Group One Trading’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 | $2.25M | Sell |
29,900
-33,300
| -53% | -$2.63M | ﹤0.01% | 1966 |
|
|
2025
Q4 | $5M | Buy |
63,200
+4,400
| +7% | +$331K | 0.01% | 1489 |
|
|
2025
Q3 | $3.85M | Buy |
58,800
+15,100
| +35% | +$737K | 0.01% | 1725 |
|
|
2025
Q2 | $1.73M | Buy |
43,700
+12,500
| +40% | +$409K | ﹤0.01% | 2274 |
|
|
2025
Q1 | $941K | Buy |
31,200
+1,200
| +4% | +$39.3K | ﹤0.01% | 2514 |
|
|
2024
Q4 | $1.05M | Sell |
30,000
-31,400
| -51% | -$1.17M | ﹤0.01% | 2537 |
|
|
2024
Q3 | $2.46M | Buy |
61,400
+31,300
| +104% | +$1.46M | 0.01% | 1561 |
|
|
2024
Q2 | $1.43M | Buy |
30,100
+4,700
| +19% | +$193K | 0.01% | 1714 |
|
|
2024
Q1 | $1.1M | Buy |
25,400
+23,300
| +1,110% | +$1.11M | ﹤0.01% | 2006 |
|
|
2023
Q4 | $106K | Sell |
2,100
-1,300
| -38% | -$62.3K | ﹤0.01% | 4419 |
|
|
2023
Q3 | $154K | Sell |
3,400
-7,800
| -70% | -$322K | ﹤0.01% | 4044 |
|
|
2023
Q2 | $460K | Sell |
11,200
-2,100
| -16% | -$80.7K | ﹤0.01% | 3113 |
|
|
2023
Q1 | $475K | Buy |
13,300
+5,600
| +73% | +$210K | ﹤0.01% | 2818 |
|
|
2022
Q4 | $291K | Sell |
7,700
-11,500
| -60% | -$484K | ﹤0.01% | 3523 |
|
|
2022
Q3 | $849K | Sell |
19,200
-7,400
| -28% | -$312K | ﹤0.01% | 2739 |
|
|
2022
Q2 | $985K | Buy |
26,600
+23,600
| +787% | +$890K | ﹤0.01% | 2766 |
|
|
2022
Q1 | $111K | Sell |
3,000
-36,800
| -92% | -$1.2M | ﹤0.01% | 5394 |
|
|
2021
Q4 | $1.21M | Sell |
39,800
-15,800
| -28% | -$497K | ﹤0.01% | 3152 |
|
|
2021
Q3 | $1.86M | Buy |
55,600
+18,900
| +51% | +$712K | ﹤0.01% | 2726 |
|
|
2021
Q2 | $1.46M | Sell |
36,700
-20,300
| -36% | -$795K | ﹤0.01% | 2968 |
|
|
2021
Q1 | $2.56M | Sell |
57,000
-61,600
| -52% | -$3.44M | ﹤0.01% | 2188 |
|
|
2020
Q4 | $6.71M | Buy |
118,600
+71,900
| +154% | +$3.58M | 0.01% | 1079 |
|
|
2020
Q3 | $2.22M | Buy |
46,700
+1,300
| +3% | +$72.2K | 0.01% | 1514 |
|
|
2020
Q2 | $2.68M | Sell |
45,400
-2,900
| -6% | -$161K | 0.01% | 1257 |
|
|
2020
Q1 | $2.28M | Sell |
48,300
-80,300
| -62% | -$4.48M | 0.02% | 952 |
|
|
2019
Q4 | $7.77M | Sell |
128,600
-21,400
| -14% | -$1.28M | 0.05% | 457 |
|
|
2019
Q3 | $8.99M | Buy |
150,000
+79,500
| +113% | +$5.18M | 0.07% | 315 |
|
|
2019
Q2 | $4.53M | Buy |
70,500
+34,000
| +93% | +$2.4M | 0.04% | 580 |
|
|
2019
Q1 | $2.96M | Sell |
36,500
-81,000
| -69% | -$5.23M | 0.03% | 691 |
|
|
2018
Q4 | $6.35M | Sell |
117,500
-12,700
| -10% | -$648K | 0.06% | 410 |
|
|
2018
Q3 | $6.72M | Buy |
130,200
+54,900
| +73% | +$2.58M | 0.05% | 436 |
|
|
2018
Q2 | $3.14M | Sell |
75,300
-22,900
| -23% | -$1.02M | 0.03% | 806 |
|
|
2018
Q1 | $4.33M | Sell |
98,200
