Bank of Montreal
IONS icon

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
2014
Q4 		– Sell
-10,000
Closed -$388K – 4086
2014
Q3 		$388K Buy
10,000
+2,200
+28% +$78K ﹤0.01% 2202
2014
Q2 		$269K Buy
7,800
+7,700
+7,700% +$242K ﹤0.01% 2393
2014
Q1 		$4K Buy
+100
New +$4.85K ﹤0.01% 3827
2013
Q4 		– Sell
-16,500
Closed -$619K – 3820
2013
Q3 		$619K Buy
16,500
+3,000
+22% +$89.6K ﹤0.01% 1701
2013
Q2 		$363K Buy
+13,500
New +$287K ﹤0.01% 1904

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 $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 1-Year Est. Return

Bank of Montreal's IONS Position: Q1 2026 in Review

Bank of Montreal reduced its Ionis Pharmaceuticals (IONS) stake by 27% in Q1 2026, selling an estimated $772K and leaving 26,585 shares worth $2M. The position accounts for ﹤0.01% of the portfolio, ranked #1669.

Bank of Montreal first reported a position in IONS in Q2 2013 and has held it in 52 quarters since. The position peaked at $48.9M in Q3 2025. 494 funds tracked by Wall St. Rank hold IONS as of Q1 2026.

  • Bank of Montreal held 26,585 shares of Ionis Pharmaceuticals worth $2M as of Q1 2026.
  • Bank of Montreal sold 9,777 Ionis Pharmaceuticals shares in Q1 2026, an estimated $772K.
  • Ionis Pharmaceuticals made up ﹤0.01% of Bank of Montreal's portfolio in Q1 2026, its #1669 holding.
  • Bank of Montreal first reported a position in Ionis Pharmaceuticals in Q2 2013 and has held it in 52 quarters since.
  • Bank of Montreal's Ionis Pharmaceuticals position peaked at $48.9M in Q3 2025.
  • 494 funds tracked by Wall St. Rank held Ionis Pharmaceuticals as of Q1 2026.

Based on Bank of Montreal's 13F filing for Q1 2026, filed 13 May 2026.