Eric Dobmeier insider trades: Atara Biotherapeutics (ATRA) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Eric reports to the SEC
and 3 more companies
Open-market buys and sales
63 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 10, 2023 | ATRA | ↑ Buy | 446,825 | $0.23 | $101K | Direct | Nov 14, 2023 (4d) |
| Apr 24, 2023 | KDNY | ↓ Sell | 25,000 | $21.61 | $540K | Direct | Apr 26, 2023 (2d) |
| Feb 10, 2023 | KDNY | ↓ Sell | 8,097 | $23.75 | $192K | Direct | Feb 15, 2023 (5d) |
| Jan 31, 2023 | KDNY | ↓ Sell | 32,688 | $24.58 | $803K | Direct | Feb 1, 2023 (1d) |
| Dec 1, 2022 | KDNY | ↓ Sell | 30,000 | $22.31 | $669K | Direct | Dec 2, 2022 (1d) |
| May 25, 2022 | KDNY | ↑ Buy | 5,000 | $13.03 | $65K | Direct | May 27, 2022 (2d) |
| Sep 20, 2021 | KDNY | ↑ Buy | 2,000 | $12.00 | $24K | Direct | Sep 22, 2021 (2d) |
| Aug 19, 2021 | KDNY | ↑ Buy | 10,000 | $11.82 | $118K | Direct | Aug 19, 2021 (0d) |
| May 14, 2021 | KDNY | ↑ Buy | 1,000 | $14.44 | $14K | Direct | May 18, 2021 (4d) |
| Jan 4, 2021 | ADPT | ↓ Sell | 10,000 | $57.34 | $573K | Direct | Jan 6, 2021 (2d) |
| Dec 9, 2020 | KDNY | ↑ Buy | 4,000 | $13.16 | $53K | Direct | Dec 10, 2020 (1d) |
| Nov 23, 2020 | KDNY | ↑ Buy | 2,000 | $13.63 | $27K | Direct | Nov 23, 2020 (0d) |
| Nov 11, 2020 | KDNY | ↑ Buy | 4,500 | $13.80 | $62K | Direct | Nov 13, 2020 (2d) |
| Oct 1, 2020 | ADPT | ↓ Sell | 10,000 | $48.53 | $485K | Direct | Oct 2, 2020 (1d) |
| Jul 6, 2020 | ADPT | ↓ Sell | 10,000 | $47.37 | $474K | Direct | Jul 8, 2020 (2d) |
| Jun 3, 2020 | ADPT | ↓ Sell | 5,000 | $39.79 | $199K | Direct | Jun 5, 2020 (2d) |
| May 19, 2020 | ADPT | ↓ Sell | 5,000 | $40.00 | $200K | Direct | May 21, 2020 (2d) |
| May 7, 2020 | ADPT | ↓ Sell | 5,000 | $35.00 | $175K | Direct | May 8, 2020 (1d) |
| Jun 27, 2019 | ATRA | ↑ Buy | 2,000 | $19.50 | $39K | Direct | Jul 1, 2019 (4d) |
| Dec 4, 2017 | SGEN | ↓ Sell | 3,729 | $58.75 | $219K | Direct | Dec 6, 2017 (2d) |
| Nov 17, 2017 | SGEN | ↓ Sell | 35,000 | $58.25 | $2.0M | Direct | Nov 17, 2017 (0d) |
| Aug 31, 2017 | SGEN | ↓ Sell | 25,000 | $52.24 | $1.3M | Direct | Sep 5, 2017 (5d) |
| Aug 28, 2017 | SGEN | ↓ Sell | 5,343 | $47.89 | $256K | Direct | Aug 30, 2017 (2d) |
| Dec 8, 2016 | SGEN | ↓ Sell | 12,500 | $65.92 | $824K | Direct | Dec 12, 2016 (4d) |
| Sep 14, 2016 | SGEN | ↓ Sell | 22,918 | $54.04 | $1.2M | Direct | Sep 15, 2016 (1d) |
| Aug 23, 2016 | SGEN | ↓ Sell | 12,589 | $48.00 | $604K | Direct | Aug 24, 2016 (1d) |
| Aug 22, 2016 | SGEN | ↓ Sell | 5,411 | $46.59 | $252K | Direct | Aug 22, 2016 (0d) |
