Vanguard Portfolio Management
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Vanguard Portfolio Management’s Ionis Pharmaceuticals IONS Stock Holding History

Vanguard Portfolio 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
Q2 		$623M Buy
7,859,529
+50,627
+0.6% +$3.81M 0.03% 610
2026
Q1 		$586M Buy
+7,808,902
New +$616M 0.03% 597

Other funds holding IONS

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 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Portfolio Management's IONS Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Ionis Pharmaceuticals (IONS) stake by 0.65% in Q2 2026, buying an estimated $3.81M and bringing the position to 7,859,529 shares worth $623M. The position accounts for 0.03% of the portfolio, ranked #610.

Vanguard Portfolio Management first reported a position in IONS in Q1 2026 and has held it in 2 quarters since. 477 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Vanguard Portfolio Management held 7,859,529 shares of Ionis Pharmaceuticals worth $623M as of Q2 2026.
  • Vanguard Portfolio Management bought 50,627 Ionis Pharmaceuticals shares in Q2 2026, an estimated $3.81M.
  • Ionis Pharmaceuticals made up 0.03% of Vanguard Portfolio Management's portfolio in Q2 2026, its #610 holding.
  • Vanguard Portfolio Management first reported a position in Ionis Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • 477 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.