State of Wisconsin Investment Board’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
$3.82M Sell
96,694
-11,622
-11% -$459K 0.01% 1026
2025
Q1
$3.27M Buy
108,316
+7,085
+7% +$214K 0.01% 1070
2024
Q4
$3.54M Buy
101,231
+15,065
+17% +$527K 0.01% 1079
2024
Q3
$3.45M Sell
86,166
-1,534
-2% -$61.5K 0.01% 1098
2024
Q2
$4.18M Sell
87,700
-4,115
-4% -$196K 0.01% 998
2024
Q1
$3.98M Sell
91,815
-11,750
-11% -$509K 0.01% 1027
2023
Q4
$5.24M Sell
103,565
-2,200
-2% -$111K 0.01% 955
2023
Q3
$4.8M Sell
105,765
-3,545
-3% -$161K 0.02% 941
2023
Q2
$4.48M Sell
109,310
-5,941
-5% -$244K 0.01% 1008
2023
Q1
$4.12M Sell
115,251
-12,976
-10% -$464K 0.01% 1063
2022
Q4
$4.84M Sell
128,227
-1,627
-1% -$61.5K 0.02% 961
2022
Q3
$5.74M Sell
129,854
-7,379
-5% -$326K 0.02% 861
2022
Q2
$5.08M Buy
137,233
+22,782
+20% +$843K 0.01% 983
2022
Q1
$4.24M Buy
114,451
+97,397
+571% +$3.61M 0.01% 1222
2021
Q4
$519K Sell
17,054
-525
-3% -$16K ﹤0.01% 1668
2021
Q3
$590K Buy
17,579
+830
+5% +$27.9K ﹤0.01% 1636
2021
Q2
$668K Sell
16,749
-55,456
-77% -$2.21M ﹤0.01% 1592
2021
Q1
$3.25M Sell
72,205
-27,880
-28% -$1.25M 0.01% 1140
2020
Q4
$5.66M Buy
100,085
+24,349
+32% +$1.38M 0.01% 936
2020
Q3
$3.59M Sell
75,736
-200
-0.3% -$9.49K 0.01% 1025
2020
Q2
$4.48M Buy
75,936
+5,760
+8% +$340K 0.01% 919
2020
Q1
$3.32M Sell
70,176
-17,980
-20% -$850K 0.01% 923
2019
Q4
$5.33M Sell
88,156
-1,547
-2% -$93.5K 0.01% 912
2019
Q3
$5.37M Sell
89,703
-2,999
-3% -$180K 0.01% 806
2019
Q2
$5.96M Buy
92,702
+69,321
+296% +$4.46M 0.02% 777
2019
Q1
$1.9M Sell
23,381
-580
-2% -$47.1K 0.01% 1021
2018
Q4
$1.3M Hold
23,961
﹤0.01% 1062
2018
Q3
$1.24M Sell
23,961
-500
-2% -$25.8K ﹤0.01% 1140
2018
Q2
$1.02M Sell
24,461
-310
-1% -$12.9K ﹤0.01% 1161
2018
Q1
$1.09M Sell
24,771
-573
-2% -$25.3K ﹤0.01% 1105
2017
Q4
$1.28M Buy
25,344
+209
+0.8% +$10.5K ﹤0.01% 1048
2017
Q3
$1.27M Buy
25,135
+519
+2% +$26.3K ﹤0.01% 1032
2017
Q2
$1.25M Buy
24,616
+550
+2% +$28K ﹤0.01% 1017
2017
Q1
$967K Sell
24,066
-41,851
-63% -$1.68M ﹤0.01% 1038
2016
Q4
$3.15M Sell
65,917
-11,113
-14% -$532K 0.01% 870
2016
Q3
$2.82M Sell
77,030
-3,000
-4% -$110K 0.01% 983
2016
Q2
$1.86M Buy
80,030
+70,030
+700% +$1.63M 0.01% 1112
2016
Q1
$405K Buy
+10,000
New +$405K ﹤0.01% 1281
2015
Q4
Sell
-89,310
Closed -$3.61M 1318
2015
Q3
$3.61M Sell
89,310
-2,590
-3% -$105K 0.01% 897
2015
Q2
$5.29M Buy
+91,900
New +$5.29M 0.02% 816
2014
Q3
Sell
-130,000
Closed -$4.48M 1339
2014
Q2
$4.48M Buy
+130,000
New +$4.48M 0.02% 867