| Mar 17, 2016 | ATRA | ↑ Buy | 3,000 | $13.86 | $42K | Direct | Mar 17, 2016 (0d) |
| Dec 16, 2015 | ATRA | ↑ Buy | 2,500 | $22.00 | $55K | Direct | Dec 17, 2015 (1d) |
| Nov 6, 2015 | SGEN | ↓ Sell | 17,452 | $42.50 | $742K | Direct | Nov 6, 2015 (0d) |
| Aug 20, 2015 | SGEN | ↓ Sell | 8,548 | $42.02 | $359K | Direct | Aug 22, 2016 (368d) |
| Aug 20, 2015 | SGEN | ↓ Sell | 8,548 | $42.02 | $359K | Direct | Aug 25, 2015 (5d) |
| May 8, 2015 | SGEN | ↓ Sell | 17,074 | $40.38 | $689K | Direct | May 8, 2015 (0d) |
| Aug 25, 2014 | SGEN | ↓ Sell | 4,818 | $43.55 | $210K | Direct | Aug 27, 2014 (2d) |
| Jan 21, 2014 | SGEN | ↓ Sell | 56,010 | $47.92 | $2.7M | Direct | Jan 23, 2014 (2d) |
| Sep 10, 2013 | SGEN | ↓ Sell | 42,000 | $46.40 | $1.9M | Direct | Sep 11, 2013 (1d) |
| Sep 5, 2013 | SGEN | ↓ Sell | 75,000 | $42.64 | $3.2M | Direct | Sep 5, 2013 (0d) |
| Aug 19, 2013 | SGEN | ↓ Sell | 3,328 | $40.91 | $136K | Direct | Aug 21, 2013 (2d) |
| Mar 11, 2013 | SGEN | ↓ Sell | 60,000 | $31.16 | $1.9M | Direct | Mar 12, 2013 (1d) |
| Mar 6, 2013 | SGEN | ↓ Sell | 100,000 | $29.68 | $3.0M | Direct | Mar 6, 2013 (0d) |
| Jan 4, 2013 | SGEN | ↓ Sell | 50,983 | $24.95 | $1.3M | Direct | Jan 4, 2013 (0d) |
| Dec 17, 2012 | SGEN | ↓ Sell | 50,000 | $23.70 | $1.2M | Direct | Dec 19, 2012 (2d) |
| Nov 13, 2012 | SGEN | ↓ Sell | 27,327 | $23.59 | $645K | Direct | Nov 15, 2012 (2d) |
| Oct 15, 2012 | SGEN | ↓ Sell | 25,000 | $25.01 | $625K | Direct | Oct 16, 2012 (1d) |
| Aug 13, 2012 | SGEN | ↓ Sell | 25,000 | $24.01 | $600K | Direct | Aug 15, 2012 (2d) |
| Jun 18, 2012 | SGEN | ↓ Sell | 25,000 | $25.36 | $634K | Direct | Jun 20, 2012 (2d) |
| Apr 25, 2012 | SGEN | ↓ Sell | 25,000 | $19.95 | $499K | Direct | Apr 26, 2012 (1d) |
| Feb 28, 2012 | SGEN | ↓ Sell | 46,000 | $18.52 | $852K | Direct | Feb 29, 2012 (1d) |
| Oct 27, 2011 | SGEN | ↓ Sell | 20,918 | $21.95 | $459K | Direct | Oct 27, 2011 (0d) |
| Oct 20, 2011 | SGEN | ↓ Sell | 20,461 | $20.58 | $421K | Direct | Oct 21, 2011 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ATRA insiders
Open-market trades in the last 12 months
About Eric Dobmeier's insider trades
Eric Dobmeier is an insider at Atara Biotherapeutics (ATRA). Since Feb 9, 2007, Eric has reported 11 open-market purchases worth $601K and 52 sales worth $38.2M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include option exercises (63 filings), grants and awards (47 filings), shares returned to the company (3 filings), gifts (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ATRA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.