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Eventide Asset Management’s Ionis Pharmaceuticals IONS Stock Holding History

Eventide Asset Management’s Portfolio IONS Stock Details IONS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$43.2M Hold
575,000
– – 0.71% 47
2025
Q4 		$45.5M Buy
+575,000
New +$43.3M 0.71% 47
2023
Q3 		– Sell
-110,000
Closed -$4.51M – 161
2023
Q2 		$4.51M Hold
110,000
– – 0.08% 129
2023
Q1 		$3.93M Hold
110,000
– – 0.07% 129
2022
Q4 		$4.15M Hold
110,000
– – 0.08% 127
2022
Q3 		$4.87M Hold
110,000
– – 0.1% 122
2022
Q2 		$4.07M Buy
+110,000
New +$4.15M 0.09% 125

Other funds holding IONS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $121B AUM 33.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return