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Ikarian Capital’s Ionis Pharmaceuticals IONS Stock Holding History

Ikarian Capital’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
Q2 		$31.7M Buy
400,000
+287,900
+257% +$21.7M 3.42% 6
2026
Q1 		$8.42M Buy
112,100
+17,500
+18% +$1.38M 0.68% 40
2025
Q4 		$7.48M Buy
94,600
+81,300
+611% +$6.12M 0.58% 50
2025
Q3 		$870K Buy
+13,300
New +$649K 0.09% 122
2021
Q2 		– Sell
-90,000
Closed -$4.05M – 246
2021
Q1 		$4.05M Sell
90,000
-200,000
-69% -$11.2M 0.14% 139
2020
Q4 		$16.4M Buy
+290,000
New +$14.5M 0.72% 33

Other funds holding IONS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Ikarian Capital's IONS Position: Q2 2026 in Review

Ikarian Capital sold out of Ionis Pharmaceuticals (IONS) in Q2 2026, closing a stake of 127,038 shares — an estimated $9.56M sold.

Ikarian Capital first reported a position in IONS in Q3 2025 and held it in 3 quarters. The position peaked at $27.2M in Q3 2025. 514 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Ikarian Capital reported no remaining Ionis Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • Ikarian Capital sold 127,038 Ionis Pharmaceuticals shares in Q2 2026, an estimated $9.56M.
  • Ikarian Capital first reported a position in Ionis Pharmaceuticals in Q3 2025 and held it in 3 quarters.
  • Ikarian Capital's Ionis Pharmaceuticals position peaked at $27.2M in Q3 2025.
  • 514 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Ikarian Capital's 13F filing for Q2 2026, filed 14 Aug 2026.