Massachusetts Financial Services’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
$56.4M Buy
2025
Q2
$20.5M Buy
2024
Q2
Sell
2024
Q1
$242K Sell
2023
Q4
$283K Sell
2023
Q3
$262K Sell
2023
Q2
$1.09M Sell
2023
Q1
$970K Buy
2016
Q2
Sell
2016
Q1
$13.6M Buy
2015
Q4
$20.5M Sell
2015
Q3
$15.1M Sell
2015
Q2
$53.8M Sell
2015
Q1
$62.1M Sell
2014
Q4
$67.8M Buy
2014
Q3
$40.2M Buy
2014
Q2
$19.4M Buy
2014
Q1
$20M Buy