EI
IONS icon

EAM Investors’s Ionis Pharmaceuticals IONS Stock Holding History

EAM 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 		$1.55M Sell
20,608
-33,306
-62% -$2.63M 0.18% 183
2025
Q4 		$4.27M Sell
53,914
-1,063
-2% -$80K 0.48% 106
2025
Q3 		$3.54M Buy
+54,977
New +$2.68M 0.41% 123
2023
Q4 		– Sell
-29,262
Closed -$1.33M – 309
2023
Q3 		$1.33M Buy
+29,262
New +$1.21M 0.26% 187
2022
Q4 		– Sell
-28,396
Closed -$1.26M – 303
2022
Q3 		$1.26M Buy
+28,396
New +$1.2M 0.27% 157

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 $5.72T 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 $124B 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

EAM Investors's IONS Position: Q1 2026 in Review

EAM Investors reduced its Ionis Pharmaceuticals (IONS) stake by 62% in Q1 2026, selling an estimated $2.63M and leaving 20,608 shares worth $1.55M. The position accounts for 0.18% of the portfolio, ranked #183.

EAM Investors first reported a position in IONS in Q3 2022 and has held it in 5 quarters since. The position peaked at $4.27M in Q4 2025. 493 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

  • EAM Investors held 20,608 shares of Ionis Pharmaceuticals worth $1.55M as of Q1 2026.
  • EAM Investors sold 33,306 Ionis Pharmaceuticals shares in Q1 2026, an estimated $2.63M.
  • Ionis Pharmaceuticals made up 0.18% of EAM Investors's portfolio in Q1 2026, its #183 holding.
  • EAM Investors first reported a position in Ionis Pharmaceuticals in Q3 2022 and has held it in 5 quarters since.
  • EAM Investors's Ionis Pharmaceuticals position peaked at $4.27M in Q4 2025.
  • 493 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on EAM Investors's 13F filing for Q1 2026, filed 13 May 2026.