Capital World Investors
IONS icon

Capital World Investors’s Ionis Pharmaceuticals IONS Stock Holding History

Capital World Investors’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 		$1.59B Buy
21,186,369
+3,225,070
+18% +$255M 0.22% 107
2025
Q4 		$1.42B Buy
17,961,299
+5,238,571
+41% +$394M 0.19% 118
2025
Q3 		$832M Buy
12,722,728
+182,540
+1% +$8.91M 0.11% 159
2025
Q2 		$495M Buy
12,540,188
+178,194
+1% +$5.83M 0.07% 197
2025
Q1 		$373M Buy
12,361,994
+896,581
+8% +$29.4M 0.06% 225
2024
Q4 		$401M Buy
11,465,413
+3,637,041
+46% +$136M 0.06% 209
2024
Q3 		$314M Buy
7,828,372
+5,576,283
+248% +$259M 0.05% 241
2024
Q2 		$107M Buy
2,252,089
+1,412,626
+168% +$57.9M 0.02% 324
2024
Q1 		$36.4M Hold
839,463
– – 0.01% 418
2023
Q4 		$42.5M Hold
839,463
– – 0.01% 398
2023
Q3 		$38.1M Hold
839,463
– – 0.01% 400
2023
Q2 		$34.4M Buy
+839,463
New +$32.3M 0.01% 398

Other funds holding IONS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 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
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $528B AUM 27.57% 1-Year Est. Return