Bank of Montreal
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Bank of Montreal’s Iridium Communications IRDM Stock Holding History

Bank of Montreal’s Portfolio IRDM Stock Details IRDM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2017
Q4 		– Sell
-5,800
Closed -$60K – 4242
2017
Q3 		$60K Sell
5,800
-8,200
-59% -$85K ﹤0.01% 3161
2017
Q2 		$155K Buy
14,000
+5,800
+71% +$60.6K ﹤0.01% 2786
2017
Q1 		$79K Buy
+8,200
New +$78.2K ﹤0.01% 2921

Other funds holding IRDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $260M AUM 6.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
GAM
Gotham Asset Management New York $32.7B AUM 27.65% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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

Bank of Montreal reduced its Iridium Communications (IRDM) stake by 0.92% in Q1 2026, selling an estimated $3.24K and leaving 15,530 shares worth $431K. The position accounts for ﹤0.01% of the portfolio, ranked #2461.

Bank of Montreal first reported a position in IRDM in Q2 2013 and has held it in 50 quarters since. The position peaked at $36.2M in Q2 2023. 381 funds tracked by Wall St. Rank hold IRDM as of Q1 2026.

  • Bank of Montreal held 15,530 shares of Iridium Communications worth $431K as of Q1 2026.
  • Bank of Montreal sold 144 Iridium Communications shares in Q1 2026, an estimated $3.24K.
  • Iridium Communications made up ﹤0.01% of Bank of Montreal's portfolio in Q1 2026, its #2461 holding.
  • Bank of Montreal first reported a position in Iridium Communications in Q2 2013 and has held it in 50 quarters since.
  • Bank of Montreal's Iridium Communications position peaked at $36.2M in Q2 2023.
  • 381 funds tracked by Wall St. Rank held Iridium Communications as of Q1 2026.

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