Jim Simons’s Ionis Pharmaceuticals IONS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $22.9M | Buy |
305,549
+81,942
| +37% | +$6.47M | 0.04% | 594 |
|
|
2025
Q4 | $17.7M | Sell |
223,607
-263,107
| -54% | -$19.8M | 0.03% | 655 |
|
|
2025
Q3 | $31.8M | Buy |
486,714
+216,000
| +80% | +$10.5M | 0.04% | 521 |
|
|
2025
Q2 | $10.7M | Buy |
270,714
+117,200
| +76% | +$3.84M | 0.01% | 1023 |
|
|
2025
Q1 | $4.63M | Sell |
153,514
-52,000
| -25% | -$1.7M | 0.01% | 1481 |
|
|
2024
Q4 | $7.18M | Buy |
205,514
+15,000
| +8% | +$561K | 0.01% | 1216 |
|
|
2024
Q3 | $7.63M | Sell |
190,514
-59,000
| -24% | -$2.75M | 0.01% | 1186 |
|
|
2024
Q2 | $11.9M | Buy |
249,514
+69,800
| +39% | +$2.86M | 0.02% | 824 |
|
|
2024
Q1 | $7.79M | Buy |
179,714
+67,300
| +60% | +$3.21M | 0.01% | 1136 |
|
|
2023
Q4 | $5.69M | Sell |
112,414
-157,386
| -58% | -$7.54M | 0.01% | 1272 |
|
|
2023
Q3 | $12.2M | Sell |
269,800
-100,700
| -27% | -$4.15M | 0.02% | 800 |
|
|
2023
Q2 | $15.2M | Sell |
370,500
-265,814
| -42% | -$10.2M | 0.02% | 809 |
|
|
2023
Q1 | $22.7M | Sell |
636,314
-542,500
| -46% | -$20.4M | 0.03% | 648 |
|
|
2022
Q4 | $44.5M | Buy |
1,178,814
+311,100
| +36% | +$13.1M | 0.06% | 374 |
|
|
2022
Q3 | $38.4M | Buy |
867,714
+252,900
| +41% | +$10.7M | 0.05% | 408 |
|
|
2022
Q2 | $22.8M | Buy |
614,814
+479,900
| +356% | +$18.1M | 0.03% | 662 |
|
|
2022
Q1 | $5M | Sell |
134,914
-95,900
| -42% | -$3.14M | 0.01% | 1596 |
|
|
2021
Q4 | $7.02M | Buy |
230,814
+133,100
| +136% | +$4.19M | 0.01% | 1287 |
|
|
2021
Q3 | $3.28M | Sell |
97,714
-678,700
| -87% | -$25.6M | ﹤0.01% | 1718 |
|
|
2021
Q2 | $31M | Buy |
776,414
+189,000
| +32% | +$7.4M | 0.04% | 516 |
|
|
2021
Q1 | $26.4M | Sell |
587,414
-157,934
| -21% | -$8.81M | 0.03% | 626 |
|
|
2020
Q4 | $42.1M | Sell |
745,348
-721,819
| -49% | -$36M | 0.05% | 410 |
|
|
2020
Q3 | $69.6M | Sell |
1,467,167
-285,700
| -16% | -$15.9M | 0.07% | 294 |
|
|
2020
Q2 | $103M | Buy |
1,752,867
+64,456
| +4% | +$3.59M | 0.09% | 231 |
|
|
2020
Q1 | $79.8M | Sell |
1,688,411
-350,300
| -17% | -$19.5M | 0.08% | 266 |
|
|
2019
Q4 | $123M | Buy |
2,038,711
+225,700
| +12% | +$13.4M | 0.09% | 225 |
|
|
2019
Q3 | $109M | Buy |
1,813,011
+57,700
| +3% | +$3.76M | 0.09% | 252 |
|
|
2019
Q2 | $113M | Buy |
+1,755,311
| New | +$124M | 0.1% | 233 |
|
|
2018
Q3 | – | Sell |
-109,914
| Closed | -$4.58M | – | 3434 |
|
|
2018
Q2 | $4.58M | Sell |
109,914
-117,800
| -52% | -$5.22M | 0.01% | 1836 |
|
|
2018
Q1 | $10M | Buy |
+227,714
| New | +$11.6M | 0.01% | 1369 |
|
|
2017
Q3 | – | Sell |
-82,414
| Closed | -$4.19M | – | 3267 |
|
|
2017
Q2 | $4.19M | Sell |
82,414
-230,800
| -74% | -$10.7M | 0.01% | 1822 |
|
|
2017
Q1 | $12.6M | Sell |
313,214
-136,300
| -30% | -$6.12M | 0.02% | 1091 |
|
|
2016
Q4 | $21.5M | Buy |
449,514
+174,700
| +64% | +$6.91M | 0.03% | 737 |
|
|
2016
Q3 | $10.1M | Buy |
274,814
+91,714
| +50% | +$2.87M | 0.02% | 1145 |
|
|
2016
Q2 | $4.26M | Buy |
183,100
+123,700
| +208% | +$3.99M | 0.01% | 1702 |
|
|
2016
Q1 | $2.41M | Sell |
59,400
-75,914
| -56% | -$3.08M | ﹤0.01% | 2102 |
|
|
2015
Q4 | $8.38M | Sell |
135,314
-341,500
| -72% | -$18.4M | 0.02% | 1114 |
|
|
2015
Q3 | $19.3M | Buy |
476,814
+425,500
| +829% | +$22M | 0.05% | 514 |
|
|
2015
Q2 | $2.95M | Buy |
+51,314
| New | +$3.26M | 0.01% | 1799 |
|
|
2014
Q2 | – | Sell |
-136,914
| Closed | -$5.92M | – | 2863 |
|
|
2014
Q1 | $5.92M | Sell |
136,914
-189,200
| -58% | -$9.17M | 0.01% | 1164 |
|
|
2013
Q4 | $13M | Sell |
326,114
-2,800
| -0.9% | -$99.8K | 0.03% | 664 |
|
|
2013
Q3 | $12.3M | Buy |
328,914
+301,000
| +1,078% | +$8.99M | 0.03% | 694 |
|
|
2013
Q2 | $750K | Buy |
+27,914
| New | +$594K | ﹤0.01% | 2061 |
|
Other funds holding IONS
VPM
VCM
Jim Simons's IONS Position: Q1 2026 in Review
Jim Simons increased its Ionis Pharmaceuticals (IONS) stake by 37% in Q1 2026, buying an estimated $6.47M and bringing the position to 305,549 shares worth $22.9M. The position accounts for 0.04% of the portfolio, ranked #594.
Jim Simons first reported a position in IONS in Q2 2013 and has held it in 43 quarters since. The position peaked at $123M in Q4 2019. 494 funds tracked by Wall St. Rank hold IONS as of Q1 2026.
- Jim Simons held 305,549 shares of Ionis Pharmaceuticals worth $22.9M as of Q1 2026.
- Jim Simons bought 81,942 Ionis Pharmaceuticals shares in Q1 2026, an estimated $6.47M.
- Ionis Pharmaceuticals made up 0.04% of Jim Simons's portfolio in Q1 2026, its #594 holding.
- Jim Simons first reported a position in Ionis Pharmaceuticals in Q2 2013 and has held it in 43 quarters since.
- Jim Simons's Ionis Pharmaceuticals position peaked at $123M in Q4 2019.
- 494 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.
Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.