EC
EcoR1 Capital’s Atara Biotherapeutics ATRA Stock Holding History
| Quarter | Market Value | Status | Shares |
Shares Change % | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | $4.42M | Hold |
573,183
| – | – | 0.26% | 32 |
|
|
2025
Q1 | $3.4M | Buy |
573,183
+41,049
| +8% | +$244K | 0.2% | 33 |
|
|
2024
Q4 | $7.08M | Buy |
532,134
+63,196
| +13% | +$841K | 0.27% | 40 |
|
|
2024
Q3 | $3.81M | Buy |
468,938
+62,259
| +15% | +$506K | 0.13% | 49 |
|
|
2024
Q2 | $3.46M | Sell |
406,679
-9,760,364
| -96% | -$83M | 0.11% | 48 |
|
|
2024
Q1 | $7.06M | Buy |
10,167,043
+100,000
| +1% | +$69.4K | 0.18% | 47 |
|
|
2023
Q4 | $5.16M | Buy |
+10,067,043
| New | +$5.16M | 0.13% | 38 |
|
|
2017
Q2 | – | Sell |
-434,812
| Closed | -$8.94M | – | 33 |
|
|
2017
Q1 | $8.94M | Buy |
434,812
+219,000
| +101% | +$4.5M | 2.26% | 11 |
|
|
2016
Q4 | $3.07M | Buy |
+215,812
| New | +$3.07M | 0.98% | 16 |
|
|
2015
Q4 | – | Sell |
-803,458
| Closed | -$25.3M | – | 26 |
|
|
2015
Q3 | $25.3M | Sell |
803,458
-259,731
| -24% | -$8.17M | 11.5% | 2 |
|
|
2015
Q2 | $56.1M | Hold |
1,063,189
| – | – | 18.7% | 1 |
|
|
2015
Q1 | $44.2M | Buy |
1,063,189
+678,065
| +176% | +$28.2M | 14.73% | 1 |
|
|
2014
Q4 | $10.1M | Buy |
+385,124
| New | +$10.1M | 5.13% | 8 |
|