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Marex Group’s Ionis Pharmaceuticals IONS Stock Holding History

Marex Group’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 		$808K Buy
10,189
+6,579
+182% +$495K ﹤0.01% 554
2026
Q1 		$271K Buy
3,610
+86
+2% +$6.79K ﹤0.01% 807
2025
Q4 		$279K Sell
3,524
-3,198
-48% -$241K ﹤0.01% 724
2025
Q3 		$440K Sell
6,722
-76,639
-92% -$3.74M ﹤0.01% 522
2025
Q2 		$3.29M Buy
+83,361
New +$2.73M 0.03% 190

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

Marex Group's IONS Position: Q2 2026 in Review

Marex Group increased its Ionis Pharmaceuticals (IONS) stake by 182% in Q2 2026, buying an estimated $495K and bringing the position to 10,189 shares worth $808K. The position accounts for ﹤0.01% of the portfolio, ranked #554.

Marex Group first reported a position in IONS in Q2 2025 and has held it in 5 quarters since. The position peaked at $3.29M in Q2 2025. 514 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Marex Group held 10,189 shares of Ionis Pharmaceuticals worth $808K as of Q2 2026.
  • Marex Group bought 6,579 Ionis Pharmaceuticals shares in Q2 2026, an estimated $495K.
  • Ionis Pharmaceuticals made up ﹤0.01% of Marex Group's portfolio in Q2 2026, its #554 holding.
  • Marex Group first reported a position in Ionis Pharmaceuticals in Q2 2025 and has held it in 5 quarters since.
  • Marex Group's Ionis Pharmaceuticals position peaked at $3.29M in Q2 2025.
  • 514 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Marex Group's 13F filing for Q2 2026, filed 14 Aug 2026.