Cubist Systematic Strategies’s Ionis Pharmaceuticals IONS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q3 | $3.18M | Buy |
+48,654
| New | +$2.38M | 0.02% | 1271 |
|
|
2024
Q3 | – | Sell |
-35,311
| Closed | -$1.68M | – | 3230 |
|
|
2024
Q2 | $1.68M | Sell |
35,311
-242,480
| -87% | -$9.95M | 0.01% | 1443 |
|
|
2024
Q1 | $12M | Buy |
277,791
+78,314
| +39% | +$3.73M | 0.07% | 401 |
|
|
2023
Q4 | $10.1M | Buy |
+199,477
| New | +$9.55M | 0.07% | 445 |
|
|
2023
Q3 | – | Sell |
-84,961
| Closed | -$3.49M | – | 3630 |
|
|
2023
Q2 | $3.49M | Buy |
+84,961
| New | +$3.26M | 0.02% | 1068 |
|
|
2023
Q1 | – | Sell |
-128,070
| Closed | -$4.84M | – | 4145 |
|
|
2022
Q4 | $4.84M | Buy |
128,070
+57,662
| +82% | +$2.43M | 0.03% | 1041 |
|
|
2022
Q3 | $3.11M | Sell |
70,408
-78,980
| -53% | -$3.33M | 0.02% | 1556 |
|
|
2022
Q2 | $5.53M | Buy |
149,388
+53,858
| +56% | +$2.03M | 0.03% | 897 |
|
|
2022
Q1 | $3.54M | Sell |
95,530
-201,652
| -68% | -$6.6M | 0.03% | 1011 |
|
|
2021
Q4 | $9.04M | Buy |
297,182
+210,428
| +243% | +$6.62M | 0.09% | 293 |
|
|
2021
Q3 | $2.91M | Sell |
86,754
-91,388
| -51% | -$3.44M | 0.04% | 776 |
|
|
2021
Q2 | $7.11M | Buy |
+178,142
| New | +$6.98M | 0.08% | 353 |
|
|
2021
Q1 | – | Sell |
-78,852
| Closed | -$4.46M | – | 2895 |
|
|
2020
Q4 | $4.46M | Buy |
78,852
+16,670
| +27% | +$831K | 0.06% | 499 |
|
|
2020
Q3 | $2.95M | Buy |
62,182
+57,882
| +1,346% | +$3.22M | 0.04% | 674 |
|
|
2020
Q2 | $254K | Sell |
4,300
-33,607
| -89% | -$1.87M | ﹤0.01% | 1922 |
|
|
2020
Q1 | $1.79M | Buy |
37,907
+3,593
| +10% | +$200K | 0.05% | 518 |
|
|
2019
Q4 | $2.07M | Buy |
34,314
+28,502
| +490% | +$1.7M | 0.04% | 728 |
|
|
2019
Q3 | $348K | Sell |
5,812
-39,872
| -87% | -$2.6M | 0.01% | 1477 |
|
|
2019
Q2 | $2.94M | Sell |
45,684
-12,719
| -22% | -$899K | 0.05% | 506 |
|
|
2019
Q1 | $4.74M | Buy |
+58,403
| New | +$3.77M | 0.15% | 145 |
|
|
2018
Q4 | – | Sell |
-924
| Closed | -$48K | – | 2168 |
|
|
2018
Q3 | $48K | Buy |
+924
| New | +$43.4K | ﹤0.01% | 1712 |
|
|
2018
Q2 | – | Sell |
-20,015
| Closed | -$882K | – | 1907 |
|
|
2018
Q1 | $882K | Sell |
20,015
-6,002
| -23% | -$305K | 0.05% | 489 |
|
|
2017
Q4 | $1.31M | Buy |
26,017
+19,427
| +295% | +$1.07M | 0.07% | 366 |
|
|
2017
Q3 | $334K | Sell |
6,590
-6,674
| -50% | -$350K | 0.02% | 1084 |
|
|
2017
Q2 | $675K | Buy |
+13,264
| New | +$618K | 0.04% | 608 |
|
|
2017
Q1 | – | Sell |
-36,134
| Closed | -$1.73M | – | 1728 |
|
|
2016
Q4 | $1.73M | Buy |
+36,134
| New | +$1.43M | 0.14% | 187 |
|
|
2016
Q3 | – | Sell |
-37,083
| Closed | -$864K | – | 1766 |
|
|
2016
Q2 | $864K | Buy |
37,083
+25,587
| +223% | +$825K | 0.05% | 509 |
|
|
2016
Q1 | $466K | Buy |
11,496
+10,365
| +916% | +$421K | 0.03% | 789 |
|
|
2015
Q4 | $70K | Sell |
1,131
-58,374
| -98% | -$3.15M | ﹤0.01% | 1561 |
|
|
2015
Q3 | $2.4M | Sell |
59,505
-18,230
| -23% | -$944K | 0.12% | 191 |
|
|
2015
Q2 | $4.47M | Buy |
77,735
+48,637
| +167% | +$3.09M | 0.22% | 84 |
|
|
2015
Q1 | $1.85M | Buy |
+29,098
| New | +$1.97M | 0.09% | 303 |
|
|
2014
Q4 | – | Sell |
-79,594
| Closed | -$3.09M | – | 1967 |
|
|
2014
Q3 | $3.09M | Buy |
79,594
+10,799
| +16% | +$383K | 0.19% | 123 |
|
|
2014
Q2 | $2.37M | Buy |
+68,795
| New | +$2.17M | 0.14% | 186 |
|
Other funds holding IONS
BG
DTC
Cubist Systematic Strategies's IONS Position: Q3 2025 in Review
Cubist Systematic Strategies opened a new position in Ionis Pharmaceuticals (IONS) in Q3 2025: 48,654 shares worth $3.18M. The stake represents 0.02% of the portfolio and ranks #1271 among its holdings. This is a return to the name: Cubist Systematic Strategies previously reported a position in IONS as recently as Q2 2024.
Cubist Systematic Strategies first reported a position in IONS in Q2 2014 and has held it in 34 quarters since. The position peaked at $12M in Q1 2024. 435 funds tracked by Wall St. Rank hold IONS as of Q3 2025.
- Cubist Systematic Strategies held 48,654 shares of Ionis Pharmaceuticals worth $3.18M as of Q3 2025.
- Ionis Pharmaceuticals was a new Cubist Systematic Strategies position in Q3 2025.
- Ionis Pharmaceuticals made up 0.02% of Cubist Systematic Strategies's portfolio in Q3 2025, its #1271 holding.
- Cubist Systematic Strategies first reported a position in Ionis Pharmaceuticals in Q2 2014 and has held it in 34 quarters since.
- Cubist Systematic Strategies's Ionis Pharmaceuticals position peaked at $12M in Q1 2024.
- 435 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q3 2025.
Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.