SEI Investments’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 | $11.8M | Buy |
157,222
+41,305
| +36% | +$3.26M | 0.01% | 1043 |
|
|
2025
Q4 | $9.17M | Sell |
115,917
-3,111
| -3% | -$234K | 0.01% | 1092 |
|
|
2025
Q3 | $7.79M | Buy |
119,028
+20,680
| +21% | +$1.01M | 0.01% | 1115 |
|
|
2025
Q2 | $3.89M | Buy |
98,348
+26,790
| +37% | +$877K | ﹤0.01% | 1367 |
|
|
2025
Q1 | $2.16M | Buy |
71,558
+1,467
| +2% | +$48K | ﹤0.01% | 1605 |
|
|
2024
Q4 | $2.45M | Sell |
70,091
-119,746
| -63% | -$4.48M | ﹤0.01% | 1610 |
|
|
2024
Q3 | $7.6M | Buy |
189,837
+57,526
| +43% | +$2.68M | 0.01% | 1094 |
|
|
2024
Q2 | $6.31M | Buy |
132,311
+52,424
| +66% | +$2.15M | 0.01% | 1135 |
|
|
2024
Q1 | $3.46M | Buy |
79,887
+9,714
| +14% | +$463K | 0.01% | 1377 |
|
|
2023
Q4 | $3.55M | Buy |
70,173
+5,462
| +8% | +$262K | 0.01% | 1340 |
|
|
2023
Q3 | $2.94M | Buy |
64,711
+49,401
| +323% | +$2.04M | 0.01% | 1412 |
|
|
2023
Q2 | $628K | Sell |
15,310
-30,614
| -67% | -$1.18M | ﹤0.01% | 2049 |
|
|
2023
Q1 | $1.64M | Sell |
45,924
-17
| -0% | -$638 | ﹤0.01% | 1708 |
|
|
2022
Q4 | $1.74M | Buy |
45,941
+26,812
| +140% | +$1.13M | ﹤0.01% | 1553 |
|
|
2022
Q3 | $845K | Buy |
19,129
+8,503
| +80% | +$358K | ﹤0.01% | 1866 |
|
|
2022
Q2 | $392K | Sell |
10,626
-392
| -4% | -$14.8K | ﹤0.01% | 2203 |
|
|
2022
Q1 | $407K | Sell |
11,018
-176
| -2% | -$5.76K | ﹤0.01% | 2174 |
|
|
2021
Q4 | $339K | Sell |
11,194
-2,763
| -20% | -$87K | ﹤0.01% | 2292 |
|
|
2021
Q3 | $401K | Sell |
13,957
-95
| -0.7% | -$3.58K | ﹤0.01% | 2176 |
|
|
2021
Q2 | $492K | Sell |
14,052
-13,410
| -49% | -$525K | ﹤0.01% | 2102 |
|
|
2021
Q1 | $1.38M | Buy |
27,462
+811
| +3% | +$45.2K | ﹤0.01% | 1624 |
|
|
2020
Q4 | $1.46M | Sell |
26,651
-58,480
| -69% | -$2.91M | ﹤0.01% | 1530 |
|
|
2020
Q3 | $4.01M | Sell |
85,131
-8,920
| -9% | -$495K | 0.01% | 979 |
|
|
2020
Q2 | $5.53M | Buy |
94,051
+3,568
| +4% | +$198K | 0.02% | 814 |
|
|
2020
Q1 | $4.28M | Sell |
90,483
-8,214
| -8% | -$458K | 0.02% | 828 |
|
|
2019
Q4 | $5.96M | Buy |
98,697
+26,555
| +37% | +$1.58M | 0.02% | 824 |
|
|
2019
Q3 | $4.32M | Buy |
72,142
+3,101
| +4% | +$202K | 0.01% | 994 |
|
|
2019
Q2 | $4.44M | Buy |
69,041
+1,792
| +3% | +$127K | 0.01% | 987 |
|
|
2019
Q1 | $5.46M | Buy |
67,249
+12,772
| +23% | +$824K | 0.02% | 864 |
|
|
2018
Q4 | $2.81M | Hold |
54,477
| – | – | 0.01% | 1166 |
|
|
2018
Q3 | $2.81M | Sell |
54,477
-44,728
| -45% | -$2.1M | 0.01% | 1142 |
|
|
2018
Q2 | $4.13M | Buy |
99,205
+23,572
| +31% | +$1.04M | 0.01% | 1016 |
|
|
2018
Q1 | $3.33M | Buy |
75,633
+19,238
| +34% | +$977K | 0.01% | 1007 |
|
|
2017
Q4 | $2.84M | Buy |
56,395
+546
| +1% | +$29.9K | 0.01% | 1147 |
|
|
2017
Q3 | $2.83M | Buy |
55,849
+4,492
| +9% | +$235K | 0.01% | 1105 |
|
|
2017
Q2 | $2.61M | Buy |
51,357
+11,120
| +28% | +$518K | 0.01% | 1104 |
|
|
2017
Q1 | $1.62M | Buy |
40,237
+4,030
| +11% | +$181K | 0.01% | 1231 |
|
|
2016
Q4 | $1.73M | Sell |
36,207
-91,878
| -72% | -$3.64M | 0.01% | 1192 |
|
|
2016
Q3 | $4.69M | Sell |
128,085
-6,345
| -5% | -$199K | 0.02% | 730 |
|
|
2016
Q2 | $3.13M | Buy |
134,430
+92,676
| +222% | +$2.99M | 0.02% | 822 |
|
|
2016
Q1 | $1.69M | Buy |
41,754
+39,514
| +1,764% | +$1.6M | 0.01% | 1005 |
|
|
2015
Q4 | $139K | Sell |
2,240
-719
| -24% | -$38.8K | ﹤0.01% | 1634 |
|
|
2015
Q3 | $119K | Sell |
2,959
-5,839
| -66% | -$302K | ﹤0.01% | 1738 |
|
|
2015
Q2 | $507K | Buy |
8,798
+672
| +8% | +$42.7K | ﹤0.01% | 1172 |
|
|
2015
Q1 | $519K | Sell |
8,126
-1,801
| -18% | -$122K | ﹤0.01% | 1168 |
|
|
2014
Q4 | $613K | Buy |
+9,927
| New | +$490K | 0.01% | 1085 |
|
Other funds holding IONS
VPM
VCM
SEI Investments's IONS Position: Q1 2026 in Review
SEI Investments increased its Ionis Pharmaceuticals (IONS) stake by 36% in Q1 2026, buying an estimated $3.26M and bringing the position to 157,222 shares worth $11.8M. The position accounts for 0.01% of the portfolio, ranked #1043.
SEI Investments first reported a position in IONS in Q4 2014 and has held it in 46 quarters since. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.
- SEI Investments held 157,222 shares of Ionis Pharmaceuticals worth $11.8M as of Q1 2026.
- SEI Investments bought 41,305 Ionis Pharmaceuticals shares in Q1 2026, an estimated $3.26M.
- Ionis Pharmaceuticals made up 0.01% of SEI Investments's portfolio in Q1 2026, its #1043 holding.
- SEI Investments first reported a position in Ionis Pharmaceuticals in Q4 2014 and has held it in 46 quarters since.
- 493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.
Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.