Bank of Montreal
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Bank of Montreal’s Ionis Pharmaceuticals IONS Stock Holding History

Bank of Montreal’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 		$4.95M Buy
+62,400
New +$4.7M ﹤0.01% 1372
2024
Q2 		– Sell
-130,000
Closed -$6.14M – 4054
2024
Q1 		$6.14M Buy
+130,000
New +$6.2M ﹤0.01% 1139
2023
Q3 		– Sell
-58,000
Closed -$2.41M – 4021
2023
Q2 		$2.41M Sell
58,000
-12,000
-17% -$461K ﹤0.01% 1708
2023
Q1 		$2.5M Sell
70,000
-9,100
-12% -$342K ﹤0.01% 1587
2022
Q4 		$3.28M Buy
79,100
+16,900
+27% +$711K ﹤0.01% 1528
2022
Q3 		$2.91M Buy
+62,200
New +$2.62M ﹤0.01% 1638
2014
Q3 		– Sell
-40,000
Closed -$1.38M – 4201
2014
Q2 		$1.38M Sell
40,000
-68,600
-63% -$2.16M ﹤0.01% 1601
2014
Q1 		$4.69M Buy
+108,600
New +$5.26M 0.01% 960
2013
Q4 		– Sell
-22,200
Closed -$833K – 3819
2013
Q3 		$833K Sell
22,200
-2,800
-11% -$83.6K ﹤0.01% 1535
2013
Q2 		$672K Buy
+25,000
New +$532K ﹤0.01% 1592

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 $3.38T AUM 44.17% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Bank of Montreal's IONS Position: Q2 2026 in Review

Bank of Montreal reduced its Ionis Pharmaceuticals (IONS) stake by 3% in Q2 2026, selling an estimated $60.4K and leaving 25,782 shares worth $2.04M. The position accounts for ﹤0.01% of the portfolio, ranked #1728.

Bank of Montreal first reported a position in IONS in Q2 2013 and has held it in 53 quarters since. The position peaked at $48.9M in Q3 2025. 515 funds tracked by Wall St. Rank hold IONS as of Q2 2026.

  • Bank of Montreal held 25,782 shares of Ionis Pharmaceuticals worth $2.04M as of Q2 2026.
  • Bank of Montreal sold 803 Ionis Pharmaceuticals shares in Q2 2026, an estimated $60.4K.
  • Ionis Pharmaceuticals made up ﹤0.01% of Bank of Montreal's portfolio in Q2 2026, its #1728 holding.
  • Bank of Montreal first reported a position in Ionis Pharmaceuticals in Q2 2013 and has held it in 53 quarters since.
  • Bank of Montreal's Ionis Pharmaceuticals position peaked at $48.9M in Q3 2025.
  • 515 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q2 2026.

Based on Bank of Montreal's 13F filing for Q2 2026, filed 12 Aug 2026.