Baker Bros. Advisors’s Ionis Pharmaceuticals IONS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Shares Change % | Capital Flow | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | – | Sell |
-357,915
| Closed | -$10.8M | – | 93 |
|
|
2025
Q1 | $10.8M | Hold |
357,915
| – | – | 0.12% | 45 |
|
|
2024
Q4 | $12.5M | Buy |
357,915
+134,445
| +60% | +$4.7M | 0.13% | 49 |
|
|
2024
Q3 | $8.95M | Buy |
+223,470
| New | +$8.95M | 0.09% | 55 |
|
|
2017
Q1 | – | Sell |
-57,140
| Closed | -$2.73M | – | 125 |
|
|
2016
Q4 | $2.73M | Hold |
57,140
| – | – | 0.03% | 81 |
|
|
2016
Q3 | $2.09M | Hold |
57,140
| – | – | 0.02% | 95 |
|
|
2016
Q2 | $1.33M | Hold |
57,140
| – | – | 0.01% | 110 |
|
|
2016
Q1 | $2.31M | Hold |
57,140
| – | – | 0.02% | 96 |
|
|
2015
Q4 | $3.54M | Hold |
57,140
| – | – | 0.03% | 88 |
|
|
2015
Q3 | $2.31M | Hold |
57,140
| – | – | 0.02% | 100 |
|
|
2015
Q2 | $3.29M | Hold |
57,140
| – | – | 0.03% | 90 |
|
|
2015
Q1 | $3.64M | Sell |
57,140
-39,163
| -41% | -$2.49M | 0.03% | 86 |
|
|
2014
Q4 | $5.95M | Hold |
96,303
| – | – | 0.06% | 68 |
|
|
2014
Q3 | $3.74M | Hold |
96,303
| – | – | 0.05% | 71 |
|
|
2014
Q2 | $3.32M | Hold |
96,303
| – | – | 0.04% | 79 |
|
|
2014
Q1 | $4.16M | Sell |
96,303
-150,733
| -61% | -$6.51M | 0.05% | 80 |
|
|
2013
Q4 | $9.84M | Hold |
247,036
| – | – | 0.14% | 45 |
|
|
2013
Q3 | $9.27M | Hold |
247,036
| – | – | 0.13% | 46 |
|
|
2013
Q2 | $6.64M | Buy |
+247,036
| New | +$6.64M | 0.13% | 44 |
|