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
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SHCM
Silver Heights Capital Management Toronto, Ontario, Canada $324M AUM 55.4% 1-Year Est. Return
GAM
Gotham Asset Management New York $43B AUM 34.97% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

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

Bank of Montreal increased its Iridium Communications (IRDM) stake by 8.9% in Q2 2026, buying an estimated $58.9K and bringing the position to 16,907 shares worth $927K. The position accounts for ﹤0.01% of the portfolio, ranked #2123.

Bank of Montreal first reported a position in IRDM in Q2 2013 and has held it in 51 quarters since. The position peaked at $36.2M in Q2 2023. 484 funds tracked by Wall St. Rank hold IRDM as of Q2 2026.

  • Bank of Montreal held 16,907 shares of Iridium Communications worth $927K as of Q2 2026.
  • Bank of Montreal bought 1,377 Iridium Communications shares in Q2 2026, an estimated $58.9K.
  • Iridium Communications made up ﹤0.01% of Bank of Montreal's portfolio in Q2 2026, its #2123 holding.
  • Bank of Montreal first reported a position in Iridium Communications in Q2 2013 and has held it in 51 quarters since.
  • Bank of Montreal's Iridium Communications position peaked at $36.2M in Q2 2023.
  • 484 funds tracked by Wall St. Rank held Iridium Communications as of Q2 2026.

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