-3,300
| -3% | -$168K | 0.04% | 543 |
|
|
2017
Q4 | $5.11M | Sell |
101,500
-8,400
| -8% | -$461K | 0.04% | 631 |
|
|
2017
Q3 | $5.57M | Buy |
109,900
+21,300
| +24% | +$1.12M | 0.05% | 465 |
|
|
2017
Q2 | $4.51M | Sell |
88,600
-4,800
| -5% | -$224K | 0.05% | 499 |
|
|
2017
Q1 | $3.75M | Sell |
93,400
-65,800
| -41% | -$2.96M | 0.04% | 526 |
|
|
2016
Q4 | $7.62M | Sell |
159,200
-37,800
| -19% | -$1.5M | 0.07% | 294 |
|
|
2016
Q3 | $7.22M | Buy |
197,000
+144,900
| +278% | +$4.53M | 0.08% | 281 |
|
|
2016
Q2 | $1.21M | Buy |
52,100
+1,500
| +3% | +$48.4K | 0.01% | 1135 |
|
|
2016
Q1 | $2.05M | Sell |
50,600
-80,700
| -61% | -$3.28M | 0.03% | 756 |
|
|
2015
Q4 | $8.13M | Sell |
131,300
-15,100
| -10% | -$815K | 0.1% | 208 |
|
|
2015
Q3 | $5.92M | Sell |
146,400
-41,000
| -22% | -$2.12M | 0.08% | 292 |
|
|
2015
Q2 | $10.8M | Sell |
187,400
-71,600
| -28% | -$4.55M | 0.15% | 127 |
|
|
2015
Q1 | $16.5M | Sell |
259,000
-26,300
| -9% | -$1.78M | 0.26% | 56 |
|
|
2014
Q4 | $17.6M | Buy |
285,300
+106,700
| +60% | +$5.27M | 0.27% | 58 |
|
|
2014
Q3 | $6.93M | Sell |
178,600
-13,300
| -7% | -$471K | 0.11% | 198 |
|
|
2014
Q2 | $6.61M | Buy |
191,900
+58,500
| +44% | +$1.84M | 0.1% | 207 |
|
|
2014
Q1 | $5.76M | Buy |
133,400
+9,200
| +7% | +$446K | 0.1% | 190 |
|
|
2013
Q4 | $4.95M | Buy |
124,200
+100
| +0.1% | +$3.56K | 0.07% | 260 |
|
|
2013
Q3 | $4.66M | Buy |
124,100
+40,300
| +48% | +$1.2M | 0.09% | 229 |
|
|
2013
Q2 | $2.25M | Buy |
+83,800
| New | +$1.78M | 0.06% | 369 |
|
Other funds holding IONS
VPM
VCM
Group One Trading's IONS Position: Q1 2026 in Review
Group One Trading reduced its Ionis Pharmaceuticals (IONS) stake by 50% in Q1 2026, selling an estimated $149K and leaving 1,892 shares worth $142K. The position accounts for ﹤0.01% of the portfolio, ranked #4407.
Group One Trading first reported a position in IONS in Q2 2013 and has held it in 36 quarters since. The position peaked at $9.55M in Q2 2015. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.
- Group One Trading held 1,892 shares of Ionis Pharmaceuticals worth $142K as of Q1 2026.
- Group One Trading sold 1,886 Ionis Pharmaceuticals shares in Q1 2026, an estimated $149K.
- Ionis Pharmaceuticals made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #4407 holding.
- Group One Trading first reported a position in Ionis Pharmaceuticals in Q2 2013 and has held it in 36 quarters since.
- Group One Trading's Ionis Pharmaceuticals position peaked at $9.55M in Q2 2015.
- 493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.
Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.