BAMCO Inc
IONS icon

BAMCO Inc’s Ionis Pharmaceuticals IONS Stock Holding History

BAMCO Inc’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 		$1.11M Sell
14,000
-31,000
-69% -$2.33M ﹤0.01% 296
2026
Q1 		$3.38M Buy
45,000
+9,000
+25% +$710K 0.01% 262
2025
Q4 		$2.85M Buy
36,000
+11,000
+44% +$828K 0.01% 273
2025
Q3 		$1.64M Buy
+25,000
New +$1.22M ﹤0.01% 287
2014
Q2 		– Sell
-45,251
Closed -$1.96M – 368
2014
Q1 		$1.96M Buy
+45,251
New +$2.19M 0.01% 285

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

BAMCO Inc's IONS Position: Q2 2026 in Review

BAMCO Inc reduced its Ionis Pharmaceuticals (IONS) stake by 69% in Q2 2026, selling an estimated $2.33M and leaving 14,000 shares worth $1.11M. The position accounts for ﹤0.01% of the portfolio, ranked #296.

BAMCO Inc first reported a position in IONS in Q1 2014 and has held it in 5 quarters since. The position peaked at $3.38M in Q1 2026. 513 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • BAMCO Inc held 14,000 shares of Ionis Pharmaceuticals worth $1.11M as of Q2 2026.
  • BAMCO Inc sold 31,000 Ionis Pharmaceuticals shares in Q2 2026, an estimated $2.33M.
  • Ionis Pharmaceuticals made up ﹤0.01% of BAMCO Inc's portfolio in Q2 2026, its #296 holding.
  • BAMCO Inc first reported a position in Ionis Pharmaceuticals in Q1 2014 and has held it in 5 quarters since.
  • BAMCO Inc's Ionis Pharmaceuticals position peaked at $3.38M in Q1 2026.
  • 513 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on BAMCO Inc's 13F filing for Q2 2026, filed 14 Aug 2026.