Over the past 12 months, 5 insiders at Atara Biotherapeutics, Inc. filed 25 open-market SEC Form 4 transactions on ATRA: 2 purchases worth $5.4M and 23 sales worth $3.9M. Insiders have been net sellers over this period. The most recent filing was on May 18, 26.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| May 18, 26 | Yanina Grant-huertaChief Accounting Officer | SELL | 2.4K | $9.13 | $22K |
| May 18, 26 | Anhco NguyenPresident and CEO | SELL | 5.2K | $9.13 | $48K |
| May 7, 26 | Ecor1 Capital, Llc | BUY | 507.4K | $9.35 | $4.7M |
| May 7, 26 | Panacea Innovation Ltd | SELL | 313.4K | $10.10 | $3.2M |
| Mar 2, 26 | Yanina Grant-huertaChief Accounting Officer | SELL | 1.6K | $5.08 | $8K |
| Mar 2, 26 | Anhco NguyenPresident and CEO | SELL | 1.4K | $5.09 | $7K |
| Jan 12, 26 | James HuangDirector,TenPercentOwner | SELL | 80.6K | $6.07 | $489K |
| Nov 17, 25 | Yanina Grant-huertaChief Accounting Officer | SELL | 1.6K | $13.19 | $22K |
| Nov 17, 25 | Anhco NguyenPresident and CEO | SELL | 2.9K | $13.19 | $38K |
| Aug 18, 25 | Yanina Grant-huertaChief Accounting Officer | SELL | 1.7K | $11.61 | $19K |
| Aug 18, 25 | Anhco NguyenPresident and CEO | SELL | 1.6K | $11.62 | $19K |
| Aug 15, 25 | Panacea Innovation LtdTenPercentOwner | BUY | 55.0K | $12.19 | $670K |
| Jul 17, 25 | James HuangDirector,TenPercentOwner | BUY | 19.3K | $9.64 | $186K |
| May 16, 25 | Yanina Grant-huertaChief Accounting Officer | SELL | 2.2K | $6.76 | $15K |
| May 16, 25 | Anhco NguyenPresident and CEO | SELL | 3.3K | $6.76 | $22K |
| Mar 3, 25 | Jill HenrichEVP, Chief Regulatory Officer | SELL | 1.1K | $7.00 | $7K |
| Mar 3, 25 | Eric J HyllengrenEVP, CFO and COO | SELL | 1.2K | $7.00 | $8K |
| Mar 3, 25 | Anhco NguyenPresident and CEO | SELL | 3.3K | $7.00 | $23K |
| Nov 18, 24 | Jill HenrichEVP, Chief Regulatory Officer | SELL | 1.0K | $11.20 | $11K |
| Nov 18, 24 | Eric J HyllengrenEVP, CFO and COO | SELL | 1.4K | $11.20 | $15K |
| Nov 18, 24 | Anhco NguyenPresident and CEO | SELL | 1.7K | $11.20 | $19K |
| Aug 16, 24 | Jill HenrichEVP, Global Head RA & Quality | SELL | 831 | $6.63 | $6K |
| Aug 16, 24 | Eric J HyllengrenEVP, CFO | SELL | 1.0K | $6.63 | $7K |
| Aug 16, 24 | Amar MuruganEVP, Chief Legal Officer | SELL | 877 | $6.63 | $6K |
| Aug 16, 24 | Anhco NguyenEVP, Chief Sci. & Tech Officer | SELL | 1.5K | $6.63 | $10K |
| Aug 16, 24 | Pascal TouchonPresident and CEO | SELL | 2.8K | $6.63 | $18K |
| May 16, 24 | Jill HenrichEVP, Global Head RA & Quality | SELL | 25.8K | $0.62 | $16K |
| May 16, 24 | Eric J HyllengrenEVP, CFO | SELL | 28.6K | $0.62 | $18K |
| May 16, 24 | Amar MuruganEVP, Chief Legal Officer | SELL | 32.4K | $0.62 | $20K |
| May 16, 24 | Anhco NguyenEVP, Chief Sci. & Tech Officer | SELL | 42.9K | $0.62 | $27K |
| May 16, 24 | Pascal TouchonPresident and CEO | SELL | 81.5K | $0.62 | $51K |
| Mar 4, 24 | Jill HenrichEVP, Global Head RA & Quality | SELL | 3.9K | $0.72 | $3K |
| Mar 4, 24 | Eric J HyllengrenEVP, CFO | SELL | 5.2K | $0.72 | $4K |
| Mar 4, 24 | Amar MuruganEVP, Chief Legal Officer | SELL | 10.0K | $0.72 | $7K |
| Mar 4, 24 | Anhco NguyenEVP, Chief Sci. & Tech Officer | SELL | 10.7K | $0.72 | $8K |
| Mar 4, 24 | Pascal TouchonPresident and CEO | SELL | 24.8K | $0.72 | $18K |
| Nov 16, 23 | Jill HenrichEVP, Global Head RA & Quality | SELL | 3.3K | $0.39 | $1K |
| Nov 16, 23 | Eric J HyllengrenSVP, CFO | SELL | 12.0K | $0.39 | $5K |
| Nov 16, 23 | Manher JoshiEVP, Chief Medical Officer | SELL | 12.3K | $0.39 | $5K |
| Nov 16, 23 | Amar MuruganEVP, Chief Legal Officer | SELL | 8.3K | $0.39 | $3K |
| Nov 16, 23 | Anhco NguyenEVP, Chief Sci. & Tech Officer | SELL | 8.9K | $0.39 | $3K |
| Nov 16, 23 | Pascal TouchonPresident and CEO | SELL | 20.4K | $0.39 | $8K |
| Nov 14, 23 | Carol Giltner GallagherDirector | BUY | 91.0K | $0.31 | $28K |
| Nov 13, 23 | Carol Giltner GallagherDirector | BUY | 179.0K | $0.22 | $39K |
| Nov 10, 23 | Eric DobmeierDirector | BUY | 446.8K | $0.23 | $103K |
| Nov 10, 23 | William K HeidenDirector | BUY | 100.0K | $0.25 | $25K |
| Aug 16, 23 | Jill HenrichEVP, Global Head RA & Quality | SELL | 2.8K | $1.65 | $5K |
| Aug 16, 23 | Eric J HyllengrenSVP, CFO | SELL | 6.4K | $1.65 | $11K |
| Aug 16, 23 | Manher JoshiEVP, Chief Medical Officer | SELL | 3.8K | $1.65 | $6K |
| Aug 16, 23 | Amar MuruganEVP, Chief Legal Officer | SELL | 5.0K | $1.65 | $8K |
Over the past 12 months, insiders at Atara Biotherapeutics, Inc. filed 2 open-market purchases worth $5.4M and 23 sales worth $3.9M on ATRA, which makes them net sellers over the period. The most recent Form 4 was filed on May 18, 26.
The largest recent open-market ATRA insider purchase in our data was $4.7M by Ecor1 Capital, Llc, filed on May 7, 26.
5 different insiders at Atara Biotherapeutics, Inc. filed open-market SEC Form 4 transactions on ATRA over the last 12 months.
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