Innovation Ltd | Insider | Buy | $670.4K |
| Jul 21 | ATRA Atara Biotherapeutics, Inc. | Panacea Innovation Ltd | Insider | Buy | $186.4K |
21 filings